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| author |   Alvin Lee <Alvin.Lee2@amd.com> | 2022-10-20 18:33:05 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-11-09 17:25:39 -0500 |
| commit | 9e7d03e8b046c84e1b2973a29cd800495a5a2f09 (patch) | |
| tree | 4ef074a3ada974989651d31a691bb7b877ebdc43 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | |
| parent | drm/amd/display: Zeromem mypipe heap struct before using it (diff) | |
| download | linux-rng-9e7d03e8b046c84e1b2973a29cd800495a5a2f09.tar.xz linux-rng-9e7d03e8b046c84e1b2973a29cd800495a5a2f09.zip | |
drm/amd/display: Use min transition for SubVP into MPO
[Description]
- For SubVP transitioning into MPO, we want to
use a minimal transition to prevent transient
underflow
- Transitioning a phantom pipe directly into a
"real" pipe can result in underflow due to the
HUBP still having it's "phantom" programming
when HUBP is unblanked (have to wait for next
VUPDATE of the new OTG)
- Also ensure subvp pipe lock is acquired early
enough for programming in dc_commit_state_no_check
- When disabling phantom planes, enable phantom OTG
first so the disable gets the double buffer update
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c')
0 files changed, 0 insertions, 0 deletions