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(parent: e01fcd6) | patch
drm/i915: Check eDP power when doing aux channel communications
authorKeith Packard <keithp@keithp.com>
Mon, 19 Sep 2011 20:54:47 +0000 (13:54 -0700)
committerKeith Packard <keithp@keithp.com>
Fri, 30 Sep 2011 23:23:45 +0000 (16:23 -0700)
commit9dfbd945ca4f5da3935752fd4e7881a023eb660e
tree93dc57e7d712dcf1be291b078308894ce01c1bc5tree | snapshot
parente01fcd63f0d7b484484f4efa9c90ad4b8936f001commit | diff
drm/i915: Check eDP power when doing aux channel communications

Verify that the eDP VDD is on, either with the panel being on or with
the VDD force-on bit being set.

This demonstrates that in many instances, VDD is not on when needed,
which leads to failed EDID communications.

Signed-off-by: Keith Packard <keithp@keithp.com>
drivers/gpu/drm/i915/intel_dp.c diff | blob | history
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