summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i2c
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@arm.linux.org.uk>2013-08-14 21:43:29 +0200
committerDave Airlie <airlied@redhat.com>2013-08-19 09:10:19 +1000
commit5e74c22cd1e0f9e49573fe580de47e198ee04975 (patch)
tree1d8cdbc82a6f70afb4eec6d74460528aa04d98f2 /drivers/gpu/drm/i2c
parent20c17675fea9ddf94b8249a67fb95fd26e732baf (diff)
downloadblackbird-op-linux-5e74c22cd1e0f9e49573fe580de47e198ee04975.tar.gz
blackbird-op-linux-5e74c22cd1e0f9e49573fe580de47e198ee04975.zip
drm/i2c: tda998x: prepare for video input configuration
The video-input-port (VIP) is highly configurable. This prepares current driver to allow to configure VIP configuration, as some boards connect lcd controller and TDA998x "pin-swapped" and depend on VIP to swap the pins by register configuration. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Darren Etheridge <detheridge@ti.com> Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: Russell King <rmk_kernel@arm.linux.org.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i2c')
-rw-r--r--drivers/gpu/drm/i2c/tda998x_drv.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index a701411fcc0d..527d11b5ff14 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -32,6 +32,9 @@ struct tda998x_priv {
uint16_t rev;
uint8_t current_page;
int dpms;
+ u8 vip_cntrl_0;
+ u8 vip_cntrl_1;
+ u8 vip_cntrl_2;
};
#define to_tda998x_priv(x) ((struct tda998x_priv *)to_encoder_slave(x)->slave_priv)
@@ -448,12 +451,9 @@ tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
reg_write(encoder, REG_ENA_VP_1, 0xff);
reg_write(encoder, REG_ENA_VP_2, 0xff);
/* set muxing after enabling ports: */
- reg_write(encoder, REG_VIP_CNTRL_0,
- VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3));
- reg_write(encoder, REG_VIP_CNTRL_1,
- VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1));
- reg_write(encoder, REG_VIP_CNTRL_2,
- VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5));
+ reg_write(encoder, REG_VIP_CNTRL_0, priv->vip_cntrl_0);
+ reg_write(encoder, REG_VIP_CNTRL_1, priv->vip_cntrl_1);
+ reg_write(encoder, REG_VIP_CNTRL_2, priv->vip_cntrl_2);
break;
case DRM_MODE_DPMS_OFF:
/* disable audio and video ports */
@@ -823,6 +823,10 @@ tda998x_encoder_init(struct i2c_client *client,
if (!priv)
return -ENOMEM;
+ priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3);
+ priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1);
+ priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5);
+
priv->current_page = 0;
priv->cec = i2c_new_dummy(client->adapter, 0x34);
priv->dpms = DRM_MODE_DPMS_OFF;
OpenPOWER on IntegriCloud