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drm/i915: Save/restore HWS_PGA on suspend/resume
authorPeng Li <peng.li@intel.com>
Tue, 18 Nov 2008 04:39:02 +0000 (12:39 +0800)
committerDave Airlie <airlied@redhat.com>
Wed, 26 Nov 2008 05:47:25 +0000 (15:47 +1000)
It fixes suspend/resume failure of xf86-video-intel dri2
branch. As dri2 branch doesn't call I830DRIResume() to restore
hardware status page anymore, we need to preserve
this register across suspend/resume.

Signed-off-by: Peng Li <peng.li@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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