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(parent: 12bc4b9) | 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)
commitd260f9d0bb3538e79b9e64bf4dc3496836022957
tree3ae3183d2ac3f9816d501afd80e06fbd34d2c683tree | snapshot
parent12bc4b93d63dcdc1486f1f2956d9e927536420b0commit | 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 | history
drivers/gpu/drm/i915/intel_display.c diff | blob | history
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