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| author | Mikita Lipski <mikita.lipski@amd.com> | 2018-07-04 09:27:02 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-05 16:40:04 -0500 |
| commit | fe61a2f1a57fea5d7b3d27d019fa67e1bc5b7079 (patch) | |
| tree | 33102852708da14aa169475ac09b04a8df138708 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 87e3f1366eaa82c78b826b38008987406470b03d (diff) | |
| download | lwn-fe61a2f1a57fea5d7b3d27d019fa67e1bc5b7079.tar.gz lwn-fe61a2f1a57fea5d7b3d27d019fa67e1bc5b7079.zip | |
drm/amd/display: adding ycbcr420 pixel encoding for hdmi
[why]
HDMI EDID's VSDB contains spectial timings for specifically
YCbCr 4:2:0 colour space. In those cases we need to verify
if the mode provided is one of the special ones has to use
YCbCr 4:2:0 pixel encoding for display info.
[how]
Verify if the mode is using specific ycbcr420 colour space with
the help of DRM helper function and assign the mode to use
ycbcr420 pixel encoding.
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 74683071fa81..1386c857546d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2184,6 +2184,7 @@ fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream, const struct drm_connector *connector) { struct dc_crtc_timing *timing_out = &stream->timing; + const struct drm_display_info *info = &connector->display_info; memset(timing_out, 0, sizeof(struct dc_crtc_timing)); @@ -2192,8 +2193,10 @@ fill_stream_properties_from_drm_display_mode(struct dc_stream_state *stream, timing_out->v_border_top = 0; timing_out->v_border_bottom = 0; /* TODO: un-hardcode */ - - if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444) + if (drm_mode_is_420_only(info, mode_in) + && stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) + timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; + else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444) && stream->sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444; else |