[ACPI] PCI can now get suspend state from firmware
pci_choose_state() can now call
platform_pci_choose_state()
and ACPI can answer
http://bugzilla.kernel.org/show_bug.cgi?id=4277
Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 744da0d..25c4492 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -11,6 +11,9 @@
void (*alignf)(void *, struct resource *,
unsigned long, unsigned long),
void *alignf_data);
+/* Firmware callbacks */
+extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
+
/* PCI /proc functions */
#ifdef CONFIG_PROC_FS
extern int pci_proc_attach_device(struct pci_dev *dev);