commit d4252eee1f7cde7f8b1673626d1b49498c1d4f77
author Stylon Wang <stylon.wang@amd.com> Tue Aug 20 14:48:37 2019 -0400
committer Alex Deucher <alexander.deucher@amd.com> Tue Sep 17 08:06:54 2019 -0500
tree 3335d30c1cb7203b2fafd872dac052899455c121
parent 747012382937e4b6eb34ba730e815f9da836e454

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>