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[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>
This commit is contained in:
Alan Stern 2005-04-28 14:51:27 -04:00 committed by Greg Kroah-Hartman
parent c074b416b9
commit 02597d2dee
1 changed files with 16 additions and 0 deletions
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16
drivers/usb/host/uhci-hcd.c
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@ -154,6 +154,7 @@ static void reset_hc(struct uhci_hcd *uhci)
/*
* Last rites for a defunct/nonfunctional controller
* or one we don't want to use any more.
*/
static void hc_died(struct uhci_hcd *uhci)
{
@ -525,6 +526,20 @@ static int uhci_reset(struct usb_hcd *hcd)
return 0;
}
/* Make sure the controller is quiescent and that we're not using it
* any more. This is mainly for the benefit of programs which, like kexec,
* expect the hardware to be idle: not doing DMA or generating IRQs.
*
* This routine may be called in a damaged or failing kernel. Hence we
* do not acquire the spinlock before shutting down the controller.
*/
static void uhci_shutdown(struct pci_dev *pdev)
{
struct usb_hcd *hcd = (struct usb_hcd *) pci_get_drvdata(pdev);
hc_died(hcd_to_uhci(hcd));
}
/*
* Allocate a frame list, and then setup the skeleton
*
@ -939,6 +954,7 @@ static struct pci_driver uhci_pci_driver = {
.probe = usb_hcd_pci_probe,
.remove = usb_hcd_pci_remove,
.shutdown = uhci_shutdown,
#ifdef CONFIG_PM
.suspend = usb_hcd_pci_suspend,