drm/amdgpu: reset gpu for s3 suspend abort case

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In the s3 suspend abort case some type of gfx9 power
rail not turn off from FCH side and this will put the
GPU in an unknown power status, so let's reset the gpu
to a known good power state before reinitialize gpu
device.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Prike Liang 2024-01-17 13:39:37 +08:00 • committed by Alex Deucher

parent 93bafa32a6

commit 6ef82ac664

1 changed files with 22 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/soc15.c

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