[PATCH Review 1/1] drm/amdgpu/pm: add asic smu support check

[Stanley.Yang]

It must check asic whether support smu
before call smu powerplay function, otherwise
it may cause null point on no support smu asic.

Change-Id: Ib86f3d4c88317b23eb1040b9ce1c5c8dcae42488
Signed-off-by: Stanley.Yang <Stanley.Yang at amd.com>
---
 drivers/gpu/drm/amd/pm/amdgpu_dpm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 89fbee568be4..c73fb73e9628 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -500,6 +500,9 @@ int amdgpu_dpm_send_hbm_bad_pages_num(struct amdgpu_device *adev, uint32_t size)
 	struct smu_context *smu = adev->powerplay.pp_handle;
 	int ret = 0;
 
+	if (!is_support_sw_smu(adev))
+		return -EOPNOTSUPP;
+
 	mutex_lock(&adev->pm.mutex);
 	ret = smu_send_hbm_bad_pages_num(smu, size);
 	mutex_unlock(&adev->pm.mutex);
@@ -512,6 +515,9 @@ int amdgpu_dpm_send_hbm_bad_channel_flag(struct amdgpu_device *adev, uint32_t si
 	struct smu_context *smu = adev->powerplay.pp_handle;
 	int ret = 0;
 
+	if (!is_support_sw_smu(adev))
+		return -EOPNOTSUPP;
+
 	mutex_lock(&adev->pm.mutex);
 	ret = smu_send_hbm_bad_channel_flag(smu, size);
 	mutex_unlock(&adev->pm.mutex);
-- 
2.17.1