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authorRussell King <rmk+kernel@arm.linux.org.uk>2013-05-04 20:08:27 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-10-18 16:00:33 +0100
commit585b691e2180e1501637050290292f77f5c30c7b (patch)
tree07db7ed1845a9f915fb657f4ec0248847698d61d /drivers/gpu/drm/armada
parentdfdba7fd60592818078e9ceec04ffa49347e1aed (diff)
downloadop-kernel-dev-585b691e2180e1501637050290292f77f5c30c7b.zip
op-kernel-dev-585b691e2180e1501637050290292f77f5c30c7b.tar.gz
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>
Diffstat (limited to 'drivers/gpu/drm/armada')
-rw-r--r--drivers/gpu/drm/armada/Kconfig9
-rw-r--r--drivers/gpu/drm/armada/armada_drv.c42
2 files changed, 51 insertions, 0 deletions
diff --git a/drivers/gpu/drm/armada/Kconfig b/drivers/gpu/drm/armada/Kconfig
index c7a0a94..87e62dd 100644
--- a/drivers/gpu/drm/armada/Kconfig
+++ b/drivers/gpu/drm/armada/Kconfig
@@ -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.
diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 7bfab9a..7aede90 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -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;
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