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drm/radeon/dpm: add a late enable callback

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Certain features need to be enabled after ring tests
(e.g., powergating, etc.).  Add a function pointer
to split out late enable features.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-12-19 11:37:22 -05:00
commit 914a89872b
2 changed files with 15 additions and 0 deletions
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12
drivers/gpu/drm/radeon/radeon_pm.c
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@ -1288,6 +1288,18 @@ int radeon_pm_init(struct radeon_device *rdev)
return radeon_pm_init_old(rdev);
}
int radeon_pm_late_init(struct radeon_device *rdev)
{
int ret = 0;
if (rdev->pm.pm_method == PM_METHOD_DPM) {
mutex_lock(&rdev->pm.mutex);
ret = radeon_dpm_late_enable(rdev);
mutex_unlock(&rdev->pm.mutex);
}
return ret;
}
static void radeon_pm_fini_old(struct radeon_device *rdev)
{
if (rdev->pm.num_power_states > 1) {