From 057c58bfb1dc9bbb75b8ba3b6c6336cfca63b9d0 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 25 Jun 2010 14:02:03 -0400 Subject: [PATCH] USB: move PCI HCD resume routine 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 Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hcd-pci.c | 77 +++++++++++++++++++++++----------------------- 1 file changed, 39 insertions(+), 38 deletions(-) diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 7c3b0af..f0156de 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -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 = { -- 2.7.4