From 088962c243db42b9c608f30be3e3a05a5b696895 Mon Sep 17 00:00:00 2001
From: Andrew de Quincey <adq_dvb@lidskialf.net>
Date: Thu, 28 May 2009 14:03:31 -0700
Subject: [PATCH] ARM: OMAP1: Make 770 LCD work

Make 770 LCD work by adding clk_add_alias().
Also remove the old unused functions.

Note that the clk_add_alias() could probably be moved
to arch/arm/clkdev.c later on.

Cc: linux-fbdev-devel@lists.sourceforge.net
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com
---
 arch/arm/mach-omap1/board-nokia770.c     | 12 +++++++++++
 arch/arm/plat-omap/include/mach/hwa742.h |  4 ----
 drivers/video/omap/hwa742.c              | 26 +++++++++---------------
 3 files changed, 22 insertions(+), 20 deletions(-)

diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index 8780ca666398..e70fc7c66bbb 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -33,9 +33,11 @@
 #include <mach/common.h>
 #include <mach/dsp_common.h>
 #include <mach/omapfb.h>
+#include <mach/hwa742.h>
 #include <mach/lcd_mipid.h>
 #include <mach/mmc.h>
 #include <mach/usb.h>
+#include <mach/clock.h>
 
 #define ADS7846_PENDOWN_GPIO	15
 
@@ -163,6 +165,15 @@ static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 	},
 };
 
+static struct hwa742_platform_data nokia770_hwa742_platform_data = {
+	.te_connected		= 1,
+};
+
+static void hwa742_dev_init(void)
+{
+	clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
+	omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
+}
 
 /* assume no Mini-AB port */
 
@@ -371,6 +382,7 @@ static void __init omap_nokia770_init(void)
 	omap_serial_init();
 	omap_register_i2c_bus(1, 100, NULL, 0);
 	omap_dsp_init();
+	hwa742_dev_init();
 	ads7846_dev_init();
 	mipid_dev_init();
 	omap_usb_init(&nokia770_usb_config);
diff --git a/arch/arm/plat-omap/include/mach/hwa742.h b/arch/arm/plat-omap/include/mach/hwa742.h
index 577f492f2d3c..886248d32b49 100644
--- a/arch/arm/plat-omap/include/mach/hwa742.h
+++ b/arch/arm/plat-omap/include/mach/hwa742.h
@@ -2,10 +2,6 @@
 #define _HWA742_H
 
 struct hwa742_platform_data {
-	void		(*power_up)(struct device *dev);
-	void		(*power_down)(struct device *dev);
-	unsigned long	(*get_clock_rate)(struct device *dev);
-
 	unsigned	te_connected:1;
 };
 
diff --git a/drivers/video/omap/hwa742.c b/drivers/video/omap/hwa742.c
index 8aa6e47202b9..5d4f34887a22 100644
--- a/drivers/video/omap/hwa742.c
+++ b/drivers/video/omap/hwa742.c
@@ -133,8 +133,7 @@ struct {
 	struct lcd_ctrl_extif	*extif;
 	struct lcd_ctrl		*int_ctrl;
 
-	void			(*power_up)(struct device *dev);
-	void			(*power_down)(struct device *dev);
+	struct clk		*sys_ck;
 } hwa742;
 
 struct lcd_ctrl hwa742_ctrl;
@@ -915,14 +914,13 @@ static void hwa742_suspend(void)
 	hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED);
 	/* Enable sleep mode */
 	hwa742_write_reg(HWA742_POWER_SAVE, 1 << 1);
-	if (hwa742.power_down != NULL)
-		hwa742.power_down(hwa742.fbdev->dev);
+	clk_disable(hwa742.sys_ck);
 }
 
 static void hwa742_resume(void)
 {
-	if (hwa742.power_up != NULL)
-		hwa742.power_up(hwa742.fbdev->dev);
+	clk_enable(hwa742.sys_ck);
+
 	/* Disable sleep mode */
 	hwa742_write_reg(HWA742_POWER_SAVE, 0);
 	while (1) {
@@ -955,14 +953,13 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
 	omapfb_conf = fbdev->dev->platform_data;
 	ctrl_conf = omapfb_conf->ctrl_platform_data;
 
-	if (ctrl_conf == NULL || ctrl_conf->get_clock_rate == NULL) {
+	if (ctrl_conf == NULL) {
 		dev_err(fbdev->dev, "HWA742: missing platform data\n");
 		r = -ENOENT;
 		goto err1;
 	}
 
-	hwa742.power_down = ctrl_conf->power_down;
-	hwa742.power_up = ctrl_conf->power_up;
+	hwa742.sys_ck = clk_get(NULL, "hwa_sys_ck");
 
 	spin_lock_init(&hwa742.req_lock);
 
@@ -972,12 +969,11 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
 	if ((r = hwa742.extif->init(fbdev)) < 0)
 		goto err2;
 
-	ext_clk = ctrl_conf->get_clock_rate(fbdev->dev);
+	ext_clk = clk_get_rate(hwa742.sys_ck);
 	if ((r = calc_extif_timings(ext_clk, &extif_mem_div)) < 0)
 		goto err3;
 	hwa742.extif->set_timings(&hwa742.reg_timings);
-	if (hwa742.power_up != NULL)
-		hwa742.power_up(fbdev->dev);
+	clk_enable(hwa742.sys_ck);
 
 	calc_hwa742_clk_rates(ext_clk, &sys_clk, &pix_clk);
 	if ((r = calc_extif_timings(sys_clk, &extif_mem_div)) < 0)
@@ -1040,8 +1036,7 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
 
 	return 0;
 err4:
-	if (hwa742.power_down != NULL)
-		hwa742.power_down(fbdev->dev);
+	clk_disable(hwa742.sys_ck);
 err3:
 	hwa742.extif->cleanup();
 err2:
@@ -1055,8 +1050,7 @@ static void hwa742_cleanup(void)
 	hwa742_set_update_mode(OMAPFB_UPDATE_DISABLED);
 	hwa742.extif->cleanup();
 	hwa742.int_ctrl->cleanup();
-	if (hwa742.power_down != NULL)
-		hwa742.power_down(hwa742.fbdev->dev);
+	clk_disable(hwa742.sys_ck);
 }
 
 struct lcd_ctrl hwa742_ctrl = {