From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 15 Sep 2014 12:35:09 +0000 (+0200)
Subject: drm/i915: Convert backlight_lock to a mutex
X-Git-Tag: omap-for-v3.19/fixes-rc1~80^2~79^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07f11d49f120dfffb5b8603dd3863e903d50c456;p=pandora-kernel.git

drm/i915: Convert backlight_lock to a mutex

Originally the irq safe spinlock was required because of asle
interrupts. But since

commit 91a60f20712179e56b7a6c3d332a5f6f9a54aa11
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Thu Oct 31 18:55:48 2013 +0200

    drm/i915: move opregion asle request handling to a work queue

there's no need for this any more. So switch to the simpler mutex.

v2: Cite the right commit, spotted by Jani.

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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