Commits
Paulo Zanoni committed 81c12f6e78c
drm/i915: POSTING_READ IPS_CTL before waiting for the vblank Make sure we write to IPS before we actually wait. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>