drm/i915/hsw, bdw: Remove redundant state check during power well toggling
Similarly to the GEN9 power well toggling, saving an occasional extra MMIO write is not worth the code complexity, let's simplify things. Signed-off-by: NImre Deak <imre.deak@intel.com> Reviewed-by: NArkadiusz Hiler <arkadiusz.hiler@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1499352040-8819-11-git-send-email-imre.deak@intel.comSigned-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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