drm/amd/powerplay: wake up azalia from d3 by sending smu message

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this is hw workaround to wake up azalia from d3. display asic
and azalia are two different pci devices. while display asic
wake from d3, current hw does not send signal to azalia.
workaround: display driver ask smu send message to azalia device
to let azalia wake up.

Defintion of SMU message, like PPSMC_MSG_BacroAudioD3PME, is per
asic. It is shared by different OS.

Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

hersen wu 2019-05-21 15:38:59 -04:00 • committed by Alex Deucher

parent 2e13c7551c

commit 26e2b58148

4 changed files with 19 additions and 1 deletions

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4

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

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3

drivers/gpu/drm/amd/powerplay/inc/smu_v11_0_ppsmc.h

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1

drivers/gpu/drm/amd/powerplay/navi10_ppt.c

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12

drivers/gpu/drm/amd/powerplay/smu_v11_0.c

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