diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4713-drm-amd-display-adding-ycbcr420-pixel-encoding-for-h.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4713-drm-amd-display-adding-ycbcr420-pixel-encoding-for-h.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4713-drm-amd-display-adding-ycbcr420-pixel-encoding-for-h.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4713-drm-amd-display-adding-ycbcr420-pixel-encoding-for-h.patch new file mode 100644 index 00000000..a151faf3 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4713-drm-amd-display-adding-ycbcr420-pixel-encoding-for-h.patch @@ -0,0 +1,52 @@ +From a47beb902eae45b2392cfedc8267fe13bcccefec Mon Sep 17 00:00:00 2001 +From: Mikita Lipski <mikita.lipski@amd.com> +Date: Wed, 4 Jul 2018 17:26:26 -0400 +Subject: [PATCH 4713/5725] drm/amd/display: adding ycbcr420 pixel encoding for + hdmi + +[why] +HDMI EDID's VSDB contains spectial timings for specifically +YCbCr 4:2:0 colour space. In those cases we need to verify +if the mode provided is one of the special ones has to use +YCbCr 4:2:0 pixel encoding for display info. +[how] +Verify if the mode is using specific ycbcr420 colour space with +the help of DRM helper function and assign the mode to use +ycbcr420 pixel encoding. + +Tested-by: Mike Lothian <mike@fireburn.co.uk> +Reviewed-by: Harry Wentland <harry.wentland@amd.com> +Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++-- + 1 file changed, 5 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +index 0543cb1..8d60833 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +@@ -2413,6 +2413,7 @@ fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream, + const struct drm_connector *connector) + { + struct dc_crtc_timing *timing_out = &stream->timing; ++ const struct drm_display_info *info = &connector->display_info; + + memset(timing_out, 0, sizeof(struct dc_crtc_timing)); + +@@ -2421,8 +2422,10 @@ fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream, + timing_out->v_border_top = 0; + timing_out->v_border_bottom = 0; + /* TODO: un-hardcode */ +- +- if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444) ++ if (drm_mode_is_420_only(info, mode_in) ++ && stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) ++ timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; ++ else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444) + && stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) + timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444; + else +-- +2.7.4 + |