drm/amd/display: Don't use fsleep for PSR exit waits

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[Why]
These functions can be called from high IRQ levels and the OS will hang
if it tries to use a usleep_highres or a msleep.

[How]
Replace the fsleep with a udelay.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@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>

...

This commit is contained in:

Nicholas Kazlauskas 2023-09-27 15:06:41 -04:00 • committed by Alex Deucher

parent ddd5298c63

commit 79df45dc4b

2 changed files with 4 additions and 2 deletions

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3

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

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3

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

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