tree 3ae3183d2ac3f9816d501afd80e06fbd34d2c683
parent d4294342fd4b94a3297867da00c1c5e929c28d4f
author Zhenyu Wang <zhenyuw@linux.intel.com> 1270098473 +0800
committer Eric Anholt <eric@anholt.net> 1271089843 -0700

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>