drm/i915: POSTING_READ the new rps value
authorBen Widawsky <ben@bwidawsk.net>
Sat, 8 Sep 2012 02:43:41 +0000 (19:43 -0700)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 20 Sep 2012 12:23:01 +0000 (14:23 +0200)
commitd5570a72439b2d972c915208266440c2f330d03d
tree31de414d953ca4eebd6cc392c41e23c18d9cb848
parentdf6eedc81d43c2245885c6baeb28d488c8a4dea4
drm/i915: POSTING_READ the new rps value

In order to keep our cached values in sync with the hardware, we need a
posting read here.

CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c