usb: otg: Convert all users to pass struct usb_otg for OTG functions

This changes the otg functions so that they receive struct
otg instead of struct usb_phy as parameter and
converts all users of these functions to pass the otg member
of their usb_phy.

Includes fixes to IMX code from Sascha Hauer.

[ balbi@ti.com : fixed a compile warning on ehci-mv.c ]

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Acked-by: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index e82c699..ace8a65 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -1213,7 +1213,7 @@
 	/* NOTE:  non-OTG systems may use SRP TOO... */
 	} else if (!(udc->devstat & UDC_ATT)) {
 		if (udc->transceiver)
-			retval = otg_start_srp(udc->transceiver);
+			retval = otg_start_srp(udc->transceiver->otg);
 	}
 	spin_unlock_irqrestore(&udc->lock, flags);
 
@@ -2156,7 +2156,8 @@
 
 	/* connect to bus through transceiver */
 	if (udc->transceiver) {
-		status = otg_set_peripheral(udc->transceiver, &udc->gadget);
+		status = otg_set_peripheral(udc->transceiver->otg,
+						&udc->gadget);
 		if (status < 0) {
 			ERR("can't bind to transceiver\n");
 			if (driver->unbind) {
@@ -2202,7 +2203,7 @@
 		omap_vbus_session(&udc->gadget, 0);
 
 	if (udc->transceiver)
-		(void) otg_set_peripheral(udc->transceiver, NULL);
+		(void) otg_set_peripheral(udc->transceiver->otg, NULL);
 	else
 		pullup_disable(udc);