References: https://bugs.freedesktop.org/show_bug.cgi?id=50250Reviewed-by: NBen Widawsky <ben@bwidawsk.net>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: NAntti Koskipää <antti.koskipaa@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>