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

commit 31ada99bdd1b4d6b80462eeb87d383f374409e2a upstream.

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.

Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 8155c54392c885a96f93cb7bf789a266fe08bb38..36a741d63ddcf602ca408e025b7b198b43157d2a 100644 (file)
--- 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;
 }