usb: gadget: convert all users to the new udc infrastructure

peripheral drivers are using usb_add_gadget()/usb_del_gadget() to
register/unregister to the udc-core.

The udc-core will take the first available gadget driver and attach
function driver which is calling usb_gadget_register_driver(). This is
the same behaviour we have right now.

Only dummy_hcd was tested, the others were compiled tested.

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Anton Tikhomirov <av.tikhomirov@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Dan Carpenter <error27@gmail.com>
Cc: Darius Augulis <augulis.darius@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Pavankumar Kondeti <pkondeti@codeaurora.org>
Cc: Roy Huang <roy.huang@analog.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Cc: Xiaochen Shen <xiaochen.shen@intel.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Cc: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Cc: cxie4 <cxie4@marvell.com>
Cc: linux-geode@lists.infradead.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 13 insertions, 5 deletions

diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 476d88e1ae9..1e6ea6f2650 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -1410,11 +1410,17 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
         return 0;
 }
 
+static int net2280_start(struct usb_gadget_driver *driver,
+                int (*bind)(struct usb_gadget *));
+static int net2280_stop(struct usb_gadget_driver *driver);
+
 static const struct usb_gadget_ops net2280_ops = {
         .get_frame      = net2280_get_frame,
         .wakeup         = net2280_wakeup,
         .set_selfpowered = net2280_set_selfpowered,
         .pullup         = net2280_pullup,
+        .start          = net2280_start,
+        .stop           = net2280_stop,
 };
 
 /*-------------------------------------------------------------------------*/
@@ -1930,7 +1936,7 @@ static void ep0_start (struct net2280 *dev)
  * disconnect is reported.  then a host may connect again, or
  * the driver might get unbound.
  */
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
+static int net2280_start(struct usb_gadget_driver *driver,
                 int (*bind)(struct usb_gadget *))
 {
         struct net2280          *dev = the_controller;
@@ -1994,7 +2000,6 @@ err_unbind:
         dev->driver = NULL;
         return retval;
 }
-EXPORT_SYMBOL(usb_gadget_probe_driver);
 
 static void
 stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
@@ -2022,7 +2027,7 @@ stop_activity (struct net2280 *dev, struct usb_gadget_driver *driver)
         usb_reinit (dev);
 }
 
-int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
+static int net2280_stop(struct usb_gadget_driver *driver)
 {
         struct net2280  *dev = the_controller;
         unsigned long   flags;
@@ -2049,8 +2054,6 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
         DEBUG (dev, "unregistered driver '%s'\n", driver->driver.name);
         return 0;
 }
-EXPORT_SYMBOL (usb_gadget_unregister_driver);
-
 
 /*-------------------------------------------------------------------------*/
 
@@ -2732,6 +2735,8 @@ static void net2280_remove (struct pci_dev *pdev)
 {
         struct net2280          *dev = pci_get_drvdata (pdev);
 
+        usb_del_gadget_udc(&dev->gadget);
+
         BUG_ON(dev->driver);
 
         /* then clean up the resources we allocated during probe() */
@@ -2916,6 +2921,9 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
         retval = device_create_file (&pdev->dev, &dev_attr_registers);
         if (retval) goto done;
 
+        retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget);
+        if (retval)
+                goto done;
         return 0;
 
 done: