drm/amd/display: Return invalid state if GPINT times out

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[Why]
GPINT timeout is causing PSR_STATE_0 to be returned when it shouldn't.
We must guarantee that PSR is fully disabled before doing hw programming
on driver-side.

[How]
Return invalid state if GPINT command times out. Let existing retry
logic send the GPINT until successful.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Wyatt Wood 2021-02-19 12:21:47 -05:00 • committed by Alex Deucher

parent 45a1261b39

commit 8039bc7130

1 changed files with 10 additions and 5 deletions

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drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c

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