[PATCH] drm/amdgpu: Fix build error reported for some config

[Lazar, Lijo]

Reviewed-by: Lijo Lazar <lijo.lazar at amd.com>

On 7/27/2021 11:58 AM, Pratik Vishwakarma wrote:
> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: In function ‘amdgpu_acpi_is_s0ix_active’:
> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:1045:32: error: ‘pm_suspend_target_state’ undeclared (first use in this function)
>   1045 |                         return pm_suspend_target_state == PM_SUSPEND_TO_IDLE;
>        |                                ^~~~~~~~~~~~~~~~~~~~~~~
> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:1045:32: note: each undeclared identifier is reported only once for each function it appears in
>    CC [M]  drivers/media/usb/dvb-usb/nova-t-usb2.o
>    CC [M]  drivers/usb/gadget/legacy/audio.o
>    CC [M]  drivers/net/ethernet/intel/igc/igc_tsn.o
>    CC [M]  net/mac80211/mlme.o
> drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:1045:59: error: ‘PM_SUSPEND_TO_IDLE’ undeclared (first use in this function)
>   1045 |                         return pm_suspend_target_state == PM_SUSPEND_TO_IDLE;
>        |                                                           ^~~~~~~~~~~~~~~~~~
>    CC [M]  drivers/usb/gadget/function/f_sourcesink.o
> make[4]: *** [scripts/Makefile.build:272: drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.o] Error 1
> make[3]: *** [scripts/Makefile.build:515: drivers/gpu/drm/amd/amdgpu] Error 2
> 
> Check if PM_SLEEP and SUSPEND are supported.
> 
> Fixes: 69e81db337c1 drm/amdgpu: Check pmops for desired suspend state
> Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
> index 0c281c7f5cea..4c1f2ac61f9a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
> @@ -1040,10 +1040,12 @@ void amdgpu_acpi_detect(void)
>   bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev)
>   {
>   #if defined(CONFIG_AMD_PMC) || defined(CONFIG_AMD_PMC_MODULE)
> +#if IS_ENABLED(CONFIG_SUSPEND) && IS_ENABLED(CONFIG_PM_SLEEP)
>   	if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
>   		if (adev->flags & AMD_IS_APU)
>   			return pm_suspend_target_state == PM_SUSPEND_TO_IDLE;
>   	}
> +#endif
>   #endif
>   	return false;
>   }
>