drm/i915: add panel reset workaround
authorJesse Barnes <jbarnes@virtuousgeek.org>
Wed, 11 Aug 2010 17:04:43 +0000 (10:04 -0700)
committerJesse Barnes <jbarnes@virtuousgeek.org>
Wed, 18 Aug 2010 19:57:21 +0000 (12:57 -0700)
commit37c6c9b0e941fbb7f37a93d36abaf5fcafea87a8
treee79d565e39575a526cb6714ce1287e8a1fb203f7
parentce17178094f368d9e3f39b2cb4303da5ed633dd4
drm/i915: add panel reset workaround

Ironlake requires that we clear the reset panel bit during power
sequences and restore it afterwards.  Uncondtionally add code to do that
since it should be harmless on SNB+.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
drivers/gpu/drm/i915/intel_dp.c