summaryrefslogtreecommitdiffstats
path: root/drivers/usb/gadget/s3c2410_udc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/gadget/s3c2410_udc.c')
-rw-r--r--drivers/usb/gadget/s3c2410_udc.c91
1 files changed, 23 insertions, 68 deletions
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index a2fa6e1..08f8965 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1538,9 +1538,10 @@ static int s3c2410_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
return -ENOTSUPP;
}
-static int s3c2410_udc_start(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *, struct usb_gadget_driver *));
-static int s3c2410_udc_stop(struct usb_gadget_driver *driver);
+static int s3c2410_udc_start(struct usb_gadget *g,
+ struct usb_gadget_driver *driver);
+static int s3c2410_udc_stop(struct usb_gadget *g,
+ struct usb_gadget_driver *driver);
static const struct usb_gadget_ops s3c2410_ops = {
.get_frame = s3c2410_udc_get_frame,
@@ -1549,8 +1550,8 @@ static const struct usb_gadget_ops s3c2410_ops = {
.pullup = s3c2410_udc_pullup,
.vbus_session = s3c2410_udc_vbus_session,
.vbus_draw = s3c2410_vbus_draw,
- .start = s3c2410_udc_start,
- .stop = s3c2410_udc_stop,
+ .udc_start = s3c2410_udc_start,
+ .udc_stop = s3c2410_udc_stop,
};
static void s3c2410_udc_command(enum s3c2410_udc_cmd_e cmd)
@@ -1664,84 +1665,28 @@ static void s3c2410_udc_enable(struct s3c2410_udc *dev)
s3c2410_udc_command(S3C2410_UDC_P_ENABLE);
}
-static int s3c2410_udc_start(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
+static int s3c2410_udc_start(struct usb_gadget *g,
+ struct usb_gadget_driver *driver)
{
- struct s3c2410_udc *udc = the_controller;
- int retval;
+ struct s3c2410_udc *udc = to_s3c2410(g);
dprintk(DEBUG_NORMAL, "%s() '%s'\n", __func__, driver->driver.name);
- /* Sanity checks */
- if (!udc)
- return -ENODEV;
-
- if (udc->driver)
- return -EBUSY;
-
- if (!bind || !driver->setup || driver->max_speed < USB_SPEED_FULL) {
- dev_err(&udc->gadget.dev, "Invalid driver: bind %p setup %p speed %d\n",
- bind, driver->setup, driver->max_speed);
- return -EINVAL;
- }
-#if defined(MODULE)
- if (!driver->unbind) {
- dev_err(&udc->gadget.dev, "Invalid driver: no unbind method\n");
- return -EINVAL;
- }
-#endif
-
/* Hook the driver */
udc->driver = driver;
udc->gadget.dev.driver = &driver->driver;
- /* Bind the driver */
- retval = device_add(&udc->gadget.dev);
- if (retval) {
- dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval);
- goto register_error;
- }
-
- dprintk(DEBUG_NORMAL, "binding gadget driver '%s'\n",
- driver->driver.name);
-
- retval = bind(&udc->gadget, driver);
- if (retval) {
- device_del(&udc->gadget.dev);
- goto register_error;
- }
-
/* Enable udc */
s3c2410_udc_enable(udc);
return 0;
-
-register_error:
- udc->driver = NULL;
- udc->gadget.dev.driver = NULL;
- return retval;
}
-static int s3c2410_udc_stop(struct usb_gadget_driver *driver)
+static int s3c2410_udc_stop(struct usb_gadget *g,
+ struct usb_gadget_driver *driver)
{
- struct s3c2410_udc *udc = the_controller;
-
- if (!udc)
- return -ENODEV;
-
- if (!driver || driver != udc->driver || !driver->unbind)
- return -EINVAL;
-
- dprintk(DEBUG_NORMAL, "usb_gadget_unregister_driver() '%s'\n",
- driver->driver.name);
-
- /* report disconnect */
- if (driver->disconnect)
- driver->disconnect(&udc->gadget);
+ struct s3c2410_udc *udc = to_s3c2410(g);
- driver->unbind(&udc->gadget);
-
- device_del(&udc->gadget.dev);
udc->driver = NULL;
/* Disable udc */
@@ -1883,6 +1828,13 @@ static int s3c2410_udc_probe(struct platform_device *pdev)
udc->gadget.dev.parent = &pdev->dev;
udc->gadget.dev.dma_mask = pdev->dev.dma_mask;
+ /* Bind the driver */
+ retval = device_add(&udc->gadget.dev);
+ if (retval) {
+ dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval);
+ goto err_device_add;
+ }
+
the_controller = udc;
platform_set_drvdata(pdev, udc);
@@ -1971,6 +1923,8 @@ err_gpio_claim:
err_int:
free_irq(IRQ_USBD, udc);
err_map:
+ device_unregister(&udc->gadget.dev);
+err_device_add:
iounmap(base_addr);
err_mem:
release_mem_region(rsrc_start, rsrc_len);
@@ -1988,10 +1942,11 @@ static int s3c2410_udc_remove(struct platform_device *pdev)
dev_dbg(&pdev->dev, "%s()\n", __func__);
- usb_del_gadget_udc(&udc->gadget);
if (udc->driver)
return -EBUSY;
+ usb_del_gadget_udc(&udc->gadget);
+ device_unregister(&udc->gadget.dev);
debugfs_remove(udc->regs_info);
if (udc_info && !udc_info->udc_command &&
OpenPOWER on IntegriCloud