diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index d884929..4bcbd58 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -74,6 +74,7 @@
  */
 extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
 extern struct device_node *of_irq_find_parent(struct device_node *child);
+extern void of_msi_configure(struct device *dev, struct device_node *np);
 
 #else /* !CONFIG_OF */
 static inline unsigned int irq_of_parse_and_map(struct device_node *dev,