drm/amd/display: Fix p-state allow debug index on dcn31

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[Why]
It changed since dcn30 but the hubbub31 constructor hasn't been
modified to reflect this.

[How]
Update the value in the constructor to 0x6 so we're checking the right
bits for p-state allow.

It worked before by accident, but can falsely assert 0 depending on HW
state transitions. The most frequent of which appears to be when
all pipes turn off during IGT tests.

Cc: Harry Wentland <harry.wentland@amd.com>

Fixes: e7031d8258 ("drm/amd/display: Add pstate verification and recovery for DCN31")
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Eric Yang <Eric.Yang2@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2022-03-18 11:10:34 -04:00 • committed by Alex Deucher

parent 93dde6ccd6

commit 3107e1a7ae

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubbub.c

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