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authorAlex Deucher2015-07-14 12:26:41 -0400
committerAlex Deucher2015-07-16 12:39:41 -0400
commit85cfe096552b7792032105dbcedeab019ac4c26e (patch)
treef5bd336cd8b7800f4e581de1f386cfd2d3a98ebb /drivers/gpu
parent4f2d3ad6863ad5bc361c704511cd8888723085e8 (diff)
drm/amdgpu/cz: unforce dpm levels before forcing to low/high
This is necessary to properly reset the min/max limits before clamping them otherwise we may get improper clamping depending on what what was the last forced level. Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/cz_dpm.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
index f75a31df30bd..8d95547f263a 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c
@@ -1687,17 +1687,23 @@ static int cz_dpm_unforce_dpm_levels(struct amdgpu_device *adev)
}
static int cz_dpm_force_dpm_level(struct amdgpu_device *adev,
- enum amdgpu_dpm_forced_level level)
+ enum amdgpu_dpm_forced_level level)
{
int ret = 0;
switch (level) {
case AMDGPU_DPM_FORCED_LEVEL_HIGH:
+ ret = cz_dpm_unforce_dpm_levels(adev);
+ if (ret)
+ return ret;
ret = cz_dpm_force_highest(adev);
if (ret)
return ret;
break;
case AMDGPU_DPM_FORCED_LEVEL_LOW:
+ ret = cz_dpm_unforce_dpm_levels(adev);
+ if (ret)
+ return ret;
ret = cz_dpm_force_lowest(adev);
if (ret)
return ret;