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I don't think this is necessary; at least it doesn't appear to be on my BYT. Dropping it speeds up our shutdown code a little, in some cases resulting in faster init times. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>