Chris Wilson e7e164db6d 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>
2012-05-19 22:39:52 +02:00
..
2012-04-24 09:50:21 +01:00