From a47161a55e40203e5dae6d04df3b159551377365 Mon Sep 17 00:00:00 2001
From: Ilya Yanok <yanok@emcraft.com>
Date: Sun, 20 Nov 2011 19:15:39 +0100
Subject: [PATCH 001/108] OMAPDSS: add FocalTech ETM070003DH6 display support

Add data for the FocalTech ETM070003DH6 display to the generic_dpi_panel
display driver.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 .../video/omap2/displays/panel-generic-dpi.c  | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c b/drivers/video/omap2/displays/panel-generic-dpi.c
index 519c47d2057f..593f83120220 100644
--- a/drivers/video/omap2/displays/panel-generic-dpi.c
+++ b/drivers/video/omap2/displays/panel-generic-dpi.c
@@ -297,6 +297,26 @@ static struct panel_config generic_dpi_panels[] = {
 
 		.name			= "apollon",
 	},
+	/* FocalTech ETM070003DH6 */
+	{
+		{
+			.x_res		= 800,
+			.y_res		= 480,
+
+			.pixel_clock	= 28000,
+
+			.hsw		= 48,
+			.hfp		= 40,
+			.hbp		= 40,
+
+			.vsw		= 3,
+			.vfp		= 13,
+			.vbp		= 29,
+		},
+		.config			= OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+					  OMAP_DSS_LCD_IHS,
+		.name			= "focaltech_etm070003dh6",
+	},
 };
 
 struct panel_drv_data {

From a702c85906390282e2aabb6cb30e448e23ee1599 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 12 Oct 2011 10:10:21 +0300
Subject: [PATCH 002/108] OMAPDSS: DSI: flush posted write when entering ULPS

Flush posted write between writing the ULPS enable bits and waiting for
the interrupt.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 5abf8e7e7456..1331f92f11c2 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3561,6 +3561,9 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
 	REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, (1 << 0) | (1 << 1) | (1 << 2),
 		7, 5);
 
+	/* flush posted write and wait for SCP interface to finish the write */
+	dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG2);
+
 	if (wait_for_completion_timeout(&completion,
 				msecs_to_jiffies(1000)) == 0) {
 		DSSERR("ULPS enable timeout\n");
@@ -3575,6 +3578,9 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
 	REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, (0 << 0) | (0 << 1) | (0 << 2),
 		7, 5);
 
+	/* flush posted write and wait for SCP interface to finish the write */
+	dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG2);
+
 	dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_ULPS);
 
 	dsi_if_enable(dsidev, false);

From 968f8e97a3291a3c7c9a2dee1a85a092de638f65 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 12 Oct 2011 10:13:14 +0300
Subject: [PATCH 003/108] OMAPDSS: DSI: flush posted write in send_bta

Flush posted write after setting the bit to send the BTA to ensure the
BTA is sent right away, as the code in dsi_vc_send_bta_sync() waits for
an interrupt caused indirectly by sending the BTA.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 1331f92f11c2..4b1c07443753 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2913,6 +2913,9 @@ static int dsi_vc_send_bta(struct platform_device *dsidev, int channel)
 
 	REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */
 
+	/* flush posted write */
+	dsi_read_reg(dsidev, DSI_VC_CTRL(channel));
+
 	return 0;
 }
 

From b6a44e7748527d01b0c2f9a67686babaf0a5e53b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 12 Oct 2011 10:17:02 +0300
Subject: [PATCH 004/108] OMAPDSS: DISPC: Flush posted writes when enabling
 outputs

Flush posted write in _enable_lcd_out() and _enable_digit_out(). This
ensures the the lcd/digit bit is written before the code starts waiting
for interrupts about enabling/disabling the output.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 5c81533eacaa..5bbd838a657a 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1916,10 +1916,14 @@ static void dispc_disable_isr(void *data, u32 mask)
 
 static void _enable_lcd_out(enum omap_channel channel, bool enable)
 {
-	if (channel == OMAP_DSS_CHANNEL_LCD2)
+	if (channel == OMAP_DSS_CHANNEL_LCD2) {
 		REG_FLD_MOD(DISPC_CONTROL2, enable ? 1 : 0, 0, 0);
-	else
+		/* flush posted write */
+		dispc_read_reg(DISPC_CONTROL2);
+	} else {
 		REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
+		dispc_read_reg(DISPC_CONTROL);
+	}
 }
 
 static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
@@ -1967,6 +1971,8 @@ static void dispc_mgr_enable_lcd_out(enum omap_channel channel, bool enable)
 static void _enable_digit_out(bool enable)
 {
 	REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
+	/* flush posted write */
+	dispc_read_reg(DISPC_CONTROL);
 }
 
 static void dispc_mgr_enable_digit_out(bool enable)

From d982085050e67da24a57ec04eb3701eb4805118a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 12 Oct 2011 15:05:59 +0300
Subject: [PATCH 005/108] OMAPDSS: DSI: count with number of lanes

DSI driver currently counts used lanes and number of supported lanes by
using the number of data lanes (i.e. excluding clock lane). This patch
changes this to use the number of all lanes so that the following lane
config patches are cleaner.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 49 ++++++++++++++++-------------------
 1 file changed, 22 insertions(+), 27 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 4b1c07443753..6a110b2bca4f 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -327,7 +327,7 @@ struct dsi_data {
 	unsigned long  fint_min, fint_max;
 	unsigned long lpdiv_max;
 
-	int num_data_lanes;
+	unsigned num_lanes_supported;
 
 	unsigned scp_clk_refcount;
 };
@@ -2029,19 +2029,8 @@ static int dsi_cio_power(struct platform_device *dsidev,
 	return 0;
 }
 
-/* Number of data lanes present on DSI interface */
-static inline int dsi_get_num_data_lanes(struct platform_device *dsidev)
-{
-	/* DSI on OMAP3 doesn't have register DSI_GNQ, set number
-	 * of data lanes as 2 by default */
-	if (dss_has_feature(FEAT_DSI_GNQ))
-		return REG_GET(dsidev, DSI_GNQ, 11, 9);	/* NB_DATA_LANES */
-	else
-		return 2;
-}
-
-/* Number of data lanes used by the dss device */
-static inline int dsi_get_num_data_lanes_dssdev(struct omap_dss_device *dssdev)
+/* Number of lanes used by the dss device */
+static inline int dsi_get_num_lanes_used(struct omap_dss_device *dssdev)
 {
 	int num_data_lanes = 0;
 
@@ -2054,7 +2043,7 @@ static inline int dsi_get_num_data_lanes_dssdev(struct omap_dss_device *dssdev)
 	if (dssdev->phy.dsi.data4_lane != 0)
 		num_data_lanes++;
 
-	return num_data_lanes;
+	return num_data_lanes + 1;
 }
 
 static unsigned dsi_get_line_buf_size(struct platform_device *dsidev)
@@ -2092,7 +2081,7 @@ static void dsi_set_lane_config(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	u32 r;
-	int num_data_lanes_dssdev = dsi_get_num_data_lanes_dssdev(dssdev);
+	int num_lanes_used = dsi_get_num_lanes_used(dssdev);
 
 	int clk_lane   = dssdev->phy.dsi.clk_lane;
 	int data1_lane = dssdev->phy.dsi.data1_lane;
@@ -2108,14 +2097,14 @@ static void dsi_set_lane_config(struct omap_dss_device *dssdev)
 	r = FLD_MOD(r, data1_pol, 7, 7);
 	r = FLD_MOD(r, data2_lane, 10, 8);
 	r = FLD_MOD(r, data2_pol, 11, 11);
-	if (num_data_lanes_dssdev > 2) {
+	if (num_lanes_used > 3) {
 		int data3_lane  = dssdev->phy.dsi.data3_lane;
 		int data3_pol  = dssdev->phy.dsi.data3_pol;
 
 		r = FLD_MOD(r, data3_lane, 14, 12);
 		r = FLD_MOD(r, data3_pol, 15, 15);
 	}
-	if (num_data_lanes_dssdev > 3) {
+	if (num_lanes_used > 4) {
 		int data4_lane  = dssdev->phy.dsi.data4_lane;
 		int data4_pol  = dssdev->phy.dsi.data4_pol;
 
@@ -2247,7 +2236,7 @@ static void dsi_cio_enable_lane_override(struct omap_dss_device *dssdev,
 	int data4_pol  = dssdev->phy.dsi.data4_pol;
 
 	u32 l = 0;
-	u8 lptxscp_start = dsi->num_data_lanes == 2 ? 22 : 26;
+	u8 lptxscp_start = dsi->num_lanes_supported == 3 ? 22 : 26;
 
 	if (lanes & DSI_CLK_P)
 		l |= 1 << ((clk_lane - 1) * 2 + (clk_pol ? 0 : 1));
@@ -2385,7 +2374,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	int r;
-	int num_data_lanes_dssdev = dsi_get_num_data_lanes_dssdev(dssdev);
+	int num_lanes_used = dsi_get_num_lanes_used(dssdev);
 	u32 l;
 
 	DSSDBGF();
@@ -2430,10 +2419,10 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 		 * manually.
 		 */
 
-		if (num_data_lanes_dssdev > 2)
+		if (num_lanes_used > 3)
 			lane_mask |= DSI_DATA3_P;
 
-		if (num_data_lanes_dssdev > 3)
+		if (num_lanes_used > 4)
 			lane_mask |= DSI_DATA4_P;
 
 		dsi_cio_enable_lane_override(dssdev, lane_mask);
@@ -3852,7 +3841,7 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
 	unsigned ddr_clk_pre, ddr_clk_post;
 	unsigned enter_hs_mode_lat, exit_hs_mode_lat;
 	unsigned ths_eot;
-	int ndl = dsi_get_num_data_lanes_dssdev(dssdev);
+	int ndl = dsi_get_num_lanes_used(dssdev) - 1;
 	u32 r;
 
 	r = dsi_read_reg(dsidev, DSI_DSIPHY_CFG0);
@@ -4552,9 +4541,9 @@ int dsi_init_display(struct omap_dss_device *dssdev)
 		dsi->vdds_dsi_reg = vdds_dsi;
 	}
 
-	if (dsi_get_num_data_lanes_dssdev(dssdev) > dsi->num_data_lanes) {
-		DSSERR("DSI%d can't support more than %d data lanes\n",
-			dsi_module + 1, dsi->num_data_lanes);
+	if (dsi_get_num_lanes_used(dssdev) > dsi->num_lanes_supported) {
+		DSSERR("DSI%d can't support more than %d lanes\n",
+			dsi_module + 1, dsi->num_lanes_supported);
 		return -EINVAL;
 	}
 
@@ -4780,7 +4769,13 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 	dev_dbg(&dsidev->dev, "OMAP DSI rev %d.%d\n",
 	       FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
 
-	dsi->num_data_lanes = dsi_get_num_data_lanes(dsidev);
+	/* DSI on OMAP3 doesn't have register DSI_GNQ, set number
+	 * of data to 3 by default */
+	if (dss_has_feature(FEAT_DSI_GNQ))
+		/* NB_DATA_LANES */
+		dsi->num_lanes_supported = 1 + REG_GET(dsidev, DSI_GNQ, 11, 9);
+	else
+		dsi->num_lanes_supported = 3;
 
 	dsi_runtime_put(dsidev);
 

From 739a7f46cbf6dc3d4f899e4b566196d99403457a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 11:22:06 +0300
Subject: [PATCH 006/108] OMAPDSS: DSI: Parse lane config

Parse the lane configuration from the device data into internal lane
config format. This will be used in the following patches to clean up
the lane handling.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 83 +++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 6a110b2bca4f..aea110c9d638 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -203,6 +203,21 @@ struct dsi_reg { u16 idx; };
 typedef void (*omap_dsi_isr_t) (void *arg, u32 mask);
 
 #define DSI_MAX_NR_ISRS                2
+#define DSI_MAX_NR_LANES	5
+
+enum dsi_lane_function {
+	DSI_LANE_UNUSED	= 0,
+	DSI_LANE_CLK,
+	DSI_LANE_DATA1,
+	DSI_LANE_DATA2,
+	DSI_LANE_DATA3,
+	DSI_LANE_DATA4,
+};
+
+struct dsi_lane_config {
+	enum dsi_lane_function function;
+	u8 polarity;
+};
 
 struct dsi_isr_data {
 	omap_dsi_isr_t	isr;
@@ -329,6 +344,9 @@ struct dsi_data {
 
 	unsigned num_lanes_supported;
 
+	struct dsi_lane_config lanes[DSI_MAX_NR_LANES];
+	unsigned num_lanes_used;
+
 	unsigned scp_clk_refcount;
 };
 
@@ -2077,6 +2095,65 @@ static unsigned dsi_get_line_buf_size(struct platform_device *dsidev)
 	}
 }
 
+static int dsi_parse_lane_config(struct omap_dss_device *dssdev)
+{
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	u8 lanes[DSI_MAX_NR_LANES];
+	u8 polarities[DSI_MAX_NR_LANES];
+	int num_lanes, i;
+
+	static const enum dsi_lane_function functions[] = {
+		DSI_LANE_CLK,
+		DSI_LANE_DATA1,
+		DSI_LANE_DATA2,
+		DSI_LANE_DATA3,
+		DSI_LANE_DATA4,
+	};
+
+	lanes[0] = dssdev->phy.dsi.clk_lane;
+	lanes[1] = dssdev->phy.dsi.data1_lane;
+	lanes[2] = dssdev->phy.dsi.data2_lane;
+	lanes[3] = dssdev->phy.dsi.data3_lane;
+	lanes[4] = dssdev->phy.dsi.data4_lane;
+	polarities[0] = dssdev->phy.dsi.clk_pol;
+	polarities[1] = dssdev->phy.dsi.data1_pol;
+	polarities[2] = dssdev->phy.dsi.data2_pol;
+	polarities[3] = dssdev->phy.dsi.data3_pol;
+	polarities[4] = dssdev->phy.dsi.data4_pol;
+
+	num_lanes = 0;
+
+	for (i = 0; i < dsi->num_lanes_supported; ++i)
+		dsi->lanes[i].function = DSI_LANE_UNUSED;
+
+	for (i = 0; i < dsi->num_lanes_supported; ++i) {
+		int num;
+
+		if (lanes[i] == DSI_LANE_UNUSED)
+			break;
+
+		num = lanes[i] - 1;
+
+		if (num >= dsi->num_lanes_supported)
+			return -EINVAL;
+
+		if (dsi->lanes[num].function != DSI_LANE_UNUSED)
+			return -EINVAL;
+
+		dsi->lanes[num].function = functions[i];
+		dsi->lanes[num].polarity = polarities[i];
+		num_lanes++;
+	}
+
+	if (num_lanes < 2 || num_lanes > dsi->num_lanes_supported)
+		return -EINVAL;
+
+	dsi->num_lanes_used = num_lanes;
+
+	return 0;
+}
+
 static void dsi_set_lane_config(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
@@ -4328,6 +4405,12 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
 	int dsi_module = dsi_get_dsidev_id(dsidev);
 	int r;
 
+	r = dsi_parse_lane_config(dssdev);
+	if (r) {
+		DSSERR("illegal lane config");
+		goto err0;
+	}
+
 	r = dsi_pll_init(dsidev, true, true);
 	if (r)
 		goto err0;

From 48368395f670ac8cc60288674de940a38693412e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 11:22:39 +0300
Subject: [PATCH 007/108] OMAPDSS: DSI: Use new lane config in
 dsi_set_lane_config

Use the new lane config in dsi_set_lane_config().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 84 +++++++++++++++++------------------
 1 file changed, 40 insertions(+), 44 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index aea110c9d638..ba8d6b328a38 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2154,59 +2154,53 @@ static int dsi_parse_lane_config(struct omap_dss_device *dssdev)
 	return 0;
 }
 
-static void dsi_set_lane_config(struct omap_dss_device *dssdev)
+static int dsi_set_lane_config(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	static const u8 offsets[] = { 0, 4, 8, 12, 16 };
+	static const enum dsi_lane_function functions[] = {
+		DSI_LANE_CLK,
+		DSI_LANE_DATA1,
+		DSI_LANE_DATA2,
+		DSI_LANE_DATA3,
+		DSI_LANE_DATA4,
+	};
 	u32 r;
-	int num_lanes_used = dsi_get_num_lanes_used(dssdev);
-
-	int clk_lane   = dssdev->phy.dsi.clk_lane;
-	int data1_lane = dssdev->phy.dsi.data1_lane;
-	int data2_lane = dssdev->phy.dsi.data2_lane;
-	int clk_pol    = dssdev->phy.dsi.clk_pol;
-	int data1_pol  = dssdev->phy.dsi.data1_pol;
-	int data2_pol  = dssdev->phy.dsi.data2_pol;
+	int i;
 
 	r = dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG1);
-	r = FLD_MOD(r, clk_lane, 2, 0);
-	r = FLD_MOD(r, clk_pol, 3, 3);
-	r = FLD_MOD(r, data1_lane, 6, 4);
-	r = FLD_MOD(r, data1_pol, 7, 7);
-	r = FLD_MOD(r, data2_lane, 10, 8);
-	r = FLD_MOD(r, data2_pol, 11, 11);
-	if (num_lanes_used > 3) {
-		int data3_lane  = dssdev->phy.dsi.data3_lane;
-		int data3_pol  = dssdev->phy.dsi.data3_pol;
 
-		r = FLD_MOD(r, data3_lane, 14, 12);
-		r = FLD_MOD(r, data3_pol, 15, 15);
-	}
-	if (num_lanes_used > 4) {
-		int data4_lane  = dssdev->phy.dsi.data4_lane;
-		int data4_pol  = dssdev->phy.dsi.data4_pol;
+	for (i = 0; i < dsi->num_lanes_used; ++i) {
+		unsigned offset = offsets[i];
+		unsigned polarity, lane_number;
+		unsigned t;
 
-		r = FLD_MOD(r, data4_lane, 18, 16);
-		r = FLD_MOD(r, data4_pol, 19, 19);
+		for (t = 0; t < dsi->num_lanes_supported; ++t)
+			if (dsi->lanes[t].function == functions[i])
+				break;
+
+		if (t == dsi->num_lanes_supported)
+			return -EINVAL;
+
+		lane_number = t;
+		polarity = dsi->lanes[t].polarity;
+
+		r = FLD_MOD(r, lane_number + 1, offset + 2, offset);
+		r = FLD_MOD(r, polarity, offset + 3, offset + 3);
 	}
+
+	/* clear the unused lanes */
+	for (; i < dsi->num_lanes_supported; ++i) {
+		unsigned offset = offsets[i];
+
+		r = FLD_MOD(r, 0, offset + 2, offset);
+		r = FLD_MOD(r, 0, offset + 3, offset + 3);
+	}
+
 	dsi_write_reg(dsidev, DSI_COMPLEXIO_CFG1, r);
 
-	/* The configuration of the DSI complex I/O (number of data lanes,
-	   position, differential order) should not be changed while
-	   DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for
-	   the hardware to take into account a new configuration of the complex
-	   I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to
-	   follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1,
-	   then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set
-	   DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the
-	   DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the
-	   DSI complex I/O configuration is unknown. */
-
-	/*
-	REG_FLD_MOD(dsidev, DSI_CTRL, 1, 0, 0);
-	REG_FLD_MOD(dsidev, DSI_CTRL, 0, 0, 0);
-	REG_FLD_MOD(dsidev, DSI_CLK_CTRL, 1, 20, 20);
-	REG_FLD_MOD(dsidev, DSI_CTRL, 1, 0, 0);
-	*/
+	return 0;
 }
 
 static inline unsigned ns2ddr(struct platform_device *dsidev, unsigned ns)
@@ -2473,7 +2467,9 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 		goto err_scp_clk_dom;
 	}
 
-	dsi_set_lane_config(dssdev);
+	r = dsi_set_lane_config(dssdev);
+	if (r)
+		goto err_scp_clk_dom;
 
 	/* set TX STOP MODE timer to maximum for this operation */
 	l = dsi_read_reg(dsidev, DSI_TIMING1);

From 85f17e8e2c8d5f9266ca28f05cbc57598eddb05a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 15:12:23 +0300
Subject: [PATCH 008/108] OMAPDSS: DSI: use lane config in dsi_get_lane_mask

Use the new lane config in dsi_get_lane_mask().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index ba8d6b328a38..1a209a23f515 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2422,22 +2422,20 @@ static int dsi_cio_wait_tx_clk_esc_reset(struct omap_dss_device *dssdev)
 	return 0;
 }
 
+/* return bitmask of enabled lanes, lane0 being the lsb */
 static unsigned dsi_get_lane_mask(struct omap_dss_device *dssdev)
 {
-	unsigned lanes = 0;
+	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	unsigned mask = 0;
+	int i;
 
-	if (dssdev->phy.dsi.clk_lane != 0)
-		lanes |= 1 << (dssdev->phy.dsi.clk_lane - 1);
-	if (dssdev->phy.dsi.data1_lane != 0)
-		lanes |= 1 << (dssdev->phy.dsi.data1_lane - 1);
-	if (dssdev->phy.dsi.data2_lane != 0)
-		lanes |= 1 << (dssdev->phy.dsi.data2_lane - 1);
-	if (dssdev->phy.dsi.data3_lane != 0)
-		lanes |= 1 << (dssdev->phy.dsi.data3_lane - 1);
-	if (dssdev->phy.dsi.data4_lane != 0)
-		lanes |= 1 << (dssdev->phy.dsi.data4_lane - 1);
+	for (i = 0; i < dsi->num_lanes_supported; ++i) {
+		if (dsi->lanes[i].function != DSI_LANE_UNUSED)
+			mask |= 1 << i;
+	}
 
-	return lanes;
+	return mask;
 }
 
 static int dsi_cio_init(struct omap_dss_device *dssdev)

From 8dc0766fcf3b84ec83aa601acabf21f2c98ca253 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 15:26:50 +0300
Subject: [PATCH 009/108] OMAPDSS: DSI: use lane config in
 dsi_cio_wait_tx_clk_esc_reset

Use the new lane config in dsi_cio_wait_tx_clk_esc_reset(). This also
extends the function to support 5 lanes on OMAP4, instead of 3 lanes.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 45 +++++++++++++----------------------
 1 file changed, 17 insertions(+), 28 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 1a209a23f515..52cf97f52172 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2365,51 +2365,40 @@ static void dsi_cio_disable_lane_override(struct platform_device *dsidev)
 static int dsi_cio_wait_tx_clk_esc_reset(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-	int t;
-	int bits[3];
-	bool in_use[3];
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	int t, i;
+	bool in_use[DSI_MAX_NR_LANES];
+	static const u8 offsets_old[] = { 28, 27, 26 };
+	static const u8 offsets_new[] = { 24, 25, 26, 27, 28 };
+	const u8 *offsets;
 
-	if (dss_has_feature(FEAT_DSI_REVERSE_TXCLKESC)) {
-		bits[0] = 28;
-		bits[1] = 27;
-		bits[2] = 26;
-	} else {
-		bits[0] = 24;
-		bits[1] = 25;
-		bits[2] = 26;
-	}
+	if (dss_has_feature(FEAT_DSI_REVERSE_TXCLKESC))
+		offsets = offsets_old;
+	else
+		offsets = offsets_new;
 
-	in_use[0] = false;
-	in_use[1] = false;
-	in_use[2] = false;
-
-	if (dssdev->phy.dsi.clk_lane != 0)
-		in_use[dssdev->phy.dsi.clk_lane - 1] = true;
-	if (dssdev->phy.dsi.data1_lane != 0)
-		in_use[dssdev->phy.dsi.data1_lane - 1] = true;
-	if (dssdev->phy.dsi.data2_lane != 0)
-		in_use[dssdev->phy.dsi.data2_lane - 1] = true;
+	for (i = 0; i < dsi->num_lanes_supported; ++i)
+		in_use[i] = dsi->lanes[i].function != DSI_LANE_UNUSED;
 
 	t = 100000;
 	while (true) {
 		u32 l;
-		int i;
 		int ok;
 
 		l = dsi_read_reg(dsidev, DSI_DSIPHY_CFG5);
 
 		ok = 0;
-		for (i = 0; i < 3; ++i) {
-			if (!in_use[i] || (l & (1 << bits[i])))
+		for (i = 0; i < dsi->num_lanes_supported; ++i) {
+			if (!in_use[i] || (l & (1 << offsets[i])))
 				ok++;
 		}
 
-		if (ok == 3)
+		if (ok == dsi->num_lanes_supported)
 			break;
 
 		if (--t == 0) {
-			for (i = 0; i < 3; ++i) {
-				if (!in_use[i] || (l & (1 << bits[i])))
+			for (i = 0; i < dsi->num_lanes_supported; ++i) {
+				if (!in_use[i] || (l & (1 << offsets[i])))
 					continue;
 
 				DSSERR("CIO TXCLKESC%d domain not coming " \

From 9b4362f2b5ad6d0cf6b5754000b8db80d0592e89 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 16:06:43 +0300
Subject: [PATCH 010/108] OMAPDSS: DSI: use lane config in
 dsi_cio_enable_lane_override

Use the new lane config in dsi_cio_enable_lane_override(). The function
parameters are also slightly changed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 77 +++++++++++------------------------
 1 file changed, 23 insertions(+), 54 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 52cf97f52172..dee95253e01d 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -238,19 +238,6 @@ enum dsi_vc_source {
 	DSI_VC_SOURCE_VP,
 };
 
-enum dsi_lane {
-	DSI_CLK_P	= 1 << 0,
-	DSI_CLK_N	= 1 << 1,
-	DSI_DATA1_P	= 1 << 2,
-	DSI_DATA1_N	= 1 << 3,
-	DSI_DATA2_P	= 1 << 4,
-	DSI_DATA2_N	= 1 << 5,
-	DSI_DATA3_P	= 1 << 6,
-	DSI_DATA3_N	= 1 << 7,
-	DSI_DATA4_P	= 1 << 8,
-	DSI_DATA4_N	= 1 << 9,
-};
-
 struct dsi_update_region {
 	u16 x, y, w, h;
 	struct omap_dss_device *device;
@@ -2290,49 +2277,28 @@ static void dsi_cio_timings(struct platform_device *dsidev)
 	dsi_write_reg(dsidev, DSI_DSIPHY_CFG2, r);
 }
 
+/* lane masks have lane 0 at lsb. mask_p for positive lines, n for negative */
 static void dsi_cio_enable_lane_override(struct omap_dss_device *dssdev,
-		enum dsi_lane lanes)
+		unsigned mask_p, unsigned mask_n)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-	int clk_lane   = dssdev->phy.dsi.clk_lane;
-	int data1_lane = dssdev->phy.dsi.data1_lane;
-	int data2_lane = dssdev->phy.dsi.data2_lane;
-	int data3_lane = dssdev->phy.dsi.data3_lane;
-	int data4_lane = dssdev->phy.dsi.data4_lane;
-	int clk_pol    = dssdev->phy.dsi.clk_pol;
-	int data1_pol  = dssdev->phy.dsi.data1_pol;
-	int data2_pol  = dssdev->phy.dsi.data2_pol;
-	int data3_pol  = dssdev->phy.dsi.data3_pol;
-	int data4_pol  = dssdev->phy.dsi.data4_pol;
-
-	u32 l = 0;
+	int i;
+	u32 l;
 	u8 lptxscp_start = dsi->num_lanes_supported == 3 ? 22 : 26;
 
-	if (lanes & DSI_CLK_P)
-		l |= 1 << ((clk_lane - 1) * 2 + (clk_pol ? 0 : 1));
-	if (lanes & DSI_CLK_N)
-		l |= 1 << ((clk_lane - 1) * 2 + (clk_pol ? 1 : 0));
+	l = 0;
 
-	if (lanes & DSI_DATA1_P)
-		l |= 1 << ((data1_lane - 1) * 2 + (data1_pol ? 0 : 1));
-	if (lanes & DSI_DATA1_N)
-		l |= 1 << ((data1_lane - 1) * 2 + (data1_pol ? 1 : 0));
+	for (i = 0; i < dsi->num_lanes_supported; ++i) {
+		unsigned p = dsi->lanes[i].polarity;
 
-	if (lanes & DSI_DATA2_P)
-		l |= 1 << ((data2_lane - 1) * 2 + (data2_pol ? 0 : 1));
-	if (lanes & DSI_DATA2_N)
-		l |= 1 << ((data2_lane - 1) * 2 + (data2_pol ? 1 : 0));
+		if (mask_p & (1 << i))
+			l |= 1 << (i * 2 + (p ? 0 : 1));
 
-	if (lanes & DSI_DATA3_P)
-		l |= 1 << ((data3_lane - 1) * 2 + (data3_pol ? 0 : 1));
-	if (lanes & DSI_DATA3_N)
-		l |= 1 << ((data3_lane - 1) * 2 + (data3_pol ? 1 : 0));
+		if (mask_n & (1 << i))
+			l |= 1 << (i * 2 + (p ? 1 : 0));
+	}
 
-	if (lanes & DSI_DATA4_P)
-		l |= 1 << ((data4_lane - 1) * 2 + (data4_pol ? 0 : 1));
-	if (lanes & DSI_DATA4_N)
-		l |= 1 << ((data4_lane - 1) * 2 + (data4_pol ? 1 : 0));
 	/*
 	 * Bits in REGLPTXSCPDAT4TO0DXDY:
 	 * 17: DY0 18: DX0
@@ -2432,7 +2398,6 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	int r;
-	int num_lanes_used = dsi_get_num_lanes_used(dssdev);
 	u32 l;
 
 	DSSDBGF();
@@ -2467,7 +2432,8 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 	dsi_write_reg(dsidev, DSI_TIMING1, l);
 
 	if (dsi->ulps_enabled) {
-		u32 lane_mask = DSI_CLK_P | DSI_DATA1_P | DSI_DATA2_P;
+		unsigned mask_p;
+		int i;
 
 		DSSDBG("manual ulps exit\n");
 
@@ -2476,16 +2442,19 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
 		 * ULPS exit sequence, as after reset the DSS HW thinks
 		 * that we are not in ULPS mode, and refuses to send the
 		 * sequence. So we need to send the ULPS exit sequence
-		 * manually.
+		 * manually by setting positive lines high and negative lines
+		 * low for 1ms.
 		 */
 
-		if (num_lanes_used > 3)
-			lane_mask |= DSI_DATA3_P;
+		mask_p = 0;
 
-		if (num_lanes_used > 4)
-			lane_mask |= DSI_DATA4_P;
+		for (i = 0; i < dsi->num_lanes_supported; ++i) {
+			if (dsi->lanes[i].function == DSI_LANE_UNUSED)
+				continue;
+			mask_p |= 1 << i;
+		}
 
-		dsi_cio_enable_lane_override(dssdev, lane_mask);
+		dsi_cio_enable_lane_override(dssdev, mask_p, 0);
 	}
 
 	r = dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_ON);

From db18644f90e664bf30f58cf9b8bc879598bff62f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 16:12:29 +0300
Subject: [PATCH 011/108] OMAPDSS: DSI: remove dsi_get_num_lanes_used

There's no longer need for the dsi_get_num_lanes_used function, so it
can be removed. The lane check in dsi_init_display() can be removed as
the validity of the config will be verified when parsing it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 27 ++-------------------------
 1 file changed, 2 insertions(+), 25 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index dee95253e01d..2b375c6027b6 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2034,23 +2034,6 @@ static int dsi_cio_power(struct platform_device *dsidev,
 	return 0;
 }
 
-/* Number of lanes used by the dss device */
-static inline int dsi_get_num_lanes_used(struct omap_dss_device *dssdev)
-{
-	int num_data_lanes = 0;
-
-	if (dssdev->phy.dsi.data1_lane != 0)
-		num_data_lanes++;
-	if (dssdev->phy.dsi.data2_lane != 0)
-		num_data_lanes++;
-	if (dssdev->phy.dsi.data3_lane != 0)
-		num_data_lanes++;
-	if (dssdev->phy.dsi.data4_lane != 0)
-		num_data_lanes++;
-
-	return num_data_lanes + 1;
-}
-
 static unsigned dsi_get_line_buf_size(struct platform_device *dsidev)
 {
 	int val;
@@ -3863,6 +3846,7 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
 static void dsi_proto_timings(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail;
 	unsigned tclk_pre, tclk_post;
 	unsigned ths_prepare, ths_prepare_ths_zero, ths_zero;
@@ -3870,7 +3854,7 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
 	unsigned ddr_clk_pre, ddr_clk_post;
 	unsigned enter_hs_mode_lat, exit_hs_mode_lat;
 	unsigned ths_eot;
-	int ndl = dsi_get_num_lanes_used(dssdev) - 1;
+	int ndl = dsi->num_lanes_used - 1;
 	u32 r;
 
 	r = dsi_read_reg(dsidev, DSI_DSIPHY_CFG0);
@@ -4554,7 +4538,6 @@ int dsi_init_display(struct omap_dss_device *dssdev)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-	int dsi_module = dsi_get_dsidev_id(dsidev);
 
 	DSSDBG("DSI init\n");
 
@@ -4576,12 +4559,6 @@ int dsi_init_display(struct omap_dss_device *dssdev)
 		dsi->vdds_dsi_reg = vdds_dsi;
 	}
 
-	if (dsi_get_num_lanes_used(dssdev) > dsi->num_lanes_supported) {
-		DSSERR("DSI%d can't support more than %d lanes\n",
-			dsi_module + 1, dsi->num_lanes_supported);
-		return -EINVAL;
-	}
-
 	return 0;
 }
 

From 522a0c2fe58fb6eb145cce07a303857b08322a2b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 16:18:52 +0300
Subject: [PATCH 012/108] OMAPDSS: DSI: fix lane handling when entering ULPS

The current code always enters ULPS for 3 lanes. This is not right, as
there could be only 2 lanes used, and on OMAP4 we have 5 lanes.

Fix the code to put all used lanes into ULPS.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 2b375c6027b6..22055db1dabe 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3517,7 +3517,8 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	DECLARE_COMPLETION_ONSTACK(completion);
-	int r;
+	int r, i;
+	unsigned mask;
 
 	DSSDBGF();
 
@@ -3560,10 +3561,16 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
 	if (r)
 		return r;
 
+	mask = 0;
+
+	for (i = 0; i < dsi->num_lanes_supported; ++i) {
+		if (dsi->lanes[i].function == DSI_LANE_UNUSED)
+			continue;
+		mask |= 1 << i;
+	}
 	/* Assert TxRequestEsc for data lanes and TxUlpsClk for clk lane */
 	/* LANEx_ULPS_SIG2 */
-	REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, (1 << 0) | (1 << 1) | (1 << 2),
-		7, 5);
+	REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, mask, 9, 5);
 
 	/* flush posted write and wait for SCP interface to finish the write */
 	dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG2);
@@ -3579,8 +3586,7 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
 			DSI_CIO_IRQ_ULPSACTIVENOT_ALL0);
 
 	/* Reset LANEx_ULPS_SIG2 */
-	REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, (0 << 0) | (0 << 1) | (0 << 2),
-		7, 5);
+	REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, 0, 9, 5);
 
 	/* flush posted write and wait for SCP interface to finish the write */
 	dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG2);

From 3b98409eb7508ce534243312c3a9ac8543c06808 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 19:06:49 +0300
Subject: [PATCH 013/108] OMAPDSS: DSI: improve wait_for_bit_change

We sometimes get timeout when disabling the DSI interface with video
mode. It looks like the disable will stall until the current frame has
been finished, and this can take multiple milliseconds.

wait_for_bit_change() currently uses a busyloop to wait for a bit to
change. This is used in multiple places. The problem is, we don't have
clear understanding how long particular operations can take, so the
function needs to support longer waits.

Improve wait_for_bit_change() to first busy loop for 100 times to see if
the bit changes almost right away. If the bit hasn't changed, move to a
loop with a sleep of 1ms, and poll for 500ms.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 22055db1dabe..a01a0119cc7a 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -418,14 +418,29 @@ static void dsi_completion_handler(void *data, u32 mask)
 static inline int wait_for_bit_change(struct platform_device *dsidev,
 		const struct dsi_reg idx, int bitnum, int value)
 {
-	int t = 100000;
+	unsigned long timeout;
+	ktime_t wait;
+	int t;
 
-	while (REG_GET(dsidev, idx, bitnum, bitnum) != value) {
-		if (--t == 0)
-			return !value;
+	/* first busyloop to see if the bit changes right away */
+	t = 100;
+	while (t-- > 0) {
+		if (REG_GET(dsidev, idx, bitnum, bitnum) == value)
+			return value;
 	}
 
-	return value;
+	/* then loop for 500ms, sleeping for 1ms in between */
+	timeout = jiffies + msecs_to_jiffies(500);
+	while (time_before(jiffies, timeout)) {
+		if (REG_GET(dsidev, idx, bitnum, bitnum) == value)
+			return value;
+
+		wait = ns_to_ktime(1000 * 1000);
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_hrtimeout(&wait, HRTIMER_MODE_REL);
+	}
+
+	return !value;
 }
 
 u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)

From 6cc78aa9843155c89faa93231332a8b3817020df Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 13 Oct 2011 19:22:43 +0300
Subject: [PATCH 014/108] OMAPDSS: DSI: disable DDR_CLK_ALWAYS_ON when entering
 ULPS

ULPS cannot be entered if the DDR clk is enabled. Thus disable the DDR
clk before entering ULPS.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index a01a0119cc7a..9bcb5c2511df 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3544,9 +3544,11 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
 	if (dsi->ulps_enabled)
 		return 0;
 
+	/* DDR_CLK_ALWAYS_ON */
 	if (REG_GET(dsidev, DSI_CLK_CTRL, 13, 13)) {
-		DSSERR("DDR_CLK_ALWAYS_ON enabled when entering ULPS\n");
-		return -EIO;
+		dsi_if_enable(dsidev, 0);
+		REG_FLD_MOD(dsidev, DSI_CLK_CTRL, 0, 13, 13);
+		dsi_if_enable(dsidev, 1);
 	}
 
 	dsi_sync_vc(dsidev, 0);

From 8754595796a45e88411b68005bc98310c8c6ae76 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 10:56:11 +0200
Subject: [PATCH 015/108] OMAPDSS: DISPC: add missing prototype

dispc_mgr_is_enabled() was missing a prototype in dss.h

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 6308fc59fc9e..3310f10dc161 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -414,6 +414,7 @@ void dispc_mgr_set_cpr_coef(enum omap_channel channel,
 		struct omap_dss_cpr_coefs *coefs);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
+bool dispc_mgr_is_enabled(enum omap_channel channel);
 void dispc_mgr_enable(enum omap_channel channel, bool enable);
 bool dispc_mgr_is_channel_enabled(enum omap_channel channel);
 void dispc_mgr_set_io_pad_mode(enum dss_io_pad_mode mode);

From 714ad3ac505bba711f961bb8013644c9d8fb486a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 27 Oct 2011 13:11:31 +0300
Subject: [PATCH 016/108] OMAPDSS: Remove old fifomerge hacks

Once in a time omapdss had basic support for fifomerge. Fifomerge was
removed as the implementation didn't work properly, and a proper
implementation is a complex problem.

However, some unused fifo-merge related code was left behind. This patch
removes those.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/manager.c | 26 +-------------------------
 1 file changed, 1 insertion(+), 25 deletions(-)

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 6e63845cc7d7..1be5f47a2114 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -1313,8 +1313,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	struct manager_cache_data *mc;
 	int i;
 	struct omap_overlay *ovl;
-	int num_planes_enabled = 0;
-	bool use_fifomerge;
 	unsigned long flags;
 	int r;
 
@@ -1347,11 +1345,8 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 			continue;
 		}
 
-		if (!ovl->info_dirty) {
-			if (oc->enabled)
-				++num_planes_enabled;
+		if (!ovl->info_dirty)
 			continue;
-		}
 
 		dssdev = ovl->manager->device;
 
@@ -1375,8 +1370,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 		oc->channel = ovl->manager->id;
 
 		oc->enabled = true;
-
-		++num_planes_enabled;
 	}
 
 	/* Configure managers */
@@ -1406,21 +1399,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 			dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
 	}
 
-	/* XXX TODO: Try to get fifomerge working. The problem is that it
-	 * affects both managers, not individually but at the same time. This
-	 * means the change has to be well synchronized. I guess the proper way
-	 * is to have a two step process for fifo merge:
-	 *        fifomerge enable:
-	 *             1. disable other planes, leaving one plane enabled
-	 *             2. wait until the planes are disabled on HW
-	 *             3. config merged fifo thresholds, enable fifomerge
-	 *        fifomerge disable:
-	 *             1. config unmerged fifo thresholds, disable fifomerge
-	 *             2. wait until fifo changes are in HW
-	 *             3. enable planes
-	 */
-	use_fifomerge = false;
-
 	/* Configure overlay fifos */
 	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
 		struct omap_dss_device *dssdev;
@@ -1436,8 +1414,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 		dssdev = ovl->manager->device;
 
 		size = dispc_ovl_get_fifo_size(ovl->id);
-		if (use_fifomerge)
-			size *= 3;
 
 		burst_size = dispc_ovl_get_burst_size(ovl->id);
 

From b952b553d23912b0b4a496b3e695db5e60c7a99a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 31 Oct 2011 13:47:30 +0200
Subject: [PATCH 017/108] OMAPDSS: remove L4_EXAMPLE code

Some old example code has been left lying around. Remove the example
code.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss.h     |  3 ---
 drivers/video/omap2/dss/overlay.c | 36 -------------------------------
 2 files changed, 39 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 3310f10dc161..7d2b6dd18e17 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -192,9 +192,6 @@ void dss_init_overlays(struct platform_device *pdev);
 void dss_uninit_overlays(struct platform_device *pdev);
 int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev);
 void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
-#ifdef L4_EXAMPLE
-void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr);
-#endif
 void dss_recheck_connections(struct omap_dss_device *dssdev, bool force);
 
 /* DSS */
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index ab8e40e48759..d15b826bf37f 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -641,15 +641,6 @@ void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
 	mgr->overlays = dispc_overlays;
 }
 
-#ifdef L4_EXAMPLE
-static struct omap_overlay *l4_overlays[1];
-void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr)
-{
-	mgr->num_overlays = 1;
-	mgr->overlays = l4_overlays;
-}
-#endif
-
 void dss_init_overlays(struct platform_device *pdev)
 {
 	int i, r;
@@ -716,33 +707,6 @@ void dss_init_overlays(struct platform_device *pdev)
 
 		dispc_overlays[i] = ovl;
 	}
-
-#ifdef L4_EXAMPLE
-	{
-		struct omap_overlay *ovl;
-		ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
-
-		BUG_ON(ovl == NULL);
-
-		ovl->name = "l4";
-		ovl->supported_modes = OMAP_DSS_COLOR_RGB24U;
-
-		ovl->set_manager = &omap_dss_set_manager;
-		ovl->unset_manager = &omap_dss_unset_manager;
-		ovl->set_overlay_info = &dss_ovl_set_overlay_info;
-		ovl->get_overlay_info = &dss_ovl_get_overlay_info;
-
-		omap_dss_add_overlay(ovl);
-
-		r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
-				&pdev->dev.kobj, "overlayl4");
-
-		if (r)
-			DSSERR("failed to create sysfs file\n");
-
-		l4_overlays[0] = ovl;
-	}
-#endif
 }
 
 /* connect overlays to the new device, if not already connected. if force

From f427984e896fde6ae03056cf1f8ac5d4a99275d4 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 28 Oct 2011 15:26:26 +0300
Subject: [PATCH 018/108] OMAPDSS: DISPC: make dispc_ovl_set_channel_out()
 public

Make dispc_ovl_set_channel_out() public so that later patches can handle
changing overlay's manager.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 3 +--
 drivers/video/omap2/dss/dss.h   | 2 ++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 5bbd838a657a..5130f88516a0 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -875,8 +875,7 @@ static void dispc_ovl_set_color_mode(enum omap_plane plane,
 	REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), m, 4, 1);
 }
 
-static void dispc_ovl_set_channel_out(enum omap_plane plane,
-		enum omap_channel channel)
+void dispc_ovl_set_channel_out(enum omap_plane plane, enum omap_channel channel)
 {
 	int shift;
 	u32 val;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 7d2b6dd18e17..f899f0f6573e 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -402,6 +402,8 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 		bool ilace, enum omap_channel channel, bool replication,
 		u32 fifo_low, u32 fifo_high);
 int dispc_ovl_enable(enum omap_plane plane, bool enable);
+void dispc_ovl_set_channel_out(enum omap_plane plane,
+		enum omap_channel channel);
 
 
 void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable);

From 6f04e1bfc36c5865dc5679f85e25b6613be86298 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 31 Oct 2011 08:58:52 +0200
Subject: [PATCH 019/108] OMAPDSS: DISPC: make dispc_ovl_set_fifo_threshold()
 public

Make dispc_ovl_set_fifo_threshold() public so that later patches can
handle overlay fifo configuration.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 3 +--
 drivers/video/omap2/dss/dss.h   | 1 +
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 5130f88516a0..82497317a4b3 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1056,8 +1056,7 @@ u32 dispc_ovl_get_fifo_size(enum omap_plane plane)
 	return dispc.fifo_size[plane];
 }
 
-static void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low,
-		u32 high)
+void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high)
 {
 	u8 hi_start, hi_end, lo_start, lo_end;
 	u32 unit;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index f899f0f6573e..313a7cafdc9b 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -396,6 +396,7 @@ int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
 		struct dispc_clock_info *cinfo);
 
 
+void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
 u32 dispc_ovl_get_fifo_size(enum omap_plane plane);
 u32 dispc_ovl_get_burst_size(enum omap_plane plane);
 int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,

From 8760db5406fb7b92f900d6c98eea198695476467 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 3 Nov 2011 16:17:37 +0200
Subject: [PATCH 020/108] OMAPDSS: remove partial update from the overlay
 manager

Partial update for manual update displays has never worked quite well:
* The HW has limitations on the update area, and the x and width need to
  be even.
* Showing a part of a scaled overlay causes artifacts.
* Makes the management of dispc very complex

Considering the above points and the fact that partial update is not
used anywhere, this and the following patches remove the partial update
support. This will greatly simplify the following re-write of the apply
mechanism to get proper locking and additional features like fifo-merge.

This patch removes the partial update from the manager.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c     |   2 -
 drivers/video/omap2/dss/dss.h     |   3 -
 drivers/video/omap2/dss/manager.c | 337 +-----------------------------
 drivers/video/omap2/dss/rfbi.c    |   1 -
 4 files changed, 8 insertions(+), 335 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 9bcb5c2511df..773a496a2d31 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4206,8 +4206,6 @@ int omap_dsi_prepare_update(struct omap_dss_device *dssdev,
 
 	dsi_perf_mark_setup(dsidev);
 
-	dss_setup_partial_planes(dssdev, x, y, w, h,
-			enlarge_update_area);
 	dispc_mgr_set_lcd_size(dssdev->manager->id, *w, *h);
 
 	return 0;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 313a7cafdc9b..7f6a612bb5b6 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -182,9 +182,6 @@ void default_get_overlay_fifo_thresholds(enum omap_plane plane,
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
-void dss_setup_partial_planes(struct omap_dss_device *dssdev,
-				u16 *x, u16 *y, u16 *w, u16 *h,
-				bool enlarge_update_area);
 void dss_start_update(struct omap_dss_device *dssdev);
 
 /* overlay */
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 1be5f47a2114..c616f850eaf8 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -530,13 +530,6 @@ struct manager_cache_data {
 
 	bool manual_update;
 	bool do_manual_update;
-
-	/* manual update region */
-	u16 x, y, w, h;
-
-	/* enlarge the update area if the update area contains scaled
-	 * overlays */
-	bool enlarge_update_area;
 };
 
 static struct {
@@ -762,65 +755,11 @@ static int overlay_enabled(struct omap_overlay *ovl)
 	return ovl->info.enabled && ovl->manager && ovl->manager->device;
 }
 
-/* Is rect1 a subset of rect2? */
-static bool rectangle_subset(int x1, int y1, int w1, int h1,
-		int x2, int y2, int w2, int h2)
-{
-	if (x1 < x2 || y1 < y2)
-		return false;
-
-	if (x1 + w1 > x2 + w2)
-		return false;
-
-	if (y1 + h1 > y2 + h2)
-		return false;
-
-	return true;
-}
-
-/* Do rect1 and rect2 overlap? */
-static bool rectangle_intersects(int x1, int y1, int w1, int h1,
-		int x2, int y2, int w2, int h2)
-{
-	if (x1 >= x2 + w2)
-		return false;
-
-	if (x2 >= x1 + w1)
-		return false;
-
-	if (y1 >= y2 + h2)
-		return false;
-
-	if (y2 >= y1 + h1)
-		return false;
-
-	return true;
-}
-
-static bool dispc_is_overlay_scaled(struct overlay_cache_data *oc)
-{
-	struct omap_overlay_info *oi = &oc->info;
-
-	if (oi->out_width != 0 && oi->width != oi->out_width)
-		return true;
-
-	if (oi->out_height != 0 && oi->height != oi->out_height)
-		return true;
-
-	return false;
-}
-
 static int configure_overlay(enum omap_plane plane)
 {
 	struct overlay_cache_data *c;
-	struct manager_cache_data *mc;
-	struct omap_overlay_info *oi, new_oi;
-	struct omap_overlay_manager_info *mi;
-	u16 outw, outh;
-	u16 x, y, w, h;
-	u32 paddr;
+	struct omap_overlay_info *oi;
 	int r;
-	u16 orig_w, orig_h, orig_outw, orig_outh;
 
 	DSSDBGF("%d", plane);
 
@@ -832,120 +771,7 @@ static int configure_overlay(enum omap_plane plane)
 		return 0;
 	}
 
-	mc = &dss_cache.manager_cache[c->channel];
-	mi = &mc->info;
-
-	x = oi->pos_x;
-	y = oi->pos_y;
-	w = oi->width;
-	h = oi->height;
-	outw = oi->out_width == 0 ? oi->width : oi->out_width;
-	outh = oi->out_height == 0 ? oi->height : oi->out_height;
-	paddr = oi->paddr;
-
-	orig_w = w;
-	orig_h = h;
-	orig_outw = outw;
-	orig_outh = outh;
-
-	if (mc->manual_update && mc->do_manual_update) {
-		unsigned bpp;
-		unsigned scale_x_m = w, scale_x_d = outw;
-		unsigned scale_y_m = h, scale_y_d = outh;
-
-		/* If the overlay is outside the update region, disable it */
-		if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h,
-					x, y, outw, outh)) {
-			dispc_ovl_enable(plane, 0);
-			return 0;
-		}
-
-		switch (oi->color_mode) {
-		case OMAP_DSS_COLOR_NV12:
-			bpp = 8;
-			break;
-		case OMAP_DSS_COLOR_RGB16:
-		case OMAP_DSS_COLOR_ARGB16:
-		case OMAP_DSS_COLOR_YUV2:
-		case OMAP_DSS_COLOR_UYVY:
-		case OMAP_DSS_COLOR_RGBA16:
-		case OMAP_DSS_COLOR_RGBX16:
-		case OMAP_DSS_COLOR_ARGB16_1555:
-		case OMAP_DSS_COLOR_XRGB16_1555:
-			bpp = 16;
-			break;
-
-		case OMAP_DSS_COLOR_RGB24P:
-			bpp = 24;
-			break;
-
-		case OMAP_DSS_COLOR_RGB24U:
-		case OMAP_DSS_COLOR_ARGB32:
-		case OMAP_DSS_COLOR_RGBA32:
-		case OMAP_DSS_COLOR_RGBX32:
-			bpp = 32;
-			break;
-
-		default:
-			BUG();
-		}
-
-		if (mc->x > oi->pos_x) {
-			x = 0;
-			outw -= (mc->x - oi->pos_x);
-			paddr += (mc->x - oi->pos_x) *
-				scale_x_m / scale_x_d * bpp / 8;
-		} else {
-			x = oi->pos_x - mc->x;
-		}
-
-		if (mc->y > oi->pos_y) {
-			y = 0;
-			outh -= (mc->y - oi->pos_y);
-			paddr += (mc->y - oi->pos_y) *
-				scale_y_m / scale_y_d *
-				oi->screen_width * bpp / 8;
-		} else {
-			y = oi->pos_y - mc->y;
-		}
-
-		if (mc->w < (x + outw))
-			outw -= (x + outw) - (mc->w);
-
-		if (mc->h < (y + outh))
-			outh -= (y + outh) - (mc->h);
-
-		w = w * outw / orig_outw;
-		h = h * outh / orig_outh;
-
-		/* YUV mode overlay's input width has to be even and the
-		 * algorithm above may adjust the width to be odd.
-		 *
-		 * Here we adjust the width if needed, preferring to increase
-		 * the width if the original width was bigger.
-		 */
-		if ((w & 1) &&
-				(oi->color_mode == OMAP_DSS_COLOR_YUV2 ||
-				 oi->color_mode == OMAP_DSS_COLOR_UYVY)) {
-			if (orig_w > w)
-				w += 1;
-			else
-				w -= 1;
-		}
-	}
-
-	new_oi = *oi;
-
-	/* update new_oi members which could have been possibly updated */
-	new_oi.pos_x = x;
-	new_oi.pos_y = y;
-	new_oi.width = w;
-	new_oi.height = h;
-	new_oi.out_width = outw;
-	new_oi.out_height = outh;
-	new_oi.paddr = paddr;
-
-	r = dispc_ovl_setup(plane, &new_oi, c->ilace, c->channel,
+	r = dispc_ovl_setup(plane, oi, c->ilace, c->channel,
 		c->replication, c->fifo_low, c->fifo_high);
 	if (r) {
 		/* this shouldn't happen */
@@ -1070,159 +896,6 @@ static int configure_dispc(void)
 	return r;
 }
 
-/* Make the coordinates even. There are some strange problems with OMAP and
- * partial DSI update when the update widths are odd. */
-static void make_even(u16 *x, u16 *w)
-{
-	u16 x1, x2;
-
-	x1 = *x;
-	x2 = *x + *w;
-
-	x1 &= ~1;
-	x2 = ALIGN(x2, 2);
-
-	*x = x1;
-	*w = x2 - x1;
-}
-
-/* Configure dispc for partial update. Return possibly modified update
- * area */
-void dss_setup_partial_planes(struct omap_dss_device *dssdev,
-		u16 *xi, u16 *yi, u16 *wi, u16 *hi, bool enlarge_update_area)
-{
-	struct overlay_cache_data *oc;
-	struct manager_cache_data *mc;
-	struct omap_overlay_info *oi;
-	const int num_ovls = dss_feat_get_num_ovls();
-	struct omap_overlay_manager *mgr;
-	int i;
-	u16 x, y, w, h;
-	unsigned long flags;
-	bool area_changed;
-
-	x = *xi;
-	y = *yi;
-	w = *wi;
-	h = *hi;
-
-	DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n",
-		*xi, *yi, *wi, *hi);
-
-	mgr = dssdev->manager;
-
-	if (!mgr) {
-		DSSDBG("no manager\n");
-		return;
-	}
-
-	make_even(&x, &w);
-
-	spin_lock_irqsave(&dss_cache.lock, flags);
-
-	/*
-	 * Execute the outer loop until the inner loop has completed
-	 * once without increasing the update area. This will ensure that
-	 * all scaled overlays end up completely within the update area.
-	 */
-	do {
-		area_changed = false;
-
-		/* We need to show the whole overlay if it is scaled. So look
-		 * for those, and make the update area larger if found.
-		 * Also mark the overlay cache dirty */
-		for (i = 0; i < num_ovls; ++i) {
-			unsigned x1, y1, x2, y2;
-			unsigned outw, outh;
-
-			oc = &dss_cache.overlay_cache[i];
-			oi = &oc->info;
-
-			if (oc->channel != mgr->id)
-				continue;
-
-			oc->dirty = true;
-
-			if (!enlarge_update_area)
-				continue;
-
-			if (!oc->enabled)
-				continue;
-
-			if (!dispc_is_overlay_scaled(oc))
-				continue;
-
-			outw = oi->out_width == 0 ?
-				oi->width : oi->out_width;
-			outh = oi->out_height == 0 ?
-				oi->height : oi->out_height;
-
-			/* is the overlay outside the update region? */
-			if (!rectangle_intersects(x, y, w, h,
-						oi->pos_x, oi->pos_y,
-						outw, outh))
-				continue;
-
-			/* if the overlay totally inside the update region? */
-			if (rectangle_subset(oi->pos_x, oi->pos_y, outw, outh,
-						x, y, w, h))
-				continue;
-
-			if (x > oi->pos_x)
-				x1 = oi->pos_x;
-			else
-				x1 = x;
-
-			if (y > oi->pos_y)
-				y1 = oi->pos_y;
-			else
-				y1 = y;
-
-			if ((x + w) < (oi->pos_x + outw))
-				x2 = oi->pos_x + outw;
-			else
-				x2 = x + w;
-
-			if ((y + h) < (oi->pos_y + outh))
-				y2 = oi->pos_y + outh;
-			else
-				y2 = y + h;
-
-			x = x1;
-			y = y1;
-			w = x2 - x1;
-			h = y2 - y1;
-
-			make_even(&x, &w);
-
-			DSSDBG("changing upd area due to ovl(%d) "
-			       "scaling %d,%d %dx%d\n",
-				i, x, y, w, h);
-
-			area_changed = true;
-		}
-	} while (area_changed);
-
-	mc = &dss_cache.manager_cache[mgr->id];
-	mc->do_manual_update = true;
-	mc->enlarge_update_area = enlarge_update_area;
-	mc->x = x;
-	mc->y = y;
-	mc->w = w;
-	mc->h = h;
-
-	configure_dispc();
-
-	mc->do_manual_update = false;
-
-	spin_unlock_irqrestore(&dss_cache.lock, flags);
-
-	*xi = x;
-	*yi = y;
-	*wi = w;
-	*hi = h;
-}
-
 void dss_start_update(struct omap_dss_device *dssdev)
 {
 	struct manager_cache_data *mc;
@@ -1234,6 +907,12 @@ void dss_start_update(struct omap_dss_device *dssdev)
 
 	mgr = dssdev->manager;
 
+	mc = &dss_cache.manager_cache[mgr->id];
+
+	mc->do_manual_update = true;
+	configure_dispc();
+	mc->do_manual_update = false;
+
 	for (i = 0; i < num_ovls; ++i) {
 		oc = &dss_cache.overlay_cache[i];
 		if (oc->channel != mgr->id)
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 1130c608a561..814bb9500dca 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -784,7 +784,6 @@ int omap_rfbi_prepare_update(struct omap_dss_device *dssdev,
 	if (*w == 0 || *h == 0)
 		return -EINVAL;
 
-	dss_setup_partial_planes(dssdev, x, y, w, h, true);
 	dispc_mgr_set_lcd_size(dssdev->manager->id, *w, *h);
 
 	return 0;

From 5476e74a03f4be972708162050c8ac7fe150449f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 3 Nov 2011 16:34:20 +0200
Subject: [PATCH 021/108] OMAPDSS: remove partial update from DSI

Partial update for manual update displays has never worked quite well:
* The HW has limitations on the update area, and the x and width need to
  be even.
* Showing a part of a scaled overlay causes artifacts.
* Makes the management of dispc very complex

Considering the above points and the fact that partial update is not
used anywhere, this and the following patches remove the partial update
support. This will greatly simplify the following re-write of the apply
mechanism to get proper locking and additional features like fifo-merge.

This patch removes the partial update from the dsi.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-taal.c | 16 ++---
 drivers/video/omap2/dss/dsi.c             | 81 ++++++-----------------
 include/video/omapdss.h                   |  7 +-
 3 files changed, 26 insertions(+), 78 deletions(-)

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 80c3f6ab1a94..0aa6c5d5a695 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -1394,12 +1394,8 @@ static irqreturn_t taal_te_isr(int irq, void *data)
 	if (old) {
 		cancel_delayed_work(&td->te_timeout_work);
 
-		r = omap_dsi_update(dssdev, td->channel,
-				td->update_region.x,
-				td->update_region.y,
-				td->update_region.w,
-				td->update_region.h,
-				taal_framedone_cb, dssdev);
+		r = omap_dsi_update(dssdev, td->channel, taal_framedone_cb,
+				dssdev);
 		if (r)
 			goto err;
 	}
@@ -1444,10 +1440,6 @@ static int taal_update(struct omap_dss_device *dssdev,
 		goto err;
 	}
 
-	r = omap_dsi_prepare_update(dssdev, &x, &y, &w, &h, true);
-	if (r)
-		goto err;
-
 	r = taal_set_update_window(td, x, y, w, h);
 	if (r)
 		goto err;
@@ -1462,8 +1454,8 @@ static int taal_update(struct omap_dss_device *dssdev,
 				msecs_to_jiffies(250));
 		atomic_set(&td->do_update, 1);
 	} else {
-		r = omap_dsi_update(dssdev, td->channel, x, y, w, h,
-				taal_framedone_cb, dssdev);
+		r = omap_dsi_update(dssdev, td->channel, taal_framedone_cb,
+				dssdev);
 		if (r)
 			goto err;
 	}
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 773a496a2d31..6fc82a4a14c0 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -238,11 +238,6 @@ enum dsi_vc_source {
 	DSI_VC_SOURCE_VP,
 };
 
-struct dsi_update_region {
-	u16 x, y, w, h;
-	struct omap_dss_device *device;
-};
-
 struct dsi_irq_stats {
 	unsigned long last_reset;
 	unsigned irq_count;
@@ -292,7 +287,9 @@ struct dsi_data {
 	struct dsi_isr_tables isr_tables_copy;
 
 	int update_channel;
-	struct dsi_update_region update_region;
+#ifdef DEBUG
+	unsigned update_bytes;
+#endif
 
 	bool te_enabled;
 	bool ulps_enabled;
@@ -474,7 +471,6 @@ static void dsi_perf_mark_start(struct platform_device *dsidev)
 static void dsi_perf_show(struct platform_device *dsidev, const char *name)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
-	struct omap_dss_device *dssdev = dsi->update_region.device;
 	ktime_t t, setup_time, trans_time;
 	u32 total_bytes;
 	u32 setup_us, trans_us, total_us;
@@ -496,9 +492,7 @@ static void dsi_perf_show(struct platform_device *dsidev, const char *name)
 
 	total_us = setup_us + trans_us;
 
-	total_bytes = dsi->update_region.w *
-		dsi->update_region.h *
-		dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt) / 8;
+	total_bytes = dsi->update_bytes;
 
 	printk(KERN_INFO "DSI(%s): %u us + %u us = %u us (%uHz), "
 			"%u bytes, %u kbytes/sec\n",
@@ -4040,7 +4034,7 @@ void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel)
 EXPORT_SYMBOL(dsi_video_mode_disable);
 
 static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
-		u16 x, u16 y, u16 w, u16 h)
+		u16 w, u16 h)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
@@ -4055,8 +4049,7 @@ static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
 	const unsigned channel = dsi->update_channel;
 	const unsigned line_buf_size = dsi_get_line_buf_size(dsidev);
 
-	DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n",
-			x, y, w, h);
+	DSSDBG("dsi_update_screen_dispc(%dx%d)\n", w, h);
 
 	dsi_vc_config_source(dsidev, channel, DSI_VC_SOURCE_VP);
 
@@ -4180,64 +4173,27 @@ static void dsi_framedone_irq_callback(void *data, u32 mask)
 #endif
 }
 
-int omap_dsi_prepare_update(struct omap_dss_device *dssdev,
-				    u16 *x, u16 *y, u16 *w, u16 *h,
-				    bool enlarge_update_area)
-{
-	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
-	u16 dw, dh;
-
-	dssdev->driver->get_resolution(dssdev, &dw, &dh);
-
-	if  (*x > dw || *y > dh)
-		return -EINVAL;
-
-	if (*x + *w > dw)
-		return -EINVAL;
-
-	if (*y + *h > dh)
-		return -EINVAL;
-
-	if (*w == 1)
-		return -EINVAL;
-
-	if (*w == 0 || *h == 0)
-		return -EINVAL;
-
-	dsi_perf_mark_setup(dsidev);
-
-	dispc_mgr_set_lcd_size(dssdev->manager->id, *w, *h);
-
-	return 0;
-}
-EXPORT_SYMBOL(omap_dsi_prepare_update);
-
-int omap_dsi_update(struct omap_dss_device *dssdev,
-		int channel,
-		u16 x, u16 y, u16 w, u16 h,
+int omap_dsi_update(struct omap_dss_device *dssdev, int channel,
 		void (*callback)(int, void *), void *data)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
+	u16 dw, dh;
+
+	dsi_perf_mark_setup(dsidev);
 
 	dsi->update_channel = channel;
 
-	/* OMAP DSS cannot send updates of odd widths.
-	 * omap_dsi_prepare_update() makes the widths even, but add a BUG_ON
-	 * here to make sure we catch erroneous updates. Otherwise we'll only
-	 * see rather obscure HW error happening, as DSS halts. */
-	BUG_ON(x % 2 == 1);
-
 	dsi->framedone_callback = callback;
 	dsi->framedone_data = data;
 
-	dsi->update_region.x = x;
-	dsi->update_region.y = y;
-	dsi->update_region.w = w;
-	dsi->update_region.h = h;
-	dsi->update_region.device = dssdev;
+	dssdev->driver->get_resolution(dssdev, &dw, &dh);
 
-	dsi_update_screen_dispc(dssdev, x, y, w, h);
+#ifdef DEBUG
+	dsi->update_bytes = dw * dh *
+		dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt) / 8;
+#endif
+	dsi_update_screen_dispc(dssdev, dw, dh);
 
 	return 0;
 }
@@ -4250,6 +4206,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 	int r;
 
 	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) {
+		u16 dw, dh;
 		u32 irq;
 		struct omap_video_timings timings = {
 			.hsw		= 1,
@@ -4260,6 +4217,10 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev)
 			.vbp		= 0,
 		};
 
+		dssdev->driver->get_resolution(dssdev, &dw, &dh);
+		timings.x_res = dw;
+		timings.y_res = dh;
+
 		irq = dssdev->manager->id == OMAP_DSS_CHANNEL_LCD ?
 			DISPC_IRQ_FRAMEDONE : DISPC_IRQ_FRAMEDONE2;
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 378c7ed6760b..60bf4260253b 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -662,12 +662,7 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
 		bool enable);
 int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable);
 
-int omap_dsi_prepare_update(struct omap_dss_device *dssdev,
-				    u16 *x, u16 *y, u16 *w, u16 *h,
-				    bool enlarge_update_area);
-int omap_dsi_update(struct omap_dss_device *dssdev,
-		int channel,
-		u16 x, u16 y, u16 w, u16 h,
+int omap_dsi_update(struct omap_dss_device *dssdev, int channel,
 		void (*callback)(int, void *), void *data);
 int omap_dsi_request_vc(struct omap_dss_device *dssdev, int *channel);
 int omap_dsi_set_vc_id(struct omap_dss_device *dssdev, int channel, int vc_id);

From 6331709bcafe578f63c837a8d726ce8ffdfe0895 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 3 Nov 2011 16:45:07 +0200
Subject: [PATCH 022/108] OMAPDSS: remove partial update from panel-taal

Partial update for manual update displays has never worked quite well:
* The HW has limitations on the update area, and the x and width need to
  be even.
* Showing a part of a scaled overlay causes artifacts.
* Makes the management of dispc very complex

Considering the above points and the fact that partial update is not
used anywhere, this and the following patches remove the partial update
support. This will greatly simplify the following re-write of the apply
mechanism to get proper locking and additional features like fifo-merge.

This patch removes the partial update from the panel-taal.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-taal.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index 0aa6c5d5a695..dd64bd13f4f8 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -198,12 +198,6 @@ struct taal_data {
 	bool te_enabled;
 
 	atomic_t do_update;
-	struct {
-		u16 x;
-		u16 y;
-		u16 w;
-		u16 h;
-	} update_region;
 	int channel;
 
 	struct delayed_work te_timeout_work;
@@ -1440,16 +1434,14 @@ static int taal_update(struct omap_dss_device *dssdev,
 		goto err;
 	}
 
-	r = taal_set_update_window(td, x, y, w, h);
+	/* XXX no need to send this every frame, but dsi break if not done */
+	r = taal_set_update_window(td, 0, 0,
+			td->panel_config->timings.x_res,
+			td->panel_config->timings.y_res);
 	if (r)
 		goto err;
 
 	if (td->te_enabled && panel_data->use_ext_te) {
-		td->update_region.x = x;
-		td->update_region.y = y;
-		td->update_region.w = w;
-		td->update_region.h = h;
-		barrier();
 		schedule_delayed_work(&td->te_timeout_work,
 				msecs_to_jiffies(250));
 		atomic_set(&td->do_update, 1);

From 1cb0017813e82c740ef7b60bdaa0aa74eaab6a76 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 18 Nov 2011 11:14:01 +0200
Subject: [PATCH 023/108] OMAPDSS: pass ovl manager to dss_start_update

dss_start_update() takes currently the dss device as a parameter. Change
the parameter to ovl manager, as that is what the dss_start_update()
actually needs. Change the name of the function to
dss_mgr_start_update() to reflect the change.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c     | 2 +-
 drivers/video/omap2/dss/dss.h     | 2 +-
 drivers/video/omap2/dss/manager.c | 7 ++-----
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 6fc82a4a14c0..101e3b8e178b 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4097,7 +4097,7 @@ static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
 		msecs_to_jiffies(250));
 	BUG_ON(r == 0);
 
-	dss_start_update(dssdev);
+	dss_mgr_start_update(dssdev->manager);
 
 	if (dsi->te_enabled) {
 		/* disable LP_RX_TO, so that we can receive TE.  Time to wait
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 7f6a612bb5b6..39d48371c0ce 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -182,7 +182,7 @@ void default_get_overlay_fifo_thresholds(enum omap_plane plane,
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
-void dss_start_update(struct omap_dss_device *dssdev);
+void dss_mgr_start_update(struct omap_overlay_manager *mgr);
 
 /* overlay */
 void dss_init_overlays(struct platform_device *pdev);
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index c616f850eaf8..268704bc6c39 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -896,17 +896,14 @@ static int configure_dispc(void)
 	return r;
 }
 
-void dss_start_update(struct omap_dss_device *dssdev)
+void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	struct manager_cache_data *mc;
 	struct overlay_cache_data *oc;
 	const int num_ovls = dss_feat_get_num_ovls();
 	const int num_mgrs = dss_feat_get_num_mgrs();
-	struct omap_overlay_manager *mgr;
 	int i;
 
-	mgr = dssdev->manager;
-
 	mc = &dss_cache.manager_cache[mgr->id];
 
 	mc->do_manual_update = true;
@@ -929,7 +926,7 @@ void dss_start_update(struct omap_dss_device *dssdev)
 		mc->shadow_dirty = false;
 	}
 
-	dssdev->manager->enable(dssdev->manager);
+	mgr->enable(mgr);
 }
 
 static void dss_apply_irq_handler(void *data, u32 mask)

From cf0736681e569b0d3803d68d4f6d00f544f3426a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 3 Nov 2011 16:08:27 +0200
Subject: [PATCH 024/108] OMAPDSS: DISPC: handle 0 out_width/out_height in
 ovl_setup()

Overlay out_width/height are set to 0 when scaling is not used by the
users of omapdss. Currently ovl_setup() expects the caller of
ovl_setup() to convert those zero values to width or height.

This patch makes ovl_setup() accept zero values for out_width/height,
making calling ovl_setup() a bit simpler as the overlay_info can be
just passed to this function without modifications.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 82497317a4b3..f054972a5f57 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1781,6 +1781,7 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	s32 pix_inc;
 	u16 frame_height = oi->height;
 	unsigned int field_offset = 0;
+	u16 outw, outh;
 
 	DSSDBG("dispc_ovl_setup %d, pa %x, pa_uv %x, sw %d, %d,%d, %dx%d -> "
 		"%dx%d, cmode %x, rot %d, mir %d, ilace %d chan %d repl %d "
@@ -1792,25 +1793,28 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	if (oi->paddr == 0)
 		return -EINVAL;
 
-	if (ilace && oi->height == oi->out_height)
+	outw = oi->out_width == 0 ? oi->width : oi->out_width;
+	outh = oi->out_height == 0 ? oi->height : oi->out_height;
+
+	if (ilace && oi->height == outh)
 		fieldmode = 1;
 
 	if (ilace) {
 		if (fieldmode)
 			oi->height /= 2;
 		oi->pos_y /= 2;
-		oi->out_height /= 2;
+		outh /= 2;
 
 		DSSDBG("adjusting for ilace: height %d, pos_y %d, "
 				"out_height %d\n",
-				oi->height, oi->pos_y, oi->out_height);
+				oi->height, oi->pos_y, outh);
 	}
 
 	if (!dss_feat_color_mode_supported(plane, oi->color_mode))
 		return -EINVAL;
 
 	r = dispc_ovl_calc_scaling(plane, channel, oi->width, oi->height,
-			oi->out_width, oi->out_height, oi->color_mode,
+			outw, outh, oi->color_mode,
 			&five_taps);
 	if (r)
 		return r;
@@ -1828,10 +1832,10 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 		 * so the integer part must be added to the base address of the
 		 * bottom field.
 		 */
-		if (!oi->height || oi->height == oi->out_height)
+		if (!oi->height || oi->height == outh)
 			field_offset = 0;
 		else
-			field_offset = oi->height / oi->out_height / 2;
+			field_offset = oi->height / outh / 2;
 	}
 
 	/* Fields are independent but interleaved in memory. */
@@ -1867,7 +1871,7 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	dispc_ovl_set_pix_inc(plane, pix_inc);
 
 	DSSDBG("%d,%d %dx%d -> %dx%d\n", oi->pos_x, oi->pos_y, oi->width,
-			oi->height, oi->out_width, oi->out_height);
+			oi->height, outw, outh);
 
 	dispc_ovl_set_pos(plane, oi->pos_x, oi->pos_y);
 
@@ -1875,10 +1879,10 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 
 	if (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) {
 		dispc_ovl_set_scaling(plane, oi->width, oi->height,
-				   oi->out_width, oi->out_height,
+				   outw, outh,
 				   ilace, five_taps, fieldmode,
 				   oi->color_mode, oi->rotation);
-		dispc_ovl_set_vid_size(plane, oi->out_width, oi->out_height);
+		dispc_ovl_set_vid_size(plane, outw, outh);
 		dispc_ovl_set_vid_color_conv(plane, cconv);
 	}
 

From 3ba2a1c01546a4980e7b7742445560ae4afd1fc1 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 3 Nov 2011 16:52:06 +0200
Subject: [PATCH 025/108] OMAPDSS: handle ilace/replication when configuring
 overlay

Move the configuration of interlace and replication from
omap_dss_mgr_apply() to configure_overlay(). This removes the need to
store the values into the cache data.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/manager.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 268704bc6c39..d8d0d11d95d9 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -510,8 +510,6 @@ struct overlay_cache_data {
 	struct omap_overlay_info info;
 
 	enum omap_channel channel;
-	bool replication;
-	bool ilace;
 
 	u32 fifo_low;
 	u32 fifo_high;
@@ -757,8 +755,10 @@ static int overlay_enabled(struct omap_overlay *ovl)
 
 static int configure_overlay(enum omap_plane plane)
 {
+	struct omap_overlay *ovl;
 	struct overlay_cache_data *c;
 	struct omap_overlay_info *oi;
+	bool ilace, replication;
 	int r;
 
 	DSSDBGF("%d", plane);
@@ -771,8 +771,14 @@ static int configure_overlay(enum omap_plane plane)
 		return 0;
 	}
 
-	r = dispc_ovl_setup(plane, oi, c->ilace, c->channel,
-		c->replication, c->fifo_low, c->fifo_high);
+	ovl = omap_dss_get_overlay(plane);
+
+	replication = dss_use_replication(ovl->manager->device, oi->color_mode);
+
+	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
+
+	r = dispc_ovl_setup(plane, oi, ilace, c->channel,
+		replication, c->fifo_low, c->fifo_high);
 	if (r) {
 		/* this shouldn't happen */
 		DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);
@@ -1038,11 +1044,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 		oc->dirty = true;
 		oc->info = ovl->info;
 
-		oc->replication =
-			dss_use_replication(dssdev, ovl->info.color_mode);
-
-		oc->ilace = dssdev->type == OMAP_DISPLAY_TYPE_VENC;
-
 		oc->channel = ovl->manager->id;
 
 		oc->enabled = true;

From f38545da53d98055d8b2f58fe156c86626f3427e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 3 Nov 2011 17:00:07 +0200
Subject: [PATCH 026/108] OMAPDSS: separate FIFO threshold setup from ovl_setup

Overlay FIFO thresholds are configured with ovl_setup, with all the
other overlay attributes. This patch separates FIFO threshold setup so
that we can later configure FIFO thresholds only when needed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c   | 10 ++++------
 drivers/video/omap2/dss/dss.h     |  3 +--
 drivers/video/omap2/dss/manager.c |  5 +++--
 3 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index f054972a5f57..094bb6e4179e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1769,8 +1769,7 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 }
 
 int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
-		bool ilace, enum omap_channel channel, bool replication,
-		u32 fifo_low, u32 fifo_high)
+		bool ilace, enum omap_channel channel, bool replication)
 {
 	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
 	bool five_taps = false;
@@ -1784,11 +1783,11 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	u16 outw, outh;
 
 	DSSDBG("dispc_ovl_setup %d, pa %x, pa_uv %x, sw %d, %d,%d, %dx%d -> "
-		"%dx%d, cmode %x, rot %d, mir %d, ilace %d chan %d repl %d "
-		"fifo_low %d fifo high %d\n", plane, oi->paddr, oi->p_uv_addr,
+		"%dx%d, cmode %x, rot %d, mir %d, ilace %d chan %d repl %d\n",
+		plane, oi->paddr, oi->p_uv_addr,
 		oi->screen_width, oi->pos_x, oi->pos_y, oi->width, oi->height,
 		oi->out_width, oi->out_height, oi->color_mode, oi->rotation,
-		oi->mirror, ilace, channel, replication, fifo_low, fifo_high);
+		oi->mirror, ilace, channel, replication);
 
 	if (oi->paddr == 0)
 		return -EINVAL;
@@ -1896,7 +1895,6 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	dispc_ovl_set_channel_out(plane, channel);
 
 	dispc_ovl_enable_replication(plane, replication);
-	dispc_ovl_set_fifo_threshold(plane, fifo_low, fifo_high);
 
 	return 0;
 }
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 39d48371c0ce..d56e916ca129 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -397,8 +397,7 @@ void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
 u32 dispc_ovl_get_fifo_size(enum omap_plane plane);
 u32 dispc_ovl_get_burst_size(enum omap_plane plane);
 int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
-		bool ilace, enum omap_channel channel, bool replication,
-		u32 fifo_low, u32 fifo_high);
+		bool ilace, enum omap_channel channel, bool replication);
 int dispc_ovl_enable(enum omap_plane plane, bool enable);
 void dispc_ovl_set_channel_out(enum omap_plane plane,
 		enum omap_channel channel);
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index d8d0d11d95d9..31637ba58f5f 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -777,8 +777,7 @@ static int configure_overlay(enum omap_plane plane)
 
 	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
 
-	r = dispc_ovl_setup(plane, oi, ilace, c->channel,
-		replication, c->fifo_low, c->fifo_high);
+	r = dispc_ovl_setup(plane, oi, ilace, c->channel, replication);
 	if (r) {
 		/* this shouldn't happen */
 		DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);
@@ -786,6 +785,8 @@ static int configure_overlay(enum omap_plane plane)
 		return r;
 	}
 
+	dispc_ovl_set_fifo_threshold(plane, c->fifo_low, c->fifo_high);
+
 	dispc_ovl_enable(plane, 1);
 
 	return 0;

From 2cc5d1af5ad0a130fa5812f99bca18e0cdadbd36 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 3 Nov 2011 17:03:44 +0200
Subject: [PATCH 027/108] OMAPDSS: separate overlay channel from ovl_setup

Overlay channel is configured with ovl_setup, with all the other overlay
attriutes. This patch separates overlay channel setup so that we can
later configure the channel only when needed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c   | 40 ++++++++++++++++++++++++++++---
 drivers/video/omap2/dss/dss.h     |  2 +-
 drivers/video/omap2/dss/manager.c |  4 +++-
 3 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 094bb6e4179e..b66cf154f64e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -922,6 +922,39 @@ void dispc_ovl_set_channel_out(enum omap_plane plane, enum omap_channel channel)
 	dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), val);
 }
 
+static enum omap_channel dispc_ovl_get_channel_out(enum omap_plane plane)
+{
+	int shift;
+	u32 val;
+	enum omap_channel channel;
+
+	switch (plane) {
+	case OMAP_DSS_GFX:
+		shift = 8;
+		break;
+	case OMAP_DSS_VIDEO1:
+	case OMAP_DSS_VIDEO2:
+	case OMAP_DSS_VIDEO3:
+		shift = 16;
+		break;
+	default:
+		BUG();
+	}
+
+	val = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane));
+
+	if (dss_has_feature(FEAT_MGR_LCD2)) {
+		if (FLD_GET(val, 31, 30) == 0)
+			channel = FLD_GET(val, shift, shift);
+		else
+			channel = OMAP_DSS_CHANNEL_LCD2;
+	} else {
+		channel = FLD_GET(val, shift, shift);
+	}
+
+	return channel;
+}
+
 static void dispc_ovl_set_burst_size(enum omap_plane plane,
 		enum omap_burst_size burst_size)
 {
@@ -1769,7 +1802,7 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 }
 
 int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
-		bool ilace, enum omap_channel channel, bool replication)
+		bool ilace, bool replication)
 {
 	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
 	bool five_taps = false;
@@ -1781,6 +1814,9 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	u16 frame_height = oi->height;
 	unsigned int field_offset = 0;
 	u16 outw, outh;
+	enum omap_channel channel;
+
+	channel = dispc_ovl_get_channel_out(plane);
 
 	DSSDBG("dispc_ovl_setup %d, pa %x, pa_uv %x, sw %d, %d,%d, %dx%d -> "
 		"%dx%d, cmode %x, rot %d, mir %d, ilace %d chan %d repl %d\n",
@@ -1892,8 +1928,6 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 	dispc_ovl_set_pre_mult_alpha(plane, oi->pre_mult_alpha);
 	dispc_ovl_setup_global_alpha(plane, oi->global_alpha);
 
-	dispc_ovl_set_channel_out(plane, channel);
-
 	dispc_ovl_enable_replication(plane, replication);
 
 	return 0;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index d56e916ca129..11c72d15ead2 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -397,7 +397,7 @@ void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
 u32 dispc_ovl_get_fifo_size(enum omap_plane plane);
 u32 dispc_ovl_get_burst_size(enum omap_plane plane);
 int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
-		bool ilace, enum omap_channel channel, bool replication);
+		bool ilace, bool replication);
 int dispc_ovl_enable(enum omap_plane plane, bool enable);
 void dispc_ovl_set_channel_out(enum omap_plane plane,
 		enum omap_channel channel);
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 31637ba58f5f..ec98e177aec0 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -777,7 +777,9 @@ static int configure_overlay(enum omap_plane plane)
 
 	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
 
-	r = dispc_ovl_setup(plane, oi, ilace, c->channel, replication);
+	dispc_ovl_set_channel_out(plane, c->channel);
+
+	r = dispc_ovl_setup(plane, oi, ilace, replication);
 	if (r) {
 		/* this shouldn't happen */
 		DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);

From c64dca40c5cf1cc61355411dcfb90949e57afdf0 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 18:14:20 +0200
Subject: [PATCH 028/108] OMAPDSS: setup manager with dispc_mgr_setup()

Change manager configuration to be similar to overlay configuration by
creating dispc_mgr_setup() which takes omap_overlay_manager_info as
parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c   | 26 ++++++++++++++++++++------
 drivers/video/omap2/dss/dss.h     | 11 ++---------
 drivers/video/omap2/dss/manager.c |  9 +--------
 3 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index b66cf154f64e..9c070a22867b 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -996,7 +996,7 @@ void dispc_enable_gamma_table(bool enable)
 	REG_FLD_MOD(DISPC_CONFIG, enable, 9, 9);
 }
 
-void dispc_mgr_enable_cpr(enum omap_channel channel, bool enable)
+static void dispc_mgr_enable_cpr(enum omap_channel channel, bool enable)
 {
 	u16 reg;
 
@@ -1010,7 +1010,7 @@ void dispc_mgr_enable_cpr(enum omap_channel channel, bool enable)
 	REG_FLD_MOD(reg, enable, 15, 15);
 }
 
-void dispc_mgr_set_cpr_coef(enum omap_channel channel,
+static void dispc_mgr_set_cpr_coef(enum omap_channel channel,
 		struct omap_dss_cpr_coefs *coefs)
 {
 	u32 coef_r, coef_g, coef_b;
@@ -2164,7 +2164,7 @@ void dispc_set_loadmode(enum omap_dss_load_mode mode)
 }
 
 
-void dispc_mgr_set_default_color(enum omap_channel channel, u32 color)
+static void dispc_mgr_set_default_color(enum omap_channel channel, u32 color)
 {
 	dispc_write_reg(DISPC_DEFAULT_COLOR(channel), color);
 }
@@ -2182,7 +2182,7 @@ u32 dispc_mgr_get_default_color(enum omap_channel channel)
 	return l;
 }
 
-void dispc_mgr_set_trans_key(enum omap_channel ch,
+static void dispc_mgr_set_trans_key(enum omap_channel ch,
 		enum omap_dss_trans_key_type type,
 		u32 trans_key)
 {
@@ -2215,7 +2215,7 @@ void dispc_mgr_get_trans_key(enum omap_channel ch,
 		*trans_key = dispc_read_reg(DISPC_TRANS_COLOR(ch));
 }
 
-void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable)
+static void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable)
 {
 	if (ch == OMAP_DSS_CHANNEL_LCD)
 		REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
@@ -2225,7 +2225,8 @@ void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable)
 		REG_FLD_MOD(DISPC_CONFIG2, enable, 10, 10);
 }
 
-void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch, bool enable)
+static void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch,
+		bool enable)
 {
 	if (!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
 		return;
@@ -2269,6 +2270,19 @@ bool dispc_mgr_trans_key_enabled(enum omap_channel ch)
 	return enabled;
 }
 
+void dispc_mgr_setup(enum omap_channel channel,
+		struct omap_overlay_manager_info *info)
+{
+	dispc_mgr_set_default_color(channel, info->default_color);
+	dispc_mgr_set_trans_key(channel, info->trans_key_type, info->trans_key);
+	dispc_mgr_enable_trans_key(channel, info->trans_enabled);
+	dispc_mgr_enable_alpha_fixed_zorder(channel,
+			info->partial_alpha_enabled);
+	if (dss_has_feature(FEAT_CPR)) {
+		dispc_mgr_enable_cpr(channel, info->cpr_enable);
+		dispc_mgr_set_cpr_coef(channel, &info->cpr_coefs);
+	}
+}
 
 void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 11c72d15ead2..a8022578c603 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -405,9 +405,6 @@ void dispc_ovl_set_channel_out(enum omap_plane plane,
 
 void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable);
 void dispc_mgr_set_lcd_size(enum omap_channel channel, u16 width, u16 height);
-void dispc_mgr_enable_cpr(enum omap_channel channel, bool enable);
-void dispc_mgr_set_cpr_coef(enum omap_channel channel,
-		struct omap_dss_cpr_coefs *coefs);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
 bool dispc_mgr_is_enabled(enum omap_channel channel);
@@ -418,16 +415,10 @@ void dispc_mgr_enable_stallmode(enum omap_channel channel, bool enable);
 void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines);
 void dispc_mgr_set_lcd_display_type(enum omap_channel channel,
 		enum omap_lcd_display_type type);
-void dispc_mgr_set_default_color(enum omap_channel channel, u32 color);
 u32 dispc_mgr_get_default_color(enum omap_channel channel);
-void dispc_mgr_set_trans_key(enum omap_channel ch,
-		enum omap_dss_trans_key_type type,
-		u32 trans_key);
 void dispc_mgr_get_trans_key(enum omap_channel ch,
 		enum omap_dss_trans_key_type *type,
 		u32 *trans_key);
-void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable);
-void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch, bool enable);
 bool dispc_mgr_trans_key_enabled(enum omap_channel ch);
 bool dispc_mgr_alpha_fixed_zorder_enabled(enum omap_channel ch);
 void dispc_mgr_set_lcd_timings(enum omap_channel channel,
@@ -440,6 +431,8 @@ int dispc_mgr_set_clock_div(enum omap_channel channel,
 		struct dispc_clock_info *cinfo);
 int dispc_mgr_get_clock_div(enum omap_channel channel,
 		struct dispc_clock_info *cinfo);
+void dispc_mgr_setup(enum omap_channel channel,
+		struct omap_overlay_manager_info *info);
 
 /* VENC */
 #ifdef CONFIG_OMAP2_DSS_VENC
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index ec98e177aec0..3421955c63bb 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -803,14 +803,7 @@ static void configure_manager(enum omap_channel channel)
 	/* picking info from the cache */
 	mi = &dss_cache.manager_cache[channel].info;
 
-	dispc_mgr_set_default_color(channel, mi->default_color);
-	dispc_mgr_set_trans_key(channel, mi->trans_key_type, mi->trans_key);
-	dispc_mgr_enable_trans_key(channel, mi->trans_enabled);
-	dispc_mgr_enable_alpha_fixed_zorder(channel, mi->partial_alpha_enabled);
-	if (dss_has_feature(FEAT_CPR)) {
-		dispc_mgr_enable_cpr(channel, mi->cpr_enable);
-		dispc_mgr_set_cpr_coef(channel, &mi->cpr_coefs);
-	}
+	dispc_mgr_setup(channel, mi);
 }
 
 /* configure_dispc() tries to write values from cache to shadow registers.

From c3f96fee1eb8d541b4b5bb841f57bd453c70f12d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 18:14:11 +0200
Subject: [PATCH 029/108] OMAPDSS: DISPC: remove unused functions

Remove unused functions:

dispc_mgr_get_default_color
dispc_mgr_get_trans_key
dispc_mgr_trans_key_enabled
dispc_mgr_alpha_fixed_zorder_enabled

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 65 ---------------------------------
 drivers/video/omap2/dss/dss.h   |  6 ---
 2 files changed, 71 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 9c070a22867b..1264c2d1512b 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2169,19 +2169,6 @@ static void dispc_mgr_set_default_color(enum omap_channel channel, u32 color)
 	dispc_write_reg(DISPC_DEFAULT_COLOR(channel), color);
 }
 
-u32 dispc_mgr_get_default_color(enum omap_channel channel)
-{
-	u32 l;
-
-	BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT &&
-		channel != OMAP_DSS_CHANNEL_LCD &&
-		channel != OMAP_DSS_CHANNEL_LCD2);
-
-	l = dispc_read_reg(DISPC_DEFAULT_COLOR(channel));
-
-	return l;
-}
-
 static void dispc_mgr_set_trans_key(enum omap_channel ch,
 		enum omap_dss_trans_key_type type,
 		u32 trans_key)
@@ -2196,25 +2183,6 @@ static void dispc_mgr_set_trans_key(enum omap_channel ch,
 	dispc_write_reg(DISPC_TRANS_COLOR(ch), trans_key);
 }
 
-void dispc_mgr_get_trans_key(enum omap_channel ch,
-		enum omap_dss_trans_key_type *type,
-		u32 *trans_key)
-{
-	if (type) {
-		if (ch == OMAP_DSS_CHANNEL_LCD)
-			*type = REG_GET(DISPC_CONFIG, 11, 11);
-		else if (ch == OMAP_DSS_CHANNEL_DIGIT)
-			*type = REG_GET(DISPC_CONFIG, 13, 13);
-		else if (ch == OMAP_DSS_CHANNEL_LCD2)
-			*type = REG_GET(DISPC_CONFIG2, 11, 11);
-		else
-			BUG();
-	}
-
-	if (trans_key)
-		*trans_key = dispc_read_reg(DISPC_TRANS_COLOR(ch));
-}
-
 static void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable)
 {
 	if (ch == OMAP_DSS_CHANNEL_LCD)
@@ -2237,39 +2205,6 @@ static void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch,
 		REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
 }
 
-bool dispc_mgr_alpha_fixed_zorder_enabled(enum omap_channel ch)
-{
-	bool enabled;
-
-	if (!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
-		return false;
-
-	if (ch == OMAP_DSS_CHANNEL_LCD)
-		enabled = REG_GET(DISPC_CONFIG, 18, 18);
-	else if (ch == OMAP_DSS_CHANNEL_DIGIT)
-		enabled = REG_GET(DISPC_CONFIG, 19, 19);
-	else
-		BUG();
-
-	return enabled;
-}
-
-bool dispc_mgr_trans_key_enabled(enum omap_channel ch)
-{
-	bool enabled;
-
-	if (ch == OMAP_DSS_CHANNEL_LCD)
-		enabled = REG_GET(DISPC_CONFIG, 10, 10);
-	else if (ch == OMAP_DSS_CHANNEL_DIGIT)
-		enabled = REG_GET(DISPC_CONFIG, 12, 12);
-	else if (ch == OMAP_DSS_CHANNEL_LCD2)
-		enabled = REG_GET(DISPC_CONFIG2, 10, 10);
-	else
-		BUG();
-
-	return enabled;
-}
-
 void dispc_mgr_setup(enum omap_channel channel,
 		struct omap_overlay_manager_info *info)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index a8022578c603..5ac72433be57 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -415,12 +415,6 @@ void dispc_mgr_enable_stallmode(enum omap_channel channel, bool enable);
 void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines);
 void dispc_mgr_set_lcd_display_type(enum omap_channel channel,
 		enum omap_lcd_display_type type);
-u32 dispc_mgr_get_default_color(enum omap_channel channel);
-void dispc_mgr_get_trans_key(enum omap_channel ch,
-		enum omap_dss_trans_key_type *type,
-		u32 *trans_key);
-bool dispc_mgr_trans_key_enabled(enum omap_channel ch);
-bool dispc_mgr_alpha_fixed_zorder_enabled(enum omap_channel ch);
 void dispc_mgr_set_lcd_timings(enum omap_channel channel,
 		struct omap_video_timings *timings);
 void dispc_mgr_set_pol_freq(enum omap_channel channel,

From 550a8f646c76f27ede10265b8e4c9d54c9f4af27 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 13:00:10 +0200
Subject: [PATCH 030/108] OMAPDSS: remove unneeded dss_ovl_wait_for_go()

There's an unnecessary wrapper function, dss_ovl_wait_for_go(), which
does nothing else than call dss_mgr_wait_for_go_ovl(). The
dss_ovl_wait_for_go() function can be removed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/overlay.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index d15b826bf37f..0ab14fa9d907 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -548,11 +548,6 @@ static void dss_ovl_get_overlay_info(struct omap_overlay *ovl,
 	*info = ovl->info;
 }
 
-static int dss_ovl_wait_for_go(struct omap_overlay *ovl)
-{
-	return dss_mgr_wait_for_go_ovl(ovl);
-}
-
 static int omap_dss_set_manager(struct omap_overlay *ovl,
 		struct omap_overlay_manager *mgr)
 {
@@ -689,7 +684,7 @@ void dss_init_overlays(struct platform_device *pdev)
 		ovl->unset_manager = &omap_dss_unset_manager;
 		ovl->set_overlay_info = &dss_ovl_set_overlay_info;
 		ovl->get_overlay_info = &dss_ovl_get_overlay_info;
-		ovl->wait_for_go = &dss_ovl_wait_for_go;
+		ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
 
 		ovl->caps = dss_feat_get_overlay_caps(ovl->id);
 		ovl->supported_modes =

From 32eaa5841021c8d812a4f62898a6e8617d648846 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 09:04:15 +0200
Subject: [PATCH 031/108] OMAPDSS: add ovl/mgr_manual_update() helpers

Add helper functions ovl_manual_update() and mgr_manual_update() which
return whether the overlay or manager is used with a manual update
display.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/manager.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 3421955c63bb..8423cf85f682 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -538,7 +538,15 @@ static struct {
 	bool irq_enabled;
 } dss_cache;
 
+static bool ovl_manual_update(struct omap_overlay *ovl)
+{
+	return ovl->manager->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
+}
 
+static bool mgr_manual_update(struct omap_overlay_manager *mgr)
+{
+	return mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
+}
 
 static int omap_dss_set_device(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev)
@@ -627,7 +635,7 @@ static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
 		return 0;
 
-	if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
+	if (mgr_manual_update(mgr))
 		return 0;
 
 	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
@@ -696,7 +704,7 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
 		return 0;
 
-	if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
+	if (ovl_manual_update(ovl))
 		return 0;
 
 	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
@@ -1047,8 +1055,6 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 	/* Configure managers */
 	list_for_each_entry(mgr, &manager_list, list) {
-		struct omap_dss_device *dssdev;
-
 		mc = &dss_cache.manager_cache[mgr->id];
 
 		if (mgr->device_changed) {
@@ -1062,14 +1068,11 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 		if (!mgr->device)
 			continue;
 
-		dssdev = mgr->device;
-
 		mgr->info_dirty = false;
 		mc->dirty = true;
 		mc->info = mgr->info;
 
-		mc->manual_update =
-			dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
+		mc->manual_update = mgr_manual_update(mgr);
 	}
 
 	/* Configure overlay fifos */

From 209285012c792d3a0f758c7ace30af0ee4bc08a3 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 09:19:35 +0200
Subject: [PATCH 032/108] OMAPDSS: split omap_dss_mgr_apply() to smaller funcs

Split omap_dss_mgr_apply() into smaller functions for clarity.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/manager.c | 190 +++++++++++++++++-------------
 1 file changed, 105 insertions(+), 85 deletions(-)

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 8423cf85f682..d0d23157110b 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -993,107 +993,92 @@ end:
 	spin_unlock(&dss_cache.lock);
 }
 
-static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
+static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 {
 	struct overlay_cache_data *oc;
+	struct omap_dss_device *dssdev;
+
+	oc = &dss_cache.overlay_cache[ovl->id];
+
+	if (ovl->manager_changed) {
+		ovl->manager_changed = false;
+		ovl->info_dirty  = true;
+	}
+
+	if (!overlay_enabled(ovl)) {
+		if (oc->enabled) {
+			oc->enabled = false;
+			oc->dirty = true;
+		}
+		return 0;
+	}
+
+	if (!ovl->info_dirty)
+		return 0;
+
+	dssdev = ovl->manager->device;
+
+	if (dss_check_overlay(ovl, dssdev)) {
+		if (oc->enabled) {
+			oc->enabled = false;
+			oc->dirty = true;
+		}
+		return -EINVAL;
+	}
+
+	ovl->info_dirty = false;
+	oc->dirty = true;
+	oc->info = ovl->info;
+
+	oc->channel = ovl->manager->id;
+
+	oc->enabled = true;
+
+	return 0;
+}
+
+static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
+{
 	struct manager_cache_data *mc;
-	int i;
-	struct omap_overlay *ovl;
-	unsigned long flags;
-	int r;
 
-	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
+	mc = &dss_cache.manager_cache[mgr->id];
 
-	r = dispc_runtime_get();
-	if (r)
-		return r;
-
-	spin_lock_irqsave(&dss_cache.lock, flags);
-
-	/* Configure overlays */
-	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
-		struct omap_dss_device *dssdev;
-
-		ovl = omap_dss_get_overlay(i);
-
-		oc = &dss_cache.overlay_cache[ovl->id];
-
-		if (ovl->manager_changed) {
-			ovl->manager_changed = false;
-			ovl->info_dirty  = true;
-		}
-
-		if (!overlay_enabled(ovl)) {
-			if (oc->enabled) {
-				oc->enabled = false;
-				oc->dirty = true;
-			}
-			continue;
-		}
-
-		if (!ovl->info_dirty)
-			continue;
-
-		dssdev = ovl->manager->device;
-
-		if (dss_check_overlay(ovl, dssdev)) {
-			if (oc->enabled) {
-				oc->enabled = false;
-				oc->dirty = true;
-			}
-			continue;
-		}
-
-		ovl->info_dirty = false;
-		oc->dirty = true;
-		oc->info = ovl->info;
-
-		oc->channel = ovl->manager->id;
-
-		oc->enabled = true;
+	if (mgr->device_changed) {
+		mgr->device_changed = false;
+		mgr->info_dirty  = true;
 	}
 
-	/* Configure managers */
-	list_for_each_entry(mgr, &manager_list, list) {
-		mc = &dss_cache.manager_cache[mgr->id];
+	if (!mgr->info_dirty)
+		return;
 
-		if (mgr->device_changed) {
-			mgr->device_changed = false;
-			mgr->info_dirty  = true;
-		}
+	if (!mgr->device)
+		return;
 
-		if (!mgr->info_dirty)
-			continue;
+	mgr->info_dirty = false;
+	mc->dirty = true;
+	mc->info = mgr->info;
 
-		if (!mgr->device)
-			continue;
+	mc->manual_update = mgr_manual_update(mgr);
+}
 
-		mgr->info_dirty = false;
-		mc->dirty = true;
-		mc->info = mgr->info;
+static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
+{
+	struct overlay_cache_data *oc;
+	struct omap_dss_device *dssdev;
+	u32 size, burst_size;
 
-		mc->manual_update = mgr_manual_update(mgr);
-	}
+	oc = &dss_cache.overlay_cache[ovl->id];
 
-	/* Configure overlay fifos */
-	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
-		struct omap_dss_device *dssdev;
-		u32 size, burst_size;
+	if (!oc->enabled)
+		return;
 
-		ovl = omap_dss_get_overlay(i);
+	dssdev = ovl->manager->device;
 
-		oc = &dss_cache.overlay_cache[ovl->id];
+	size = dispc_ovl_get_fifo_size(ovl->id);
 
-		if (!oc->enabled)
-			continue;
+	burst_size = dispc_ovl_get_burst_size(ovl->id);
 
-		dssdev = ovl->manager->device;
-
-		size = dispc_ovl_get_fifo_size(ovl->id);
-
-		burst_size = dispc_ovl_get_burst_size(ovl->id);
-
-		switch (dssdev->type) {
+	switch (dssdev->type) {
 		case OMAP_DISPLAY_TYPE_DPI:
 		case OMAP_DISPLAY_TYPE_DBI:
 		case OMAP_DISPLAY_TYPE_SDI:
@@ -1112,7 +1097,42 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 #endif
 		default:
 			BUG();
-		}
+	}
+}
+
+static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
+{
+	int i, r;
+	unsigned long flags;
+
+	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
+
+	r = dispc_runtime_get();
+	if (r)
+		return r;
+
+	spin_lock_irqsave(&dss_cache.lock, flags);
+
+	/* Configure overlays */
+	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+		struct omap_overlay *ovl;
+
+		ovl = omap_dss_get_overlay(i);
+
+		omap_dss_mgr_apply_ovl(ovl);
+	}
+
+	/* Configure managers */
+	list_for_each_entry(mgr, &manager_list, list)
+		omap_dss_mgr_apply_mgr(mgr);
+
+	/* Configure overlay fifos */
+	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+		struct omap_overlay *ovl;
+
+		ovl = omap_dss_get_overlay(i);
+
+		omap_dss_mgr_apply_ovl_fifos(ovl);
 	}
 
 	r = 0;

From d2bbb9bbd1503e8b5235fe316e7ee0c7f41daf7e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 09:23:10 +0200
Subject: [PATCH 033/108] OMAPDSS: apply affects only one overlay manager

omap_dss_mgr_apply currently applies settings to all overlays and
overlay managers. The reason for this was to support cases where
configuration changes affecting multiple managers are made. However, the
current code doesn't support changing such configurations, so the
functionality is not needed.

Change the apply to affect only the manager given as an argument, and
the overlays attached to that manager.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/manager.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index d0d23157110b..d2bdd652d595 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -1114,23 +1114,28 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	spin_lock_irqsave(&dss_cache.lock, flags);
 
 	/* Configure overlays */
-	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+	for (i = 0; i < mgr->num_overlays; ++i) {
 		struct omap_overlay *ovl;
 
-		ovl = omap_dss_get_overlay(i);
+		ovl = mgr->overlays[i];
+
+		if (ovl->manager != mgr)
+			continue;
 
 		omap_dss_mgr_apply_ovl(ovl);
 	}
 
-	/* Configure managers */
-	list_for_each_entry(mgr, &manager_list, list)
-		omap_dss_mgr_apply_mgr(mgr);
+	/* Configure manager */
+	omap_dss_mgr_apply_mgr(mgr);
 
 	/* Configure overlay fifos */
-	for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
+	for (i = 0; i < mgr->num_overlays; ++i) {
 		struct omap_overlay *ovl;
 
-		ovl = omap_dss_get_overlay(i);
+		ovl = mgr->overlays[i];
+
+		if (ovl->manager != mgr)
+			continue;
 
 		omap_dss_mgr_apply_ovl_fifos(ovl);
 	}

From 58f2554807a7dc627f1583d1d4363b85758cf685 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 09:48:54 +0200
Subject: [PATCH 034/108] OMAPDSS: create apply.c

Create a new file, apply.c, and move code about handling the
apply-mechanism and configuration of the managers and overlays from
manager.c to apply.c.

Not all related code is moved in this patch, but only the core
apply/configure functions. The later patches move rest of the code from
overlay.c and manager.c, adding necessary locking at the same time.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile  |   3 +-
 drivers/video/omap2/dss/apply.c   | 656 ++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/core.c    |   2 +
 drivers/video/omap2/dss/dss.h     |   9 +-
 drivers/video/omap2/dss/manager.c | 621 ----------------------------
 5 files changed, 667 insertions(+), 624 deletions(-)
 create mode 100644 drivers/video/omap2/dss/apply.c

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index bd34ac5b2026..8594522184d9 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -1,5 +1,6 @@
 obj-$(CONFIG_OMAP2_DSS) += omapdss.o
-omapdss-y := core.o dss.o dss_features.o dispc.o display.o manager.o overlay.o
+omapdss-y := core.o dss.o dss_features.o dispc.o display.o manager.o overlay.o \
+	apply.o
 omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
 omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
new file mode 100644
index 000000000000..c634c986293d
--- /dev/null
+++ b/drivers/video/omap2/dss/apply.c
@@ -0,0 +1,656 @@
+/*
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "APPLY"
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+
+#include <video/omapdss.h>
+
+#include "dss.h"
+#include "dss_features.h"
+
+/*
+ * We have 4 levels of cache for the dispc settings. First two are in SW and
+ * the latter two in HW.
+ *
+ * +--------------------+
+ * |overlay/manager_info|
+ * +--------------------+
+ *          v
+ *        apply()
+ *          v
+ * +--------------------+
+ * |     dss_cache      |
+ * +--------------------+
+ *          v
+ *      configure()
+ *          v
+ * +--------------------+
+ * |  shadow registers  |
+ * +--------------------+
+ *          v
+ * VFP or lcd/digit_enable
+ *          v
+ * +--------------------+
+ * |      registers     |
+ * +--------------------+
+ */
+
+struct overlay_cache_data {
+	/* If true, cache changed, but not written to shadow registers. Set
+	 * in apply(), cleared when registers written. */
+	bool dirty;
+	/* If true, shadow registers contain changed values not yet in real
+	 * registers. Set when writing to shadow registers, cleared at
+	 * VSYNC/EVSYNC */
+	bool shadow_dirty;
+
+	bool enabled;
+
+	struct omap_overlay_info info;
+
+	enum omap_channel channel;
+
+	u32 fifo_low;
+	u32 fifo_high;
+};
+
+struct manager_cache_data {
+	/* If true, cache changed, but not written to shadow registers. Set
+	 * in apply(), cleared when registers written. */
+	bool dirty;
+	/* If true, shadow registers contain changed values not yet in real
+	 * registers. Set when writing to shadow registers, cleared at
+	 * VSYNC/EVSYNC */
+	bool shadow_dirty;
+
+	struct omap_overlay_manager_info info;
+
+	bool manual_update;
+	bool do_manual_update;
+};
+
+static struct {
+	spinlock_t lock;
+	struct overlay_cache_data overlay_cache[MAX_DSS_OVERLAYS];
+	struct manager_cache_data manager_cache[MAX_DSS_MANAGERS];
+
+	bool irq_enabled;
+} dss_cache;
+
+void dss_apply_init(void)
+{
+	spin_lock_init(&dss_cache.lock);
+}
+
+static bool ovl_manual_update(struct omap_overlay *ovl)
+{
+	return ovl->manager->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
+}
+
+static bool mgr_manual_update(struct omap_overlay_manager *mgr)
+{
+	return mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
+}
+
+static int overlay_enabled(struct omap_overlay *ovl)
+{
+	return ovl->info.enabled && ovl->manager && ovl->manager->device;
+}
+
+int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
+{
+	unsigned long timeout = msecs_to_jiffies(500);
+	struct manager_cache_data *mc;
+	u32 irq;
+	int r;
+	int i;
+	struct omap_dss_device *dssdev = mgr->device;
+
+	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+		return 0;
+
+	if (mgr_manual_update(mgr))
+		return 0;
+
+	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
+			|| dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
+		irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
+	} else {
+		irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
+			DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
+	}
+
+	mc = &dss_cache.manager_cache[mgr->id];
+	i = 0;
+	while (1) {
+		unsigned long flags;
+		bool shadow_dirty, dirty;
+
+		spin_lock_irqsave(&dss_cache.lock, flags);
+		dirty = mc->dirty;
+		shadow_dirty = mc->shadow_dirty;
+		spin_unlock_irqrestore(&dss_cache.lock, flags);
+
+		if (!dirty && !shadow_dirty) {
+			r = 0;
+			break;
+		}
+
+		/* 4 iterations is the worst case:
+		 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
+		 * 2 - first VSYNC, dirty = true
+		 * 3 - dirty = false, shadow_dirty = true
+		 * 4 - shadow_dirty = false */
+		if (i++ == 3) {
+			DSSERR("mgr(%d)->wait_for_go() not finishing\n",
+					mgr->id);
+			r = 0;
+			break;
+		}
+
+		r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
+		if (r == -ERESTARTSYS)
+			break;
+
+		if (r) {
+			DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
+			break;
+		}
+	}
+
+	return r;
+}
+
+int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
+{
+	unsigned long timeout = msecs_to_jiffies(500);
+	struct overlay_cache_data *oc;
+	struct omap_dss_device *dssdev;
+	u32 irq;
+	int r;
+	int i;
+
+	if (!ovl->manager)
+		return 0;
+
+	dssdev = ovl->manager->device;
+
+	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+		return 0;
+
+	if (ovl_manual_update(ovl))
+		return 0;
+
+	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
+			|| dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
+		irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
+	} else {
+		irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
+			DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
+	}
+
+	oc = &dss_cache.overlay_cache[ovl->id];
+	i = 0;
+	while (1) {
+		unsigned long flags;
+		bool shadow_dirty, dirty;
+
+		spin_lock_irqsave(&dss_cache.lock, flags);
+		dirty = oc->dirty;
+		shadow_dirty = oc->shadow_dirty;
+		spin_unlock_irqrestore(&dss_cache.lock, flags);
+
+		if (!dirty && !shadow_dirty) {
+			r = 0;
+			break;
+		}
+
+		/* 4 iterations is the worst case:
+		 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
+		 * 2 - first VSYNC, dirty = true
+		 * 3 - dirty = false, shadow_dirty = true
+		 * 4 - shadow_dirty = false */
+		if (i++ == 3) {
+			DSSERR("ovl(%d)->wait_for_go() not finishing\n",
+					ovl->id);
+			r = 0;
+			break;
+		}
+
+		r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
+		if (r == -ERESTARTSYS)
+			break;
+
+		if (r) {
+			DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
+			break;
+		}
+	}
+
+	return r;
+}
+
+static int configure_overlay(enum omap_plane plane)
+{
+	struct omap_overlay *ovl;
+	struct overlay_cache_data *c;
+	struct omap_overlay_info *oi;
+	bool ilace, replication;
+	int r;
+
+	DSSDBGF("%d", plane);
+
+	c = &dss_cache.overlay_cache[plane];
+	oi = &c->info;
+
+	if (!c->enabled) {
+		dispc_ovl_enable(plane, 0);
+		return 0;
+	}
+
+	ovl = omap_dss_get_overlay(plane);
+
+	replication = dss_use_replication(ovl->manager->device, oi->color_mode);
+
+	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
+
+	dispc_ovl_set_channel_out(plane, c->channel);
+
+	r = dispc_ovl_setup(plane, oi, ilace, replication);
+	if (r) {
+		/* this shouldn't happen */
+		DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);
+		dispc_ovl_enable(plane, 0);
+		return r;
+	}
+
+	dispc_ovl_set_fifo_threshold(plane, c->fifo_low, c->fifo_high);
+
+	dispc_ovl_enable(plane, 1);
+
+	return 0;
+}
+
+static void configure_manager(enum omap_channel channel)
+{
+	struct omap_overlay_manager_info *mi;
+
+	DSSDBGF("%d", channel);
+
+	/* picking info from the cache */
+	mi = &dss_cache.manager_cache[channel].info;
+
+	dispc_mgr_setup(channel, mi);
+}
+
+/* configure_dispc() tries to write values from cache to shadow registers.
+ * It writes only to those managers/overlays that are not busy.
+ * returns 0 if everything could be written to shadow registers.
+ * returns 1 if not everything could be written to shadow registers. */
+static int configure_dispc(void)
+{
+	struct overlay_cache_data *oc;
+	struct manager_cache_data *mc;
+	const int num_ovls = dss_feat_get_num_ovls();
+	const int num_mgrs = dss_feat_get_num_mgrs();
+	int i;
+	int r;
+	bool mgr_busy[MAX_DSS_MANAGERS];
+	bool mgr_go[MAX_DSS_MANAGERS];
+	bool busy;
+
+	r = 0;
+	busy = false;
+
+	for (i = 0; i < num_mgrs; i++) {
+		mgr_busy[i] = dispc_mgr_go_busy(i);
+		mgr_go[i] = false;
+	}
+
+	/* Commit overlay settings */
+	for (i = 0; i < num_ovls; ++i) {
+		oc = &dss_cache.overlay_cache[i];
+		mc = &dss_cache.manager_cache[oc->channel];
+
+		if (!oc->dirty)
+			continue;
+
+		if (mc->manual_update && !mc->do_manual_update)
+			continue;
+
+		if (mgr_busy[oc->channel]) {
+			busy = true;
+			continue;
+		}
+
+		r = configure_overlay(i);
+		if (r)
+			DSSERR("configure_overlay %d failed\n", i);
+
+		oc->dirty = false;
+		oc->shadow_dirty = true;
+		mgr_go[oc->channel] = true;
+	}
+
+	/* Commit manager settings */
+	for (i = 0; i < num_mgrs; ++i) {
+		mc = &dss_cache.manager_cache[i];
+
+		if (!mc->dirty)
+			continue;
+
+		if (mc->manual_update && !mc->do_manual_update)
+			continue;
+
+		if (mgr_busy[i]) {
+			busy = true;
+			continue;
+		}
+
+		configure_manager(i);
+		mc->dirty = false;
+		mc->shadow_dirty = true;
+		mgr_go[i] = true;
+	}
+
+	/* set GO */
+	for (i = 0; i < num_mgrs; ++i) {
+		mc = &dss_cache.manager_cache[i];
+
+		if (!mgr_go[i])
+			continue;
+
+		/* We don't need GO with manual update display. LCD iface will
+		 * always be turned off after frame, and new settings will be
+		 * taken in to use at next update */
+		if (!mc->manual_update)
+			dispc_mgr_go(i);
+	}
+
+	if (busy)
+		r = 1;
+	else
+		r = 0;
+
+	return r;
+}
+
+void dss_mgr_start_update(struct omap_overlay_manager *mgr)
+{
+	struct manager_cache_data *mc;
+	struct overlay_cache_data *oc;
+	const int num_ovls = dss_feat_get_num_ovls();
+	const int num_mgrs = dss_feat_get_num_mgrs();
+	int i;
+
+	mc = &dss_cache.manager_cache[mgr->id];
+
+	mc->do_manual_update = true;
+	configure_dispc();
+	mc->do_manual_update = false;
+
+	for (i = 0; i < num_ovls; ++i) {
+		oc = &dss_cache.overlay_cache[i];
+		if (oc->channel != mgr->id)
+			continue;
+
+		oc->shadow_dirty = false;
+	}
+
+	for (i = 0; i < num_mgrs; ++i) {
+		mc = &dss_cache.manager_cache[i];
+		if (mgr->id != i)
+			continue;
+
+		mc->shadow_dirty = false;
+	}
+
+	mgr->enable(mgr);
+}
+
+static void dss_apply_irq_handler(void *data, u32 mask)
+{
+	struct manager_cache_data *mc;
+	struct overlay_cache_data *oc;
+	const int num_ovls = dss_feat_get_num_ovls();
+	const int num_mgrs = dss_feat_get_num_mgrs();
+	int i, r;
+	bool mgr_busy[MAX_DSS_MANAGERS];
+	u32 irq_mask;
+
+	for (i = 0; i < num_mgrs; i++)
+		mgr_busy[i] = dispc_mgr_go_busy(i);
+
+	spin_lock(&dss_cache.lock);
+
+	for (i = 0; i < num_ovls; ++i) {
+		oc = &dss_cache.overlay_cache[i];
+		if (!mgr_busy[oc->channel])
+			oc->shadow_dirty = false;
+	}
+
+	for (i = 0; i < num_mgrs; ++i) {
+		mc = &dss_cache.manager_cache[i];
+		if (!mgr_busy[i])
+			mc->shadow_dirty = false;
+	}
+
+	r = configure_dispc();
+	if (r == 1)
+		goto end;
+
+	/* re-read busy flags */
+	for (i = 0; i < num_mgrs; i++)
+		mgr_busy[i] = dispc_mgr_go_busy(i);
+
+	/* keep running as long as there are busy managers, so that
+	 * we can collect overlay-applied information */
+	for (i = 0; i < num_mgrs; ++i) {
+		if (mgr_busy[i])
+			goto end;
+	}
+
+	irq_mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
+			DISPC_IRQ_EVSYNC_EVEN;
+	if (dss_has_feature(FEAT_MGR_LCD2))
+		irq_mask |= DISPC_IRQ_VSYNC2;
+
+	omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, irq_mask);
+	dss_cache.irq_enabled = false;
+
+end:
+	spin_unlock(&dss_cache.lock);
+}
+
+static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
+{
+	struct overlay_cache_data *oc;
+	struct omap_dss_device *dssdev;
+
+	oc = &dss_cache.overlay_cache[ovl->id];
+
+	if (ovl->manager_changed) {
+		ovl->manager_changed = false;
+		ovl->info_dirty  = true;
+	}
+
+	if (!overlay_enabled(ovl)) {
+		if (oc->enabled) {
+			oc->enabled = false;
+			oc->dirty = true;
+		}
+		return 0;
+	}
+
+	if (!ovl->info_dirty)
+		return 0;
+
+	dssdev = ovl->manager->device;
+
+	if (dss_check_overlay(ovl, dssdev)) {
+		if (oc->enabled) {
+			oc->enabled = false;
+			oc->dirty = true;
+		}
+		return -EINVAL;
+	}
+
+	ovl->info_dirty = false;
+	oc->dirty = true;
+	oc->info = ovl->info;
+
+	oc->channel = ovl->manager->id;
+
+	oc->enabled = true;
+
+	return 0;
+}
+
+static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
+{
+	struct manager_cache_data *mc;
+
+	mc = &dss_cache.manager_cache[mgr->id];
+
+	if (mgr->device_changed) {
+		mgr->device_changed = false;
+		mgr->info_dirty  = true;
+	}
+
+	if (!mgr->info_dirty)
+		return;
+
+	if (!mgr->device)
+		return;
+
+	mgr->info_dirty = false;
+	mc->dirty = true;
+	mc->info = mgr->info;
+
+	mc->manual_update = mgr_manual_update(mgr);
+}
+
+static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
+{
+	struct overlay_cache_data *oc;
+	struct omap_dss_device *dssdev;
+	u32 size, burst_size;
+
+	oc = &dss_cache.overlay_cache[ovl->id];
+
+	if (!oc->enabled)
+		return;
+
+	dssdev = ovl->manager->device;
+
+	size = dispc_ovl_get_fifo_size(ovl->id);
+
+	burst_size = dispc_ovl_get_burst_size(ovl->id);
+
+	switch (dssdev->type) {
+	case OMAP_DISPLAY_TYPE_DPI:
+	case OMAP_DISPLAY_TYPE_DBI:
+	case OMAP_DISPLAY_TYPE_SDI:
+	case OMAP_DISPLAY_TYPE_VENC:
+	case OMAP_DISPLAY_TYPE_HDMI:
+		default_get_overlay_fifo_thresholds(ovl->id, size,
+				burst_size, &oc->fifo_low,
+				&oc->fifo_high);
+		break;
+#ifdef CONFIG_OMAP2_DSS_DSI
+	case OMAP_DISPLAY_TYPE_DSI:
+		dsi_get_overlay_fifo_thresholds(ovl->id, size,
+				burst_size, &oc->fifo_low,
+				&oc->fifo_high);
+		break;
+#endif
+	default:
+		BUG();
+	}
+}
+
+int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
+{
+	int i, r;
+	unsigned long flags;
+
+	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
+
+	r = dispc_runtime_get();
+	if (r)
+		return r;
+
+	spin_lock_irqsave(&dss_cache.lock, flags);
+
+	/* Configure overlays */
+	for (i = 0; i < mgr->num_overlays; ++i) {
+		struct omap_overlay *ovl;
+
+		ovl = mgr->overlays[i];
+
+		if (ovl->manager != mgr)
+			continue;
+
+		omap_dss_mgr_apply_ovl(ovl);
+	}
+
+	/* Configure manager */
+	omap_dss_mgr_apply_mgr(mgr);
+
+	/* Configure overlay fifos */
+	for (i = 0; i < mgr->num_overlays; ++i) {
+		struct omap_overlay *ovl;
+
+		ovl = mgr->overlays[i];
+
+		if (ovl->manager != mgr)
+			continue;
+
+		omap_dss_mgr_apply_ovl_fifos(ovl);
+	}
+
+	r = 0;
+	if (!dss_cache.irq_enabled) {
+		u32 mask;
+
+		mask = DISPC_IRQ_VSYNC	| DISPC_IRQ_EVSYNC_ODD |
+			DISPC_IRQ_EVSYNC_EVEN;
+		if (dss_has_feature(FEAT_MGR_LCD2))
+			mask |= DISPC_IRQ_VSYNC2;
+
+		r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
+
+		if (r)
+			DSSERR("failed to register apply isr\n");
+
+		dss_cache.irq_enabled = true;
+	}
+
+	configure_dispc();
+
+	spin_unlock_irqrestore(&dss_cache.lock, flags);
+
+	dispc_runtime_put();
+
+	return r;
+}
+
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 86ec12e16c7c..5c464304cc8d 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -178,6 +178,8 @@ static int omap_dss_probe(struct platform_device *pdev)
 
 	dss_features_init();
 
+	dss_apply_init();
+
 	dss_init_overlay_managers(pdev);
 	dss_init_overlays(pdev);
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 5ac72433be57..e6f961aa4362 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -163,6 +163,13 @@ struct bus_type *dss_get_bus(void);
 struct regulator *dss_get_vdds_dsi(void);
 struct regulator *dss_get_vdds_sdi(void);
 
+/* apply */
+void dss_apply_init(void);
+int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr);
+int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
+void dss_mgr_start_update(struct omap_overlay_manager *mgr);
+int omap_dss_mgr_apply(struct omap_overlay_manager *mgr);
+
 /* display */
 int dss_suspend_all_devices(void);
 int dss_resume_all_devices(void);
@@ -181,8 +188,6 @@ void default_get_overlay_fifo_thresholds(enum omap_plane plane,
 /* manager */
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
-int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
-void dss_mgr_start_update(struct omap_overlay_manager *mgr);
 
 /* overlay */
 void dss_init_overlays(struct platform_device *pdev);
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index d2bdd652d595..f9e691b4ba4a 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -26,11 +26,9 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/spinlock.h>
 #include <linux/jiffies.h>
 
 #include <video/omapdss.h>
-#include <plat/cpu.h>
 
 #include "dss.h"
 #include "dss_features.h"
@@ -469,85 +467,6 @@ static struct kobj_type manager_ktype = {
 	.default_attrs = manager_sysfs_attrs,
 };
 
-/*
- * We have 4 levels of cache for the dispc settings. First two are in SW and
- * the latter two in HW.
- *
- * +--------------------+
- * |overlay/manager_info|
- * +--------------------+
- *          v
- *        apply()
- *          v
- * +--------------------+
- * |     dss_cache      |
- * +--------------------+
- *          v
- *      configure()
- *          v
- * +--------------------+
- * |  shadow registers  |
- * +--------------------+
- *          v
- * VFP or lcd/digit_enable
- *          v
- * +--------------------+
- * |      registers     |
- * +--------------------+
- */
-
-struct overlay_cache_data {
-	/* If true, cache changed, but not written to shadow registers. Set
-	 * in apply(), cleared when registers written. */
-	bool dirty;
-	/* If true, shadow registers contain changed values not yet in real
-	 * registers. Set when writing to shadow registers, cleared at
-	 * VSYNC/EVSYNC */
-	bool shadow_dirty;
-
-	bool enabled;
-
-	struct omap_overlay_info info;
-
-	enum omap_channel channel;
-
-	u32 fifo_low;
-	u32 fifo_high;
-};
-
-struct manager_cache_data {
-	/* If true, cache changed, but not written to shadow registers. Set
-	 * in apply(), cleared when registers written. */
-	bool dirty;
-	/* If true, shadow registers contain changed values not yet in real
-	 * registers. Set when writing to shadow registers, cleared at
-	 * VSYNC/EVSYNC */
-	bool shadow_dirty;
-
-	struct omap_overlay_manager_info info;
-
-	bool manual_update;
-	bool do_manual_update;
-};
-
-static struct {
-	spinlock_t lock;
-	struct overlay_cache_data overlay_cache[MAX_DSS_OVERLAYS];
-	struct manager_cache_data manager_cache[MAX_DSS_MANAGERS];
-
-	bool irq_enabled;
-} dss_cache;
-
-static bool ovl_manual_update(struct omap_overlay *ovl)
-{
-	return ovl->manager->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
-}
-
-static bool mgr_manual_update(struct omap_overlay_manager *mgr)
-{
-	return mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
-}
-
 static int omap_dss_set_device(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev)
 {
@@ -623,544 +542,6 @@ static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 	return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
 }
 
-static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
-{
-	unsigned long timeout = msecs_to_jiffies(500);
-	struct manager_cache_data *mc;
-	u32 irq;
-	int r;
-	int i;
-	struct omap_dss_device *dssdev = mgr->device;
-
-	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
-		return 0;
-
-	if (mgr_manual_update(mgr))
-		return 0;
-
-	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
-			|| dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
-		irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
-	} else {
-		irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
-			DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
-	}
-
-	mc = &dss_cache.manager_cache[mgr->id];
-	i = 0;
-	while (1) {
-		unsigned long flags;
-		bool shadow_dirty, dirty;
-
-		spin_lock_irqsave(&dss_cache.lock, flags);
-		dirty = mc->dirty;
-		shadow_dirty = mc->shadow_dirty;
-		spin_unlock_irqrestore(&dss_cache.lock, flags);
-
-		if (!dirty && !shadow_dirty) {
-			r = 0;
-			break;
-		}
-
-		/* 4 iterations is the worst case:
-		 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
-		 * 2 - first VSYNC, dirty = true
-		 * 3 - dirty = false, shadow_dirty = true
-		 * 4 - shadow_dirty = false */
-		if (i++ == 3) {
-			DSSERR("mgr(%d)->wait_for_go() not finishing\n",
-					mgr->id);
-			r = 0;
-			break;
-		}
-
-		r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
-		if (r == -ERESTARTSYS)
-			break;
-
-		if (r) {
-			DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
-			break;
-		}
-	}
-
-	return r;
-}
-
-int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
-{
-	unsigned long timeout = msecs_to_jiffies(500);
-	struct overlay_cache_data *oc;
-	struct omap_dss_device *dssdev;
-	u32 irq;
-	int r;
-	int i;
-
-	if (!ovl->manager)
-		return 0;
-
-	dssdev = ovl->manager->device;
-
-	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
-		return 0;
-
-	if (ovl_manual_update(ovl))
-		return 0;
-
-	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
-			|| dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
-		irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
-	} else {
-		irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
-			DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
-	}
-
-	oc = &dss_cache.overlay_cache[ovl->id];
-	i = 0;
-	while (1) {
-		unsigned long flags;
-		bool shadow_dirty, dirty;
-
-		spin_lock_irqsave(&dss_cache.lock, flags);
-		dirty = oc->dirty;
-		shadow_dirty = oc->shadow_dirty;
-		spin_unlock_irqrestore(&dss_cache.lock, flags);
-
-		if (!dirty && !shadow_dirty) {
-			r = 0;
-			break;
-		}
-
-		/* 4 iterations is the worst case:
-		 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
-		 * 2 - first VSYNC, dirty = true
-		 * 3 - dirty = false, shadow_dirty = true
-		 * 4 - shadow_dirty = false */
-		if (i++ == 3) {
-			DSSERR("ovl(%d)->wait_for_go() not finishing\n",
-					ovl->id);
-			r = 0;
-			break;
-		}
-
-		r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
-		if (r == -ERESTARTSYS)
-			break;
-
-		if (r) {
-			DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
-			break;
-		}
-	}
-
-	return r;
-}
-
-static int overlay_enabled(struct omap_overlay *ovl)
-{
-	return ovl->info.enabled && ovl->manager && ovl->manager->device;
-}
-
-static int configure_overlay(enum omap_plane plane)
-{
-	struct omap_overlay *ovl;
-	struct overlay_cache_data *c;
-	struct omap_overlay_info *oi;
-	bool ilace, replication;
-	int r;
-
-	DSSDBGF("%d", plane);
-
-	c = &dss_cache.overlay_cache[plane];
-	oi = &c->info;
-
-	if (!c->enabled) {
-		dispc_ovl_enable(plane, 0);
-		return 0;
-	}
-
-	ovl = omap_dss_get_overlay(plane);
-
-	replication = dss_use_replication(ovl->manager->device, oi->color_mode);
-
-	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
-
-	dispc_ovl_set_channel_out(plane, c->channel);
-
-	r = dispc_ovl_setup(plane, oi, ilace, replication);
-	if (r) {
-		/* this shouldn't happen */
-		DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);
-		dispc_ovl_enable(plane, 0);
-		return r;
-	}
-
-	dispc_ovl_set_fifo_threshold(plane, c->fifo_low, c->fifo_high);
-
-	dispc_ovl_enable(plane, 1);
-
-	return 0;
-}
-
-static void configure_manager(enum omap_channel channel)
-{
-	struct omap_overlay_manager_info *mi;
-
-	DSSDBGF("%d", channel);
-
-	/* picking info from the cache */
-	mi = &dss_cache.manager_cache[channel].info;
-
-	dispc_mgr_setup(channel, mi);
-}
-
-/* configure_dispc() tries to write values from cache to shadow registers.
- * It writes only to those managers/overlays that are not busy.
- * returns 0 if everything could be written to shadow registers.
- * returns 1 if not everything could be written to shadow registers. */
-static int configure_dispc(void)
-{
-	struct overlay_cache_data *oc;
-	struct manager_cache_data *mc;
-	const int num_ovls = dss_feat_get_num_ovls();
-	const int num_mgrs = dss_feat_get_num_mgrs();
-	int i;
-	int r;
-	bool mgr_busy[MAX_DSS_MANAGERS];
-	bool mgr_go[MAX_DSS_MANAGERS];
-	bool busy;
-
-	r = 0;
-	busy = false;
-
-	for (i = 0; i < num_mgrs; i++) {
-		mgr_busy[i] = dispc_mgr_go_busy(i);
-		mgr_go[i] = false;
-	}
-
-	/* Commit overlay settings */
-	for (i = 0; i < num_ovls; ++i) {
-		oc = &dss_cache.overlay_cache[i];
-		mc = &dss_cache.manager_cache[oc->channel];
-
-		if (!oc->dirty)
-			continue;
-
-		if (mc->manual_update && !mc->do_manual_update)
-			continue;
-
-		if (mgr_busy[oc->channel]) {
-			busy = true;
-			continue;
-		}
-
-		r = configure_overlay(i);
-		if (r)
-			DSSERR("configure_overlay %d failed\n", i);
-
-		oc->dirty = false;
-		oc->shadow_dirty = true;
-		mgr_go[oc->channel] = true;
-	}
-
-	/* Commit manager settings */
-	for (i = 0; i < num_mgrs; ++i) {
-		mc = &dss_cache.manager_cache[i];
-
-		if (!mc->dirty)
-			continue;
-
-		if (mc->manual_update && !mc->do_manual_update)
-			continue;
-
-		if (mgr_busy[i]) {
-			busy = true;
-			continue;
-		}
-
-		configure_manager(i);
-		mc->dirty = false;
-		mc->shadow_dirty = true;
-		mgr_go[i] = true;
-	}
-
-	/* set GO */
-	for (i = 0; i < num_mgrs; ++i) {
-		mc = &dss_cache.manager_cache[i];
-
-		if (!mgr_go[i])
-			continue;
-
-		/* We don't need GO with manual update display. LCD iface will
-		 * always be turned off after frame, and new settings will be
-		 * taken in to use at next update */
-		if (!mc->manual_update)
-			dispc_mgr_go(i);
-	}
-
-	if (busy)
-		r = 1;
-	else
-		r = 0;
-
-	return r;
-}
-
-void dss_mgr_start_update(struct omap_overlay_manager *mgr)
-{
-	struct manager_cache_data *mc;
-	struct overlay_cache_data *oc;
-	const int num_ovls = dss_feat_get_num_ovls();
-	const int num_mgrs = dss_feat_get_num_mgrs();
-	int i;
-
-	mc = &dss_cache.manager_cache[mgr->id];
-
-	mc->do_manual_update = true;
-	configure_dispc();
-	mc->do_manual_update = false;
-
-	for (i = 0; i < num_ovls; ++i) {
-		oc = &dss_cache.overlay_cache[i];
-		if (oc->channel != mgr->id)
-			continue;
-
-		oc->shadow_dirty = false;
-	}
-
-	for (i = 0; i < num_mgrs; ++i) {
-		mc = &dss_cache.manager_cache[i];
-		if (mgr->id != i)
-			continue;
-
-		mc->shadow_dirty = false;
-	}
-
-	mgr->enable(mgr);
-}
-
-static void dss_apply_irq_handler(void *data, u32 mask)
-{
-	struct manager_cache_data *mc;
-	struct overlay_cache_data *oc;
-	const int num_ovls = dss_feat_get_num_ovls();
-	const int num_mgrs = dss_feat_get_num_mgrs();
-	int i, r;
-	bool mgr_busy[MAX_DSS_MANAGERS];
-	u32 irq_mask;
-
-	for (i = 0; i < num_mgrs; i++)
-		mgr_busy[i] = dispc_mgr_go_busy(i);
-
-	spin_lock(&dss_cache.lock);
-
-	for (i = 0; i < num_ovls; ++i) {
-		oc = &dss_cache.overlay_cache[i];
-		if (!mgr_busy[oc->channel])
-			oc->shadow_dirty = false;
-	}
-
-	for (i = 0; i < num_mgrs; ++i) {
-		mc = &dss_cache.manager_cache[i];
-		if (!mgr_busy[i])
-			mc->shadow_dirty = false;
-	}
-
-	r = configure_dispc();
-	if (r == 1)
-		goto end;
-
-	/* re-read busy flags */
-	for (i = 0; i < num_mgrs; i++)
-		mgr_busy[i] = dispc_mgr_go_busy(i);
-
-	/* keep running as long as there are busy managers, so that
-	 * we can collect overlay-applied information */
-	for (i = 0; i < num_mgrs; ++i) {
-		if (mgr_busy[i])
-			goto end;
-	}
-
-	irq_mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
-			DISPC_IRQ_EVSYNC_EVEN;
-	if (dss_has_feature(FEAT_MGR_LCD2))
-		irq_mask |= DISPC_IRQ_VSYNC2;
-
-	omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, irq_mask);
-	dss_cache.irq_enabled = false;
-
-end:
-	spin_unlock(&dss_cache.lock);
-}
-
-static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
-{
-	struct overlay_cache_data *oc;
-	struct omap_dss_device *dssdev;
-
-	oc = &dss_cache.overlay_cache[ovl->id];
-
-	if (ovl->manager_changed) {
-		ovl->manager_changed = false;
-		ovl->info_dirty  = true;
-	}
-
-	if (!overlay_enabled(ovl)) {
-		if (oc->enabled) {
-			oc->enabled = false;
-			oc->dirty = true;
-		}
-		return 0;
-	}
-
-	if (!ovl->info_dirty)
-		return 0;
-
-	dssdev = ovl->manager->device;
-
-	if (dss_check_overlay(ovl, dssdev)) {
-		if (oc->enabled) {
-			oc->enabled = false;
-			oc->dirty = true;
-		}
-		return -EINVAL;
-	}
-
-	ovl->info_dirty = false;
-	oc->dirty = true;
-	oc->info = ovl->info;
-
-	oc->channel = ovl->manager->id;
-
-	oc->enabled = true;
-
-	return 0;
-}
-
-static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
-{
-	struct manager_cache_data *mc;
-
-	mc = &dss_cache.manager_cache[mgr->id];
-
-	if (mgr->device_changed) {
-		mgr->device_changed = false;
-		mgr->info_dirty  = true;
-	}
-
-	if (!mgr->info_dirty)
-		return;
-
-	if (!mgr->device)
-		return;
-
-	mgr->info_dirty = false;
-	mc->dirty = true;
-	mc->info = mgr->info;
-
-	mc->manual_update = mgr_manual_update(mgr);
-}
-
-static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
-{
-	struct overlay_cache_data *oc;
-	struct omap_dss_device *dssdev;
-	u32 size, burst_size;
-
-	oc = &dss_cache.overlay_cache[ovl->id];
-
-	if (!oc->enabled)
-		return;
-
-	dssdev = ovl->manager->device;
-
-	size = dispc_ovl_get_fifo_size(ovl->id);
-
-	burst_size = dispc_ovl_get_burst_size(ovl->id);
-
-	switch (dssdev->type) {
-		case OMAP_DISPLAY_TYPE_DPI:
-		case OMAP_DISPLAY_TYPE_DBI:
-		case OMAP_DISPLAY_TYPE_SDI:
-		case OMAP_DISPLAY_TYPE_VENC:
-		case OMAP_DISPLAY_TYPE_HDMI:
-			default_get_overlay_fifo_thresholds(ovl->id, size,
-					burst_size, &oc->fifo_low,
-					&oc->fifo_high);
-			break;
-#ifdef CONFIG_OMAP2_DSS_DSI
-		case OMAP_DISPLAY_TYPE_DSI:
-			dsi_get_overlay_fifo_thresholds(ovl->id, size,
-					burst_size, &oc->fifo_low,
-					&oc->fifo_high);
-			break;
-#endif
-		default:
-			BUG();
-	}
-}
-
-static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
-{
-	int i, r;
-	unsigned long flags;
-
-	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
-
-	r = dispc_runtime_get();
-	if (r)
-		return r;
-
-	spin_lock_irqsave(&dss_cache.lock, flags);
-
-	/* Configure overlays */
-	for (i = 0; i < mgr->num_overlays; ++i) {
-		struct omap_overlay *ovl;
-
-		ovl = mgr->overlays[i];
-
-		if (ovl->manager != mgr)
-			continue;
-
-		omap_dss_mgr_apply_ovl(ovl);
-	}
-
-	/* Configure manager */
-	omap_dss_mgr_apply_mgr(mgr);
-
-	/* Configure overlay fifos */
-	for (i = 0; i < mgr->num_overlays; ++i) {
-		struct omap_overlay *ovl;
-
-		ovl = mgr->overlays[i];
-
-		if (ovl->manager != mgr)
-			continue;
-
-		omap_dss_mgr_apply_ovl_fifos(ovl);
-	}
-
-	r = 0;
-	if (!dss_cache.irq_enabled) {
-		u32 mask;
-
-		mask = DISPC_IRQ_VSYNC	| DISPC_IRQ_EVSYNC_ODD |
-			DISPC_IRQ_EVSYNC_EVEN;
-		if (dss_has_feature(FEAT_MGR_LCD2))
-			mask |= DISPC_IRQ_VSYNC2;
-
-		r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
-		dss_cache.irq_enabled = true;
-	}
-	configure_dispc();
-
-	spin_unlock_irqrestore(&dss_cache.lock, flags);
-
-	dispc_runtime_put();
-
-	return r;
-}
-
 static int dss_check_manager(struct omap_overlay_manager *mgr)
 {
 	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
@@ -1226,8 +607,6 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 {
 	int i, r;
 
-	spin_lock_init(&dss_cache.lock);
-
 	INIT_LIST_HEAD(&manager_list);
 
 	num_managers = 0;

From 7797c6da64852b06b585b7eca8d3f657bfc9fa47 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 10:22:46 +0200
Subject: [PATCH 035/108] OMAPDSS: hide manager's enable/disable()

omap_overlay_manager struct contains enable() and disable() functions.
However, these are only meant to be used from inside omapdss, and thus
it's bad to expose the functions.

This patch adds dss_mgr_enable() and dss_mgr_disable() functions to
apply.c, which handle enabling and disabling the output.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 12 +++++++++++-
 drivers/video/omap2/dss/dpi.c     |  4 ++--
 drivers/video/omap2/dss/dsi.c     |  4 ++--
 drivers/video/omap2/dss/dss.h     |  2 ++
 drivers/video/omap2/dss/hdmi.c    |  6 +++---
 drivers/video/omap2/dss/manager.c | 15 ---------------
 drivers/video/omap2/dss/sdi.c     |  4 ++--
 drivers/video/omap2/dss/venc.c    |  4 ++--
 include/video/omapdss.h           |  3 ---
 9 files changed, 24 insertions(+), 30 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index c634c986293d..414cbd907239 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -424,7 +424,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 		mc->shadow_dirty = false;
 	}
 
-	mgr->enable(mgr);
+	dispc_mgr_enable(mgr->id, true);
 }
 
 static void dss_apply_irq_handler(void *data, u32 mask)
@@ -654,3 +654,13 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	return r;
 }
 
+void dss_mgr_enable(struct omap_overlay_manager *mgr)
+{
+	dispc_mgr_enable(mgr->id, true);
+}
+
+void dss_mgr_disable(struct omap_overlay_manager *mgr)
+{
+	dispc_mgr_enable(mgr->id, false);
+}
+
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 976ac23dcd0c..79c4df3c9a88 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -223,7 +223,7 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 
 	mdelay(2);
 
-	dssdev->manager->enable(dssdev->manager);
+	dss_mgr_enable(dssdev->manager);
 
 	return 0;
 
@@ -249,7 +249,7 @@ EXPORT_SYMBOL(omapdss_dpi_display_enable);
 
 void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
 {
-	dssdev->manager->disable(dssdev->manager);
+	dss_mgr_disable(dssdev->manager);
 
 	if (dpi_use_dsi_pll(dssdev)) {
 		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 101e3b8e178b..9358afa2a77e 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4010,7 +4010,7 @@ int dsi_video_mode_enable(struct omap_dss_device *dssdev, int channel)
 	dsi_vc_enable(dsidev, channel, true);
 	dsi_if_enable(dsidev, true);
 
-	dssdev->manager->enable(dssdev->manager);
+	dss_mgr_enable(dssdev->manager);
 
 	return 0;
 }
@@ -4029,7 +4029,7 @@ void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel)
 	dsi_vc_enable(dsidev, channel, true);
 	dsi_if_enable(dsidev, true);
 
-	dssdev->manager->disable(dssdev->manager);
+	dss_mgr_disable(dssdev->manager);
 }
 EXPORT_SYMBOL(dsi_video_mode_disable);
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index e6f961aa4362..03c724475bcc 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -169,6 +169,8 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr);
 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
 void dss_mgr_start_update(struct omap_overlay_manager *mgr);
 int omap_dss_mgr_apply(struct omap_overlay_manager *mgr);
+void dss_mgr_enable(struct omap_overlay_manager *mgr);
+void dss_mgr_disable(struct omap_overlay_manager *mgr);
 
 /* display */
 int dss_suspend_all_devices(void);
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index c56378c555b0..e245a2bbba9d 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -333,7 +333,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 	if (r)
 		return r;
 
-	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 0);
+	dss_mgr_disable(dssdev->manager);
 
 	p = &dssdev->panel.timings;
 
@@ -387,7 +387,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 
 	hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 1);
 
-	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 1);
+	dss_mgr_enable(dssdev->manager);
 
 	return 0;
 err:
@@ -397,7 +397,7 @@ err:
 
 static void hdmi_power_off(struct omap_dss_device *dssdev)
 {
-	dispc_mgr_enable(OMAP_DSS_CHANNEL_DIGIT, 0);
+	dss_mgr_disable(dssdev->manager);
 
 	hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 0);
 	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index f9e691b4ba4a..780a307c815e 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -585,18 +585,6 @@ static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr,
 	*info = mgr->info;
 }
 
-static int dss_mgr_enable(struct omap_overlay_manager *mgr)
-{
-	dispc_mgr_enable(mgr->id, 1);
-	return 0;
-}
-
-static int dss_mgr_disable(struct omap_overlay_manager *mgr)
-{
-	dispc_mgr_enable(mgr->id, 0);
-	return 0;
-}
-
 static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager)
 {
 	++num_managers;
@@ -640,9 +628,6 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 		mgr->wait_for_go = &dss_mgr_wait_for_go;
 		mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
 
-		mgr->enable = &dss_mgr_enable;
-		mgr->disable = &dss_mgr_disable;
-
 		mgr->caps = 0;
 		mgr->supported_displays =
 			dss_feat_get_supported_displays(mgr->id);
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 40305ad7841e..02da8beb7304 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -123,7 +123,7 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
 		goto err_sdi_enable;
 	mdelay(2);
 
-	dssdev->manager->enable(dssdev->manager);
+	dss_mgr_enable(dssdev->manager);
 
 	return 0;
 
@@ -145,7 +145,7 @@ EXPORT_SYMBOL(omapdss_sdi_display_enable);
 
 void omapdss_sdi_display_disable(struct omap_dss_device *dssdev)
 {
-	dssdev->manager->disable(dssdev->manager);
+	dss_mgr_disable(dssdev->manager);
 
 	dss_sdi_disable();
 
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 7533458ba4d2..101fcd77a50d 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -447,7 +447,7 @@ static void venc_power_on(struct omap_dss_device *dssdev)
 	if (dssdev->platform_enable)
 		dssdev->platform_enable(dssdev);
 
-	dssdev->manager->enable(dssdev->manager);
+	dss_mgr_enable(dssdev->manager);
 }
 
 static void venc_power_off(struct omap_dss_device *dssdev)
@@ -455,7 +455,7 @@ static void venc_power_off(struct omap_dss_device *dssdev)
 	venc_write_reg(VENC_OUTPUT_CONTROL, 0);
 	dss_set_dac_pwrdn_bgz(0);
 
-	dssdev->manager->disable(dssdev->manager);
+	dss_mgr_disable(dssdev->manager);
 
 	if (dssdev->platform_disable)
 		dssdev->platform_disable(dssdev);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 60bf4260253b..04741cd4c32a 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -448,9 +448,6 @@ struct omap_overlay_manager {
 	int (*apply)(struct omap_overlay_manager *mgr);
 	int (*wait_for_go)(struct omap_overlay_manager *mgr);
 	int (*wait_for_vsync)(struct omap_overlay_manager *mgr);
-
-	int (*enable)(struct omap_overlay_manager *mgr);
-	int (*disable)(struct omap_overlay_manager *mgr);
 };
 
 struct omap_dss_device {

From be729178f0e0f31ab14b42b3fe5d6b4463fbeb3a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 10:30:47 +0200
Subject: [PATCH 036/108] OMAPDSS: APPLY: track whether a manager is enabled

Add "enabled" field to struct omap_overlay_manager, which tells if the
output is enabled or not. This will be used in apply.c in the following
patches.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 2 ++
 include/video/omapdss.h         | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 414cbd907239..46fdb63a4dbc 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -657,10 +657,12 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 void dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
 	dispc_mgr_enable(mgr->id, true);
+	mgr->enabled = true;
 }
 
 void dss_mgr_disable(struct omap_overlay_manager *mgr)
 {
 	dispc_mgr_enable(mgr->id, false);
+	mgr->enabled = false;
 }
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 04741cd4c32a..d61efc3105a7 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -432,6 +432,8 @@ struct omap_overlay_manager {
 	struct omap_dss_device *device;
 	struct omap_overlay_manager_info info;
 
+	bool enabled;
+
 	bool device_changed;
 	/* if true, info has been changed but not applied() yet */
 	bool info_dirty;

From 18135eadac6f0fd1bf61b7af24f14e7174155e6d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 4 Nov 2011 09:35:59 +0200
Subject: [PATCH 037/108] OMAPDSS: APPLY: skip isr register and config for
 manual update displays

The mechanism to cache manager and overlay settings and configure them
into the HW registers in VSYNC is meant only for auto-update displays,
as it doesn't make sense (and doesn't work) for manual-update displays.

This patchs adds a check so that we skip the above for manual update
displays.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 46fdb63a4dbc..0da8081fc7c4 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -629,24 +629,27 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	}
 
 	r = 0;
-	if (!dss_cache.irq_enabled) {
-		u32 mask;
+	if (!mgr_manual_update(mgr)) {
+		if (!dss_cache.irq_enabled) {
+			u32 mask;
 
-		mask = DISPC_IRQ_VSYNC	| DISPC_IRQ_EVSYNC_ODD |
-			DISPC_IRQ_EVSYNC_EVEN;
-		if (dss_has_feature(FEAT_MGR_LCD2))
-			mask |= DISPC_IRQ_VSYNC2;
+			mask = DISPC_IRQ_VSYNC	| DISPC_IRQ_EVSYNC_ODD |
+				DISPC_IRQ_EVSYNC_EVEN;
+			if (dss_has_feature(FEAT_MGR_LCD2))
+				mask |= DISPC_IRQ_VSYNC2;
 
-		r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
+			r = omap_dispc_register_isr(dss_apply_irq_handler,
+					NULL, mask);
 
-		if (r)
-			DSSERR("failed to register apply isr\n");
+			if (r)
+				DSSERR("failed to register apply isr\n");
 
-		dss_cache.irq_enabled = true;
+			dss_cache.irq_enabled = true;
+		}
+
+		configure_dispc();
 	}
 
-	configure_dispc();
-
 	spin_unlock_irqrestore(&dss_cache.lock, flags);
 
 	dispc_runtime_put();

From 04f6643a8657bd080344d2928dde917e0b1b3800 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 7 Nov 2011 15:04:01 +0200
Subject: [PATCH 038/108] OMAPDSS: APPLY: skip isr register and config for
 disabled displays

There's no need to register the vsync ISR and configure the hardware if
the overlay manager is disabled, so this patch adds a check for disabled
managers to the omap_dss_mgr_apply() function.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 0da8081fc7c4..7919ff384749 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -629,7 +629,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	}
 
 	r = 0;
-	if (!mgr_manual_update(mgr)) {
+	if (mgr->enabled && !mgr_manual_update(mgr)) {
 		if (!dss_cache.irq_enabled) {
 			u32 mask;
 

From 6e53ca9dda65dd300ce150822832ba6e169643c7 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 1 Nov 2011 13:58:50 +0200
Subject: [PATCH 039/108] OMAPDSS: APPLY: cleanup dss_mgr_start_update

dss_mgr_start_update() has a loop, of which sole purpose is to find the
manager used for this update. The whole loop is extra, as we already
know the manager.

Remove the loop.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 7919ff384749..ba1f73c136ce 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -399,7 +399,6 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	struct manager_cache_data *mc;
 	struct overlay_cache_data *oc;
 	const int num_ovls = dss_feat_get_num_ovls();
-	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i;
 
 	mc = &dss_cache.manager_cache[mgr->id];
@@ -416,13 +415,8 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 		oc->shadow_dirty = false;
 	}
 
-	for (i = 0; i < num_mgrs; ++i) {
-		mc = &dss_cache.manager_cache[i];
-		if (mgr->id != i)
-			continue;
-
-		mc->shadow_dirty = false;
-	}
+	mc = &dss_cache.manager_cache[mgr->id];
+	mc->shadow_dirty = false;
 
 	dispc_mgr_enable(mgr->id, true);
 }

From 58452341265844d830ef5d0e705ee7577461bc45 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Sat, 5 Nov 2011 10:39:59 +0200
Subject: [PATCH 040/108] OMAPDSS: store overlays in an array

Overlays are stored in a linked list. There's no need for this list, as
an array would do just as fine.

This patch changes the code to use an array for overlays.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/overlay.c | 49 +++++++++++--------------------
 1 file changed, 17 insertions(+), 32 deletions(-)

diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 0ab14fa9d907..ccd6127d2eef 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -38,7 +38,7 @@
 #include "dss_features.h"
 
 static int num_overlays;
-static struct list_head overlay_list;
+static struct omap_overlay *overlays;
 
 static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf)
 {
@@ -610,24 +610,13 @@ EXPORT_SYMBOL(omap_dss_get_num_overlays);
 
 struct omap_overlay *omap_dss_get_overlay(int num)
 {
-	int i = 0;
-	struct omap_overlay *ovl;
+	if (num >= num_overlays)
+		return NULL;
 
-	list_for_each_entry(ovl, &overlay_list, list) {
-		if (i++ == num)
-			return ovl;
-	}
-
-	return NULL;
+	return &overlays[num];
 }
 EXPORT_SYMBOL(omap_dss_get_overlay);
 
-static void omap_dss_add_overlay(struct omap_overlay *overlay)
-{
-	++num_overlays;
-	list_add_tail(&overlay->list, &overlay_list);
-}
-
 static struct omap_overlay *dispc_overlays[MAX_DSS_OVERLAYS];
 
 void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
@@ -640,15 +629,15 @@ void dss_init_overlays(struct platform_device *pdev)
 {
 	int i, r;
 
-	INIT_LIST_HEAD(&overlay_list);
+	num_overlays = dss_feat_get_num_ovls();
 
-	num_overlays = 0;
+	overlays = kzalloc(sizeof(struct omap_overlay) * num_overlays,
+			GFP_KERNEL);
 
-	for (i = 0; i < dss_feat_get_num_ovls(); ++i) {
-		struct omap_overlay *ovl;
-		ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
+	BUG_ON(overlays == NULL);
 
-		BUG_ON(ovl == NULL);
+	for (i = 0; i < num_overlays; ++i) {
+		struct omap_overlay *ovl = &overlays[i];
 
 		switch (i) {
 		case 0:
@@ -690,15 +679,11 @@ void dss_init_overlays(struct platform_device *pdev)
 		ovl->supported_modes =
 			dss_feat_get_supported_color_modes(ovl->id);
 
-		omap_dss_add_overlay(ovl);
-
 		r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
 				&pdev->dev.kobj, "overlay%d", i);
 
-		if (r) {
+		if (r)
 			DSSERR("failed to create sysfs file\n");
-			continue;
-		}
 
 		dispc_overlays[i] = ovl;
 	}
@@ -765,17 +750,17 @@ void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
 
 void dss_uninit_overlays(struct platform_device *pdev)
 {
-	struct omap_overlay *ovl;
+	int i;
+
+	for (i = 0; i < num_overlays; ++i) {
+		struct omap_overlay *ovl = &overlays[i];
 
-	while (!list_empty(&overlay_list)) {
-		ovl = list_first_entry(&overlay_list,
-				struct omap_overlay, list);
-		list_del(&ovl->list);
 		kobject_del(&ovl->kobj);
 		kobject_put(&ovl->kobj);
-		kfree(ovl);
 	}
 
+	kfree(overlays);
+	overlays = NULL;
 	num_overlays = 0;
 }
 

From 5617ad097959cb39b96d08af0a9b3d51215deaba Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Sat, 5 Nov 2011 10:44:48 +0200
Subject: [PATCH 041/108] OMAPDSS: store managers in an array

Overlay managers are stored in a linked list. There's no need for this
list, as an array would do just as fine.

This patch changes the code to use an array for overlay managers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/manager.c | 49 +++++++++++--------------------
 include/video/omapdss.h           |  1 -
 2 files changed, 17 insertions(+), 33 deletions(-)

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 780a307c815e..a08cc6e7f5ca 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -34,7 +34,7 @@
 #include "dss_features.h"
 
 static int num_managers;
-static struct list_head manager_list;
+static struct omap_overlay_manager *managers;
 
 static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
 {
@@ -585,25 +585,19 @@ static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr,
 	*info = mgr->info;
 }
 
-static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager)
-{
-	++num_managers;
-	list_add_tail(&manager->list, &manager_list);
-}
-
 int dss_init_overlay_managers(struct platform_device *pdev)
 {
 	int i, r;
 
-	INIT_LIST_HEAD(&manager_list);
+	num_managers = dss_feat_get_num_mgrs();
 
-	num_managers = 0;
+	managers = kzalloc(sizeof(struct omap_overlay_manager) * num_managers,
+			GFP_KERNEL);
 
-	for (i = 0; i < dss_feat_get_num_mgrs(); ++i) {
-		struct omap_overlay_manager *mgr;
-		mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
+	BUG_ON(managers == NULL);
 
-		BUG_ON(mgr == NULL);
+	for (i = 0; i < num_managers; ++i) {
+		struct omap_overlay_manager *mgr = &managers[i];
 
 		switch (i) {
 		case 0:
@@ -634,15 +628,11 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 
 		dss_overlay_setup_dispc_manager(mgr);
 
-		omap_dss_add_overlay_manager(mgr);
-
 		r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
 				&pdev->dev.kobj, "manager%d", i);
 
-		if (r) {
+		if (r)
 			DSSERR("failed to create sysfs file\n");
-			continue;
-		}
 	}
 
 	return 0;
@@ -650,17 +640,17 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 
 void dss_uninit_overlay_managers(struct platform_device *pdev)
 {
-	struct omap_overlay_manager *mgr;
+	int i;
+
+	for (i = 0; i < num_managers; ++i) {
+		struct omap_overlay_manager *mgr = &managers[i];
 
-	while (!list_empty(&manager_list)) {
-		mgr = list_first_entry(&manager_list,
-				struct omap_overlay_manager, list);
-		list_del(&mgr->list);
 		kobject_del(&mgr->kobj);
 		kobject_put(&mgr->kobj);
-		kfree(mgr);
 	}
 
+	kfree(managers);
+	managers = NULL;
 	num_managers = 0;
 }
 
@@ -672,15 +662,10 @@ EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
 
 struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
 {
-	int i = 0;
-	struct omap_overlay_manager *mgr;
+	if (num >= num_managers)
+		return NULL;
 
-	list_for_each_entry(mgr, &manager_list, list) {
-		if (i++ == num)
-			return mgr;
-	}
-
-	return NULL;
+	return &managers[num];
 }
 EXPORT_SYMBOL(omap_dss_get_overlay_manager);
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index d61efc3105a7..fd5a96c5ecc5 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -418,7 +418,6 @@ struct omap_overlay_manager_info {
 
 struct omap_overlay_manager {
 	struct kobject kobj;
-	struct list_head list;
 
 	/* static fields */
 	const char *name;

From 07e327c9c18b382656bf455051759be8182627ae Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Sat, 5 Nov 2011 10:59:59 +0200
Subject: [PATCH 042/108] OMAPDSS: store overlays in a list for each manager

Current way of handling overlay-manager links is a bit strange: each
manager has a static array, containing pointers to all the overlays
(even those used by other managers). The overlays contain a pointer to
the manager being used.

This patch makes the system a bit saner: each manager has a linked list
of overlays, and only the overlays linked to that manager are in the
list.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 33 +++++++------------------------
 drivers/video/omap2/dss/manager.c | 10 ++++------
 drivers/video/omap2/dss/overlay.c | 12 ++---------
 include/video/omapdss.h           |  3 +--
 4 files changed, 14 insertions(+), 44 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index ba1f73c136ce..34879d0628bd 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -398,8 +398,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	struct manager_cache_data *mc;
 	struct overlay_cache_data *oc;
-	const int num_ovls = dss_feat_get_num_ovls();
-	int i;
+	struct omap_overlay *ovl;
 
 	mc = &dss_cache.manager_cache[mgr->id];
 
@@ -407,11 +406,8 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	configure_dispc();
 	mc->do_manual_update = false;
 
-	for (i = 0; i < num_ovls; ++i) {
-		oc = &dss_cache.overlay_cache[i];
-		if (oc->channel != mgr->id)
-			continue;
-
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		oc = &dss_cache.overlay_cache[ovl->id];
 		oc->shadow_dirty = false;
 	}
 
@@ -584,8 +580,9 @@ static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
 
 int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 {
-	int i, r;
+	int r;
 	unsigned long flags;
+	struct omap_overlay *ovl;
 
 	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
 
@@ -596,31 +593,15 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	spin_lock_irqsave(&dss_cache.lock, flags);
 
 	/* Configure overlays */
-	for (i = 0; i < mgr->num_overlays; ++i) {
-		struct omap_overlay *ovl;
-
-		ovl = mgr->overlays[i];
-
-		if (ovl->manager != mgr)
-			continue;
-
+	list_for_each_entry(ovl, &mgr->overlays, list)
 		omap_dss_mgr_apply_ovl(ovl);
-	}
 
 	/* Configure manager */
 	omap_dss_mgr_apply_mgr(mgr);
 
 	/* Configure overlay fifos */
-	for (i = 0; i < mgr->num_overlays; ++i) {
-		struct omap_overlay *ovl;
-
-		ovl = mgr->overlays[i];
-
-		if (ovl->manager != mgr)
-			continue;
-
+	list_for_each_entry(ovl, &mgr->overlays, list)
 		omap_dss_mgr_apply_ovl_fifos(ovl);
-	}
 
 	r = 0;
 	if (mgr->enabled && !mgr_manual_update(mgr)) {
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index a08cc6e7f5ca..62bcc384e7ae 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -470,8 +470,8 @@ static struct kobj_type manager_ktype = {
 static int omap_dss_set_device(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev)
 {
-	int i;
 	int r;
+	struct omap_overlay *ovl;
 
 	if (dssdev->manager) {
 		DSSERR("display '%s' already has a manager '%s'\n",
@@ -485,10 +485,8 @@ static int omap_dss_set_device(struct omap_overlay_manager *mgr,
 		return -EINVAL;
 	}
 
-	for (i = 0; i < mgr->num_overlays; i++) {
-		struct omap_overlay *ovl = mgr->overlays[i];
-
-		if (ovl->manager != mgr || !ovl->info.enabled)
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		if (!ovl->info.enabled)
 			continue;
 
 		r = dss_check_overlay(ovl, dssdev);
@@ -626,7 +624,7 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 		mgr->supported_displays =
 			dss_feat_get_supported_displays(mgr->id);
 
-		dss_overlay_setup_dispc_manager(mgr);
+		INIT_LIST_HEAD(&mgr->overlays);
 
 		r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
 				&pdev->dev.kobj, "manager%d", i);
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index ccd6127d2eef..3c940654ef91 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -566,6 +566,7 @@ static int omap_dss_set_manager(struct omap_overlay *ovl,
 	}
 
 	ovl->manager = mgr;
+	list_add_tail(&ovl->list, &mgr->overlays);
 	ovl->manager_changed = true;
 
 	/* XXX: When there is an overlay on a DSI manual update display, and
@@ -597,6 +598,7 @@ static int omap_dss_unset_manager(struct omap_overlay *ovl)
 	}
 
 	ovl->manager = NULL;
+	list_del(&ovl->list);
 	ovl->manager_changed = true;
 
 	return 0;
@@ -617,14 +619,6 @@ struct omap_overlay *omap_dss_get_overlay(int num)
 }
 EXPORT_SYMBOL(omap_dss_get_overlay);
 
-static struct omap_overlay *dispc_overlays[MAX_DSS_OVERLAYS];
-
-void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
-{
-	mgr->num_overlays = dss_feat_get_num_ovls();
-	mgr->overlays = dispc_overlays;
-}
-
 void dss_init_overlays(struct platform_device *pdev)
 {
 	int i, r;
@@ -684,8 +678,6 @@ void dss_init_overlays(struct platform_device *pdev)
 
 		if (r)
 			DSSERR("failed to create sysfs file\n");
-
-		dispc_overlays[i] = ovl;
 	}
 }
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index fd5a96c5ecc5..eaeca89de152 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -423,8 +423,7 @@ struct omap_overlay_manager {
 	const char *name;
 	enum omap_channel id;
 	enum omap_overlay_manager_caps caps;
-	int num_overlays;
-	struct omap_overlay **overlays;
+	struct list_head overlays;
 	enum omap_display_type supported_displays;
 
 	/* dynamic fields */

From dbce0160af31d2ea323656c201d8debf5af789bf Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 11:18:12 +0200
Subject: [PATCH 043/108] OMAPDSS: APPLY: separate vsync isr
 register/unregister

Create separate functions for the vsync isr register/unregister code for
cleaner code.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 61 ++++++++++++++++++++-------------
 1 file changed, 37 insertions(+), 24 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 34879d0628bd..dfce82e11a36 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -417,6 +417,40 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	dispc_mgr_enable(mgr->id, true);
 }
 
+static void dss_apply_irq_handler(void *data, u32 mask);
+
+static void dss_register_vsync_isr(void)
+{
+	u32 mask;
+	int r;
+
+	mask = DISPC_IRQ_VSYNC	| DISPC_IRQ_EVSYNC_ODD |
+		DISPC_IRQ_EVSYNC_EVEN;
+	if (dss_has_feature(FEAT_MGR_LCD2))
+		mask |= DISPC_IRQ_VSYNC2;
+
+	r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
+	WARN_ON(r);
+
+	dss_cache.irq_enabled = true;
+}
+
+static void dss_unregister_vsync_isr(void)
+{
+	u32 mask;
+	int r;
+
+	mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
+			DISPC_IRQ_EVSYNC_EVEN;
+	if (dss_has_feature(FEAT_MGR_LCD2))
+		mask |= DISPC_IRQ_VSYNC2;
+
+	r = omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, mask);
+	WARN_ON(r);
+
+	dss_cache.irq_enabled = false;
+}
+
 static void dss_apply_irq_handler(void *data, u32 mask)
 {
 	struct manager_cache_data *mc;
@@ -425,7 +459,6 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i, r;
 	bool mgr_busy[MAX_DSS_MANAGERS];
-	u32 irq_mask;
 
 	for (i = 0; i < num_mgrs; i++)
 		mgr_busy[i] = dispc_mgr_go_busy(i);
@@ -459,13 +492,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 			goto end;
 	}
 
-	irq_mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
-			DISPC_IRQ_EVSYNC_EVEN;
-	if (dss_has_feature(FEAT_MGR_LCD2))
-		irq_mask |= DISPC_IRQ_VSYNC2;
-
-	omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, irq_mask);
-	dss_cache.irq_enabled = false;
+	dss_unregister_vsync_isr();
 
 end:
 	spin_unlock(&dss_cache.lock);
@@ -605,22 +632,8 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 	r = 0;
 	if (mgr->enabled && !mgr_manual_update(mgr)) {
-		if (!dss_cache.irq_enabled) {
-			u32 mask;
-
-			mask = DISPC_IRQ_VSYNC	| DISPC_IRQ_EVSYNC_ODD |
-				DISPC_IRQ_EVSYNC_EVEN;
-			if (dss_has_feature(FEAT_MGR_LCD2))
-				mask |= DISPC_IRQ_VSYNC2;
-
-			r = omap_dispc_register_isr(dss_apply_irq_handler,
-					NULL, mask);
-
-			if (r)
-				DSSERR("failed to register apply isr\n");
-
-			dss_cache.irq_enabled = true;
-		}
+		if (!dss_cache.irq_enabled)
+			dss_register_vsync_isr();
 
 		configure_dispc();
 	}

From 3dcec4d6ba65a4e14987f48e8d98c4290ceb2c29 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 7 Nov 2011 15:50:09 +0200
Subject: [PATCH 044/108] OMAPDSS: DISPC: Add dispc_mgr_get_vsync_irq()

Add dispc_mgr_get_vsync_irq() which returns the irq number for vsync on
the given channel.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 14 ++++++++++++++
 drivers/video/omap2/dss/dss.h   |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 1264c2d1512b..5f09120d4537 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -438,6 +438,20 @@ static struct omap_dss_device *dispc_mgr_get_device(enum omap_channel channel)
 	return mgr ? mgr->device : NULL;
 }
 
+u32 dispc_mgr_get_vsync_irq(enum omap_channel channel)
+{
+	switch (channel) {
+	case OMAP_DSS_CHANNEL_LCD:
+		return DISPC_IRQ_VSYNC;
+	case OMAP_DSS_CHANNEL_LCD2:
+		return DISPC_IRQ_VSYNC2;
+	case OMAP_DSS_CHANNEL_DIGIT:
+		return DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
+	default:
+		BUG();
+	}
+}
+
 bool dispc_mgr_go_busy(enum omap_channel channel)
 {
 	int bit;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 03c724475bcc..1535496677ba 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -409,9 +409,9 @@ int dispc_ovl_enable(enum omap_plane plane, bool enable);
 void dispc_ovl_set_channel_out(enum omap_plane plane,
 		enum omap_channel channel);
 
-
 void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable);
 void dispc_mgr_set_lcd_size(enum omap_channel channel, u16 width, u16 height);
+u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
 bool dispc_mgr_is_enabled(enum omap_channel channel);

From bc1a95181f7069920c13fcef0159ffa7d61160f1 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 11:20:13 +0200
Subject: [PATCH 045/108] OMAPDSS: APPLY: use dispc_mgr_get_vsync_irq()

Use dispc_mgr_get_vsync_irq() to get the interrupt numbers for vsync,
instead of hardcoding the values depending on the display type.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 36 +++++++++++----------------------
 1 file changed, 12 insertions(+), 24 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index dfce82e11a36..9cdfbfa629de 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -131,13 +131,7 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 	if (mgr_manual_update(mgr))
 		return 0;
 
-	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
-			|| dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
-		irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
-	} else {
-		irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
-			DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
-	}
+	irq = dispc_mgr_get_vsync_irq(mgr->id);
 
 	mc = &dss_cache.manager_cache[mgr->id];
 	i = 0;
@@ -200,13 +194,7 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 	if (ovl_manual_update(ovl))
 		return 0;
 
-	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
-			|| dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
-		irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
-	} else {
-		irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
-			DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
-	}
+	irq = dispc_mgr_get_vsync_irq(ovl->manager->id);
 
 	oc = &dss_cache.overlay_cache[ovl->id];
 	i = 0;
@@ -421,13 +409,13 @@ static void dss_apply_irq_handler(void *data, u32 mask);
 
 static void dss_register_vsync_isr(void)
 {
+	const int num_mgrs = dss_feat_get_num_mgrs();
 	u32 mask;
-	int r;
+	int r, i;
 
-	mask = DISPC_IRQ_VSYNC	| DISPC_IRQ_EVSYNC_ODD |
-		DISPC_IRQ_EVSYNC_EVEN;
-	if (dss_has_feature(FEAT_MGR_LCD2))
-		mask |= DISPC_IRQ_VSYNC2;
+	mask = 0;
+	for (i = 0; i < num_mgrs; ++i)
+		mask |= dispc_mgr_get_vsync_irq(i);
 
 	r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
 	WARN_ON(r);
@@ -437,13 +425,13 @@ static void dss_register_vsync_isr(void)
 
 static void dss_unregister_vsync_isr(void)
 {
+	const int num_mgrs = dss_feat_get_num_mgrs();
 	u32 mask;
-	int r;
+	int r, i;
 
-	mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
-			DISPC_IRQ_EVSYNC_EVEN;
-	if (dss_has_feature(FEAT_MGR_LCD2))
-		mask |= DISPC_IRQ_VSYNC2;
+	mask = 0;
+	for (i = 0; i < num_mgrs; ++i)
+		mask |= dispc_mgr_get_vsync_irq(i);
 
 	r = omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, mask);
 	WARN_ON(r);

From f6a5e0871f22428a7c74c07ddd791197c5f5d38f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 11:47:39 +0200
Subject: [PATCH 046/108] OMAPDSS: APPLY: configure_* funcs take ovl/manager as
 args

Make configure_overlay() and configure_manager() take overlay/manager
pointer as an argument, instead of the ovl/mgr id. This will be useful
with the future patches.

Also rename the functions to be a bit more informative:
dss_ovl_write_regs, dss_mgr_write_regs, dss_write_regs.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 54 ++++++++++++++++-----------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 9cdfbfa629de..82d122b209a3 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -41,7 +41,7 @@
  * |     dss_cache      |
  * +--------------------+
  *          v
- *      configure()
+ *      write_regs()
  *          v
  * +--------------------+
  * |  shadow registers  |
@@ -237,65 +237,63 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 	return r;
 }
 
-static int configure_overlay(enum omap_plane plane)
+static int dss_ovl_write_regs(struct omap_overlay *ovl)
 {
-	struct omap_overlay *ovl;
 	struct overlay_cache_data *c;
 	struct omap_overlay_info *oi;
 	bool ilace, replication;
 	int r;
 
-	DSSDBGF("%d", plane);
+	DSSDBGF("%d", ovl->id);
 
-	c = &dss_cache.overlay_cache[plane];
+	c = &dss_cache.overlay_cache[ovl->id];
 	oi = &c->info;
 
 	if (!c->enabled) {
-		dispc_ovl_enable(plane, 0);
+		dispc_ovl_enable(ovl->id, 0);
 		return 0;
 	}
 
-	ovl = omap_dss_get_overlay(plane);
-
 	replication = dss_use_replication(ovl->manager->device, oi->color_mode);
 
 	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
 
-	dispc_ovl_set_channel_out(plane, c->channel);
+	dispc_ovl_set_channel_out(ovl->id, c->channel);
 
-	r = dispc_ovl_setup(plane, oi, ilace, replication);
+	r = dispc_ovl_setup(ovl->id, oi, ilace, replication);
 	if (r) {
 		/* this shouldn't happen */
-		DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);
-		dispc_ovl_enable(plane, 0);
+		DSSERR("dispc_ovl_setup failed for ovl %d\n", ovl->id);
+		dispc_ovl_enable(ovl->id, 0);
 		return r;
 	}
 
-	dispc_ovl_set_fifo_threshold(plane, c->fifo_low, c->fifo_high);
+	dispc_ovl_set_fifo_threshold(ovl->id, c->fifo_low, c->fifo_high);
 
-	dispc_ovl_enable(plane, 1);
+	dispc_ovl_enable(ovl->id, 1);
 
 	return 0;
 }
 
-static void configure_manager(enum omap_channel channel)
+static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
 {
 	struct omap_overlay_manager_info *mi;
 
-	DSSDBGF("%d", channel);
+	DSSDBGF("%d", mgr->id);
 
-	/* picking info from the cache */
-	mi = &dss_cache.manager_cache[channel].info;
+	mi = &dss_cache.manager_cache[mgr->id].info;
 
-	dispc_mgr_setup(channel, mi);
+	dispc_mgr_setup(mgr->id, mi);
 }
 
-/* configure_dispc() tries to write values from cache to shadow registers.
+/* dss_write_regs() tries to write values from cache to shadow registers.
  * It writes only to those managers/overlays that are not busy.
  * returns 0 if everything could be written to shadow registers.
  * returns 1 if not everything could be written to shadow registers. */
-static int configure_dispc(void)
+static int dss_write_regs(void)
 {
+	struct omap_overlay *ovl;
+	struct omap_overlay_manager *mgr;
 	struct overlay_cache_data *oc;
 	struct manager_cache_data *mc;
 	const int num_ovls = dss_feat_get_num_ovls();
@@ -316,6 +314,7 @@ static int configure_dispc(void)
 
 	/* Commit overlay settings */
 	for (i = 0; i < num_ovls; ++i) {
+		ovl = omap_dss_get_overlay(i);
 		oc = &dss_cache.overlay_cache[i];
 		mc = &dss_cache.manager_cache[oc->channel];
 
@@ -330,9 +329,9 @@ static int configure_dispc(void)
 			continue;
 		}
 
-		r = configure_overlay(i);
+		r = dss_ovl_write_regs(ovl);
 		if (r)
-			DSSERR("configure_overlay %d failed\n", i);
+			DSSERR("dss_ovl_write_regs %d failed\n", i);
 
 		oc->dirty = false;
 		oc->shadow_dirty = true;
@@ -341,6 +340,7 @@ static int configure_dispc(void)
 
 	/* Commit manager settings */
 	for (i = 0; i < num_mgrs; ++i) {
+		mgr = omap_dss_get_overlay_manager(i);
 		mc = &dss_cache.manager_cache[i];
 
 		if (!mc->dirty)
@@ -354,7 +354,7 @@ static int configure_dispc(void)
 			continue;
 		}
 
-		configure_manager(i);
+		dss_mgr_write_regs(mgr);
 		mc->dirty = false;
 		mc->shadow_dirty = true;
 		mgr_go[i] = true;
@@ -391,7 +391,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	mc = &dss_cache.manager_cache[mgr->id];
 
 	mc->do_manual_update = true;
-	configure_dispc();
+	dss_write_regs();
 	mc->do_manual_update = false;
 
 	list_for_each_entry(ovl, &mgr->overlays, list) {
@@ -465,7 +465,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 			mc->shadow_dirty = false;
 	}
 
-	r = configure_dispc();
+	r = dss_write_regs();
 	if (r == 1)
 		goto end;
 
@@ -623,7 +623,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 		if (!dss_cache.irq_enabled)
 			dss_register_vsync_isr();
 
-		configure_dispc();
+		dss_write_regs();
 	}
 
 	spin_unlock_irqrestore(&dss_cache.lock, flags);

From c10c6f042b6a5940c522a334a716d57b40f7dec9 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 11:56:57 +0200
Subject: [PATCH 047/108] OMAPDSS: APPLY: rename overlay_cache_data

overlay_cache_data is not a suitable name for the struct. It is more of
a private data for the overlay.

Rename the struct to ovl_priv_data, and add a function,
get_ovl_priv(ovl), to get a pointer to the data.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 99 ++++++++++++++++++---------------
 1 file changed, 53 insertions(+), 46 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 82d122b209a3..c73742e3b43d 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -54,7 +54,7 @@
  * +--------------------+
  */
 
-struct overlay_cache_data {
+struct ovl_priv_data {
 	/* If true, cache changed, but not written to shadow registers. Set
 	 * in apply(), cleared when registers written. */
 	bool dirty;
@@ -90,12 +90,17 @@ struct manager_cache_data {
 
 static struct {
 	spinlock_t lock;
-	struct overlay_cache_data overlay_cache[MAX_DSS_OVERLAYS];
+	struct ovl_priv_data ovl_priv_data_array[MAX_DSS_OVERLAYS];
 	struct manager_cache_data manager_cache[MAX_DSS_MANAGERS];
 
 	bool irq_enabled;
 } dss_cache;
 
+static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
+{
+	return &dss_cache.ovl_priv_data_array[ovl->id];
+}
+
 void dss_apply_init(void)
 {
 	spin_lock_init(&dss_cache.lock);
@@ -177,7 +182,7 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
-	struct overlay_cache_data *oc;
+	struct ovl_priv_data *op;
 	struct omap_dss_device *dssdev;
 	u32 irq;
 	int r;
@@ -196,15 +201,15 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 
 	irq = dispc_mgr_get_vsync_irq(ovl->manager->id);
 
-	oc = &dss_cache.overlay_cache[ovl->id];
+	op = get_ovl_priv(ovl);
 	i = 0;
 	while (1) {
 		unsigned long flags;
 		bool shadow_dirty, dirty;
 
 		spin_lock_irqsave(&dss_cache.lock, flags);
-		dirty = oc->dirty;
-		shadow_dirty = oc->shadow_dirty;
+		dirty = op->dirty;
+		shadow_dirty = op->shadow_dirty;
 		spin_unlock_irqrestore(&dss_cache.lock, flags);
 
 		if (!dirty && !shadow_dirty) {
@@ -239,17 +244,17 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 
 static int dss_ovl_write_regs(struct omap_overlay *ovl)
 {
-	struct overlay_cache_data *c;
+	struct ovl_priv_data *op;
 	struct omap_overlay_info *oi;
 	bool ilace, replication;
 	int r;
 
 	DSSDBGF("%d", ovl->id);
 
-	c = &dss_cache.overlay_cache[ovl->id];
-	oi = &c->info;
+	op = get_ovl_priv(ovl);
+	oi = &op->info;
 
-	if (!c->enabled) {
+	if (!op->enabled) {
 		dispc_ovl_enable(ovl->id, 0);
 		return 0;
 	}
@@ -258,7 +263,7 @@ static int dss_ovl_write_regs(struct omap_overlay *ovl)
 
 	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
 
-	dispc_ovl_set_channel_out(ovl->id, c->channel);
+	dispc_ovl_set_channel_out(ovl->id, op->channel);
 
 	r = dispc_ovl_setup(ovl->id, oi, ilace, replication);
 	if (r) {
@@ -268,7 +273,7 @@ static int dss_ovl_write_regs(struct omap_overlay *ovl)
 		return r;
 	}
 
-	dispc_ovl_set_fifo_threshold(ovl->id, c->fifo_low, c->fifo_high);
+	dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
 
 	dispc_ovl_enable(ovl->id, 1);
 
@@ -294,7 +299,7 @@ static int dss_write_regs(void)
 {
 	struct omap_overlay *ovl;
 	struct omap_overlay_manager *mgr;
-	struct overlay_cache_data *oc;
+	struct ovl_priv_data *op;
 	struct manager_cache_data *mc;
 	const int num_ovls = dss_feat_get_num_ovls();
 	const int num_mgrs = dss_feat_get_num_mgrs();
@@ -315,16 +320,16 @@ static int dss_write_regs(void)
 	/* Commit overlay settings */
 	for (i = 0; i < num_ovls; ++i) {
 		ovl = omap_dss_get_overlay(i);
-		oc = &dss_cache.overlay_cache[i];
-		mc = &dss_cache.manager_cache[oc->channel];
+		op = get_ovl_priv(ovl);
+		mc = &dss_cache.manager_cache[op->channel];
 
-		if (!oc->dirty)
+		if (!op->dirty)
 			continue;
 
 		if (mc->manual_update && !mc->do_manual_update)
 			continue;
 
-		if (mgr_busy[oc->channel]) {
+		if (mgr_busy[op->channel]) {
 			busy = true;
 			continue;
 		}
@@ -333,9 +338,9 @@ static int dss_write_regs(void)
 		if (r)
 			DSSERR("dss_ovl_write_regs %d failed\n", i);
 
-		oc->dirty = false;
-		oc->shadow_dirty = true;
-		mgr_go[oc->channel] = true;
+		op->dirty = false;
+		op->shadow_dirty = true;
+		mgr_go[op->channel] = true;
 	}
 
 	/* Commit manager settings */
@@ -385,7 +390,7 @@ static int dss_write_regs(void)
 void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	struct manager_cache_data *mc;
-	struct overlay_cache_data *oc;
+	struct ovl_priv_data *op;
 	struct omap_overlay *ovl;
 
 	mc = &dss_cache.manager_cache[mgr->id];
@@ -395,8 +400,8 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	mc->do_manual_update = false;
 
 	list_for_each_entry(ovl, &mgr->overlays, list) {
-		oc = &dss_cache.overlay_cache[ovl->id];
-		oc->shadow_dirty = false;
+		op = get_ovl_priv(ovl);
+		op->shadow_dirty = false;
 	}
 
 	mc = &dss_cache.manager_cache[mgr->id];
@@ -441,8 +446,9 @@ static void dss_unregister_vsync_isr(void)
 
 static void dss_apply_irq_handler(void *data, u32 mask)
 {
+	struct omap_overlay *ovl;
 	struct manager_cache_data *mc;
-	struct overlay_cache_data *oc;
+	struct ovl_priv_data *op;
 	const int num_ovls = dss_feat_get_num_ovls();
 	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i, r;
@@ -454,9 +460,10 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	spin_lock(&dss_cache.lock);
 
 	for (i = 0; i < num_ovls; ++i) {
-		oc = &dss_cache.overlay_cache[i];
-		if (!mgr_busy[oc->channel])
-			oc->shadow_dirty = false;
+		ovl = omap_dss_get_overlay(i);
+		op = get_ovl_priv(ovl);
+		if (!mgr_busy[op->channel])
+			op->shadow_dirty = false;
 	}
 
 	for (i = 0; i < num_mgrs; ++i) {
@@ -488,10 +495,10 @@ end:
 
 static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 {
-	struct overlay_cache_data *oc;
+	struct ovl_priv_data *op;
 	struct omap_dss_device *dssdev;
 
-	oc = &dss_cache.overlay_cache[ovl->id];
+	op = get_ovl_priv(ovl);
 
 	if (ovl->manager_changed) {
 		ovl->manager_changed = false;
@@ -499,9 +506,9 @@ static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 	}
 
 	if (!overlay_enabled(ovl)) {
-		if (oc->enabled) {
-			oc->enabled = false;
-			oc->dirty = true;
+		if (op->enabled) {
+			op->enabled = false;
+			op->dirty = true;
 		}
 		return 0;
 	}
@@ -512,20 +519,20 @@ static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 	dssdev = ovl->manager->device;
 
 	if (dss_check_overlay(ovl, dssdev)) {
-		if (oc->enabled) {
-			oc->enabled = false;
-			oc->dirty = true;
+		if (op->enabled) {
+			op->enabled = false;
+			op->dirty = true;
 		}
 		return -EINVAL;
 	}
 
 	ovl->info_dirty = false;
-	oc->dirty = true;
-	oc->info = ovl->info;
+	op->dirty = true;
+	op->info = ovl->info;
 
-	oc->channel = ovl->manager->id;
+	op->channel = ovl->manager->id;
 
-	oc->enabled = true;
+	op->enabled = true;
 
 	return 0;
 }
@@ -556,13 +563,13 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 
 static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
 {
-	struct overlay_cache_data *oc;
+	struct ovl_priv_data *op;
 	struct omap_dss_device *dssdev;
 	u32 size, burst_size;
 
-	oc = &dss_cache.overlay_cache[ovl->id];
+	op = get_ovl_priv(ovl);
 
-	if (!oc->enabled)
+	if (!op->enabled)
 		return;
 
 	dssdev = ovl->manager->device;
@@ -578,14 +585,14 @@ static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
 	case OMAP_DISPLAY_TYPE_VENC:
 	case OMAP_DISPLAY_TYPE_HDMI:
 		default_get_overlay_fifo_thresholds(ovl->id, size,
-				burst_size, &oc->fifo_low,
-				&oc->fifo_high);
+				burst_size, &op->fifo_low,
+				&op->fifo_high);
 		break;
 #ifdef CONFIG_OMAP2_DSS_DSI
 	case OMAP_DISPLAY_TYPE_DSI:
 		dsi_get_overlay_fifo_thresholds(ovl->id, size,
-				burst_size, &oc->fifo_low,
-				&oc->fifo_high);
+				burst_size, &op->fifo_low,
+				&op->fifo_high);
 		break;
 #endif
 	default:

From af3d64b2c674bc6246bb04654b484f34287fbbc3 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 12:02:03 +0200
Subject: [PATCH 048/108] OMAPDSS: APPLY: rename manager_cache_data

manager_cache_data is not a suitable name for the struct. It is more of
a private data for the manager.

Rename the struct to mgr_priv_data, and add a function,
get_mgr_priv(mgr), to get a pointer to the data.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 72 ++++++++++++++++++---------------
 1 file changed, 40 insertions(+), 32 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index c73742e3b43d..9c035e272e19 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -73,7 +73,7 @@ struct ovl_priv_data {
 	u32 fifo_high;
 };
 
-struct manager_cache_data {
+struct mgr_priv_data {
 	/* If true, cache changed, but not written to shadow registers. Set
 	 * in apply(), cleared when registers written. */
 	bool dirty;
@@ -91,7 +91,7 @@ struct manager_cache_data {
 static struct {
 	spinlock_t lock;
 	struct ovl_priv_data ovl_priv_data_array[MAX_DSS_OVERLAYS];
-	struct manager_cache_data manager_cache[MAX_DSS_MANAGERS];
+	struct mgr_priv_data mgr_priv_data_array[MAX_DSS_MANAGERS];
 
 	bool irq_enabled;
 } dss_cache;
@@ -101,6 +101,11 @@ static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
 	return &dss_cache.ovl_priv_data_array[ovl->id];
 }
 
+static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
+{
+	return &dss_cache.mgr_priv_data_array[mgr->id];
+}
+
 void dss_apply_init(void)
 {
 	spin_lock_init(&dss_cache.lock);
@@ -124,7 +129,7 @@ static int overlay_enabled(struct omap_overlay *ovl)
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
-	struct manager_cache_data *mc;
+	struct mgr_priv_data *mp;
 	u32 irq;
 	int r;
 	int i;
@@ -138,15 +143,15 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 
 	irq = dispc_mgr_get_vsync_irq(mgr->id);
 
-	mc = &dss_cache.manager_cache[mgr->id];
+	mp = get_mgr_priv(mgr);
 	i = 0;
 	while (1) {
 		unsigned long flags;
 		bool shadow_dirty, dirty;
 
 		spin_lock_irqsave(&dss_cache.lock, flags);
-		dirty = mc->dirty;
-		shadow_dirty = mc->shadow_dirty;
+		dirty = mp->dirty;
+		shadow_dirty = mp->shadow_dirty;
 		spin_unlock_irqrestore(&dss_cache.lock, flags);
 
 		if (!dirty && !shadow_dirty) {
@@ -282,11 +287,13 @@ static int dss_ovl_write_regs(struct omap_overlay *ovl)
 
 static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
 {
+	struct mgr_priv_data *mp;
 	struct omap_overlay_manager_info *mi;
 
 	DSSDBGF("%d", mgr->id);
 
-	mi = &dss_cache.manager_cache[mgr->id].info;
+	mp = get_mgr_priv(mgr);
+	mi = &mp->info;
 
 	dispc_mgr_setup(mgr->id, mi);
 }
@@ -300,7 +307,7 @@ static int dss_write_regs(void)
 	struct omap_overlay *ovl;
 	struct omap_overlay_manager *mgr;
 	struct ovl_priv_data *op;
-	struct manager_cache_data *mc;
+	struct mgr_priv_data *mp;
 	const int num_ovls = dss_feat_get_num_ovls();
 	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i;
@@ -321,12 +328,13 @@ static int dss_write_regs(void)
 	for (i = 0; i < num_ovls; ++i) {
 		ovl = omap_dss_get_overlay(i);
 		op = get_ovl_priv(ovl);
-		mc = &dss_cache.manager_cache[op->channel];
 
 		if (!op->dirty)
 			continue;
 
-		if (mc->manual_update && !mc->do_manual_update)
+		mp = get_mgr_priv(ovl->manager);
+
+		if (mp->manual_update && !mp->do_manual_update)
 			continue;
 
 		if (mgr_busy[op->channel]) {
@@ -346,12 +354,12 @@ static int dss_write_regs(void)
 	/* Commit manager settings */
 	for (i = 0; i < num_mgrs; ++i) {
 		mgr = omap_dss_get_overlay_manager(i);
-		mc = &dss_cache.manager_cache[i];
+		mp = get_mgr_priv(mgr);
 
-		if (!mc->dirty)
+		if (!mp->dirty)
 			continue;
 
-		if (mc->manual_update && !mc->do_manual_update)
+		if (mp->manual_update && !mp->do_manual_update)
 			continue;
 
 		if (mgr_busy[i]) {
@@ -360,14 +368,15 @@ static int dss_write_regs(void)
 		}
 
 		dss_mgr_write_regs(mgr);
-		mc->dirty = false;
-		mc->shadow_dirty = true;
+		mp->dirty = false;
+		mp->shadow_dirty = true;
 		mgr_go[i] = true;
 	}
 
 	/* set GO */
 	for (i = 0; i < num_mgrs; ++i) {
-		mc = &dss_cache.manager_cache[i];
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
 
 		if (!mgr_go[i])
 			continue;
@@ -375,7 +384,7 @@ static int dss_write_regs(void)
 		/* We don't need GO with manual update display. LCD iface will
 		 * always be turned off after frame, and new settings will be
 		 * taken in to use at next update */
-		if (!mc->manual_update)
+		if (!mp->manual_update)
 			dispc_mgr_go(i);
 	}
 
@@ -389,23 +398,20 @@ static int dss_write_regs(void)
 
 void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
-	struct manager_cache_data *mc;
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	struct ovl_priv_data *op;
 	struct omap_overlay *ovl;
 
-	mc = &dss_cache.manager_cache[mgr->id];
-
-	mc->do_manual_update = true;
+	mp->do_manual_update = true;
 	dss_write_regs();
-	mc->do_manual_update = false;
+	mp->do_manual_update = false;
 
 	list_for_each_entry(ovl, &mgr->overlays, list) {
 		op = get_ovl_priv(ovl);
 		op->shadow_dirty = false;
 	}
 
-	mc = &dss_cache.manager_cache[mgr->id];
-	mc->shadow_dirty = false;
+	mp->shadow_dirty = false;
 
 	dispc_mgr_enable(mgr->id, true);
 }
@@ -447,7 +453,8 @@ static void dss_unregister_vsync_isr(void)
 static void dss_apply_irq_handler(void *data, u32 mask)
 {
 	struct omap_overlay *ovl;
-	struct manager_cache_data *mc;
+	struct omap_overlay_manager *mgr;
+	struct mgr_priv_data *mp;
 	struct ovl_priv_data *op;
 	const int num_ovls = dss_feat_get_num_ovls();
 	const int num_mgrs = dss_feat_get_num_mgrs();
@@ -467,9 +474,10 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	}
 
 	for (i = 0; i < num_mgrs; ++i) {
-		mc = &dss_cache.manager_cache[i];
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
 		if (!mgr_busy[i])
-			mc->shadow_dirty = false;
+			mp->shadow_dirty = false;
 	}
 
 	r = dss_write_regs();
@@ -539,9 +547,9 @@ static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 
 static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 {
-	struct manager_cache_data *mc;
+	struct mgr_priv_data *mp;
 
-	mc = &dss_cache.manager_cache[mgr->id];
+	mp = get_mgr_priv(mgr);
 
 	if (mgr->device_changed) {
 		mgr->device_changed = false;
@@ -555,10 +563,10 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 		return;
 
 	mgr->info_dirty = false;
-	mc->dirty = true;
-	mc->info = mgr->info;
+	mp->dirty = true;
+	mp->info = mgr->info;
 
-	mc->manual_update = mgr_manual_update(mgr);
+	mp->manual_update = mgr_manual_update(mgr);
 }
 
 static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)

From 063fd701abba3b58c36b6043d5feacf0fdc76cbd Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 12:04:10 +0200
Subject: [PATCH 049/108] OMAPDSS: APPLY: move spinlock outside the struct

dss_cache struct contains a spinlock used to protect the struct. A more
logical place for the spinlock is outside the struct that it is
protecting. So move it there.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 9c035e272e19..a2c6c50430ee 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -89,13 +89,15 @@ struct mgr_priv_data {
 };
 
 static struct {
-	spinlock_t lock;
 	struct ovl_priv_data ovl_priv_data_array[MAX_DSS_OVERLAYS];
 	struct mgr_priv_data mgr_priv_data_array[MAX_DSS_MANAGERS];
 
 	bool irq_enabled;
 } dss_cache;
 
+/* protects dss_cache */
+static spinlock_t data_lock;
+
 static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
 {
 	return &dss_cache.ovl_priv_data_array[ovl->id];
@@ -108,7 +110,7 @@ static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
 
 void dss_apply_init(void)
 {
-	spin_lock_init(&dss_cache.lock);
+	spin_lock_init(&data_lock);
 }
 
 static bool ovl_manual_update(struct omap_overlay *ovl)
@@ -149,10 +151,10 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 		unsigned long flags;
 		bool shadow_dirty, dirty;
 
-		spin_lock_irqsave(&dss_cache.lock, flags);
+		spin_lock_irqsave(&data_lock, flags);
 		dirty = mp->dirty;
 		shadow_dirty = mp->shadow_dirty;
-		spin_unlock_irqrestore(&dss_cache.lock, flags);
+		spin_unlock_irqrestore(&data_lock, flags);
 
 		if (!dirty && !shadow_dirty) {
 			r = 0;
@@ -212,10 +214,10 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 		unsigned long flags;
 		bool shadow_dirty, dirty;
 
-		spin_lock_irqsave(&dss_cache.lock, flags);
+		spin_lock_irqsave(&data_lock, flags);
 		dirty = op->dirty;
 		shadow_dirty = op->shadow_dirty;
-		spin_unlock_irqrestore(&dss_cache.lock, flags);
+		spin_unlock_irqrestore(&data_lock, flags);
 
 		if (!dirty && !shadow_dirty) {
 			r = 0;
@@ -464,7 +466,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	for (i = 0; i < num_mgrs; i++)
 		mgr_busy[i] = dispc_mgr_go_busy(i);
 
-	spin_lock(&dss_cache.lock);
+	spin_lock(&data_lock);
 
 	for (i = 0; i < num_ovls; ++i) {
 		ovl = omap_dss_get_overlay(i);
@@ -498,7 +500,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	dss_unregister_vsync_isr();
 
 end:
-	spin_unlock(&dss_cache.lock);
+	spin_unlock(&data_lock);
 }
 
 static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
@@ -620,7 +622,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	if (r)
 		return r;
 
-	spin_lock_irqsave(&dss_cache.lock, flags);
+	spin_lock_irqsave(&data_lock, flags);
 
 	/* Configure overlays */
 	list_for_each_entry(ovl, &mgr->overlays, list)
@@ -641,7 +643,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 		dss_write_regs();
 	}
 
-	spin_unlock_irqrestore(&dss_cache.lock, flags);
+	spin_unlock_irqrestore(&data_lock, flags);
 
 	dispc_runtime_put();
 

From d09c7aa8989caf44e8754e8aa81ce80217a0e98a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 12:04:43 +0200
Subject: [PATCH 050/108] OMAPDSS: APPLY: rename dss_cache to dss_data

dss_cache struct contains private data used to manage dispc. "cache" is
not a good word for it, so rename it to dss_data.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index a2c6c50430ee..64f9997e5d01 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -38,7 +38,7 @@
  *        apply()
  *          v
  * +--------------------+
- * |     dss_cache      |
+ * |       info         |
  * +--------------------+
  *          v
  *      write_regs()
@@ -93,19 +93,19 @@ static struct {
 	struct mgr_priv_data mgr_priv_data_array[MAX_DSS_MANAGERS];
 
 	bool irq_enabled;
-} dss_cache;
+} dss_data;
 
-/* protects dss_cache */
+/* protects dss_data */
 static spinlock_t data_lock;
 
 static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
 {
-	return &dss_cache.ovl_priv_data_array[ovl->id];
+	return &dss_data.ovl_priv_data_array[ovl->id];
 }
 
 static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
 {
-	return &dss_cache.mgr_priv_data_array[mgr->id];
+	return &dss_data.mgr_priv_data_array[mgr->id];
 }
 
 void dss_apply_init(void)
@@ -433,7 +433,7 @@ static void dss_register_vsync_isr(void)
 	r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
 	WARN_ON(r);
 
-	dss_cache.irq_enabled = true;
+	dss_data.irq_enabled = true;
 }
 
 static void dss_unregister_vsync_isr(void)
@@ -449,7 +449,7 @@ static void dss_unregister_vsync_isr(void)
 	r = omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, mask);
 	WARN_ON(r);
 
-	dss_cache.irq_enabled = false;
+	dss_data.irq_enabled = false;
 }
 
 static void dss_apply_irq_handler(void *data, u32 mask)
@@ -637,7 +637,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 	r = 0;
 	if (mgr->enabled && !mgr_manual_update(mgr)) {
-		if (!dss_cache.irq_enabled)
+		if (!dss_data.irq_enabled)
 			dss_register_vsync_isr();
 
 		dss_write_regs();

From f77b30700e5c0a6b5220b3a964bf6c40d5e71416 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 12:11:11 +0200
Subject: [PATCH 051/108] OMAPDSS: APPLY: move ovl funcs to apply.c

apply.c will handle the management of dispc in the future patches. This
patch moves overlay related functions to apply.c so that they will have
access to the private data and functions of apply.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 84 +++++++++++++++++++++++++++
 drivers/video/omap2/dss/dss.h     |  8 +++
 drivers/video/omap2/dss/overlay.c | 96 ++-----------------------------
 3 files changed, 98 insertions(+), 90 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 64f9997e5d01..e42d1d3baae2 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -662,3 +662,87 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 	mgr->enabled = false;
 }
 
+int dss_ovl_set_info(struct omap_overlay *ovl,
+		struct omap_overlay_info *info)
+{
+	int r;
+	struct omap_overlay_info old_info;
+
+	old_info = ovl->info;
+	ovl->info = *info;
+
+	if (ovl->manager) {
+		r = dss_check_overlay(ovl, ovl->manager->device);
+		if (r) {
+			ovl->info = old_info;
+			return r;
+		}
+	}
+
+	ovl->info_dirty = true;
+
+	return 0;
+}
+
+void dss_ovl_get_info(struct omap_overlay *ovl,
+		struct omap_overlay_info *info)
+{
+	*info = ovl->info;
+}
+
+int dss_ovl_set_manager(struct omap_overlay *ovl,
+		struct omap_overlay_manager *mgr)
+{
+	if (!mgr)
+		return -EINVAL;
+
+	if (ovl->manager) {
+		DSSERR("overlay '%s' already has a manager '%s'\n",
+				ovl->name, ovl->manager->name);
+		return -EINVAL;
+	}
+
+	if (ovl->info.enabled) {
+		DSSERR("overlay has to be disabled to change the manager\n");
+		return -EINVAL;
+	}
+
+	ovl->manager = mgr;
+	list_add_tail(&ovl->list, &mgr->overlays);
+	ovl->manager_changed = true;
+
+	/* XXX: When there is an overlay on a DSI manual update display, and
+	 * the overlay is first disabled, then moved to tv, and enabled, we
+	 * seem to get SYNC_LOST_DIGIT error.
+	 *
+	 * Waiting doesn't seem to help, but updating the manual update display
+	 * after disabling the overlay seems to fix this. This hints that the
+	 * overlay is perhaps somehow tied to the LCD output until the output
+	 * is updated.
+	 *
+	 * Userspace workaround for this is to update the LCD after disabling
+	 * the overlay, but before moving the overlay to TV.
+	 */
+
+	return 0;
+}
+
+int dss_ovl_unset_manager(struct omap_overlay *ovl)
+{
+	if (!ovl->manager) {
+		DSSERR("failed to detach overlay: manager not set\n");
+		return -EINVAL;
+	}
+
+	if (ovl->info.enabled) {
+		DSSERR("overlay has to be disabled to unset the manager\n");
+		return -EINVAL;
+	}
+
+	ovl->manager = NULL;
+	list_del(&ovl->list);
+	ovl->manager_changed = true;
+
+	return 0;
+}
+
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 1535496677ba..163b9d9b7a44 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -172,6 +172,14 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr);
 void dss_mgr_enable(struct omap_overlay_manager *mgr);
 void dss_mgr_disable(struct omap_overlay_manager *mgr);
 
+int dss_ovl_set_info(struct omap_overlay *ovl,
+		struct omap_overlay_info *info);
+void dss_ovl_get_info(struct omap_overlay *ovl,
+		struct omap_overlay_info *info);
+int dss_ovl_set_manager(struct omap_overlay *ovl,
+		struct omap_overlay_manager *mgr);
+int dss_ovl_unset_manager(struct omap_overlay *ovl);
+
 /* display */
 int dss_suspend_all_devices(void);
 int dss_resume_all_devices(void);
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 3c940654ef91..00c01a395554 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -520,90 +520,6 @@ int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
 	return 0;
 }
 
-static int dss_ovl_set_overlay_info(struct omap_overlay *ovl,
-		struct omap_overlay_info *info)
-{
-	int r;
-	struct omap_overlay_info old_info;
-
-	old_info = ovl->info;
-	ovl->info = *info;
-
-	if (ovl->manager) {
-		r = dss_check_overlay(ovl, ovl->manager->device);
-		if (r) {
-			ovl->info = old_info;
-			return r;
-		}
-	}
-
-	ovl->info_dirty = true;
-
-	return 0;
-}
-
-static void dss_ovl_get_overlay_info(struct omap_overlay *ovl,
-		struct omap_overlay_info *info)
-{
-	*info = ovl->info;
-}
-
-static int omap_dss_set_manager(struct omap_overlay *ovl,
-		struct omap_overlay_manager *mgr)
-{
-	if (!mgr)
-		return -EINVAL;
-
-	if (ovl->manager) {
-		DSSERR("overlay '%s' already has a manager '%s'\n",
-				ovl->name, ovl->manager->name);
-		return -EINVAL;
-	}
-
-	if (ovl->info.enabled) {
-		DSSERR("overlay has to be disabled to change the manager\n");
-		return -EINVAL;
-	}
-
-	ovl->manager = mgr;
-	list_add_tail(&ovl->list, &mgr->overlays);
-	ovl->manager_changed = true;
-
-	/* XXX: When there is an overlay on a DSI manual update display, and
-	 * the overlay is first disabled, then moved to tv, and enabled, we
-	 * seem to get SYNC_LOST_DIGIT error.
-	 *
-	 * Waiting doesn't seem to help, but updating the manual update display
-	 * after disabling the overlay seems to fix this. This hints that the
-	 * overlay is perhaps somehow tied to the LCD output until the output
-	 * is updated.
-	 *
-	 * Userspace workaround for this is to update the LCD after disabling
-	 * the overlay, but before moving the overlay to TV.
-	 */
-
-	return 0;
-}
-
-static int omap_dss_unset_manager(struct omap_overlay *ovl)
-{
-	if (!ovl->manager) {
-		DSSERR("failed to detach overlay: manager not set\n");
-		return -EINVAL;
-	}
-
-	if (ovl->info.enabled) {
-		DSSERR("overlay has to be disabled to unset the manager\n");
-		return -EINVAL;
-	}
-
-	ovl->manager = NULL;
-	list_del(&ovl->list);
-	ovl->manager_changed = true;
-
-	return 0;
-}
-
 int omap_dss_get_num_overlays(void)
 {
 	return num_overlays;
@@ -663,10 +579,10 @@ void dss_init_overlays(struct platform_device *pdev)
 			break;
 		}
 
-		ovl->set_manager = &omap_dss_set_manager;
-		ovl->unset_manager = &omap_dss_unset_manager;
-		ovl->set_overlay_info = &dss_ovl_set_overlay_info;
-		ovl->get_overlay_info = &dss_ovl_get_overlay_info;
+		ovl->set_manager = &dss_ovl_set_manager;
+		ovl->unset_manager = &dss_ovl_unset_manager;
+		ovl->set_overlay_info = &dss_ovl_set_info;
+		ovl->get_overlay_info = &dss_ovl_get_info;
 		ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
 
 		ovl->caps = dss_feat_get_overlay_caps(ovl->id);
@@ -731,8 +647,8 @@ void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
 			ovl = omap_dss_get_overlay(i);
 			if (!ovl->manager || force) {
 				if (ovl->manager)
-					omap_dss_unset_manager(ovl);
-				omap_dss_set_manager(ovl, mgr);
+					ovl->unset_manager(ovl);
+				ovl->set_manager(ovl, mgr);
 			}
 		}
 

From eb70d739adf2266e744a784a1272f1c92a257b81 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 12:15:18 +0200
Subject: [PATCH 052/108] OMAPDSS: APPLY: move mgr funcs to apply.c

apply.c will handle the management of dispc in the future patches. This
patch moves overlay manager related functions to apply.c so that they
will have access to the private data and functions of apply.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 83 ++++++++++++++++++++++++++++
 drivers/video/omap2/dss/dss.h     |  9 +++
 drivers/video/omap2/dss/manager.c | 91 ++-----------------------------
 3 files changed, 97 insertions(+), 86 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index e42d1d3baae2..1aab0a340ee9 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -662,6 +662,89 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 	mgr->enabled = false;
 }
 
+int dss_mgr_set_info(struct omap_overlay_manager *mgr,
+		struct omap_overlay_manager_info *info)
+{
+	int r;
+	struct omap_overlay_manager_info old_info;
+
+	old_info = mgr->info;
+	mgr->info = *info;
+
+	r = dss_check_manager(mgr);
+	if (r) {
+		mgr->info = old_info;
+		return r;
+	}
+
+	mgr->info_dirty = true;
+
+	return 0;
+}
+
+void dss_mgr_get_info(struct omap_overlay_manager *mgr,
+		struct omap_overlay_manager_info *info)
+{
+	*info = mgr->info;
+}
+
+int dss_mgr_set_device(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev)
+{
+	int r;
+	struct omap_overlay *ovl;
+
+	if (dssdev->manager) {
+		DSSERR("display '%s' already has a manager '%s'\n",
+			       dssdev->name, dssdev->manager->name);
+		return -EINVAL;
+	}
+
+	if ((mgr->supported_displays & dssdev->type) == 0) {
+		DSSERR("display '%s' does not support manager '%s'\n",
+			       dssdev->name, mgr->name);
+		return -EINVAL;
+	}
+
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		if (!ovl->info.enabled)
+			continue;
+
+		r = dss_check_overlay(ovl, dssdev);
+		if (r)
+			return r;
+	}
+
+	dssdev->manager = mgr;
+	mgr->device = dssdev;
+	mgr->device_changed = true;
+
+	return 0;
+}
+
+int dss_mgr_unset_device(struct omap_overlay_manager *mgr)
+{
+	if (!mgr->device) {
+		DSSERR("failed to unset display, display not set.\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Don't allow currently enabled displays to have the overlay manager
+	 * pulled out from underneath them
+	 */
+	if (mgr->device->state != OMAP_DSS_DISPLAY_DISABLED)
+		return -EINVAL;
+
+	mgr->device->manager = NULL;
+	mgr->device = NULL;
+	mgr->device_changed = true;
+
+	return 0;
+}
+
+
+
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 163b9d9b7a44..41f69a10d359 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -169,8 +169,16 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr);
 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
 void dss_mgr_start_update(struct omap_overlay_manager *mgr);
 int omap_dss_mgr_apply(struct omap_overlay_manager *mgr);
+
 void dss_mgr_enable(struct omap_overlay_manager *mgr);
 void dss_mgr_disable(struct omap_overlay_manager *mgr);
+int dss_mgr_set_info(struct omap_overlay_manager *mgr,
+		struct omap_overlay_manager_info *info);
+void dss_mgr_get_info(struct omap_overlay_manager *mgr,
+		struct omap_overlay_manager_info *info);
+int dss_mgr_set_device(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev);
+int dss_mgr_unset_device(struct omap_overlay_manager *mgr);
 
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info);
@@ -198,6 +206,7 @@ void default_get_overlay_fifo_thresholds(enum omap_plane plane,
 /* manager */
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
+int dss_check_manager(struct omap_overlay_manager *mgr);
 
 /* overlay */
 void dss_init_overlays(struct platform_device *pdev);
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 62bcc384e7ae..ab0b61b716f1 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -467,61 +467,6 @@ static struct kobj_type manager_ktype = {
 	.default_attrs = manager_sysfs_attrs,
 };
 
-static int omap_dss_set_device(struct omap_overlay_manager *mgr,
-		struct omap_dss_device *dssdev)
-{
-	int r;
-	struct omap_overlay *ovl;
-
-	if (dssdev->manager) {
-		DSSERR("display '%s' already has a manager '%s'\n",
-			       dssdev->name, dssdev->manager->name);
-		return -EINVAL;
-	}
-
-	if ((mgr->supported_displays & dssdev->type) == 0) {
-		DSSERR("display '%s' does not support manager '%s'\n",
-			       dssdev->name, mgr->name);
-		return -EINVAL;
-	}
-
-	list_for_each_entry(ovl, &mgr->overlays, list) {
-		if (!ovl->info.enabled)
-			continue;
-
-		r = dss_check_overlay(ovl, dssdev);
-		if (r)
-			return r;
-	}
-
-	dssdev->manager = mgr;
-	mgr->device = dssdev;
-	mgr->device_changed = true;
-
-	return 0;
-}
-
-static int omap_dss_unset_device(struct omap_overlay_manager *mgr)
-{
-	if (!mgr->device) {
-		DSSERR("failed to unset display, display not set.\n");
-		return -EINVAL;
-	}
-
-	/*
-	 * Don't allow currently enabled displays to have the overlay manager
-	 * pulled out from underneath them
-	 */
-	if (mgr->device->state != OMAP_DSS_DISPLAY_DISABLED)
-		return -EINVAL;
-
-	mgr->device->manager = NULL;
-	mgr->device = NULL;
-	mgr->device_changed = true;
-
-	return 0;
-}
-
 static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
@@ -540,7 +485,7 @@ static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 	return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
 }
 
-static int dss_check_manager(struct omap_overlay_manager *mgr)
+int dss_check_manager(struct omap_overlay_manager *mgr)
 {
 	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
 		/*
@@ -557,32 +502,6 @@ static int dss_check_manager(struct omap_overlay_manager *mgr)
 	return 0;
 }
 
-static int omap_dss_mgr_set_info(struct omap_overlay_manager *mgr,
-		struct omap_overlay_manager_info *info)
-{
-	int r;
-	struct omap_overlay_manager_info old_info;
-
-	old_info = mgr->info;
-	mgr->info = *info;
-
-	r = dss_check_manager(mgr);
-	if (r) {
-		mgr->info = old_info;
-		return r;
-	}
-
-	mgr->info_dirty = true;
-
-	return 0;
-}
-
-static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr,
-		struct omap_overlay_manager_info *info)
-{
-	*info = mgr->info;
-}
-
 int dss_init_overlay_managers(struct platform_device *pdev)
 {
 	int i, r;
@@ -612,11 +531,11 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 			break;
 		}
 
-		mgr->set_device = &omap_dss_set_device;
-		mgr->unset_device = &omap_dss_unset_device;
+		mgr->set_device = &dss_mgr_set_device;
+		mgr->unset_device = &dss_mgr_unset_device;
 		mgr->apply = &omap_dss_mgr_apply;
-		mgr->set_manager_info = &omap_dss_mgr_set_info;
-		mgr->get_manager_info = &omap_dss_mgr_get_info;
+		mgr->set_manager_info = &dss_mgr_set_info;
+		mgr->get_manager_info = &dss_mgr_get_info;
 		mgr->wait_for_go = &dss_mgr_wait_for_go;
 		mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
 

From 5738b633136a41923b4ba75e6b1a160d08539c99 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 13:37:33 +0200
Subject: [PATCH 053/108] OMAPDSS: remove ovl/mgr check-code temporarily

DSS currently tries to check that the given overlay and overlay manager
settings are acceptable, but the code does not work quite properly.
Things may change between the check and the actual use of the settings.

Furthermore, the following patches will rewrite how settings are
configured and managed, and trying to keep the (broken) settings
checking working during the rewrite would be very difficult.

This patch removes the checking code, and a working version of checking
will be added back after the settings rewrite has been done.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 53 ++----------------
 drivers/video/omap2/dss/dss.h     |  2 -
 drivers/video/omap2/dss/manager.c | 17 ------
 drivers/video/omap2/dss/overlay.c | 90 -------------------------------
 4 files changed, 3 insertions(+), 159 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 1aab0a340ee9..b5a542fbd818 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -503,10 +503,9 @@ end:
 	spin_unlock(&data_lock);
 }
 
-static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
+static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op;
-	struct omap_dss_device *dssdev;
 
 	op = get_ovl_priv(ovl);
 
@@ -520,21 +519,11 @@ static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 			op->enabled = false;
 			op->dirty = true;
 		}
-		return 0;
+		return;
 	}
 
 	if (!ovl->info_dirty)
-		return 0;
-
-	dssdev = ovl->manager->device;
-
-	if (dss_check_overlay(ovl, dssdev)) {
-		if (op->enabled) {
-			op->enabled = false;
-			op->dirty = true;
-		}
-		return -EINVAL;
-	}
+		return;
 
 	ovl->info_dirty = false;
 	op->dirty = true;
@@ -543,8 +532,6 @@ static int omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 	op->channel = ovl->manager->id;
 
 	op->enabled = true;
-
-	return 0;
 }
 
 static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
@@ -665,18 +652,7 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
-	int r;
-	struct omap_overlay_manager_info old_info;
-
-	old_info = mgr->info;
 	mgr->info = *info;
-
-	r = dss_check_manager(mgr);
-	if (r) {
-		mgr->info = old_info;
-		return r;
-	}
-
 	mgr->info_dirty = true;
 
 	return 0;
@@ -692,7 +668,6 @@ int dss_mgr_set_device(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev)
 {
 	int r;
-	struct omap_overlay *ovl;
 
 	if (dssdev->manager) {
 		DSSERR("display '%s' already has a manager '%s'\n",
@@ -706,15 +681,6 @@ int dss_mgr_set_device(struct omap_overlay_manager *mgr,
 		return -EINVAL;
 	}
 
-	list_for_each_entry(ovl, &mgr->overlays, list) {
-		if (!ovl->info.enabled)
-			continue;
-
-		r = dss_check_overlay(ovl, dssdev);
-		if (r)
-			return r;
-	}
-
 	dssdev->manager = mgr;
 	mgr->device = dssdev;
 	mgr->device_changed = true;
@@ -748,20 +714,7 @@ int dss_mgr_unset_device(struct omap_overlay_manager *mgr)
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
-	int r;
-	struct omap_overlay_info old_info;
-
-	old_info = ovl->info;
 	ovl->info = *info;
-
-	if (ovl->manager) {
-		r = dss_check_overlay(ovl, ovl->manager->device);
-		if (r) {
-			ovl->info = old_info;
-			return r;
-		}
-	}
-
 	ovl->info_dirty = true;
 
 	return 0;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 41f69a10d359..a5493df14eee 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -206,12 +206,10 @@ void default_get_overlay_fifo_thresholds(enum omap_plane plane,
 /* manager */
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
-int dss_check_manager(struct omap_overlay_manager *mgr);
 
 /* overlay */
 void dss_init_overlays(struct platform_device *pdev);
 void dss_uninit_overlays(struct platform_device *pdev);
-int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev);
 void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
 void dss_recheck_connections(struct omap_dss_device *dssdev, bool force);
 
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index ab0b61b716f1..d7fd494908d8 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -485,23 +485,6 @@ static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 	return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
 }
 
-int dss_check_manager(struct omap_overlay_manager *mgr)
-{
-	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
-		/*
-		 * OMAP3 supports only graphics source transparency color key
-		 * and alpha blending simultaneously. See TRM 15.4.2.4.2.2
-		 * Alpha Mode
-		 */
-		if (mgr->info.partial_alpha_enabled && mgr->info.trans_enabled
-			&& mgr->info.trans_key_type !=
-				OMAP_DSS_COLOR_KEY_GFX_DST)
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
 int dss_init_overlay_managers(struct platform_device *pdev)
 {
 	int i, r;
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 00c01a395554..4dc6b92592d0 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -430,96 +430,6 @@ static struct kobj_type overlay_ktype = {
 	.default_attrs = overlay_sysfs_attrs,
 };
 
-/* Check if overlay parameters are compatible with display */
-int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
-{
-	struct omap_overlay_info *info;
-	u16 outw, outh;
-	u16 dw, dh;
-	int i;
-
-	if (!dssdev)
-		return 0;
-
-	if (!ovl->info.enabled)
-		return 0;
-
-	info = &ovl->info;
-
-	if (info->paddr == 0) {
-		DSSDBG("check_overlay failed: paddr 0\n");
-		return -EINVAL;
-	}
-
-	dssdev->driver->get_resolution(dssdev, &dw, &dh);
-
-	DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n",
-			ovl->id,
-			info->pos_x, info->pos_y,
-			info->width, info->height,
-			info->out_width, info->out_height,
-			dw, dh);
-
-	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
-		outw = info->width;
-		outh = info->height;
-	} else {
-		if (info->out_width == 0)
-			outw = info->width;
-		else
-			outw = info->out_width;
-
-		if (info->out_height == 0)
-			outh = info->height;
-		else
-			outh = info->out_height;
-	}
-
-	if (dw < info->pos_x + outw) {
-		DSSDBG("check_overlay failed 1: %d < %d + %d\n",
-				dw, info->pos_x, outw);
-		return -EINVAL;
-	}
-
-	if (dh < info->pos_y + outh) {
-		DSSDBG("check_overlay failed 2: %d < %d + %d\n",
-				dh, info->pos_y, outh);
-		return -EINVAL;
-	}
-
-	if ((ovl->supported_modes & info->color_mode) == 0) {
-		DSSERR("overlay doesn't support mode %d\n", info->color_mode);
-		return -EINVAL;
-	}
-
-	if (ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) {
-		if (info->zorder < 0 || info->zorder > 3) {
-			DSSERR("zorder out of range: %d\n",
-				info->zorder);
-			return -EINVAL;
-		}
-		/*
-		 * Check that zorder doesn't match with zorder of any other
-		 * overlay which is enabled and is also connected to the same
-		 * manager
-		 */
-		for (i = 0; i < omap_dss_get_num_overlays(); i++) {
-			struct omap_overlay *tmp_ovl = omap_dss_get_overlay(i);
-
-			if (tmp_ovl->id != ovl->id &&
-					tmp_ovl->manager == ovl->manager &&
-					tmp_ovl->info.enabled == true &&
-					tmp_ovl->info.zorder == info->zorder) {
-				DSSERR("%s and %s have same zorder: %d\n",
-					ovl->name, tmp_ovl->name, info->zorder);
-				return -EINVAL;
-			}
-		}
-	}
-
-	return 0;
-}
-
 int omap_dss_get_num_overlays(void)
 {
 	return num_overlays;

From 5558db3fdd52e3928d5eaabe363e1576dc5fe473 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 14:28:48 +0200
Subject: [PATCH 054/108] OMAPDSS: APPLY: add mutex

The functions in apply.c, called mostly via function pointers in overlay
and overlay_manager structs, will be divided into two groups. The first
group will not sleep and can be called from interrupts, and the second
group may sleep.

The idea is that the non-sleeping functions may only change certain
settings in overlays and managers, and those settings may only affect
the particular overlay/manager. For example, set the base address of the
overlay.

The blocking functions, however, will handle more complex configuration
changes. For example, when an overlay is enabled and fifo-merge feature
is used, we need to do the enable in multiple steps, waiting in between,
and the change affects multiple overlays and managers.

This patch adds the mutex which is used in the blocking functions to
have exclusive access to overlays and overlay managers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 71 ++++++++++++++++++++++++++++-----
 1 file changed, 62 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index b5a542fbd818..d9424bee0457 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -97,6 +97,8 @@ static struct {
 
 /* protects dss_data */
 static spinlock_t data_lock;
+/* lock for blocking functions */
+static DEFINE_MUTEX(apply_lock);
 
 static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
 {
@@ -639,14 +641,22 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 void dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
+	mutex_lock(&apply_lock);
+
 	dispc_mgr_enable(mgr->id, true);
 	mgr->enabled = true;
+
+	mutex_unlock(&apply_lock);
 }
 
 void dss_mgr_disable(struct omap_overlay_manager *mgr)
 {
+	mutex_lock(&apply_lock);
+
 	dispc_mgr_enable(mgr->id, false);
 	mgr->enabled = false;
+
+	mutex_unlock(&apply_lock);
 }
 
 int dss_mgr_set_info(struct omap_overlay_manager *mgr,
@@ -669,44 +679,65 @@ int dss_mgr_set_device(struct omap_overlay_manager *mgr,
 {
 	int r;
 
+	mutex_lock(&apply_lock);
+
 	if (dssdev->manager) {
 		DSSERR("display '%s' already has a manager '%s'\n",
 			       dssdev->name, dssdev->manager->name);
-		return -EINVAL;
+		r = -EINVAL;
+		goto err;
 	}
 
 	if ((mgr->supported_displays & dssdev->type) == 0) {
 		DSSERR("display '%s' does not support manager '%s'\n",
 			       dssdev->name, mgr->name);
-		return -EINVAL;
+		r = -EINVAL;
+		goto err;
 	}
 
 	dssdev->manager = mgr;
 	mgr->device = dssdev;
 	mgr->device_changed = true;
 
+	mutex_unlock(&apply_lock);
+
 	return 0;
+err:
+	mutex_unlock(&apply_lock);
+	return r;
 }
 
 int dss_mgr_unset_device(struct omap_overlay_manager *mgr)
 {
+	int r;
+
+	mutex_lock(&apply_lock);
+
 	if (!mgr->device) {
 		DSSERR("failed to unset display, display not set.\n");
-		return -EINVAL;
+		r = -EINVAL;
+		goto err;
 	}
 
 	/*
 	 * Don't allow currently enabled displays to have the overlay manager
 	 * pulled out from underneath them
 	 */
-	if (mgr->device->state != OMAP_DSS_DISPLAY_DISABLED)
-		return -EINVAL;
+	if (mgr->device->state != OMAP_DSS_DISPLAY_DISABLED) {
+		r = -EINVAL;
+		goto err;
+	}
 
 	mgr->device->manager = NULL;
 	mgr->device = NULL;
 	mgr->device_changed = true;
 
+	mutex_unlock(&apply_lock);
+
 	return 0;
+err:
+	mutex_unlock(&apply_lock);
+	return r;
 }
 
 
@@ -729,18 +760,24 @@ void dss_ovl_get_info(struct omap_overlay *ovl,
 int dss_ovl_set_manager(struct omap_overlay *ovl,
 		struct omap_overlay_manager *mgr)
 {
+	int r;
+
 	if (!mgr)
 		return -EINVAL;
 
+	mutex_lock(&apply_lock);
+
 	if (ovl->manager) {
 		DSSERR("overlay '%s' already has a manager '%s'\n",
 				ovl->name, ovl->manager->name);
-		return -EINVAL;
+		r = -EINVAL;
+		goto err;
 	}
 
 	if (ovl->info.enabled) {
 		DSSERR("overlay has to be disabled to change the manager\n");
-		return -EINVAL;
+		r = -EINVAL;
+		goto err;
 	}
 
 	ovl->manager = mgr;
@@ -760,25 +797,41 @@ int dss_ovl_set_manager(struct omap_overlay *ovl,
 	 * the overlay, but before moving the overlay to TV.
 	 */
 
+	mutex_unlock(&apply_lock);
+
 	return 0;
+err:
+	mutex_unlock(&apply_lock);
+	return r;
 }
 
 int dss_ovl_unset_manager(struct omap_overlay *ovl)
 {
+	int r;
+
+	mutex_lock(&apply_lock);
+
 	if (!ovl->manager) {
 		DSSERR("failed to detach overlay: manager not set\n");
-		return -EINVAL;
+		r = -EINVAL;
+		goto err;
 	}
 
 	if (ovl->info.enabled) {
 		DSSERR("overlay has to be disabled to unset the manager\n");
-		return -EINVAL;
+		r = -EINVAL;
+		goto err;
 	}
 
 	ovl->manager = NULL;
 	list_del(&ovl->list);
 	ovl->manager_changed = true;
 
+	mutex_unlock(&apply_lock);
+
 	return 0;
+err:
+	mutex_unlock(&apply_lock);
+	return r;
 }
 

From e0a2aa5b3d1a26969ba906447c816d44c018969d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 14:32:57 +0200
Subject: [PATCH 055/108] OMAPDSS: APPLY: add missing uses of spinlock

The functions in apply.c, called mostly via function pointers in overlay
and overlay_manager structs, will be divided into two groups. The other
group will not sleep and can be called from interrupts, and the other
group may sleep.

The idea is that the non-sleeping functions may only change certain
settings in overlays and managers, and those settings may only affect
the particular overlay/manager. For example, set the base address of the
overlay.

The blocking functions, however, will handle more complex configuration
changes. For example, when an overlay is enabled and fifo-merge feature
is used, we need to do the enable in multiple steps, waiting in between,
and the change affects multiple overlays and managers.

apply.c already contains a spinlock, which has been used to protect
(badly) the dss_data. This patch adds locks/unlocks of the spinlock to
the missing places, and the lock should now properly protect dss_data.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index d9424bee0457..eafa80846365 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -405,6 +405,9 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	struct ovl_priv_data *op;
 	struct omap_overlay *ovl;
+	unsigned long flags;
+
+	spin_lock_irqsave(&data_lock, flags);
 
 	mp->do_manual_update = true;
 	dss_write_regs();
@@ -418,6 +421,8 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	mp->shadow_dirty = false;
 
 	dispc_mgr_enable(mgr->id, true);
+
+	spin_unlock_irqrestore(&data_lock, flags);
 }
 
 static void dss_apply_irq_handler(void *data, u32 mask);
@@ -662,16 +667,28 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&data_lock, flags);
+
 	mgr->info = *info;
 	mgr->info_dirty = true;
 
+	spin_unlock_irqrestore(&data_lock, flags);
+
 	return 0;
 }
 
 void dss_mgr_get_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&data_lock, flags);
+
 	*info = mgr->info;
+
+	spin_unlock_irqrestore(&data_lock, flags);
 }
 
 int dss_mgr_set_device(struct omap_overlay_manager *mgr,
@@ -745,16 +762,28 @@ err:
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&data_lock, flags);
+
 	ovl->info = *info;
 	ovl->info_dirty = true;
 
+	spin_unlock_irqrestore(&data_lock, flags);
+
 	return 0;
 }
 
 void dss_ovl_get_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&data_lock, flags);
+
 	*info = ovl->info;
+
+	spin_unlock_irqrestore(&data_lock, flags);
 }
 
 int dss_ovl_set_manager(struct omap_overlay *ovl,

From 9a147a65de1ac89e506ef90413f41ebd96e03fd3 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 9 Nov 2011 15:30:11 +0200
Subject: [PATCH 056/108] OMAPDSS: DSI: call mgr_enable/disable for cmd mode
 displays

The current code uses dsi_video_mode_enable/disable functions to
enable/disable DISPC output for video mode displays. For command mode
displays we have no notion in the DISPC side of whether the panel is
enabled, except when a dss_mgr_start_update() call is made.

However, to properly maintain the DISPC state in apply.c, we need to
know if a manager used for a manual update display is currently in use.

This patch achieves that by changing dsi_video_mode_enable/disable to
dsi_enable/disable_video_output, which is called by both video and
command mode displays. For video mode displays it starts the actual
pixel stream, as it did before. For command mode displays it doesn't do
anything else than mark that the manager is currently in use.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/panel-taal.c |  6 ++
 drivers/video/omap2/dss/apply.c           |  6 +-
 drivers/video/omap2/dss/dsi.c             | 73 ++++++++++++-----------
 include/video/omapdss.h                   |  4 +-
 4 files changed, 51 insertions(+), 38 deletions(-)

diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c
index dd64bd13f4f8..00c5c615585f 100644
--- a/drivers/video/omap2/displays/panel-taal.c
+++ b/drivers/video/omap2/displays/panel-taal.c
@@ -1182,6 +1182,10 @@ static int taal_power_on(struct omap_dss_device *dssdev)
 	if (r)
 		goto err;
 
+	r = dsi_enable_video_output(dssdev, td->channel);
+	if (r)
+		goto err;
+
 	td->enabled = 1;
 
 	if (!td->intro_printed) {
@@ -1211,6 +1215,8 @@ static void taal_power_off(struct omap_dss_device *dssdev)
 	struct taal_data *td = dev_get_drvdata(&dssdev->dev);
 	int r;
 
+	dsi_disable_video_output(dssdev, td->channel);
+
 	r = taal_dcs_write_0(td, MIPI_DCS_SET_DISPLAY_OFF);
 	if (!r)
 		r = taal_sleep_in(td);
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index eafa80846365..936571b7aace 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -648,7 +648,8 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
 	mutex_lock(&apply_lock);
 
-	dispc_mgr_enable(mgr->id, true);
+	if (!mgr_manual_update(mgr))
+		dispc_mgr_enable(mgr->id, true);
 	mgr->enabled = true;
 
 	mutex_unlock(&apply_lock);
@@ -658,7 +659,8 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 {
 	mutex_lock(&apply_lock);
 
-	dispc_mgr_enable(mgr->id, false);
+	if (!mgr_manual_update(mgr))
+		dispc_mgr_enable(mgr->id, false);
 	mgr->enabled = false;
 
 	mutex_unlock(&apply_lock);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 9358afa2a77e..9cb2e827c001 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3973,65 +3973,70 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev)
 	}
 }
 
-int dsi_video_mode_enable(struct omap_dss_device *dssdev, int channel)
+int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 	int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
 	u8 data_type;
 	u16 word_count;
 
-	switch (dssdev->panel.dsi_pix_fmt) {
-	case OMAP_DSS_DSI_FMT_RGB888:
-		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
-		break;
-	case OMAP_DSS_DSI_FMT_RGB666:
-		data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
-		break;
-	case OMAP_DSS_DSI_FMT_RGB666_PACKED:
-		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
-		break;
-	case OMAP_DSS_DSI_FMT_RGB565:
-		data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
-		break;
-	default:
-		BUG();
-	};
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+		switch (dssdev->panel.dsi_pix_fmt) {
+		case OMAP_DSS_DSI_FMT_RGB888:
+			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
+			break;
+		case OMAP_DSS_DSI_FMT_RGB666:
+			data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
+			break;
+		case OMAP_DSS_DSI_FMT_RGB666_PACKED:
+			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
+			break;
+		case OMAP_DSS_DSI_FMT_RGB565:
+			data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
+			break;
+		default:
+			BUG();
+		};
 
-	dsi_if_enable(dsidev, false);
-	dsi_vc_enable(dsidev, channel, false);
+		dsi_if_enable(dsidev, false);
+		dsi_vc_enable(dsidev, channel, false);
 
-	/* MODE, 1 = video mode */
-	REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 1, 4, 4);
+		/* MODE, 1 = video mode */
+		REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 1, 4, 4);
 
-	word_count = DIV_ROUND_UP(dssdev->panel.timings.x_res * bpp, 8);
+		word_count = DIV_ROUND_UP(dssdev->panel.timings.x_res * bpp, 8);
 
-	dsi_vc_write_long_header(dsidev, channel, data_type, word_count, 0);
+		dsi_vc_write_long_header(dsidev, channel, data_type,
+				word_count, 0);
 
-	dsi_vc_enable(dsidev, channel, true);
-	dsi_if_enable(dsidev, true);
+		dsi_vc_enable(dsidev, channel, true);
+		dsi_if_enable(dsidev, true);
+	}
 
 	dss_mgr_enable(dssdev->manager);
 
 	return 0;
 }
-EXPORT_SYMBOL(dsi_video_mode_enable);
+EXPORT_SYMBOL(dsi_enable_video_output);
 
-void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel)
+void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel)
 {
 	struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
 
-	dsi_if_enable(dsidev, false);
-	dsi_vc_enable(dsidev, channel, false);
+	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+		dsi_if_enable(dsidev, false);
+		dsi_vc_enable(dsidev, channel, false);
 
-	/* MODE, 0 = command mode */
-	REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 0, 4, 4);
+		/* MODE, 0 = command mode */
+		REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 0, 4, 4);
 
-	dsi_vc_enable(dsidev, channel, true);
-	dsi_if_enable(dsidev, true);
+		dsi_vc_enable(dsidev, channel, true);
+		dsi_if_enable(dsidev, true);
+	}
 
 	dss_mgr_disable(dssdev->manager);
 }
-EXPORT_SYMBOL(dsi_video_mode_disable);
+EXPORT_SYMBOL(dsi_disable_video_output);
 
 static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
 		u16 w, u16 h)
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index eaeca89de152..25ef771b0a31 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -294,8 +294,8 @@ int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
 		u16 len);
 int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel);
 int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel);
-int dsi_video_mode_enable(struct omap_dss_device *dssdev, int channel);
-void dsi_video_mode_disable(struct omap_dss_device *dssdev, int channel);
+int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel);
+void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel);
 
 /* Board specific data */
 struct omap_dss_board_info {

From bf213523fe9708572a0b0a9149f7196a4f058564 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 14:43:53 +0200
Subject: [PATCH 057/108] OMAPDSS: APPLY: move mgr->enabled to mgr_priv_data

struct omap_overlay_manager contains "enabled"-field, used to track if
the manager is enabled or not. This field should be internal to apply.c.

This patch moves the field to mgr_priv_data, and applies the necessary
locking when accessing the field.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 26 +++++++++++++++++++++++---
 include/video/omapdss.h         |  2 --
 2 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 936571b7aace..5bde08f19920 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -86,6 +86,9 @@ struct mgr_priv_data {
 
 	bool manual_update;
 	bool do_manual_update;
+
+	/* If true, a display is enabled using this manager */
+	bool enabled;
 };
 
 static struct {
@@ -609,6 +612,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	int r;
 	unsigned long flags;
 	struct omap_overlay *ovl;
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 
 	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
 
@@ -630,7 +634,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 		omap_dss_mgr_apply_ovl_fifos(ovl);
 
 	r = 0;
-	if (mgr->enabled && !mgr_manual_update(mgr)) {
+	if (mp->enabled && !mgr_manual_update(mgr)) {
 		if (!dss_data.irq_enabled)
 			dss_register_vsync_isr();
 
@@ -646,22 +650,38 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 void dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
+	unsigned long flags;
+
 	mutex_lock(&apply_lock);
 
 	if (!mgr_manual_update(mgr))
 		dispc_mgr_enable(mgr->id, true);
-	mgr->enabled = true;
+
+	spin_lock_irqsave(&data_lock, flags);
+
+	mp->enabled = true;
+
+	spin_unlock_irqrestore(&data_lock, flags);
 
 	mutex_unlock(&apply_lock);
 }
 
 void dss_mgr_disable(struct omap_overlay_manager *mgr)
 {
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
+	unsigned long flags;
+
 	mutex_lock(&apply_lock);
 
 	if (!mgr_manual_update(mgr))
 		dispc_mgr_enable(mgr->id, false);
-	mgr->enabled = false;
+
+	spin_lock_irqsave(&data_lock, flags);
+
+	mp->enabled = false;
+
+	spin_unlock_irqrestore(&data_lock, flags);
 
 	mutex_unlock(&apply_lock);
 }
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 25ef771b0a31..6e3e7a716838 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -430,8 +430,6 @@ struct omap_overlay_manager {
 	struct omap_dss_device *device;
 	struct omap_overlay_manager_info info;
 
-	bool enabled;
-
 	bool device_changed;
 	/* if true, info has been changed but not applied() yet */
 	bool info_dirty;

From 43a972d96b6ea2b9e3d6b55b9724c9f61d802c68 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 15:04:25 +0200
Subject: [PATCH 058/108] OMAPDSS: APPLY: add busy field to mgr_priv_data

Add a new field to mgr_priv data, "busy", which is used to track the
status of GO bit with the manager. As manual update displays never use
the GO bit, the field is always false for managers used for manual
update displays.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 55 +++++++++++++++++++++------------
 1 file changed, 36 insertions(+), 19 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 5bde08f19920..107a4ae6e5ac 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -87,6 +87,10 @@ struct mgr_priv_data {
 	bool manual_update;
 	bool do_manual_update;
 
+	/* If true, GO bit is up and shadow registers cannot be written.
+	 * Never true for manual update displays */
+	bool busy;
+
 	/* If true, a display is enabled using this manager */
 	bool enabled;
 };
@@ -319,18 +323,12 @@ static int dss_write_regs(void)
 	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i;
 	int r;
-	bool mgr_busy[MAX_DSS_MANAGERS];
-	bool mgr_go[MAX_DSS_MANAGERS];
+	bool mgr_go[MAX_DSS_MANAGERS] = { false };
 	bool busy;
 
 	r = 0;
 	busy = false;
 
-	for (i = 0; i < num_mgrs; i++) {
-		mgr_busy[i] = dispc_mgr_go_busy(i);
-		mgr_go[i] = false;
-	}
-
 	/* Commit overlay settings */
 	for (i = 0; i < num_ovls; ++i) {
 		ovl = omap_dss_get_overlay(i);
@@ -344,7 +342,7 @@ static int dss_write_regs(void)
 		if (mp->manual_update && !mp->do_manual_update)
 			continue;
 
-		if (mgr_busy[op->channel]) {
+		if (mp->busy) {
 			busy = true;
 			continue;
 		}
@@ -369,7 +367,7 @@ static int dss_write_regs(void)
 		if (mp->manual_update && !mp->do_manual_update)
 			continue;
 
-		if (mgr_busy[i]) {
+		if (mp->busy) {
 			busy = true;
 			continue;
 		}
@@ -391,8 +389,10 @@ static int dss_write_regs(void)
 		/* We don't need GO with manual update display. LCD iface will
 		 * always be turned off after frame, and new settings will be
 		 * taken in to use at next update */
-		if (!mp->manual_update)
+		if (!mp->manual_update) {
+			mp->busy = true;
 			dispc_mgr_go(i);
+		}
 	}
 
 	if (busy)
@@ -471,24 +471,34 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	const int num_ovls = dss_feat_get_num_ovls();
 	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i, r;
-	bool mgr_busy[MAX_DSS_MANAGERS];
-
-	for (i = 0; i < num_mgrs; i++)
-		mgr_busy[i] = dispc_mgr_go_busy(i);
 
 	spin_lock(&data_lock);
 
+	for (i = 0; i < num_mgrs; i++) {
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
+
+		mp->busy = dispc_mgr_go_busy(i);
+	}
+
 	for (i = 0; i < num_ovls; ++i) {
 		ovl = omap_dss_get_overlay(i);
 		op = get_ovl_priv(ovl);
-		if (!mgr_busy[op->channel])
+
+		if (!op->enabled)
+			continue;
+
+		mp = get_mgr_priv(ovl->manager);
+
+		if (!mp->busy)
 			op->shadow_dirty = false;
 	}
 
 	for (i = 0; i < num_mgrs; ++i) {
 		mgr = omap_dss_get_overlay_manager(i);
 		mp = get_mgr_priv(mgr);
-		if (!mgr_busy[i])
+
+		if (!mp->busy)
 			mp->shadow_dirty = false;
 	}
 
@@ -497,13 +507,20 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 		goto end;
 
 	/* re-read busy flags */
-	for (i = 0; i < num_mgrs; i++)
-		mgr_busy[i] = dispc_mgr_go_busy(i);
+	for (i = 0; i < num_mgrs; i++) {
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
+
+		mp->busy = dispc_mgr_go_busy(i);
+	}
 
 	/* keep running as long as there are busy managers, so that
 	 * we can collect overlay-applied information */
 	for (i = 0; i < num_mgrs; ++i) {
-		if (mgr_busy[i])
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
+
+		if (mp->busy)
 			goto end;
 	}
 

From aaa874a985158383c4b394c687c716ef26288741 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 16:37:53 +0200
Subject: [PATCH 059/108] OMAPDSS: APPLY: rewrite overlay enable/disable

Overlays are currently enabled and disabled with a boolean in the struct
omap_overlay_info. The overlay info is set with ovl->set_overlay_info(),
and made into use with mgr->apply().

This doesn't work properly, as the enable/disable status may affect also
other overlays, for example when using fifo-merge. Thus the enabling and
disabling of the overlay needs to be done outside the normal overlay
configuration.

This patch achieves that by doing the following things:

1) Add function pointers to struct omap_overlay: enable(), disable() and
is_enabled(). These are used to do the obvious. The functions may block.

2) Move the "enabled" field from struct omap_overlay to ovl_priv_data.

3) Add a new route for settings to be applied to the HW, called
"extra_info". The status of the normal info and extra_info are tracked
separately.

The point here is to allow the normal info to be changed and
applied in non-blocking matter, whereas the extra_info can only be
changed when holding the mutex. This makes it possible to, for example,
set the overlay enable flag, apply it, and wait until the HW has taken
the flag into use.

This is not possible if the enable flag would be in the normal info, as
a new value for the flag could be set at any time from the users of
omapdss.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/media/video/omap/omap_vout.c      |  33 ++---
 drivers/video/omap2/dss/apply.c           | 163 ++++++++++++++++++----
 drivers/video/omap2/dss/dss.h             |   3 +
 drivers/video/omap2/dss/overlay.c         |  20 ++-
 drivers/video/omap2/omapfb/omapfb-ioctl.c |  30 ++--
 drivers/video/omap2/omapfb/omapfb-main.c  |   2 +
 drivers/video/omap2/omapfb/omapfb-sysfs.c |   4 +-
 drivers/video/omap2/omapfb/omapfb.h       |  11 +-
 include/video/omapdss.h                   |   6 +-
 9 files changed, 190 insertions(+), 82 deletions(-)

diff --git a/drivers/media/video/omap/omap_vout.c b/drivers/media/video/omap/omap_vout.c
index 9c5c19f142de..27c19fe78686 100644
--- a/drivers/media/video/omap/omap_vout.c
+++ b/drivers/media/video/omap/omap_vout.c
@@ -423,7 +423,7 @@ static int omapvid_setup_overlay(struct omap_vout_device *vout,
 		"%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n"
 		"rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
 		"out_height=%d rotation_type=%d screen_width=%d\n",
-		__func__, info.enabled, info.paddr, info.width, info.height,
+		__func__, ovl->is_enabled(ovl), info.paddr, info.width, info.height,
 		info.color_mode, info.rotation, info.mirror, info.pos_x,
 		info.pos_y, info.out_width, info.out_height, info.rotation_type,
 		info.screen_width);
@@ -942,12 +942,8 @@ static int omap_vout_release(struct file *file)
 	/* Disable all the overlay managers connected with this interface */
 	for (i = 0; i < ovid->num_overlays; i++) {
 		struct omap_overlay *ovl = ovid->overlays[i];
-		if (ovl->manager && ovl->manager->device) {
-			struct omap_overlay_info info;
-			ovl->get_overlay_info(ovl, &info);
-			info.enabled = 0;
-			ovl->set_overlay_info(ovl, &info);
-		}
+		if (ovl->manager && ovl->manager->device)
+			ovl->disable(ovl);
 	}
 	/* Turn off the pipeline */
 	ret = omapvid_apply_changes(vout);
@@ -1667,7 +1663,6 @@ static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
 		if (ovl->manager && ovl->manager->device) {
 			struct omap_overlay_info info;
 			ovl->get_overlay_info(ovl, &info);
-			info.enabled = 1;
 			info.paddr = addr;
 			if (ovl->set_overlay_info(ovl, &info)) {
 				ret = -EINVAL;
@@ -1686,6 +1681,16 @@ static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
 	if (ret)
 		v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
 
+	for (j = 0; j < ovid->num_overlays; j++) {
+		struct omap_overlay *ovl = ovid->overlays[j];
+
+		if (ovl->manager && ovl->manager->device) {
+			ret = ovl->enable(ovl);
+			if (ret)
+				goto streamon_err1;
+		}
+	}
+
 	ret = 0;
 
 streamon_err1:
@@ -1715,16 +1720,8 @@ static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
 	for (j = 0; j < ovid->num_overlays; j++) {
 		struct omap_overlay *ovl = ovid->overlays[j];
 
-		if (ovl->manager && ovl->manager->device) {
-			struct omap_overlay_info info;
-
-			ovl->get_overlay_info(ovl, &info);
-			info.enabled = 0;
-			ret = ovl->set_overlay_info(ovl, &info);
-			if (ret)
-				v4l2_err(&vout->vid_dev->v4l2_dev,
-				"failed to update overlay info in streamoff\n");
-		}
+		if (ovl->manager && ovl->manager->device)
+			ovl->disable(ovl);
 	}
 
 	/* Turn of the pipeline */
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 107a4ae6e5ac..eb28a7f178dd 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -63,14 +63,18 @@ struct ovl_priv_data {
 	 * VSYNC/EVSYNC */
 	bool shadow_dirty;
 
-	bool enabled;
-
 	struct omap_overlay_info info;
 
 	enum omap_channel channel;
 
 	u32 fifo_low;
 	u32 fifo_high;
+
+	bool extra_info_dirty;
+	bool shadow_extra_info_dirty;
+
+	bool enabled;
+
 };
 
 struct mgr_priv_data {
@@ -132,11 +136,6 @@ static bool mgr_manual_update(struct omap_overlay_manager *mgr)
 	return mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
 }
 
-static int overlay_enabled(struct omap_overlay *ovl)
-{
-	return ovl->info.enabled && ovl->manager && ovl->manager->device;
-}
-
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
@@ -270,10 +269,8 @@ static int dss_ovl_write_regs(struct omap_overlay *ovl)
 	op = get_ovl_priv(ovl);
 	oi = &op->info;
 
-	if (!op->enabled) {
-		dispc_ovl_enable(ovl->id, 0);
+	if (!op->enabled)
 		return 0;
-	}
 
 	replication = dss_use_replication(ovl->manager->device, oi->color_mode);
 
@@ -291,11 +288,21 @@ static int dss_ovl_write_regs(struct omap_overlay *ovl)
 
 	dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
 
-	dispc_ovl_enable(ovl->id, 1);
-
 	return 0;
 }
 
+static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
+{
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+
+	DSSDBGF("%d", ovl->id);
+
+	/* note: write also when op->enabled == false, so that the ovl gets
+	 * disabled */
+
+	dispc_ovl_enable(ovl->id, op->enabled);
+}
+
 static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp;
@@ -356,6 +363,30 @@ static int dss_write_regs(void)
 		mgr_go[op->channel] = true;
 	}
 
+	for (i = 0; i < num_ovls; ++i) {
+		ovl = omap_dss_get_overlay(i);
+		op = get_ovl_priv(ovl);
+
+		if (!op->extra_info_dirty)
+			continue;
+
+		mp = get_mgr_priv(ovl->manager);
+
+		if (mp->manual_update && !mp->do_manual_update)
+			continue;
+
+		if (mp->busy) {
+			busy = true;
+			continue;
+		}
+
+		dss_ovl_write_regs_extra(ovl);
+
+		op->extra_info_dirty = false;
+		op->shadow_extra_info_dirty = true;
+		mgr_go[op->channel] = true;
+	}
+
 	/* Commit manager settings */
 	for (i = 0; i < num_mgrs; ++i) {
 		mgr = omap_dss_get_overlay_manager(i);
@@ -419,6 +450,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 	list_for_each_entry(ovl, &mgr->overlays, list) {
 		op = get_ovl_priv(ovl);
 		op->shadow_dirty = false;
+		op->shadow_extra_info_dirty = false;
 	}
 
 	mp->shadow_dirty = false;
@@ -490,8 +522,10 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 
 		mp = get_mgr_priv(ovl->manager);
 
-		if (!mp->busy)
+		if (!mp->busy) {
 			op->shadow_dirty = false;
+			op->shadow_extra_info_dirty = false;
+		}
 	}
 
 	for (i = 0; i < num_mgrs; ++i) {
@@ -541,14 +575,6 @@ static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 		ovl->info_dirty  = true;
 	}
 
-	if (!overlay_enabled(ovl)) {
-		if (op->enabled) {
-			op->enabled = false;
-			op->dirty = true;
-		}
-		return;
-	}
-
 	if (!ovl->info_dirty)
 		return;
 
@@ -557,8 +583,6 @@ static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 	op->info = ovl->info;
 
 	op->channel = ovl->manager->id;
-
-	op->enabled = true;
 }
 
 static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
@@ -593,9 +617,6 @@ static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
 
 	op = get_ovl_priv(ovl);
 
-	if (!op->enabled)
-		return;
-
 	dssdev = ovl->manager->device;
 
 	size = dispc_ovl_get_fifo_size(ovl->id);
@@ -828,6 +849,8 @@ void dss_ovl_get_info(struct omap_overlay *ovl,
 int dss_ovl_set_manager(struct omap_overlay *ovl,
 		struct omap_overlay_manager *mgr)
 {
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+	unsigned long flags;
 	int r;
 
 	if (!mgr)
@@ -842,7 +865,10 @@ int dss_ovl_set_manager(struct omap_overlay *ovl,
 		goto err;
 	}
 
-	if (ovl->info.enabled) {
+	spin_lock_irqsave(&data_lock, flags);
+
+	if (op->enabled) {
+		spin_unlock_irqrestore(&data_lock, flags);
 		DSSERR("overlay has to be disabled to change the manager\n");
 		r = -EINVAL;
 		goto err;
@@ -852,6 +878,8 @@ int dss_ovl_set_manager(struct omap_overlay *ovl,
 	list_add_tail(&ovl->list, &mgr->overlays);
 	ovl->manager_changed = true;
 
+	spin_unlock_irqrestore(&data_lock, flags);
+
 	/* XXX: When there is an overlay on a DSI manual update display, and
 	 * the overlay is first disabled, then moved to tv, and enabled, we
 	 * seem to get SYNC_LOST_DIGIT error.
@@ -875,6 +903,8 @@ err:
 
 int dss_ovl_unset_manager(struct omap_overlay *ovl)
 {
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+	unsigned long flags;
 	int r;
 
 	mutex_lock(&apply_lock);
@@ -885,7 +915,10 @@ int dss_ovl_unset_manager(struct omap_overlay *ovl)
 		goto err;
 	}
 
-	if (ovl->info.enabled) {
+	spin_lock_irqsave(&data_lock, flags);
+
+	if (op->enabled) {
+		spin_unlock_irqrestore(&data_lock, flags);
 		DSSERR("overlay has to be disabled to unset the manager\n");
 		r = -EINVAL;
 		goto err;
@@ -895,6 +928,8 @@ int dss_ovl_unset_manager(struct omap_overlay *ovl)
 	list_del(&ovl->list);
 	ovl->manager_changed = true;
 
+	spin_unlock_irqrestore(&data_lock, flags);
+
 	mutex_unlock(&apply_lock);
 
 	return 0;
@@ -903,3 +938,75 @@ err:
 	return r;
 }
 
+bool dss_ovl_is_enabled(struct omap_overlay *ovl)
+{
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+	unsigned long flags;
+	bool e;
+
+	spin_lock_irqsave(&data_lock, flags);
+
+	e = op->enabled;
+
+	spin_unlock_irqrestore(&data_lock, flags);
+
+	return e;
+}
+
+int dss_ovl_enable(struct omap_overlay *ovl)
+{
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+	unsigned long flags;
+	int r;
+
+	mutex_lock(&apply_lock);
+
+	if (ovl->manager == NULL || ovl->manager->device == NULL) {
+		r = -EINVAL;
+		goto err;
+	}
+
+	spin_lock_irqsave(&data_lock, flags);
+
+	op->enabled = true;
+	op->extra_info_dirty = true;
+
+	spin_unlock_irqrestore(&data_lock, flags);
+
+	mutex_unlock(&apply_lock);
+
+	return 0;
+err:
+	mutex_unlock(&apply_lock);
+	return r;
+}
+
+int dss_ovl_disable(struct omap_overlay *ovl)
+{
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+	unsigned long flags;
+	int r;
+
+	mutex_lock(&apply_lock);
+
+	if (ovl->manager == NULL || ovl->manager->device == NULL) {
+		r = -EINVAL;
+		goto err;
+	}
+
+	spin_lock_irqsave(&data_lock, flags);
+
+	op->enabled = false;
+	op->extra_info_dirty = true;
+
+	spin_unlock_irqrestore(&data_lock, flags);
+
+	mutex_unlock(&apply_lock);
+
+	return 0;
+
+err:
+	mutex_unlock(&apply_lock);
+	return r;
+}
+
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index a5493df14eee..7aac8a3367bc 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -180,6 +180,9 @@ int dss_mgr_set_device(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev);
 int dss_mgr_unset_device(struct omap_overlay_manager *mgr);
 
+bool dss_ovl_is_enabled(struct omap_overlay *ovl);
+int dss_ovl_enable(struct omap_overlay *ovl);
+int dss_ovl_disable(struct omap_overlay *ovl);
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info);
 void dss_ovl_get_info(struct omap_overlay *ovl,
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 4dc6b92592d0..7d7cdf62059b 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -205,7 +205,7 @@ static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
 
 static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled);
+	return snprintf(buf, PAGE_SIZE, "%d\n", ovl->is_enabled(ovl));
 }
 
 static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
@@ -213,26 +213,19 @@ static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
 {
 	int r;
 	bool enable;
-	struct omap_overlay_info info;
-
-	ovl->get_overlay_info(ovl, &info);
 
 	r = strtobool(buf, &enable);
 	if (r)
 		return r;
 
-	info.enabled = enable;
+	if (enable)
+		r = ovl->enable(ovl);
+	else
+		r = ovl->disable(ovl);
 
-	r = ovl->set_overlay_info(ovl, &info);
 	if (r)
 		return r;
 
-	if (ovl->manager) {
-		r = ovl->manager->apply(ovl->manager);
-		if (r)
-			return r;
-	}
-
 	return size;
 }
 
@@ -489,6 +482,9 @@ void dss_init_overlays(struct platform_device *pdev)
 			break;
 		}
 
+		ovl->is_enabled = &dss_ovl_is_enabled;
+		ovl->enable = &dss_ovl_enable;
+		ovl->disable = &dss_ovl_disable;
 		ovl->set_manager = &dss_ovl_set_manager;
 		ovl->unset_manager = &dss_ovl_unset_manager;
 		ovl->set_overlay_info = &dss_ovl_set_info;
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index df7bcce5b107..562b5cc07609 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -111,28 +111,22 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 		set_fb_fix(fbi);
 	}
 
-	if (pi->enabled) {
-		struct omap_overlay_info info;
+	if (!pi->enabled) {
+		r = ovl->disable(ovl);
+		if (r)
+			goto undo;
+	}
 
+	if (pi->enabled) {
 		r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
 			pi->out_width, pi->out_height);
 		if (r)
 			goto undo;
-
-		ovl->get_overlay_info(ovl, &info);
-
-		if (!info.enabled) {
-			info.enabled = pi->enabled;
-			r = ovl->set_overlay_info(ovl, &info);
-			if (r)
-				goto undo;
-		}
 	} else {
 		struct omap_overlay_info info;
 
 		ovl->get_overlay_info(ovl, &info);
 
-		info.enabled = pi->enabled;
 		info.pos_x = pi->pos_x;
 		info.pos_y = pi->pos_y;
 		info.out_width = pi->out_width;
@@ -146,6 +140,12 @@ static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 	if (ovl->manager)
 		ovl->manager->apply(ovl->manager);
 
+	if (pi->enabled) {
+		r = ovl->enable(ovl);
+		if (r)
+			goto undo;
+	}
+
 	/* Release the locks in a specific order to keep lockdep happy */
 	if (old_rg->id > new_rg->id) {
 		omapfb_put_mem_region(old_rg);
@@ -196,7 +196,7 @@ static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 
 		pi->pos_x = ovli->pos_x;
 		pi->pos_y = ovli->pos_y;
-		pi->enabled = ovli->enabled;
+		pi->enabled = ovl->is_enabled(ovl);
 		pi->channel_out = 0; /* xxx */
 		pi->mirror = 0;
 		pi->mem_idx = get_mem_idx(ofbi);
@@ -238,7 +238,9 @@ static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
 			continue;
 
 		for (j = 0; j < ofbi2->num_overlays; j++) {
-			if (ofbi2->overlays[j]->info.enabled) {
+			struct omap_overlay *ovl;
+			ovl = ofbi2->overlays[j];
+			if (ovl->is_enabled(ovl)) {
 				r = -EBUSY;
 				goto out;
 			}
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 70aa47de7146..91b49b530695 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2067,6 +2067,8 @@ static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
 		if (ofbi->num_overlays > 0) {
 			struct omap_overlay *ovl = ofbi->overlays[0];
 
+			ovl->manager->apply(ovl->manager);
+
 			r = omapfb_overlay_enable(ovl, 1);
 
 			if (r) {
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
index 1694d5148f32..e8d8cc76a435 100644
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c
@@ -473,7 +473,9 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
 			continue;
 
 		for (j = 0; j < ofbi2->num_overlays; j++) {
-			if (ofbi2->overlays[j]->info.enabled) {
+			struct omap_overlay *ovl;
+			ovl = ofbi2->overlays[j];
+			if (ovl->is_enabled(ovl)) {
 				r = -EBUSY;
 				goto out;
 			}
diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
index fdf0edeccf4e..b03fb1365ce2 100644
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ b/drivers/video/omap2/omapfb/omapfb.h
@@ -181,13 +181,10 @@ static inline void omapfb_unlock(struct omapfb2_device *fbdev)
 static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
 		int enable)
 {
-	struct omap_overlay_info info;
-
-	ovl->get_overlay_info(ovl, &info);
-	if (info.enabled == enable)
-		return 0;
-	info.enabled = enable;
-	return ovl->set_overlay_info(ovl, &info);
+	if (enable)
+		return ovl->enable(ovl);
+	else
+		return ovl->disable(ovl);
 }
 
 static inline struct omapfb2_mem_region *
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 6e3e7a716838..9d01ff66659f 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -352,8 +352,6 @@ struct omap_dss_cpr_coefs {
 };
 
 struct omap_overlay_info {
-	bool enabled;
-
 	u32 paddr;
 	u32 p_uv_addr;  /* for NV12 format */
 	u16 screen_width;
@@ -391,6 +389,10 @@ struct omap_overlay {
 	/* if true, info has been changed, but not applied() yet */
 	bool info_dirty;
 
+	int (*enable)(struct omap_overlay *ovl);
+	int (*disable)(struct omap_overlay *ovl);
+	bool (*is_enabled)(struct omap_overlay *ovl);
+
 	int (*set_manager)(struct omap_overlay *ovl,
 		struct omap_overlay_manager *mgr);
 	int (*unset_manager)(struct omap_overlay *ovl);

From 75c949653fdf77a17753ffb8462a3c458c476271 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 15 Nov 2011 18:25:23 +0200
Subject: [PATCH 060/108] OMAPDSS: APPLY: rewrite register writing

The functions writing to the DISPC registers in apply.c are more complex
than needed. This patch cleans things up.

Two helper functions are added: need_isr(), which returns if an isr for
VSYNC is needed, and need_go(), which tells if there has been a write to
the shadow registers and we need to set the GO bit.

The functions that call the actual dispc write functions will set the
dirty and shadow_dirty flags themselves, instead of that being done on
the caller side. The writing functions also check if the dirty flag is
even set, and return immediately if not.

This allows us to clean up dss_write_regs().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 290 ++++++++++++++------------------
 1 file changed, 130 insertions(+), 160 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index eb28a7f178dd..931c7776e901 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -88,9 +88,6 @@ struct mgr_priv_data {
 
 	struct omap_overlay_manager_info info;
 
-	bool manual_update;
-	bool do_manual_update;
-
 	/* If true, GO bit is up and shadow registers cannot be written.
 	 * Never true for manual update displays */
 	bool busy;
@@ -111,6 +108,8 @@ static spinlock_t data_lock;
 /* lock for blocking functions */
 static DEFINE_MUTEX(apply_lock);
 
+static void dss_register_vsync_isr(void);
+
 static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
 {
 	return &dss_data.ovl_priv_data_array[ovl->id];
@@ -136,6 +135,70 @@ static bool mgr_manual_update(struct omap_overlay_manager *mgr)
 	return mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
 }
 
+static bool need_isr(void)
+{
+	const int num_mgrs = dss_feat_get_num_mgrs();
+	int i;
+
+	for (i = 0; i < num_mgrs; ++i) {
+		struct omap_overlay_manager *mgr;
+		struct mgr_priv_data *mp;
+		struct omap_overlay *ovl;
+
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
+
+		if (!mp->enabled)
+			continue;
+
+		if (mgr_manual_update(mgr))
+			continue;
+
+		/* to catch GO bit going down */
+		if (mp->busy)
+			return true;
+
+		/* to write new values to registers */
+		if (mp->dirty)
+			return true;
+
+		list_for_each_entry(ovl, &mgr->overlays, list) {
+			struct ovl_priv_data *op;
+
+			op = get_ovl_priv(ovl);
+
+			if (!op->enabled)
+				continue;
+
+			/* to write new values to registers */
+			if (op->dirty || op->extra_info_dirty)
+				return true;
+		}
+	}
+
+	return false;
+}
+
+static bool need_go(struct omap_overlay_manager *mgr)
+{
+	struct omap_overlay *ovl;
+	struct mgr_priv_data *mp;
+	struct ovl_priv_data *op;
+
+	mp = get_mgr_priv(mgr);
+
+	if (mp->shadow_dirty)
+		return true;
+
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		op = get_ovl_priv(ovl);
+		if (op->shadow_dirty || op->shadow_extra_info_dirty)
+			return true;
+	}
+
+	return false;
+}
+
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
@@ -257,20 +320,19 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 	return r;
 }
 
-static int dss_ovl_write_regs(struct omap_overlay *ovl)
+static void dss_ovl_write_regs(struct omap_overlay *ovl)
 {
-	struct ovl_priv_data *op;
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	struct omap_overlay_info *oi;
 	bool ilace, replication;
 	int r;
 
 	DSSDBGF("%d", ovl->id);
 
-	op = get_ovl_priv(ovl);
-	oi = &op->info;
+	if (!op->enabled || !op->dirty)
+		return;
 
-	if (!op->enabled)
-		return 0;
+	oi = &op->info;
 
 	replication = dss_use_replication(ovl->manager->device, oi->color_mode);
 
@@ -280,15 +342,22 @@ static int dss_ovl_write_regs(struct omap_overlay *ovl)
 
 	r = dispc_ovl_setup(ovl->id, oi, ilace, replication);
 	if (r) {
-		/* this shouldn't happen */
+		/*
+		 * We can't do much here, as this function can be called from
+		 * vsync interrupt.
+		 */
 		DSSERR("dispc_ovl_setup failed for ovl %d\n", ovl->id);
-		dispc_ovl_enable(ovl->id, 0);
-		return r;
+
+		/* This will leave fifo configurations in a nonoptimal state */
+		op->enabled = false;
+		dispc_ovl_enable(ovl->id, false);
+		return;
 	}
 
 	dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
 
-	return 0;
+	op->dirty = false;
+	op->shadow_dirty = true;
 }
 
 static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
@@ -297,141 +366,70 @@ static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
 
 	DSSDBGF("%d", ovl->id);
 
+	if (!op->extra_info_dirty)
+		return;
+
 	/* note: write also when op->enabled == false, so that the ovl gets
 	 * disabled */
 
 	dispc_ovl_enable(ovl->id, op->enabled);
+
+	op->extra_info_dirty = false;
+	op->shadow_extra_info_dirty = true;
 }
 
 static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
 {
-	struct mgr_priv_data *mp;
-	struct omap_overlay_manager_info *mi;
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
+	struct omap_overlay *ovl;
 
 	DSSDBGF("%d", mgr->id);
 
-	mp = get_mgr_priv(mgr);
-	mi = &mp->info;
+	if (!mp->enabled)
+		return;
 
-	dispc_mgr_setup(mgr->id, mi);
-}
-
-/* dss_write_regs() tries to write values from cache to shadow registers.
- * It writes only to those managers/overlays that are not busy.
- * returns 0 if everything could be written to shadow registers.
- * returns 1 if not everything could be written to shadow registers. */
-static int dss_write_regs(void)
-{
-	struct omap_overlay *ovl;
-	struct omap_overlay_manager *mgr;
-	struct ovl_priv_data *op;
-	struct mgr_priv_data *mp;
-	const int num_ovls = dss_feat_get_num_ovls();
-	const int num_mgrs = dss_feat_get_num_mgrs();
-	int i;
-	int r;
-	bool mgr_go[MAX_DSS_MANAGERS] = { false };
-	bool busy;
-
-	r = 0;
-	busy = false;
+	WARN_ON(mp->busy);
 
 	/* Commit overlay settings */
-	for (i = 0; i < num_ovls; ++i) {
-		ovl = omap_dss_get_overlay(i);
-		op = get_ovl_priv(ovl);
-
-		if (!op->dirty)
-			continue;
-
-		mp = get_mgr_priv(ovl->manager);
-
-		if (mp->manual_update && !mp->do_manual_update)
-			continue;
-
-		if (mp->busy) {
-			busy = true;
-			continue;
-		}
-
-		r = dss_ovl_write_regs(ovl);
-		if (r)
-			DSSERR("dss_ovl_write_regs %d failed\n", i);
-
-		op->dirty = false;
-		op->shadow_dirty = true;
-		mgr_go[op->channel] = true;
-	}
-
-	for (i = 0; i < num_ovls; ++i) {
-		ovl = omap_dss_get_overlay(i);
-		op = get_ovl_priv(ovl);
-
-		if (!op->extra_info_dirty)
-			continue;
-
-		mp = get_mgr_priv(ovl->manager);
-
-		if (mp->manual_update && !mp->do_manual_update)
-			continue;
-
-		if (mp->busy) {
-			busy = true;
-			continue;
-		}
-
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		dss_ovl_write_regs(ovl);
 		dss_ovl_write_regs_extra(ovl);
-
-		op->extra_info_dirty = false;
-		op->shadow_extra_info_dirty = true;
-		mgr_go[op->channel] = true;
 	}
 
-	/* Commit manager settings */
-	for (i = 0; i < num_mgrs; ++i) {
-		mgr = omap_dss_get_overlay_manager(i);
-		mp = get_mgr_priv(mgr);
+	if (mp->dirty) {
+		dispc_mgr_setup(mgr->id, &mp->info);
 
-		if (!mp->dirty)
-			continue;
-
-		if (mp->manual_update && !mp->do_manual_update)
-			continue;
-
-		if (mp->busy) {
-			busy = true;
-			continue;
-		}
-
-		dss_mgr_write_regs(mgr);
 		mp->dirty = false;
 		mp->shadow_dirty = true;
-		mgr_go[i] = true;
 	}
+}
+
+static void dss_write_regs(void)
+{
+	const int num_mgrs = omap_dss_get_num_overlay_managers();
+	int i;
 
-	/* set GO */
 	for (i = 0; i < num_mgrs; ++i) {
+		struct omap_overlay_manager *mgr;
+		struct mgr_priv_data *mp;
+
 		mgr = omap_dss_get_overlay_manager(i);
 		mp = get_mgr_priv(mgr);
 
-		if (!mgr_go[i])
+		if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
 			continue;
 
-		/* We don't need GO with manual update display. LCD iface will
-		 * always be turned off after frame, and new settings will be
-		 * taken in to use at next update */
-		if (!mp->manual_update) {
+		dss_mgr_write_regs(mgr);
+
+		if (need_go(mgr)) {
 			mp->busy = true;
-			dispc_mgr_go(i);
+
+			if (!dss_data.irq_enabled && need_isr())
+				dss_register_vsync_isr();
+
+			dispc_mgr_go(mgr->id);
 		}
 	}
-
-	if (busy)
-		r = 1;
-	else
-		r = 0;
-
-	return r;
 }
 
 void dss_mgr_start_update(struct omap_overlay_manager *mgr)
@@ -443,9 +441,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	mp->do_manual_update = true;
-	dss_write_regs();
-	mp->do_manual_update = false;
+	dss_mgr_write_regs(mgr);
 
 	list_for_each_entry(ovl, &mgr->overlays, list) {
 		op = get_ovl_priv(ovl);
@@ -502,7 +498,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	struct ovl_priv_data *op;
 	const int num_ovls = dss_feat_get_num_ovls();
 	const int num_mgrs = dss_feat_get_num_mgrs();
-	int i, r;
+	int i;
 
 	spin_lock(&data_lock);
 
@@ -536,31 +532,11 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 			mp->shadow_dirty = false;
 	}
 
-	r = dss_write_regs();
-	if (r == 1)
-		goto end;
+	dss_write_regs();
 
-	/* re-read busy flags */
-	for (i = 0; i < num_mgrs; i++) {
-		mgr = omap_dss_get_overlay_manager(i);
-		mp = get_mgr_priv(mgr);
+	if (!need_isr())
+		dss_unregister_vsync_isr();
 
-		mp->busy = dispc_mgr_go_busy(i);
-	}
-
-	/* keep running as long as there are busy managers, so that
-	 * we can collect overlay-applied information */
-	for (i = 0; i < num_mgrs; ++i) {
-		mgr = omap_dss_get_overlay_manager(i);
-		mp = get_mgr_priv(mgr);
-
-		if (mp->busy)
-			goto end;
-	}
-
-	dss_unregister_vsync_isr();
-
-end:
 	spin_unlock(&data_lock);
 }
 
@@ -599,14 +575,9 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 	if (!mgr->info_dirty)
 		return;
 
-	if (!mgr->device)
-		return;
-
 	mgr->info_dirty = false;
 	mp->dirty = true;
 	mp->info = mgr->info;
-
-	mp->manual_update = mgr_manual_update(mgr);
 }
 
 static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
@@ -650,7 +621,6 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	int r;
 	unsigned long flags;
 	struct omap_overlay *ovl;
-	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 
 	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
 
@@ -671,13 +641,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	list_for_each_entry(ovl, &mgr->overlays, list)
 		omap_dss_mgr_apply_ovl_fifos(ovl);
 
-	r = 0;
-	if (mp->enabled && !mgr_manual_update(mgr)) {
-		if (!dss_data.irq_enabled)
-			dss_register_vsync_isr();
-
-		dss_write_regs();
-	}
+	dss_write_regs();
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
@@ -693,15 +657,17 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 
 	mutex_lock(&apply_lock);
 
-	if (!mgr_manual_update(mgr))
-		dispc_mgr_enable(mgr->id, true);
-
 	spin_lock_irqsave(&data_lock, flags);
 
 	mp->enabled = true;
 
+	dss_write_regs();
+
 	spin_unlock_irqrestore(&data_lock, flags);
 
+	if (!mgr_manual_update(mgr))
+		dispc_mgr_enable(mgr->id, true);
+
 	mutex_unlock(&apply_lock);
 }
 
@@ -971,6 +937,8 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 	op->enabled = true;
 	op->extra_info_dirty = true;
 
+	dss_write_regs();
+
 	spin_unlock_irqrestore(&data_lock, flags);
 
 	mutex_unlock(&apply_lock);
@@ -999,6 +967,8 @@ int dss_ovl_disable(struct omap_overlay *ovl)
 	op->enabled = false;
 	op->extra_info_dirty = true;
 
+	dss_write_regs();
+
 	spin_unlock_irqrestore(&data_lock, flags);
 
 	mutex_unlock(&apply_lock);

From 7d1365c998a462d8ea3627e87526227556b63351 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 18 Nov 2011 15:39:52 +0200
Subject: [PATCH 061/108] OMAPDSS: DISPC: add dispc_mgr_get_framedone_irq

Add dispc_mgr_get_framedone_irq() which returns the irq number for
FRAMEDONE for the given channel.

Note that the function returns always 0 for DIGIT channel, even if OMAP4
does have FRAMEDONE_TV interrupt. The reason for this is that this
function is currently used only to track manual updates, and thus
FRAMEDONE_TV is not needed.

If there's need in the future to also get the FRAMEDONE_TV this needs
revisiting. However, as FRAMEDONE_TV doesn't exist on OMAP2/3, the use
of this function for that purpose needs some extra code to handle the
OMAP2/3 case.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 14 ++++++++++++++
 drivers/video/omap2/dss/dss.h   |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 5f09120d4537..0f84034928ad 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -452,6 +452,20 @@ u32 dispc_mgr_get_vsync_irq(enum omap_channel channel)
 	}
 }
 
+u32 dispc_mgr_get_framedone_irq(enum omap_channel channel)
+{
+	switch (channel) {
+	case OMAP_DSS_CHANNEL_LCD:
+		return DISPC_IRQ_FRAMEDONE;
+	case OMAP_DSS_CHANNEL_LCD2:
+		return DISPC_IRQ_FRAMEDONE2;
+	case OMAP_DSS_CHANNEL_DIGIT:
+		return 0;
+	default:
+		BUG();
+	}
+}
+
 bool dispc_mgr_go_busy(enum omap_channel channel)
 {
 	int bit;
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 7aac8a3367bc..6fce3108c060 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -430,6 +430,7 @@ void dispc_ovl_set_channel_out(enum omap_plane plane,
 void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable);
 void dispc_mgr_set_lcd_size(enum omap_channel channel, u16 width, u16 height);
 u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
+u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
 bool dispc_mgr_go_busy(enum omap_channel channel);
 void dispc_mgr_go(enum omap_channel channel);
 bool dispc_mgr_is_enabled(enum omap_channel channel);

From 34861378a54e3fcac0eb87317ded2554b087494e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 18 Nov 2011 15:43:29 +0200
Subject: [PATCH 062/108] OMAPDSS: APPLY: add updating flag

Add "updating" flag to mgr_priv_data, which is used to track whether the
manager is currently actively working, i.e. updating the screen.

For auto-update displays updating is always true when the display is
enabled, but for manual update displays the flag is true only during
frame transfers.

The flag is used to manage registers properly, for example when updating
is false and a register for a manager is written, there's no need to set
shadow_dirty flag nor set the GO bit, as the settings will be taken into
use by the HW automatically when the output is enabled.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 83 +++++++++++++++++++++------------
 1 file changed, 53 insertions(+), 30 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 931c7776e901..3bb5149b3a28 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -92,6 +92,9 @@ struct mgr_priv_data {
 	 * Never true for manual update displays */
 	bool busy;
 
+	/* If true, dispc output is enabled */
+	bool updating;
+
 	/* If true, a display is enabled using this manager */
 	bool enabled;
 };
@@ -151,28 +154,31 @@ static bool need_isr(void)
 		if (!mp->enabled)
 			continue;
 
-		if (mgr_manual_update(mgr))
-			continue;
-
-		/* to catch GO bit going down */
-		if (mp->busy)
-			return true;
-
-		/* to write new values to registers */
-		if (mp->dirty)
-			return true;
-
-		list_for_each_entry(ovl, &mgr->overlays, list) {
-			struct ovl_priv_data *op;
-
-			op = get_ovl_priv(ovl);
-
-			if (!op->enabled)
-				continue;
+		if (mgr_manual_update(mgr)) {
+			/* to catch FRAMEDONE */
+			if (mp->updating)
+				return true;
+		} else {
+			/* to catch GO bit going down */
+			if (mp->busy)
+				return true;
 
 			/* to write new values to registers */
-			if (op->dirty || op->extra_info_dirty)
+			if (mp->dirty)
 				return true;
+
+			list_for_each_entry(ovl, &mgr->overlays, list) {
+				struct ovl_priv_data *op;
+
+				op = get_ovl_priv(ovl);
+
+				if (!op->enabled)
+					continue;
+
+				/* to write new values to registers */
+				if (op->dirty || op->extra_info_dirty)
+					return true;
+			}
 		}
 	}
 
@@ -325,6 +331,7 @@ static void dss_ovl_write_regs(struct omap_overlay *ovl)
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	struct omap_overlay_info *oi;
 	bool ilace, replication;
+	struct mgr_priv_data *mp;
 	int r;
 
 	DSSDBGF("%d", ovl->id);
@@ -356,13 +363,17 @@ static void dss_ovl_write_regs(struct omap_overlay *ovl)
 
 	dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
 
+	mp = get_mgr_priv(ovl->manager);
+
 	op->dirty = false;
-	op->shadow_dirty = true;
+	if (mp->updating)
+		op->shadow_dirty = true;
 }
 
 static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
+	struct mgr_priv_data *mp;
 
 	DSSDBGF("%d", ovl->id);
 
@@ -374,8 +385,11 @@ static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
 
 	dispc_ovl_enable(ovl->id, op->enabled);
 
+	mp = get_mgr_priv(ovl->manager);
+
 	op->extra_info_dirty = false;
-	op->shadow_extra_info_dirty = true;
+	if (mp->updating)
+		op->shadow_extra_info_dirty = true;
 }
 
 static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
@@ -400,7 +414,8 @@ static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
 		dispc_mgr_setup(mgr->id, &mp->info);
 
 		mp->dirty = false;
-		mp->shadow_dirty = true;
+		if (mp->updating)
+			mp->shadow_dirty = true;
 	}
 }
 
@@ -435,21 +450,18 @@ static void dss_write_regs(void)
 void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
-	struct ovl_priv_data *op;
-	struct omap_overlay *ovl;
 	unsigned long flags;
 
 	spin_lock_irqsave(&data_lock, flags);
 
+	WARN_ON(mp->updating);
+
 	dss_mgr_write_regs(mgr);
 
-	list_for_each_entry(ovl, &mgr->overlays, list) {
-		op = get_ovl_priv(ovl);
-		op->shadow_dirty = false;
-		op->shadow_extra_info_dirty = false;
-	}
+	mp->updating = true;
 
-	mp->shadow_dirty = false;
+	if (!dss_data.irq_enabled && need_isr())
+		dss_register_vsync_isr();
 
 	dispc_mgr_enable(mgr->id, true);
 
@@ -468,6 +480,9 @@ static void dss_register_vsync_isr(void)
 	for (i = 0; i < num_mgrs; ++i)
 		mask |= dispc_mgr_get_vsync_irq(i);
 
+	for (i = 0; i < num_mgrs; ++i)
+		mask |= dispc_mgr_get_framedone_irq(i);
+
 	r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
 	WARN_ON(r);
 
@@ -484,6 +499,9 @@ static void dss_unregister_vsync_isr(void)
 	for (i = 0; i < num_mgrs; ++i)
 		mask |= dispc_mgr_get_vsync_irq(i);
 
+	for (i = 0; i < num_mgrs; ++i)
+		mask |= dispc_mgr_get_framedone_irq(i);
+
 	r = omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, mask);
 	WARN_ON(r);
 
@@ -507,6 +525,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 		mp = get_mgr_priv(mgr);
 
 		mp->busy = dispc_mgr_go_busy(i);
+		mp->updating = dispc_mgr_is_enabled(i);
 	}
 
 	for (i = 0; i < num_ovls; ++i) {
@@ -663,6 +682,9 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 
 	dss_write_regs();
 
+	if (!mgr_manual_update(mgr))
+		mp->updating = true;
+
 	spin_unlock_irqrestore(&data_lock, flags);
 
 	if (!mgr_manual_update(mgr))
@@ -683,6 +705,7 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 
 	spin_lock_irqsave(&data_lock, flags);
 
+	mp->updating = false;
 	mp->enabled = false;
 
 	spin_unlock_irqrestore(&data_lock, flags);

From 7609893c637b422eec88b57d204f02d8798cfc65 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 12:03:22 +0200
Subject: [PATCH 063/108] OMAPDSS: APPLY: clean up isr_handler

Add a helper function mgr_clear_shadow_dirty(), which clears the
shadow_dirty flags for the given manager and for the overlays on that
manager.

This lets us simplify the code in the dss_apply_irq_handler().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 52 ++++++++++++++++++---------------
 1 file changed, 28 insertions(+), 24 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 3bb5149b3a28..8b157b03d4b6 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -508,49 +508,53 @@ static void dss_unregister_vsync_isr(void)
 	dss_data.irq_enabled = false;
 }
 
-static void dss_apply_irq_handler(void *data, u32 mask)
+static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
 {
 	struct omap_overlay *ovl;
-	struct omap_overlay_manager *mgr;
 	struct mgr_priv_data *mp;
 	struct ovl_priv_data *op;
-	const int num_ovls = dss_feat_get_num_ovls();
+
+	mp = get_mgr_priv(mgr);
+	mp->shadow_dirty = false;
+
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		op = get_ovl_priv(ovl);
+		op->shadow_dirty = false;
+		op->shadow_extra_info_dirty = false;
+	}
+}
+
+static void dss_apply_irq_handler(void *data, u32 mask)
+{
 	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i;
 
 	spin_lock(&data_lock);
 
+	/* clear busy, updating flags, shadow_dirty flags */
 	for (i = 0; i < num_mgrs; i++) {
+		struct omap_overlay_manager *mgr;
+		struct mgr_priv_data *mp;
+
 		mgr = omap_dss_get_overlay_manager(i);
 		mp = get_mgr_priv(mgr);
 
-		mp->busy = dispc_mgr_go_busy(i);
-		mp->updating = dispc_mgr_is_enabled(i);
-	}
-
-	for (i = 0; i < num_ovls; ++i) {
-		ovl = omap_dss_get_overlay(i);
-		op = get_ovl_priv(ovl);
-
-		if (!op->enabled)
+		if (!mp->enabled)
 			continue;
 
-		mp = get_mgr_priv(ovl->manager);
+		mp->updating = dispc_mgr_is_enabled(i);
 
-		if (!mp->busy) {
-			op->shadow_dirty = false;
-			op->shadow_extra_info_dirty = false;
+		if (!mgr_manual_update(mgr)) {
+			mp->busy = dispc_mgr_go_busy(i);
+
+			if (!mp->busy)
+				mgr_clear_shadow_dirty(mgr);
+		} else {
+			if (!mp->updating)
+				mgr_clear_shadow_dirty(mgr);
 		}
 	}
 
-	for (i = 0; i < num_mgrs; ++i) {
-		mgr = omap_dss_get_overlay_manager(i);
-		mp = get_mgr_priv(mgr);
-
-		if (!mp->busy)
-			mp->shadow_dirty = false;
-	}
-
 	dss_write_regs();
 
 	if (!need_isr())

From 388c4c6cbb335e69fe23c8d18bd4b0e8dd66901b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 13:58:07 +0200
Subject: [PATCH 064/108] OMAPDSS: APPLY: move mgr->info to apply.c

struct omap_overlay_manager contains info and info_dirty fields, both of
which should be internal to apply.c.

This patch moves those fields into mgr_priv data, and names them
user_info and user_info_dirty.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 20 +++++++++++-------
 drivers/video/omap2/dss/manager.c | 35 +++++++++++++++++++++++++------
 include/video/omapdss.h           |  3 ---
 3 files changed, 42 insertions(+), 16 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 8b157b03d4b6..62319b8328da 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -78,6 +78,10 @@ struct ovl_priv_data {
 };
 
 struct mgr_priv_data {
+
+	bool user_info_dirty;
+	struct omap_overlay_manager_info user_info;
+
 	/* If true, cache changed, but not written to shadow registers. Set
 	 * in apply(), cleared when registers written. */
 	bool dirty;
@@ -592,15 +596,15 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 
 	if (mgr->device_changed) {
 		mgr->device_changed = false;
-		mgr->info_dirty  = true;
+		mp->user_info_dirty  = true;
 	}
 
-	if (!mgr->info_dirty)
+	if (!mp->user_info_dirty)
 		return;
 
-	mgr->info_dirty = false;
+	mp->user_info_dirty = false;
 	mp->dirty = true;
-	mp->info = mgr->info;
+	mp->info = mp->user_info;
 }
 
 static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
@@ -720,12 +724,13 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	mgr->info = *info;
-	mgr->info_dirty = true;
+	mp->user_info = *info;
+	mp->user_info_dirty = true;
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
@@ -735,11 +740,12 @@ int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 void dss_mgr_get_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	*info = mgr->info;
+	*info = mp->user_info;
 
 	spin_unlock_irqrestore(&data_lock, flags);
 }
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index d7fd494908d8..8c967ef2ae98 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -104,7 +104,11 @@ put_device:
 static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
 					  char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%#x\n", mgr->info.default_color);
+	struct omap_overlay_manager_info info;
+
+	mgr->get_manager_info(mgr, &info);
+
+	return snprintf(buf, PAGE_SIZE, "%#x\n", info.default_color);
 }
 
 static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
@@ -142,8 +146,11 @@ static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
 					   char *buf)
 {
 	enum omap_dss_trans_key_type key_type;
+	struct omap_overlay_manager_info info;
 
-	key_type = mgr->info.trans_key_type;
+	mgr->get_manager_info(mgr, &info);
+
+	key_type = info.trans_key_type;
 	BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
 
 	return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
@@ -183,7 +190,11 @@ static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
 static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
 					    char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%#x\n", mgr->info.trans_key);
+	struct omap_overlay_manager_info info;
+
+	mgr->get_manager_info(mgr, &info);
+
+	return snprintf(buf, PAGE_SIZE, "%#x\n", info.trans_key);
 }
 
 static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
@@ -215,7 +226,11 @@ static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
 static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
 					      char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled);
+	struct omap_overlay_manager_info info;
+
+	mgr->get_manager_info(mgr, &info);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", info.trans_enabled);
 }
 
 static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
@@ -247,10 +262,14 @@ static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
 static ssize_t manager_alpha_blending_enabled_show(
 		struct omap_overlay_manager *mgr, char *buf)
 {
+	struct omap_overlay_manager_info info;
+
+	mgr->get_manager_info(mgr, &info);
+
 	WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
 
 	return snprintf(buf, PAGE_SIZE, "%d\n",
-		mgr->info.partial_alpha_enabled);
+		info.partial_alpha_enabled);
 }
 
 static ssize_t manager_alpha_blending_enabled_store(
@@ -285,7 +304,11 @@ static ssize_t manager_alpha_blending_enabled_store(
 static ssize_t manager_cpr_enable_show(struct omap_overlay_manager *mgr,
 		char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.cpr_enable);
+	struct omap_overlay_manager_info info;
+
+	mgr->get_manager_info(mgr, &info);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", info.cpr_enable);
 }
 
 static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 9d01ff66659f..0d5333f6e4a1 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -430,11 +430,8 @@ struct omap_overlay_manager {
 
 	/* dynamic fields */
 	struct omap_dss_device *device;
-	struct omap_overlay_manager_info info;
 
 	bool device_changed;
-	/* if true, info has been changed but not applied() yet */
-	bool info_dirty;
 
 	int (*set_device)(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev);

From c1a9febfafa2a9a9ac09b2de4c80aa96b41a03d1 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 14:11:56 +0200
Subject: [PATCH 065/108] OMAPDSS: APPLY: move ovl->info to apply.c

struct omap_overlayr contains info and info_dirty fields, both of which
should be internal to apply.c.

This patch moves those fields into ovl_priv data, and names them
user_info and user_info_dirty.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c           | 51 +++++++++++++++++++---
 drivers/video/omap2/dss/overlay.c         | 53 +++++++++++++++--------
 drivers/video/omap2/omapfb/omapfb-ioctl.c | 12 ++---
 drivers/video/omap2/omapfb/omapfb-main.c  | 12 +++--
 include/video/omapdss.h                   |  3 --
 5 files changed, 93 insertions(+), 38 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 62319b8328da..debd37aa9128 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -55,6 +55,10 @@
  */
 
 struct ovl_priv_data {
+
+	bool user_info_dirty;
+	struct omap_overlay_info user_info;
+
 	/* If true, cache changed, but not written to shadow registers. Set
 	 * in apply(), cleared when registers written. */
 	bool dirty;
@@ -129,7 +133,38 @@ static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
 
 void dss_apply_init(void)
 {
+	const int num_ovls = dss_feat_get_num_ovls();
+	int i;
+
 	spin_lock_init(&data_lock);
+
+	for (i = 0; i < num_ovls; ++i) {
+		struct ovl_priv_data *op;
+
+		op = &dss_data.ovl_priv_data_array[i];
+
+		op->info.global_alpha = 255;
+
+		switch (i) {
+		case 0:
+			op->info.zorder = 0;
+			break;
+		case 1:
+			op->info.zorder =
+				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 3 : 0;
+			break;
+		case 2:
+			op->info.zorder =
+				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 2 : 0;
+			break;
+		case 3:
+			op->info.zorder =
+				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 1 : 0;
+			break;
+		}
+
+		op->user_info = op->info;
+	}
 }
 
 static bool ovl_manual_update(struct omap_overlay *ovl)
@@ -575,15 +610,15 @@ static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 
 	if (ovl->manager_changed) {
 		ovl->manager_changed = false;
-		ovl->info_dirty  = true;
+		op->user_info_dirty  = true;
 	}
 
-	if (!ovl->info_dirty)
+	if (!op->user_info_dirty)
 		return;
 
-	ovl->info_dirty = false;
+	op->user_info_dirty = false;
 	op->dirty = true;
-	op->info = ovl->info;
+	op->info = op->user_info;
 
 	op->channel = ovl->manager->id;
 }
@@ -821,12 +856,13 @@ err:
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	unsigned long flags;
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	ovl->info = *info;
-	ovl->info_dirty = true;
+	op->user_info = *info;
+	op->user_info_dirty = true;
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
@@ -836,11 +872,12 @@ int dss_ovl_set_info(struct omap_overlay *ovl,
 void dss_ovl_get_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	unsigned long flags;
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	*info = ovl->info;
+	*info = op->user_info;
 
 	spin_unlock_irqrestore(&data_lock, flags);
 }
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 7d7cdf62059b..8d036e661a26 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -124,19 +124,31 @@ err:
 
 static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf)
 {
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
 	return snprintf(buf, PAGE_SIZE, "%d,%d\n",
-			ovl->info.width, ovl->info.height);
+			info.width, info.height);
 }
 
 static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width);
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", info.screen_width);
 }
 
 static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf)
 {
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
 	return snprintf(buf, PAGE_SIZE, "%d,%d\n",
-			ovl->info.pos_x, ovl->info.pos_y);
+			info.pos_x, info.pos_y);
 }
 
 static ssize_t overlay_position_store(struct omap_overlay *ovl,
@@ -170,8 +182,12 @@ static ssize_t overlay_position_store(struct omap_overlay *ovl,
 
 static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf)
 {
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
 	return snprintf(buf, PAGE_SIZE, "%d,%d\n",
-			ovl->info.out_width, ovl->info.out_height);
+			info.out_width, info.out_height);
 }
 
 static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
@@ -231,8 +247,12 @@ static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
 
 static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf)
 {
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
 	return snprintf(buf, PAGE_SIZE, "%d\n",
-			ovl->info.global_alpha);
+			info.global_alpha);
 }
 
 static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
@@ -269,8 +289,12 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
 static ssize_t overlay_pre_mult_alpha_show(struct omap_overlay *ovl,
 		char *buf)
 {
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
 	return snprintf(buf, PAGE_SIZE, "%d\n",
-			ovl->info.pre_mult_alpha);
+			info.pre_mult_alpha);
 }
 
 static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
@@ -306,7 +330,11 @@ static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
 
 static ssize_t overlay_zorder_show(struct omap_overlay *ovl, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.zorder);
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", info.zorder);
 }
 
 static ssize_t overlay_zorder_store(struct omap_overlay *ovl,
@@ -456,29 +484,18 @@ void dss_init_overlays(struct platform_device *pdev)
 		case 0:
 			ovl->name = "gfx";
 			ovl->id = OMAP_DSS_GFX;
-			ovl->info.global_alpha = 255;
-			ovl->info.zorder = 0;
 			break;
 		case 1:
 			ovl->name = "vid1";
 			ovl->id = OMAP_DSS_VIDEO1;
-			ovl->info.global_alpha = 255;
-			ovl->info.zorder =
-				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 3 : 0;
 			break;
 		case 2:
 			ovl->name = "vid2";
 			ovl->id = OMAP_DSS_VIDEO2;
-			ovl->info.global_alpha = 255;
-			ovl->info.zorder =
-				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 2 : 0;
 			break;
 		case 3:
 			ovl->name = "vid3";
 			ovl->id = OMAP_DSS_VIDEO3;
-			ovl->info.global_alpha = 255;
-			ovl->info.zorder =
-				dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 1 : 0;
 			break;
 		}
 
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
index 562b5cc07609..16ba6196f330 100644
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -189,19 +189,19 @@ static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
 		memset(pi, 0, sizeof(*pi));
 	} else {
 		struct omap_overlay *ovl;
-		struct omap_overlay_info *ovli;
+		struct omap_overlay_info ovli;
 
 		ovl = ofbi->overlays[0];
-		ovli = &ovl->info;
+		ovl->get_overlay_info(ovl, &ovli);
 
-		pi->pos_x = ovli->pos_x;
-		pi->pos_y = ovli->pos_y;
+		pi->pos_x = ovli.pos_x;
+		pi->pos_y = ovli.pos_y;
 		pi->enabled = ovl->is_enabled(ovl);
 		pi->channel_out = 0; /* xxx */
 		pi->mirror = 0;
 		pi->mem_idx = get_mem_idx(ofbi);
-		pi->out_width = ovli->out_width;
-		pi->out_height = ovli->out_height;
+		pi->out_width = ovli.out_width;
+		pi->out_height = ovli.out_height;
 	}
 
 	return 0;
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 91b49b530695..46024ab9dae6 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -970,16 +970,20 @@ int omapfb_apply_changes(struct fb_info *fbi, int init)
 				outh = var->yres;
 			}
 		} else {
-			outw = ovl->info.out_width;
-			outh = ovl->info.out_height;
+			struct omap_overlay_info info;
+			ovl->get_overlay_info(ovl, &info);
+			outw = info.out_width;
+			outh = info.out_height;
 		}
 
 		if (init) {
 			posx = 0;
 			posy = 0;
 		} else {
-			posx = ovl->info.pos_x;
-			posy = ovl->info.pos_y;
+			struct omap_overlay_info info;
+			ovl->get_overlay_info(ovl, &info);
+			posx = info.pos_x;
+			posy = info.pos_y;
 		}
 
 		r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 0d5333f6e4a1..2e2c53f5e7ca 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -383,11 +383,8 @@ struct omap_overlay {
 
 	/* dynamic fields */
 	struct omap_overlay_manager *manager;
-	struct omap_overlay_info info;
 
 	bool manager_changed;
-	/* if true, info has been changed, but not applied() yet */
-	bool info_dirty;
 
 	int (*enable)(struct omap_overlay *ovl);
 	int (*disable)(struct omap_overlay *ovl);

From 5d5a97a6fbf98f82ae50c837eba3ebcfea0902f8 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 14:17:54 +0200
Subject: [PATCH 066/108] OMAPDSS: APPLY: move channel-field to extra_info set

Setting overlay's output channel is currently handled at the same time
as other overlay attributes. This is not right, as the normal attributes
should only affect one overlay and manager, but changing the channel
affects two managers.

This patch moves the channel field into the "extra_info" set, handled
together with enabled-status.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 21 +++++++--------------
 include/video/omapdss.h         |  2 --
 2 files changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index debd37aa9128..3fd2ea163f05 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -69,8 +69,6 @@ struct ovl_priv_data {
 
 	struct omap_overlay_info info;
 
-	enum omap_channel channel;
-
 	u32 fifo_low;
 	u32 fifo_high;
 
@@ -78,7 +76,7 @@ struct ovl_priv_data {
 	bool shadow_extra_info_dirty;
 
 	bool enabled;
-
+	enum omap_channel channel;
 };
 
 struct mgr_priv_data {
@@ -384,8 +382,6 @@ static void dss_ovl_write_regs(struct omap_overlay *ovl)
 
 	ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
 
-	dispc_ovl_set_channel_out(ovl->id, op->channel);
-
 	r = dispc_ovl_setup(ovl->id, oi, ilace, replication);
 	if (r) {
 		/*
@@ -423,6 +419,7 @@ static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
 	 * disabled */
 
 	dispc_ovl_enable(ovl->id, op->enabled);
+	dispc_ovl_set_channel_out(ovl->id, op->channel);
 
 	mp = get_mgr_priv(ovl->manager);
 
@@ -608,19 +605,12 @@ static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 
 	op = get_ovl_priv(ovl);
 
-	if (ovl->manager_changed) {
-		ovl->manager_changed = false;
-		op->user_info_dirty  = true;
-	}
-
 	if (!op->user_info_dirty)
 		return;
 
 	op->user_info_dirty = false;
 	op->dirty = true;
 	op->info = op->user_info;
-
-	op->channel = ovl->manager->id;
 }
 
 static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
@@ -910,9 +900,11 @@ int dss_ovl_set_manager(struct omap_overlay *ovl,
 		goto err;
 	}
 
+	op->channel = mgr->id;
+	op->extra_info_dirty = true;
+
 	ovl->manager = mgr;
 	list_add_tail(&ovl->list, &mgr->overlays);
-	ovl->manager_changed = true;
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
@@ -960,9 +952,10 @@ int dss_ovl_unset_manager(struct omap_overlay *ovl)
 		goto err;
 	}
 
+	op->channel = -1;
+
 	ovl->manager = NULL;
 	list_del(&ovl->list);
-	ovl->manager_changed = true;
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 2e2c53f5e7ca..e629b0de3262 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -384,8 +384,6 @@ struct omap_overlay {
 	/* dynamic fields */
 	struct omap_overlay_manager *manager;
 
-	bool manager_changed;
-
 	int (*enable)(struct omap_overlay *ovl);
 	int (*disable)(struct omap_overlay *ovl);
 	bool (*is_enabled)(struct omap_overlay *ovl);

From 6dc802e2901d33e02efad3c90bb2034fd20c79e7 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 14:28:12 +0200
Subject: [PATCH 067/108] OMAPDSS: APPLY: move fifo thresholds to extra_info
 set

Setting overlay's fifo thresholds is currently handled at the same time
as other overlay attributes. This is not right, as the normal attributes
should only affect one overlay and manager, but changing the fifo
thresholds are needed in cases like fifo-merge, where multiple managers
are affected.

This patch moves the channel field into the "extra_info" set, handled
together with channel and enabled-status.

This also lets us to calculate the fifos only when needed, specifically,
when an overlay or a manager is enabled.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 109 +++++++++++++++++++-------------
 1 file changed, 64 insertions(+), 45 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 3fd2ea163f05..d5505becd065 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -69,14 +69,12 @@ struct ovl_priv_data {
 
 	struct omap_overlay_info info;
 
-	u32 fifo_low;
-	u32 fifo_high;
-
 	bool extra_info_dirty;
 	bool shadow_extra_info_dirty;
 
 	bool enabled;
 	enum omap_channel channel;
+	u32 fifo_low, fifo_high;
 };
 
 struct mgr_priv_data {
@@ -396,8 +394,6 @@ static void dss_ovl_write_regs(struct omap_overlay *ovl)
 		return;
 	}
 
-	dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
-
 	mp = get_mgr_priv(ovl->manager);
 
 	op->dirty = false;
@@ -420,6 +416,7 @@ static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
 
 	dispc_ovl_enable(ovl->id, op->enabled);
 	dispc_ovl_set_channel_out(ovl->id, op->channel);
+	dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
 
 	mp = get_mgr_priv(ovl->manager);
 
@@ -632,42 +629,6 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 	mp->info = mp->user_info;
 }
 
-static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
-{
-	struct ovl_priv_data *op;
-	struct omap_dss_device *dssdev;
-	u32 size, burst_size;
-
-	op = get_ovl_priv(ovl);
-
-	dssdev = ovl->manager->device;
-
-	size = dispc_ovl_get_fifo_size(ovl->id);
-
-	burst_size = dispc_ovl_get_burst_size(ovl->id);
-
-	switch (dssdev->type) {
-	case OMAP_DISPLAY_TYPE_DPI:
-	case OMAP_DISPLAY_TYPE_DBI:
-	case OMAP_DISPLAY_TYPE_SDI:
-	case OMAP_DISPLAY_TYPE_VENC:
-	case OMAP_DISPLAY_TYPE_HDMI:
-		default_get_overlay_fifo_thresholds(ovl->id, size,
-				burst_size, &op->fifo_low,
-				&op->fifo_high);
-		break;
-#ifdef CONFIG_OMAP2_DSS_DSI
-	case OMAP_DISPLAY_TYPE_DSI:
-		dsi_get_overlay_fifo_thresholds(ovl->id, size,
-				burst_size, &op->fifo_low,
-				&op->fifo_high);
-		break;
-#endif
-	default:
-		BUG();
-	}
-}
-
 int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 {
 	int r;
@@ -689,10 +650,6 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	/* Configure manager */
 	omap_dss_mgr_apply_mgr(mgr);
 
-	/* Configure overlay fifos */
-	list_for_each_entry(ovl, &mgr->overlays, list)
-		omap_dss_mgr_apply_ovl_fifos(ovl);
-
 	dss_write_regs();
 
 	spin_unlock_irqrestore(&data_lock, flags);
@@ -702,6 +659,64 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	return r;
 }
 
+static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
+{
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+	struct omap_dss_device *dssdev;
+	u32 size, burst_size;
+	u32 fifo_low, fifo_high;
+
+	dssdev = ovl->manager->device;
+
+	size = dispc_ovl_get_fifo_size(ovl->id);
+
+	burst_size = dispc_ovl_get_burst_size(ovl->id);
+
+	switch (dssdev->type) {
+	case OMAP_DISPLAY_TYPE_DPI:
+	case OMAP_DISPLAY_TYPE_DBI:
+	case OMAP_DISPLAY_TYPE_SDI:
+	case OMAP_DISPLAY_TYPE_VENC:
+	case OMAP_DISPLAY_TYPE_HDMI:
+		default_get_overlay_fifo_thresholds(ovl->id, size,
+				burst_size, &fifo_low, &fifo_high);
+		break;
+#ifdef CONFIG_OMAP2_DSS_DSI
+	case OMAP_DISPLAY_TYPE_DSI:
+		dsi_get_overlay_fifo_thresholds(ovl->id, size,
+				burst_size, &fifo_low, &fifo_high);
+		break;
+#endif
+	default:
+		BUG();
+	}
+
+	op->fifo_low = fifo_low;
+	op->fifo_high = fifo_high;
+	op->extra_info_dirty = true;
+}
+
+static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
+{
+	struct omap_overlay *ovl;
+	struct ovl_priv_data *op;
+	struct mgr_priv_data *mp;
+
+	mp = get_mgr_priv(mgr);
+
+	if (!mp->enabled)
+		return;
+
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		op = get_ovl_priv(ovl);
+
+		if (!op->enabled)
+			continue;
+
+		dss_ovl_setup_fifo(ovl);
+	}
+}
+
 void dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
@@ -713,6 +728,8 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 
 	mp->enabled = true;
 
+	dss_mgr_setup_fifos(mgr);
+
 	dss_write_regs();
 
 	if (!mgr_manual_update(mgr))
@@ -1000,6 +1017,8 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 	op->enabled = true;
 	op->extra_info_dirty = true;
 
+	dss_ovl_setup_fifo(ovl);
+
 	dss_write_regs();
 
 	spin_unlock_irqrestore(&data_lock, flags);

From 0b53f17971700f673492e2e91b5069893e5f2d0b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 14:31:58 +0200
Subject: [PATCH 068/108] OMAPDSS: APPLY: rename dirty & shadow_dirty

Rename ovl_priv_data's and mgr_priv_data's dirty and shadow_dirty fields
to info_dirty and shadow_info_dirty to better reflect what they mean.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 62 ++++++++++++++-------------------
 1 file changed, 27 insertions(+), 35 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index d5505becd065..9916eb8e20d5 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -31,8 +31,10 @@
  * We have 4 levels of cache for the dispc settings. First two are in SW and
  * the latter two in HW.
  *
+ *       set_info()
+ *          v
  * +--------------------+
- * |overlay/manager_info|
+ * |     user_info      |
  * +--------------------+
  *          v
  *        apply()
@@ -59,16 +61,11 @@ struct ovl_priv_data {
 	bool user_info_dirty;
 	struct omap_overlay_info user_info;
 
-	/* If true, cache changed, but not written to shadow registers. Set
-	 * in apply(), cleared when registers written. */
-	bool dirty;
-	/* If true, shadow registers contain changed values not yet in real
-	 * registers. Set when writing to shadow registers, cleared at
-	 * VSYNC/EVSYNC */
-	bool shadow_dirty;
-
+	bool info_dirty;
 	struct omap_overlay_info info;
 
+	bool shadow_info_dirty;
+
 	bool extra_info_dirty;
 	bool shadow_extra_info_dirty;
 
@@ -82,16 +79,11 @@ struct mgr_priv_data {
 	bool user_info_dirty;
 	struct omap_overlay_manager_info user_info;
 
-	/* If true, cache changed, but not written to shadow registers. Set
-	 * in apply(), cleared when registers written. */
-	bool dirty;
-	/* If true, shadow registers contain changed values not yet in real
-	 * registers. Set when writing to shadow registers, cleared at
-	 * VSYNC/EVSYNC */
-	bool shadow_dirty;
-
+	bool info_dirty;
 	struct omap_overlay_manager_info info;
 
+	bool shadow_info_dirty;
+
 	/* If true, GO bit is up and shadow registers cannot be written.
 	 * Never true for manual update displays */
 	bool busy;
@@ -199,7 +191,7 @@ static bool need_isr(void)
 				return true;
 
 			/* to write new values to registers */
-			if (mp->dirty)
+			if (mp->info_dirty)
 				return true;
 
 			list_for_each_entry(ovl, &mgr->overlays, list) {
@@ -211,7 +203,7 @@ static bool need_isr(void)
 					continue;
 
 				/* to write new values to registers */
-				if (op->dirty || op->extra_info_dirty)
+				if (op->info_dirty || op->extra_info_dirty)
 					return true;
 			}
 		}
@@ -228,12 +220,12 @@ static bool need_go(struct omap_overlay_manager *mgr)
 
 	mp = get_mgr_priv(mgr);
 
-	if (mp->shadow_dirty)
+	if (mp->shadow_info_dirty)
 		return true;
 
 	list_for_each_entry(ovl, &mgr->overlays, list) {
 		op = get_ovl_priv(ovl);
-		if (op->shadow_dirty || op->shadow_extra_info_dirty)
+		if (op->shadow_info_dirty || op->shadow_extra_info_dirty)
 			return true;
 	}
 
@@ -264,8 +256,8 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 		bool shadow_dirty, dirty;
 
 		spin_lock_irqsave(&data_lock, flags);
-		dirty = mp->dirty;
-		shadow_dirty = mp->shadow_dirty;
+		dirty = mp->info_dirty;
+		shadow_dirty = mp->shadow_info_dirty;
 		spin_unlock_irqrestore(&data_lock, flags);
 
 		if (!dirty && !shadow_dirty) {
@@ -327,8 +319,8 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 		bool shadow_dirty, dirty;
 
 		spin_lock_irqsave(&data_lock, flags);
-		dirty = op->dirty;
-		shadow_dirty = op->shadow_dirty;
+		dirty = op->info_dirty;
+		shadow_dirty = op->shadow_info_dirty;
 		spin_unlock_irqrestore(&data_lock, flags);
 
 		if (!dirty && !shadow_dirty) {
@@ -371,7 +363,7 @@ static void dss_ovl_write_regs(struct omap_overlay *ovl)
 
 	DSSDBGF("%d", ovl->id);
 
-	if (!op->enabled || !op->dirty)
+	if (!op->enabled || !op->info_dirty)
 		return;
 
 	oi = &op->info;
@@ -396,9 +388,9 @@ static void dss_ovl_write_regs(struct omap_overlay *ovl)
 
 	mp = get_mgr_priv(ovl->manager);
 
-	op->dirty = false;
+	op->info_dirty = false;
 	if (mp->updating)
-		op->shadow_dirty = true;
+		op->shadow_info_dirty = true;
 }
 
 static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
@@ -443,12 +435,12 @@ static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
 		dss_ovl_write_regs_extra(ovl);
 	}
 
-	if (mp->dirty) {
+	if (mp->info_dirty) {
 		dispc_mgr_setup(mgr->id, &mp->info);
 
-		mp->dirty = false;
+		mp->info_dirty = false;
 		if (mp->updating)
-			mp->shadow_dirty = true;
+			mp->shadow_info_dirty = true;
 	}
 }
 
@@ -548,11 +540,11 @@ static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
 	struct ovl_priv_data *op;
 
 	mp = get_mgr_priv(mgr);
-	mp->shadow_dirty = false;
+	mp->shadow_info_dirty = false;
 
 	list_for_each_entry(ovl, &mgr->overlays, list) {
 		op = get_ovl_priv(ovl);
-		op->shadow_dirty = false;
+		op->shadow_info_dirty = false;
 		op->shadow_extra_info_dirty = false;
 	}
 }
@@ -606,7 +598,7 @@ static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
 		return;
 
 	op->user_info_dirty = false;
-	op->dirty = true;
+	op->info_dirty = true;
 	op->info = op->user_info;
 }
 
@@ -625,7 +617,7 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 		return;
 
 	mp->user_info_dirty = false;
-	mp->dirty = true;
+	mp->info_dirty = true;
 	mp->info = mp->user_info;
 }
 

From ff4733dcf56480bebcd3801adde27213b893635d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 14:54:42 +0200
Subject: [PATCH 069/108] OMAPDSS: APPLY: remove device_changed field

omap_overlay_manager contains device_changed field, which no longer has
any use. So remove the field and the few places where it is touched.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 7 -------
 include/video/omapdss.h         | 2 --
 2 files changed, 9 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 9916eb8e20d5..70154092d731 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -608,11 +608,6 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 
 	mp = get_mgr_priv(mgr);
 
-	if (mgr->device_changed) {
-		mgr->device_changed = false;
-		mp->user_info_dirty  = true;
-	}
-
 	if (!mp->user_info_dirty)
 		return;
 
@@ -807,7 +802,6 @@ int dss_mgr_set_device(struct omap_overlay_manager *mgr,
 
 	dssdev->manager = mgr;
 	mgr->device = dssdev;
-	mgr->device_changed = true;
 
 	mutex_unlock(&apply_lock);
 
@@ -840,7 +834,6 @@ int dss_mgr_unset_device(struct omap_overlay_manager *mgr)
 
 	mgr->device->manager = NULL;
 	mgr->device = NULL;
-	mgr->device_changed = true;
 
 	mutex_unlock(&apply_lock);
 
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index e629b0de3262..98fc0267dd9e 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -426,8 +426,6 @@ struct omap_overlay_manager {
 	/* dynamic fields */
 	struct omap_dss_device *device;
 
-	bool device_changed;
-
 	int (*set_device)(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev);
 	int (*unset_device)(struct omap_overlay_manager *mgr);

From 841c09c7975c67fe7741564d98265de28a5764d0 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 15:25:53 +0200
Subject: [PATCH 070/108] OMAPDSS: APPLY: add dss_apply_ovl_enable()

Add a helper function dss_apply_ovl_enable(), which is similar to the
main apply() function: dss_apply_ovl_enable() applies the given overlay
enable-status to ovl_priv_data, and sets the dirty flag.

The difference between the helper function and the previous direct use
of the fields is that the helper function will not do anything if the
enable state is already the same as given in the parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 70154092d731..ec2183721642 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -646,6 +646,19 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	return r;
 }
 
+static void dss_apply_ovl_enable(struct omap_overlay *ovl, bool enable)
+{
+	struct ovl_priv_data *op;
+
+	op = get_ovl_priv(ovl);
+
+	if (op->enabled == enable)
+		return;
+
+	op->enabled = enable;
+	op->extra_info_dirty = true;
+}
+
 static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
@@ -999,8 +1012,7 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	op->enabled = true;
-	op->extra_info_dirty = true;
+	dss_apply_ovl_enable(ovl, true);
 
 	dss_ovl_setup_fifo(ovl);
 
@@ -1031,8 +1043,7 @@ int dss_ovl_disable(struct omap_overlay *ovl)
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	op->enabled = false;
-	op->extra_info_dirty = true;
+	dss_apply_ovl_enable(ovl, false);
 
 	dss_write_regs();
 

From e4f7ad702ef271d2b0c03e9904b05f9bcbf0808b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 16:01:33 +0200
Subject: [PATCH 071/108] OMAPDSS: APPLY: skip enable/disable if already
 enabled/disabled

Add checks to dss_mgr_enable, dss_mgr_disable, dss_ovl_enable,
dss_ovl_disable that check if the state is already the same as given in
the parameters, and exit if so.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index ec2183721642..27d13bd9ed10 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -724,6 +724,9 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 
 	mutex_lock(&apply_lock);
 
+	if (mp->enabled)
+		goto out;
+
 	spin_lock_irqsave(&data_lock, flags);
 
 	mp->enabled = true;
@@ -740,6 +743,7 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 	if (!mgr_manual_update(mgr))
 		dispc_mgr_enable(mgr->id, true);
 
+out:
 	mutex_unlock(&apply_lock);
 }
 
@@ -750,6 +754,9 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 
 	mutex_lock(&apply_lock);
 
+	if (!mp->enabled)
+		goto out;
+
 	if (!mgr_manual_update(mgr))
 		dispc_mgr_enable(mgr->id, false);
 
@@ -760,6 +767,7 @@ void dss_mgr_disable(struct omap_overlay_manager *mgr)
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
+out:
 	mutex_unlock(&apply_lock);
 }
 
@@ -1005,6 +1013,11 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 
 	mutex_lock(&apply_lock);
 
+	if (op->enabled) {
+		r = 0;
+		goto err;
+	}
+
 	if (ovl->manager == NULL || ovl->manager->device == NULL) {
 		r = -EINVAL;
 		goto err;
@@ -1036,6 +1049,11 @@ int dss_ovl_disable(struct omap_overlay *ovl)
 
 	mutex_lock(&apply_lock);
 
+	if (!op->enabled) {
+		r = 0;
+		goto err;
+	}
+
 	if (ovl->manager == NULL || ovl->manager->device == NULL) {
 		r = -EINVAL;
 		goto err;

From f1577ce18004337ec2f6f48109ca14cac10a0a4f Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 14:37:48 +0200
Subject: [PATCH 072/108] OMAPDSS: APPLY: add wait_pending_extra_info_updates()

Add wait_pending_extra_info_updates() function which can be used to wait
until any extra_info changes have been taken into use by the hardware.
This can be only called when holding the apply mutex, so that other
threads cannot insert new extra_info changes.

This will be used to handle fifo-configurations.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 70 +++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 27d13bd9ed10..443f31e74a75 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -106,6 +106,7 @@ static struct {
 static spinlock_t data_lock;
 /* lock for blocking functions */
 static DEFINE_MUTEX(apply_lock);
+static DECLARE_COMPLETION(extra_updated_completion);
 
 static void dss_register_vsync_isr(void);
 
@@ -232,6 +233,70 @@ static bool need_go(struct omap_overlay_manager *mgr)
 	return false;
 }
 
+/* returns true if an extra_info field is currently being updated */
+static bool extra_info_update_ongoing(void)
+{
+	const int num_ovls = omap_dss_get_num_overlays();
+	struct ovl_priv_data *op;
+	struct omap_overlay *ovl;
+	struct mgr_priv_data *mp;
+	int i;
+	bool eid;
+
+	for (i = 0; i < num_ovls; ++i) {
+		ovl = omap_dss_get_overlay(i);
+		op = get_ovl_priv(ovl);
+
+		if (!op->enabled)
+			continue;
+
+		mp = get_mgr_priv(ovl->manager);
+
+		if (!mp->enabled)
+			continue;
+
+		eid = op->extra_info_dirty || op->shadow_extra_info_dirty;
+
+		if (!eid)
+			continue;
+
+		if (ovl_manual_update(ovl) && !mp->updating)
+			continue;
+
+		return true;
+	}
+
+	return false;
+}
+
+/* wait until no extra_info updates are pending */
+static void wait_pending_extra_info_updates(void)
+{
+	bool updating;
+	unsigned long flags;
+	unsigned long t;
+
+	spin_lock_irqsave(&data_lock, flags);
+
+	updating = extra_info_update_ongoing();
+
+	if (!updating) {
+		spin_unlock_irqrestore(&data_lock, flags);
+		return;
+	}
+
+	init_completion(&extra_updated_completion);
+
+	spin_unlock_irqrestore(&data_lock, flags);
+
+	t = msecs_to_jiffies(500);
+	wait_for_completion_timeout(&extra_updated_completion, t);
+
+	updating = extra_info_update_ongoing();
+
+	WARN_ON(updating);
+}
+
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
@@ -553,6 +618,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 {
 	const int num_mgrs = dss_feat_get_num_mgrs();
 	int i;
+	bool extra_updating;
 
 	spin_lock(&data_lock);
 
@@ -582,6 +648,10 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 
 	dss_write_regs();
 
+	extra_updating = extra_info_update_ongoing();
+	if (!extra_updating)
+		complete_all(&extra_updated_completion);
+
 	if (!need_isr())
 		dss_unregister_vsync_isr();
 

From e70f98acaa84ec9ad55e544d0dc8b2d0a36bbeca Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 16 Nov 2011 16:53:44 +0200
Subject: [PATCH 073/108] OMAPDSS: APPLY: remove runtime_get

apply.c no longer touches any registers if an output is not enabled.
This means that we don't need to do dispc_runtime_get() anymore, and the
calls can be removed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 443f31e74a75..4cc7c37acbb4 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -688,16 +688,11 @@ static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
 
 int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 {
-	int r;
 	unsigned long flags;
 	struct omap_overlay *ovl;
 
 	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
 
-	r = dispc_runtime_get();
-	if (r)
-		return r;
-
 	spin_lock_irqsave(&data_lock, flags);
 
 	/* Configure overlays */
@@ -711,9 +706,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
-	dispc_runtime_put();
-
-	return r;
+	return 0;
 }
 
 static void dss_apply_ovl_enable(struct omap_overlay *ovl, bool enable)

From 9d11c321a84266db2dba82cfb0d9d3bc17c326a8 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 18 Nov 2011 12:38:38 +0200
Subject: [PATCH 074/108] OMAPDSS: Add comments about blocking of ovl/mgr
 functions

Add comments specifying what ovl/mgr functions may block.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/video/omapdss.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 98fc0267dd9e..39862b8c9805 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -384,6 +384,17 @@ struct omap_overlay {
 	/* dynamic fields */
 	struct omap_overlay_manager *manager;
 
+	/*
+	 * The following functions do not block:
+	 *
+	 * is_enabled
+	 * set_overlay_info
+	 * get_overlay_info
+	 *
+	 * The rest of the functions may block and cannot be called from
+	 * interrupt context
+	 */
+
 	int (*enable)(struct omap_overlay *ovl);
 	int (*disable)(struct omap_overlay *ovl);
 	bool (*is_enabled)(struct omap_overlay *ovl);
@@ -426,6 +437,17 @@ struct omap_overlay_manager {
 	/* dynamic fields */
 	struct omap_dss_device *device;
 
+	/*
+	 * The following functions do not block:
+	 *
+	 * set_manager_info
+	 * get_manager_info
+	 * apply
+	 *
+	 * The rest of the functions may block and cannot be called from
+	 * interrupt context
+	 */
+
 	int (*set_device)(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev);
 	int (*unset_device)(struct omap_overlay_manager *mgr);

From fcc764dca80ead39b7391ff2c67a6b78de16d7a9 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 17 Nov 2011 14:26:48 +0200
Subject: [PATCH 075/108] OMAPDSS: APPLY: add dss_ovl_simple_check()

Add dss_ovl_simple_check() which is used to check the validity of
certain overlay attributes. Only attributes that can be checked
independently, without knowing the display being used, is done here
(thus "simple").

We can use this function in dss_ovl_set_info().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 40 +++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 4cc7c37acbb4..dccddd264436 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -928,12 +928,52 @@ err:
 }
 
 
+static int dss_ovl_simple_check(struct omap_overlay *ovl,
+		const struct omap_overlay_info *info)
+{
+	if (info->paddr == 0) {
+		DSSERR("check_overlay: paddr cannot be 0\n");
+		return -EINVAL;
+	}
+
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+		if (info->out_width != 0 && info->width != info->out_width) {
+			DSSERR("check_overlay: overlay %d doesn't support "
+					"scaling\n", ovl->id);
+			return -EINVAL;
+		}
+
+		if (info->out_height != 0 && info->height != info->out_height) {
+			DSSERR("check_overlay: overlay %d doesn't support "
+					"scaling\n", ovl->id);
+			return -EINVAL;
+		}
+	}
+
+	if ((ovl->supported_modes & info->color_mode) == 0) {
+		DSSERR("check_overlay: overlay %d doesn't support mode %d\n",
+				ovl->id, info->color_mode);
+		return -EINVAL;
+	}
+
+	if (info->zorder >= omap_dss_get_num_overlays()) {
+		DSSERR("check_overlay: zorder %d too high\n", info->zorder);
+		return -EINVAL;
+	}
+
+	return 0;
+}
 
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
 	unsigned long flags;
+	int r;
+
+	r = dss_ovl_simple_check(ovl, info);
+	if (r)
+		return r;
 
 	spin_lock_irqsave(&data_lock, flags);
 

From f17d04fbbb201c05700359e94e2747c210f99852 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 17 Nov 2011 14:31:09 +0200
Subject: [PATCH 076/108] OMAPDSS: APPLY: add dss_mgr_simple_check()

Add dss_mgr_simple_check() which is used to check the validity of
certain manager attributes. Only attributes that can be checked
independently, without knowing the display being used, is done here
(thus "simple").

We can use this function in dss_mgr_set_info().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index dccddd264436..242cb1c983c0 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -834,11 +834,35 @@ out:
 	mutex_unlock(&apply_lock);
 }
 
+static int dss_mgr_simple_check(struct omap_overlay_manager *mgr,
+		const struct omap_overlay_manager_info *info)
+{
+	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
+		/*
+		 * OMAP3 supports only graphics source transparency color key
+		 * and alpha blending simultaneously. See TRM 15.4.2.4.2.2
+		 * Alpha Mode.
+		 */
+		if (info->partial_alpha_enabled && info->trans_enabled
+			&& info->trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) {
+			DSSERR("check_manager: illegal transparency key\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
 int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
+	int r;
+
+	r = dss_mgr_simple_check(mgr, info);
+	if (r)
+		return r;
 
 	spin_lock_irqsave(&data_lock, flags);
 

From 39518356ccd6e439abae24e1a24d84dcd12ff207 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 17 Nov 2011 17:35:28 +0200
Subject: [PATCH 077/108] OMAPDSS: APPLY: add checking of ovls/mgrs settings

Add checks for overlay and manager settings. The checks are a bit
complex, as we need to observe the bigger picture instead of overlays
and managers independently. Things like the used display and the zorder
of other overlays affect the validity of the settings.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 215 +++++++++++++++++++++++++++++++-
 1 file changed, 212 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 242cb1c983c0..6eb48586501c 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -166,6 +166,169 @@ static bool mgr_manual_update(struct omap_overlay_manager *mgr)
 	return mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
 }
 
+/* Check if overlay parameters are compatible with display */
+static int dss_ovl_check(struct omap_overlay *ovl,
+		struct omap_overlay_info *info, struct omap_dss_device *dssdev)
+{
+	u16 outw, outh;
+	u16 dw, dh;
+
+	if (dssdev == NULL)
+		return 0;
+
+	dssdev->driver->get_resolution(dssdev, &dw, &dh);
+
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+		outw = info->width;
+		outh = info->height;
+	} else {
+		if (info->out_width == 0)
+			outw = info->width;
+		else
+			outw = info->out_width;
+
+		if (info->out_height == 0)
+			outh = info->height;
+		else
+			outh = info->out_height;
+	}
+
+	if (dw < info->pos_x + outw) {
+		DSSERR("overlay %d horizontally not inside the display area "
+				"(%d + %d >= %d)\n",
+				ovl->id, info->pos_x, outw, dw);
+		return -EINVAL;
+	}
+
+	if (dh < info->pos_y + outh) {
+		DSSERR("overlay %d vertically not inside the display area "
+				"(%d + %d >= %d)\n",
+				ovl->id, info->pos_y, outh, dh);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
+		struct omap_overlay_info **overlay_infos)
+{
+	struct omap_overlay *ovl1, *ovl2;
+	struct ovl_priv_data *op1, *op2;
+	struct omap_overlay_info *info1, *info2;
+
+	list_for_each_entry(ovl1, &mgr->overlays, list) {
+		op1 = get_ovl_priv(ovl1);
+		info1 = overlay_infos[ovl1->id];
+
+		if (info1 == NULL)
+			continue;
+
+		list_for_each_entry(ovl2, &mgr->overlays, list) {
+			if (ovl1 == ovl2)
+				continue;
+
+			op2 = get_ovl_priv(ovl2);
+			info2 = overlay_infos[ovl2->id];
+
+			if (info2 == NULL)
+				continue;
+
+			if (info1->zorder == info2->zorder) {
+				DSSERR("overlays %d and %d have the same "
+						"zorder %d\n",
+					ovl1->id, ovl2->id, info1->zorder);
+				return -EINVAL;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int dss_mgr_check(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev,
+		struct omap_overlay_manager_info *info,
+		struct omap_overlay_info **overlay_infos)
+{
+	struct omap_overlay *ovl;
+	int r;
+
+	if (dss_has_feature(FEAT_ALPHA_FREE_ZORDER)) {
+		r = dss_mgr_check_zorder(mgr, overlay_infos);
+		if (r)
+			return r;
+	}
+
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		struct omap_overlay_info *oi;
+		int r;
+
+		oi = overlay_infos[ovl->id];
+
+		if (oi == NULL)
+			continue;
+
+		r = dss_ovl_check(ovl, oi, dssdev);
+		if (r)
+			return r;
+	}
+
+	return 0;
+}
+static int dss_check_settings_low(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev, bool applying)
+{
+	struct omap_overlay_info *oi;
+	struct omap_overlay_manager_info *mi;
+	struct omap_overlay *ovl;
+	struct omap_overlay_info *ois[MAX_DSS_OVERLAYS];
+	struct ovl_priv_data *op;
+	struct mgr_priv_data *mp;
+
+	mp = get_mgr_priv(mgr);
+
+	if (applying && mp->user_info_dirty)
+		mi = &mp->user_info;
+	else
+		mi = &mp->info;
+
+	/* collect the infos to be tested into the array */
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		op = get_ovl_priv(ovl);
+
+		if (!op->enabled)
+			oi = NULL;
+		else if (applying && op->user_info_dirty)
+			oi = &op->user_info;
+		else
+			oi = &op->info;
+
+		ois[ovl->id] = oi;
+	}
+
+	return dss_mgr_check(mgr, dssdev, mi, ois);
+}
+
+/*
+ * check manager and overlay settings using overlay_info from data->info
+ */
+static int dss_check_settings(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev)
+{
+	return dss_check_settings_low(mgr, dssdev, false);
+}
+
+/*
+ * check manager and overlay settings using overlay_info from ovl->info if
+ * dirty and from data->info otherwise
+ */
+static int dss_check_settings_apply(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev)
+{
+	return dss_check_settings_low(mgr, dssdev, true);
+}
+
 static bool need_isr(void)
 {
 	const int num_mgrs = dss_feat_get_num_mgrs();
@@ -517,6 +680,7 @@ static void dss_write_regs(void)
 	for (i = 0; i < num_mgrs; ++i) {
 		struct omap_overlay_manager *mgr;
 		struct mgr_priv_data *mp;
+		int r;
 
 		mgr = omap_dss_get_overlay_manager(i);
 		mp = get_mgr_priv(mgr);
@@ -524,6 +688,13 @@ static void dss_write_regs(void)
 		if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
 			continue;
 
+		r = dss_check_settings(mgr, mgr->device);
+		if (r) {
+			DSSERR("cannot write registers for manager %s: "
+					"illegal configuration\n", mgr->name);
+			continue;
+		}
+
 		dss_mgr_write_regs(mgr);
 
 		if (need_go(mgr)) {
@@ -541,11 +712,19 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
+	int r;
 
 	spin_lock_irqsave(&data_lock, flags);
 
 	WARN_ON(mp->updating);
 
+	r = dss_check_settings(mgr, mgr->device);
+	if (r) {
+		DSSERR("cannot start manual update: illegal configuration\n");
+		spin_unlock_irqrestore(&data_lock, flags);
+		return;
+	}
+
 	dss_mgr_write_regs(mgr);
 
 	mp->updating = true;
@@ -690,11 +869,19 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 {
 	unsigned long flags;
 	struct omap_overlay *ovl;
+	int r;
 
 	DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
 
 	spin_lock_irqsave(&data_lock, flags);
 
+	r = dss_check_settings_apply(mgr, mgr->device);
+	if (r) {
+		spin_unlock_irqrestore(&data_lock, flags);
+		DSSERR("failed to apply settings: illegal configuration.\n");
+		return r;
+	}
+
 	/* Configure overlays */
 	list_for_each_entry(ovl, &mgr->overlays, list)
 		omap_dss_mgr_apply_ovl(ovl);
@@ -784,6 +971,7 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
+	int r;
 
 	mutex_lock(&apply_lock);
 
@@ -792,6 +980,16 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 
 	spin_lock_irqsave(&data_lock, flags);
 
+	mp->enabled = true;
+	r = dss_check_settings(mgr, mgr->device);
+	mp->enabled = false;
+	if (r) {
+		DSSERR("failed to enable manager %d: check_settings failed\n",
+				mgr->id);
+		spin_unlock_irqrestore(&data_lock, flags);
+		goto out;
+	}
+
 	mp->enabled = true;
 
 	dss_mgr_setup_fifos(mgr);
@@ -1142,16 +1340,25 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 
 	if (op->enabled) {
 		r = 0;
-		goto err;
+		goto err1;
 	}
 
 	if (ovl->manager == NULL || ovl->manager->device == NULL) {
 		r = -EINVAL;
-		goto err;
+		goto err1;
 	}
 
 	spin_lock_irqsave(&data_lock, flags);
 
+	op->enabled = true;
+	r = dss_check_settings(ovl->manager, ovl->manager->device);
+	op->enabled = false;
+	if (r) {
+		DSSERR("failed to enable overlay %d: check_settings failed\n",
+				ovl->id);
+		goto err2;
+	}
+
 	dss_apply_ovl_enable(ovl, true);
 
 	dss_ovl_setup_fifo(ovl);
@@ -1163,7 +1370,9 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 	mutex_unlock(&apply_lock);
 
 	return 0;
-err:
+err2:
+	spin_unlock_irqrestore(&data_lock, flags);
+err1:
 	mutex_unlock(&apply_lock);
 	return r;
 }

From 2a4ee7ee685f3bf996461ed0d148857ce85a00e2 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 21 Nov 2011 13:34:48 +0200
Subject: [PATCH 078/108] OMAPDSS: APPLY: add return value to dss_mgr_enable()

Now that dss_mgr_enable() can fail due to checks, make it return the
error value.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 12 +++++++++---
 drivers/video/omap2/dss/dss.h   |  2 +-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 6eb48586501c..614592c7a75c 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -967,7 +967,7 @@ static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
 	}
 }
 
-void dss_mgr_enable(struct omap_overlay_manager *mgr)
+int dss_mgr_enable(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	unsigned long flags;
@@ -986,8 +986,7 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 	if (r) {
 		DSSERR("failed to enable manager %d: check_settings failed\n",
 				mgr->id);
-		spin_unlock_irqrestore(&data_lock, flags);
-		goto out;
+		goto err;
 	}
 
 	mp->enabled = true;
@@ -1006,6 +1005,13 @@ void dss_mgr_enable(struct omap_overlay_manager *mgr)
 
 out:
 	mutex_unlock(&apply_lock);
+
+	return 0;
+
+err:
+	spin_unlock_irqrestore(&data_lock, flags);
+	mutex_unlock(&apply_lock);
+	return r;
 }
 
 void dss_mgr_disable(struct omap_overlay_manager *mgr)
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 6fce3108c060..45b724ae04fe 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -170,7 +170,7 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl);
 void dss_mgr_start_update(struct omap_overlay_manager *mgr);
 int omap_dss_mgr_apply(struct omap_overlay_manager *mgr);
 
-void dss_mgr_enable(struct omap_overlay_manager *mgr);
+int dss_mgr_enable(struct omap_overlay_manager *mgr);
 void dss_mgr_disable(struct omap_overlay_manager *mgr);
 int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info);

From 33ca237f80555cde41c17682991a2b58d2f14da5 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 21 Nov 2011 13:42:58 +0200
Subject: [PATCH 079/108] OMAPDSS: check the return value of dss_mgr_enable()

Now that dss_mgr_enable returns an error value, check it in all the
places dss_mgr_enable is used, and bail out properly.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dpi.c  |  5 ++++-
 drivers/video/omap2/dss/dsi.c  | 11 ++++++++++-
 drivers/video/omap2/dss/hdmi.c |  9 ++++++++-
 drivers/video/omap2/dss/sdi.c  |  6 +++++-
 drivers/video/omap2/dss/venc.c | 26 +++++++++++++++++++++++---
 5 files changed, 50 insertions(+), 7 deletions(-)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 79c4df3c9a88..395d658a94fc 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -223,10 +223,13 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 
 	mdelay(2);
 
-	dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(dssdev->manager);
+	if (r)
+		goto err_mgr_enable;
 
 	return 0;
 
+err_mgr_enable:
 err_set_mode:
 	if (dpi_use_dsi_pll(dssdev))
 		dsi_pll_uninit(dpi.dsidev, true);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 9cb2e827c001..4dc98b692267 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3979,6 +3979,7 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 	int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
 	u8 data_type;
 	u16 word_count;
+	int r;
 
 	if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
 		switch (dssdev->panel.dsi_pix_fmt) {
@@ -4013,7 +4014,15 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 		dsi_if_enable(dsidev, true);
 	}
 
-	dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(dssdev->manager);
+	if (r) {
+		if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+			dsi_if_enable(dsidev, false);
+			dsi_vc_enable(dsidev, channel, false);
+		}
+
+		return r;
+	}
 
 	return 0;
 }
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index e245a2bbba9d..b064762b6994 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -387,9 +387,16 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 
 	hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 1);
 
-	dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(dssdev->manager);
+	if (r)
+		goto err_mgr_enable;
 
 	return 0;
+
+err_mgr_enable:
+	hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 0);
+	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
+	hdmi.ip_data.ops->pll_disable(&hdmi.ip_data);
 err:
 	hdmi_runtime_put();
 	return -EIO;
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 02da8beb7304..8266ca0d666b 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -123,10 +123,14 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
 		goto err_sdi_enable;
 	mdelay(2);
 
-	dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(dssdev->manager);
+	if (r)
+		goto err_mgr_enable;
 
 	return 0;
 
+err_mgr_enable:
+	dss_sdi_disable();
 err_sdi_enable:
 err_set_dispc_clock_div:
 err_set_dss_clock_div:
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 101fcd77a50d..b3e9f9091581 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -417,9 +417,10 @@ static const struct venc_config *venc_timings_to_config(
 	BUG();
 }
 
-static void venc_power_on(struct omap_dss_device *dssdev)
+static int venc_power_on(struct omap_dss_device *dssdev)
 {
 	u32 l;
+	int r;
 
 	venc_reset();
 	venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
@@ -447,7 +448,22 @@ static void venc_power_on(struct omap_dss_device *dssdev)
 	if (dssdev->platform_enable)
 		dssdev->platform_enable(dssdev);
 
-	dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(dssdev->manager);
+	if (r)
+		goto err;
+
+	return 0;
+
+err:
+	venc_write_reg(VENC_OUTPUT_CONTROL, 0);
+	dss_set_dac_pwrdn_bgz(0);
+
+	if (dssdev->platform_disable)
+		dssdev->platform_disable(dssdev);
+
+	regulator_disable(venc.vdda_dac_reg);
+
+	return r;
 }
 
 static void venc_power_off(struct omap_dss_device *dssdev)
@@ -504,7 +520,9 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)
 	if (r)
 		goto err1;
 
-	venc_power_on(dssdev);
+	r = venc_power_on(dssdev);
+	if (r)
+		goto err2;
 
 	venc.wss_data = 0;
 
@@ -512,6 +530,8 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)
 
 	mutex_unlock(&venc.venc_lock);
 	return 0;
+err2:
+	venc_runtime_put();
 err1:
 	omap_dss_stop_device(dssdev);
 err0:

From cc372d84e231ea9f574ef5de9a7ab39dee5a021d Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 25 Nov 2011 17:22:53 +0200
Subject: [PATCH 080/108] OMAPDSS: APPLY: fix extra_info_update_ongoing

extra_info_update_ongoing() skipped checks for overlays that were marked
as disabled. This doesn't work, as the enable status of an overlay is in
the extra_info group, and thus extra_info_update_ongoing() reports false
when we are disabling an overlay. This causes
wait_pending_extra_info_updates() to not wait for the ongoing overlay
disable.

This patch changes extra_info_update_ongoing() to check the state of
overlays marked as disabled.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 614592c7a75c..5d205ada30de 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -410,9 +410,6 @@ static bool extra_info_update_ongoing(void)
 		ovl = omap_dss_get_overlay(i);
 		op = get_ovl_priv(ovl);
 
-		if (!op->enabled)
-			continue;
-
 		mp = get_mgr_priv(ovl->manager);
 
 		if (!mp->enabled)

From 9f808956d3cd07c8dc69e213931b19bad56344fb Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 25 Nov 2011 17:26:13 +0200
Subject: [PATCH 081/108] OMAPDSS: APPLY: fix need_isr

need_isr() should return true whenever there's work that needs to be
handled in the VSYNC/FRAMEDONE irq handler. However, need_isr() is
missing some cases where we need the irq handler.

This patch adds checks for shadow dirty flags, so that the irq handler
is started/kept running while shadow dirty flags are set.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 5d205ada30de..98fef08da3ba 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -358,16 +358,38 @@ static bool need_isr(void)
 			if (mp->info_dirty)
 				return true;
 
+			/* to set GO bit */
+			if (mp->shadow_info_dirty)
+				return true;
+
 			list_for_each_entry(ovl, &mgr->overlays, list) {
 				struct ovl_priv_data *op;
 
 				op = get_ovl_priv(ovl);
 
+				/*
+				 * NOTE: we check extra_info flags even for
+				 * disabled overlays, as extra_infos need to be
+				 * always written.
+				 */
+
+				/* to write new values to registers */
+				if (op->extra_info_dirty)
+					return true;
+
+				/* to set GO bit */
+				if (op->shadow_extra_info_dirty)
+					return true;
+
 				if (!op->enabled)
 					continue;
 
 				/* to write new values to registers */
-				if (op->info_dirty || op->extra_info_dirty)
+				if (op->info_dirty)
+					return true;
+
+				/* to set GO bit */
+				if (op->shadow_info_dirty)
 					return true;
 			}
 		}

From 5b2141719aa8a14ebd242c60b4ce6a580276f7cd Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 25 Nov 2011 17:27:45 +0200
Subject: [PATCH 082/108] OMAPDSS: APPLY: clear shadow dirty flags only if GO
 had been set

In the apply irq handler the code currently clears the shadow dirty
flags whenever the manager in question is not busy (i.e. GO bit is
down). However, this is not quite right, as the GO bit may have never
been set.

While not done in the current code, the above would cause bug in
scenario where the registers are written, and thus shadow_dirty flag is
set, but the GO bit will be set only later. In this case the
shadow_dirty flags would be cleared, even if the HW is not using the new
configurations.

This patch fixes the issue by clearing the shadow flags only when the GO
bit is clear, and the GO bit had been set.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 98fef08da3ba..e2eaed2e9172 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -824,6 +824,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	for (i = 0; i < num_mgrs; i++) {
 		struct omap_overlay_manager *mgr;
 		struct mgr_priv_data *mp;
+		bool was_updating;
 
 		mgr = omap_dss_get_overlay_manager(i);
 		mp = get_mgr_priv(mgr);
@@ -831,15 +832,17 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 		if (!mp->enabled)
 			continue;
 
+		was_updating = mp->updating;
 		mp->updating = dispc_mgr_is_enabled(i);
 
 		if (!mgr_manual_update(mgr)) {
+			bool was_busy = mp->busy;
 			mp->busy = dispc_mgr_go_busy(i);
 
-			if (!mp->busy)
+			if (was_busy && !mp->busy)
 				mgr_clear_shadow_dirty(mgr);
 		} else {
-			if (!mp->updating)
+			if (was_updating && !mp->updating)
 				mgr_clear_shadow_dirty(mgr);
 		}
 	}

From 3ab15b2aa70369e0360f12e35e47bca1a269138b Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 25 Nov 2011 17:32:20 +0200
Subject: [PATCH 083/108] OMAPDSS: APPLY: add dss_set_go_bits()

Currently dss_write_regs() implicitely sets the GO bits for all managers
with shadow dirty flags set. This is a bit misleading, as one does not
presume "write registers" function to also set the GO bit.

Thus this patch splits the setting of GO bits into a separate function,
dss_set_go_bits, which is used after writing the registers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 43 +++++++++++++++++++++++++--------
 1 file changed, 33 insertions(+), 10 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index e2eaed2e9172..f54c17f849b7 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -715,18 +715,37 @@ static void dss_write_regs(void)
 		}
 
 		dss_mgr_write_regs(mgr);
-
-		if (need_go(mgr)) {
-			mp->busy = true;
-
-			if (!dss_data.irq_enabled && need_isr())
-				dss_register_vsync_isr();
-
-			dispc_mgr_go(mgr->id);
-		}
 	}
 }
 
+static void dss_set_go_bits(void)
+{
+	const int num_mgrs = omap_dss_get_num_overlay_managers();
+	int i;
+
+	for (i = 0; i < num_mgrs; ++i) {
+		struct omap_overlay_manager *mgr;
+		struct mgr_priv_data *mp;
+
+		mgr = omap_dss_get_overlay_manager(i);
+		mp = get_mgr_priv(mgr);
+
+		if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
+			continue;
+
+		if (!need_go(mgr))
+			continue;
+
+		mp->busy = true;
+
+		if (!dss_data.irq_enabled && need_isr())
+			dss_register_vsync_isr();
+
+		dispc_mgr_go(mgr->id);
+	}
+
+}
+
 void dss_mgr_start_update(struct omap_overlay_manager *mgr)
 {
 	struct mgr_priv_data *mp = get_mgr_priv(mgr);
@@ -848,6 +867,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
 	}
 
 	dss_write_regs();
+	dss_set_go_bits();
 
 	extra_updating = extra_info_update_ongoing();
 	if (!extra_updating)
@@ -912,6 +932,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
 	omap_dss_mgr_apply_mgr(mgr);
 
 	dss_write_regs();
+	dss_set_go_bits();
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
@@ -1016,6 +1037,7 @@ int dss_mgr_enable(struct omap_overlay_manager *mgr)
 	dss_mgr_setup_fifos(mgr);
 
 	dss_write_regs();
+	dss_set_go_bits();
 
 	if (!mgr_manual_update(mgr))
 		mp->updating = true;
@@ -1392,6 +1414,7 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 	dss_ovl_setup_fifo(ovl);
 
 	dss_write_regs();
+	dss_set_go_bits();
 
 	spin_unlock_irqrestore(&data_lock, flags);
 
@@ -1426,8 +1449,8 @@ int dss_ovl_disable(struct omap_overlay *ovl)
 	spin_lock_irqsave(&data_lock, flags);
 
 	dss_apply_ovl_enable(ovl, false);
-
 	dss_write_regs();
+	dss_set_go_bits();
 
 	spin_unlock_irqrestore(&data_lock, flags);
 

From 153b6e7357778267e6914f2370a059e79a751371 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 25 Nov 2011 17:35:35 +0200
Subject: [PATCH 084/108] OMAPDSS: APPLY: cleanup extra_info_update_ongoing

Trivial cleanup for extra_info_update_ongoing(), making the function a
bit cleaner.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index f54c17f849b7..b6e608386219 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -426,7 +426,6 @@ static bool extra_info_update_ongoing(void)
 	struct omap_overlay *ovl;
 	struct mgr_priv_data *mp;
 	int i;
-	bool eid;
 
 	for (i = 0; i < num_ovls; ++i) {
 		ovl = omap_dss_get_overlay(i);
@@ -437,15 +436,11 @@ static bool extra_info_update_ongoing(void)
 		if (!mp->enabled)
 			continue;
 
-		eid = op->extra_info_dirty || op->shadow_extra_info_dirty;
-
-		if (!eid)
+		if (!mp->updating)
 			continue;
 
-		if (ovl_manual_update(ovl) && !mp->updating)
-			continue;
-
-		return true;
+		if (op->extra_info_dirty || op->shadow_extra_info_dirty)
+			return true;
 	}
 
 	return false;

From 82153eda076ee4df434bb1008f24e46590f76dfc Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Sat, 26 Nov 2011 14:26:46 +0200
Subject: [PATCH 085/108] OMAPDSS: APPLY: add op->enabling

When we are enabling an overlay, there's a point in time when the
overlay is not actually enabled yet (nor do we want it to be enabled),
but we do want to check if the configuration for the overlay is valid,
and to calculate correct fifo thresholds for the soon-to-be-enabled
overlay.

Current code handled this in a hacky way, setting op->enabled to true
temporarily when calling functions that need to consider the state when
the overlay is enabled.

This patch makes this a bit cleaner, adding "enabling" field, which is
set when the overlay is not yet enabled but should be considered in the
checks and calculations.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index b6e608386219..c38c015d60e2 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -72,6 +72,12 @@ struct ovl_priv_data {
 	bool enabled;
 	enum omap_channel channel;
 	u32 fifo_low, fifo_high;
+
+	/*
+	 * True if overlay is to be enabled. Used to check and calculate configs
+	 * for the overlay before it is enabled in the HW.
+	 */
+	bool enabling;
 };
 
 struct mgr_priv_data {
@@ -297,7 +303,7 @@ static int dss_check_settings_low(struct omap_overlay_manager *mgr,
 	list_for_each_entry(ovl, &mgr->overlays, list) {
 		op = get_ovl_priv(ovl);
 
-		if (!op->enabled)
+		if (!op->enabled && !op->enabling)
 			oi = NULL;
 		else if (applying && op->user_info_dirty)
 			oi = &op->user_info;
@@ -998,7 +1004,7 @@ static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
 	list_for_each_entry(ovl, &mgr->overlays, list) {
 		op = get_ovl_priv(ovl);
 
-		if (!op->enabled)
+		if (!op->enabled && !op->enabling)
 			continue;
 
 		dss_ovl_setup_fifo(ovl);
@@ -1395,19 +1401,20 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 
 	spin_lock_irqsave(&data_lock, flags);
 
-	op->enabled = true;
+	op->enabling = true;
+
 	r = dss_check_settings(ovl->manager, ovl->manager->device);
-	op->enabled = false;
 	if (r) {
 		DSSERR("failed to enable overlay %d: check_settings failed\n",
 				ovl->id);
 		goto err2;
 	}
 
-	dss_apply_ovl_enable(ovl, true);
-
 	dss_ovl_setup_fifo(ovl);
 
+	op->enabling = false;
+	dss_apply_ovl_enable(ovl, true);
+
 	dss_write_regs();
 	dss_set_go_bits();
 
@@ -1417,6 +1424,7 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 
 	return 0;
 err2:
+	op->enabling = false;
 	spin_unlock_irqrestore(&data_lock, flags);
 err1:
 	mutex_unlock(&apply_lock);

From a6b24f83601530f69ee36ac48527336e3c79bea8 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Sat, 26 Nov 2011 14:29:39 +0200
Subject: [PATCH 086/108] OMAPDSS: APPLY: simplify dss_mgr_enable

dss_mgr_enable() has some extra assigns to mp->enabled, which can be
removed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index c38c015d60e2..ef13fd65fcc1 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -1025,16 +1025,14 @@ int dss_mgr_enable(struct omap_overlay_manager *mgr)
 	spin_lock_irqsave(&data_lock, flags);
 
 	mp->enabled = true;
+
 	r = dss_check_settings(mgr, mgr->device);
-	mp->enabled = false;
 	if (r) {
 		DSSERR("failed to enable manager %d: check_settings failed\n",
 				mgr->id);
 		goto err;
 	}
 
-	mp->enabled = true;
-
 	dss_mgr_setup_fifos(mgr);
 
 	dss_write_regs();
@@ -1054,6 +1052,7 @@ out:
 	return 0;
 
 err:
+	mp->enabled = false;
 	spin_unlock_irqrestore(&data_lock, flags);
 	mutex_unlock(&apply_lock);
 	return r;

From 75ae118a0028810f93a746c25f4bb018fb044323 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Sat, 26 Nov 2011 14:36:19 +0200
Subject: [PATCH 087/108] OMAPDSS: APPLY: add dss_setup_fifos

Currently fifo threshold configuration is done per overlay or per
manager. However, when a fifo size configuration is added, we need to
always configure the thresholds for all overlays.

This patch prepares for that by changing the fifo threshold
configuration to always handle all overlays.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index ef13fd65fcc1..5f5812b528de 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -960,6 +960,9 @@ static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
 	u32 size, burst_size;
 	u32 fifo_low, fifo_high;
 
+	if (!op->enabled && !op->enabling)
+		return;
+
 	dssdev = ovl->manager->device;
 
 	size = dispc_ovl_get_fifo_size(ovl->id);
@@ -993,7 +996,6 @@ static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
 static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
 {
 	struct omap_overlay *ovl;
-	struct ovl_priv_data *op;
 	struct mgr_priv_data *mp;
 
 	mp = get_mgr_priv(mgr);
@@ -1001,13 +1003,19 @@ static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
 	if (!mp->enabled)
 		return;
 
-	list_for_each_entry(ovl, &mgr->overlays, list) {
-		op = get_ovl_priv(ovl);
-
-		if (!op->enabled && !op->enabling)
-			continue;
-
+	list_for_each_entry(ovl, &mgr->overlays, list)
 		dss_ovl_setup_fifo(ovl);
+}
+
+static void dss_setup_fifos(void)
+{
+	const int num_mgrs = omap_dss_get_num_overlay_managers();
+	struct omap_overlay_manager *mgr;
+	int i;
+
+	for (i = 0; i < num_mgrs; ++i) {
+		mgr = omap_dss_get_overlay_manager(i);
+		dss_mgr_setup_fifos(mgr);
 	}
 }
 
@@ -1033,7 +1041,7 @@ int dss_mgr_enable(struct omap_overlay_manager *mgr)
 		goto err;
 	}
 
-	dss_mgr_setup_fifos(mgr);
+	dss_setup_fifos();
 
 	dss_write_regs();
 	dss_set_go_bits();
@@ -1409,7 +1417,7 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 		goto err2;
 	}
 
-	dss_ovl_setup_fifo(ovl);
+	dss_setup_fifos();
 
 	op->enabling = false;
 	dss_apply_ovl_enable(ovl, true);

From 04576d415e01aa08752bf3884db9862cfbba9115 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Sat, 26 Nov 2011 14:39:16 +0200
Subject: [PATCH 088/108] OMAPDSS: APPLY: write fifo thresholds only if changed

Current code will always write fifo threshold values to the register,
even if they are the same as previously. Separate the setting of fifo
fields into a separate function, and only set new values if they are
different than the old ones.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 5f5812b528de..a3c75f582e1f 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -953,6 +953,19 @@ static void dss_apply_ovl_enable(struct omap_overlay *ovl, bool enable)
 	op->extra_info_dirty = true;
 }
 
+static void dss_apply_ovl_fifo_thresholds(struct omap_overlay *ovl,
+		u32 fifo_low, u32 fifo_high)
+{
+	struct ovl_priv_data *op = get_ovl_priv(ovl);
+
+	if (op->fifo_low == fifo_low && op->fifo_high == fifo_high)
+		return;
+
+	op->fifo_low = fifo_low;
+	op->fifo_high = fifo_high;
+	op->extra_info_dirty = true;
+}
+
 static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
 {
 	struct ovl_priv_data *op = get_ovl_priv(ovl);
@@ -988,9 +1001,7 @@ static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
 		BUG();
 	}
 
-	op->fifo_low = fifo_low;
-	op->fifo_high = fifo_high;
-	op->extra_info_dirty = true;
+	dss_apply_ovl_fifo_thresholds(ovl, fifo_low, fifo_high);
 }
 
 static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)

From 5af661ce1a8c7672364c2c911b76186589db0f0e Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 8 Dec 2011 10:27:14 +0200
Subject: [PATCH 089/108] OMAPDSS: APPLY: remove unused variables

dss_mgr_check_zorder() has two unused variables. Remove them.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index a3c75f582e1f..f8506d79a7f9 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -220,11 +220,9 @@ static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
 		struct omap_overlay_info **overlay_infos)
 {
 	struct omap_overlay *ovl1, *ovl2;
-	struct ovl_priv_data *op1, *op2;
 	struct omap_overlay_info *info1, *info2;
 
 	list_for_each_entry(ovl1, &mgr->overlays, list) {
-		op1 = get_ovl_priv(ovl1);
 		info1 = overlay_infos[ovl1->id];
 
 		if (info1 == NULL)
@@ -234,7 +232,6 @@ static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
 			if (ovl1 == ovl2)
 				continue;
 
-			op2 = get_ovl_priv(ovl2);
 			info2 = overlay_infos[ovl2->id];
 
 			if (info2 == NULL)

From 6ac48d1e3ac788ad1d54895acd83be26cefb4fe9 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Thu, 8 Dec 2011 10:32:37 +0200
Subject: [PATCH 090/108] OMAPDSS: APPLY: move check functions

The functions dss_ovl_check, dss_mgr_check_zorder, dss_mgr_check in
apply.c are not really part of the apply mechanism, and can be moved to
overlay.c and manager.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 107 ------------------------------
 drivers/video/omap2/dss/dss.h     |   6 ++
 drivers/video/omap2/dss/manager.c |  63 ++++++++++++++++++
 drivers/video/omap2/dss/overlay.c |  42 ++++++++++++
 4 files changed, 111 insertions(+), 107 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index f8506d79a7f9..12f2cdb65704 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -172,113 +172,6 @@ static bool mgr_manual_update(struct omap_overlay_manager *mgr)
 	return mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
 }
 
-/* Check if overlay parameters are compatible with display */
-static int dss_ovl_check(struct omap_overlay *ovl,
-		struct omap_overlay_info *info, struct omap_dss_device *dssdev)
-{
-	u16 outw, outh;
-	u16 dw, dh;
-
-	if (dssdev == NULL)
-		return 0;
-
-	dssdev->driver->get_resolution(dssdev, &dw, &dh);
-
-	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
-		outw = info->width;
-		outh = info->height;
-	} else {
-		if (info->out_width == 0)
-			outw = info->width;
-		else
-			outw = info->out_width;
-
-		if (info->out_height == 0)
-			outh = info->height;
-		else
-			outh = info->out_height;
-	}
-
-	if (dw < info->pos_x + outw) {
-		DSSERR("overlay %d horizontally not inside the display area "
-				"(%d + %d >= %d)\n",
-				ovl->id, info->pos_x, outw, dw);
-		return -EINVAL;
-	}
-
-	if (dh < info->pos_y + outh) {
-		DSSERR("overlay %d vertically not inside the display area "
-				"(%d + %d >= %d)\n",
-				ovl->id, info->pos_y, outh, dh);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
-		struct omap_overlay_info **overlay_infos)
-{
-	struct omap_overlay *ovl1, *ovl2;
-	struct omap_overlay_info *info1, *info2;
-
-	list_for_each_entry(ovl1, &mgr->overlays, list) {
-		info1 = overlay_infos[ovl1->id];
-
-		if (info1 == NULL)
-			continue;
-
-		list_for_each_entry(ovl2, &mgr->overlays, list) {
-			if (ovl1 == ovl2)
-				continue;
-
-			info2 = overlay_infos[ovl2->id];
-
-			if (info2 == NULL)
-				continue;
-
-			if (info1->zorder == info2->zorder) {
-				DSSERR("overlays %d and %d have the same "
-						"zorder %d\n",
-					ovl1->id, ovl2->id, info1->zorder);
-				return -EINVAL;
-			}
-		}
-	}
-
-	return 0;
-}
-
-static int dss_mgr_check(struct omap_overlay_manager *mgr,
-		struct omap_dss_device *dssdev,
-		struct omap_overlay_manager_info *info,
-		struct omap_overlay_info **overlay_infos)
-{
-	struct omap_overlay *ovl;
-	int r;
-
-	if (dss_has_feature(FEAT_ALPHA_FREE_ZORDER)) {
-		r = dss_mgr_check_zorder(mgr, overlay_infos);
-		if (r)
-			return r;
-	}
-
-	list_for_each_entry(ovl, &mgr->overlays, list) {
-		struct omap_overlay_info *oi;
-		int r;
-
-		oi = overlay_infos[ovl->id];
-
-		if (oi == NULL)
-			continue;
-
-		r = dss_ovl_check(ovl, oi, dssdev);
-		if (r)
-			return r;
-	}
-
-	return 0;
-}
 static int dss_check_settings_low(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev, bool applying)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 45b724ae04fe..20a88392ed24 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -209,12 +209,18 @@ void default_get_overlay_fifo_thresholds(enum omap_plane plane,
 /* manager */
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
+int dss_mgr_check(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev,
+		struct omap_overlay_manager_info *info,
+		struct omap_overlay_info **overlay_infos);
 
 /* overlay */
 void dss_init_overlays(struct platform_device *pdev);
 void dss_uninit_overlays(struct platform_device *pdev);
 void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
 void dss_recheck_connections(struct omap_dss_device *dssdev, bool force);
+int dss_ovl_check(struct omap_overlay *ovl,
+		struct omap_overlay_info *info, struct omap_dss_device *dssdev);
 
 /* DSS */
 int dss_init_platform_driver(void);
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 8c967ef2ae98..542258dbdccc 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -592,3 +592,66 @@ struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
 }
 EXPORT_SYMBOL(omap_dss_get_overlay_manager);
 
+static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
+		struct omap_overlay_info **overlay_infos)
+{
+	struct omap_overlay *ovl1, *ovl2;
+	struct omap_overlay_info *info1, *info2;
+
+	list_for_each_entry(ovl1, &mgr->overlays, list) {
+		info1 = overlay_infos[ovl1->id];
+
+		if (info1 == NULL)
+			continue;
+
+		list_for_each_entry(ovl2, &mgr->overlays, list) {
+			if (ovl1 == ovl2)
+				continue;
+
+			info2 = overlay_infos[ovl2->id];
+
+			if (info2 == NULL)
+				continue;
+
+			if (info1->zorder == info2->zorder) {
+				DSSERR("overlays %d and %d have the same "
+						"zorder %d\n",
+					ovl1->id, ovl2->id, info1->zorder);
+				return -EINVAL;
+			}
+		}
+	}
+
+	return 0;
+}
+
+int dss_mgr_check(struct omap_overlay_manager *mgr,
+		struct omap_dss_device *dssdev,
+		struct omap_overlay_manager_info *info,
+		struct omap_overlay_info **overlay_infos)
+{
+	struct omap_overlay *ovl;
+	int r;
+
+	if (dss_has_feature(FEAT_ALPHA_FREE_ZORDER)) {
+		r = dss_mgr_check_zorder(mgr, overlay_infos);
+		if (r)
+			return r;
+	}
+
+	list_for_each_entry(ovl, &mgr->overlays, list) {
+		struct omap_overlay_info *oi;
+		int r;
+
+		oi = overlay_infos[ovl->id];
+
+		if (oi == NULL)
+			continue;
+
+		r = dss_ovl_check(ovl, oi, dssdev);
+		if (r)
+			return r;
+	}
+
+	return 0;
+}
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 8d036e661a26..c91babfc44ca 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -595,3 +595,45 @@ void dss_uninit_overlays(struct platform_device *pdev)
 	num_overlays = 0;
 }
 
+int dss_ovl_check(struct omap_overlay *ovl,
+		struct omap_overlay_info *info, struct omap_dss_device *dssdev)
+{
+	u16 outw, outh;
+	u16 dw, dh;
+
+	if (dssdev == NULL)
+		return 0;
+
+	dssdev->driver->get_resolution(dssdev, &dw, &dh);
+
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+		outw = info->width;
+		outh = info->height;
+	} else {
+		if (info->out_width == 0)
+			outw = info->width;
+		else
+			outw = info->out_width;
+
+		if (info->out_height == 0)
+			outh = info->height;
+		else
+			outh = info->out_height;
+	}
+
+	if (dw < info->pos_x + outw) {
+		DSSERR("overlay %d horizontally not inside the display area "
+				"(%d + %d >= %d)\n",
+				ovl->id, info->pos_x, outw, dw);
+		return -EINVAL;
+	}
+
+	if (dh < info->pos_y + outh) {
+		DSSERR("overlay %d vertically not inside the display area "
+				"(%d + %d >= %d)\n",
+				ovl->id, info->pos_y, outh, dh);
+		return -EINVAL;
+	}
+
+	return 0;
+}

From f990544125b7599e537dbb17c511e68f2dbdb910 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@gmail.com>
Date: Fri, 9 Dec 2011 09:37:57 +0800
Subject: [PATCH 091/108] video: omap: Staticise non-exported symbols

These symbols are not used outside it's driver so no need to
make the symbol global.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap/lcd_ams_delta.c | 2 +-
 drivers/video/omap/lcd_h3.c        | 2 +-
 drivers/video/omap/lcd_htcherald.c | 2 +-
 drivers/video/omap/lcd_inn1510.c   | 2 +-
 drivers/video/omap/lcd_inn1610.c   | 2 +-
 drivers/video/omap/lcd_osk.c       | 2 +-
 drivers/video/omap/lcd_palmte.c    | 2 +-
 drivers/video/omap/lcd_palmtt.c    | 2 +-
 drivers/video/omap/lcd_palmz71.c   | 2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c
index 6978ae4ef83a..eb50a955ea7f 100644
--- a/drivers/video/omap/lcd_ams_delta.c
+++ b/drivers/video/omap/lcd_ams_delta.c
@@ -198,7 +198,7 @@ static int ams_delta_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver ams_delta_panel_driver = {
+static struct platform_driver ams_delta_panel_driver = {
 	.probe		= ams_delta_panel_probe,
 	.remove		= ams_delta_panel_remove,
 	.suspend	= ams_delta_panel_suspend,
diff --git a/drivers/video/omap/lcd_h3.c b/drivers/video/omap/lcd_h3.c
index 622ad839fd9d..baec34e40f98 100644
--- a/drivers/video/omap/lcd_h3.c
+++ b/drivers/video/omap/lcd_h3.c
@@ -113,7 +113,7 @@ static int h3_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver h3_panel_driver = {
+static struct platform_driver h3_panel_driver = {
 	.probe		= h3_panel_probe,
 	.remove		= h3_panel_remove,
 	.suspend	= h3_panel_suspend,
diff --git a/drivers/video/omap/lcd_htcherald.c b/drivers/video/omap/lcd_htcherald.c
index 4802419da83b..b1a022f52a39 100644
--- a/drivers/video/omap/lcd_htcherald.c
+++ b/drivers/video/omap/lcd_htcherald.c
@@ -104,7 +104,7 @@ static int htcherald_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver htcherald_panel_driver = {
+static struct platform_driver htcherald_panel_driver = {
 	.probe		= htcherald_panel_probe,
 	.remove		= htcherald_panel_remove,
 	.suspend	= htcherald_panel_suspend,
diff --git a/drivers/video/omap/lcd_inn1510.c b/drivers/video/omap/lcd_inn1510.c
index 3271f1643b26..d12994613bdf 100644
--- a/drivers/video/omap/lcd_inn1510.c
+++ b/drivers/video/omap/lcd_inn1510.c
@@ -98,7 +98,7 @@ static int innovator1510_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver innovator1510_panel_driver = {
+static struct platform_driver innovator1510_panel_driver = {
 	.probe		= innovator1510_panel_probe,
 	.remove		= innovator1510_panel_remove,
 	.suspend	= innovator1510_panel_suspend,
diff --git a/drivers/video/omap/lcd_inn1610.c b/drivers/video/omap/lcd_inn1610.c
index 12cc52a70f96..a95756bfda0e 100644
--- a/drivers/video/omap/lcd_inn1610.c
+++ b/drivers/video/omap/lcd_inn1610.c
@@ -122,7 +122,7 @@ static int innovator1610_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver innovator1610_panel_driver = {
+static struct platform_driver innovator1610_panel_driver = {
 	.probe		= innovator1610_panel_probe,
 	.remove		= innovator1610_panel_remove,
 	.suspend	= innovator1610_panel_suspend,
diff --git a/drivers/video/omap/lcd_osk.c b/drivers/video/omap/lcd_osk.c
index 6f8d13c41202..b985997c43a0 100644
--- a/drivers/video/omap/lcd_osk.c
+++ b/drivers/video/omap/lcd_osk.c
@@ -116,7 +116,7 @@ static int osk_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver osk_panel_driver = {
+static struct platform_driver osk_panel_driver = {
 	.probe		= osk_panel_probe,
 	.remove		= osk_panel_remove,
 	.suspend	= osk_panel_suspend,
diff --git a/drivers/video/omap/lcd_palmte.c b/drivers/video/omap/lcd_palmte.c
index 4cb301750d02..d79f436b398c 100644
--- a/drivers/video/omap/lcd_palmte.c
+++ b/drivers/video/omap/lcd_palmte.c
@@ -97,7 +97,7 @@ static int palmte_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver palmte_panel_driver = {
+static struct platform_driver palmte_panel_driver = {
 	.probe		= palmte_panel_probe,
 	.remove		= palmte_panel_remove,
 	.suspend	= palmte_panel_suspend,
diff --git a/drivers/video/omap/lcd_palmtt.c b/drivers/video/omap/lcd_palmtt.c
index b51b332e5a2b..c2e96a720978 100644
--- a/drivers/video/omap/lcd_palmtt.c
+++ b/drivers/video/omap/lcd_palmtt.c
@@ -102,7 +102,7 @@ static int palmtt_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver palmtt_panel_driver = {
+static struct platform_driver palmtt_panel_driver = {
 	.probe		= palmtt_panel_probe,
 	.remove		= palmtt_panel_remove,
 	.suspend	= palmtt_panel_suspend,
diff --git a/drivers/video/omap/lcd_palmz71.c b/drivers/video/omap/lcd_palmz71.c
index 2334e56536bc..1ab484759d81 100644
--- a/drivers/video/omap/lcd_palmz71.c
+++ b/drivers/video/omap/lcd_palmz71.c
@@ -98,7 +98,7 @@ static int palmz71_panel_resume(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver palmz71_panel_driver = {
+static struct platform_driver palmz71_panel_driver = {
 	.probe		= palmz71_panel_probe,
 	.remove		= palmz71_panel_remove,
 	.suspend	= palmz71_panel_suspend,

From f806f9b6b8ec2c8b6a3297e684bcb80f54e3dc98 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@gmail.com>
Date: Fri, 9 Dec 2011 09:59:56 +0800
Subject: [PATCH 092/108] video: omap: convert drivers/video/omap/* to use
 module_platform_driver()

This patch converts the drivers in drivers/video/omap/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: Jonathan McDowell <noodles@earth.li>
Cc: Cory Maccarrone <darkstar6262@gmail.com>
Cc: Laurent Gonzalez <palmte.linux@free.fr>
Cc: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap/lcd_ams_delta.c | 13 +------------
 drivers/video/omap/lcd_h3.c        | 14 +-------------
 drivers/video/omap/lcd_htcherald.c | 14 +-------------
 drivers/video/omap/lcd_inn1510.c   | 14 +-------------
 drivers/video/omap/lcd_inn1610.c   | 14 +-------------
 drivers/video/omap/lcd_osk.c       | 14 +-------------
 drivers/video/omap/lcd_palmte.c    | 14 +-------------
 drivers/video/omap/lcd_palmtt.c    | 13 +------------
 drivers/video/omap/lcd_palmz71.c   | 13 +------------
 9 files changed, 9 insertions(+), 114 deletions(-)

diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c
index eb50a955ea7f..0fdd6f6873bf 100644
--- a/drivers/video/omap/lcd_ams_delta.c
+++ b/drivers/video/omap/lcd_ams_delta.c
@@ -209,15 +209,4 @@ static struct platform_driver ams_delta_panel_driver = {
 	},
 };
 
-static int __init ams_delta_panel_drv_init(void)
-{
-	return platform_driver_register(&ams_delta_panel_driver);
-}
-
-static void __exit ams_delta_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&ams_delta_panel_driver);
-}
-
-module_init(ams_delta_panel_drv_init);
-module_exit(ams_delta_panel_drv_cleanup);
+module_platform_driver(ams_delta_panel_driver);
diff --git a/drivers/video/omap/lcd_h3.c b/drivers/video/omap/lcd_h3.c
index baec34e40f98..49bdeca81e50 100644
--- a/drivers/video/omap/lcd_h3.c
+++ b/drivers/video/omap/lcd_h3.c
@@ -124,16 +124,4 @@ static struct platform_driver h3_panel_driver = {
 	},
 };
 
-static int __init h3_panel_drv_init(void)
-{
-	return platform_driver_register(&h3_panel_driver);
-}
-
-static void __exit h3_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&h3_panel_driver);
-}
-
-module_init(h3_panel_drv_init);
-module_exit(h3_panel_drv_cleanup);
-
+module_platform_driver(h3_panel_driver);
diff --git a/drivers/video/omap/lcd_htcherald.c b/drivers/video/omap/lcd_htcherald.c
index b1a022f52a39..20f477851d54 100644
--- a/drivers/video/omap/lcd_htcherald.c
+++ b/drivers/video/omap/lcd_htcherald.c
@@ -115,16 +115,4 @@ static struct platform_driver htcherald_panel_driver = {
 	},
 };
 
-static int __init htcherald_panel_drv_init(void)
-{
-	return platform_driver_register(&htcherald_panel_driver);
-}
-
-static void __exit htcherald_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&htcherald_panel_driver);
-}
-
-module_init(htcherald_panel_drv_init);
-module_exit(htcherald_panel_drv_cleanup);
-
+module_platform_driver(htcherald_panel_driver);
diff --git a/drivers/video/omap/lcd_inn1510.c b/drivers/video/omap/lcd_inn1510.c
index d12994613bdf..b38b1dd15ce3 100644
--- a/drivers/video/omap/lcd_inn1510.c
+++ b/drivers/video/omap/lcd_inn1510.c
@@ -109,16 +109,4 @@ static struct platform_driver innovator1510_panel_driver = {
 	},
 };
 
-static int __init innovator1510_panel_drv_init(void)
-{
-	return platform_driver_register(&innovator1510_panel_driver);
-}
-
-static void __exit innovator1510_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&innovator1510_panel_driver);
-}
-
-module_init(innovator1510_panel_drv_init);
-module_exit(innovator1510_panel_drv_cleanup);
-
+module_platform_driver(innovator1510_panel_driver);
diff --git a/drivers/video/omap/lcd_inn1610.c b/drivers/video/omap/lcd_inn1610.c
index a95756bfda0e..7e8bd8e08a98 100644
--- a/drivers/video/omap/lcd_inn1610.c
+++ b/drivers/video/omap/lcd_inn1610.c
@@ -133,16 +133,4 @@ static struct platform_driver innovator1610_panel_driver = {
 	},
 };
 
-static int __init innovator1610_panel_drv_init(void)
-{
-	return platform_driver_register(&innovator1610_panel_driver);
-}
-
-static void __exit innovator1610_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&innovator1610_panel_driver);
-}
-
-module_init(innovator1610_panel_drv_init);
-module_exit(innovator1610_panel_drv_cleanup);
-
+module_platform_driver(innovator1610_panel_driver);
diff --git a/drivers/video/omap/lcd_osk.c b/drivers/video/omap/lcd_osk.c
index b985997c43a0..5914220dfa9c 100644
--- a/drivers/video/omap/lcd_osk.c
+++ b/drivers/video/omap/lcd_osk.c
@@ -127,16 +127,4 @@ static struct platform_driver osk_panel_driver = {
 	},
 };
 
-static int __init osk_panel_drv_init(void)
-{
-	return platform_driver_register(&osk_panel_driver);
-}
-
-static void __exit osk_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&osk_panel_driver);
-}
-
-module_init(osk_panel_drv_init);
-module_exit(osk_panel_drv_cleanup);
-
+module_platform_driver(osk_panel_driver);
diff --git a/drivers/video/omap/lcd_palmte.c b/drivers/video/omap/lcd_palmte.c
index d79f436b398c..88c31eb0cd6c 100644
--- a/drivers/video/omap/lcd_palmte.c
+++ b/drivers/video/omap/lcd_palmte.c
@@ -108,16 +108,4 @@ static struct platform_driver palmte_panel_driver = {
 	},
 };
 
-static int __init palmte_panel_drv_init(void)
-{
-	return platform_driver_register(&palmte_panel_driver);
-}
-
-static void __exit palmte_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&palmte_panel_driver);
-}
-
-module_init(palmte_panel_drv_init);
-module_exit(palmte_panel_drv_cleanup);
-
+module_platform_driver(palmte_panel_driver);
diff --git a/drivers/video/omap/lcd_palmtt.c b/drivers/video/omap/lcd_palmtt.c
index c2e96a720978..aaf3c8ba1243 100644
--- a/drivers/video/omap/lcd_palmtt.c
+++ b/drivers/video/omap/lcd_palmtt.c
@@ -113,15 +113,4 @@ static struct platform_driver palmtt_panel_driver = {
 	},
 };
 
-static int __init palmtt_panel_drv_init(void)
-{
-	return platform_driver_register(&palmtt_panel_driver);
-}
-
-static void __exit palmtt_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&palmtt_panel_driver);
-}
-
-module_init(palmtt_panel_drv_init);
-module_exit(palmtt_panel_drv_cleanup);
+module_platform_driver(palmtt_panel_driver);
diff --git a/drivers/video/omap/lcd_palmz71.c b/drivers/video/omap/lcd_palmz71.c
index 1ab484759d81..3b7d8aa1cf34 100644
--- a/drivers/video/omap/lcd_palmz71.c
+++ b/drivers/video/omap/lcd_palmz71.c
@@ -109,15 +109,4 @@ static struct platform_driver palmz71_panel_driver = {
 	},
 };
 
-static int __init palmz71_panel_drv_init(void)
-{
-	return platform_driver_register(&palmz71_panel_driver);
-}
-
-static void __exit palmz71_panel_drv_cleanup(void)
-{
-	platform_driver_unregister(&palmz71_panel_driver);
-}
-
-module_init(palmz71_panel_drv_init);
-module_exit(palmz71_panel_drv_cleanup);
+module_platform_driver(palmz71_panel_driver);

From 00f17e4560da32db454c46faf1e8df4fe35cc226 Mon Sep 17 00:00:00 2001
From: Rob Clark <rob@ti.com>
Date: Sun, 11 Dec 2011 14:02:27 -0600
Subject: [PATCH 093/108] OMAPDSS: fix potential NULL pointer ref in OCP_ERR
 handling path

The dispc's error handler tries to disable all outputs when OCP_ERR
happens. However, the code doesn't check if there actually is a display
on each particular output, nor if there's a driver for the display. This
may lead to NULL pointer reference.

Signed-off-by: Rob Clark <rob@ti.com>
[tomi.valkeinen@ti.com: added patch description]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 0f84034928ad..4d684282b201 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -3201,7 +3201,8 @@ static void dispc_error_worker(struct work_struct *work)
 		for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
 			struct omap_overlay_manager *mgr;
 			mgr = omap_dss_get_overlay_manager(i);
-			mgr->device->driver->disable(mgr->device);
+			if (mgr->device && mgr->device->driver)
+				mgr->device->driver->disable(mgr->device);
 		}
 	}
 

From 54540d41aaad0ed3245d3e99db014ab03a219c5a Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Tue, 13 Dec 2011 13:18:52 +0200
Subject: [PATCH 094/108] OMAPDSS: APPLY: move simple_check functions

The functions dss_ovl_simple_check() and dss_mgr_simple_check() are not
really part of the apply mechanism, and can be moved to overlay.c and
manager.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c   | 55 -------------------------------
 drivers/video/omap2/dss/dss.h     |  4 +++
 drivers/video/omap2/dss/manager.c | 19 +++++++++++
 drivers/video/omap2/dss/overlay.c | 36 ++++++++++++++++++++
 4 files changed, 59 insertions(+), 55 deletions(-)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 12f2cdb65704..0a6fb8de19c0 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -991,25 +991,6 @@ out:
 	mutex_unlock(&apply_lock);
 }
 
-static int dss_mgr_simple_check(struct omap_overlay_manager *mgr,
-		const struct omap_overlay_manager_info *info)
-{
-	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
-		/*
-		 * OMAP3 supports only graphics source transparency color key
-		 * and alpha blending simultaneously. See TRM 15.4.2.4.2.2
-		 * Alpha Mode.
-		 */
-		if (info->partial_alpha_enabled && info->trans_enabled
-			&& info->trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) {
-			DSSERR("check_manager: illegal transparency key\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
 int dss_mgr_set_info(struct omap_overlay_manager *mgr,
 		struct omap_overlay_manager_info *info)
 {
@@ -1109,42 +1090,6 @@ err:
 }
 
 
-static int dss_ovl_simple_check(struct omap_overlay *ovl,
-		const struct omap_overlay_info *info)
-{
-	if (info->paddr == 0) {
-		DSSERR("check_overlay: paddr cannot be 0\n");
-		return -EINVAL;
-	}
-
-	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
-		if (info->out_width != 0 && info->width != info->out_width) {
-			DSSERR("check_overlay: overlay %d doesn't support "
-					"scaling\n", ovl->id);
-			return -EINVAL;
-		}
-
-		if (info->out_height != 0 && info->height != info->out_height) {
-			DSSERR("check_overlay: overlay %d doesn't support "
-					"scaling\n", ovl->id);
-			return -EINVAL;
-		}
-	}
-
-	if ((ovl->supported_modes & info->color_mode) == 0) {
-		DSSERR("check_overlay: overlay %d doesn't support mode %d\n",
-				ovl->id, info->color_mode);
-		return -EINVAL;
-	}
-
-	if (info->zorder >= omap_dss_get_num_overlays()) {
-		DSSERR("check_overlay: zorder %d too high\n", info->zorder);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 int dss_ovl_set_info(struct omap_overlay *ovl,
 		struct omap_overlay_info *info)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 20a88392ed24..3cf99a95dae2 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -209,6 +209,8 @@ void default_get_overlay_fifo_thresholds(enum omap_plane plane,
 /* manager */
 int dss_init_overlay_managers(struct platform_device *pdev);
 void dss_uninit_overlay_managers(struct platform_device *pdev);
+int dss_mgr_simple_check(struct omap_overlay_manager *mgr,
+		const struct omap_overlay_manager_info *info);
 int dss_mgr_check(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev,
 		struct omap_overlay_manager_info *info,
@@ -219,6 +221,8 @@ void dss_init_overlays(struct platform_device *pdev);
 void dss_uninit_overlays(struct platform_device *pdev);
 void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
 void dss_recheck_connections(struct omap_dss_device *dssdev, bool force);
+int dss_ovl_simple_check(struct omap_overlay *ovl,
+		const struct omap_overlay_info *info);
 int dss_ovl_check(struct omap_overlay *ovl,
 		struct omap_overlay_info *info, struct omap_dss_device *dssdev);
 
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 542258dbdccc..d1858e71c64e 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -592,6 +592,25 @@ struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
 }
 EXPORT_SYMBOL(omap_dss_get_overlay_manager);
 
+int dss_mgr_simple_check(struct omap_overlay_manager *mgr,
+		const struct omap_overlay_manager_info *info)
+{
+	if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
+		/*
+		 * OMAP3 supports only graphics source transparency color key
+		 * and alpha blending simultaneously. See TRM 15.4.2.4.2.2
+		 * Alpha Mode.
+		 */
+		if (info->partial_alpha_enabled && info->trans_enabled
+			&& info->trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) {
+			DSSERR("check_manager: illegal transparency key\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
 static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
 		struct omap_overlay_info **overlay_infos)
 {
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index c91babfc44ca..6e821810deec 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -595,6 +595,42 @@ void dss_uninit_overlays(struct platform_device *pdev)
 	num_overlays = 0;
 }
 
+int dss_ovl_simple_check(struct omap_overlay *ovl,
+		const struct omap_overlay_info *info)
+{
+	if (info->paddr == 0) {
+		DSSERR("check_overlay: paddr cannot be 0\n");
+		return -EINVAL;
+	}
+
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+		if (info->out_width != 0 && info->width != info->out_width) {
+			DSSERR("check_overlay: overlay %d doesn't support "
+					"scaling\n", ovl->id);
+			return -EINVAL;
+		}
+
+		if (info->out_height != 0 && info->height != info->out_height) {
+			DSSERR("check_overlay: overlay %d doesn't support "
+					"scaling\n", ovl->id);
+			return -EINVAL;
+		}
+	}
+
+	if ((ovl->supported_modes & info->color_mode) == 0) {
+		DSSERR("check_overlay: overlay %d doesn't support mode %d\n",
+				ovl->id, info->color_mode);
+		return -EINVAL;
+	}
+
+	if (info->zorder >= omap_dss_get_num_overlays()) {
+		DSSERR("check_overlay: zorder %d too high\n", info->zorder);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 int dss_ovl_check(struct omap_overlay *ovl,
 		struct omap_overlay_info *info, struct omap_dss_device *dssdev)
 {

From 84309f16323b433045fba250f1e6bf8f26847ca5 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 12 Dec 2011 11:47:41 +0530
Subject: [PATCH 095/108] OMAPDSS: DSI: Fix HSDIV related PLL info in
 dsi_dump_clocks()

The clock names of DSI_PLL_HSDIV_DISPC and DSI_PLL_HSDIV_DSI was made
dynamic based on the current value of DISPC and DSI FCLK sources. This
doesn't need to be done since we are just interested in the clock names,
and not the current clock sources for DISPC and DSI FCLKs.

Use only the generic and omap specific names for the DSI PLL's HSDIV
clocks.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 4dc98b692267..511ae2a7add8 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1734,17 +1734,19 @@ static void dsi_dump_dsidev_clocks(struct platform_device *dsidev,
 	seq_printf(s,	"CLKIN4DDR\t%-16luregm %u\n",
 			cinfo->clkin4ddr, cinfo->regm);
 
-	seq_printf(s,	"%s (%s)\t%-16luregm_dispc %u\t(%s)\n",
-			dss_get_generic_clk_source_name(dispc_clk_src),
-			dss_feat_get_clk_source_name(dispc_clk_src),
+	seq_printf(s,	"DSI_PLL_HSDIV_DISPC (%s)\t%-16luregm_dispc %u\t(%s)\n",
+			dss_feat_get_clk_source_name(dsi_module == 0 ?
+				OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC :
+				OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC),
 			cinfo->dsi_pll_hsdiv_dispc_clk,
 			cinfo->regm_dispc,
 			dispc_clk_src == OMAP_DSS_CLK_SRC_FCK ?
 			"off" : "on");
 
-	seq_printf(s,	"%s (%s)\t%-16luregm_dsi %u\t(%s)\n",
-			dss_get_generic_clk_source_name(dsi_clk_src),
-			dss_feat_get_clk_source_name(dsi_clk_src),
+	seq_printf(s,	"DSI_PLL_HSDIV_DSI (%s)\t%-16luregm_dsi %u\t(%s)\n",
+			dss_feat_get_clk_source_name(dsi_module == 0 ?
+				OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI :
+				OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI),
 			cinfo->dsi_pll_hsdiv_dsi_clk,
 			cinfo->regm_dsi,
 			dsi_clk_src == OMAP_DSS_CLK_SRC_FCK ?

From d95c03f3fad265356920b7884fef6359d393ade8 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 12 Dec 2011 11:47:42 +0530
Subject: [PATCH 096/108] OMAPDSS: Panel NEC: Set omap_dss_device states
 correctly

The display state parameter of omap_dss_device struct is not being set correctly
in the panel driver NEC panel driver panel-nec-nl8048hl11-01b.c. Set the correct
states in the panel's enable/disable/suspend/resume functions.

CC: Erik Gilling <konkers@android.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 .../omap2/displays/panel-nec-nl8048hl11-01b.c | 61 ++++++++++++++++---
 1 file changed, 52 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
index 2ba9d0ca187c..94e0f207342e 100644
--- a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
+++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c
@@ -163,50 +163,93 @@ static void nec_8048_panel_remove(struct omap_dss_device *dssdev)
 	kfree(necd);
 }
 
-static int nec_8048_panel_enable(struct omap_dss_device *dssdev)
+static int nec_8048_panel_power_on(struct omap_dss_device *dssdev)
 {
-	int r = 0;
+	int r;
 	struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev);
 	struct backlight_device *bl = necd->bl;
 
+	if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
+		return 0;
+
+	r = omapdss_dpi_display_enable(dssdev);
+	if (r)
+		goto err0;
+
 	if (dssdev->platform_enable) {
 		r = dssdev->platform_enable(dssdev);
 		if (r)
-			return r;
+			goto err1;
 	}
 
 	r = nec_8048_bl_update_status(bl);
 	if (r < 0)
 		dev_err(&dssdev->dev, "failed to set lcd brightness\n");
 
-	r = omapdss_dpi_display_enable(dssdev);
-
+	return 0;
+err1:
+	omapdss_dpi_display_disable(dssdev);
+err0:
 	return r;
 }
 
-static void nec_8048_panel_disable(struct omap_dss_device *dssdev)
+static void nec_8048_panel_power_off(struct omap_dss_device *dssdev)
 {
 	struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev);
 	struct backlight_device *bl = necd->bl;
 
-	omapdss_dpi_display_disable(dssdev);
+	if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+		return;
 
 	bl->props.brightness = 0;
 	nec_8048_bl_update_status(bl);
 
 	if (dssdev->platform_disable)
 		dssdev->platform_disable(dssdev);
+
+	omapdss_dpi_display_disable(dssdev);
+}
+
+static int nec_8048_panel_enable(struct omap_dss_device *dssdev)
+{
+	int r;
+
+	r = nec_8048_panel_power_on(dssdev);
+	if (r)
+		return r;
+
+	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+	return 0;
+}
+
+static void nec_8048_panel_disable(struct omap_dss_device *dssdev)
+{
+	nec_8048_panel_power_off(dssdev);
+
+	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 }
 
 static int nec_8048_panel_suspend(struct omap_dss_device *dssdev)
 {
-	nec_8048_panel_disable(dssdev);
+	nec_8048_panel_power_off(dssdev);
+
+	dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+
 	return 0;
 }
 
 static int nec_8048_panel_resume(struct omap_dss_device *dssdev)
 {
-	return nec_8048_panel_enable(dssdev);
+	int r;
+
+	r = nec_8048_panel_power_on(dssdev);
+	if (r)
+		return r;
+
+	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+	return 0;
 }
 
 static int nec_8048_recommended_bpp(struct omap_dss_device *dssdev)

From 6ea9b31792745ee620509930dc9eead6e1c4be25 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 12 Dec 2011 11:47:43 +0530
Subject: [PATCH 097/108] OMAPDSS: Displays: Make PICODLP driver depend on DPI

Make PICODLP driver on OMAP2_DSS_DPI since it is the display interface it uses.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig
index 8d8e1fe1901c..74d29b552901 100644
--- a/drivers/video/omap2/displays/Kconfig
+++ b/drivers/video/omap2/displays/Kconfig
@@ -41,7 +41,7 @@ config PANEL_NEC_NL8048HL11_01B
 
 config PANEL_PICODLP
 	tristate "TI PICO DLP mini-projector"
-	depends on OMAP2_DSS && I2C
+	depends on OMAP2_DSS_DPI && I2C
 	help
 		A mini-projector used in TI's SDP4430 and EVM boards
 		For more info please visit http://www.dlp.com/projector/

From 1f3f53ae5179ba7f24b4a429bc41773f1f4857ca Mon Sep 17 00:00:00 2001
From: Rob Clark <rob@ti.com>
Date: Sat, 17 Dec 2011 13:28:52 -0600
Subject: [PATCH 098/108] OMAPDSS: APPLY: fix NULL pointer deref when mgr is
 not set

extra_info_update_ongoing() goes through all overlays, but doesn't check
if the overlay is connected to a manager. This leads to a crash whenever
an overlay has been detached.

Add a check to skip the non-connected overlays.

Reported-by: Rob Clark <rob@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/apply.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 0a6fb8de19c0..052dc874cd3d 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -327,6 +327,9 @@ static bool extra_info_update_ongoing(void)
 		ovl = omap_dss_get_overlay(i);
 		op = get_ovl_priv(ovl);
 
+		if (!ovl->manager)
+			continue;
+
 		mp = get_mgr_priv(ovl->manager);
 
 		if (!mp->enabled)

From debd90749b7440ad5fc02e4f0d1e8a696385f196 Mon Sep 17 00:00:00 2001
From: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Date: Mon, 19 Dec 2011 14:03:44 +0530
Subject: [PATCH 099/108] OMAPDSS: DISPC: Update Fir Coefficients

The FIR coefficients present in kernel are being updated to new coefficients
consisting of 24 coefficient tables, with 12 each for 3 tap and 5 tap scenario,
which are chosen on the basis of DISPC up/downsampling filters M value. M is
the inverse of low pass cut off frequency of the sampling filter. For vertical
scaling 3 tap or 5 tap tables are used based on the clock rate and width of
the line buffer whereas in OMAP2 3 tap is always used. For horizontal scaling
however 5 tap tables are always used.

New coefficients and the corresponding logic have been tested on OMAP2, OMAP3
and OMAP4. Horizontal and vertical scaling worked fine except for some 3 tap
vs 5 tap issue during vertical upscaling and clock failing issues which is
acknowledged in the next patch. Vertical upscaling was found to perform better
under 5 taps. The 24 coefficient tables have been moved to another file
dispc_coefs.c for proper maintainance.

This code is written based on code written by Lajos Molnar <lajos@ti.com> in
Android Kernel for scaling. Lajos Molnar <lajos@ti.com> had fine tuned the FIR
coefficient selection process and reduced outliness and blockiness around
images when upscaling more than 2 times.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile      |   4 +-
 drivers/video/omap2/dss/dispc.c       | 135 ++---------
 drivers/video/omap2/dss/dispc.h       |  11 +
 drivers/video/omap2/dss/dispc_coefs.c | 326 ++++++++++++++++++++++++++
 4 files changed, 357 insertions(+), 119 deletions(-)
 create mode 100644 drivers/video/omap2/dss/dispc_coefs.c

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 8594522184d9..5c450b0f94d0 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -1,6 +1,6 @@
 obj-$(CONFIG_OMAP2_DSS) += omapdss.o
-omapdss-y := core.o dss.o dss_features.o dispc.o display.o manager.o overlay.o \
-	apply.o
+omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \
+	manager.o overlay.o apply.o
 omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
 omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 4d684282b201..78e51d953629 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -64,22 +64,6 @@ struct omap_dispc_isr_data {
 	u32			mask;
 };
 
-struct dispc_h_coef {
-	s8 hc4;
-	s8 hc3;
-	u8 hc2;
-	s8 hc1;
-	s8 hc0;
-};
-
-struct dispc_v_coef {
-	s8 vc22;
-	s8 vc2;
-	u8 vc1;
-	s8 vc0;
-	s8 vc00;
-};
-
 enum omap_burst_size {
 	BURST_SIZE_X2 = 0,
 	BURST_SIZE_X4 = 1,
@@ -561,105 +545,27 @@ static void dispc_ovl_write_firv2_reg(enum omap_plane plane, int reg, u32 value)
 	dispc_write_reg(DISPC_OVL_FIR_COEF_V2(plane, reg), value);
 }
 
-static void dispc_ovl_set_scale_coef(enum omap_plane plane, int hscaleup,
-				  int vscaleup, int five_taps,
-				  enum omap_color_component color_comp)
+static void dispc_ovl_set_scale_coef(enum omap_plane plane, int fir_hinc,
+				int fir_vinc, int five_taps,
+				enum omap_color_component color_comp)
 {
-	/* Coefficients for horizontal up-sampling */
-	static const struct dispc_h_coef coef_hup[8] = {
-		{  0,   0, 128,   0,  0 },
-		{ -1,  13, 124,  -8,  0 },
-		{ -2,  30, 112, -11, -1 },
-		{ -5,  51,  95, -11, -2 },
-		{  0,  -9,  73,  73, -9 },
-		{ -2, -11,  95,  51, -5 },
-		{ -1, -11, 112,  30, -2 },
-		{  0,  -8, 124,  13, -1 },
-	};
-
-	/* Coefficients for vertical up-sampling */
-	static const struct dispc_v_coef coef_vup_3tap[8] = {
-		{ 0,  0, 128,  0, 0 },
-		{ 0,  3, 123,  2, 0 },
-		{ 0, 12, 111,  5, 0 },
-		{ 0, 32,  89,  7, 0 },
-		{ 0,  0,  64, 64, 0 },
-		{ 0,  7,  89, 32, 0 },
-		{ 0,  5, 111, 12, 0 },
-		{ 0,  2, 123,  3, 0 },
-	};
-
-	static const struct dispc_v_coef coef_vup_5tap[8] = {
-		{  0,   0, 128,   0,  0 },
-		{ -1,  13, 124,  -8,  0 },
-		{ -2,  30, 112, -11, -1 },
-		{ -5,  51,  95, -11, -2 },
-		{  0,  -9,  73,  73, -9 },
-		{ -2, -11,  95,  51, -5 },
-		{ -1, -11, 112,  30, -2 },
-		{  0,  -8, 124,  13, -1 },
-	};
-
-	/* Coefficients for horizontal down-sampling */
-	static const struct dispc_h_coef coef_hdown[8] = {
-		{   0, 36, 56, 36,  0 },
-		{   4, 40, 55, 31, -2 },
-		{   8, 44, 54, 27, -5 },
-		{  12, 48, 53, 22, -7 },
-		{  -9, 17, 52, 51, 17 },
-		{  -7, 22, 53, 48, 12 },
-		{  -5, 27, 54, 44,  8 },
-		{  -2, 31, 55, 40,  4 },
-	};
-
-	/* Coefficients for vertical down-sampling */
-	static const struct dispc_v_coef coef_vdown_3tap[8] = {
-		{ 0, 36, 56, 36, 0 },
-		{ 0, 40, 57, 31, 0 },
-		{ 0, 45, 56, 27, 0 },
-		{ 0, 50, 55, 23, 0 },
-		{ 0, 18, 55, 55, 0 },
-		{ 0, 23, 55, 50, 0 },
-		{ 0, 27, 56, 45, 0 },
-		{ 0, 31, 57, 40, 0 },
-	};
-
-	static const struct dispc_v_coef coef_vdown_5tap[8] = {
-		{   0, 36, 56, 36,  0 },
-		{   4, 40, 55, 31, -2 },
-		{   8, 44, 54, 27, -5 },
-		{  12, 48, 53, 22, -7 },
-		{  -9, 17, 52, 51, 17 },
-		{  -7, 22, 53, 48, 12 },
-		{  -5, 27, 54, 44,  8 },
-		{  -2, 31, 55, 40,  4 },
-	};
-
-	const struct dispc_h_coef *h_coef;
-	const struct dispc_v_coef *v_coef;
+	const struct dispc_coef *h_coef, *v_coef;
 	int i;
 
-	if (hscaleup)
-		h_coef = coef_hup;
-	else
-		h_coef = coef_hdown;
-
-	if (vscaleup)
-		v_coef = five_taps ? coef_vup_5tap : coef_vup_3tap;
-	else
-		v_coef = five_taps ? coef_vdown_5tap : coef_vdown_3tap;
+	h_coef = dispc_ovl_get_scale_coef(fir_hinc, true);
+	v_coef = dispc_ovl_get_scale_coef(fir_vinc, five_taps);
 
 	for (i = 0; i < 8; i++) {
 		u32 h, hv;
 
-		h = FLD_VAL(h_coef[i].hc0, 7, 0)
-			| FLD_VAL(h_coef[i].hc1, 15, 8)
-			| FLD_VAL(h_coef[i].hc2, 23, 16)
-			| FLD_VAL(h_coef[i].hc3, 31, 24);
-		hv = FLD_VAL(h_coef[i].hc4, 7, 0)
-			| FLD_VAL(v_coef[i].vc0, 15, 8)
-			| FLD_VAL(v_coef[i].vc1, 23, 16)
-			| FLD_VAL(v_coef[i].vc2, 31, 24);
+		h = FLD_VAL(h_coef[i].hc0_vc00, 7, 0)
+			| FLD_VAL(h_coef[i].hc1_vc0, 15, 8)
+			| FLD_VAL(h_coef[i].hc2_vc1, 23, 16)
+			| FLD_VAL(h_coef[i].hc3_vc2, 31, 24);
+		hv = FLD_VAL(h_coef[i].hc4_vc22, 7, 0)
+			| FLD_VAL(v_coef[i].hc1_vc0, 15, 8)
+			| FLD_VAL(v_coef[i].hc2_vc1, 23, 16)
+			| FLD_VAL(v_coef[i].hc3_vc2, 31, 24);
 
 		if (color_comp == DISPC_COLOR_COMPONENT_RGB_Y) {
 			dispc_ovl_write_firh_reg(plane, i, h);
@@ -674,8 +580,8 @@ static void dispc_ovl_set_scale_coef(enum omap_plane plane, int hscaleup,
 	if (five_taps) {
 		for (i = 0; i < 8; i++) {
 			u32 v;
-			v = FLD_VAL(v_coef[i].vc00, 7, 0)
-				| FLD_VAL(v_coef[i].vc22, 15, 8);
+			v = FLD_VAL(v_coef[i].hc0_vc00, 7, 0)
+				| FLD_VAL(v_coef[i].hc4_vc22, 15, 8);
 			if (color_comp == DISPC_COLOR_COMPONENT_RGB_Y)
 				dispc_ovl_write_firv_reg(plane, i, v);
 			else
@@ -1228,17 +1134,12 @@ static void dispc_ovl_set_scale_param(enum omap_plane plane,
 		enum omap_color_component color_comp)
 {
 	int fir_hinc, fir_vinc;
-	int hscaleup, vscaleup;
-
-	hscaleup = orig_width <= out_width;
-	vscaleup = orig_height <= out_height;
-
-	dispc_ovl_set_scale_coef(plane, hscaleup, vscaleup, five_taps,
-			color_comp);
 
 	fir_hinc = 1024 * orig_width / out_width;
 	fir_vinc = 1024 * orig_height / out_height;
 
+	dispc_ovl_set_scale_coef(plane, fir_hinc, fir_vinc, five_taps,
+				color_comp);
 	dispc_ovl_set_fir(plane, fir_hinc, fir_vinc, color_comp);
 }
 
diff --git a/drivers/video/omap2/dss/dispc.h b/drivers/video/omap2/dss/dispc.h
index c06efc38983e..5836bd1650f9 100644
--- a/drivers/video/omap2/dss/dispc.h
+++ b/drivers/video/omap2/dss/dispc.h
@@ -97,6 +97,17 @@
 #define DISPC_OVL_PRELOAD(n)		(DISPC_OVL_BASE(n) + \
 					DISPC_PRELOAD_OFFSET(n))
 
+/* DISPC up/downsampling FIR filter coefficient structure */
+struct dispc_coef {
+	s8 hc4_vc22;
+	s8 hc3_vc2;
+	u8 hc2_vc1;
+	s8 hc1_vc0;
+	s8 hc0_vc00;
+};
+
+const struct dispc_coef *dispc_ovl_get_scale_coef(int inc, int five_taps);
+
 /* DISPC manager/channel specific registers */
 static inline u16 DISPC_DEFAULT_COLOR(enum omap_channel channel)
 {
diff --git a/drivers/video/omap2/dss/dispc_coefs.c b/drivers/video/omap2/dss/dispc_coefs.c
new file mode 100644
index 000000000000..069bccbb3f12
--- /dev/null
+++ b/drivers/video/omap2/dss/dispc_coefs.c
@@ -0,0 +1,326 @@
+/*
+ * linux/drivers/video/omap2/dss/dispc_coefs.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Chandrabhanu Mahapatra <cmahapatra@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <video/omapdss.h>
+#include "dispc.h"
+
+#define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))
+
+static const struct dispc_coef coef3_M8[8] = {
+	{ 0,  0, 128,  0, 0 },
+	{ 0, -4, 123,  9, 0 },
+	{ 0, -4, 108, 87, 0 },
+	{ 0, -2,  87, 43, 0 },
+	{ 0, 64,  64,  0, 0 },
+	{ 0, 43,  87, -2, 0 },
+	{ 0, 24, 108, -4, 0 },
+	{ 0,  9, 123, -4, 0 },
+};
+
+static const struct dispc_coef coef3_M9[8] = {
+	{ 0,  6, 116,  6, 0 },
+	{ 0,  0, 112, 16, 0 },
+	{ 0, -2, 100, 30, 0 },
+	{ 0, -2,  83, 47, 0 },
+	{ 0, 64,  64,  0, 0 },
+	{ 0, 47,  83, -2, 0 },
+	{ 0, 30, 100, -2, 0 },
+	{ 0, 16, 112,  0, 0 },
+};
+
+static const struct dispc_coef coef3_M10[8] = {
+	{ 0, 10, 108, 10, 0 },
+	{ 0,  3, 104, 21, 0 },
+	{ 0,  0,  94, 34, 0 },
+	{ 0, -1,  80, 49, 0 },
+	{ 0, 64,  64,  0, 0 },
+	{ 0, 49,  80, -1, 0 },
+	{ 0, 34,  94,  0, 0 },
+	{ 0, 21, 104,  3, 0 },
+};
+
+static const struct dispc_coef coef3_M11[8] = {
+	{ 0, 14, 100, 14, 0 },
+	{ 0,  6,  98, 24, 0 },
+	{ 0,  2,  90, 36, 0 },
+	{ 0,  0,  78, 50, 0 },
+	{ 0, 64,  64,  0, 0 },
+	{ 0, 50,  78,  0, 0 },
+	{ 0, 36,  90,  2, 0 },
+	{ 0, 24,  98,  6, 0 },
+};
+
+static const struct dispc_coef coef3_M12[8] = {
+	{ 0, 16,  96, 16, 0 },
+	{ 0,  9,  93, 26, 0 },
+	{ 0,  4,  86, 38, 0 },
+	{ 0,  1,  76, 51, 0 },
+	{ 0, 64,  64,  0, 0 },
+	{ 0, 51,  76,  1, 0 },
+	{ 0, 38,  86,  4, 0 },
+	{ 0, 26,  93,  9, 0 },
+};
+
+static const struct dispc_coef coef3_M13[8] = {
+	{ 0, 18,  92, 18, 0 },
+	{ 0, 10,  90, 28, 0 },
+	{ 0,  5,  83, 40, 0 },
+	{ 0,  1,  75, 52, 0 },
+	{ 0, 64,  64,  0, 0 },
+	{ 0, 52,  75,  1, 0 },
+	{ 0, 40,  83,  5, 0 },
+	{ 0, 28,  90, 10, 0 },
+};
+
+static const struct dispc_coef coef3_M14[8] = {
+	{ 0, 20, 88, 20, 0 },
+	{ 0, 12, 86, 30, 0 },
+	{ 0,  6, 81, 41, 0 },
+	{ 0,  2, 74, 52, 0 },
+	{ 0, 64, 64,  0, 0 },
+	{ 0, 52, 74,  2, 0 },
+	{ 0, 41, 81,  6, 0 },
+	{ 0, 30, 86, 12, 0 },
+};
+
+static const struct dispc_coef coef3_M16[8] = {
+	{ 0, 22, 84, 22, 0 },
+	{ 0, 14, 82, 32, 0 },
+	{ 0,  8, 78, 42, 0 },
+	{ 0,  3, 72, 53, 0 },
+	{ 0, 64, 64,  0, 0 },
+	{ 0, 53, 72,  3, 0 },
+	{ 0, 42, 78,  8, 0 },
+	{ 0, 32, 82, 14, 0 },
+};
+
+static const struct dispc_coef coef3_M19[8] = {
+	{ 0, 24, 80, 24, 0 },
+	{ 0, 16, 79, 33, 0 },
+	{ 0,  9, 76, 43, 0 },
+	{ 0,  4, 70, 54, 0 },
+	{ 0, 64, 64,  0, 0 },
+	{ 0, 54, 70,  4, 0 },
+	{ 0, 43, 76,  9, 0 },
+	{ 0, 33, 79, 16, 0 },
+};
+
+static const struct dispc_coef coef3_M22[8] = {
+	{ 0, 25, 78, 25, 0 },
+	{ 0, 17, 77, 34, 0 },
+	{ 0, 10, 74, 44, 0 },
+	{ 0,  5, 69, 54, 0 },
+	{ 0, 64, 64,  0, 0 },
+	{ 0, 54, 69,  5, 0 },
+	{ 0, 44, 74, 10, 0 },
+	{ 0, 34, 77, 17, 0 },
+};
+
+static const struct dispc_coef coef3_M26[8] = {
+	{ 0, 26, 76, 26, 0 },
+	{ 0, 19, 74, 35, 0 },
+	{ 0, 11, 72, 45, 0 },
+	{ 0,  5, 69, 54, 0 },
+	{ 0, 64, 64,  0, 0 },
+	{ 0, 54, 69,  5, 0 },
+	{ 0, 45, 72, 11, 0 },
+	{ 0, 35, 74, 19, 0 },
+};
+
+static const struct dispc_coef coef3_M32[8] = {
+	{ 0, 27, 74, 27, 0 },
+	{ 0, 19, 73, 36, 0 },
+	{ 0, 12, 71, 45, 0 },
+	{ 0,  6, 68, 54, 0 },
+	{ 0, 64, 64,  0, 0 },
+	{ 0, 54, 68,  6, 0 },
+	{ 0, 45, 71, 12, 0 },
+	{ 0, 36, 73, 19, 0 },
+};
+
+static const struct dispc_coef coef5_M8[8] = {
+	{   0,   0, 128,   0,   0 },
+	{  -2,  14, 125, -10,   1 },
+	{  -6,  33, 114, -15,   2 },
+	{ -10,  55,  98, -16,   1 },
+	{   0, -14,  78,  78, -14 },
+	{   1, -16,  98,  55, -10 },
+	{   2, -15, 114,  33,  -6 },
+	{   1, -10, 125,  14,  -2 },
+};
+
+static const struct dispc_coef coef5_M9[8] = {
+	{  -3,  10, 114,  10,  -3 },
+	{  -6,  24, 110,   0,  -1 },
+	{  -8,  40, 103,  -7,   0 },
+	{ -11,  58,  91, -11,   1 },
+	{   0, -12,  76,  76, -12 },
+	{   1, -11,  91,  58, -11 },
+	{   0,  -7, 103,  40,  -8 },
+	{  -1,   0, 111,  24,  -6 },
+};
+
+static const struct dispc_coef coef5_M10[8] = {
+	{  -4,  18, 100,  18,  -4 },
+	{  -6,  30,  99,   8,  -3 },
+	{  -8,  44,  93,   0,  -1 },
+	{  -9,  58,  84,  -5,   0 },
+	{   0,  -8,  72,  72,  -8 },
+	{   0,  -5,  84,  58,  -9 },
+	{  -1,   0,  93,  44,  -8 },
+	{  -3,   8,  99,  30,  -6 },
+};
+
+static const struct dispc_coef coef5_M11[8] = {
+	{  -5,  23,  92,  23,  -5 },
+	{  -6,  34,  90,  13,  -3 },
+	{  -6,  45,  85,   6,  -2 },
+	{  -6,  57,  78,   0,  -1 },
+	{   0,  -4,  68,  68,  -4 },
+	{  -1,   0,  78,  57,  -6 },
+	{  -2,   6,  85,  45,  -6 },
+	{  -3,  13,  90,  34,  -6 },
+};
+
+static const struct dispc_coef coef5_M12[8] = {
+	{  -4,  26,  84,  26,  -4 },
+	{  -5,  36,  82,  18,  -3 },
+	{  -4,  46,  78,  10,  -2 },
+	{  -3,  55,  72,   5,  -1 },
+	{   0,   0,  64,  64,   0 },
+	{  -1,   5,  72,  55,  -3 },
+	{  -2,  10,  78,  46,  -4 },
+	{  -3,  18,  82,  36,  -5 },
+};
+
+static const struct dispc_coef coef5_M13[8] = {
+	{  -3,  28,  78,  28,  -3 },
+	{  -3,  37,  76,  21,  -3 },
+	{  -2,  45,  73,  14,  -2 },
+	{   0,  53,  68,   8,  -1 },
+	{   0,   3,  61,  61,   3 },
+	{  -1,   8,  68,  53,   0 },
+	{  -2,  14,  73,  45,  -2 },
+	{  -3,  21,  76,  37,  -3 },
+};
+
+static const struct dispc_coef coef5_M14[8] = {
+	{  -2,  30,  72,  30,  -2 },
+	{  -1,  37,  71,  23,  -2 },
+	{   0,  45,  69,  16,  -2 },
+	{   3,  52,  64,  10,  -1 },
+	{   0,   6,  58,  58,   6 },
+	{  -1,  10,  64,  52,   3 },
+	{  -2,  16,  69,  45,   0 },
+	{  -2,  23,  71,  37,  -1 },
+};
+
+static const struct dispc_coef coef5_M16[8] = {
+	{   0,  31,  66,  31,   0 },
+	{   1,  38,  65,  25,  -1 },
+	{   3,  44,  62,  20,  -1 },
+	{   6,  49,  59,  14,   0 },
+	{   0,  10,  54,  54,  10 },
+	{   0,  14,  59,  49,   6 },
+	{  -1,  20,  62,  44,   3 },
+	{  -1,  25,  65,  38,   1 },
+};
+
+static const struct dispc_coef coef5_M19[8] = {
+	{   3,  32,  58,  32,   3 },
+	{   4,  38,  58,  27,   1 },
+	{   7,  42,  55,  23,   1 },
+	{  10,  46,  54,  18,   0 },
+	{   0,  14,  50,  50,  14 },
+	{   0,  18,  54,  46,  10 },
+	{   1,  23,  55,  42,   7 },
+	{   1,  27,  58,  38,   4 },
+};
+
+static const struct dispc_coef coef5_M22[8] = {
+	{   4,  33,  54,  33,   4 },
+	{   6,  37,  54,  28,   3 },
+	{   9,  41,  53,  24,   1 },
+	{  12,  45,  51,  20,   0 },
+	{   0,  16,  48,  48,  16 },
+	{   0,  20,  51,  45,  12 },
+	{   1,  24,  53,  41,   9 },
+	{   3,  28,  54,  37,   6 },
+};
+
+static const struct dispc_coef coef5_M26[8] = {
+	{   6,  33,  50,  33,   6 },
+	{   8,  36,  51,  29,   4 },
+	{  11,  40,  50,  25,   2 },
+	{  14,  43,  48,  22,   1 },
+	{   0,  18,  46,  46,  18 },
+	{   1,  22,  48,  43,  14 },
+	{   2,  25,  50,  40,  11 },
+	{   4,  29,  51,  36,   8 },
+};
+
+static const struct dispc_coef coef5_M32[8] = {
+	{   7,  33,  48,  33,   7 },
+	{  10,  36,  48,  29,   5 },
+	{  13,  39,  47,  26,   3 },
+	{  16,  42,  46,  23,   1 },
+	{   0,  19,  45,  45,  19 },
+	{   1,  23,  46,  42,  16 },
+	{   3,  26,  47,  39,  13 },
+	{   5,  29,  48,  36,  10 },
+};
+
+const struct dispc_coef *dispc_ovl_get_scale_coef(int inc, int five_taps)
+{
+	int i;
+	static const struct {
+		int Mmin;
+		int Mmax;
+		const struct dispc_coef *coef_3;
+		const struct dispc_coef *coef_5;
+	} coefs[] = {
+		{ 27, 32, coef3_M32, coef5_M32 },
+		{ 23, 26, coef3_M26, coef5_M26 },
+		{ 20, 22, coef3_M22, coef5_M22 },
+		{ 17, 19, coef3_M19, coef5_M19 },
+		{ 15, 16, coef3_M16, coef5_M16 },
+		{ 14, 14, coef3_M14, coef5_M14 },
+		{ 13, 13, coef3_M13, coef5_M13 },
+		{ 12, 12, coef3_M12, coef5_M12 },
+		{ 11, 11, coef3_M11, coef5_M11 },
+		{ 10, 10, coef3_M10, coef5_M10 },
+		{  9,  9,  coef3_M9,  coef5_M9 },
+		{  4,  8,  coef3_M8,  coef5_M8 },
+		/*
+		 * When upscaling more than two times, blockiness and outlines
+		 * around the image are observed when M8 tables are used. M11,
+		 * M16 and M19 tables are used to prevent this.
+		 */
+		{  3,  3, coef3_M11, coef5_M11 },
+		{  2,  2, coef3_M16, coef5_M16 },
+		{  0,  1, coef3_M19, coef5_M19 },
+	};
+
+	inc /= 128;
+	for (i = 0; i < ARRAY_LEN(coefs); ++i)
+		if (inc >= coefs[i].Mmin && inc <= coefs[i].Mmax)
+			return five_taps ? coefs[i].coef_5 : coefs[i].coef_3;
+	return NULL;
+}

From 7282f1b7c9b5210114ce1ebb0ea5fe8a63fd5778 Mon Sep 17 00:00:00 2001
From: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Date: Mon, 19 Dec 2011 14:03:56 +0530
Subject: [PATCH 100/108] OMAPDSS: DISPC: Update Scaling Clock Logic

Clock requirements for scaling in OMAP2, OMAP3 and OMAP4 are different. In
OMAP2 and OMAP3 the required clock rate is a function of pixel clock, vertical
downscale ratio and horizontal downscale ratio whereas in OMAP4 it is a
function of pixel clock and horizontal downscale ratio only. Selection of 3-tap
vs 5-tap coefficients depends on clock rate line buffer width in OMAP3 whereas
in OMAP4 it is independent of clock rate and line buffer width. In OMAP2 3-tap
for vertical and 5-tap for horizontal scaling is used. In OMAP4 5-tap is used
both for horizontal and vertical scaling for better performance. Also, the
number and width of line buffers differs in OMAP3 and OMAP4.

So, clock functions have been fined tuned for OMAP3 and support has been added
added for OMAP4. This code has been tested on OMAP2, OMAP3 and OMAP4, and
scaling issues due to clock errors have been resolved.

Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c        | 66 ++++++++++++++++++--------
 drivers/video/omap2/dss/dss_features.c |  7 +++
 drivers/video/omap2/dss/dss_features.h |  1 +
 3 files changed, 54 insertions(+), 20 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 78e51d953629..a5ec7f37c185 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1614,6 +1614,9 @@ static unsigned long calc_fclk_five_taps(enum omap_channel channel, u16 width,
 	u32 fclk = 0;
 	u64 tmp, pclk = dispc_mgr_pclk_rate(channel);
 
+	if (height <= out_height && width <= out_width)
+		return (unsigned long) pclk;
+
 	if (height > out_height) {
 		struct omap_dss_device *dssdev = dispc_mgr_get_device(channel);
 		unsigned int ppl = dssdev->panel.timings.x_res;
@@ -1668,7 +1671,16 @@ static unsigned long calc_fclk(enum omap_channel channel, u16 width,
 	else
 		vf = 1;
 
-	return dispc_mgr_pclk_rate(channel) * vf * hf;
+	if (cpu_is_omap24xx()) {
+		if (vf > 1 && hf > 1)
+			return dispc_mgr_pclk_rate(channel) * 4;
+		else
+			return dispc_mgr_pclk_rate(channel) * 2;
+	} else if (cpu_is_omap34xx()) {
+		return dispc_mgr_pclk_rate(channel) * vf * hf;
+	} else {
+		return dispc_mgr_pclk_rate(channel) * hf;
+	}
 }
 
 static int dispc_ovl_calc_scaling(enum omap_plane plane,
@@ -1678,6 +1690,8 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 {
 	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
 	const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
+	const int maxsinglelinewidth =
+				dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
 	unsigned long fclk = 0;
 
 	if (width == out_width && height == out_height)
@@ -1694,28 +1708,40 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
 			out_height > height * 8)
 		return -EINVAL;
 
-	/* Must use 5-tap filter? */
-	*five_taps = height > out_height * 2;
-
-	if (!*five_taps) {
+	if (cpu_is_omap24xx()) {
+		if (width > maxsinglelinewidth)
+			DSSERR("Cannot scale max input width exceeded");
+		*five_taps = false;
+		fclk = calc_fclk(channel, width, height, out_width,
+								out_height);
+	} else if (cpu_is_omap34xx()) {
+		if (width > (maxsinglelinewidth * 2)) {
+			DSSERR("Cannot setup scaling");
+			DSSERR("width exceeds maximum width possible");
+			return -EINVAL;
+		}
+		fclk = calc_fclk_five_taps(channel, width, height, out_width,
+						out_height, color_mode);
+		if (width > maxsinglelinewidth) {
+			if (height > out_height && height < out_height * 2)
+				*five_taps = false;
+			else {
+				DSSERR("cannot setup scaling with five taps");
+				return -EINVAL;
+			}
+		}
+		if (!*five_taps)
+			fclk = calc_fclk(channel, width, height, out_width,
+					out_height);
+	} else {
+		if (width > maxsinglelinewidth) {
+			DSSERR("Cannot scale width exceeds max line width");
+			return -EINVAL;
+		}
 		fclk = calc_fclk(channel, width, height, out_width,
 				out_height);
-
-		/* Try 5-tap filter if 3-tap fclk is too high */
-		if (cpu_is_omap34xx() && height > out_height &&
-				fclk > dispc_fclk_rate())
-			*five_taps = true;
 	}
 
-	if (width > (2048 >> *five_taps)) {
-		DSSERR("failed to set up scaling, fclk too low\n");
-		return -EINVAL;
-	}
-
-	if (*five_taps)
-		fclk = calc_fclk_five_taps(channel, width, height,
-				out_width, out_height, color_mode);
-
 	DSSDBG("required fclk rate = %lu Hz\n", fclk);
 	DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate());
 
@@ -1734,7 +1760,7 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
 		bool ilace, bool replication)
 {
 	struct omap_overlay *ovl = omap_dss_get_overlay(plane);
-	bool five_taps = false;
+	bool five_taps = true;
 	bool fieldmode = 0;
 	int r, cconv = 0;
 	unsigned offset0, offset1;
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index b402699168a5..5e4b829605da 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -304,6 +304,11 @@ static const struct dss_param_range omap2_dss_param_range[] = {
 	[FEAT_PARAM_DSIPLL_FINT]		= { 0, 0 },
 	[FEAT_PARAM_DSIPLL_LPDIV]		= { 0, 0 },
 	[FEAT_PARAM_DOWNSCALE]			= { 1, 2 },
+	/*
+	 * Assuming the line width buffer to be 768 pixels as OMAP2 DISPC
+	 * scaler cannot scale a image with width more than 768.
+	 */
+	[FEAT_PARAM_LINEWIDTH]			= { 1, 768 },
 };
 
 static const struct dss_param_range omap3_dss_param_range[] = {
@@ -316,6 +321,7 @@ static const struct dss_param_range omap3_dss_param_range[] = {
 	[FEAT_PARAM_DSIPLL_FINT]		= { 750000, 2100000 },
 	[FEAT_PARAM_DSIPLL_LPDIV]		= { 1, (1 << 13) - 1},
 	[FEAT_PARAM_DOWNSCALE]			= { 1, 4 },
+	[FEAT_PARAM_LINEWIDTH]			= { 1, 1024 },
 };
 
 static const struct dss_param_range omap4_dss_param_range[] = {
@@ -328,6 +334,7 @@ static const struct dss_param_range omap4_dss_param_range[] = {
 	[FEAT_PARAM_DSIPLL_FINT]		= { 500000, 2500000 },
 	[FEAT_PARAM_DSIPLL_LPDIV]		= { 0, (1 << 13) - 1 },
 	[FEAT_PARAM_DOWNSCALE]			= { 1, 4 },
+	[FEAT_PARAM_LINEWIDTH]			= { 1, 2048 },
 };
 
 /* OMAP2 DSS Features */
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index 6a6c05dd45ce..cd833bbaac3d 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -86,6 +86,7 @@ enum dss_range_param {
 	FEAT_PARAM_DSIPLL_FINT,
 	FEAT_PARAM_DSIPLL_LPDIV,
 	FEAT_PARAM_DOWNSCALE,
+	FEAT_PARAM_LINEWIDTH,
 };
 
 /* DSS Feature Functions */

From b17ce117322a446f13716132e47b672d7bf25a30 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 22 Nov 2011 20:09:41 -0600
Subject: [PATCH 101/108] ASoC: OMAP: HDMI: Introduce driver data for audio
 codec

Under the new DSS architecture for HDMI, there is a clear separation
between general DSS code and HDMI IP-specific data. Functions
that require access to the HDMI driver IP-specific data receive an
hdmi_ip_data structure. The ASoC codec require access to such
IP-specific data. Then, instead of accessing it directly, it will be
passed as codec driver data. This also helps to have a clear separation
between DSS and ASoC portions of the code.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index b064762b6994..3c96d771e2c9 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -705,7 +705,16 @@ static int hdmi_audio_startup(struct snd_pcm_substream *substream,
 	return 0;
 }
 
+static int hdmi_audio_codec_probe(struct snd_soc_codec *codec)
+{
+	struct hdmi_ip_data *priv = &hdmi.ip_data;
+
+	snd_soc_codec_set_drvdata(codec, priv);
+	return 0;
+}
+
 static struct snd_soc_codec_driver hdmi_audio_codec_drv = {
+	.probe = hdmi_audio_codec_probe,
 };
 
 static struct snd_soc_dai_ops hdmi_audio_codec_ops = {

From 284cb318c8f84744f073d4f4d3820946afaf5442 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Tue, 22 Nov 2011 20:50:50 -0600
Subject: [PATCH 102/108] ASoC: OMAP: HDMI: Correct signature of ASoC functions

These functions require access to IP-secific data. However, it is not possible
to pass such data as a function argument as such functions have a specific
signature specified by ASoC. Instead, they will have access to the IP-specific
data by calling snd_soc_codec_get_drvdata. The codec driver data is set
at probe time.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c            | 6 ++++--
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 7 +++++--
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h | 3 +--
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 3c96d771e2c9..b727992efd6d 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -561,11 +561,13 @@ void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
 #if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
 	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
 
-static int hdmi_audio_hw_params(struct hdmi_ip_data *ip_data,
-					struct snd_pcm_substream *substream,
+static int hdmi_audio_hw_params(struct snd_pcm_substream *substream,
 				    struct snd_pcm_hw_params *params,
 				    struct snd_soc_dai *dai)
 {
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct hdmi_ip_data *ip_data = snd_soc_codec_get_drvdata(codec);
 	struct hdmi_audio_format audio_format;
 	struct hdmi_audio_dma audio_dma;
 	struct hdmi_core_audio_config core_cfg;
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index e1a6ce518af6..3f74f55269bd 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -1204,11 +1204,14 @@ int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data,
 	return 0;
 }
 
-int hdmi_audio_trigger(struct hdmi_ip_data *ip_data,
-				struct snd_pcm_substream *substream, int cmd,
+int hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
 				struct snd_soc_dai *dai)
 {
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct hdmi_ip_data *ip_data = snd_soc_codec_get_drvdata(codec);
 	int err = 0;
+
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index 204095632d27..eb5e8f7120f8 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -576,8 +576,7 @@ struct hdmi_core_audio_config {
 
 #if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
 	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
-int hdmi_audio_trigger(struct hdmi_ip_data *ip_data,
-				struct snd_pcm_substream *substream, int cmd,
+int hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
 				struct snd_soc_dai *dai);
 int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data,
 				u32 sample_freq, u32 *n, u32 *cts);

From 80a485962807aae44a93197ee88854910bb935ad Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Sun, 27 Nov 2011 16:09:58 -0600
Subject: [PATCH 103/108] OMAPDSS: HDMI: Create function to enable HDMI audio

In order to separate clearly IP-specific code from general DSS code,
a function for OMAP4 audio enable is created. This function is
included in the HDMI IP ops to align with the current implementation
of the DSS HDMI driver. This function is to be used by the ASoC
HDMI audio codec.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss_features.c    |  4 +++
 drivers/video/omap2/dss/ti_hdmi.h         | 10 +++++++-
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 30 ++++++++++++++---------
 3 files changed, 31 insertions(+), 13 deletions(-)

diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 5e4b829605da..afcb59301c37 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -472,6 +472,10 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
 	.dump_core		=	ti_hdmi_4xxx_core_dump,
 	.dump_pll		=	ti_hdmi_4xxx_pll_dump,
 	.dump_phy		=	ti_hdmi_4xxx_phy_dump,
+#if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
+	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
+	.audio_enable		=       ti_hdmi_4xxx_wp_audio_enable,
+#endif
 
 };
 
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index 2c3443dabb14..7503f7f619a7 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -110,6 +110,11 @@ struct ti_hdmi_ip_ops {
 
 	void (*dump_phy)(struct hdmi_ip_data *ip_data, struct seq_file *s);
 
+#if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
+	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
+	void (*audio_enable)(struct hdmi_ip_data *ip_data, bool start);
+#endif
+
 };
 
 struct hdmi_ip_data {
@@ -134,5 +139,8 @@ void ti_hdmi_4xxx_wp_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
-
+#if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
+	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
+void ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data, bool enable);
+#endif
 #endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 3f74f55269bd..220e0ce5e5ef 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -1204,35 +1204,41 @@ int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data,
 	return 0;
 }
 
+void ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data, bool enable)
+{
+	REG_FLD_MOD(hdmi_av_base(ip_data),
+				HDMI_CORE_AV_AUD_MODE, enable, 0, 0);
+	REG_FLD_MOD(hdmi_wp_base(ip_data),
+				HDMI_WP_AUDIO_CTRL, enable, 31, 31);
+	REG_FLD_MOD(hdmi_wp_base(ip_data),
+				HDMI_WP_AUDIO_CTRL, enable, 30, 30);
+}
+
 int hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
 				struct snd_soc_dai *dai)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
+	struct platform_device *pdev = to_platform_device(codec->dev);
 	struct hdmi_ip_data *ip_data = snd_soc_codec_get_drvdata(codec);
 	int err = 0;
 
+	if (!(ip_data->ops) && !(ip_data->ops->audio_enable)) {
+		dev_err(&pdev->dev, "Cannot enable/disable audio\n");
+		return -ENODEV;
+	}
+
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		REG_FLD_MOD(hdmi_av_base(ip_data),
-					HDMI_CORE_AV_AUD_MODE, 1, 0, 0);
-		REG_FLD_MOD(hdmi_wp_base(ip_data),
-					HDMI_WP_AUDIO_CTRL, 1, 31, 31);
-		REG_FLD_MOD(hdmi_wp_base(ip_data),
-					HDMI_WP_AUDIO_CTRL, 1, 30, 30);
+		ip_data->ops->audio_enable(ip_data, true);
 		break;
 
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		REG_FLD_MOD(hdmi_av_base(ip_data),
-					HDMI_CORE_AV_AUD_MODE, 0, 0, 0);
-		REG_FLD_MOD(hdmi_wp_base(ip_data),
-					HDMI_WP_AUDIO_CTRL, 0, 30, 30);
-		REG_FLD_MOD(hdmi_wp_base(ip_data),
-					HDMI_WP_AUDIO_CTRL, 0, 31, 31);
+		ip_data->ops->audio_enable(ip_data, false);
 		break;
 	default:
 		err = -EINVAL;

From edefcdad6a57657a236638c937ccd5a3af272d02 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Sun, 27 Nov 2011 16:18:01 -0600
Subject: [PATCH 104/108] ASoC: OMAP: HDMI: Move HDMI codec trigger function to
 generic HDMI driver

The function hdmi_audio_trigger is a callback used by ASoC to stop/start
HDMI audio. Also, it does not perform IP-specific configuration directly.
Hence, it should be placed in the general portion of the HDMI driver,
along with the other ASoC callbacks.

Also, make this function static.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c            | 31 ++++++++++++++++++++++
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 32 -----------------------
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h |  2 --
 3 files changed, 31 insertions(+), 34 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index b727992efd6d..b4c270edb915 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -561,6 +561,37 @@ void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
 #if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
 	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
 
+static int hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
+				struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct platform_device *pdev = to_platform_device(codec->dev);
+	struct hdmi_ip_data *ip_data = snd_soc_codec_get_drvdata(codec);
+	int err = 0;
+
+	if (!(ip_data->ops) && !(ip_data->ops->audio_enable)) {
+		dev_err(&pdev->dev, "Cannot enable/disable audio\n");
+		return -ENODEV;
+	}
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		ip_data->ops->audio_enable(ip_data, true);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		ip_data->ops->audio_enable(ip_data, false);
+		break;
+	default:
+		err = -EINVAL;
+	}
+	return err;
+}
+
 static int hdmi_audio_hw_params(struct snd_pcm_substream *substream,
 				    struct snd_pcm_hw_params *params,
 				    struct snd_soc_dai *dai)
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 220e0ce5e5ef..9af81f18f163 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -1213,36 +1213,4 @@ void ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data, bool enable)
 	REG_FLD_MOD(hdmi_wp_base(ip_data),
 				HDMI_WP_AUDIO_CTRL, enable, 30, 30);
 }
-
-int hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
-				struct snd_soc_dai *dai)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_codec *codec = rtd->codec;
-	struct platform_device *pdev = to_platform_device(codec->dev);
-	struct hdmi_ip_data *ip_data = snd_soc_codec_get_drvdata(codec);
-	int err = 0;
-
-	if (!(ip_data->ops) && !(ip_data->ops->audio_enable)) {
-		dev_err(&pdev->dev, "Cannot enable/disable audio\n");
-		return -ENODEV;
-	}
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_RESUME:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		ip_data->ops->audio_enable(ip_data, true);
-		break;
-
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		ip_data->ops->audio_enable(ip_data, false);
-		break;
-	default:
-		err = -EINVAL;
-	}
-	return err;
-}
 #endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index eb5e8f7120f8..a442998980f1 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -576,8 +576,6 @@ struct hdmi_core_audio_config {
 
 #if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
 	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
-int hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
-				struct snd_soc_dai *dai);
 int hdmi_config_audio_acr(struct hdmi_ip_data *ip_data,
 				u32 sample_freq, u32 *n, u32 *cts);
 void hdmi_core_audio_infoframe_config(struct hdmi_ip_data *ip_data,

From 62941ecd53a229bcd776b75fd37976a40e587f65 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Tue, 20 Dec 2011 10:54:32 +0100
Subject: [PATCH 105/108] OMAP: DSS2: Support for UMSH-8173MD TFT panel

This patch adds support for Microtip Technologies' UMSH-8173MD 800x480
RGB TFT panel. Tested with an OMAP3 board.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
[tomi.valkeinen@ti.com: changed the panel name string]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 .../video/omap2/displays/panel-generic-dpi.c  | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c b/drivers/video/omap2/displays/panel-generic-dpi.c
index 593f83120220..5dbe7121c679 100644
--- a/drivers/video/omap2/displays/panel-generic-dpi.c
+++ b/drivers/video/omap2/displays/panel-generic-dpi.c
@@ -317,6 +317,31 @@ static struct panel_config generic_dpi_panels[] = {
 					  OMAP_DSS_LCD_IHS,
 		.name			= "focaltech_etm070003dh6",
 	},
+
+	/* Microtips Technologies - UMSH-8173MD */
+	{
+		{
+			.x_res		= 800,
+			.y_res		= 480,
+
+			.pixel_clock	= 34560,
+
+			.hsw		= 13,
+			.hfp		= 101,
+			.hbp		= 101,
+
+			.vsw		= 23,
+			.vfp		= 1,
+			.vbp		= 1,
+		},
+		.acbi			= 0x0,
+		.acb			= 0x0,
+		.config			= OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+					  OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC,
+		.power_on_delay		= 0,
+		.power_off_delay	= 0,
+		.name			= "microtips_umsh_8173md",
+	},
 };
 
 struct panel_drv_data {

From 6acea9c2dab2b440a06510b1e33e7db07289a22e Mon Sep 17 00:00:00 2001
From: Ilya Yanok <yanok@emcraft.com>
Date: Mon, 26 Dec 2011 23:56:41 +0100
Subject: [PATCH 106/108] OMAPDSS: add OrtusTech COM43H4M10XTC display support

dd data for the OrtusTech COM43H4M10XTC display to the
generic_dpi_panel driver.

CC: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 .../video/omap2/displays/panel-generic-dpi.c  | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c b/drivers/video/omap2/displays/panel-generic-dpi.c
index 5dbe7121c679..28b9a6d61b0f 100644
--- a/drivers/video/omap2/displays/panel-generic-dpi.c
+++ b/drivers/video/omap2/displays/panel-generic-dpi.c
@@ -342,6 +342,27 @@ static struct panel_config generic_dpi_panels[] = {
 		.power_off_delay	= 0,
 		.name			= "microtips_umsh_8173md",
 	},
+
+	/* OrtusTech COM43H4M10XTC */
+	{
+		{
+			.x_res		= 480,
+			.y_res		= 272,
+
+			.pixel_clock	= 8000,
+
+			.hsw		= 41,
+			.hfp		= 8,
+			.hbp		= 4,
+
+			.vsw		= 10,
+			.vfp		= 4,
+			.vbp		= 2,
+		},
+		.config			= OMAP_DSS_LCD_TFT,
+
+		.name			= "ortustech_com43h4m10xtc",
+	},
 };
 
 struct panel_drv_data {

From ee9dfd82ff1317ac5c0147fe21508ad6d7df4cff Mon Sep 17 00:00:00 2001
From: Mythri P K <mythripk@ti.com>
Date: Mon, 2 Jan 2012 14:02:37 +0530
Subject: [PATCH 107/108] OMAPDSS: HDMI: Move duplicate code from boardfile

Move duplicate HDMI mux_init code from omap4 and panda board file
to display file.

Signed-off-by: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-omap2/board-4430sdp.c    | 16 +---------------
 arch/arm/mach-omap2/board-omap4panda.c | 17 +----------------
 arch/arm/mach-omap2/display.c          | 23 +++++++++++++++++++++++
 include/video/omapdss.h                |  2 ++
 4 files changed, 27 insertions(+), 31 deletions(-)

diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 515646886b59..312b158240ed 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -595,20 +595,6 @@ static void __init omap_sfh7741prox_init(void)
 			__func__, OMAP4_SFH7741_ENABLE_GPIO, error);
 }
 
-static void sdp4430_hdmi_mux_init(void)
-{
-	/* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
-	omap_mux_init_signal("hdmi_hpd",
-			OMAP_PIN_INPUT_PULLUP);
-	omap_mux_init_signal("hdmi_cec",
-			OMAP_PIN_INPUT_PULLUP);
-	/* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */
-	omap_mux_init_signal("hdmi_ddc_scl",
-			OMAP_PIN_INPUT_PULLUP);
-	omap_mux_init_signal("hdmi_ddc_sda",
-			OMAP_PIN_INPUT_PULLUP);
-}
-
 static struct gpio sdp4430_hdmi_gpios[] = {
 	{ HDMI_GPIO_HPD,	GPIOF_OUT_INIT_HIGH,	"hdmi_gpio_hpd"   },
 	{ HDMI_GPIO_LS_OE,	GPIOF_OUT_INIT_HIGH,	"hdmi_gpio_ls_oe" },
@@ -826,9 +812,9 @@ static void omap_4430sdp_display_init(void)
 		pr_err("%s: Could not get display_sel GPIO\n", __func__);
 
 	sdp4430_lcd_init();
-	sdp4430_hdmi_mux_init();
 	sdp4430_picodlp_init();
 	omap_display_init(&sdp4430_dss_data);
+	omap_hdmi_init();
 }
 
 #ifdef CONFIG_OMAP_MUX
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index a8c2c4263e38..9cc41ce29dab 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -478,21 +478,6 @@ int __init omap4_panda_dvi_init(void)
 	return r;
 }
 
-
-static void omap4_panda_hdmi_mux_init(void)
-{
-	/* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
-	omap_mux_init_signal("hdmi_hpd",
-			OMAP_PIN_INPUT_PULLUP);
-	omap_mux_init_signal("hdmi_cec",
-			OMAP_PIN_INPUT_PULLUP);
-	/* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */
-	omap_mux_init_signal("hdmi_ddc_scl",
-			OMAP_PIN_INPUT_PULLUP);
-	omap_mux_init_signal("hdmi_ddc_sda",
-			OMAP_PIN_INPUT_PULLUP);
-}
-
 static struct gpio panda_hdmi_gpios[] = {
 	{ HDMI_GPIO_HPD,	GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd"   },
 	{ HDMI_GPIO_LS_OE,	GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
@@ -544,8 +529,8 @@ void omap4_panda_display_init(void)
 	if (r)
 		pr_err("error initializing panda DVI\n");
 
-	omap4_panda_hdmi_mux_init();
 	omap_display_init(&omap4_panda_dss_data);
+	omap_hdmi_init();
 }
 
 static void __init omap4_panda_init(void)
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index dce9905d64bb..8436088ffe13 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -29,6 +29,7 @@
 #include <plat/omap-pm.h>
 #include <plat/common.h>
 
+#include "mux.h"
 #include "control.h"
 #include "display.h"
 
@@ -96,6 +97,20 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = {
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
+static void omap4_hdmi_mux_pads()
+{
+	/* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
+	omap_mux_init_signal("hdmi_hpd",
+			OMAP_PIN_INPUT_PULLUP);
+	omap_mux_init_signal("hdmi_cec",
+			OMAP_PIN_INPUT_PULLUP);
+	/* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */
+	omap_mux_init_signal("hdmi_ddc_scl",
+			OMAP_PIN_INPUT_PULLUP);
+	omap_mux_init_signal("hdmi_ddc_sda",
+			OMAP_PIN_INPUT_PULLUP);
+}
+
 static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
 {
 	u32 enable_mask, enable_shift;
@@ -129,6 +144,14 @@ static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
 	return 0;
 }
 
+int omap_hdmi_init(void)
+{
+	if (cpu_is_omap44xx())
+		omap4_hdmi_mux_pads();
+
+	return 0;
+}
+
 static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
 {
 	if (cpu_is_omap44xx())
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index 39862b8c9805..c1e3cb0d2c5e 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -309,6 +309,8 @@ struct omap_dss_board_info {
 
 /* Init with the board info */
 extern int omap_display_init(struct omap_dss_board_info *board_data);
+/* HDMI mux init*/
+extern int omap_hdmi_init(void);
 
 struct omap_display_platform_data {
 	struct omap_dss_board_info *board_data;

From 9a9016832d2601a290db4dce6dd55552bdae5b1a Mon Sep 17 00:00:00 2001
From: Mythri P K <mythripk@ti.com>
Date: Mon, 2 Jan 2012 14:02:38 +0530
Subject: [PATCH 108/108] OMAPDSS: HDMI: Disable DDC internal pull up

Disables the internal pull resistor for SDA and SCL which are enabled by
default, as there are external pull up's in 4460 and 4430 ES2.3
SDP, Blaze and Panda Boards, It is done to avoid the EDID read failure.

Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@linaro.org>
Signed-off-by: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-omap2/board-4430sdp.c    |  9 ++++++++-
 arch/arm/mach-omap2/board-omap4panda.c | 10 +++++++++-
 arch/arm/mach-omap2/display.c          | 22 +++++++++++++++++++---
 include/video/omapdss.h                |  6 +++++-
 4 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 312b158240ed..e1fe304ce361 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -814,7 +814,14 @@ static void omap_4430sdp_display_init(void)
 	sdp4430_lcd_init();
 	sdp4430_picodlp_init();
 	omap_display_init(&sdp4430_dss_data);
-	omap_hdmi_init();
+	/*
+	 * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
+	 * later have external pull up on the HDMI I2C lines
+	 */
+	if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
+		omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
+	else
+		omap_hdmi_init(0);
 }
 
 #ifdef CONFIG_OMAP_MUX
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 9cc41ce29dab..3e1c507fb01f 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -530,7 +530,15 @@ void omap4_panda_display_init(void)
 		pr_err("error initializing panda DVI\n");
 
 	omap_display_init(&omap4_panda_dss_data);
-	omap_hdmi_init();
+
+	/*
+	 * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
+	 * later have external pull up on the HDMI I2C lines
+	 */
+	if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
+		omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
+	else
+		omap_hdmi_init(0);
 }
 
 static void __init omap4_panda_init(void)
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 8436088ffe13..ffd9bd983023 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -97,8 +97,11 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = {
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
-static void omap4_hdmi_mux_pads()
+static void omap4_hdmi_mux_pads(enum omap_hdmi_flags flags)
 {
+	u32 reg;
+	u16 control_i2c_1;
+
 	/* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
 	omap_mux_init_signal("hdmi_hpd",
 			OMAP_PIN_INPUT_PULLUP);
@@ -109,6 +112,19 @@ static void omap4_hdmi_mux_pads()
 			OMAP_PIN_INPUT_PULLUP);
 	omap_mux_init_signal("hdmi_ddc_sda",
 			OMAP_PIN_INPUT_PULLUP);
+
+	/*
+	 * CONTROL_I2C_1: HDMI_DDC_SDA_PULLUPRESX (bit 28) and
+	 * HDMI_DDC_SCL_PULLUPRESX (bit 24) are set to disable
+	 * internal pull up resistor.
+	 */
+	if (flags & OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP) {
+		control_i2c_1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_I2C_1;
+		reg = omap4_ctrl_pad_readl(control_i2c_1);
+		reg |= (OMAP4_HDMI_DDC_SDA_PULLUPRESX_MASK |
+			OMAP4_HDMI_DDC_SCL_PULLUPRESX_MASK);
+			omap4_ctrl_pad_writel(reg, control_i2c_1);
+	}
 }
 
 static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
@@ -144,10 +160,10 @@ static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
 	return 0;
 }
 
-int omap_hdmi_init(void)
+int omap_hdmi_init(enum omap_hdmi_flags flags)
 {
 	if (cpu_is_omap44xx())
-		omap4_hdmi_mux_pads();
+		omap4_hdmi_mux_pads(flags);
 
 	return 0;
 }
diff --git a/include/video/omapdss.h b/include/video/omapdss.h
index c1e3cb0d2c5e..062b3b24ff10 100644
--- a/include/video/omapdss.h
+++ b/include/video/omapdss.h
@@ -200,6 +200,10 @@ enum omap_dss_clk_source {
 	OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI,	/* OMAP4: PLL2_CLK2 */
 };
 
+enum omap_hdmi_flags {
+	OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP = 1 << 0,
+};
+
 /* RFBI */
 
 struct rfbi_timings {
@@ -310,7 +314,7 @@ struct omap_dss_board_info {
 /* Init with the board info */
 extern int omap_display_init(struct omap_dss_board_info *board_data);
 /* HDMI mux init*/
-extern int omap_hdmi_init(void);
+extern int omap_hdmi_init(enum omap_hdmi_flags flags);
 
 struct omap_display_platform_data {
 	struct omap_dss_board_info *board_data;