From: Alan Stern <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
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_dri
.probe = net2280_probe,
.remove = net2280_remove,
+ .shutdown = net2280_shutdown,
/* FIXME add power management support */
};
--
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