Commit b7cd6487 authored by Eric Yang's avatar Eric Yang Committed by Alex Deucher
Browse files

drm/amd/display: block DP YCbCr420 modes 



[why]
Currently not supported, will black screen when set.

[How]
Fail validate timing helper for those modes.

Signed-off-by: default avatarEric Yang <Eric.Yang2@amd.com>
Reviewed-by: default avatarTony Cheng <Tony.Cheng@amd.com>
Acked-by: default avatarLeo Li <sunpeng.li@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 8ab2180f

drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c

+3 −0
Original line number Diff line number Diff line
@@ -662,6 +662,9 @@ bool dce110_link_encoder_validate_dp_output( 
	const struct dce110_link_encoder *enc110,

	const struct dc_crtc_timing *crtc_timing)

{

	if (crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)

		return false;



	/* default RGB only */

	if (crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)

		return true;

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c

+3 −0
Original line number Diff line number Diff line
@@ -606,6 +606,9 @@ bool dcn10_link_encoder_validate_dp_output( 
	const struct dcn10_link_encoder *enc10,

	const struct dc_crtc_timing *crtc_timing)

{

	if (crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420)

		return false;



	/* default RGB only */

	if (crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB)

		return true;