linux-kernel - [PATCH 5.11 27/44] drm/amdgpu: Only check for S0ix if AMD

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Message-Id: <20210308122719.904210982@linuxfoundation.org>
Date:   Mon,  8 Mar 2021 13:35:05 +0100
From:   gregkh@...uxfoundation.org
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Prike Liang <Prike.Liang@....com>,
        Rajneesh Bhardwaj <rajneesh.bhardwaj@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 5.11 27/44] drm/amdgpu: Only check for S0ix if AMD_PMC is configured

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

From: Alex Deucher <alexander.deucher@....com>

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@....com>
Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- 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_devi
  */
 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;
 }