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Commit 585b691e authored by Russell King's avatar Russell King
Browse files

DRM: Armada: add support for drm tda19988 driver 



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

Reviewed-by: default avatarRob Clark <robdclark@gmail.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent dfdba7fd

drivers/gpu/drm/armada/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -13,3 +13,12 @@ config DRM_ARMADA 
	  This driver provides no built-in acceleration; acceleration is

	  performed by other IP found on the SoC.  This driver provides

	  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.

drivers/gpu/drm/armada/armada_drv.c

+42 −0
Original line number Diff line number Diff line
@@ -16,6 +16,42 @@ 
#include <drm/armada_drm.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)

{

	struct armada_private *priv =
@@ -134,6 +170,12 @@ static int armada_drm_load(struct drm_device *dev, unsigned long flags) 
			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);

	if (ret)

		goto err_kms;