Commit 8e20599a authored Oct 30, 2014 by Ville Syrjälä Committed by Daniel Vetter Nov 07, 2014

drm/i915: Drop the extra GEN8_PCU_IIR posting read from cherryview_irq_preinstall()



Looks like a leftover POSTING_READ(GEN8_PCU_IIR) in
cherryview_irq_preinstall() from some earlier age. GEN5_IRQ_RESET()
already does the posting read so this changes nothing, so kill it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent a2c30fba

drivers/gpu/drm/i915/i915_irq.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -3188,8 +3188,6 @@ static void cherryview_irq_preinstall(struct drm_device *dev)

		GEN5_IRQ_RESET(GEN8_PCU_);

		POSTING_READ(GEN8_PCU_IIR);

		I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK_CHV);

		I915_WRITE(PORT_HOTPLUG_EN, 0);

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