Commit fe61a2f1 authored by Mikita Lipski's avatar Mikita Lipski Committed by Alex Deucher

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: default avatarMikita Lipski <mikita.lipski@amd.com>
Tested-by: default avatarMike Lothian <mike@fireburn.co.uk>
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 87e3f136
......@@ -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
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment