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, 17 insertions, 5 deletions

diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index 82fd249..740c7da 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -1375,6 +1375,10 @@ static int omap_pullup(struct usb_gadget *gadget, int is_on)
 	return 0;
 }
 
+static int omap_udc_start(struct usb_gadget_driver *driver,
+		int (*bind)(struct usb_gadget *));
+static int omap_udc_stop(struct usb_gadget_driver *driver);
+
 static struct usb_gadget_ops omap_gadget_ops = {
 	.get_frame		= omap_get_frame,
 	.wakeup			= omap_wakeup,
@@ -1382,6 +1386,8 @@ static struct usb_gadget_ops omap_gadget_ops = {
 	.vbus_session		= omap_vbus_session,
 	.vbus_draw		= omap_vbus_draw,
 	.pullup			= omap_pullup,
+	.start			= omap_udc_start,
+	.stop			= omap_udc_stop,
 };
 
 /*-------------------------------------------------------------------------*/
@@ -2102,7 +2108,7 @@ static inline int machine_without_vbus_sense(void)
 		);
 }
 
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
+static int omap_udc_start(struct usb_gadget_driver *driver,
 		int (*bind)(struct usb_gadget *))
 {
 	int		status = -ENODEV;
@@ -2186,9 +2192,8 @@ done:
 		omap_udc_enable_clock(0);
 	return status;
 }
-EXPORT_SYMBOL(usb_gadget_probe_driver);
 
-int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
+static int omap_udc_stop(struct usb_gadget_driver *driver)
 {
 	unsigned long	flags;
 	int		status = -ENODEV;
@@ -2222,8 +2227,6 @@ int usb_gadget_unregister_driver (struct usb_gadget_driver *driver)
 	DBG("unregistered driver '%s'\n", driver->driver.name);
 	return status;
 }
-EXPORT_SYMBOL(usb_gadget_unregister_driver);
-
 
 /*-------------------------------------------------------------------------*/
 
@@ -2991,9 +2994,16 @@ known:
 
 	create_proc_file();
 	status = device_add(&udc->gadget.dev);
+	if (status)
+		goto cleanup4;
+
+	status = usb_add_gadget_udc(&pdev->dev, &udc->gadget);
 	if (!status)
 		return status;
 	/* If fail, fall through */
+cleanup4:
+	remove_proc_file();
+
 #ifdef	USE_ISO
 cleanup3:
 	free_irq(pdev->resource[2].start, udc);
@@ -3029,6 +3039,8 @@ static int __exit omap_udc_remove(struct platform_device *pdev)
 
 	if (!udc)
 		return -ENODEV;
+
+	usb_del_gadget_udc(&udc->gadget);
 	if (udc->driver)
 		return -EBUSY;