Add a function to notify the udc core, that a bus reset occured. Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx> --- drivers/usb/gadget/udc-core.c | 15 +++++++++++++++ include/usb/gadget.h | 4 ++++ 2 files changed, 19 insertions(+) diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index e357456098ae..096f05ed48df 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -108,6 +108,21 @@ void usb_gadget_set_state(struct usb_gadget *gadget, } EXPORT_SYMBOL_GPL(usb_gadget_set_state); +/** + * usb_gadget_udc_reset - notifies the udc core that bus reset occurs + * @gadget: The gadget which bus reset occurs + * @driver: The gadget driver we want to notify + * + * If the udc driver has bus reset handler, it needs to call this when the bus + * reset occurs, it notifies the gadget driver that the bus reset occurs as + * well as updates gadget state. + */ +void usb_gadget_udc_reset(struct usb_gadget *gadget, + struct usb_gadget_driver *driver) +{ + usb_gadget_set_state(gadget, USB_STATE_DEFAULT); +} +EXPORT_SYMBOL_GPL(usb_gadget_udc_reset); /* ------------------------------------------------------------------------- */ /** diff --git a/include/usb/gadget.h b/include/usb/gadget.h index 80418a9cd447..afa11b2d9d8a 100644 --- a/include/usb/gadget.h +++ b/include/usb/gadget.h @@ -1018,6 +1018,10 @@ extern void usb_gadget_set_state(struct usb_gadget *gadget, /*-------------------------------------------------------------------------*/ +/* utility to tell udc core that the bus reset occurs */ +extern void usb_gadget_udc_reset(struct usb_gadget *gadget, + struct usb_gadget_driver *driver); + /* utility wrapping a simple endpoint selection policy */ extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *, -- 2.23.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox