From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 29 Nov 2010 18:00:23 +0000 (+0000)
Subject: drm/i915: Clear pfit registers when not used by any outputs
X-Git-Tag: v2.6.37-rc5~39^2~3^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5d1b51d3559664920136b45f4d2366ed9a9e8be;p=pandora-kernel.git

drm/i915: Clear pfit registers when not used by any outputs

... otherwise the panel-fitter may be left enabled with random settings
and cause unintended filtering (i.e. blurring of native modes on external
panels).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31942
Reported-and-tested-by: Ben Kohler <bkohler@gmail.com>
Tested-by: Ciprian Docan <docan@eden.rutgers.edu>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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