From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 31 Jan 2013 14:01:59 +0000 (-0500)
Subject: drm/radeon/r5xx-r7xx: wait for the MC to settle after MC blackout
X-Git-Tag: v3.8-rc7~23^2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39dc9aabd8708944031e6307819b2a794b841f83;p=pandora-kernel.git

drm/radeon/r5xx-r7xx: wait for the MC to settle after MC blackout

Some chips seem to need a little delay after blacking out
the MC before the requests actually stop. Stop DMAR errors
reported by Shuah Khan.

Reported-by: Shuah Khan <shuahkhan@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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