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path: root/drivers/usb/gadget
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-rw-r--r--drivers/usb/gadget/udc-core.c89
1 files changed, 14 insertions, 75 deletions
diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index e7c591621a3..2a9cd369f71 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -102,28 +102,6 @@ EXPORT_SYMBOL_GPL(usb_gadget_unmap_request);
/* ------------------------------------------------------------------------- */
/**
- * usb_gadget_start - tells usb device controller to start up
- * @gadget: The gadget we want to get started
- * @driver: The driver we want to bind to @gadget
- * @bind: The bind function for @driver
- *
- * This call is issued by the UDC Class driver when it's about
- * to register a gadget driver to the device controller, before
- * calling gadget driver's bind() method.
- *
- * It allows the controller to be powered off until strictly
- * necessary to have it powered on.
- *
- * Returns zero on success, else negative errno.
- */
-static inline int usb_gadget_start(struct usb_gadget *gadget,
- struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *, struct usb_gadget_driver *))
-{
- return gadget->ops->start(driver, bind);
-}
-
-/**
* usb_gadget_udc_start - tells usb device controller to start up
* @gadget: The gadget we want to get started
* @driver: The driver we want to bind to @gadget
@@ -144,24 +122,6 @@ static inline int usb_gadget_udc_start(struct usb_gadget *gadget,
}
/**
- * usb_gadget_stop - tells usb device controller we don't need it anymore
- * @gadget: The device we want to stop activity
- * @driver: The driver to unbind from @gadget
- *
- * This call is issued by the UDC Class driver after calling
- * gadget driver's unbind() method.
- *
- * The details are implementation specific, but it can go as
- * far as powering off UDC completely and disable its data
- * line pullups.
- */
-static inline void usb_gadget_stop(struct usb_gadget *gadget,
- struct usb_gadget_driver *driver)
-{
- gadget->ops->stop(driver);
-}
-
-/**
* usb_gadget_udc_stop - tells usb device controller we don't need it anymore
* @gadget: The device we want to stop activity
* @driver: The driver to unbind from @gadget
@@ -246,14 +206,6 @@ err1:
}
EXPORT_SYMBOL_GPL(usb_add_gadget_udc);
-static int udc_is_newstyle(struct usb_udc *udc)
-{
- if (udc->gadget->ops->udc_start && udc->gadget->ops->udc_stop)
- return 1;
- return 0;
-}
-
-
static void usb_gadget_remove_driver(struct usb_udc *udc)
{
dev_dbg(&udc->dev, "unregistering UDC driver [%s]\n",
@@ -261,14 +213,10 @@ static void usb_gadget_remove_driver(struct usb_udc *udc)
kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE);
- if (udc_is_newstyle(udc)) {
- usb_gadget_disconnect(udc->gadget);
- udc->driver->disconnect(udc->gadget);
- udc->driver->unbind(udc->gadget);
- usb_gadget_udc_stop(udc->gadget, udc->driver);
- } else {
- usb_gadget_stop(udc->gadget, udc->driver);
- }
+ usb_gadget_disconnect(udc->gadget);
+ udc->driver->disconnect(udc->gadget);
+ udc->driver->unbind(udc->gadget);
+ usb_gadget_udc_stop(udc->gadget, udc->driver);
udc->driver = NULL;
udc->dev.driver = NULL;
@@ -321,22 +269,15 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri
udc->driver = driver;
udc->dev.driver = &driver->driver;
- if (udc_is_newstyle(udc)) {
- ret = driver->bind(udc->gadget, driver);
- if (ret)
- goto err1;
- ret = usb_gadget_udc_start(udc->gadget, driver);
- if (ret) {
- driver->unbind(udc->gadget);
- goto err1;
- }
- usb_gadget_connect(udc->gadget);
- } else {
-
- ret = usb_gadget_start(udc->gadget, driver, driver->bind);
- if (ret)
- goto err1;
+ ret = driver->bind(udc->gadget, driver);
+ if (ret)
+ goto err1;
+ ret = usb_gadget_udc_start(udc->gadget, driver);
+ if (ret) {
+ driver->unbind(udc->gadget);
+ goto err1;
}
+ usb_gadget_connect(udc->gadget);
kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE);
return 0;
@@ -440,13 +381,11 @@ static ssize_t usb_udc_softconn_store(struct device *dev,
struct usb_udc *udc = container_of(dev, struct usb_udc, dev);
if (sysfs_streq(buf, "connect")) {
- if (udc_is_newstyle(udc))
- usb_gadget_udc_start(udc->gadget, udc->driver);
+ usb_gadget_udc_start(udc->gadget, udc->driver);
usb_gadget_connect(udc->gadget);
} else if (sysfs_streq(buf, "disconnect")) {
usb_gadget_disconnect(udc->gadget);
- if (udc_is_newstyle(udc))
- usb_gadget_udc_stop(udc->gadget, udc->driver);
+ usb_gadget_udc_stop(udc->gadget, udc->driver);
} else {
dev_err(dev, "unsupported command '%s'\n", buf);
return -EINVAL;