From: Joshua Ashton <joshua@xxxxxxxxx> commit 79601b894849cb6f6d6122e6590f1887ac4a66b3 upstream. Code in get_output_color_space depends on knowing the pixel encoding to determine whether to pick between eg. COLOR_SPACE_SRGB or COLOR_SPACE_YCBCR709 for transparent RGB -> YCbCr 4:4:4 in the driver. v2: Fixed patch being accidentally based on a personal feature branch, oops! Fixes: ea117312ea9f ("drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded") Reviewed-by: Melissa Wen <mwen@xxxxxxxxxx> Signed-off-by: Joshua Ashton <joshua@xxxxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5283,8 +5283,6 @@ static void fill_stream_properties_from_ timing_out->aspect_ratio = get_aspect_ratio(mode_in); - stream->output_color_space = get_output_color_space(timing_out); - stream->out_transfer_func->type = TF_TYPE_PREDEFINED; stream->out_transfer_func->tf = TRANSFER_FUNCTION_SRGB; if (stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) { @@ -5295,6 +5293,8 @@ static void fill_stream_properties_from_ adjust_colour_depth_from_display_info(timing_out, info); } } + + stream->output_color_space = get_output_color_space(timing_out); } static void fill_audio_info(struct audio_info *audio_info,