drm/i915: take mode config lock around crtc disable at suspend
authorJesse Barnes <jbarnes@virtuousgeek.org>
Tue, 26 Nov 2013 17:13:41 +0000 (09:13 -0800)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 26 Nov 2013 18:09:14 +0000 (19:09 +0100)
commit7c063c725987406d743cc7de7625ff224fab75de
tree03ae26f0d0fef983907df6df228cea4faa77a254
parentc51e9701c4ad68d87baecefad6c58d051574f848
drm/i915: take mode config lock around crtc disable at suspend

This is just a theoretical issue, but we need to do this to prevent the
WARN in pipe_from_connector at suspend time.

This regression has been introduce in

commit 7bd688cd66db93f6430f6e2b3145ee5686daa315
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Fri Nov 8 16:48:56 2013 +0200

    drm/i915: handle backlight through chip specific functions

https://bugs.freedesktop.org/show_bug.cgi?id=71978
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/i915_drv.c