tree 5acadb0d3ddc2ceb2b42a7be293c0b92894a2253
parent dd7c0b66e5414c54a9af8f100cc904240bab5102
author Imre Deak <imre.deak@intel.com> 1393953786 +0200
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1394228216 +0100

drm/i915: sanity check power well sw state against hw state

Suggested by Daniel.

v2:
- sanitize the state checking condition, the original was rather
  confusing (partly due to the unfortunate naming of
  i915.disable_power_well) (Ville)
- simpler message+backtrace generation by using WARN instead of WARN_ON
  (Ville)
- check if always-on power wells are truly on all the time

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>