drm/i915: fix VDD state tracking after system resume

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Just like during booting the BIOS can leave the VDD bit enabled after
system resume. So apply the same state sanitization there too. This
fixes a problem where after resume the port power domain refcount gets
unbalanced.

v2:
- unchanged
v3:
- call edp sanitizing from the encoder reset handler (Daniel)

Reported-and-tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Imre Deak 2014-07-31 14:03:36 +03:00 • committed by Daniel Vetter

parent f573de5a84

commit 6d93c0c417

1 changed files with 6 additions and 0 deletions

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drivers/gpu/drm/i915/intel_dp.c

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