drm/i915: Fix HSW power well control state read
authorZhenyu Wang <zhenyuw@linux.intel.com>
Tue, 30 Oct 2012 11:16:34 +0000 (19:16 +0800)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Sun, 11 Nov 2012 22:51:04 +0000 (23:51 +0100)
Fix power well control state by reading real register offset.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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