drm/amd/display: Fix RGB MPO underflow with multiple displays

Browse source

[WHY]
With RGB MPO enabled, playing a video with multiple displays connected
results in underflow when closing the video window

[HOW]
Reverted the old change to fix this problem, which prevented pipe splits
for multiple display configurations and caused high MCLK speeds during
idle. Added a two step call to dc_update_planes_and_stream, first time
with pipe split disabled and the second time with pipe split enabled,
which fixed the underflow issue

Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Angus Wang <angus.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Angus Wang 2021-11-04 16:51:58 -04:00 • committed by Alex Deucher

parent 1f6c9ab06f

commit 80c5f69b94

4 changed files with 4 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

View file

2

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c

View file

2

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c

View file

2

drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c

View file