Commits
Chris Wilson committed e7e164db6db
drm/i915: Assert that the transcoder is indeed off before modifying it Inspired by a recent regression that seems to confuse pch transcoder state, let's be a bit more paranoid. References: https://bugs.freedesktop.org/show_bug.cgi?id=49712 Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> [danvet: Pimped commit message.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>