Suspend changes for PCI core

Changes the PCI core to use the new suspend infrastructure changes.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 43 insertions, 1 deletions

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 474e9cd0e9e4..9e7d6ceb3805 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -264,6 +264,19 @@ static int pci_device_remove(struct device * dev)
         return 0;
 }
 
+static int pci_device_suspend_prepare(struct device * dev, pm_message_t state)
+{
+        struct pci_dev * pci_dev = to_pci_dev(dev);
+        struct pci_driver * drv = pci_dev->driver;
+        int i = 0;
+
+        if (drv && drv->suspend_prepare) {
+                i = drv->suspend_prepare(pci_dev, state);
+                suspend_report_result(drv->suspend_prepare, i);
+        }
+        return i;
+}
+
 static int pci_device_suspend(struct device * dev, pm_message_t state)
 {
         struct pci_dev * pci_dev = to_pci_dev(dev);
@@ -279,6 +292,18 @@ static int pci_device_suspend(struct device * dev, pm_message_t state)
         return i;
 }
 
+static int pci_device_suspend_late(struct device * dev, pm_message_t state)
+{
+        struct pci_dev * pci_dev = to_pci_dev(dev);
+        struct pci_driver * drv = pci_dev->driver;
+        int i = 0;
+
+        if (drv && drv->suspend_late) {
+                i = drv->suspend_late(pci_dev, state);
+                suspend_report_result(drv->suspend_late, i);
+        }
+        return i;
+}
 
 /*
  * Default resume method for devices that have no driver provided resume,
@@ -313,6 +338,17 @@ static int pci_device_resume(struct device * dev)
         return error;
 }
 
+static int pci_device_resume_early(struct device * dev)
+{
+        int error = 0;
+        struct pci_dev * pci_dev = to_pci_dev(dev);
+        struct pci_driver * drv = pci_dev->driver;
+
+        if (drv && drv->resume_early)
+                error = drv->resume_early(pci_dev);
+        return error;
+}
+
 static void pci_device_shutdown(struct device *dev)
 {
         struct pci_dev *pci_dev = to_pci_dev(dev);
@@ -508,9 +544,12 @@ struct bus_type pci_bus_type = {
         .uevent         = pci_uevent,
         .probe          = pci_device_probe,
         .remove         = pci_device_remove,
+        .suspend_prepare= pci_device_suspend_prepare,
         .suspend        = pci_device_suspend,
-        .shutdown       = pci_device_shutdown,
+        .suspend_late   = pci_device_suspend_late,
+        .resume_early   = pci_device_resume_early,
         .resume         = pci_device_resume,
+        .shutdown       = pci_device_shutdown,
         .dev_attrs      = pci_dev_attrs,
 };
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 8565b81d7fbc..4b2e629467c7 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -345,7 +345,10 @@ struct pci_driver {
         const struct pci_device_id *id_table;   /* must be non-NULL for probe to be called */
         int  (*probe)  (struct pci_dev *dev, const struct pci_device_id *id);   /* New device inserted */
         void (*remove) (struct pci_dev *dev);   /* Device removed (NULL if not a hot-plug capable driver) */
+        int  (*suspend_prepare) (struct pci_dev *dev, pm_message_t state);
         int  (*suspend) (struct pci_dev *dev, pm_message_t state);      /* Device suspended */
+        int  (*suspend_late) (struct pci_dev *dev, pm_message_t state);
+        int  (*resume_early) (struct pci_dev *dev);
         int  (*resume) (struct pci_dev *dev);                   /* Device woken up */
         int  (*enable_wake) (struct pci_dev *dev, pci_power_t state, int enable);   /* Enable wake event */
         void (*shutdown) (struct pci_dev *dev);