From de34006cb297a391cae437bb462736247c8cc119 Mon Sep 17 00:00:00 2001 From: Eric Yang Date: Fri, 14 Sep 2018 13:53:14 -0400 Subject: [PATCH 0450/2940] 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 Reviewed-by: Tony Cheng Acked-by: Leo Li --- drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 3 +++ drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c | 3 +++ 2 files changed, 6 insertions(+) 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; diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c index 6f675206a136..bef0011a98b0 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c @@ -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; -- 2.17.1