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usb: gadget: pxa25x_udc: use udc-core's reset notifier

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Replace usb_gadget_driver's disconnect with udc-core's reset notifier at
bus reset handler.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Peter Chen 2014-11-06 14:27:59 +08:00 committed by Felipe Balbi
parent afbe47758a
commit 90834d3ecb
1 changed files with 28 additions and 1 deletions
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29
drivers/usb/gadget/udc/pxa25x_udc.c
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@ -1283,6 +1283,33 @@ bind_fail:
return retval;
}
static void
reset_gadget(struct pxa25x_udc *dev, struct usb_gadget_driver *driver)
{
int i;
/* don't disconnect drivers more than once */
if (dev->gadget.speed == USB_SPEED_UNKNOWN)
driver = NULL;
dev->gadget.speed = USB_SPEED_UNKNOWN;
/* prevent new request submissions, kill any outstanding requests */
for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) {
struct pxa25x_ep *ep = &dev->ep[i];
ep->stopped = 1;
nuke(ep, -ESHUTDOWN);
}
del_timer_sync(&dev->timer);
/* report reset; the driver is already quiesced */
if (driver)
usb_gadget_udc_reset(&dev->gadget, driver);
/* re-init driver-visible data structures */
udc_reinit(dev);
}
static void
stop_activity(struct pxa25x_udc *dev, struct usb_gadget_driver *driver)
{
@ -1721,7 +1748,7 @@ pxa25x_udc_irq(int irq, void *_dev)
/* reset driver and endpoints,
* in case that's not yet done
*/
stop_activity (dev, dev->driver);
reset_gadget(dev, dev->driver);
} else {
DBG(DBG_VERBOSE, "USB reset end\n");