drm/amd/display: Increase timeout threshold for DMCUB reset

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[Why]
If we're backdoor loading the DMCUB performs more work than just
the PHY reset so we can end up resetting before the cleanup has fully
finished.

[How]
Increase timeout, add udelay between spins to guarantee a minimum.

Reviewed-by: Roy Chan <roy.chan@amd.com>
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Nicholas Kazlauskas 2021-08-03 12:03:10 -04:00 • committed by Alex Deucher

parent 19c618e613

commit 314c7629e2

1 changed files with 5 additions and 5 deletions

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drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c

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