drm/i915: Eliminate loop from VLV irq handler
Now that we've dealt with the races in clearing IIR bits via VLV_IER and the master interrupt enable, we can go ahead aliminate the loop from the VLV interrupt handler. Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1460571598-24452-7-git-send-email-ville.syrjala@linux.intel.comReviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
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