Commits
Ben Widawsky committed 23d0b13036d
drm/i915/bdw: Add 42ms delay for IPS disable This is a requirement added to the spec. This patch will prevent persistent corruption on the display. v2: Make the wait before the vblank wait. (Art) Try to finish early by polling the register s/present/prevent (Chris) Cc: Art Runyan <arthur.j.runyan@intel.com> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> [danvet: Upgrade debug output to ERROR.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>