diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 0887581..1a630ab 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -256,10 +256,15 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 	int ret = IRQ_NONE;
-	u32 de_iir, gt_iir;
+	u32 de_iir, gt_iir, de_ier;
 	u32 new_de_iir, new_gt_iir;
 	struct drm_i915_master_private *master_priv;
 
+	/* disable master interrupt before clearing iir  */
+	de_ier = I915_READ(DEIER);
+	I915_WRITE(DEIER, de_ier & ~DE_MASTER_IRQ_CONTROL);
+	(void)I915_READ(DEIER);
+
 	de_iir = I915_READ(DEIIR);
 	gt_iir = I915_READ(GTIIR);
 
@@ -292,6 +297,9 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev)
 		gt_iir = new_gt_iir;
 	}
 
+	I915_WRITE(DEIER, de_ier);
+	(void)I915_READ(DEIER);
+
 	return ret;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 381cd88..1e0d510 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -881,12 +881,12 @@
 
 
 #define PORT_HOTPLUG_STAT	0x61114
-#define   HDMIB_HOTPLUG_INT_STATUS		(1 << 29)
-#define   DPB_HOTPLUG_INT_STATUS		(1 << 29)
-#define   HDMIC_HOTPLUG_INT_STATUS		(1 << 28)
-#define   DPC_HOTPLUG_INT_STATUS		(1 << 28)
-#define   HDMID_HOTPLUG_INT_STATUS		(1 << 27)
-#define   DPD_HOTPLUG_INT_STATUS		(1 << 27)
+#define   HDMIB_HOTPLUG_INT_STATUS		(3 << 21)
+#define   DPB_HOTPLUG_INT_STATUS		(3 << 21)
+#define   HDMIC_HOTPLUG_INT_STATUS		(3 << 19)
+#define   DPC_HOTPLUG_INT_STATUS		(3 << 19)
+#define   HDMID_HOTPLUG_INT_STATUS		(3 << 17)
+#define   DPD_HOTPLUG_INT_STATUS		(3 << 17)
 #define   CRT_EOS_INT_STATUS			(1 << 12)
 #define   CRT_HOTPLUG_INT_STATUS		(1 << 11)
 #define   TV_HOTPLUG_INT_STATUS			(1 << 10)