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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-05-05 16:23:42 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 15:04:10 -0700 |
| commit | 2d61bde7a0e630e1906e6478b6b2a7aeaaa8f8da (patch) | |
| tree | b52f1ed6ea51a5503ef859e2ae3d4eaa16ee4b05 /drivers/usb/gadget/net2280.c | |
| parent | b383539e04c413e040d998aedcc120c49aa670da (diff) | |
| download | op-kernel-dev-2d61bde7a0e630e1906e6478b6b2a7aeaaa8f8da.zip op-kernel-dev-2d61bde7a0e630e1906e6478b6b2a7aeaaa8f8da.tar.gz | |
[PATCH] USB: net2280: add a shutdown routine
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>
Diffstat (limited to 'drivers/usb/gadget/net2280.c')
| -rw-r--r-- | drivers/usb/gadget/net2280.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 020d3c4..1facdea 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -2966,6 +2966,22 @@ done: 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 */ }; |
