[Intel-gfx] [PATCH] drm/i915: Remove unrequired POSTING_READ from gen6_set_rps()

[Szwichtenberg, Radoslaw]

On Fri, 2017-02-17 at 08:31 +0000, Chris Wilson wrote:
> The uncached mmio is sufficient to queue the mmio writes without raising
> forcewake. The forced flush along with acquiring forcewake from the
> posting read is not required for adjusting the RPS frequency.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg at intel.com>