USB: move PCI HCD resume routine
authorAlan Stern <stern@rowland.harvard.edu>
Fri, 25 Jun 2010 18:02:03 +0000 (14:02 -0400)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 10 Aug 2010 21:35:37 +0000 (14:35 -0700)
This patch (as1384) moves the resume_common() routine in hcd-pci.c a
little higher in the source file to avoid forward references in an
upcoming patch.  It also replaces the "hibernated" argument with a
more general "event" argument, which will be useful when the routine
is called during a runtime resume.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/core/hcd-pci.c

index 7c3b0af..f0156de 100644 (file)
@@ -403,6 +403,43 @@ static int hcd_pci_suspend(struct device *dev)
        return retval;
 }
 
+static int resume_common(struct device *dev, int event)
+{
+       struct pci_dev          *pci_dev = to_pci_dev(dev);
+       struct usb_hcd          *hcd = pci_get_drvdata(pci_dev);
+       int                     retval;
+
+       if (hcd->state != HC_STATE_SUSPENDED) {
+               dev_dbg(dev, "can't resume, not suspended!\n");
+               return 0;
+       }
+
+       retval = pci_enable_device(pci_dev);
+       if (retval < 0) {
+               dev_err(dev, "can't re-enable after resume, %d!\n", retval);
+               return retval;
+       }
+
+       pci_set_master(pci_dev);
+
+       clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
+
+       if (hcd->driver->pci_resume) {
+               /* This call should be made only during system resume,
+                * not during runtime resume.
+                */
+               wait_for_companions(pci_dev, hcd);
+
+               retval = hcd->driver->pci_resume(hcd,
+                               event == PM_EVENT_RESTORE);
+               if (retval) {
+                       dev_err(dev, "PCI post-resume error %d!\n", retval);
+                       usb_hc_died(hcd);
+               }
+       }
+       return retval;
+}
+
 static int hcd_pci_suspend_noirq(struct device *dev)
 {
        struct pci_dev          *pci_dev = to_pci_dev(dev);
@@ -452,50 +489,14 @@ static int hcd_pci_resume_noirq(struct device *dev)
        return 0;
 }
 
-static int resume_common(struct device *dev, bool hibernated)
-{
-       struct pci_dev          *pci_dev = to_pci_dev(dev);
-       struct usb_hcd          *hcd = pci_get_drvdata(pci_dev);
-       int                     retval;
-
-       if (hcd->state != HC_STATE_SUSPENDED) {
-               dev_dbg(dev, "can't resume, not suspended!\n");
-               return 0;
-       }
-
-       retval = pci_enable_device(pci_dev);
-       if (retval < 0) {
-               dev_err(dev, "can't re-enable after resume, %d!\n", retval);
-               return retval;
-       }
-
-       pci_set_master(pci_dev);
-
-       clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
-
-       if (hcd->driver->pci_resume) {
-               /* This call should be made only during system resume,
-                * not during runtime resume.
-                */
-               wait_for_companions(pci_dev, hcd);
-
-               retval = hcd->driver->pci_resume(hcd, hibernated);
-               if (retval) {
-                       dev_err(dev, "PCI post-resume error %d!\n", retval);
-                       usb_hc_died(hcd);
-               }
-       }
-       return retval;
-}
-
 static int hcd_pci_resume(struct device *dev)
 {
-       return resume_common(dev, false);
+       return resume_common(dev, PM_EVENT_RESUME);
 }
 
 static int hcd_pci_restore(struct device *dev)
 {
-       return resume_common(dev, true);
+       return resume_common(dev, PM_EVENT_RESTORE);
 }
 
 const struct dev_pm_ops usb_hcd_pci_pm_ops = {