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(parent: d429434) | patch
drm/i915: Add the support of memory self-refresh on Ironlake
authorZhenyu Wang <zhenyuw@linux.intel.com>
Thu, 1 Apr 2010 05:07:53 +0000 (13:07 +0800)
committerEric Anholt <eric@anholt.net>
Mon, 12 Apr 2010 16:30:43 +0000 (09:30 -0700)
commit7f8a85698f5c8a981641ec0bdf9926768786db9d
tree3ae3183d2ac3f9816d501afd80e06fbd34d2c683tree | snapshot (tar.gz zip)
parentd4294342fd4b94a3297867da00c1c5e929c28d4fcommit | diff
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>
drivers/gpu/drm/i915/i915_reg.h diff | blob | blame | history
drivers/gpu/drm/i915/intel_display.c diff | blob | blame | history