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[PATCH] USB: net2280: add a shutdown routine

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The net2280 board has an annoying habit of surviving soft reboots with
interrupts enabled.  This patch (as674) adds a shutdown routine to the
driver so that the board can be put in a quiescent state.

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 2006-05-05 16:23:42 -04:00 committed by Greg Kroah-Hartman
parent b383539e04
commit 2d61bde7a0
1 changed files with 17 additions and 0 deletions
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17
drivers/usb/gadget/net2280.c
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@ -2966,6 +2966,22 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
return retval;
}
/* make sure the board is quiescent; otherwise it will continue
* generating IRQs across the upcoming reboot.
*/
static void net2280_shutdown (struct pci_dev *pdev)
{
struct net2280 *dev = pci_get_drvdata (pdev);
/* disable IRQs */
writel (0, &dev->regs->pciirqenb0);
writel (0, &dev->regs->pciirqenb1);
/* disable the pullup so the host will think we're gone */
writel (0, &dev->usb->usbctl);
}
/*-------------------------------------------------------------------------*/
@ -2995,6 +3011,7 @@ static struct pci_driver net2280_pci_driver = {
.probe = net2280_probe,
.remove = net2280_remove,
.shutdown = net2280_shutdown,
/* FIXME add power management support */
};