diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 25c4492..d94d7af 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -13,6 +13,7 @@
 				  void *alignf_data);
 /* Firmware callbacks */
 extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
+extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
 
 /* PCI /proc functions */
 #ifdef CONFIG_PROC_FS