drm/i915: unify remaining register save/restore code a bit

Use the same conditions, group by features, add comments.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jani Nikula 2014-11-12 17:01:10 +02:00 • committed by Daniel Vetter
commit 1c5bb42ce8