drm/amd/display: Fix hang/underflow when transitioning to ODM4:1
[ Upstream commit e7b2b108 ] [Why] Under some circumstances, disabling an OPTC and attempting to reclaim its OPP(s) for a different OPTC could cause a hang/underflow due to OPPs not being properly disconnected from the disabled OPTC. [How] Ensure that all OPPs are unassigned from an OPTC when it gets disabled. Reviewed-by:Alvin Lee <alvin.lee2@amd.com> Acked-by:
Wayne Lin <wayne.lin@amd.com> Signed-off-by:
Ilya Bakoulin <ilya.bakoulin@amd.com> Tested-by:
Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Stable-dep-of: b4e05bb1 ("drm/amd/display: Clear OPTC mem select on disable") Signed-off-by:
Sasha Levin <sashal@kernel.org>
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