usb: gadget: fsl_udc_core: 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/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index c19f7f1..49642d4 100644 (file)
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -1254,9 +1254,10 @@ static int fsl_pullup(struct usb_gadget *gadget, int is_on)
        return 0;
 }
 
-static int fsl_start(struct usb_gadget_driver *driver,
-               int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
-static int fsl_stop(struct usb_gadget_driver *driver);
+static int fsl_udc_start(struct usb_gadget *g,
+               struct usb_gadget_driver *driver);
+static int fsl_udc_stop(struct usb_gadget *g,
+               struct usb_gadget_driver *driver);
 /* defined in gadget.h */
 static struct usb_gadget_ops fsl_gadget_ops = {
        .get_frame = fsl_get_frame,
@@ -1265,8 +1266,8 @@ static struct usb_gadget_ops fsl_gadget_ops = {
        .vbus_session = fsl_vbus_session,
        .vbus_draw = fsl_vbus_draw,
        .pullup = fsl_pullup,
-       .start = fsl_start,
-       .stop = fsl_stop,
+       .udc_start = fsl_udc_start,
+       .udc_stop = fsl_udc_stop,
 };
 
 /* Set protocol stall on ep0, protocol stall will automatically be cleared
@@ -1950,22 +1951,12 @@ static irqreturn_t fsl_udc_irq(int irq, void *_udc)
  * Hook to gadget drivers
  * Called by initialization code of gadget drivers
 *----------------------------------------------------------------*/
-static int fsl_start(struct usb_gadget_driver *driver,
-               int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
+static int fsl_udc_start(struct usb_gadget *g,
+               struct usb_gadget_driver *driver)
 {
-       int retval = -ENODEV;
+       int retval = 0;
        unsigned long flags = 0;
 
-       if (!udc_controller)
-               return -ENODEV;
-
-       if (!driver || driver->max_speed < USB_SPEED_FULL
-                       || !bind || !driver->disconnect || !driver->setup)
-               return -EINVAL;
-
-       if (udc_controller->driver)
-               return -EBUSY;
-
        /* lock is needed but whether should use this lock or another */
        spin_lock_irqsave(&udc_controller->lock, flags);
 
@@ -1975,15 +1966,6 @@ static int fsl_start(struct usb_gadget_driver *driver,
        udc_controller->gadget.dev.driver = &driver->driver;
        spin_unlock_irqrestore(&udc_controller->lock, flags);
 
-       /* bind udc driver to gadget driver */
-       retval = bind(&udc_controller->gadget, driver);
-       if (retval) {
-               VDBG("bind to %s --> %d", driver->driver.name, retval);
-               udc_controller->gadget.dev.driver = NULL;
-               udc_controller->driver = NULL;
-               goto out;
-       }
-
        if (!IS_ERR_OR_NULL(udc_controller->transceiver)) {
                /* Suspend the controller until OTG enable it */
                udc_controller->stopped = 1;
@@ -2009,28 +1991,17 @@ static int fsl_start(struct usb_gadget_driver *driver,
                udc_controller->ep0_state = WAIT_FOR_SETUP;
                udc_controller->ep0_dir = 0;
        }
-       printk(KERN_INFO "%s: bind to driver %s\n",
-                       udc_controller->gadget.name, driver->driver.name);
 
-out:
-       if (retval)
-               printk(KERN_WARNING "gadget driver register failed %d\n",
-                      retval);
        return retval;
 }
 
 /* Disconnect from gadget driver */
-static int fsl_stop(struct usb_gadget_driver *driver)
+static int fsl_udc_stop(struct usb_gadget *g,
+               struct usb_gadget_driver *driver)
 {
        struct fsl_ep *loop_ep;
        unsigned long flags;
 
-       if (!udc_controller)
-               return -ENODEV;
-
-       if (!driver || driver != udc_controller->driver || !driver->unbind)
-               return -EINVAL;
-
        if (!IS_ERR_OR_NULL(udc_controller->transceiver))
                otg_set_peripheral(udc_controller->transceiver->otg, NULL);
 
@@ -2051,16 +2022,9 @@ static int fsl_stop(struct usb_gadget_driver *driver)
                nuke(loop_ep, -ESHUTDOWN);
        spin_unlock_irqrestore(&udc_controller->lock, flags);
 
-       /* report disconnect; the controller is already quiesced */
-       driver->disconnect(&udc_controller->gadget);
-
-       /* unbind gadget and unhook driver. */
-       driver->unbind(&udc_controller->gadget);
        udc_controller->gadget.dev.driver = NULL;
        udc_controller->driver = NULL;
 
-       printk(KERN_WARNING "unregistered gadget driver '%s'\n",
-              driver->driver.name);
        return 0;
 }