From: Li Peng <peng.li@linux.intel.com>
Date: Sat, 12 Jun 2010 15:38:35 +0000 (+0800)
Subject: drm/i915: Turn on 945 self-refresh only if single CRTC is active
X-Git-Tag: v2.6.35-rc4~10^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45ac22c81b1088f5ac08dc5367f78c192d68d756;p=pandora-kernel.git

drm/i915: Turn on 945 self-refresh only if single CRTC is active

Enable self-refresh on 945 when just one CRTC is activated.
Otherwise user would get display flicker with dual display.

This fixes https://bugs.freedesktop.org/show_bug.cgi?id=27667

Signed-off-by: Li Peng <peng.li@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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