[PATCH] drm/amdgpu: Only check for S0ix if AMD_PMC is configured

[Bhardwaj, Rajneesh]

Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj at amd.com>

On 2/26/2021 5:27 PM, Alex Deucher wrote:
> [CAUTION: External Email]
>
> The S0ix check only makes sense if the AMD PMC driver is
> present.  We need to use the legacy S3 pathes when the
> PMC driver is not present.
>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
> index 8155c54392c8..36a741d63ddc 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
> @@ -903,10 +903,11 @@ void amdgpu_acpi_fini(struct amdgpu_device *adev)
>    */
>   bool amdgpu_acpi_is_s0ix_supported(struct amdgpu_device *adev)
>   {
> +#if defined(CONFIG_AMD_PMC)
>          if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
>                  if (adev->flags & AMD_IS_APU)
>                          return true;
>          }
> -
> +#endif
>          return false;
>   }
> --
> 2.29.2
>
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