From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 31 Jan 2013 14:00:52 +0000 (-0500)
Subject: drm/radeon/evergreen+: wait for the MC to settle after MC blackout
X-Git-Tag: v3.8-rc7~23^2^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed39fadd6df01095378e499fac3674883f16b853;p=pandora-kernel.git

drm/radeon/evergreen+: 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.

May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=56139
https://bugs.freedesktop.org/show_bug.cgi?id=57567

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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