1 files changed, 15 insertions, 0 deletions

diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index ec11d44eaeb5..0afee17f33b4 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -17,6 +17,7 @@
  */
 #include <linux/types.h>
 #include <linux/proc_fs.h>
+#include <linux/platform_device.h>
 #include <asm/atomic.h>
 
 /* Definitions used by the flattened device tree */
@@ -333,6 +334,20 @@ extern int of_irq_map_one(struct device_node *device, int index,
 struct pci_dev;
 extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
 
+static inline int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
+{
+        int irq = irq_of_parse_and_map(dev, index);
+
+        /* Only dereference the resource if both the
+         * resource and the irq are valid. */
+        if (r && irq != NO_IRQ) {
+                r->start = r->end = irq;
+                r->flags = IORESOURCE_IRQ;
+        }
+
+        return irq;
+}
+
 
 #endif /* __KERNEL__ */
 #endif /* _POWERPC_PROM_H */