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, 16 insertions, 4 deletions

diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c
index 3a68e09309f7..3bf872e1ad39 100644
--- a/drivers/usb/gadget/fsl_qe_udc.c
+++ b/drivers/usb/gadget/fsl_qe_udc.c
@@ -1927,6 +1927,10 @@ static int qe_pullup(struct usb_gadget *gadget, int is_on)
         return -ENOTSUPP;
 }
 
+static int fsl_qe_start(struct usb_gadget_driver *driver,
+                int (*bind)(struct usb_gadget *));
+static int fsl_qe_stop(struct usb_gadget_driver *driver);
+
 /* defined in usb_gadget.h */
 static struct usb_gadget_ops qe_gadget_ops = {
         .get_frame = qe_get_frame,
@@ -1935,6 +1939,8 @@ static struct usb_gadget_ops qe_gadget_ops = {
         .vbus_session = qe_vbus_session,
         .vbus_draw = qe_vbus_draw,
         .pullup = qe_pullup,
+        .start = fsl_qe_start,
+        .stop = fsl_qe_stop,
 };
 
 /*-------------------------------------------------------------------------
@@ -2320,7 +2326,7 @@ static irqreturn_t qe_udc_irq(int irq, void *_udc)
 /*-------------------------------------------------------------------------
         Gadget driver probe and unregister.
  --------------------------------------------------------------------------*/
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
+static int fsl_qe_start(struct usb_gadget_driver *driver,
                 int (*bind)(struct usb_gadget *))
 {
         int retval;
@@ -2369,9 +2375,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
                 udc_controller->gadget.name, driver->driver.name);
         return 0;
 }
-EXPORT_SYMBOL(usb_gadget_probe_driver);
 
-int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
+static int fsl_qe_stop(struct usb_gadget_driver *driver)
 {
         struct qe_ep *loop_ep;
         unsigned long flags;
@@ -2411,7 +2416,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
                         driver->driver.name);
         return 0;
 }
-EXPORT_SYMBOL(usb_gadget_unregister_driver);
 
 /* udc structure's alloc and setup, include ep-param alloc */
 static struct qe_udc __devinit *qe_udc_config(struct platform_device *ofdev)
@@ -2662,11 +2666,17 @@ static int __devinit qe_udc_probe(struct platform_device *ofdev)
         if (ret)
                 goto err6;
 
+        ret = usb_add_gadget_udc(&ofdev->dev, &udc_controller->gadget);
+        if (ret)
+                goto err7;
+
         dev_info(udc_controller->dev,
                         "%s USB controller initialized as device\n",
                         (udc_controller->soc_type == PORT_QE) ? "QE" : "CPM");
         return 0;
 
+err7:
+        device_unregister(&udc_controller->gadget.dev);
 err6:
         free_irq(udc_controller->usb_irq, udc_controller);
 err5:
@@ -2721,6 +2731,8 @@ static int __devexit qe_udc_remove(struct platform_device *ofdev)
         if (!udc_controller)
                 return -ENODEV;
 
+        usb_del_gadget_udc(&udc_controller->gadget);
+
         udc_controller->done = &done;
         tasklet_disable(&udc_controller->rx_tasklet);