6.17-stable review patch. If anyone has any objections, please let me know.
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From: Mario Limonciello Mario.Limonciello@amd.com
[ Upstream commit 5e76bc677cb7c92b37d8bc66bb67a18922895be2 ]
[Why] fill_stream_properties_from_drm_display_mode() will not configure pixel encoding to YCBCR422 when the DRM color format supports YCBCR422 but not YCBCR420 or YCBCR4444. Instead it will fallback to RGB.
[How] Add support for YCBCR422 in pixel encoding mapping.
Suggested-by: Mauri Carvalho mcarvalho3@lenovo.com Reviewed-by: Wayne Lin wayne.lin@amd.com Signed-off-by: Mario Limonciello Mario.Limonciello@amd.com Signed-off-by: Ray Wu ray.wu@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++ 1 file changed, 3 insertions(+)
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 8eb2fc4133487..3762b3c0ef983 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6399,6 +6399,9 @@ static void fill_stream_properties_from_drm_display_mode( && aconnector && aconnector->force_yuv420_output) timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; + else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCBCR422) + && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) + timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR422; else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCBCR444) && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;