diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/5491-drm-amd-display-block-DP-YCbCr420-modes.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/5491-drm-amd-display-block-DP-YCbCr420-modes.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/5491-drm-amd-display-block-DP-YCbCr420-modes.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/5491-drm-amd-display-block-DP-YCbCr420-modes.patch new file mode 100644 index 00000000..eb1f1440 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/5491-drm-amd-display-block-DP-YCbCr420-modes.patch @@ -0,0 +1,50 @@ +From 35024217fc7222f67364cb82ab5847115afd19de Mon Sep 17 00:00:00 2001 +From: Eric Yang <Eric.Yang2@amd.com> +Date: Fri, 14 Sep 2018 13:53:14 -0400 +Subject: [PATCH 5491/5725] 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> +--- + 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 4942590..70eb9472 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 6f67520..bef0011 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; +-- +2.7.4 + |