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, 1706 deletions

diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
deleted file mode 100644
index de88d33b44b2..000000000000
--- a/drivers/usb/gadget/m66592-udc.c
+++ /dev/null
@@ -1,1706 +0,0 @@
-/*
- * M66592 UDC (USB gadget)
- *
- * Copyright (C) 2006-2007 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/slab.h>
-#include <linux/err.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-#include "m66592-udc.h"
-
-MODULE_DESCRIPTION("M66592 USB gadget driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Yoshihiro Shimoda");
-MODULE_ALIAS("platform:m66592_udc");
-
-#define DRIVER_VERSION	"21 July 2009"
-
-static const char udc_name[] = "m66592_udc";
-static const char *m66592_ep_name[] = {
-	"ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7"
-};
-
-static void disable_controller(struct m66592 *m66592);
-static void irq_ep0_write(struct m66592_ep *ep, struct m66592_request *req);
-static void irq_packet_write(struct m66592_ep *ep, struct m66592_request *req);
-static int m66592_queue(struct usb_ep *_ep, struct usb_request *_req,
-			gfp_t gfp_flags);
-
-static void transfer_complete(struct m66592_ep *ep,
-		struct m66592_request *req, int status);
-
-/*-------------------------------------------------------------------------*/
-static inline u16 get_usb_speed(struct m66592 *m66592)
-{
-	return (m66592_read(m66592, M66592_DVSTCTR) & M66592_RHST);
-}
-
-static void enable_pipe_irq(struct m66592 *m66592, u16 pipenum,
-		unsigned long reg)
-{
-	u16 tmp;
-
-	tmp = m66592_read(m66592, M66592_INTENB0);
-	m66592_bclr(m66592, M66592_BEMPE | M66592_NRDYE | M66592_BRDYE,
-			M66592_INTENB0);
-	m66592_bset(m66592, (1 << pipenum), reg);
-	m66592_write(m66592, tmp, M66592_INTENB0);
-}
-
-static void disable_pipe_irq(struct m66592 *m66592, u16 pipenum,
-		unsigned long reg)
-{
-	u16 tmp;
-
-	tmp = m66592_read(m66592, M66592_INTENB0);
-	m66592_bclr(m66592, M66592_BEMPE | M66592_NRDYE | M66592_BRDYE,
-			M66592_INTENB0);
-	m66592_bclr(m66592, (1 << pipenum), reg);
-	m66592_write(m66592, tmp, M66592_INTENB0);
-}
-
-static void m66592_usb_connect(struct m66592 *m66592)
-{
-	m66592_bset(m66592, M66592_CTRE, M66592_INTENB0);
-	m66592_bset(m66592, M66592_WDST | M66592_RDST | M66592_CMPL,
-			M66592_INTENB0);
-	m66592_bset(m66592, M66592_BEMPE | M66592_BRDYE, M66592_INTENB0);
-
-	m66592_bset(m66592, M66592_DPRPU, M66592_SYSCFG);
-}
-
-static void m66592_usb_disconnect(struct m66592 *m66592)
-__releases(m66592->lock)
-__acquires(m66592->lock)
-{
-	m66592_bclr(m66592, M66592_CTRE, M66592_INTENB0);
-	m66592_bclr(m66592, M66592_WDST | M66592_RDST | M66592_CMPL,
-			M66592_INTENB0);
-	m66592_bclr(m66592, M66592_BEMPE | M66592_BRDYE, M66592_INTENB0);
-	m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
-
-	m66592->gadget.speed = USB_SPEED_UNKNOWN;
-	spin_unlock(&m66592->lock);
-	m66592->driver->disconnect(&m66592->gadget);
-	spin_lock(&m66592->lock);
-
-	disable_controller(m66592);
-	INIT_LIST_HEAD(&m66592->ep[0].queue);
-}
-
-static inline u16 control_reg_get_pid(struct m66592 *m66592, u16 pipenum)
-{
-	u16 pid = 0;
-	unsigned long offset;
-
-	if (pipenum == 0)
-		pid = m66592_read(m66592, M66592_DCPCTR) & M66592_PID;
-	else if (pipenum < M66592_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		pid = m66592_read(m66592, offset) & M66592_PID;
-	} else
-		pr_err("unexpect pipe num (%d)\n", pipenum);
-
-	return pid;
-}
-
-static inline void control_reg_set_pid(struct m66592 *m66592, u16 pipenum,
-		u16 pid)
-{
-	unsigned long offset;
-
-	if (pipenum == 0)
-		m66592_mdfy(m66592, pid, M66592_PID, M66592_DCPCTR);
-	else if (pipenum < M66592_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		m66592_mdfy(m66592, pid, M66592_PID, offset);
-	} else
-		pr_err("unexpect pipe num (%d)\n", pipenum);
-}
-
-static inline void pipe_start(struct m66592 *m66592, u16 pipenum)
-{
-	control_reg_set_pid(m66592, pipenum, M66592_PID_BUF);
-}
-
-static inline void pipe_stop(struct m66592 *m66592, u16 pipenum)
-{
-	control_reg_set_pid(m66592, pipenum, M66592_PID_NAK);
-}
-
-static inline void pipe_stall(struct m66592 *m66592, u16 pipenum)
-{
-	control_reg_set_pid(m66592, pipenum, M66592_PID_STALL);
-}
-
-static inline u16 control_reg_get(struct m66592 *m66592, u16 pipenum)
-{
-	u16 ret = 0;
-	unsigned long offset;
-
-	if (pipenum == 0)
-		ret = m66592_read(m66592, M66592_DCPCTR);
-	else if (pipenum < M66592_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		ret = m66592_read(m66592, offset);
-	} else
-		pr_err("unexpect pipe num (%d)\n", pipenum);
-
-	return ret;
-}
-
-static inline void control_reg_sqclr(struct m66592 *m66592, u16 pipenum)
-{
-	unsigned long offset;
-
-	pipe_stop(m66592, pipenum);
-
-	if (pipenum == 0)
-		m66592_bset(m66592, M66592_SQCLR, M66592_DCPCTR);
-	else if (pipenum < M66592_MAX_NUM_PIPE) {
-		offset = get_pipectr_addr(pipenum);
-		m66592_bset(m66592, M66592_SQCLR, offset);
-	} else
-		pr_err("unexpect pipe num(%d)\n", pipenum);
-}
-
-static inline int get_buffer_size(struct m66592 *m66592, u16 pipenum)
-{
-	u16 tmp;
-	int size;
-
-	if (pipenum == 0) {
-		tmp = m66592_read(m66592, M66592_DCPCFG);
-		if ((tmp & M66592_CNTMD) != 0)
-			size = 256;
-		else {
-			tmp = m66592_read(m66592, M66592_DCPMAXP);
-			size = tmp & M66592_MAXP;
-		}
-	} else {
-		m66592_write(m66592, pipenum, M66592_PIPESEL);
-		tmp = m66592_read(m66592, M66592_PIPECFG);
-		if ((tmp & M66592_CNTMD) != 0) {
-			tmp = m66592_read(m66592, M66592_PIPEBUF);
-			size = ((tmp >> 10) + 1) * 64;
-		} else {
-			tmp = m66592_read(m66592, M66592_PIPEMAXP);
-			size = tmp & M66592_MXPS;
-		}
-	}
-
-	return size;
-}
-
-static inline void pipe_change(struct m66592 *m66592, u16 pipenum)
-{
-	struct m66592_ep *ep = m66592->pipenum2ep[pipenum];
-	unsigned short mbw;
-
-	if (ep->use_dma)
-		return;
-
-	m66592_mdfy(m66592, pipenum, M66592_CURPIPE, ep->fifosel);
-
-	ndelay(450);
-
-	if (m66592->pdata->on_chip)
-		mbw = M66592_MBW_32;
-	else
-		mbw = M66592_MBW_16;
-
-	m66592_bset(m66592, mbw, ep->fifosel);
-}
-
-static int pipe_buffer_setting(struct m66592 *m66592,
-		struct m66592_pipe_info *info)
-{
-	u16 bufnum = 0, buf_bsize = 0;
-	u16 pipecfg = 0;
-
-	if (info->pipe == 0)
-		return -EINVAL;
-
-	m66592_write(m66592, info->pipe, M66592_PIPESEL);
-
-	if (info->dir_in)
-		pipecfg |= M66592_DIR;
-	pipecfg |= info->type;
-	pipecfg |= info->epnum;
-	switch (info->type) {
-	case M66592_INT:
-		bufnum = 4 + (info->pipe - M66592_BASE_PIPENUM_INT);
-		buf_bsize = 0;
-		break;
-	case M66592_BULK:
-		/* isochronous pipes may be used as bulk pipes */
-		if (info->pipe >= M66592_BASE_PIPENUM_BULK)
-			bufnum = info->pipe - M66592_BASE_PIPENUM_BULK;
-		else
-			bufnum = info->pipe - M66592_BASE_PIPENUM_ISOC;
-
-		bufnum = M66592_BASE_BUFNUM + (bufnum * 16);
-		buf_bsize = 7;
-		pipecfg |= M66592_DBLB;
-		if (!info->dir_in)
-			pipecfg |= M66592_SHTNAK;
-		break;
-	case M66592_ISO:
-		bufnum = M66592_BASE_BUFNUM +
-			 (info->pipe - M66592_BASE_PIPENUM_ISOC) * 16;
-		buf_bsize = 7;
-		break;
-	}
-
-	if (buf_bsize && ((bufnum + 16) >= M66592_MAX_BUFNUM)) {
-		pr_err("m66592 pipe memory is insufficient\n");
-		return -ENOMEM;
-	}
-
-	m66592_write(m66592, pipecfg, M66592_PIPECFG);
-	m66592_write(m66592, (buf_bsize << 10) | (bufnum), M66592_PIPEBUF);
-	m66592_write(m66592, info->maxpacket, M66592_PIPEMAXP);
-	if (info->interval)
-		info->interval--;
-	m66592_write(m66592, info->interval, M66592_PIPEPERI);
-
-	return 0;
-}
-
-static void pipe_buffer_release(struct m66592 *m66592,
-				struct m66592_pipe_info *info)
-{
-	if (info->pipe == 0)
-		return;
-
-	if (is_bulk_pipe(info->pipe)) {
-		m66592->bulk--;
-	} else if (is_interrupt_pipe(info->pipe))
-		m66592->interrupt--;
-	else if (is_isoc_pipe(info->pipe)) {
-		m66592->isochronous--;
-		if (info->type == M66592_BULK)
-			m66592->bulk--;
-	} else
-		pr_err("ep_release: unexpect pipenum (%d)\n",
-				info->pipe);
-}
-
-static void pipe_initialize(struct m66592_ep *ep)
-{
-	struct m66592 *m66592 = ep->m66592;
-	unsigned short mbw;
-
-	m66592_mdfy(m66592, 0, M66592_CURPIPE, ep->fifosel);
-
-	m66592_write(m66592, M66592_ACLRM, ep->pipectr);
-	m66592_write(m66592, 0, ep->pipectr);
-	m66592_write(m66592, M66592_SQCLR, ep->pipectr);
-	if (ep->use_dma) {
-		m66592_mdfy(m66592, ep->pipenum, M66592_CURPIPE, ep->fifosel);
-
-		ndelay(450);
-
-		if (m66592->pdata->on_chip)
-			mbw = M66592_MBW_32;
-		else
-			mbw = M66592_MBW_16;
-
-		m66592_bset(m66592, mbw, ep->fifosel);
-	}
-}
-
-static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
-		const struct usb_endpoint_descriptor *desc,
-		u16 pipenum, int dma)
-{
-	if ((pipenum != 0) && dma) {
-		if (m66592->num_dma == 0) {
-			m66592->num_dma++;
-			ep->use_dma = 1;
-			ep->fifoaddr = M66592_D0FIFO;
-			ep->fifosel = M66592_D0FIFOSEL;
-			ep->fifoctr = M66592_D0FIFOCTR;
-			ep->fifotrn = M66592_D0FIFOTRN;
-		} else if (!m66592->pdata->on_chip && m66592->num_dma == 1) {
-			m66592->num_dma++;
-			ep->use_dma = 1;
-			ep->fifoaddr = M66592_D1FIFO;
-			ep->fifosel = M66592_D1FIFOSEL;
-			ep->fifoctr = M66592_D1FIFOCTR;
-			ep->fifotrn = M66592_D1FIFOTRN;
-		} else {
-			ep->use_dma = 0;
-			ep->fifoaddr = M66592_CFIFO;
-			ep->fifosel = M66592_CFIFOSEL;
-			ep->fifoctr = M66592_CFIFOCTR;
-			ep->fifotrn = 0;
-		}
-	} else {
-		ep->use_dma = 0;
-		ep->fifoaddr = M66592_CFIFO;
-		ep->fifosel = M66592_CFIFOSEL;
-		ep->fifoctr = M66592_CFIFOCTR;
-		ep->fifotrn = 0;
-	}
-
-	ep->pipectr = get_pipectr_addr(pipenum);
-	ep->pipenum = pipenum;
-	ep->ep.maxpacket = usb_endpoint_maxp(desc);
-	m66592->pipenum2ep[pipenum] = ep;
-	m66592->epaddr2ep[desc->bEndpointAddress&USB_ENDPOINT_NUMBER_MASK] = ep;
-	INIT_LIST_HEAD(&ep->queue);
-}
-
-static void m66592_ep_release(struct m66592_ep *ep)
-{
-	struct m66592 *m66592 = ep->m66592;
-	u16 pipenum = ep->pipenum;
-
-	if (pipenum == 0)
-		return;
-
-	if (ep->use_dma)
-		m66592->num_dma--;
-	ep->pipenum = 0;
-	ep->busy = 0;
-	ep->use_dma = 0;
-}
-
-static int alloc_pipe_config(struct m66592_ep *ep,
-		const struct usb_endpoint_descriptor *desc)
-{
-	struct m66592 *m66592 = ep->m66592;
-	struct m66592_pipe_info info;
-	int dma = 0;
-	int *counter;
-	int ret;
-
-	ep->ep.desc = desc;
-
-	BUG_ON(ep->pipenum);
-
-	switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
-	case USB_ENDPOINT_XFER_BULK:
-		if (m66592->bulk >= M66592_MAX_NUM_BULK) {
-			if (m66592->isochronous >= M66592_MAX_NUM_ISOC) {
-				pr_err("bulk pipe is insufficient\n");
-				return -ENODEV;
-			} else {
-				info.pipe = M66592_BASE_PIPENUM_ISOC
-						+ m66592->isochronous;
-				counter = &m66592->isochronous;
-			}
-		} else {
-			info.pipe = M66592_BASE_PIPENUM_BULK + m66592->bulk;
-			counter = &m66592->bulk;
-		}
-		info.type = M66592_BULK;
-		dma = 1;
-		break;
-	case USB_ENDPOINT_XFER_INT:
-		if (m66592->interrupt >= M66592_MAX_NUM_INT) {
-			pr_err("interrupt pipe is insufficient\n");
-			return -ENODEV;
-		}
-		info.pipe = M66592_BASE_PIPENUM_INT + m66592->interrupt;
-		info.type = M66592_INT;
-		counter = &m66592->interrupt;
-		break;
-	case USB_ENDPOINT_XFER_ISOC:
-		if (m66592->isochronous >= M66592_MAX_NUM_ISOC) {
-			pr_err("isochronous pipe is insufficient\n");
-			return -ENODEV;
-		}
-		info.pipe = M66592_BASE_PIPENUM_ISOC + m66592->isochronous;
-		info.type = M66592_ISO;
-		counter = &m66592->isochronous;
-		break;
-	default:
-		pr_err("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(m66592, &info);
-	if (ret < 0) {
-		pr_err("pipe_buffer_setting fail\n");
-		return ret;
-	}
-
-	(*counter)++;
-	if ((counter == &m66592->isochronous) && info.type == M66592_BULK)
-		m66592->bulk++;
-
-	m66592_ep_setting(m66592, ep, desc, info.pipe, dma);
-	pipe_initialize(ep);
-
-	return 0;
-}
-
-static int free_pipe_config(struct m66592_ep *ep)
-{
-	struct m66592 *m66592 = ep->m66592;
-	struct m66592_pipe_info info;
-
-	info.pipe = ep->pipenum;
-	info.type = ep->type;
-	pipe_buffer_release(m66592, &info);
-	m66592_ep_release(ep);
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static void pipe_irq_enable(struct m66592 *m66592, u16 pipenum)
-{
-	enable_irq_ready(m66592, pipenum);
-	enable_irq_nrdy(m66592, pipenum);
-}
-
-static void pipe_irq_disable(struct m66592 *m66592, u16 pipenum)
-{
-	disable_irq_ready(m66592, pipenum);
-	disable_irq_nrdy(m66592, pipenum);
-}
-
-/* if complete is true, gadget driver complete function is not call */
-static void control_end(struct m66592 *m66592, unsigned ccpl)
-{
-	m66592->ep[0].internal_ccpl = ccpl;
-	pipe_start(m66592, 0);
-	m66592_bset(m66592, M66592_CCPL, M66592_DCPCTR);
-}
-
-static void start_ep0_write(struct m66592_ep *ep, struct m66592_request *req)
-{
-	struct m66592 *m66592 = ep->m66592;
-
-	pipe_change(m66592, ep->pipenum);
-	m66592_mdfy(m66592, M66592_ISEL | M66592_PIPE0,
-			(M66592_ISEL | M66592_CURPIPE),
-			M66592_CFIFOSEL);
-	m66592_write(m66592, M66592_BCLR, ep->fifoctr);
-	if (req->req.length == 0) {
-		m66592_bset(m66592, M66592_BVAL, ep->fifoctr);
-		pipe_start(m66592, 0);
-		transfer_complete(ep, req, 0);
-	} else {
-		m66592_write(m66592, ~M66592_BEMP0, M66592_BEMPSTS);
-		irq_ep0_write(ep, req);
-	}
-}
-
-static void start_packet_write(struct m66592_ep *ep, struct m66592_request *req)
-{
-	struct m66592 *m66592 = ep->m66592;
-	u16 tmp;
-
-	pipe_change(m66592, ep->pipenum);
-	disable_irq_empty(m66592, ep->pipenum);
-	pipe_start(m66592, ep->pipenum);
-
-	tmp = m66592_read(m66592, ep->fifoctr);
-	if (unlikely((tmp & M66592_FRDY) == 0))
-		pipe_irq_enable(m66592, ep->pipenum);
-	else
-		irq_packet_write(ep, req);
-}
-
-static void start_packet_read(struct m66592_ep *ep, struct m66592_request *req)
-{
-	struct m66592 *m66592 = ep->m66592;
-	u16 pipenum = ep->pipenum;
-
-	if (ep->pipenum == 0) {
-		m66592_mdfy(m66592, M66592_PIPE0,
-				(M66592_ISEL | M66592_CURPIPE),
-				M66592_CFIFOSEL);
-		m66592_write(m66592, M66592_BCLR, ep->fifoctr);
-		pipe_start(m66592, pipenum);
-		pipe_irq_enable(m66592, pipenum);
-	} else {
-		if (ep->use_dma) {
-			m66592_bset(m66592, M66592_TRCLR, ep->fifosel);
-			pipe_change(m66592, pipenum);
-			m66592_bset(m66592, M66592_TRENB, ep->fifosel);
-			m66592_write(m66592,
-				(req->req.length + ep->ep.maxpacket - 1)
-					/ ep->ep.maxpacket,
-				ep->fifotrn);
-		}
-		pipe_start(m66592, pipenum);	/* trigger once */
-		pipe_irq_enable(m66592, pipenum);
-	}
-}
-
-static void start_packet(struct m66592_ep *ep, struct m66592_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 m66592_ep *ep, struct m66592_request *req)
-{
-	u16 ctsq;
-
-	ctsq = m66592_read(ep->m66592, M66592_INTSTS0) & M66592_CTSQ;
-
-	switch (ctsq) {
-	case M66592_CS_RDDS:
-		start_ep0_write(ep, req);
-		break;
-	case M66592_CS_WRDS:
-		start_packet_read(ep, req);
-		break;
-
-	case M66592_CS_WRND:
-		control_end(ep->m66592, 0);
-		break;
-	default:
-		pr_err("start_ep0: unexpect ctsq(%x)\n", ctsq);
-		break;
-	}
-}
-
-static void init_controller(struct m66592 *m66592)
-{
-	unsigned int endian;
-
-	if (m66592->pdata->on_chip) {
-		if (m66592->pdata->endian)
-			endian = 0; /* big endian */
-		else
-			endian = M66592_LITTLE; /* little endian */
-
-		m66592_bset(m66592, M66592_HSE, M66592_SYSCFG);	/* High spd */
-		m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
-		m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
-		m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
-
-		/* This is a workaound for SH7722 2nd cut */
-		m66592_bset(m66592, 0x8000, M66592_DVSTCTR);
-		m66592_bset(m66592, 0x1000, M66592_TESTMODE);
-		m66592_bclr(m66592, 0x8000, M66592_DVSTCTR);
-
-		m66592_bset(m66592, M66592_INTL, M66592_INTENB1);
-
-		m66592_write(m66592, 0, M66592_CFBCFG);
-		m66592_write(m66592, 0, M66592_D0FBCFG);
-		m66592_bset(m66592, endian, M66592_CFBCFG);
-		m66592_bset(m66592, endian, M66592_D0FBCFG);
-	} else {
-		unsigned int clock, vif, irq_sense;
-
-		if (m66592->pdata->endian)
-			endian = M66592_BIGEND; /* big endian */
-		else
-			endian = 0; /* little endian */
-
-		if (m66592->pdata->vif)
-			vif = M66592_LDRV; /* 3.3v */
-		else
-			vif = 0; /* 1.5v */
-
-		switch (m66592->pdata->xtal) {
-		case M66592_PLATDATA_XTAL_12MHZ:
-			clock = M66592_XTAL12;
-			break;
-		case M66592_PLATDATA_XTAL_24MHZ:
-			clock = M66592_XTAL24;
-			break;
-		case M66592_PLATDATA_XTAL_48MHZ:
-			clock = M66592_XTAL48;
-			break;
-		default:
-			pr_warning("m66592-udc: xtal configuration error\n");
-			clock = 0;
-		}
-
-		switch (m66592->irq_trigger) {
-		case IRQF_TRIGGER_LOW:
-			irq_sense = M66592_INTL;
-			break;
-		case IRQF_TRIGGER_FALLING:
-			irq_sense = 0;
-			break;
-		default:
-			pr_warning("m66592-udc: irq trigger config error\n");
-			irq_sense = 0;
-		}
-
-		m66592_bset(m66592,
-			    (vif & M66592_LDRV) | (endian & M66592_BIGEND),
-			    M66592_PINCFG);
-		m66592_bset(m66592, M66592_HSE, M66592_SYSCFG);	/* High spd */
-		m66592_mdfy(m66592, clock & M66592_XTAL, M66592_XTAL,
-			    M66592_SYSCFG);
-		m66592_bclr(m66592, M66592_USBE, M66592_SYSCFG);
-		m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
-		m66592_bset(m66592, M66592_USBE, M66592_SYSCFG);
-
-		m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
-
-		msleep(3);
-
-		m66592_bset(m66592, M66592_RCKE | M66592_PLLC, M66592_SYSCFG);
-
-		msleep(1);
-
-		m66592_bset(m66592, M66592_SCKE, M66592_SYSCFG);
-
-		m66592_bset(m66592, irq_sense & M66592_INTL, M66592_INTENB1);
-		m66592_write(m66592, M66592_BURST | M66592_CPU_ADR_RD_WR,
-			     M66592_DMA0CFG);
-	}
-}
-
-static void disable_controller(struct m66592 *m66592)
-{
-	m66592_bclr(m66592, M66592_UTST, M66592_TESTMODE);
-	if (!m66592->pdata->on_chip) {
-		m66592_bclr(m66592, M66592_SCKE, M66592_SYSCFG);
-		udelay(1);
-		m66592_bclr(m66592, M66592_PLLC, M66592_SYSCFG);
-		udelay(1);
-		m66592_bclr(m66592, M66592_RCKE, M66592_SYSCFG);
-		udelay(1);
-		m66592_bclr(m66592, M66592_XCKE, M66592_SYSCFG);
-	}
-}
-
-static void m66592_start_xclock(struct m66592 *m66592)
-{
-	u16 tmp;
-
-	if (!m66592->pdata->on_chip) {
-		tmp = m66592_read(m66592, M66592_SYSCFG);
-		if (!(tmp & M66592_XCKE))
-			m66592_bset(m66592, M66592_XCKE, M66592_SYSCFG);
-	}
-}
-
-/*-------------------------------------------------------------------------*/
-static void transfer_complete(struct m66592_ep *ep,
-		struct m66592_request *req, int status)
-__releases(m66592->lock)
-__acquires(m66592->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->m66592->gadget.speed == USB_SPEED_UNKNOWN)
-		req->req.status = -ESHUTDOWN;
-	else
-		req->req.status = status;
-
-	if (!list_empty(&ep->queue))
-		restart = 1;
-
-	spin_unlock(&ep->m66592->lock);
-	req->req.complete(&ep->ep, &req->req);
-	spin_lock(&ep->m66592->lock);
-
-	if (restart) {
-		req = list_entry(ep->queue.next, struct m66592_request, queue);
-		if (ep->ep.desc)
-			start_packet(ep, req);
-	}
-}
-
-static void irq_ep0_write(struct m66592_ep *ep, struct m66592_request *req)
-{
-	int i;
-	u16 tmp;
-	unsigned bufsize;
-	size_t size;
-	void *buf;
-	u16 pipenum = ep->pipenum;
-	struct m66592 *m66592 = ep->m66592;
-
-	pipe_change(m66592, pipenum);
-	m66592_bset(m66592, M66592_ISEL, ep->fifosel);
-
-	i = 0;
-	do {
-		tmp = m66592_read(m66592, ep->fifoctr);
-		if (i++ > 100000) {
-			pr_err("pipe0 is busy. maybe cpu i/o bus "
-				"conflict. please power off this controller.");
-			return;
-		}
-		ndelay(1);
-	} while ((tmp & M66592_FRDY) == 0);
-
-	/* prepare parameters */
-	bufsize = get_buffer_size(m66592, 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)
-			m66592_write_fifo(m66592, ep, buf, size);
-		if ((size == 0) || ((size % ep->ep.maxpacket) != 0))
-			m66592_bset(m66592, M66592_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(m66592, pipenum);
-		disable_irq_empty(m66592, pipenum);
-	} else {
-		disable_irq_ready(m66592, pipenum);
-		enable_irq_empty(m66592, pipenum);
-	}
-	pipe_start(m66592, pipenum);
-}
-
-static void irq_packet_write(struct m66592_ep *ep, struct m66592_request *req)
-{
-	u16 tmp;
-	unsigned bufsize;
-	size_t size;
-	void *buf;
-	u16 pipenum = ep->pipenum;
-	struct m66592 *m66592 = ep->m66592;
-
-	pipe_change(m66592, pipenum);
-	tmp = m66592_read(m66592, ep->fifoctr);
-	if (unlikely((tmp & M66592_FRDY) == 0)) {
-		pipe_stop(m66592, pipenum);
-		pipe_irq_disable(m66592, pipenum);
-		pr_err("write fifo not ready. pipnum=%d\n", pipenum);
-		return;
-	}
-
-	/* prepare parameters */
-	bufsize = get_buffer_size(m66592, pipenum);
-	buf = req->req.buf + req->req.actual;
-	size = min(bufsize, req->req.length - req->req.actual);
-
-	/* write fifo */
-	if (req->req.buf) {
-		m66592_write_fifo(m66592, ep, buf, size);
-		if ((size == 0)
-				|| ((size % ep->ep.maxpacket) != 0)
-				|| ((bufsize != ep->ep.maxpacket)
-					&& (bufsize > size)))
-			m66592_bset(m66592, M66592_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(m66592, pipenum);
-		enable_irq_empty(m66592, pipenum);
-	} else {
-		disable_irq_empty(m66592, pipenum);
-		pipe_irq_enable(m66592, pipenum);
-	}
-}
-
-static void irq_packet_read(struct m66592_ep *ep, struct m66592_request *req)
-{
-	u16 tmp;
-	int rcv_len, bufsize, req_len;
-	int size;
-	void *buf;
-	u16 pipenum = ep->pipenum;
-	struct m66592 *m66592 = ep->m66592;
-	int finish = 0;
-
-	pipe_change(m66592, pipenum);
-	tmp = m66592_read(m66592, ep->fifoctr);
-	if (unlikely((tmp & M66592_FRDY) == 0)) {
-		req->req.status = -EPIPE;
-		pipe_stop(m66592, pipenum);
-		pipe_irq_disable(m66592, pipenum);
-		pr_err("read fifo not ready");
-		return;
-	}
-
-	/* prepare parameters */
-	rcv_len = tmp & M66592_DTLN;
-	bufsize = get_buffer_size(m66592, 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(m66592, pipenum);
-		pipe_irq_disable(m66592, pipenum);
-		finish = 1;
-	}
-
-	/* read fifo */
-	if (req->req.buf) {
-		if (size == 0)
-			m66592_write(m66592, M66592_BCLR, ep->fifoctr);
-		else
-			m66592_read_fifo(m66592, ep->fifoaddr, buf, size);
-	}
-
-	if ((ep->pipenum != 0) && finish)
-		transfer_complete(ep, req, 0);
-}
-
-static void irq_pipe_ready(struct m66592 *m66592, u16 status, u16 enb)
-{
-	u16 check;
-	u16 pipenum;
-	struct m66592_ep *ep;
-	struct m66592_request *req;
-
-	if ((status & M66592_BRDY0) && (enb & M66592_BRDY0)) {
-		m66592_write(m66592, ~M66592_BRDY0, M66592_BRDYSTS);
-		m66592_mdfy(m66592, M66592_PIPE0, M66592_CURPIPE,
-				M66592_CFIFOSEL);
-
-		ep = &m66592->ep[0];
-		req = list_entry(ep->queue.next, struct m66592_request, queue);
-		irq_packet_read(ep, req);
-	} else {
-		for (pipenum = 1; pipenum < M66592_MAX_NUM_PIPE; pipenum++) {
-			check = 1 << pipenum;
-			if ((status & check) && (enb & check)) {
-				m66592_write(m66592, ~check, M66592_BRDYSTS);
-				ep = m66592->pipenum2ep[pipenum];
-				req = list_entry(ep->queue.next,
-						 struct m66592_request, queue);
-				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 m66592 *m66592, u16 status, u16 enb)
-{
-	u16 tmp;
-	u16 check;
-	u16 pipenum;
-	struct m66592_ep *ep;
-	struct m66592_request *req;
-
-	if ((status & M66592_BEMP0) && (enb & M66592_BEMP0)) {
-		m66592_write(m66592, ~M66592_BEMP0, M66592_BEMPSTS);
-
-		ep = &m66592->ep[0];
-		req = list_entry(ep->queue.next, struct m66592_request, queue);
-		irq_ep0_write(ep, req);
-	} else {
-		for (pipenum = 1; pipenum < M66592_MAX_NUM_PIPE; pipenum++) {
-			check = 1 << pipenum;
-			if ((status & check) && (enb & check)) {
-				m66592_write(m66592, ~check, M66592_BEMPSTS);
-				tmp = control_reg_get(m66592, pipenum);
-				if ((tmp & M66592_INBUFM) == 0) {
-					disable_irq_empty(m66592, pipenum);
-					pipe_irq_disable(m66592, pipenum);
-					pipe_stop(m66592, pipenum);
-					ep = m66592->pipenum2ep[pipenum];
-					req = list_entry(ep->queue.next,
-							 struct m66592_request,
-							 queue);
-					if (!list_empty(&ep->queue))
-						transfer_complete(ep, req, 0);
-				}
-			}
-		}
-	}
-}
-
-static void get_status(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
-__releases(m66592->lock)
-__acquires(m66592->lock)
-{
-	struct m66592_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 = 1 << USB_DEVICE_SELF_POWERED;
-		break;
-	case USB_RECIP_INTERFACE:
-		status = 0;
-		break;
-	case USB_RECIP_ENDPOINT:
-		ep = m66592->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
-		pid = control_reg_get_pid(m66592, ep->pipenum);
-		if (pid == M66592_PID_STALL)
-			status = 1 << USB_ENDPOINT_HALT;
-		else
-			status = 0;
-		break;
-	default:
-		pipe_stall(m66592, 0);
-		return;		/* exit */
-	}
-
-	m66592->ep0_data = cpu_to_le16(status);
-	m66592->ep0_req->buf = &m66592->ep0_data;
-	m66592->ep0_req->length = 2;
-	/* AV: what happens if we get called again before that gets through? */
-	spin_unlock(&m66592->lock);
-	m66592_queue(m66592->gadget.ep0, m66592->ep0_req, GFP_KERNEL);
-	spin_lock(&m66592->lock);
-}
-
-static void clear_feature(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
-{
-	switch (ctrl->bRequestType & USB_RECIP_MASK) {
-	case USB_RECIP_DEVICE:
-		control_end(m66592, 1);
-		break;
-	case USB_RECIP_INTERFACE:
-		control_end(m66592, 1);
-		break;
-	case USB_RECIP_ENDPOINT: {
-		struct m66592_ep *ep;
-		struct m66592_request *req;
-		u16 w_index = le16_to_cpu(ctrl->wIndex);
-
-		ep = m66592->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
-		pipe_stop(m66592, ep->pipenum);
-		control_reg_sqclr(m66592, ep->pipenum);
-
-		control_end(m66592, 1);
-
-		req = list_entry(ep->queue.next,
-		struct m66592_request, queue);
-		if (ep->busy) {
-			ep->busy = 0;
-			if (list_empty(&ep->queue))
-				break;
-			start_packet(ep, req);
-		} else if (!list_empty(&ep->queue))
-			pipe_start(m66592, ep->pipenum);
-		}
-		break;
-	default:
-		pipe_stall(m66592, 0);
-		break;
-	}
-}
-
-static void set_feature(struct m66592 *m66592, 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(m66592, 1);
-			/* Wait for the completion of status stage */
-			do {
-				tmp = m66592_read(m66592, M66592_INTSTS0) &
-								M66592_CTSQ;
-				udelay(1);
-			} while (tmp != M66592_CS_IDST || timeout-- > 0);
-
-			if (tmp == M66592_CS_IDST)
-				m66592_bset(m66592,
-					    le16_to_cpu(ctrl->wIndex >> 8),
-					    M66592_TESTMODE);
-			break;
-		default:
-			pipe_stall(m66592, 0);
-			break;
-		}
-		break;
-	case USB_RECIP_INTERFACE:
-		control_end(m66592, 1);
-		break;
-	case USB_RECIP_ENDPOINT: {
-		struct m66592_ep *ep;
-		u16 w_index = le16_to_cpu(ctrl->wIndex);
-
-		ep = m66592->epaddr2ep[w_index & USB_ENDPOINT_NUMBER_MASK];
-		pipe_stall(m66592, ep->pipenum);
-
-		control_end(m66592, 1);
-		}
-		break;
-	default:
-		pipe_stall(m66592, 0);
-		break;
-	}
-}
-
-/* if return value is true, call class driver's setup() */
-static int setup_packet(struct m66592 *m66592, struct usb_ctrlrequest *ctrl)
-{
-	u16 *p = (u16 *)ctrl;
-	unsigned long offset = M66592_USBREQ;
-	int i, ret = 0;
-
-	/* read fifo */
-	m66592_write(m66592, ~M66592_VALID, M66592_INTSTS0);
-
-	for (i = 0; i < 4; i++)
-		p[i] = m66592_read(m66592, offset + i*2);
-
-	/* check request */
-	if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
-		switch (ctrl->bRequest) {
-		case USB_REQ_GET_STATUS:
-			get_status(m66592, ctrl);
-			break;
-		case USB_REQ_CLEAR_FEATURE:
-			clear_feature(m66592, ctrl);
-			break;
-		case USB_REQ_SET_FEATURE:
-			set_feature(m66592, ctrl);
-			break;
-		default:
-			ret = 1;
-			break;
-		}
-	} else
-		ret = 1;
-	return ret;
-}
-
-static void m66592_update_usb_speed(struct m66592 *m66592)
-{
-	u16 speed = get_usb_speed(m66592);
-
-	switch (speed) {
-	case M66592_HSMODE:
-		m66592->gadget.speed = USB_SPEED_HIGH;
-		break;
-	case M66592_FSMODE:
-		m66592->gadget.speed = USB_SPEED_FULL;
-		break;
-	default:
-		m66592->gadget.speed = USB_SPEED_UNKNOWN;
-		pr_err("USB speed unknown\n");
-	}
-}
-
-static void irq_device_state(struct m66592 *m66592)
-{
-	u16 dvsq;
-
-	dvsq = m66592_read(m66592, M66592_INTSTS0) & M66592_DVSQ;
-	m66592_write(m66592, ~M66592_DVST, M66592_INTSTS0);
-
-	if (dvsq == M66592_DS_DFLT) {	/* bus reset */
-		m66592->driver->disconnect(&m66592->gadget);
-		m66592_update_usb_speed(m66592);
-	}
-	if (m66592->old_dvsq == M66592_DS_CNFG && dvsq != M66592_DS_CNFG)
-		m66592_update_usb_speed(m66592);
-	if ((dvsq == M66592_DS_CNFG || dvsq == M66592_DS_ADDS)
-			&& m66592->gadget.speed == USB_SPEED_UNKNOWN)
-		m66592_update_usb_speed(m66592);
-
-	m66592->old_dvsq = dvsq;
-}
-
-static void irq_control_stage(struct m66592 *m66592)
-__releases(m66592->lock)
-__acquires(m66592->lock)
-{
-	struct usb_ctrlrequest ctrl;
-	u16 ctsq;
-
-	ctsq = m66592_read(m66592, M66592_INTSTS0) & M66592_CTSQ;
-	m66592_write(m66592, ~M66592_CTRT, M66592_INTSTS0);
-
-	switch (ctsq) {
-	case M66592_CS_IDST: {
-		struct m66592_ep *ep;
-		struct m66592_request *req;
-		ep = &m66592->ep[0];
-		req = list_entry(ep->queue.next, struct m66592_request, queue);
-		transfer_complete(ep, req, 0);
-		}
-		break;
-
-	case M66592_CS_RDDS:
-	case M66592_CS_WRDS:
-	case M66592_CS_WRND:
-		if (setup_packet(m66592, &ctrl)) {
-			spin_unlock(&m66592->lock);
-			if (m66592->driver->setup(&m66592->gadget, &ctrl) < 0)
-				pipe_stall(m66592, 0);
-			spin_lock(&m66592->lock);
-		}
-		break;
-	case M66592_CS_RDSS:
-	case M66592_CS_WRSS:
-		control_end(m66592, 0);
-		break;
-	default:
-		pr_err("ctrl_stage: unexpect ctsq(%x)\n", ctsq);
-		break;
-	}
-}
-
-static irqreturn_t m66592_irq(int irq, void *_m66592)
-{
-	struct m66592 *m66592 = _m66592;
-	u16 intsts0;
-	u16 intenb0;
-	u16 brdysts, nrdysts, bempsts;
-	u16 brdyenb, nrdyenb, bempenb;
-	u16 savepipe;
-	u16 mask0;
-
-	spin_lock(&m66592->lock);
-
-	intsts0 = m66592_read(m66592, M66592_INTSTS0);
-	intenb0 = m66592_read(m66592, M66592_INTENB0);
-
-	if (m66592->pdata->on_chip && !intsts0 && !intenb0) {
-		/*
-		 * When USB clock stops, it cannot read register. Even if a
-		 * clock stops, the interrupt occurs. So this driver turn on
-		 * a clock by this timing and do re-reading of register.
-		 */
-		m66592_start_xclock(m66592);
-		intsts0 = m66592_read(m66592, M66592_INTSTS0);
-		intenb0 = m66592_read(m66592, M66592_INTENB0);
-	}
-
-	savepipe = m66592_read(m66592, M66592_CFIFOSEL);
-
-	mask0 = intsts0 & intenb0;
-	if (mask0) {
-		brdysts = m66592_read(m66592, M66592_BRDYSTS);
-		nrdysts = m66592_read(m66592, M66592_NRDYSTS);
-		bempsts = m66592_read(m66592, M66592_BEMPSTS);
-		brdyenb = m66592_read(m66592, M66592_BRDYENB);
-		nrdyenb = m66592_read(m66592, M66592_NRDYENB);
-		bempenb = m66592_read(m66592, M66592_BEMPENB);
-
-		if (mask0 & M66592_VBINT) {
-			m66592_write(m66592,  0xffff & ~M66592_VBINT,
-					M66592_INTSTS0);
-			m66592_start_xclock(m66592);
-
-			/* start vbus sampling */
-			m66592->old_vbus = m66592_read(m66592, M66592_INTSTS0)
-					& M66592_VBSTS;
-			m66592->scount = M66592_MAX_SAMPLING;
-
-			mod_timer(&m66592->timer,
-					jiffies + msecs_to_jiffies(50));
-		}
-		if (intsts0 & M66592_DVSQ)
-			irq_device_state(m66592);
-
-		if ((intsts0 & M66592_BRDY) && (intenb0 & M66592_BRDYE)
-				&& (brdysts & brdyenb)) {
-			irq_pipe_ready(m66592, brdysts, brdyenb);
-		}
-		if ((intsts0 & M66592_BEMP) && (intenb0 & M66592_BEMPE)
-				&& (bempsts & bempenb)) {
-			irq_pipe_empty(m66592, bempsts, bempenb);
-		}
-
-		if (intsts0 & M66592_CTRT)
-			irq_control_stage(m66592);
-	}
-
-	m66592_write(m66592, savepipe, M66592_CFIFOSEL);
-
-	spin_unlock(&m66592->lock);
-	return IRQ_HANDLED;
-}
-
-static void m66592_timer(unsigned long _m66592)
-{
-	struct m66592 *m66592 = (struct m66592 *)_m66592;
-	unsigned long flags;
-	u16 tmp;
-
-	spin_lock_irqsave(&m66592->lock, flags);
-	tmp = m66592_read(m66592, M66592_SYSCFG);
-	if (!(tmp & M66592_RCKE)) {
-		m66592_bset(m66592, M66592_RCKE | M66592_PLLC, M66592_SYSCFG);
-		udelay(10);
-		m66592_bset(m66592, M66592_SCKE, M66592_SYSCFG);
-	}
-	if (m66592->scount > 0) {
-		tmp = m66592_read(m66592, M66592_INTSTS0) & M66592_VBSTS;
-		if (tmp == m66592->old_vbus) {
-			m66592->scount--;
-			if (m66592->scount == 0) {
-				if (tmp == M66592_VBSTS)
-					m66592_usb_connect(m66592);
-				else
-					m66592_usb_disconnect(m66592);
-			} else {
-				mod_timer(&m66592->timer,
-					jiffies + msecs_to_jiffies(50));
-			}
-		} else {
-			m66592->scount = M66592_MAX_SAMPLING;
-			m66592->old_vbus = tmp;
-			mod_timer(&m66592->timer,
-					jiffies + msecs_to_jiffies(50));
-		}
-	}
-	spin_unlock_irqrestore(&m66592->lock, flags);
-}
-
-/*-------------------------------------------------------------------------*/
-static int m66592_enable(struct usb_ep *_ep,
-			 const struct usb_endpoint_descriptor *desc)
-{
-	struct m66592_ep *ep;
-
-	ep = container_of(_ep, struct m66592_ep, ep);
-	return alloc_pipe_config(ep, desc);
-}
-
-static int m66592_disable(struct usb_ep *_ep)
-{
-	struct m66592_ep *ep;
-	struct m66592_request *req;
-	unsigned long flags;
-
-	ep = container_of(_ep, struct m66592_ep, ep);
-	BUG_ON(!ep);
-
-	while (!list_empty(&ep->queue)) {
-		req = list_entry(ep->queue.next, struct m66592_request, queue);
-		spin_lock_irqsave(&ep->m66592->lock, flags);
-		transfer_complete(ep, req, -ECONNRESET);
-		spin_unlock_irqrestore(&ep->m66592->lock, flags);
-	}
-
-	pipe_irq_disable(ep->m66592, ep->pipenum);
-	return free_pipe_config(ep);
-}
-
-static struct usb_request *m66592_alloc_request(struct usb_ep *_ep,
-						gfp_t gfp_flags)
-{
-	struct m66592_request *req;
-
-	req = kzalloc(sizeof(struct m66592_request), gfp_flags);
-	if (!req)
-		return NULL;
-
-	INIT_LIST_HEAD(&req->queue);
-
-	return &req->req;
-}
-
-static void m66592_free_request(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct m66592_request *req;
-
-	req = container_of(_req, struct m66592_request, req);
-	kfree(req);
-}
-
-static int m66592_queue(struct usb_ep *_ep, struct usb_request *_req,
-			gfp_t gfp_flags)
-{
-	struct m66592_ep *ep;
-	struct m66592_request *req;
-	unsigned long flags;
-	int request = 0;
-
-	ep = container_of(_ep, struct m66592_ep, ep);
-	req = container_of(_req, struct m66592_request, req);
-
-	if (ep->m66592->gadget.speed == USB_SPEED_UNKNOWN)
-		return -ESHUTDOWN;
-
-	spin_lock_irqsave(&ep->m66592->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->m66592->lock, flags);
-
-	return 0;
-}
-
-static int m66592_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct m66592_ep *ep;
-	struct m66592_request *req;
-	unsigned long flags;
-
-	ep = container_of(_ep, struct m66592_ep, ep);
-	req = container_of(_req, struct m66592_request, req);
-
-	spin_lock_irqsave(&ep->m66592->lock, flags);
-	if (!list_empty(&ep->queue))
-		transfer_complete(ep, req, -ECONNRESET);
-	spin_unlock_irqrestore(&ep->m66592->lock, flags);
-
-	return 0;
-}
-
-static int m66592_set_halt(struct usb_ep *_ep, int value)
-{
-	struct m66592_ep *ep;
-	struct m66592_request *req;
-	unsigned long flags;
-	int ret = 0;
-
-	ep = container_of(_ep, struct m66592_ep, ep);
-	req = list_entry(ep->queue.next, struct m66592_request, queue);
-
-	spin_lock_irqsave(&ep->m66592->lock, flags);
-	if (!list_empty(&ep->queue)) {
-		ret = -EAGAIN;
-		goto out;
-	}
-	if (value) {
-		ep->busy = 1;
-		pipe_stall(ep->m66592, ep->pipenum);
-	} else {
-		ep->busy = 0;
-		pipe_stop(ep->m66592, ep->pipenum);
-	}
-
-out:
-	spin_unlock_irqrestore(&ep->m66592->lock, flags);
-	return ret;
-}
-
-static void m66592_fifo_flush(struct usb_ep *_ep)
-{
-	struct m66592_ep *ep;
-	unsigned long flags;
-
-	ep = container_of(_ep, struct m66592_ep, ep);
-	spin_lock_irqsave(&ep->m66592->lock, flags);
-	if (list_empty(&ep->queue) && !ep->busy) {
-		pipe_stop(ep->m66592, ep->pipenum);
-		m66592_bclr(ep->m66592, M66592_BCLR, ep->fifoctr);
-	}
-	spin_unlock_irqrestore(&ep->m66592->lock, flags);
-}
-
-static struct usb_ep_ops m66592_ep_ops = {
-	.enable		= m66592_enable,
-	.disable	= m66592_disable,
-
-	.alloc_request	= m66592_alloc_request,
-	.free_request	= m66592_free_request,
-
-	.queue		= m66592_queue,
-	.dequeue	= m66592_dequeue,
-
-	.set_halt	= m66592_set_halt,
-	.fifo_flush	= m66592_fifo_flush,
-};
-
-/*-------------------------------------------------------------------------*/
-static int m66592_udc_start(struct usb_gadget *g,
-		struct usb_gadget_driver *driver)
-{
-	struct m66592 *m66592 = to_m66592(g);
-
-	/* hook up the driver */
-	driver->driver.bus = NULL;
-	m66592->driver = driver;
-
-	m66592_bset(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0);
-	if (m66592_read(m66592, M66592_INTSTS0) & M66592_VBSTS) {
-		m66592_start_xclock(m66592);
-		/* start vbus sampling */
-		m66592->old_vbus = m66592_read(m66592,
-					 M66592_INTSTS0) & M66592_VBSTS;
-		m66592->scount = M66592_MAX_SAMPLING;
-		mod_timer(&m66592->timer, jiffies + msecs_to_jiffies(50));
-	}
-
-	return 0;
-}
-
-static int m66592_udc_stop(struct usb_gadget *g,
-		struct usb_gadget_driver *driver)
-{
-	struct m66592 *m66592 = to_m66592(g);
-
-	m66592_bclr(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0);
-
-	init_controller(m66592);
-	disable_controller(m66592);
-
-	m66592->driver = NULL;
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-static int m66592_get_frame(struct usb_gadget *_gadget)
-{
-	struct m66592 *m66592 = gadget_to_m66592(_gadget);
-	return m66592_read(m66592, M66592_FRMNUM) & 0x03FF;
-}
-
-static int m66592_pullup(struct usb_gadget *gadget, int is_on)
-{
-	struct m66592 *m66592 = gadget_to_m66592(gadget);
-	unsigned long flags;
-
-	spin_lock_irqsave(&m66592->lock, flags);
-	if (is_on)
-		m66592_bset(m66592, M66592_DPRPU, M66592_SYSCFG);
-	else
-		m66592_bclr(m66592, M66592_DPRPU, M66592_SYSCFG);
-	spin_unlock_irqrestore(&m66592->lock, flags);
-
-	return 0;
-}
-
-static const struct usb_gadget_ops m66592_gadget_ops = {
-	.get_frame		= m66592_get_frame,
-	.udc_start		= m66592_udc_start,
-	.udc_stop		= m66592_udc_stop,
-	.pullup			= m66592_pullup,
-};
-
-static int __exit m66592_remove(struct platform_device *pdev)
-{
-	struct m66592		*m66592 = platform_get_drvdata(pdev);
-
-	usb_del_gadget_udc(&m66592->gadget);
-
-	del_timer_sync(&m66592->timer);
-	iounmap(m66592->reg);
-	free_irq(platform_get_irq(pdev, 0), m66592);
-	m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
-	if (m66592->pdata->on_chip) {
-		clk_disable(m66592->clk);
-		clk_put(m66592->clk);
-	}
-	kfree(m66592);
-	return 0;
-}
-
-static void nop_completion(struct usb_ep *ep, struct usb_request *r)
-{
-}
-
-static int m66592_probe(struct platform_device *pdev)
-{
-	struct resource *res, *ires;
-	void __iomem *reg = NULL;
-	struct m66592 *m66592 = NULL;
-	char clk_name[8];
-	int ret = 0;
-	int i;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		ret = -ENODEV;
-		pr_err("platform_get_resource error.\n");
-		goto clean_up;
-	}
-
-	ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!ires) {
-		ret = -ENODEV;
-		dev_err(&pdev->dev,
-			"platform_get_resource IORESOURCE_IRQ error.\n");
-		goto clean_up;
-	}
-
-	reg = ioremap(res->start, resource_size(res));
-	if (reg == NULL) {
-		ret = -ENOMEM;
-		pr_err("ioremap error.\n");
-		goto clean_up;
-	}
-
-	if (dev_get_platdata(&pdev->dev) == NULL) {
-		dev_err(&pdev->dev, "no platform data\n");
-		ret = -ENODEV;
-		goto clean_up;
-	}
-
-	/* initialize ucd */
-	m66592 = kzalloc(sizeof(struct m66592), GFP_KERNEL);
-	if (m66592 == NULL) {
-		ret = -ENOMEM;
-		goto clean_up;
-	}
-
-	m66592->pdata = dev_get_platdata(&pdev->dev);
-	m66592->irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
-
-	spin_lock_init(&m66592->lock);
-	platform_set_drvdata(pdev, m66592);
-
-	m66592->gadget.ops = &m66592_gadget_ops;
-	m66592->gadget.max_speed = USB_SPEED_HIGH;
-	m66592->gadget.name = udc_name;
-
-	init_timer(&m66592->timer);
-	m66592->timer.function = m66592_timer;
-	m66592->timer.data = (unsigned long)m66592;
-	m66592->reg = reg;
-
-	ret = request_irq(ires->start, m66592_irq, IRQF_SHARED,
-			udc_name, m66592);
-	if (ret < 0) {
-		pr_err("request_irq error (%d)\n", ret);
-		goto clean_up;
-	}
-
-	if (m66592->pdata->on_chip) {
-		snprintf(clk_name, sizeof(clk_name), "usbf%d", pdev->id);
-		m66592->clk = clk_get(&pdev->dev, clk_name);
-		if (IS_ERR(m66592->clk)) {
-			dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
-				clk_name);
-			ret = PTR_ERR(m66592->clk);
-			goto clean_up2;
-		}
-		clk_enable(m66592->clk);
-	}
-
-	INIT_LIST_HEAD(&m66592->gadget.ep_list);
-	m66592->gadget.ep0 = &m66592->ep[0].ep;
-	INIT_LIST_HEAD(&m66592->gadget.ep0->ep_list);
-	for (i = 0; i < M66592_MAX_NUM_PIPE; i++) {
-		struct m66592_ep *ep = &m66592->ep[i];
-
-		if (i != 0) {
-			INIT_LIST_HEAD(&m66592->ep[i].ep.ep_list);
-			list_add_tail(&m66592->ep[i].ep.ep_list,
-					&m66592->gadget.ep_list);
-		}
-		ep->m66592 = m66592;
-		INIT_LIST_HEAD(&ep->queue);
-		ep->ep.name = m66592_ep_name[i];
-		ep->ep.ops = &m66592_ep_ops;
-		usb_ep_set_maxpacket_limit(&ep->ep, 512);
-	}
-	usb_ep_set_maxpacket_limit(&m66592->ep[0].ep, 64);
-	m66592->ep[0].pipenum = 0;
-	m66592->ep[0].fifoaddr = M66592_CFIFO;
-	m66592->ep[0].fifosel = M66592_CFIFOSEL;
-	m66592->ep[0].fifoctr = M66592_CFIFOCTR;
-	m66592->ep[0].fifotrn = 0;
-	m66592->ep[0].pipectr = get_pipectr_addr(0);
-	m66592->pipenum2ep[0] = &m66592->ep[0];
-	m66592->epaddr2ep[0] = &m66592->ep[0];
-
-	m66592->ep0_req = m66592_alloc_request(&m66592->ep[0].ep, GFP_KERNEL);
-	if (m66592->ep0_req == NULL) {
-		ret = -ENOMEM;
-		goto clean_up3;
-	}
-	m66592->ep0_req->complete = nop_completion;
-
-	init_controller(m66592);
-
-	ret = usb_add_gadget_udc(&pdev->dev, &m66592->gadget);
-	if (ret)
-		goto err_add_udc;
-
-	dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
-	return 0;
-
-err_add_udc:
-	m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
-
-clean_up3:
-	if (m66592->pdata->on_chip) {
-		clk_disable(m66592->clk);
-		clk_put(m66592->clk);
-	}
-clean_up2:
-	free_irq(ires->start, m66592);
-clean_up:
-	if (m66592) {
-		if (m66592->ep0_req)
-			m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
-		kfree(m66592);
-	}
-	if (reg)
-		iounmap(reg);
-
-	return ret;
-}
-
-/*-------------------------------------------------------------------------*/
-static struct platform_driver m66592_driver = {
-	.remove =	__exit_p(m66592_remove),
-	.driver		= {
-		.name =	(char *) udc_name,
-		.owner	= THIS_MODULE,
-	},
-};
-
-module_platform_driver_probe(m66592_driver, m66592_probe);