usb: gadget: Gadget directory cleanup - group UDC drivers

The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the UDC drivers into a separate directory.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 0 insertions, 1993 deletions

diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
deleted file mode 100644
index 46008421c1e..00000000000
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ /dev/null
@@ -1,1993 +0,0 @@
-/*
- * R8A66597 UDC (USB gadget)
- *
- * Copyright (C) 2006-2009 Renesas Solutions Corp.
- *
- * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-#include "r8a66597-udc.h"
-
-#define DRIVER_VERSION	"2011-09-26"
-
-static const char udc_name[] = "r8a66597_udc";
-static const char *r8a66597_ep_name[] = {
-	"ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7",
-	"ep8", "ep9",
-};
-
-static void init_controller(struct r8a66597 *r8a66597);
-static void disable_controller(struct r8a66597 *r8a66597);
-static void irq_ep0_write(struct r8a66597_ep *ep, struct r8a66597_request *req);
-static void irq_packet_write(struct r8a66597_ep *ep,
-				struct r8a66597_request *req);
-static int r8a66597_queue(struct usb_ep *_ep, struct usb_request *_req,
-			gfp_t gfp_flags);
-
-static void transfer_complete(struct r8a66597_ep *ep,
-		struct r8a66597_request *req, int status);
-
-/*-------------------------------------------------------------------------*/
-static inline u16 get_usb_speed(struct r8a66597 *r8a66597)
-{
-	return r8a66597_read(r8a66597, DVSTCTR0) & RHST;
-}
-
-static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
-		unsigned long reg)
-{
-	u16 tmp;
-
-	tmp = r8a66597_read(r8a66597, INTENB0);
-	r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE,
-			INTENB0);
-	r8a66597_bset(r8a66597, (1 << pipenum), reg);
-	r8a66597_write(r8a66597, tmp, INTENB0);
-}
-
-static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
-		unsigned long reg)
-{
-	u16 tmp;
-
-	tmp = r8a66597_read(r8a66597, INTENB0);
-	r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE,
-			INTENB0);
-	r8a66597_bclr(r8a66597, (1 << pipenum), reg);
-	r8a66597_write(r8a66597, tmp, INTENB0);
-}
-
-static void r8a66597_usb_connect(struct r8a66597 *r8a66597)
-{
-	r8a66597_bset(r8a66597, CTRE, INTENB0);
-	r8a66597_bset(r8a66597, BEMPE | BRDYE, INTENB0);
-
-	r8a66597_bset(r8a66597, DPRPU, SYSCFG0);
-}
-
-static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597)
-__releases(r8a66597->lock)
-__acquires(r8a66597->lock)
-{
-	r8a66597_bclr(r8a66597, CTRE, INTENB0);
-	r8a66597_bclr(r8a66597, BEMPE | BRDYE, INTENB0);
-	r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
-
-	r8a66597->gadget.speed = USB_SPEED_UNKNOWN;
-	spin_unlock(&r8a66597->lock);
-	r8a66597->driver->disconnect(&r8a66597->gadget);
-	spin_lock(&r8a66597->lock);
-
-	disable_controller(r8a66597);
-	init_controller(r8a66597);
-	r8a66597_bset(r8a66597, VBSE, INTENB0);
-	INIT_LIST_HEAD(&r8a66597->ep[0].queue);
-}
-
-static inline u16 control_reg_get_pid(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	u16 pid = 0;
-	unsigned long offset;
-
-	if (pipenum == 0) {
-		pid = r8a66597_read(r8a66597, DCPCTR) & PID;
-	} else if (pipenum < R8A66597_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		pid = r8a66597_read(r8a66597, offset) & PID;
-	} else {
-		dev_err(r8a66597_to_dev(r8a66597), "unexpect pipe num (%d)\n",
-			pipenum);
-	}
-
-	return pid;
-}
-
-static inline void control_reg_set_pid(struct r8a66597 *r8a66597, u16 pipenum,
-		u16 pid)
-{
-	unsigned long offset;
-
-	if (pipenum == 0) {
-		r8a66597_mdfy(r8a66597, pid, PID, DCPCTR);
-	} else if (pipenum < R8A66597_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		r8a66597_mdfy(r8a66597, pid, PID, offset);
-	} else {
-		dev_err(r8a66597_to_dev(r8a66597), "unexpect pipe num (%d)\n",
-			pipenum);
-	}
-}
-
-static inline void pipe_start(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	control_reg_set_pid(r8a66597, pipenum, PID_BUF);
-}
-
-static inline void pipe_stop(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	control_reg_set_pid(r8a66597, pipenum, PID_NAK);
-}
-
-static inline void pipe_stall(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	control_reg_set_pid(r8a66597, pipenum, PID_STALL);
-}
-
-static inline u16 control_reg_get(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	u16 ret = 0;
-	unsigned long offset;
-
-	if (pipenum == 0) {
-		ret = r8a66597_read(r8a66597, DCPCTR);
-	} else if (pipenum < R8A66597_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		ret = r8a66597_read(r8a66597, offset);
-	} else {
-		dev_err(r8a66597_to_dev(r8a66597), "unexpect pipe num (%d)\n",
-			pipenum);
-	}
-
-	return ret;
-}
-
-static inline void control_reg_sqclr(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	unsigned long offset;
-
-	pipe_stop(r8a66597, pipenum);
-
-	if (pipenum == 0) {
-		r8a66597_bset(r8a66597, SQCLR, DCPCTR);
-	} else if (pipenum < R8A66597_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		r8a66597_bset(r8a66597, SQCLR, offset);
-	} else {
-		dev_err(r8a66597_to_dev(r8a66597), "unexpect pipe num (%d)\n",
-			pipenum);
-	}
-}
-
-static void control_reg_sqset(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	unsigned long offset;
-
-	pipe_stop(r8a66597, pipenum);
-
-	if (pipenum == 0) {
-		r8a66597_bset(r8a66597, SQSET, DCPCTR);
-	} else if (pipenum < R8A66597_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		r8a66597_bset(r8a66597, SQSET, offset);
-	} else {
-		dev_err(r8a66597_to_dev(r8a66597),
-			"unexpect pipe num(%d)\n", pipenum);
-	}
-}
-
-static u16 control_reg_sqmon(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	unsigned long offset;
-
-	if (pipenum == 0) {
-		return r8a66597_read(r8a66597, DCPCTR) & SQMON;
-	} else if (pipenum < R8A66597_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		return r8a66597_read(r8a66597, offset) & SQMON;
-	} else {
-		dev_err(r8a66597_to_dev(r8a66597),
-			"unexpect pipe num(%d)\n", pipenum);
-	}
-
-	return 0;
-}
-
-static u16 save_usb_toggle(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	return control_reg_sqmon(r8a66597, pipenum);
-}
-
-static void restore_usb_toggle(struct r8a66597 *r8a66597, u16 pipenum,
-			       u16 toggle)
-{
-	if (toggle)
-		control_reg_sqset(r8a66597, pipenum);
-	else
-		control_reg_sqclr(r8a66597, pipenum);
-}
-
-static inline int get_buffer_size(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	u16 tmp;
-	int size;
-
-	if (pipenum == 0) {
-		tmp = r8a66597_read(r8a66597, DCPCFG);
-		if ((tmp & R8A66597_CNTMD) != 0)
-			size = 256;
-		else {
-			tmp = r8a66597_read(r8a66597, DCPMAXP);
-			size = tmp & MAXP;
-		}
-	} else {
-		r8a66597_write(r8a66597, pipenum, PIPESEL);
-		tmp = r8a66597_read(r8a66597, PIPECFG);
-		if ((tmp & R8A66597_CNTMD) != 0) {
-			tmp = r8a66597_read(r8a66597, PIPEBUF);
-			size = ((tmp >> 10) + 1) * 64;
-		} else {
-			tmp = r8a66597_read(r8a66597, PIPEMAXP);
-			size = tmp & MXPS;
-		}
-	}
-
-	return size;
-}
-
-static inline unsigned short mbw_value(struct r8a66597 *r8a66597)
-{
-	if (r8a66597->pdata->on_chip)
-		return MBW_32;
-	else
-		return MBW_16;
-}
-
-static void r8a66597_change_curpipe(struct r8a66597 *r8a66597, u16 pipenum,
-				    u16 isel, u16 fifosel)
-{
-	u16 tmp, mask, loop;
-	int i = 0;
-
-	if (!pipenum) {
-		mask = ISEL | CURPIPE;
-		loop = isel;
-	} else {
-		mask = CURPIPE;
-		loop = pipenum;
-	}
-	r8a66597_mdfy(r8a66597, loop, mask, fifosel);
-
-	do {
-		tmp = r8a66597_read(r8a66597, fifosel);
-		if (i++ > 1000000) {
-			dev_err(r8a66597_to_dev(r8a66597),
-				"r8a66597: register%x, loop %x "
-				"is timeout\n", fifosel, loop);
-			break;
-		}
-		ndelay(1);
-	} while ((tmp & mask) != loop);
-}
-
-static inline void pipe_change(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	struct r8a66597_ep *ep = r8a66597->pipenum2ep[pipenum];
-
-	if (ep->use_dma)
-		r8a66597_bclr(r8a66597, DREQE, ep->fifosel);
-
-	r8a66597_mdfy(r8a66597, pipenum, CURPIPE, ep->fifosel);
-
-	ndelay(450);
-
-	if (r8a66597_is_sudmac(r8a66597) && ep->use_dma)
-		r8a66597_bclr(r8a66597, mbw_value(r8a66597), ep->fifosel);
-	else
-		r8a66597_bset(r8a66597, mbw_value(r8a66597), ep->fifosel);
-
-	if (ep->use_dma)
-		r8a66597_bset(r8a66597, DREQE, ep->fifosel);
-}
-
-static int pipe_buffer_setting(struct r8a66597 *r8a66597,
-		struct r8a66597_pipe_info *info)
-{
-	u16 bufnum = 0, buf_bsize = 0;
-	u16 pipecfg = 0;
-
-	if (info->pipe == 0)
-		return -EINVAL;
-
-	r8a66597_write(r8a66597, info->pipe, PIPESEL);
-
-	if (info->dir_in)
-		pipecfg |= R8A66597_DIR;
-	pipecfg |= info->type;
-	pipecfg |= info->epnum;
-	switch (info->type) {
-	case R8A66597_INT:
-		bufnum = 4 + (info->pipe - R8A66597_BASE_PIPENUM_INT);
-		buf_bsize = 0;
-		break;
-	case R8A66597_BULK:
-		/* isochronous pipes may be used as bulk pipes */
-		if (info->pipe >= R8A66597_BASE_PIPENUM_BULK)
-			bufnum = info->pipe - R8A66597_BASE_PIPENUM_BULK;
-		else
-			bufnum = info->pipe - R8A66597_BASE_PIPENUM_ISOC;
-
-		bufnum = R8A66597_BASE_BUFNUM + (bufnum * 16);
-		buf_bsize = 7;
-		pipecfg |= R8A66597_DBLB;
-		if (!info->dir_in)
-			pipecfg |= R8A66597_SHTNAK;
-		break;
-	case R8A66597_ISO:
-		bufnum = R8A66597_BASE_BUFNUM +
-			 (info->pipe - R8A66597_BASE_PIPENUM_ISOC) * 16;
-		buf_bsize = 7;
-		break;
-	}
-
-	if (buf_bsize && ((bufnum + 16) >= R8A66597_MAX_BUFNUM)) {
-		pr_err("r8a66597 pipe memory is insufficient\n");
-		return -ENOMEM;
-	}
-
-	r8a66597_write(r8a66597, pipecfg, PIPECFG);
-	r8a66597_write(r8a66597, (buf_bsize << 10) | (bufnum), PIPEBUF);
-	r8a66597_write(r8a66597, info->maxpacket, PIPEMAXP);
-	if (info->interval)
-		info->interval--;
-	r8a66597_write(r8a66597, info->interval, PIPEPERI);
-
-	return 0;
-}
-
-static void pipe_buffer_release(struct r8a66597 *r8a66597,
-				struct r8a66597_pipe_info *info)
-{
-	if (info->pipe == 0)
-		return;
-
-	if (is_bulk_pipe(info->pipe)) {
-		r8a66597->bulk--;
-	} else if (is_interrupt_pipe(info->pipe)) {
-		r8a66597->interrupt--;
-	} else if (is_isoc_pipe(info->pipe)) {
-		r8a66597->isochronous--;
-		if (info->type == R8A66597_BULK)
-			r8a66597->bulk--;
-	} else {
-		dev_err(r8a66597_to_dev(r8a66597),
-			"ep_release: unexpect pipenum (%d)\n", info->pipe);
-	}
-}
-
-static void pipe_initialize(struct r8a66597_ep *ep)
-{
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-
-	r8a66597_mdfy(r8a66597, 0, CURPIPE, ep->fifosel);
-
-	r8a66597_write(r8a66597, ACLRM, ep->pipectr);
-	r8a66597_write(r8a66597, 0, ep->pipectr);
-	r8a66597_write(r8a66597, SQCLR, ep->pipectr);
-	if (ep->use_dma) {
-		r8a66597_mdfy(r8a66597, ep->pipenum, CURPIPE, ep->fifosel);
-
-		ndelay(450);
-
-		r8a66597_bset(r8a66597, mbw_value(r8a66597), ep->fifosel);
-	}
-}
-
-static void r8a66597_ep_setting(struct r8a66597 *r8a66597,
-				struct r8a66597_ep *ep,
-				const struct usb_endpoint_descriptor *desc,
-				u16 pipenum, int dma)
-{
-	ep->use_dma = 0;
-	ep->fifoaddr = CFIFO;
-	ep->fifosel = CFIFOSEL;
-	ep->fifoctr = CFIFOCTR;
-
-	ep->pipectr = get_pipectr_addr(pipenum);
-	if (is_bulk_pipe(pipenum) || is_isoc_pipe(pipenum)) {
-		ep->pipetre = get_pipetre_addr(pipenum);
-		ep->pipetrn = get_pipetrn_addr(pipenum);
-	} else {
-		ep->pipetre = 0;
-		ep->pipetrn = 0;
-	}
-	ep->pipenum = pipenum;
-	ep->ep.maxpacket = usb_endpoint_maxp(desc);
-	r8a66597->pipenum2ep[pipenum] = ep;
-	r8a66597->epaddr2ep[desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK]
-		= ep;
-	INIT_LIST_HEAD(&ep->queue);
-}
-
-static void r8a66597_ep_release(struct r8a66597_ep *ep)
-{
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-	u16 pipenum = ep->pipenum;
-
-	if (pipenum == 0)
-		return;
-
-	if (ep->use_dma)
-		r8a66597->num_dma--;
-	ep->pipenum = 0;
-	ep->busy = 0;
-	ep->use_dma = 0;
-}
-
-static int alloc_pipe_config(struct r8a66597_ep *ep,
-		const struct usb_endpoint_descriptor *desc)
-{
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-	struct r8a66597_pipe_info info;
-	int dma = 0;
-	unsigned char *counter;
-	int ret;
-
-	ep->ep.desc = desc;
-
-	if (ep->pipenum)	/* already allocated pipe  */
-		return 0;
-
-	switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
-	case USB_ENDPOINT_XFER_BULK:
-		if (r8a66597->bulk >= R8A66597_MAX_NUM_BULK) {
-			if (r8a66597->isochronous >= R8A66597_MAX_NUM_ISOC) {
-				dev_err(r8a66597_to_dev(r8a66597),
-					"bulk pipe is insufficient\n");
-				return -ENODEV;
-			} else {
-				info.pipe = R8A66597_BASE_PIPENUM_ISOC
-						+ r8a66597->isochronous;
-				counter = &r8a66597->isochronous;
-			}
-		} else {
-			info.pipe = R8A66597_BASE_PIPENUM_BULK + r8a66597->bulk;
-			counter = &r8a66597->bulk;
-		}
-		info.type = R8A66597_BULK;
-		dma = 1;
-		break;
-	case USB_ENDPOINT_XFER_INT:
-		if (r8a66597->interrupt >= R8A66597_MAX_NUM_INT) {
-			dev_err(r8a66597_to_dev(r8a66597),
-				"interrupt pipe is insufficient\n");
-			return -ENODEV;
-		}
-		info.pipe = R8A66597_BASE_PIPENUM_INT + r8a66597->interrupt;
-		info.type = R8A66597_INT;
-		counter = &r8a66597->interrupt;
-		break;
-	case USB_ENDPOINT_XFER_ISOC:
-		if (r8a66597->isochronous >= R8A66597_MAX_NUM_ISOC) {
-			dev_err(r8a66597_to_dev(r8a66597),
-				"isochronous pipe is insufficient\n");
-			return -ENODEV;
-		}
-		info.pipe = R8A66597_BASE_PIPENUM_ISOC + r8a66597->isochronous;
-		info.type = R8A66597_ISO;
-		counter = &r8a66597->isochronous;
-		break;
-	default:
-		dev_err(r8a66597_to_dev(r8a66597), "unexpect xfer type\n");
-		return -EINVAL;
-	}
-	ep->type = info.type;
-
-	info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-	info.maxpacket = usb_endpoint_maxp(desc);
-	info.interval = desc->bInterval;
-	if (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
-		info.dir_in = 1;
-	else
-		info.dir_in = 0;
-
-	ret = pipe_buffer_setting(r8a66597, &info);
-	if (ret < 0) {
-		dev_err(r8a66597_to_dev(r8a66597),
-			"pipe_buffer_setting fail\n");
-		return ret;
-	}
-
-	(*counter)++;
-	if ((counter == &r8a66597->isochronous) && info.type == R8A66597_BULK)
-		r8a66597->bulk++;
-
-	r8a66597_ep_setting(r8a66597, ep, desc, info.pipe, dma);
-	pipe_initialize(ep);
-
-	return 0;
-}
-
-static int free_pipe_config(struct r8a66597_ep *ep)
-{
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-	struct r8a66597_pipe_info info;
-
-	info.pipe = ep->pipenum;
-	info.type = ep->type;
-	pipe_buffer_release(r8a66597, &info);
-	r8a66597_ep_release(ep);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static void pipe_irq_enable(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	enable_irq_ready(r8a66597, pipenum);
-	enable_irq_nrdy(r8a66597, pipenum);
-}
-
-static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
-{
-	disable_irq_ready(r8a66597, pipenum);
-	disable_irq_nrdy(r8a66597, pipenum);
-}
-
-/* if complete is true, gadget driver complete function is not call */
-static void control_end(struct r8a66597 *r8a66597, unsigned ccpl)
-{
-	r8a66597->ep[0].internal_ccpl = ccpl;
-	pipe_start(r8a66597, 0);
-	r8a66597_bset(r8a66597, CCPL, DCPCTR);
-}
-
-static void start_ep0_write(struct r8a66597_ep *ep,
-				struct r8a66597_request *req)
-{
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-
-	pipe_change(r8a66597, ep->pipenum);
-	r8a66597_mdfy(r8a66597, ISEL, (ISEL | CURPIPE), CFIFOSEL);
-	r8a66597_write(r8a66597, BCLR, ep->fifoctr);
-	if (req->req.length == 0) {
-		r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
-		pipe_start(r8a66597, 0);
-		transfer_complete(ep, req, 0);
-	} else {
-		r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
-		irq_ep0_write(ep, req);
-	}
-}
-
-static void disable_fifosel(struct r8a66597 *r8a66597, u16 pipenum,
-			    u16 fifosel)
-{
-	u16 tmp;
-
-	tmp = r8a66597_read(r8a66597, fifosel) & CURPIPE;
-	if (tmp == pipenum)
-		r8a66597_change_curpipe(r8a66597, 0, 0, fifosel);
-}
-
-static void change_bfre_mode(struct r8a66597 *r8a66597, u16 pipenum,
-			     int enable)
-{
-	struct r8a66597_ep *ep = r8a66597->pipenum2ep[pipenum];
-	u16 tmp, toggle;
-
-	/* check current BFRE bit */
-	r8a66597_write(r8a66597, pipenum, PIPESEL);
-	tmp = r8a66597_read(r8a66597, PIPECFG) & R8A66597_BFRE;
-	if ((enable && tmp) || (!enable && !tmp))
-		return;
-
-	/* change BFRE bit */
-	pipe_stop(r8a66597, pipenum);
-	disable_fifosel(r8a66597, pipenum, CFIFOSEL);
-	disable_fifosel(r8a66597, pipenum, D0FIFOSEL);
-	disable_fifosel(r8a66597, pipenum, D1FIFOSEL);
-
-	toggle = save_usb_toggle(r8a66597, pipenum);
-
-	r8a66597_write(r8a66597, pipenum, PIPESEL);
-	if (enable)
-		r8a66597_bset(r8a66597, R8A66597_BFRE, PIPECFG);
-	else
-		r8a66597_bclr(r8a66597, R8A66597_BFRE, PIPECFG);
-
-	/* initialize for internal BFRE flag */
-	r8a66597_bset(r8a66597, ACLRM, ep->pipectr);
-	r8a66597_bclr(r8a66597, ACLRM, ep->pipectr);
-
-	restore_usb_toggle(r8a66597, pipenum, toggle);
-}
-
-static int sudmac_alloc_channel(struct r8a66597 *r8a66597,
-				struct r8a66597_ep *ep,
-				struct r8a66597_request *req)
-{
-	struct r8a66597_dma *dma;
-
-	if (!r8a66597_is_sudmac(r8a66597))
-		return -ENODEV;
-
-	/* Check transfer type */
-	if (!is_bulk_pipe(ep->pipenum))
-		return -EIO;
-
-	if (r8a66597->dma.used)
-		return -EBUSY;
-
-	/* set SUDMAC parameters */
-	dma = &r8a66597->dma;
-	dma->used = 1;
-	if (ep->ep.desc->bEndpointAddress & USB_DIR_IN) {
-		dma->dir = 1;
-	} else {
-		dma->dir = 0;
-		change_bfre_mode(r8a66597, ep->pipenum, 1);
-	}
-
-	/* set r8a66597_ep paramters */
-	ep->use_dma = 1;
-	ep->dma = dma;
-	ep->fifoaddr = D0FIFO;
-	ep->fifosel = D0FIFOSEL;
-	ep->fifoctr = D0FIFOCTR;
-
-	/* dma mapping */
-	return usb_gadget_map_request(&r8a66597->gadget, &req->req, dma->dir);
-}
-
-static void sudmac_free_channel(struct r8a66597 *r8a66597,
-				struct r8a66597_ep *ep,
-				struct r8a66597_request *req)
-{
-	if (!r8a66597_is_sudmac(r8a66597))
-		return;
-
-	usb_gadget_unmap_request(&r8a66597->gadget, &req->req, ep->dma->dir);
-
-	r8a66597_bclr(r8a66597, DREQE, ep->fifosel);
-	r8a66597_change_curpipe(r8a66597, 0, 0, ep->fifosel);
-
-	ep->dma->used = 0;
-	ep->use_dma = 0;
-	ep->fifoaddr = CFIFO;
-	ep->fifosel = CFIFOSEL;
-	ep->fifoctr = CFIFOCTR;
-}
-
-static void sudmac_start(struct r8a66597 *r8a66597, struct r8a66597_ep *ep,
-			 struct r8a66597_request *req)
-{
-	BUG_ON(req->req.length == 0);
-
-	r8a66597_sudmac_write(r8a66597, LBA_WAIT, CH0CFG);
-	r8a66597_sudmac_write(r8a66597, req->req.dma, CH0BA);
-	r8a66597_sudmac_write(r8a66597, req->req.length, CH0BBC);
-	r8a66597_sudmac_write(r8a66597, CH0ENDE, DINTCTRL);
-
-	r8a66597_sudmac_write(r8a66597, DEN, CH0DEN);
-}
-
-static void start_packet_write(struct r8a66597_ep *ep,
-				struct r8a66597_request *req)
-{
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-	u16 tmp;
-
-	pipe_change(r8a66597, ep->pipenum);
-	disable_irq_empty(r8a66597, ep->pipenum);
-	pipe_start(r8a66597, ep->pipenum);
-
-	if (req->req.length == 0) {
-		transfer_complete(ep, req, 0);
-	} else {
-		r8a66597_write(r8a66597, ~(1 << ep->pipenum), BRDYSTS);
-		if (sudmac_alloc_channel(r8a66597, ep, req) < 0) {
-			/* PIO mode */
-			pipe_change(r8a66597, ep->pipenum);
-			disable_irq_empty(r8a66597, ep->pipenum);
-			pipe_start(r8a66597, ep->pipenum);
-			tmp = r8a66597_read(r8a66597, ep->fifoctr);
-			if (unlikely((tmp & FRDY) == 0))
-				pipe_irq_enable(r8a66597, ep->pipenum);
-			else
-				irq_packet_write(ep, req);
-		} else {
-			/* DMA mode */
-			pipe_change(r8a66597, ep->pipenum);
-			disable_irq_nrdy(r8a66597, ep->pipenum);
-			pipe_start(r8a66597, ep->pipenum);
-			enable_irq_nrdy(r8a66597, ep->pipenum);
-			sudmac_start(r8a66597, ep, req);
-		}
-	}
-}
-
-static void start_packet_read(struct r8a66597_ep *ep,
-				struct r8a66597_request *req)
-{
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-	u16 pipenum = ep->pipenum;
-
-	if (ep->pipenum == 0) {
-		r8a66597_mdfy(r8a66597, 0, (ISEL | CURPIPE), CFIFOSEL);
-		r8a66597_write(r8a66597, BCLR, ep->fifoctr);
-		pipe_start(r8a66597, pipenum);
-		pipe_irq_enable(r8a66597, pipenum);
-	} else {
-		pipe_stop(r8a66597, pipenum);
-		if (ep->pipetre) {
-			enable_irq_nrdy(r8a66597, pipenum);
-			r8a66597_write(r8a66597, TRCLR, ep->pipetre);
-			r8a66597_write(r8a66597,
-				DIV_ROUND_UP(req->req.length, ep->ep.maxpacket),
-				ep->pipetrn);
-			r8a66597_bset(r8a66597, TRENB, ep->pipetre);
-		}
-
-		if (sudmac_alloc_channel(r8a66597, ep, req) < 0) {
-			/* PIO mode */
-			change_bfre_mode(r8a66597, ep->pipenum, 0);
-			pipe_start(r8a66597, pipenum);	/* trigger once */
-			pipe_irq_enable(r8a66597, pipenum);
-		} else {
-			pipe_change(r8a66597, pipenum);
-			sudmac_start(r8a66597, ep, req);
-			pipe_start(r8a66597, pipenum);	/* trigger once */
-		}
-	}
-}
-
-static void start_packet(struct r8a66597_ep *ep, struct r8a66597_request *req)
-{
-	if (ep->ep.desc->bEndpointAddress & USB_DIR_IN)
-		start_packet_write(ep, req);
-	else
-		start_packet_read(ep, req);
-}
-
-static void start_ep0(struct r8a66597_ep *ep, struct r8a66597_request *req)
-{
-	u16 ctsq;
-
-	ctsq = r8a66597_read(ep->r8a66597, INTSTS0) & CTSQ;
-
-	switch (ctsq) {
-	case CS_RDDS:
-		start_ep0_write(ep, req);
-		break;
-	case CS_WRDS:
-		start_packet_read(ep, req);
-		break;
-
-	case CS_WRND:
-		control_end(ep->r8a66597, 0);
-		break;
-	default:
-		dev_err(r8a66597_to_dev(ep->r8a66597),
-			"start_ep0: unexpect ctsq(%x)\n", ctsq);
-		break;
-	}
-}
-
-static void init_controller(struct r8a66597 *r8a66597)
-{
-	u16 vif = r8a66597->pdata->vif ? LDRV : 0;
-	u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
-	u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
-
-	if (r8a66597->pdata->on_chip) {
-		if (r8a66597->pdata->buswait)
-			r8a66597_write(r8a66597, r8a66597->pdata->buswait,
-					SYSCFG1);
-		else
-			r8a66597_write(r8a66597, 0x0f, SYSCFG1);
-		r8a66597_bset(r8a66597, HSE, SYSCFG0);
-
-		r8a66597_bclr(r8a66597, USBE, SYSCFG0);
-		r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
-		r8a66597_bset(r8a66597, USBE, SYSCFG0);
-
-		r8a66597_bset(r8a66597, SCKE, SYSCFG0);
-
-		r8a66597_bset(r8a66597, irq_sense, INTENB1);
-		r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR,
-				DMA0CFG);
-	} else {
-		r8a66597_bset(r8a66597, vif | endian, PINCFG);
-		r8a66597_bset(r8a66597, HSE, SYSCFG0);		/* High spd */
-		r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata),
-				XTAL, SYSCFG0);
-
-		r8a66597_bclr(r8a66597, USBE, SYSCFG0);
-		r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
-		r8a66597_bset(r8a66597, USBE, SYSCFG0);
-
-		r8a66597_bset(r8a66597, XCKE, SYSCFG0);
-
-		msleep(3);
-
-		r8a66597_bset(r8a66597, PLLC, SYSCFG0);
-
-		msleep(1);
-
-		r8a66597_bset(r8a66597, SCKE, SYSCFG0);
-
-		r8a66597_bset(r8a66597, irq_sense, INTENB1);
-		r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR,
-			       DMA0CFG);
-	}
-}
-
-static void disable_controller(struct r8a66597 *r8a66597)
-{
-	if (r8a66597->pdata->on_chip) {
-		r8a66597_bset(r8a66597, SCKE, SYSCFG0);
-		r8a66597_bclr(r8a66597, UTST, TESTMODE);
-
-		/* disable interrupts */
-		r8a66597_write(r8a66597, 0, INTENB0);
-		r8a66597_write(r8a66597, 0, INTENB1);
-		r8a66597_write(r8a66597, 0, BRDYENB);
-		r8a66597_write(r8a66597, 0, BEMPENB);
-		r8a66597_write(r8a66597, 0, NRDYENB);
-
-		/* clear status */
-		r8a66597_write(r8a66597, 0, BRDYSTS);
-		r8a66597_write(r8a66597, 0, NRDYSTS);
-		r8a66597_write(r8a66597, 0, BEMPSTS);
-
-		r8a66597_bclr(r8a66597, USBE, SYSCFG0);
-		r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
-
-	} else {
-		r8a66597_bclr(r8a66597, UTST, TESTMODE);
-		r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
-		udelay(1);
-		r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
-		udelay(1);
-		udelay(1);
-		r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
-	}
-}
-
-static void r8a66597_start_xclock(struct r8a66597 *r8a66597)
-{
-	u16 tmp;
-
-	if (!r8a66597->pdata->on_chip) {
-		tmp = r8a66597_read(r8a66597, SYSCFG0);
-		if (!(tmp & XCKE))
-			r8a66597_bset(r8a66597, XCKE, SYSCFG0);
-	}
-}
-
-static struct r8a66597_request *get_request_from_ep(struct r8a66597_ep *ep)
-{
-	return list_entry(ep->queue.next, struct r8a66597_request, queue);
-}
-
-/*-------------------------------------------------------------------------*/
-static void transfer_complete(struct r8a66597_ep *ep,
-		struct r8a66597_request *req, int status)
-__releases(r8a66597->lock)
-__acquires(r8a66597->lock)
-{
-	int restart = 0;
-
-	if (unlikely(ep->pipenum == 0)) {
-		if (ep->internal_ccpl) {
-			ep->internal_ccpl = 0;
-			return;
-		}
-	}
-
-	list_del_init(&req->queue);
-	if (ep->r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
-		req->req.status = -ESHUTDOWN;
-	else
-		req->req.status = status;
-
-	if (!list_empty(&ep->queue))
-		restart = 1;
-
-	if (ep->use_dma)
-		sudmac_free_channel(ep->r8a66597, ep, req);
-
-	spin_unlock(&ep->r8a66597->lock);
-	req->req.complete(&ep->ep, &req->req);
-	spin_lock(&ep->r8a66597->lock);
-
-	if (restart) {
-		req = get_request_from_ep(ep);
-		if (ep->ep.desc)
-			start_packet(ep, req);
-	}
-}
-
-static void irq_ep0_write(struct r8a66597_ep *ep, struct r8a66597_request *req)
-{
-	int i;
-	u16 tmp;
-	unsigned bufsize;
-	size_t size;
-	void *buf;
-	u16 pipenum = ep->pipenum;
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-
-	pipe_change(r8a66597, pipenum);
-	r8a66597_bset(r8a66597, ISEL, ep->fifosel);
-
-	i = 0;
-	do {
-		tmp = r8a66597_read(r8a66597, ep->fifoctr);
-		if (i++ > 100000) {
-			dev_err(r8a66597_to_dev(r8a66597),
-				"pipe0 is busy. maybe cpu i/o bus "
-				"conflict. please power off this controller.");
-			return;
-		}
-		ndelay(1);
-	} while ((tmp & FRDY) == 0);
-
-	/* prepare parameters */
-	bufsize = get_buffer_size(r8a66597, pipenum);
-	buf = req->req.buf + req->req.actual;
-	size = min(bufsize, req->req.length - req->req.actual);
-
-	/* write fifo */
-	if (req->req.buf) {
-		if (size > 0)
-			r8a66597_write_fifo(r8a66597, ep, buf, size);
-		if ((size == 0) || ((size % ep->ep.maxpacket) != 0))
-			r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
-	}
-
-	/* update parameters */
-	req->req.actual += size;
-
-	/* check transfer finish */
-	if ((!req->req.zero && (req->req.actual == req->req.length))
-			|| (size % ep->ep.maxpacket)
-			|| (size == 0)) {
-		disable_irq_ready(r8a66597, pipenum);
-		disable_irq_empty(r8a66597, pipenum);
-	} else {
-		disable_irq_ready(r8a66597, pipenum);
-		enable_irq_empty(r8a66597, pipenum);
-	}
-	pipe_start(r8a66597, pipenum);
-}
-
-static void irq_packet_write(struct r8a66597_ep *ep,
-				struct r8a66597_request *req)
-{
-	u16 tmp;
-	unsigned bufsize;
-	size_t size;
-	void *buf;
-	u16 pipenum = ep->pipenum;
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-
-	pipe_change(r8a66597, pipenum);
-	tmp = r8a66597_read(r8a66597, ep->fifoctr);
-	if (unlikely((tmp & FRDY) == 0)) {
-		pipe_stop(r8a66597, pipenum);
-		pipe_irq_disable(r8a66597, pipenum);
-		dev_err(r8a66597_to_dev(r8a66597),
-			"write fifo not ready. pipnum=%d\n", pipenum);
-		return;
-	}
-
-	/* prepare parameters */
-	bufsize = get_buffer_size(r8a66597, pipenum);
-	buf = req->req.buf + req->req.actual;
-	size = min(bufsize, req->req.length - req->req.actual);
-
-	/* write fifo */
-	if (req->req.buf) {
-		r8a66597_write_fifo(r8a66597, ep, buf, size);
-		if ((size == 0)
-				|| ((size % ep->ep.maxpacket) != 0)
-				|| ((bufsize != ep->ep.maxpacket)
-					&& (bufsize > size)))
-			r8a66597_bset(r8a66597, BVAL, ep->fifoctr);
-	}
-
-	/* update parameters */
-	req->req.actual += size;
-	/* check transfer finish */
-	if ((!req->req.zero && (req->req.actual == req->req.length))
-			|| (size % ep->ep.maxpacket)
-			|| (size == 0)) {
-		disable_irq_ready(r8a66597, pipenum);
-		enable_irq_empty(r8a66597, pipenum);
-	} else {
-		disable_irq_empty(r8a66597, pipenum);
-		pipe_irq_enable(r8a66597, pipenum);
-	}
-}
-
-static void irq_packet_read(struct r8a66597_ep *ep,
-				struct r8a66597_request *req)
-{
-	u16 tmp;
-	int rcv_len, bufsize, req_len;
-	int size;
-	void *buf;
-	u16 pipenum = ep->pipenum;
-	struct r8a66597 *r8a66597 = ep->r8a66597;
-	int finish = 0;
-
-	pipe_change(r8a66597, pipenum);
-	tmp = r8a66597_read(r8a66597, ep->fifoctr);
-	if (unlikely((tmp & FRDY) == 0)) {
-		req->req.status = -EPIPE;
-		pipe_stop(r8a66597, pipenum);
-		pipe_irq_disable(r8a66597, pipenum);
-		dev_err(r8a66597_to_dev(r8a66597), "read fifo not ready");
-		return;
-	}
-
-	/* prepare parameters */
-	rcv_len = tmp & DTLN;
-	bufsize = get_buffer_size(r8a66597, pipenum);
-
-	buf = req->req.buf + req->req.actual;
-	req_len = req->req.length - req->req.actual;
-	if (rcv_len < bufsize)
-		size = min(rcv_len, req_len);
-	else
-		size = min(bufsize, req_len);
-
-	/* update parameters */
-	req->req.actual += size;
-
-	/* check transfer finish */
-	if ((!req->req.zero && (req->req.actual == req->req.length))
-			|| (size % ep->ep.maxpacket)
-			|| (size == 0)) {
-		pipe_stop(r8a66597, pipenum);
-		pipe_irq_disable(r8a66597, pipenum);
-		finish = 1;
-	}
-
-	/* read fifo */
-	if (req->req.buf) {
-		if (size == 0)
-			r8a66597_write(r8a66597, BCLR, ep->fifoctr);
-		else
-			r8a66597_read_fifo(r8a66597, ep->fifoaddr, buf, size);
-
-	}
-
-	if ((ep->pipenum != 0) && finish)
-		transfer_complete(ep, req, 0);
-}
-
-static void irq_pipe_ready(struct r8a66597 *r8a66597, u16 status, u16 enb)
-{
-	u16 check;
-	u16 pipenum;
-	struct r8a66597_ep *ep;
-	struct r8a66597_request *req;
-
-	if ((status & BRDY0) && (enb & BRDY0)) {
-		r8a66597_write(r8a66597, ~BRDY0, BRDYSTS);
-		r8a66597_mdfy(r8a66597, 0, CURPIPE, CFIFOSEL);
-
-		ep = &r8a66597->ep[0];
-		req = get_request_from_ep(ep);
-		irq_packet_read(ep, req);
-	} else {
-		for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
-			check = 1 << pipenum;
-			if ((status & check) && (enb & check)) {
-				r8a66597_write(r8a66597, ~check, BRDYSTS);
-				ep = r8a66597->pipenum2ep[pipenum];
-				req = get_request_from_ep(ep);
-				if (ep->ep.desc->bEndpointAddress & USB_DIR_IN)
-					irq_packet_write(ep, req);
-				else
-					irq_packet_read(ep, req);
-			}
-		}
-	}
-}
-
-static void irq_pipe_empty(struct r8a66597 *r8a66597, u16 status, u16 enb)
-{
-	u16 tmp;
-	u16 check;
-	u16 pipenum;
-	struct r8a66597_ep *ep;
-	struct r8a66597_request *req;
-
-	if ((status & BEMP0) && (enb & BEMP0)) {
-		r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
-
-		ep = &r8a66597->ep[0];
-		req = get_request_from_ep(ep);
-		irq_ep0_write(ep, req);
-	} else {
-		for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
-			check = 1 << pipenum;
-			if ((status & check) && (enb & check)) {
-				r8a66597_write(r8a66597, ~check, BEMPSTS);
-				tmp = control_reg_get(r8a66597, pipenum);
-				if ((tmp & INBUFM) == 0) {
-					disable_irq_empty(r8a66597, pipenum);
-					pipe_irq_disable(r8a66597, pipenum);
-					pipe_stop(r8a66597, pipenum);
-					ep = r8a66597->pipenum2ep[pipenum];
-					req = get_request_from_ep(ep);
-					if (!list_empty(&ep->queue))
-						transfer_complete(ep, req, 0);
-				}
-			}
-		}
-	}
-}
-
-static void get_status(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
-__releases(r8a66597->lock)
-__acquires(r8a66597->lock)
-{
-	struct r8a66597_ep *ep;
-	u16 pid;
-	u16 status = 0;
-	u16 w_index = le16_to_cpu(ctrl->wIndex);
-
-	switch (ctrl->bRequestType & USB_RECIP_MASK) {
-	case USB_RECIP_DEVICE:
-		status = r8a66597->device_status;
-		break;
-	case USB_RECIP_INTERFACE:
-		status = 0;
-		break;
-	case USB_RECIP_ENDPOINT:
-		ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
-		pid = control_reg_get_pid(r8a66597, ep->pipenum);
-		if (pid == PID_STALL)
-			status = 1 << USB_ENDPOINT_HALT;
-		else
-			status = 0;
-		break;
-	default:
-		pipe_stall(r8a66597, 0);
-		return;		/* exit */
-	}
-
-	r8a66597->ep0_data = cpu_to_le16(status);
-	r8a66597->ep0_req->buf = &r8a66597->ep0_data;
-	r8a66597->ep0_req->length = 2;
-	/* AV: what happens if we get called again before that gets through? */
-	spin_unlock(&r8a66597->lock);
-	r8a66597_queue(r8a66597->gadget.ep0, r8a66597->ep0_req, GFP_KERNEL);
-	spin_lock(&r8a66597->lock);
-}
-
-static void clear_feature(struct r8a66597 *r8a66597,
-				struct usb_ctrlrequest *ctrl)
-{
-	switch (ctrl->bRequestType & USB_RECIP_MASK) {
-	case USB_RECIP_DEVICE:
-		control_end(r8a66597, 1);
-		break;
-	case USB_RECIP_INTERFACE:
-		control_end(r8a66597, 1);
-		break;
-	case USB_RECIP_ENDPOINT: {
-		struct r8a66597_ep *ep;
-		struct r8a66597_request *req;
-		u16 w_index = le16_to_cpu(ctrl->wIndex);
-
-		ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
-		if (!ep->wedge) {
-			pipe_stop(r8a66597, ep->pipenum);
-			control_reg_sqclr(r8a66597, ep->pipenum);
-			spin_unlock(&r8a66597->lock);
-			usb_ep_clear_halt(&ep->ep);
-			spin_lock(&r8a66597->lock);
-		}
-
-		control_end(r8a66597, 1);
-
-		req = get_request_from_ep(ep);
-		if (ep->busy) {
-			ep->busy = 0;
-			if (list_empty(&ep->queue))
-				break;
-			start_packet(ep, req);
-		} else if (!list_empty(&ep->queue))
-			pipe_start(r8a66597, ep->pipenum);
-		}
-		break;
-	default:
-		pipe_stall(r8a66597, 0);
-		break;
-	}
-}
-
-static void set_feature(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
-{
-	u16 tmp;
-	int timeout = 3000;
-
-	switch (ctrl->bRequestType & USB_RECIP_MASK) {
-	case USB_RECIP_DEVICE:
-		switch (le16_to_cpu(ctrl->wValue)) {
-		case USB_DEVICE_TEST_MODE:
-			control_end(r8a66597, 1);
-			/* Wait for the completion of status stage */
-			do {
-				tmp = r8a66597_read(r8a66597, INTSTS0) & CTSQ;
-				udelay(1);
-			} while (tmp != CS_IDST || timeout-- > 0);
-
-			if (tmp == CS_IDST)
-				r8a66597_bset(r8a66597,
-					      le16_to_cpu(ctrl->wIndex >> 8),
-					      TESTMODE);
-			break;
-		default:
-			pipe_stall(r8a66597, 0);
-			break;
-		}
-		break;
-	case USB_RECIP_INTERFACE:
-		control_end(r8a66597, 1);
-		break;
-	case USB_RECIP_ENDPOINT: {
-		struct r8a66597_ep *ep;
-		u16 w_index = le16_to_cpu(ctrl->wIndex);
-
-		ep = r8a66597->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
-		pipe_stall(r8a66597, ep->pipenum);
-
-		control_end(r8a66597, 1);
-		}
-		break;
-	default:
-		pipe_stall(r8a66597, 0);
-		break;
-	}
-}
-
-/* if return value is true, call class driver's setup() */
-static int setup_packet(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl)
-{
-	u16 *p = (u16 *)ctrl;
-	unsigned long offset = USBREQ;
-	int i, ret = 0;
-
-	/* read fifo */
-	r8a66597_write(r8a66597, ~VALID, INTSTS0);
-
-	for (i = 0; i < 4; i++)
-		p[i] = r8a66597_read(r8a66597, offset + i*2);
-
-	/* check request */
-	if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
-		switch (ctrl->bRequest) {
-		case USB_REQ_GET_STATUS:
-			get_status(r8a66597, ctrl);
-			break;
-		case USB_REQ_CLEAR_FEATURE:
-			clear_feature(r8a66597, ctrl);
-			break;
-		case USB_REQ_SET_FEATURE:
-			set_feature(r8a66597, ctrl);
-			break;
-		default:
-			ret = 1;
-			break;
-		}
-	} else
-		ret = 1;
-	return ret;
-}
-
-static void r8a66597_update_usb_speed(struct r8a66597 *r8a66597)
-{
-	u16 speed = get_usb_speed(r8a66597);
-
-	switch (speed) {
-	case HSMODE:
-		r8a66597->gadget.speed = USB_SPEED_HIGH;
-		break;
-	case FSMODE:
-		r8a66597->gadget.speed = USB_SPEED_FULL;
-		break;
-	default:
-		r8a66597->gadget.speed = USB_SPEED_UNKNOWN;
-		dev_err(r8a66597_to_dev(r8a66597), "USB speed unknown\n");
-	}
-}
-
-static void irq_device_state(struct r8a66597 *r8a66597)
-{
-	u16 dvsq;
-
-	dvsq = r8a66597_read(r8a66597, INTSTS0) & DVSQ;
-	r8a66597_write(r8a66597, ~DVST, INTSTS0);
-
-	if (dvsq == DS_DFLT) {
-		/* bus reset */
-		spin_unlock(&r8a66597->lock);
-		r8a66597->driver->disconnect(&r8a66597->gadget);
-		spin_lock(&r8a66597->lock);
-		r8a66597_update_usb_speed(r8a66597);
-	}
-	if (r8a66597->old_dvsq == DS_CNFG && dvsq != DS_CNFG)
-		r8a66597_update_usb_speed(r8a66597);
-	if ((dvsq == DS_CNFG || dvsq == DS_ADDS)
-			&& r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
-		r8a66597_update_usb_speed(r8a66597);
-
-	r8a66597->old_dvsq = dvsq;
-}
-
-static void irq_control_stage(struct r8a66597 *r8a66597)
-__releases(r8a66597->lock)
-__acquires(r8a66597->lock)
-{
-	struct usb_ctrlrequest ctrl;
-	u16 ctsq;
-
-	ctsq = r8a66597_read(r8a66597, INTSTS0) & CTSQ;
-	r8a66597_write(r8a66597, ~CTRT, INTSTS0);
-
-	switch (ctsq) {
-	case CS_IDST: {
-		struct r8a66597_ep *ep;
-		struct r8a66597_request *req;
-		ep = &r8a66597->ep[0];
-		req = get_request_from_ep(ep);
-		transfer_complete(ep, req, 0);
-		}
-		break;
-
-	case CS_RDDS:
-	case CS_WRDS:
-	case CS_WRND:
-		if (setup_packet(r8a66597, &ctrl)) {
-			spin_unlock(&r8a66597->lock);
-			if (r8a66597->driver->setup(&r8a66597->gadget, &ctrl)
-				< 0)
-				pipe_stall(r8a66597, 0);
-			spin_lock(&r8a66597->lock);
-		}
-		break;
-	case CS_RDSS:
-	case CS_WRSS:
-		control_end(r8a66597, 0);
-		break;
-	default:
-		dev_err(r8a66597_to_dev(r8a66597),
-			"ctrl_stage: unexpect ctsq(%x)\n", ctsq);
-		break;
-	}
-}
-
-static void sudmac_finish(struct r8a66597 *r8a66597, struct r8a66597_ep *ep)
-{
-	u16 pipenum;
-	struct r8a66597_request *req;
-	u32 len;
-	int i = 0;
-
-	pipenum = ep->pipenum;
-	pipe_change(r8a66597, pipenum);
-
-	while (!(r8a66597_read(r8a66597, ep->fifoctr) & FRDY)) {
-		udelay(1);
-		if (unlikely(i++ >= 10000)) {	/* timeout = 10 msec */
-			dev_err(r8a66597_to_dev(r8a66597),
-				"%s: FRDY was not set (%d)\n",
-				__func__, pipenum);
-			return;
-		}
-	}
-
-	r8a66597_bset(r8a66597, BCLR, ep->fifoctr);
-	req = get_request_from_ep(ep);
-
-	/* prepare parameters */
-	len = r8a66597_sudmac_read(r8a66597, CH0CBC);
-	req->req.actual += len;
-
-	/* clear */
-	r8a66597_sudmac_write(r8a66597, CH0STCLR, DSTSCLR);
-
-	/* check transfer finish */
-	if ((!req->req.zero && (req->req.actual == req->req.length))
-			|| (len % ep->ep.maxpacket)) {
-		if (ep->dma->dir) {
-			disable_irq_ready(r8a66597, pipenum);
-			enable_irq_empty(r8a66597, pipenum);
-		} else {
-			/* Clear the interrupt flag for next transfer */
-			r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
-			transfer_complete(ep, req, 0);
-		}
-	}
-}
-
-static void r8a66597_sudmac_irq(struct r8a66597 *r8a66597)
-{
-	u32 irqsts;
-	struct r8a66597_ep *ep;
-	u16 pipenum;
-
-	irqsts = r8a66597_sudmac_read(r8a66597, DINTSTS);
-	if (irqsts & CH0ENDS) {
-		r8a66597_sudmac_write(r8a66597, CH0ENDC, DINTSTSCLR);
-		pipenum = (r8a66597_read(r8a66597, D0FIFOSEL) & CURPIPE);
-		ep = r8a66597->pipenum2ep[pipenum];
-		sudmac_finish(r8a66597, ep);
-	}
-}
-
-static irqreturn_t r8a66597_irq(int irq, void *_r8a66597)
-{
-	struct r8a66597 *r8a66597 = _r8a66597;
-	u16 intsts0;
-	u16 intenb0;
-	u16 brdysts, nrdysts, bempsts;
-	u16 brdyenb, nrdyenb, bempenb;
-	u16 savepipe;
-	u16 mask0;
-
-	spin_lock(&r8a66597->lock);
-
-	if (r8a66597_is_sudmac(r8a66597))
-		r8a66597_sudmac_irq(r8a66597);
-
-	intsts0 = r8a66597_read(r8a66597, INTSTS0);
-	intenb0 = r8a66597_read(r8a66597, INTENB0);
-
-	savepipe = r8a66597_read(r8a66597, CFIFOSEL);
-
-	mask0 = intsts0 & intenb0;
-	if (mask0) {
-		brdysts = r8a66597_read(r8a66597, BRDYSTS);
-		nrdysts = r8a66597_read(r8a66597, NRDYSTS);
-		bempsts = r8a66597_read(r8a66597, BEMPSTS);
-		brdyenb = r8a66597_read(r8a66597, BRDYENB);
-		nrdyenb = r8a66597_read(r8a66597, NRDYENB);
-		bempenb = r8a66597_read(r8a66597, BEMPENB);
-
-		if (mask0 & VBINT) {
-			r8a66597_write(r8a66597,  0xffff & ~VBINT,
-					INTSTS0);
-			r8a66597_start_xclock(r8a66597);
-
-			/* start vbus sampling */
-			r8a66597->old_vbus = r8a66597_read(r8a66597, INTSTS0)
-					& VBSTS;
-			r8a66597->scount = R8A66597_MAX_SAMPLING;
-
-			mod_timer(&r8a66597->timer,
-					jiffies + msecs_to_jiffies(50));
-		}
-		if (intsts0 & DVSQ)
-			irq_device_state(r8a66597);
-
-		if ((intsts0 & BRDY) && (intenb0 & BRDYE)
-				&& (brdysts & brdyenb))
-			irq_pipe_ready(r8a66597, brdysts, brdyenb);
-		if ((intsts0 & BEMP) && (intenb0 & BEMPE)
-				&& (bempsts & bempenb))
-			irq_pipe_empty(r8a66597, bempsts, bempenb);
-
-		if (intsts0 & CTRT)
-			irq_control_stage(r8a66597);
-	}
-
-	r8a66597_write(r8a66597, savepipe, CFIFOSEL);
-
-	spin_unlock(&r8a66597->lock);
-	return IRQ_HANDLED;
-}
-
-static void r8a66597_timer(unsigned long _r8a66597)
-{
-	struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
-	unsigned long flags;
-	u16 tmp;
-
-	spin_lock_irqsave(&r8a66597->lock, flags);
-	tmp = r8a66597_read(r8a66597, SYSCFG0);
-	if (r8a66597->scount > 0) {
-		tmp = r8a66597_read(r8a66597, INTSTS0) & VBSTS;
-		if (tmp == r8a66597->old_vbus) {
-			r8a66597->scount--;
-			if (r8a66597->scount == 0) {
-				if (tmp == VBSTS)
-					r8a66597_usb_connect(r8a66597);
-				else
-					r8a66597_usb_disconnect(r8a66597);
-			} else {
-				mod_timer(&r8a66597->timer,
-					jiffies + msecs_to_jiffies(50));
-			}
-		} else {
-			r8a66597->scount = R8A66597_MAX_SAMPLING;
-			r8a66597->old_vbus = tmp;
-			mod_timer(&r8a66597->timer,
-					jiffies + msecs_to_jiffies(50));
-		}
-	}
-	spin_unlock_irqrestore(&r8a66597->lock, flags);
-}
-
-/*-------------------------------------------------------------------------*/
-static int r8a66597_enable(struct usb_ep *_ep,
-			 const struct usb_endpoint_descriptor *desc)
-{
-	struct r8a66597_ep *ep;
-
-	ep = container_of(_ep, struct r8a66597_ep, ep);
-	return alloc_pipe_config(ep, desc);
-}
-
-static int r8a66597_disable(struct usb_ep *_ep)
-{
-	struct r8a66597_ep *ep;
-	struct r8a66597_request *req;
-	unsigned long flags;
-
-	ep = container_of(_ep, struct r8a66597_ep, ep);
-	BUG_ON(!ep);
-
-	while (!list_empty(&ep->queue)) {
-		req = get_request_from_ep(ep);
-		spin_lock_irqsave(&ep->r8a66597->lock, flags);
-		transfer_complete(ep, req, -ECONNRESET);
-		spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
-	}
-
-	pipe_irq_disable(ep->r8a66597, ep->pipenum);
-	return free_pipe_config(ep);
-}
-
-static struct usb_request *r8a66597_alloc_request(struct usb_ep *_ep,
-						gfp_t gfp_flags)
-{
-	struct r8a66597_request *req;
-
-	req = kzalloc(sizeof(struct r8a66597_request), gfp_flags);
-	if (!req)
-		return NULL;
-
-	INIT_LIST_HEAD(&req->queue);
-
-	return &req->req;
-}
-
-static void r8a66597_free_request(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct r8a66597_request *req;
-
-	req = container_of(_req, struct r8a66597_request, req);
-	kfree(req);
-}
-
-static int r8a66597_queue(struct usb_ep *_ep, struct usb_request *_req,
-			gfp_t gfp_flags)
-{
-	struct r8a66597_ep *ep;
-	struct r8a66597_request *req;
-	unsigned long flags;
-	int request = 0;
-
-	ep = container_of(_ep, struct r8a66597_ep, ep);
-	req = container_of(_req, struct r8a66597_request, req);
-
-	if (ep->r8a66597->gadget.speed == USB_SPEED_UNKNOWN)
-		return -ESHUTDOWN;
-
-	spin_lock_irqsave(&ep->r8a66597->lock, flags);
-
-	if (list_empty(&ep->queue))
-		request = 1;
-
-	list_add_tail(&req->queue, &ep->queue);
-	req->req.actual = 0;
-	req->req.status = -EINPROGRESS;
-
-	if (ep->ep.desc == NULL)	/* control */
-		start_ep0(ep, req);
-	else {
-		if (request && !ep->busy)
-			start_packet(ep, req);
-	}
-
-	spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
-
-	return 0;
-}
-
-static int r8a66597_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct r8a66597_ep *ep;
-	struct r8a66597_request *req;
-	unsigned long flags;
-
-	ep = container_of(_ep, struct r8a66597_ep, ep);
-	req = container_of(_req, struct r8a66597_request, req);
-
-	spin_lock_irqsave(&ep->r8a66597->lock, flags);
-	if (!list_empty(&ep->queue))
-		transfer_complete(ep, req, -ECONNRESET);
-	spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
-
-	return 0;
-}
-
-static int r8a66597_set_halt(struct usb_ep *_ep, int value)
-{
-	struct r8a66597_ep *ep;
-	struct r8a66597_request *req;
-	unsigned long flags;
-	int ret = 0;
-
-	ep = container_of(_ep, struct r8a66597_ep, ep);
-	req = get_request_from_ep(ep);
-
-	spin_lock_irqsave(&ep->r8a66597->lock, flags);
-	if (!list_empty(&ep->queue)) {
-		ret = -EAGAIN;
-		goto out;
-	}
-	if (value) {
-		ep->busy = 1;
-		pipe_stall(ep->r8a66597, ep->pipenum);
-	} else {
-		ep->busy = 0;
-		ep->wedge = 0;
-		pipe_stop(ep->r8a66597, ep->pipenum);
-	}
-
-out:
-	spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
-	return ret;
-}
-
-static int r8a66597_set_wedge(struct usb_ep *_ep)
-{
-	struct r8a66597_ep *ep;
-	unsigned long flags;
-
-	ep = container_of(_ep, struct r8a66597_ep, ep);
-
-	if (!ep || !ep->ep.desc)
-		return -EINVAL;
-
-	spin_lock_irqsave(&ep->r8a66597->lock, flags);
-	ep->wedge = 1;
-	spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
-
-	return usb_ep_set_halt(_ep);
-}
-
-static void r8a66597_fifo_flush(struct usb_ep *_ep)
-{
-	struct r8a66597_ep *ep;
-	unsigned long flags;
-
-	ep = container_of(_ep, struct r8a66597_ep, ep);
-	spin_lock_irqsave(&ep->r8a66597->lock, flags);
-	if (list_empty(&ep->queue) && !ep->busy) {
-		pipe_stop(ep->r8a66597, ep->pipenum);
-		r8a66597_bclr(ep->r8a66597, BCLR, ep->fifoctr);
-		r8a66597_write(ep->r8a66597, ACLRM, ep->pipectr);
-		r8a66597_write(ep->r8a66597, 0, ep->pipectr);
-	}
-	spin_unlock_irqrestore(&ep->r8a66597->lock, flags);
-}
-
-static struct usb_ep_ops r8a66597_ep_ops = {
-	.enable		= r8a66597_enable,
-	.disable	= r8a66597_disable,
-
-	.alloc_request	= r8a66597_alloc_request,
-	.free_request	= r8a66597_free_request,
-
-	.queue		= r8a66597_queue,
-	.dequeue	= r8a66597_dequeue,
-
-	.set_halt	= r8a66597_set_halt,
-	.set_wedge	= r8a66597_set_wedge,
-	.fifo_flush	= r8a66597_fifo_flush,
-};
-
-/*-------------------------------------------------------------------------*/
-static int r8a66597_start(struct usb_gadget *gadget,
-		struct usb_gadget_driver *driver)
-{
-	struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget);
-
-	if (!driver
-			|| driver->max_speed < USB_SPEED_HIGH
-			|| !driver->setup)
-		return -EINVAL;
-	if (!r8a66597)
-		return -ENODEV;
-
-	/* hook up the driver */
-	r8a66597->driver = driver;
-
-	init_controller(r8a66597);
-	r8a66597_bset(r8a66597, VBSE, INTENB0);
-	if (r8a66597_read(r8a66597, INTSTS0) & VBSTS) {
-		r8a66597_start_xclock(r8a66597);
-		/* start vbus sampling */
-		r8a66597->old_vbus = r8a66597_read(r8a66597,
-					 INTSTS0) & VBSTS;
-		r8a66597->scount = R8A66597_MAX_SAMPLING;
-		mod_timer(&r8a66597->timer, jiffies + msecs_to_jiffies(50));
-	}
-
-	return 0;
-}
-
-static int r8a66597_stop(struct usb_gadget *gadget,
-		struct usb_gadget_driver *driver)
-{
-	struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget);
-	unsigned long flags;
-
-	spin_lock_irqsave(&r8a66597->lock, flags);
-	r8a66597_bclr(r8a66597, VBSE, INTENB0);
-	disable_controller(r8a66597);
-	spin_unlock_irqrestore(&r8a66597->lock, flags);
-
-	r8a66597->driver = NULL;
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int r8a66597_get_frame(struct usb_gadget *_gadget)
-{
-	struct r8a66597 *r8a66597 = gadget_to_r8a66597(_gadget);
-	return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
-}
-
-static int r8a66597_pullup(struct usb_gadget *gadget, int is_on)
-{
-	struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget);
-	unsigned long flags;
-
-	spin_lock_irqsave(&r8a66597->lock, flags);
-	if (is_on)
-		r8a66597_bset(r8a66597, DPRPU, SYSCFG0);
-	else
-		r8a66597_bclr(r8a66597, DPRPU, SYSCFG0);
-	spin_unlock_irqrestore(&r8a66597->lock, flags);
-
-	return 0;
-}
-
-static int r8a66597_set_selfpowered(struct usb_gadget *gadget, int is_self)
-{
-	struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget);
-
-	if (is_self)
-		r8a66597->device_status |= 1 << USB_DEVICE_SELF_POWERED;
-	else
-		r8a66597->device_status &= ~(1 << USB_DEVICE_SELF_POWERED);
-
-	return 0;
-}
-
-static const struct usb_gadget_ops r8a66597_gadget_ops = {
-	.get_frame		= r8a66597_get_frame,
-	.udc_start		= r8a66597_start,
-	.udc_stop		= r8a66597_stop,
-	.pullup			= r8a66597_pullup,
-	.set_selfpowered	= r8a66597_set_selfpowered,
-};
-
-static int __exit r8a66597_remove(struct platform_device *pdev)
-{
-	struct r8a66597		*r8a66597 = platform_get_drvdata(pdev);
-
-	usb_del_gadget_udc(&r8a66597->gadget);
-	del_timer_sync(&r8a66597->timer);
-	r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req);
-
-	if (r8a66597->pdata->on_chip) {
-		clk_disable_unprepare(r8a66597->clk);
-	}
-
-	return 0;
-}
-
-static void nop_completion(struct usb_ep *ep, struct usb_request *r)
-{
-}
-
-static int r8a66597_sudmac_ioremap(struct r8a66597 *r8a66597,
-					  struct platform_device *pdev)
-{
-	struct resource *res;
-
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sudmac");
-	r8a66597->sudmac_reg = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(r8a66597->sudmac_reg)) {
-		dev_err(&pdev->dev, "ioremap error(sudmac).\n");
-		return PTR_ERR(r8a66597->sudmac_reg);
-	}
-
-	return 0;
-}
-
-static int r8a66597_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	char clk_name[8];
-	struct resource *res, *ires;
-	int irq;
-	void __iomem *reg = NULL;
-	struct r8a66597 *r8a66597 = NULL;
-	int ret = 0;
-	int i;
-	unsigned long irq_trigger;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	reg = devm_ioremap_resource(&pdev->dev, res);
-	if (!reg)
-		return -ENODEV;
-
-	ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	irq = ires->start;
-	irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
-
-	if (irq < 0) {
-		dev_err(dev, "platform_get_irq error.\n");
-		return -ENODEV;
-	}
-
-	/* initialize ucd */
-	r8a66597 = devm_kzalloc(dev, sizeof(struct r8a66597), GFP_KERNEL);
-	if (r8a66597 == NULL)
-		return -ENOMEM;
-
-	spin_lock_init(&r8a66597->lock);
-	platform_set_drvdata(pdev, r8a66597);
-	r8a66597->pdata = dev_get_platdata(dev);
-	r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
-
-	r8a66597->gadget.ops = &r8a66597_gadget_ops;
-	r8a66597->gadget.max_speed = USB_SPEED_HIGH;
-	r8a66597->gadget.name = udc_name;
-
-	init_timer(&r8a66597->timer);
-	r8a66597->timer.function = r8a66597_timer;
-	r8a66597->timer.data = (unsigned long)r8a66597;
-	r8a66597->reg = reg;
-
-	if (r8a66597->pdata->on_chip) {
-		snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
-		r8a66597->clk = devm_clk_get(dev, clk_name);
-		if (IS_ERR(r8a66597->clk)) {
-			dev_err(dev, "cannot get clock \"%s\"\n", clk_name);
-			return PTR_ERR(r8a66597->clk);
-		}
-		clk_prepare_enable(r8a66597->clk);
-	}
-
-	if (r8a66597->pdata->sudmac) {
-		ret = r8a66597_sudmac_ioremap(r8a66597, pdev);
-		if (ret < 0)
-			goto clean_up2;
-	}
-
-	disable_controller(r8a66597); /* make sure controller is disabled */
-
-	ret = devm_request_irq(dev, irq, r8a66597_irq, IRQF_SHARED,
-			       udc_name, r8a66597);
-	if (ret < 0) {
-		dev_err(dev, "request_irq error (%d)\n", ret);
-		goto clean_up2;
-	}
-
-	INIT_LIST_HEAD(&r8a66597->gadget.ep_list);
-	r8a66597->gadget.ep0 = &r8a66597->ep[0].ep;
-	INIT_LIST_HEAD(&r8a66597->gadget.ep0->ep_list);
-	for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
-		struct r8a66597_ep *ep = &r8a66597->ep[i];
-
-		if (i != 0) {
-			INIT_LIST_HEAD(&r8a66597->ep[i].ep.ep_list);
-			list_add_tail(&r8a66597->ep[i].ep.ep_list,
-					&r8a66597->gadget.ep_list);
-		}
-		ep->r8a66597 = r8a66597;
-		INIT_LIST_HEAD(&ep->queue);
-		ep->ep.name = r8a66597_ep_name[i];
-		ep->ep.ops = &r8a66597_ep_ops;
-		usb_ep_set_maxpacket_limit(&ep->ep, 512);
-	}
-	usb_ep_set_maxpacket_limit(&r8a66597->ep[0].ep, 64);
-	r8a66597->ep[0].pipenum = 0;
-	r8a66597->ep[0].fifoaddr = CFIFO;
-	r8a66597->ep[0].fifosel = CFIFOSEL;
-	r8a66597->ep[0].fifoctr = CFIFOCTR;
-	r8a66597->ep[0].pipectr = get_pipectr_addr(0);
-	r8a66597->pipenum2ep[0] = &r8a66597->ep[0];
-	r8a66597->epaddr2ep[0] = &r8a66597->ep[0];
-
-	r8a66597->ep0_req = r8a66597_alloc_request(&r8a66597->ep[0].ep,
-							GFP_KERNEL);
-	if (r8a66597->ep0_req == NULL) {
-		ret = -ENOMEM;
-		goto clean_up2;
-	}
-	r8a66597->ep0_req->complete = nop_completion;
-
-	ret = usb_add_gadget_udc(dev, &r8a66597->gadget);
-	if (ret)
-		goto err_add_udc;
-
-	dev_info(dev, "version %s\n", DRIVER_VERSION);
-	return 0;
-
-err_add_udc:
-	r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req);
-clean_up2:
-	if (r8a66597->pdata->on_chip)
-		clk_disable_unprepare(r8a66597->clk);
-
-	if (r8a66597->ep0_req)
-		r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req);
-
-	return ret;
-}
-
-/*-------------------------------------------------------------------------*/
-static struct platform_driver r8a66597_driver = {
-	.remove =	__exit_p(r8a66597_remove),
-	.driver		= {
-		.name =	(char *) udc_name,
-	},
-};
-
-module_platform_driver_probe(r8a66597_driver, r8a66597_probe);
-
-MODULE_DESCRIPTION("R8A66597 USB gadget driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Yoshihiro Shimoda");
-MODULE_ALIAS("platform:r8a66597_udc");