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

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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>

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Imre Deak 2014-03-04 19:23:06 +02:00 • committed by Daniel Vetter

parent dd7c0b66e5

commit 25eaa003bd

1 changed files with 35 additions and 3 deletions

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38

drivers/gpu/drm/i915/intel_pm.c

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