]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/amd/display: Changed pipe split policy to allow for multi-display pipe split
authorAngus Wang <angus.wang@amd.com>
Thu, 9 Dec 2021 22:27:01 +0000 (17:27 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 28 Dec 2021 22:02:31 +0000 (17:02 -0500)
commitee2698cf79cc759a397c61086c758d4cc85938bf
tree95c999ac51c8621f7926897a63a60522945b9dca
parent33bb63915fee190102cae7d6576bc51a0bc342b2
drm/amd/display: Changed pipe split policy to allow for multi-display pipe split

[WHY]
Current implementation of pipe split policy prevents pipe split with
multiple displays connected, which caused the MCLK speed to be stuck at
max

[HOW]
Changed the pipe split policies so that pipe split is allowed for
multi-display configurations

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1522
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1709
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1655
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1403

Note this is a backport of this commit from amdgpu drm-next for 5.16.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Angus Wang <angus.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c