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authorEric Yang2018-09-14 19:53:14 +0200
committerAlex Deucher2018-10-10 00:02:08 +0200
commitb7cd6487a52484bed5ba5424177f7a90166bcaac (patch)
treec54b951dc2e418bf7517c8c9365e1715f8d8a587 /drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
parentdrm/amd/display: Add function to fetch clock requirements (diff)
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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: Eric Yang <Eric.Yang2@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
index 4942590e8b9c..70eb9472ccd9 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -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;