[PATCH] drm/amdgpu: Don't warn for unsupported set_xgmi_plpd_mode

[Tao Zhou]

set_xgmi_plpd_mode may be unsupported and this isn't error, no need to
print warning for it.

Suggested-by: lijo.la...@amd.com
Signed-off-by: Tao Zhou <tao.zh...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index 0533f873001b..c9b09bddbcdc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -1138,7 +1138,8 @@ static int amdgpu_ras_error_inject_xgmi(struct 
amdgpu_device *adev,
        if (amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
                dev_warn(adev->dev, "Failed to disallow df cstate");
 
-       if (amdgpu_dpm_set_xgmi_plpd_mode(adev, XGMI_PLPD_DISALLOW))
+       ret = amdgpu_dpm_set_xgmi_plpd_mode(adev, XGMI_PLPD_DISALLOW);
+       if (ret && ret != -EOPNOTSUPP)
                dev_warn(adev->dev, "Failed to disallow XGMI power down");
 
        ret = psp_ras_trigger_error(&adev->psp, block_info, instance_mask);
@@ -1146,7 +1147,8 @@ static int amdgpu_ras_error_inject_xgmi(struct 
amdgpu_device *adev,
        if (amdgpu_ras_intr_triggered())
                return ret;
 
-       if (amdgpu_dpm_set_xgmi_plpd_mode(adev, XGMI_PLPD_DEFAULT))
+       ret = amdgpu_dpm_set_xgmi_plpd_mode(adev, XGMI_PLPD_DEFAULT);
+       if (ret && ret != -EOPNOTSUPP)
                dev_warn(adev->dev, "Failed to allow XGMI power down");
 
        if (amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_ALLOW))
-- 
2.35.1