drm/i915: resume MST after reading back hw state

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Otherwise the MST resume paths can hit DPMS paths
which hit state checker paths, which hit WARN_ON,
because the state checker is inconsistent with the
hw.

This fixes a bunch of WARN_ON's on resume after
undocking.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

...

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Dave Airlie 2014-12-08 13:23:37 +10:00 • committed by Jani Nikula

parent 9cca306880

commit e7d6f7d708

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/i915/i915_drv.c

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