diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2018-03-12 19:50:38 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-03-15 09:57:32 -0500 |
| commit | 5771632723aea8a7c994846b084bdb44000f82e6 (patch) | |
| tree | 128ea55615d94b84b596f61925653702b57b4414 | |
| parent | 8e68627958f2fe9cf2f106656e007b8d3cd7cc47 (diff) | |
| download | linux-5771632723aea8a7c994846b084bdb44000f82e6.tar.bz2 | |
drm/amdgpu: Plus NULL function pointer check
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 7d7d30b8a719..a3e81e36a7ee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1417,7 +1417,8 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev) continue; /* skip CG for VCE/UVD, it's handled specially */ if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD && - adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE) { + adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE && + adev->ip_blocks[i].version->funcs->set_clockgating_state) { /* enable clockgating to save power */ r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_GATE); @@ -1466,7 +1467,8 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev) for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.hw) continue; - if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) { + if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC && + adev->ip_blocks[i].version->funcs->set_clockgating_state) { /* ungate blocks before hw fini so that we can shutdown the blocks safely */ r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_UNGATE); @@ -1578,7 +1580,8 @@ int amdgpu_device_ip_suspend(struct amdgpu_device *adev) if (!adev->ip_blocks[i].status.valid) continue; /* ungate blocks so that suspend can properly shut them down */ - if (i != AMD_IP_BLOCK_TYPE_SMC) { + if (i != AMD_IP_BLOCK_TYPE_SMC && + adev->ip_blocks[i].version->funcs->set_clockgating_state) { r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_UNGATE); if (r) { |