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drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range

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Both hsync/vsync polarity and interlace mode can be parsed from
drm display mode, and dynamic_range and ycbcr_coeff can be judge
by the video code.

But presumably Exynos still relies on the DT properties, so take
good use of mode_fixup() in to achieve the compatibility hacks.

Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
This commit is contained in:
Yakir Yang 2016-02-15 19:10:11 +08:00
parent 40fc7ce7db
commit 793ce4eb84
3 changed files with 103 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

148
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
View File

@ -893,8 +893,8 @@ static void analogix_dp_commit(struct analogix_dp_device *dp)
return;
}
ret = analogix_dp_set_link_train(dp, dp->video_info->lane_count,
dp->video_info->link_rate);
ret = analogix_dp_set_link_train(dp, dp->video_info.lane_count,
dp->video_info.link_rate);
if (ret) {
dev_err(dp->dev, "unable to do link train\n");
return;
@ -1077,6 +1077,85 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
dp->dpms_mode = DRM_MODE_DPMS_OFF;
}
static void analogix_dp_bridge_mode_set(struct drm_bridge *bridge,
struct drm_display_mode *orig_mode,
struct drm_display_mode *mode)
{
struct analogix_dp_device *dp = bridge->driver_private;
struct drm_display_info *display_info = &dp->connector.display_info;
struct video_info *video = &dp->video_info;
struct device_node *dp_node = dp->dev->of_node;
int vic;
/* Input video interlaces & hsync pol & vsync pol */
video->interlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
video->v_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NVSYNC);
video->h_sync_polarity = !!(mode->flags & DRM_MODE_FLAG_NHSYNC);
/* Input video dynamic_range & colorimetry */
vic = drm_match_cea_mode(mode);
if ((vic == 6) || (vic == 7) || (vic == 21) || (vic == 22) ||
(vic == 2) || (vic == 3) || (vic == 17) || (vic == 18)) {
video->dynamic_range = CEA;
video->ycbcr_coeff = COLOR_YCBCR601;
} else if (vic) {
video->dynamic_range = CEA;
video->ycbcr_coeff = COLOR_YCBCR709;
} else {
video->dynamic_range = VESA;
video->ycbcr_coeff = COLOR_YCBCR709;
}
/* Input vide bpc and color_formats */
switch (display_info->bpc) {
case 12:
video->color_depth = COLOR_12;
break;
case 10:
video->color_depth = COLOR_10;
break;
case 8:
video->color_depth = COLOR_8;
break;
case 6:
video->color_depth = COLOR_6;
break;
default:
video->color_depth = COLOR_8;
break;
}
if (display_info->color_formats & DRM_COLOR_FORMAT_YCRCB444)
video->color_space = COLOR_YCBCR444;
else if (display_info->color_formats & DRM_COLOR_FORMAT_YCRCB422)
video->color_space = COLOR_YCBCR422;
else if (display_info->color_formats & DRM_COLOR_FORMAT_RGB444)
video->color_space = COLOR_RGB;
else
video->color_space = COLOR_RGB;
/*
* NOTE: those property parsing code is used for providing backward
* compatibility for samsung platform.
* Due to we used the "of_property_read_u32" interfaces, when this
* property isn't present, the "video_info" can keep the original
* values and wouldn't be modified.
*/
of_property_read_u32(dp_node, "samsung,color-space",
&video->color_space);
of_property_read_u32(dp_node, "samsung,dynamic-range",
&video->dynamic_range);
of_property_read_u32(dp_node, "samsung,ycbcr-coeff",
&video->ycbcr_coeff);
of_property_read_u32(dp_node, "samsung,color-depth",
&video->color_depth);
if (of_property_read_bool(dp_node, "hsync-active-high"))
video->h_sync_polarity = true;
if (of_property_read_bool(dp_node, "vsync-active-high"))
video->v_sync_polarity = true;
if (of_property_read_bool(dp_node, "interlaced"))
video->interlaced = true;
}
static void analogix_dp_bridge_nop(struct drm_bridge *bridge)
{
/* do nothing */
@ -1087,6 +1166,7 @@ static const struct drm_bridge_funcs analogix_dp_bridge_funcs = {
.disable = analogix_dp_bridge_disable,
.pre_enable = analogix_dp_bridge_nop,
.post_disable = analogix_dp_bridge_nop,
.mode_set = analogix_dp_bridge_mode_set,
.attach = analogix_dp_bridge_attach,
};
@ -1118,62 +1198,24 @@ static int analogix_dp_create_bridge(struct drm_device *drm_dev,
return 0;
}
static struct video_info *analogix_dp_dt_parse_pdata(struct device *dev)
static int analogix_dp_dt_parse_pdata(struct analogix_dp_device *dp)
{
struct device_node *dp_node = dev->of_node;
struct video_info *dp_video_config;
dp_video_config = devm_kzalloc(dev, sizeof(*dp_video_config),
GFP_KERNEL);
if (!dp_video_config)
return ERR_PTR(-ENOMEM);
dp_video_config->h_sync_polarity =
of_property_read_bool(dp_node, "hsync-active-high");
dp_video_config->v_sync_polarity =
of_property_read_bool(dp_node, "vsync-active-high");
dp_video_config->interlaced =
of_property_read_bool(dp_node, "interlaced");
if (of_property_read_u32(dp_node, "samsung,color-space",
&dp_video_config->color_space)) {
dev_err(dev, "failed to get color-space\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,dynamic-range",
&dp_video_config->dynamic_range)) {
dev_err(dev, "failed to get dynamic-range\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,ycbcr-coeff",
&dp_video_config->ycbcr_coeff)) {
dev_err(dev, "failed to get ycbcr-coeff\n");
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(dp_node, "samsung,color-depth",
&dp_video_config->color_depth)) {
dev_err(dev, "failed to get color-depth\n");
return ERR_PTR(-EINVAL);
}
struct device_node *dp_node = dp->dev->of_node;
struct video_info *video_info = &dp->video_info;
if (of_property_read_u32(dp_node, "samsung,link-rate",
&dp_video_config->link_rate)) {
dev_err(dev, "failed to get link-rate\n");
return ERR_PTR(-EINVAL);
&video_info->link_rate)) {
dev_err(dp->dev, "failed to get link-rate\n");
return -EINVAL;
}
if (of_property_read_u32(dp_node, "samsung,lane-count",
&dp_video_config->lane_count)) {
dev_err(dev, "failed to get lane-count\n");
return ERR_PTR(-EINVAL);
&video_info->lane_count)) {
dev_err(dp->dev, "failed to get lane-count\n");
return -EINVAL;
}
return dp_video_config;
return 0;
}
int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
@ -1206,9 +1248,9 @@ int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
*/
dp->plat_data = plat_data;
dp->video_info = analogix_dp_dt_parse_pdata(&pdev->dev);
if (IS_ERR(dp->video_info))
return PTR_ERR(dp->video_info);
ret = analogix_dp_dt_parse_pdata(dp);
if (ret)
return ret;
dp->phy = devm_phy_get(dp->dev, "dp");
if (IS_ERR(dp->phy)) {

2
drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
View File

@ -148,7 +148,7 @@ struct analogix_dp_device {
unsigned int irq;
void __iomem *reg_base;
struct video_info *video_info;
struct video_info video_info;
struct link_train link_train;
struct work_struct hotplug_work;
struct phy *phy;

14
drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
View File

@ -1084,15 +1084,15 @@ void analogix_dp_set_video_color_format(struct analogix_dp_device *dp)
u32 reg;
/* Configure the input color depth, color space, dynamic range */
reg = (dp->video_info->dynamic_range << IN_D_RANGE_SHIFT) |
(dp->video_info->color_depth << IN_BPC_SHIFT) |
(dp->video_info->color_space << IN_COLOR_F_SHIFT);
reg = (dp->video_info.dynamic_range << IN_D_RANGE_SHIFT) |
(dp->video_info.color_depth << IN_BPC_SHIFT) |
(dp->video_info.color_space << IN_COLOR_F_SHIFT);
writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_2);
/* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
reg &= ~IN_YC_COEFFI_MASK;
if (dp->video_info->ycbcr_coeff)
if (dp->video_info.ycbcr_coeff)
reg |= IN_YC_COEFFI_ITU709;
else
reg |= IN_YC_COEFFI_ITU601;
@ -1229,17 +1229,17 @@ void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp)
reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
reg &= ~INTERACE_SCAN_CFG;
reg |= (dp->video_info->interlaced << 2);
reg |= (dp->video_info.interlaced << 2);
writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
reg &= ~VSYNC_POLARITY_CFG;
reg |= (dp->video_info->v_sync_polarity << 1);
reg |= (dp->video_info.v_sync_polarity << 1);
writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
reg &= ~HSYNC_POLARITY_CFG;
reg |= (dp->video_info->h_sync_polarity << 0);
reg |= (dp->video_info.h_sync_polarity << 0);
writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;