1 files changed, 26 insertions, 51 deletions

diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index 2b3b01d5f403..2fc867652ef5 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1671,9 +1671,10 @@ static int pxa_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
 	return -EOPNOTSUPP;
 }
 
-static int pxa27x_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
-static int pxa27x_udc_stop(struct usb_gadget_driver *driver);
+static int pxa27x_udc_start(struct usb_gadget *g,
+		struct usb_gadget_driver *driver);
+static int pxa27x_udc_stop(struct usb_gadget *g,
+		struct usb_gadget_driver *driver);
 
 static const struct usb_gadget_ops pxa_udc_ops = {
 	.get_frame	= pxa_udc_get_frame,
@@ -1681,8 +1682,8 @@ static const struct usb_gadget_ops pxa_udc_ops = {
 	.pullup		= pxa_udc_pullup,
 	.vbus_session	= pxa_udc_vbus_session,
 	.vbus_draw	= pxa_udc_vbus_draw,
-	.start		= pxa27x_udc_start,
-	.stop		= pxa27x_udc_stop,
+	.udc_start	= pxa27x_udc_start,
+	.udc_stop	= pxa27x_udc_stop,
 };
 
 /**
@@ -1802,45 +1803,23 @@ static void udc_enable(struct pxa_udc *udc)
  *
  * Returns 0 if no error, -EINVAL, -ENODEV, -EBUSY otherwise
  */
-static int pxa27x_udc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
+static int pxa27x_udc_start(struct usb_gadget *g,
+		struct usb_gadget_driver *driver)
 {
-	struct pxa_udc *udc = the_controller;
+	struct pxa_udc *udc = to_pxa(g);
 	int retval;
 
-	if (!driver || driver->max_speed < USB_SPEED_FULL || !bind
-			|| !driver->disconnect || !driver->setup)
-		return -EINVAL;
-	if (!udc)
-		return -ENODEV;
-	if (udc->driver)
-		return -EBUSY;
-
 	/* first hook up the driver ... */
 	udc->driver = driver;
 	udc->gadget.dev.driver = &driver->driver;
 	dplus_pullup(udc, 1);
 
-	retval = device_add(&udc->gadget.dev);
-	if (retval) {
-		dev_err(udc->dev, "device_add error %d\n", retval);
-		goto add_fail;
-	}
-	retval = bind(&udc->gadget, driver);
-	if (retval) {
-		dev_err(udc->dev, "bind to driver %s --> error %d\n",
-			driver->driver.name, retval);
-		goto bind_fail;
-	}
-	dev_dbg(udc->dev, "registered gadget driver '%s'\n",
-		driver->driver.name);
-
 	if (!IS_ERR_OR_NULL(udc->transceiver)) {
 		retval = otg_set_peripheral(udc->transceiver->otg,
 						&udc->gadget);
 		if (retval) {
 			dev_err(udc->dev, "can't bind to transceiver\n");
-			goto transceiver_fail;
+			goto fail;
 		}
 	}
 
@@ -1848,12 +1827,7 @@ static int pxa27x_udc_start(struct usb_gadget_driver *driver,
 		udc_enable(udc);
 	return 0;
 
-transceiver_fail:
-	if (driver->unbind)
-		driver->unbind(&udc->gadget);
-bind_fail:
-	device_del(&udc->gadget.dev);
-add_fail:
+fail:
 	udc->driver = NULL;
 	udc->gadget.dev.driver = NULL;
 	return retval;
@@ -1878,9 +1852,6 @@ static void stop_activity(struct pxa_udc *udc, struct usb_gadget_driver *driver)
 
 	for (i = 0; i < NR_USB_ENDPOINTS; i++)
 		pxa_ep_disable(&udc->udc_usb_ep[i].usb_ep);
-
-	if (driver)
-		driver->disconnect(&udc->gadget);
 }
 
 /**
@@ -1889,25 +1860,17 @@ static void stop_activity(struct pxa_udc *udc, struct usb_gadget_driver *driver)
  *
  * Returns 0 if no error, -ENODEV, -EINVAL otherwise
  */
-static int pxa27x_udc_stop(struct usb_gadget_driver *driver)
+static int pxa27x_udc_stop(struct usb_gadget *g,
+		struct usb_gadget_driver *driver)
 {
-	struct pxa_udc *udc = the_controller;
-
-	if (!udc)
-		return -ENODEV;
-	if (!driver || driver != udc->driver || !driver->unbind)
-		return -EINVAL;
+	struct pxa_udc *udc = to_pxa(g);
 
 	stop_activity(udc, driver);
 	udc_disable(udc);
 	dplus_pullup(udc, 0);
 
-	driver->unbind(&udc->gadget);
 	udc->driver = NULL;
 
-	device_del(&udc->gadget.dev);
-	dev_info(udc->dev, "unregistered gadget driver '%s'\n",
-		 driver->driver.name);
 
 	if (!IS_ERR_OR_NULL(udc->transceiver))
 		return otg_set_peripheral(udc->transceiver->otg, NULL);
@@ -2511,13 +2474,24 @@ static int __init pxa_udc_probe(struct platform_device *pdev)
 			driver_name, udc->irq, retval);
 		goto err_irq;
 	}
+
+	retval = device_add(&udc->gadget.dev);
+	if (retval) {
+		dev_err(udc->dev, "device_add error %d\n", retval);
+		goto err_dev_add;
+	}
+
 	retval = usb_add_gadget_udc(&pdev->dev, &udc->gadget);
 	if (retval)
 		goto err_add_udc;
 
 	pxa_init_debugfs(udc);
+
 	return 0;
+
 err_add_udc:
+	device_unregister(&udc->gadget.dev);
+err_dev_add:
 	free_irq(udc->irq, udc);
 err_irq:
 	iounmap(udc->regs);
@@ -2538,6 +2512,7 @@ static int __exit pxa_udc_remove(struct platform_device *_dev)
 	int gpio = udc->mach->gpio_pullup;
 
 	usb_del_gadget_udc(&udc->gadget);
+	device_del(&udc->gadget.dev);
 	usb_gadget_unregister_driver(udc->driver);
 	free_irq(udc->irq, udc);
 	pxa_cleanup_debugfs(udc);