diff options
| author | Stylon Wang <stylon.wang@amd.com> | 2019-08-20 14:48:37 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-09-17 08:06:54 -0500 |
| commit | d4252eee1f7cde7f8b1673626d1b49498c1d4f77 (patch) | |
| tree | 3335d30c1cb7203b2fafd872dac052899455c121 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 747012382937e4b6eb34ba730e815f9da836e454 (diff) | |
| download | linux-d4252eee1f7cde7f8b1673626d1b49498c1d4f77.tar.bz2 | |
drm/amd/display: Add debugfs entry to force YUV420 output
[Why]
Even if YUV420 is available for video mode, YUV444 is still
automatically selected. This poses a problem for compliance tests.
[How]
Add a per-connector debugfs entry "force_yuv420_output" to force
selection of YUV420 mode.
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@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/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 |
1 files changed, 4 insertions, 1 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 130da9f1b1dd..b5ff7cf696c5 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3312,7 +3312,7 @@ static void fill_stream_properties_from_drm_display_mode( { struct dc_crtc_timing *timing_out = &stream->timing; const struct drm_display_info *info = &connector->display_info; - + struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector); memset(timing_out, 0, sizeof(struct dc_crtc_timing)); timing_out->h_border_left = 0; @@ -3323,6 +3323,9 @@ static void fill_stream_properties_from_drm_display_mode( if (drm_mode_is_420_only(info, mode_in) && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; + else if (drm_mode_is_420_also(info, mode_in) + && aconnector->force_yuv420_output) + timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420; else if ((connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB444) && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444; |