1 files changed, 24 insertions, 73 deletions

diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c
index 6490c0040e3..eb8c3bedb57 100644
--- a/drivers/usb/gadget/pch_udc.c
+++ b/drivers/usb/gadget/pch_udc.c
@@ -358,7 +358,6 @@ struct pch_udc_dev {
 			prot_stall:1,
 			irq_registered:1,
 			mem_region:1,
-			registered:1,
 			suspended:1,
 			connected:1,
 			vbus_session:1,
@@ -375,6 +374,7 @@ struct pch_udc_dev {
 	struct pch_udc_cfg_data		cfg_data;
 	struct pch_vbus_gpio_data	vbus_gpio;
 };
+#define to_pch_udc(g)	(container_of((g), struct pch_udc_dev, gadget))
 
 #define PCH_UDC_PCI_BAR			1
 #define PCI_DEVICE_ID_INTEL_EG20T_UDC	0x8808
@@ -384,7 +384,6 @@ struct pch_udc_dev {
 
 static const char	ep0_string[] = "ep0in";
 static DEFINE_SPINLOCK(udc_stall_spinlock);	/* stall spin lock */
-struct pch_udc_dev *pch_udc;		/* pointer to device object */
 static bool speed_fs;
 module_param_named(speed_fs, speed_fs, bool, S_IRUGO);
 MODULE_PARM_DESC(speed_fs, "true for Full speed operation");
@@ -1235,9 +1234,10 @@ static int pch_udc_pcd_vbus_draw(struct usb_gadget *gadget, unsigned int mA)
 	return -EOPNOTSUPP;
 }
 
-static int pch_udc_start(struct usb_gadget_driver *driver,
-	int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
-static int pch_udc_stop(struct usb_gadget_driver *driver);
+static int pch_udc_start(struct usb_gadget *g,
+		struct usb_gadget_driver *driver);
+static int pch_udc_stop(struct usb_gadget *g,
+		struct usb_gadget_driver *driver);
 static const struct usb_gadget_ops pch_udc_ops = {
 	.get_frame = pch_udc_pcd_get_frame,
 	.wakeup = pch_udc_pcd_wakeup,
@@ -1245,8 +1245,8 @@ static const struct usb_gadget_ops pch_udc_ops = {
 	.pullup = pch_udc_pcd_pullup,
 	.vbus_session = pch_udc_pcd_vbus_session,
 	.vbus_draw = pch_udc_pcd_vbus_draw,
-	.start	= pch_udc_start,
-	.stop	= pch_udc_stop,
+	.udc_start = pch_udc_start,
+	.udc_stop = pch_udc_stop,
 };
 
 /**
@@ -1440,6 +1440,8 @@ static void pch_vbus_gpio_free(struct pch_udc_dev *dev)
  */
 static void complete_req(struct pch_udc_ep *ep, struct pch_udc_request *req,
 								 int status)
+	__releases(&dev->lock)
+	__acquires(&dev->lock)
 {
 	struct pch_udc_dev	*dev;
 	unsigned halted = ep->halted;
@@ -2381,6 +2383,8 @@ static void pch_udc_svc_control_in(struct pch_udc_dev *dev)
  * @dev:	Reference to the device structure
  */
 static void pch_udc_svc_control_out(struct pch_udc_dev *dev)
+	__releases(&dev->lock)
+	__acquires(&dev->lock)
 {
 	u32	stat;
 	int setup_supported;
@@ -2892,12 +2896,12 @@ static void pch_udc_pcd_reinit(struct pch_udc_dev *dev)
 			ep->offset_addr = (UDC_EPINT_OUT_SHIFT + ep->num) *
 					  UDC_EP_REG_SHIFT;
 		/* need to set ep->ep.maxpacket and set Default Configuration?*/
-		ep->ep.maxpacket = UDC_BULK_MAX_PKT_SIZE;
+		usb_ep_set_maxpacket_limit(&ep->ep, UDC_BULK_MAX_PKT_SIZE);
 		list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
 		INIT_LIST_HEAD(&ep->queue);
 	}
-	dev->ep[UDC_EP0IN_IDX].ep.maxpacket = UDC_EP0IN_MAX_PKT_SIZE;
-	dev->ep[UDC_EP0OUT_IDX].ep.maxpacket = UDC_EP0OUT_MAX_PKT_SIZE;
+	usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0IN_IDX].ep, UDC_EP0IN_MAX_PKT_SIZE);
+	usb_ep_set_maxpacket_limit(&dev->ep[UDC_EP0OUT_IDX].ep, UDC_EP0OUT_MAX_PKT_SIZE);
 
 	/* remove ep0 in and out from the list.  They have own pointer */
 	list_del_init(&dev->ep[UDC_EP0IN_IDX].ep.ep_list);
@@ -2981,40 +2985,14 @@ static int init_dma_pools(struct pch_udc_dev *dev)
 	return 0;
 }
 
-static int pch_udc_start(struct usb_gadget_driver *driver,
-	int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
+static int pch_udc_start(struct usb_gadget *g,
+		struct usb_gadget_driver *driver)
 {
-	struct pch_udc_dev	*dev = pch_udc;
-	int			retval;
-
-	if (!driver || (driver->max_speed == USB_SPEED_UNKNOWN) || !bind ||
-	    !driver->setup || !driver->unbind || !driver->disconnect) {
-		dev_err(&dev->pdev->dev,
-			"%s: invalid driver parameter\n", __func__);
-		return -EINVAL;
-	}
-
-	if (!dev)
-		return -ENODEV;
+	struct pch_udc_dev	*dev = to_pch_udc(g);
 
-	if (dev->driver) {
-		dev_err(&dev->pdev->dev, "%s: already bound\n", __func__);
-		return -EBUSY;
-	}
 	driver->driver.bus = NULL;
 	dev->driver = driver;
-	dev->gadget.dev.driver = &driver->driver;
-
-	/* Invoke the bind routine of the gadget driver */
-	retval = bind(&dev->gadget, driver);
 
-	if (retval) {
-		dev_err(&dev->pdev->dev, "%s: binding to %s returning %d\n",
-		       __func__, driver->driver.name, retval);
-		dev->driver = NULL;
-		dev->gadget.dev.driver = NULL;
-		return retval;
-	}
 	/* get ready for ep0 traffic */
 	pch_udc_setup_ep0(dev);
 
@@ -3026,30 +3004,20 @@ static int pch_udc_start(struct usb_gadget_driver *driver,
 	return 0;
 }
 
-static int pch_udc_stop(struct usb_gadget_driver *driver)
+static int pch_udc_stop(struct usb_gadget *g,
+		struct usb_gadget_driver *driver)
 {
-	struct pch_udc_dev	*dev = pch_udc;
-
-	if (!dev)
-		return -ENODEV;
-
-	if (!driver || (driver != dev->driver)) {
-		dev_err(&dev->pdev->dev,
-			"%s: invalid driver parameter\n", __func__);
-		return -EINVAL;
-	}
+	struct pch_udc_dev	*dev = to_pch_udc(g);
 
 	pch_udc_disable_interrupts(dev, UDC_DEVINT_MSK);
 
 	/* Assures that there are no pending requests with this driver */
-	driver->disconnect(&dev->gadget);
-	driver->unbind(&dev->gadget);
-	dev->gadget.dev.driver = NULL;
 	dev->driver = NULL;
 	dev->connected = 0;
 
 	/* set SD */
 	pch_udc_set_disconnect(dev);
+
 	return 0;
 }
 
@@ -3111,10 +3079,7 @@ static void pch_udc_remove(struct pci_dev *pdev)
 				   pci_resource_len(pdev, PCH_UDC_PCI_BAR));
 	if (dev->active)
 		pci_disable_device(pdev);
-	if (dev->registered)
-		device_unregister(&dev->gadget.dev);
 	kfree(dev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
@@ -3164,11 +3129,6 @@ static int pch_udc_probe(struct pci_dev *pdev,
 	int			retval;
 	struct pch_udc_dev	*dev;
 
-	/* one udc only */
-	if (pch_udc) {
-		pr_err("%s: already probed\n", __func__);
-		return -EBUSY;
-	}
 	/* init */
 	dev = kzalloc(sizeof *dev, GFP_KERNEL);
 	if (!dev) {
@@ -3207,7 +3167,6 @@ static int pch_udc_probe(struct pci_dev *pdev,
 		retval = -ENODEV;
 		goto finished;
 	}
-	pch_udc = dev;
 	/* initialize the hardware */
 	if (pch_udc_pcd_init(dev)) {
 		retval = -ENODEV;
@@ -3235,21 +3194,13 @@ static int pch_udc_probe(struct pci_dev *pdev,
 	if (retval)
 		goto finished;
 
-	dev_set_name(&dev->gadget.dev, "gadget");
-	dev->gadget.dev.parent = &pdev->dev;
-	dev->gadget.dev.dma_mask = pdev->dev.dma_mask;
-	dev->gadget.dev.release = gadget_release;
 	dev->gadget.name = KBUILD_MODNAME;
 	dev->gadget.max_speed = USB_SPEED_HIGH;
 
-	retval = device_register(&dev->gadget.dev);
-	if (retval)
-		goto finished;
-	dev->registered = 1;
-
 	/* Put the device in disconnected state till a driver is bound */
 	pch_udc_set_disconnect(dev);
-	retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget);
+	retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget,
+			gadget_release);
 	if (retval)
 		goto finished;
 	return 0;
@@ -3259,7 +3210,7 @@ finished:
 	return retval;
 }
 
-static DEFINE_PCI_DEVICE_TABLE(pch_udc_pcidev_id) = {
+static const struct pci_device_id pch_udc_pcidev_id[] = {
 	{
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EG20T_UDC),
 		.class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,