diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 5f12eb2d0fb5..e64c75727702 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1101,6 +1101,8 @@ static void ironlake_panel_vdd_off_sync(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dev->dev_private; u32 pp; + WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); + if (!intel_dp->want_panel_vdd && ironlake_edp_have_panel_vdd(intel_dp)) { pp = ironlake_get_pp_control(dev_priv); pp &= ~EDP_FORCE_VDD; |