[PATCH] USB UHCI: Add shutdown method
After all the discussion you might not be interested in this still, but nevertheless here it is. This patch adds a shutdown method to the uhci-hcd driver. Its prerequisite is the patch you wrote adding shutdown support for PCI. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -154,6 +154,7 @@ static void reset_hc(struct uhci_hcd *uhci)
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/*
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* Last rites for a defunct/nonfunctional controller
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* or one we don't want to use any more.
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*/
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static void hc_died(struct uhci_hcd *uhci)
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{
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@ -525,6 +526,20 @@ static int uhci_reset(struct usb_hcd *hcd)
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return 0;
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}
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/* Make sure the controller is quiescent and that we're not using it
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* any more. This is mainly for the benefit of programs which, like kexec,
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* expect the hardware to be idle: not doing DMA or generating IRQs.
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*
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* This routine may be called in a damaged or failing kernel. Hence we
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* do not acquire the spinlock before shutting down the controller.
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*/
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static void uhci_shutdown(struct pci_dev *pdev)
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{
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struct usb_hcd *hcd = (struct usb_hcd *) pci_get_drvdata(pdev);
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hc_died(hcd_to_uhci(hcd));
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}
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/*
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* Allocate a frame list, and then setup the skeleton
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*
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@ -939,6 +954,7 @@ static struct pci_driver uhci_pci_driver = {
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.probe = usb_hcd_pci_probe,
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.remove = usb_hcd_pci_remove,
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.shutdown = uhci_shutdown,
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#ifdef CONFIG_PM
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.suspend = usb_hcd_pci_suspend,
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