drm/amd/pm: workaround for audio noise issue

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On some Intel platforms, audio noise can be detected due to
high pcie speed switch latency.
This patch leaverages ppfeaturemask to fix to the highest pcie
speed then disable pcie switching.

v2:
coding style fix

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

...

This commit is contained in:

Kenneth Feng 2021-03-11 12:19:57 +08:00 • committed by Alex Deucher

parent ac5789ef92

commit 9d03730ecb

4 changed files with 166 additions and 11 deletions

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54

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c

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72

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_hwmgr.c

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24

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_hwmgr.c

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25

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.c

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