usb: gadget: udc-core: add "new-style" registration interface

udc_start() should only trigger the internal state machine and make
minimal house keeping. Before that call udc-core calls the bind()
callback and after the callback the pullup().

udc_stop() is simillar, udc-core calls pullup(), unbind() and finally
udc_stop().

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, 6 insertions, 0 deletions

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index afb67d997f0c..087f4b931833 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -459,6 +459,12 @@ struct usb_gadget_ops {
         int     (*ioctl)(struct usb_gadget *,
                                 unsigned code, unsigned long param);
         void    (*get_config_params)(struct usb_dcd_config_params *);
+        int     (*udc_start)(struct usb_gadget *,
+                        struct usb_gadget_driver *);
+        int     (*udc_stop)(struct usb_gadget *,
+                        struct usb_gadget_driver *);
+
+        /* Those two are deprecated */
         int     (*start)(struct usb_gadget_driver *,
                         int (*bind)(struct usb_gadget *));
         int     (*stop)(struct usb_gadget_driver *);