From: Ville Syrjälä ville.syrjala@linux.intel.com
Some lower level things get angry if we don't have modeset locks during intel_modeset_setup_hw_state(). Actually the resume and lid_notify codepaths alreday hold the locks, but the init codepath doesn't, so fix that.
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- Totally untested, but looks correct to me.
drivers/gpu/drm/i915/intel_display.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 080f6fd..114db51 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11046,7 +11046,9 @@ void intel_modeset_gem_init(struct drm_device *dev)
intel_setup_overlay(dev);
+ drm_modeset_lock_all(dev); intel_modeset_setup_hw_state(dev, false); + drm_modeset_unlock_all(dev); }
void intel_modeset_cleanup(struct drm_device *dev)