From: Zhenyu Wang <zhenyuw@linux.intel.com>
Date: Thu, 1 Apr 2010 05:07:53 +0000 (+0800)
Subject: drm/i915: Add the support of memory self-refresh on Ironlake
X-Git-Tag: v2.6.35-rc1~451^2~91^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f8a85698f5c8a981641ec0bdf9926768786db9d;p=pandora-kernel.git

drm/i915: Add the support of memory self-refresh on Ironlake

Update the self-refresh watermark for display plane/cursor and enable
the memory self-refresh on Ironlake. The watermark is also updated for
the active display plane.

More than 1W idle power is saved on one Ironlake laptop after enabling
memory self-refresh.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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