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(parent: 47f0eb2) | 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)
commit9b984daec45632c4c1ef6e628dca4d2bc8f544ed
tree93dc57e7d712dcf1be291b078308894ce01c1bc5tree | snapshot (tar.gz zip)
parent47f0eb2234a2a1c790825393bbaccfadf82463d3commit | 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 | blame | history