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drm/radeon: disable force performance state when thermal state is active

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If the thermal state is active, we are in the lowest performance level
to cool down the chip.  Don't let the user force it higher.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-10-23 17:22:29 -04:00
parent ab70b1dde7
commit 0a17af373c
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/radeon/radeon_pm.c
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@ -508,17 +508,21 @@ static ssize_t radeon_set_dpm_forced_performance_level(struct device *dev,
} else if (strncmp("auto", buf, strlen("auto")) == 0) {
level = RADEON_DPM_FORCED_LEVEL_AUTO;
} else {
mutex_unlock(&rdev->pm.mutex);
count = -EINVAL;
goto fail;
}
if (rdev->asic->dpm.force_performance_level) {
if (rdev->pm.dpm.thermal_active) {
count = -EINVAL;
goto fail;
}
ret = radeon_dpm_force_performance_level(rdev, level);
if (ret)
count = -EINVAL;
}
mutex_unlock(&rdev->pm.mutex);
fail:
mutex_unlock(&rdev->pm.mutex);
return count;
}