From: Lucas Stach <dev@lynxeye.de>
Date: Wed, 19 Dec 2012 21:38:54 +0000 (+0000)
Subject: drm: tegra: protect DC register access with mutex
X-Git-Tag: v3.8-rc2~13^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83c0bcb694be31dcd6c04bdd935b96a95a0af548;p=pandora-kernel.git

drm: tegra: protect DC register access with mutex

Window properties are programmed through a shared aperture and have to
happen atomically. Also we do the read-update-write dance on some of the
shared regs.
To make sure that different functions don't stumble over each other
protect the register access with a mutex.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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