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DRM: Armada: add support for drm tda19988 driver 

Add support for TDA998x output via the slave driver in the kernel.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2013-05-04 20:08:27 +01:00
parent dfdba7fd60
commit 585b691e21
2 changed files with 51 additions and 0 deletions
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9
drivers/gpu/drm/armada/Kconfig
View File

@ -13,3 +13,12 @@ config DRM_ARMADA
This driver provides no built-in acceleration; acceleration is This driver provides no built-in acceleration; acceleration is
performed by other IP found on the SoC. This driver provides performed by other IP found on the SoC. This driver provides
kernel mode setting and buffer management to userspace. kernel mode setting and buffer management to userspace.
config DRM_ARMADA_TDA1998X
bool "Support TDA1998X HDMI output"
depends on DRM_ARMADA != n
depends on I2C && DRM_I2C_NXP_TDA998X = y
default y
help
Support the TDA1998x HDMI output device found on the Solid-Run
CuBox.

42
drivers/gpu/drm/armada/armada_drv.c
View File

@ -16,6 +16,42 @@
#include <drm/armada_drm.h> #include <drm/armada_drm.h>
#include "armada_ioctlP.h" #include "armada_ioctlP.h"
#ifdef CONFIG_DRM_ARMADA_TDA1998X
#include <drm/i2c/tda998x.h>
#include "armada_slave.h"
static struct tda998x_encoder_params params = {
/* With 0x24, there is no translation between vp_out and int_vp
FB LCD out Pins VIP Int Vp
R:23:16 R:7:0 VPC7:0 7:0 7:0[R]
G:15:8 G:15:8 VPB7:0 23:16 23:16[G]
B:7:0 B:23:16 VPA7:0 15:8 15:8[B]
*/
.swap_a = 2,
.swap_b = 3,
.swap_c = 4,
.swap_d = 5,
.swap_e = 0,
.swap_f = 1,
.audio_cfg = BIT(2),
.audio_frame[1] = 1,
.audio_format = AFMT_SPDIF,
.audio_sample_rate = 44100,
};
static const struct armada_drm_slave_config tda19988_config = {
.i2c_adapter_id = 0,
.crtcs = 1 << 0, /* Only LCD0 at the moment */
.polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT,
.interlace_allowed = true,
.info = {
.type = "tda998x",
.addr = 0x70,
.platform_data = &params,
},
};
#endif
static void armada_drm_unref_work(struct work_struct *work) static void armada_drm_unref_work(struct work_struct *work)
{ {
struct armada_private *priv = struct armada_private *priv =
@ -134,6 +170,12 @@ static int armada_drm_load(struct drm_device *dev, unsigned long flags)
goto err_kms; goto err_kms;
} }
#ifdef CONFIG_DRM_ARMADA_TDA1998X
ret = armada_drm_connector_slave_create(dev, &tda19988_config);
if (ret)
goto err_kms;
#endif
ret = drm_vblank_init(dev, n); ret = drm_vblank_init(dev, n);
if (ret) if (ret)
goto err_kms; goto err_kms;