USB: gadget: add INT support for Blackfin musb

Signed-off-by: NCliff Cai <cliff.cai@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/gadget/epautoconf.c

@@ -284,6 +284,11 @@ struct usb_ep * __init usb_ep_autoconfig (
 				ep = find_ep (gadget, "ep5in");
 			else
 				ep = find_ep (gadget, "ep6out");
+		} else if (USB_ENDPOINT_XFER_INT == type) {
+			if (USB_DIR_IN & desc->bEndpointAddress)
+				ep = find_ep(gadget, "ep1in");
+			else
+				ep = find_ep(gadget, "ep2out");
 		} else
 			ep = NULL;
 		if (ep && ep_matches (gadget, ep, desc))