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drm/amdgpu: not set cg for vce/uvd in late init.

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no need to set cg for uvd/vce in late init.
As when ring test, uvd/vce's dpm will be enabled/disabled.
the cg will be set.

fix issue suspend when play video or encode, then resume back,
the clock will be bypassed on Polaris/Fiji.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2016-09-13 19:38:38 +08:00 committed by Alex Deucher
parent aa0ef3ccd6
commit d932f37c4a
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -1367,6 +1367,9 @@ static int amdgpu_late_init(struct amdgpu_device *adev)
for (i = 0; i < adev->num_ip_blocks; i++) {
if (!adev->ip_block_status[i].valid)
continue;
if (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_UVD ||
adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_VCE)
continue;
/* enable clockgating to save power */
r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev,
AMD_CG_STATE_GATE);