commit 06891e27a9b5dba5268bb80e41a283f51335afe7
author Jesse Barnes <jbarnes@virtuousgeek.org> Mon Sep 14 10:58:48 2009 -0700
committer Jesse Barnes <jbarnes@virtuousgeek.org> Thu Sep 17 14:42:54 2009 -0700
tree 252e7a4a096249c1b3db037c27631290bcfa7e8f
parent ba1234d17b3b1fe7087defb191a3c705f208aca6

drm/i915: fix suspend/resume breakage in lid notifier

We now unconditionally restore the mode at lid open time since some
platforms turn off the panel, pipes or other display elements when the
lid is closed.  There's a problem with doing this at resume time
however.

At resume time, we'll get a lid event, but restoring the mode at that
time may not be safe (e.g. if we get the lid event before global state
has been restored), so check the suspended state and make sure our
restore is locked against other mode updates.

Tested-by: Ben Gamari <bgamari.foss@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>