drm/amd/display: clear optc underflow before turn off odm clock

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[ Upstream commit b2a9349020 ]

[Why]
After ODM clock off, optc underflow bit will be kept there always and clear not work.
We need to clear that before clock off.

[How]
Clear that if have when clock off.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Fudong Wang <Fudong.Wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Fudong Wang 2022-07-27 12:01:29 +08:00 • committed by Greg Kroah-Hartman

parent c6f7ba837e

commit 3101839b08

1 changed files with 5 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c

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