PCI: Export some PCI PM functionality

It's helpful to have some extra PCI power management functions available to
platform code, so move the declarations to an exported header.

Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 30faf4f..7454408 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -819,6 +819,9 @@
 int pci_prepare_to_sleep(struct pci_dev *dev);
 int pci_back_from_sleep(struct pci_dev *dev);
 bool pci_dev_run_wake(struct pci_dev *dev);
+bool pci_check_pme_status(struct pci_dev *dev);
+void pci_wakeup_event(struct pci_dev *dev);
+void pci_pme_wakeup_bus(struct pci_bus *bus);
 
 static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state,
 				  bool enable)