usb: gadget: pxa25x_udc: convert to udc_start/udc_stop

Mechanical change making use of the new (can we
still call it new ?) interface for registering
UDC drivers.

Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index d4ca9f1..fa9c344 100644 (file)
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -996,9 +996,10 @@ static int pxa25x_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
        return -EOPNOTSUPP;
 }
 
-static int pxa25x_start(struct usb_gadget_driver *driver,
-               int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
-static int pxa25x_stop(struct usb_gadget_driver *driver);
+static int pxa25x_udc_start(struct usb_gadget *g,
+               struct usb_gadget_driver *driver);
+static int pxa25x_udc_stop(struct usb_gadget *g,
+               struct usb_gadget_driver *driver);
 
 static const struct usb_gadget_ops pxa25x_udc_ops = {
        .get_frame      = pxa25x_udc_get_frame,
@@ -1006,8 +1007,8 @@ static const struct usb_gadget_ops pxa25x_udc_ops = {
        .vbus_session   = pxa25x_udc_vbus_session,
        .pullup         = pxa25x_udc_pullup,
        .vbus_draw      = pxa25x_udc_vbus_draw,
-       .start          = pxa25x_start,
-       .stop           = pxa25x_stop,
+       .udc_start      = pxa25x_udc_start,
+       .udc_stop       = pxa25x_udc_stop,
 };
 
 /*-------------------------------------------------------------------------*/
@@ -1254,23 +1255,12 @@ static void udc_enable (struct pxa25x_udc *dev)
  * disconnect is reported.  then a host may connect again, or
  * the driver might get unbound.
  */
-static int pxa25x_start(struct usb_gadget_driver *driver,
-               int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
+static int pxa25x_udc_start(struct usb_gadget *g,
+               struct usb_gadget_driver *driver)
 {
-       struct pxa25x_udc       *dev = the_controller;
+       struct pxa25x_udc       *dev = to_pxa25x(g);
        int                     retval;
 
-       if (!driver
-                       || driver->max_speed < USB_SPEED_FULL
-                       || !bind
-                       || !driver->disconnect
-                       || !driver->setup)
-               return -EINVAL;
-       if (!dev)
-               return -ENODEV;
-       if (dev->driver)
-               return -EBUSY;
-
        /* first hook up the driver ... */
        dev->driver = driver;
        dev->gadget.dev.driver = &driver->driver;
@@ -1278,34 +1268,20 @@ static int pxa25x_start(struct usb_gadget_driver *driver,
 
        retval = device_add (&dev->gadget.dev);
        if (retval) {
-fail:
                dev->driver = NULL;
                dev->gadget.dev.driver = NULL;
                return retval;
        }
-       retval = bind(&dev->gadget, driver);
-       if (retval) {
-               DMSG("bind to driver %s --> error %d\n",
-                               driver->driver.name, retval);
-               device_del (&dev->gadget.dev);
-               goto fail;
-       }
 
        /* ... then enable host detection and ep0; and we're ready
         * for set_configuration as well as eventual disconnect.
         */
-       DMSG("registered gadget driver '%s'\n", driver->driver.name);
-
        /* connect to bus through transceiver */
        if (!IS_ERR_OR_NULL(dev->transceiver)) {
                retval = otg_set_peripheral(dev->transceiver->otg,
                                                &dev->gadget);
-               if (retval) {
-                       DMSG("can't bind to transceiver\n");
-                       if (driver->unbind)
-                               driver->unbind(&dev->gadget);
+               if (retval)
                        goto bind_fail;
-               }
        }
 
        pullup(dev);
@@ -1334,22 +1310,14 @@ stop_activity(struct pxa25x_udc *dev, struct usb_gadget_driver *driver)
        }
        del_timer_sync(&dev->timer);
 
-       /* report disconnect; the driver is already quiesced */
-       if (driver)
-               driver->disconnect(&dev->gadget);
-
        /* re-init driver-visible data structures */
        udc_reinit(dev);
 }
 
-static int pxa25x_stop(struct usb_gadget_driver *driver)
+static int pxa25x_udc_stop(struct usb_gadget*g,
+               struct usb_gadget_driver *driver)
 {
-       struct pxa25x_udc       *dev = the_controller;
-
-       if (!dev)
-               return -ENODEV;
-       if (!driver || driver != dev->driver || !driver->unbind)
-               return -EINVAL;
+       struct pxa25x_udc       *dev = to_pxa25x(g);
 
        local_irq_disable();
        dev->pullup = 0;
@@ -1360,14 +1328,12 @@ static int pxa25x_stop(struct usb_gadget_driver *driver)
        if (!IS_ERR_OR_NULL(dev->transceiver))
                (void) otg_set_peripheral(dev->transceiver->otg, NULL);
 
-       driver->unbind(&dev->gadget);
        dev->gadget.dev.driver = NULL;
        dev->driver = NULL;
 
        device_del (&dev->gadget.dev);
-
-       DMSG("unregistered gadget driver '%s'\n", driver->driver.name);
        dump_state(dev);
+
        return 0;
 }
 

diff --git a/drivers/usb/gadget/pxa25x_udc.h b/drivers/usb/gadget/pxa25x_udc.h
index 2eca1e7..3fe5931 100644 (file)
--- a/drivers/usb/gadget/pxa25x_udc.h
+++ b/drivers/usb/gadget/pxa25x_udc.h
@@ -126,6 +126,7 @@ struct pxa25x_udc {
        struct dentry                           *debugfs_udc;
 #endif
 };
+#define to_pxa25x(g)   (container_of((g), struct pxa25x_udc, gadget))
 
 /*-------------------------------------------------------------------------*/