drm/i915: Enforce going back to none before changing CRC source

This way we can have some init/fini code on those transitions.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau 2013-10-15 18:55:32 +01:00 • committed by Daniel Vetter
commit ae676fcd2a