From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 13 Apr 2011 08:28:23 +0000 (+0100)
Subject: drm/i915: Initialise g4x watermarks for disabled pipes
X-Git-Tag: v2.6.39-rc5~30^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c72d064f7ead1126bed6faab0c2bfb7418036e2;p=pandora-kernel.git

drm/i915: Initialise g4x watermarks for disabled pipes

We were using uninitialised watermarks values for disabled pipes which
were combined into a single WM register and so corrupting the values for
the enabled pipe and upsetting the display hardware.

Reported-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=32612
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
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