diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 1ec4ebbb89f3b7a449980988c5312e2332eaec69..1e4062d0961667ad444046c52df9e321fa2bf11c 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -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);