[ARM] 5120/1: pxa: correct platform driver names for PXA25x and PXA27x UDC drivers

The pxa2xx_udc.c driver is renamed to pxa25x_udc.c (the platform
driver name changes from pxa2xx-udc to pxa25x-udc) and the
platform driver name of pxa27x_udc.c is fixed to pxa27x-udc.
pxa_device_udc in devices.c is split into pxa25x and pxa27x flavors
and the pxa27x_device_udc is enabled in pxa27x.c.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Nicolas Pitre <nico@cam.org>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Including from Ian Molton:

Fixes for mistakes left over from the PXA2{5,7}X UDC split.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 0 insertions, 2389 deletions

diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
deleted file mode 100644
index 63db96adc0b..00000000000
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ /dev/null
@@ -1,2389 +0,0 @@
-/*
- * linux/drivers/usb/gadget/pxa2xx_udc.c
- * Intel PXA25x and IXP4xx on-chip full speed USB device controllers
- *
- * Copyright (C) 2002 Intrinsyc, Inc. (Frank Becker)
- * Copyright (C) 2003 Robert Schwebel, Pengutronix
- * Copyright (C) 2003 Benedikt Spranger, Pengutronix
- * Copyright (C) 2003 David Brownell
- * Copyright (C) 2003 Joshua Wise
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-/* #define VERBOSE_DEBUG */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/timer.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/mm.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/irq.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-#include <linux/io.h>
-
-#include <asm/byteorder.h>
-#include <asm/dma.h>
-#include <asm/gpio.h>
-#include <asm/system.h>
-#include <asm/mach-types.h>
-#include <asm/unaligned.h>
-
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-/*
- * This driver is PXA25x only.  Grab the right register definitions.
- */
-#ifdef CONFIG_ARCH_PXA
-#include <asm/arch/pxa25x-udc.h>
-#endif
-
-#include <asm/mach/udc_pxa2xx.h>
-
-
-/*
- * This driver handles the USB Device Controller (UDC) in Intel's PXA 25x
- * series processors.  The UDC for the IXP 4xx series is very similar.
- * There are fifteen endpoints, in addition to ep0.
- *
- * Such controller drivers work with a gadget driver.  The gadget driver
- * returns descriptors, implements configuration and data protocols used
- * by the host to interact with this device, and allocates endpoints to
- * the different protocol interfaces.  The controller driver virtualizes
- * usb hardware so that the gadget drivers will be more portable.
- *
- * This UDC hardware wants to implement a bit too much USB protocol, so
- * it constrains the sorts of USB configuration change events that work.
- * The errata for these chips are misleading; some "fixed" bugs from
- * pxa250 a0/a1 b0/b1/b2 sure act like they're still there.
- *
- * Note that the UDC hardware supports DMA (except on IXP) but that's
- * not used here.  IN-DMA (to host) is simple enough, when the data is
- * suitably aligned (16 bytes) ... the network stack doesn't do that,
- * other software can.  OUT-DMA is buggy in most chip versions, as well
- * as poorly designed (data toggle not automatic).  So this driver won't
- * bother using DMA.  (Mostly-working IN-DMA support was available in
- * kernels before 2.6.23, but was never enabled or well tested.)
- */
-
-#define	DRIVER_VERSION	"30-June-2007"
-#define	DRIVER_DESC	"PXA 25x USB Device Controller driver"
-
-
-static const char driver_name [] = "pxa2xx_udc";
-
-static const char ep0name [] = "ep0";
-
-
-#ifdef CONFIG_ARCH_IXP4XX
-
-/* cpu-specific register addresses are compiled in to this code */
-#ifdef CONFIG_ARCH_PXA
-#error "Can't configure both IXP and PXA"
-#endif
-
-/* IXP doesn't yet support <linux/clk.h> */
-#define clk_get(dev,name)	NULL
-#define clk_enable(clk)		do { } while (0)
-#define clk_disable(clk)	do { } while (0)
-#define clk_put(clk)		do { } while (0)
-
-#endif
-
-#include "pxa2xx_udc.h"
-
-
-#ifdef	CONFIG_USB_PXA2XX_SMALL
-#define SIZE_STR	" (small)"
-#else
-#define SIZE_STR	""
-#endif
-
-/* ---------------------------------------------------------------------------
- *	endpoint related parts of the api to the usb controller hardware,
- *	used by gadget driver; and the inner talker-to-hardware core.
- * ---------------------------------------------------------------------------
- */
-
-static void pxa2xx_ep_fifo_flush (struct usb_ep *ep);
-static void nuke (struct pxa2xx_ep *, int status);
-
-/* one GPIO should be used to detect VBUS from the host */
-static int is_vbus_present(void)
-{
-	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
-
-	if (mach->gpio_vbus) {
-		int value = gpio_get_value(mach->gpio_vbus);
-		return mach->gpio_vbus_inverted ? !value : value;
-	}
-	if (mach->udc_is_connected)
-		return mach->udc_is_connected();
-	return 1;
-}
-
-/* one GPIO should control a D+ pullup, so host sees this device (or not) */
-static void pullup_off(void)
-{
-	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
-
-	if (mach->gpio_pullup)
-		gpio_set_value(mach->gpio_pullup, 0);
-	else if (mach->udc_command)
-		mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT);
-}
-
-static void pullup_on(void)
-{
-	struct pxa2xx_udc_mach_info		*mach = the_controller->mach;
-
-	if (mach->gpio_pullup)
-		gpio_set_value(mach->gpio_pullup, 1);
-	else if (mach->udc_command)
-		mach->udc_command(PXA2XX_UDC_CMD_CONNECT);
-}
-
-static void pio_irq_enable(int bEndpointAddress)
-{
-        bEndpointAddress &= 0xf;
-        if (bEndpointAddress < 8)
-                UICR0 &= ~(1 << bEndpointAddress);
-        else {
-                bEndpointAddress -= 8;
-                UICR1 &= ~(1 << bEndpointAddress);
-	}
-}
-
-static void pio_irq_disable(int bEndpointAddress)
-{
-        bEndpointAddress &= 0xf;
-        if (bEndpointAddress < 8)
-                UICR0 |= 1 << bEndpointAddress;
-        else {
-                bEndpointAddress -= 8;
-                UICR1 |= 1 << bEndpointAddress;
-        }
-}
-
-/* The UDCCR reg contains mask and interrupt status bits,
- * so using '|=' isn't safe as it may ack an interrupt.
- */
-#define UDCCR_MASK_BITS         (UDCCR_REM | UDCCR_SRM | UDCCR_UDE)
-
-static inline void udc_set_mask_UDCCR(int mask)
-{
-	UDCCR = (UDCCR & UDCCR_MASK_BITS) | (mask & UDCCR_MASK_BITS);
-}
-
-static inline void udc_clear_mask_UDCCR(int mask)
-{
-	UDCCR = (UDCCR & UDCCR_MASK_BITS) & ~(mask & UDCCR_MASK_BITS);
-}
-
-static inline void udc_ack_int_UDCCR(int mask)
-{
-	/* udccr contains the bits we dont want to change */
-	__u32 udccr = UDCCR & UDCCR_MASK_BITS;
-
-	UDCCR = udccr | (mask & ~UDCCR_MASK_BITS);
-}
-
-/*
- * endpoint enable/disable
- *
- * we need to verify the descriptors used to enable endpoints.  since pxa2xx
- * endpoint configurations are fixed, and are pretty much always enabled,
- * there's not a lot to manage here.
- *
- * because pxa2xx can't selectively initialize bulk (or interrupt) endpoints,
- * (resetting endpoint halt and toggle), SET_INTERFACE is unusable except
- * for a single interface (with only the default altsetting) and for gadget
- * drivers that don't halt endpoints (not reset by set_interface).  that also
- * means that if you use ISO, you must violate the USB spec rule that all
- * iso endpoints must be in non-default altsettings.
- */
-static int pxa2xx_ep_enable (struct usb_ep *_ep,
-		const struct usb_endpoint_descriptor *desc)
-{
-	struct pxa2xx_ep        *ep;
-	struct pxa2xx_udc       *dev;
-
-	ep = container_of (_ep, struct pxa2xx_ep, ep);
-	if (!_ep || !desc || ep->desc || _ep->name == ep0name
-			|| desc->bDescriptorType != USB_DT_ENDPOINT
-			|| ep->bEndpointAddress != desc->bEndpointAddress
-			|| ep->fifo_size < le16_to_cpu
-						(desc->wMaxPacketSize)) {
-		DMSG("%s, bad ep or descriptor\n", __func__);
-		return -EINVAL;
-	}
-
-	/* xfer types must match, except that interrupt ~= bulk */
-	if (ep->bmAttributes != desc->bmAttributes
-			&& ep->bmAttributes != USB_ENDPOINT_XFER_BULK
-			&& desc->bmAttributes != USB_ENDPOINT_XFER_INT) {
-		DMSG("%s, %s type mismatch\n", __func__, _ep->name);
-		return -EINVAL;
-	}
-
-	/* hardware _could_ do smaller, but driver doesn't */
-	if ((desc->bmAttributes == USB_ENDPOINT_XFER_BULK
-				&& le16_to_cpu (desc->wMaxPacketSize)
-						!= BULK_FIFO_SIZE)
-			|| !desc->wMaxPacketSize) {
-		DMSG("%s, bad %s maxpacket\n", __func__, _ep->name);
-		return -ERANGE;
-	}
-
-	dev = ep->dev;
-	if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) {
-		DMSG("%s, bogus device state\n", __func__);
-		return -ESHUTDOWN;
-	}
-
-	ep->desc = desc;
-	ep->stopped = 0;
-	ep->pio_irqs = 0;
-	ep->ep.maxpacket = le16_to_cpu (desc->wMaxPacketSize);
-
-	/* flush fifo (mostly for OUT buffers) */
-	pxa2xx_ep_fifo_flush (_ep);
-
-	/* ... reset halt state too, if we could ... */
-
-	DBG(DBG_VERBOSE, "enabled %s\n", _ep->name);
-	return 0;
-}
-
-static int pxa2xx_ep_disable (struct usb_ep *_ep)
-{
-	struct pxa2xx_ep	*ep;
-	unsigned long		flags;
-
-	ep = container_of (_ep, struct pxa2xx_ep, ep);
-	if (!_ep || !ep->desc) {
-		DMSG("%s, %s not enabled\n", __func__,
-			_ep ? ep->ep.name : NULL);
-		return -EINVAL;
-	}
-	local_irq_save(flags);
-
-	nuke (ep, -ESHUTDOWN);
-
-	/* flush fifo (mostly for IN buffers) */
-	pxa2xx_ep_fifo_flush (_ep);
-
-	ep->desc = NULL;
-	ep->stopped = 1;
-
-	local_irq_restore(flags);
-	DBG(DBG_VERBOSE, "%s disabled\n", _ep->name);
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* for the pxa2xx, these can just wrap kmalloc/kfree.  gadget drivers
- * must still pass correctly initialized endpoints, since other controller
- * drivers may care about how it's currently set up (dma issues etc).
- */
-
-/*
- *	pxa2xx_ep_alloc_request - allocate a request data structure
- */
-static struct usb_request *
-pxa2xx_ep_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags)
-{
-	struct pxa2xx_request *req;
-
-	req = kzalloc(sizeof(*req), gfp_flags);
-	if (!req)
-		return NULL;
-
-	INIT_LIST_HEAD (&req->queue);
-	return &req->req;
-}
-
-
-/*
- *	pxa2xx_ep_free_request - deallocate a request data structure
- */
-static void
-pxa2xx_ep_free_request (struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct pxa2xx_request	*req;
-
-	req = container_of (_req, struct pxa2xx_request, req);
-	WARN_ON (!list_empty (&req->queue));
-	kfree(req);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- *	done - retire a request; caller blocked irqs
- */
-static void done(struct pxa2xx_ep *ep, struct pxa2xx_request *req, int status)
-{
-	unsigned		stopped = ep->stopped;
-
-	list_del_init(&req->queue);
-
-	if (likely (req->req.status == -EINPROGRESS))
-		req->req.status = status;
-	else
-		status = req->req.status;
-
-	if (status && status != -ESHUTDOWN)
-		DBG(DBG_VERBOSE, "complete %s req %p stat %d len %u/%u\n",
-			ep->ep.name, &req->req, status,
-			req->req.actual, req->req.length);
-
-	/* don't modify queue heads during completion callback */
-	ep->stopped = 1;
-	req->req.complete(&ep->ep, &req->req);
-	ep->stopped = stopped;
-}
-
-
-static inline void ep0_idle (struct pxa2xx_udc *dev)
-{
-	dev->ep0state = EP0_IDLE;
-}
-
-static int
-write_packet(volatile u32 *uddr, struct pxa2xx_request *req, unsigned max)
-{
-	u8		*buf;
-	unsigned	length, count;
-
-	buf = req->req.buf + req->req.actual;
-	prefetch(buf);
-
-	/* how big will this packet be? */
-	length = min(req->req.length - req->req.actual, max);
-	req->req.actual += length;
-
-	count = length;
-	while (likely(count--))
-		*uddr = *buf++;
-
-	return length;
-}
-
-/*
- * write to an IN endpoint fifo, as many packets as possible.
- * irqs will use this to write the rest later.
- * caller guarantees at least one packet buffer is ready (or a zlp).
- */
-static int
-write_fifo (struct pxa2xx_ep *ep, struct pxa2xx_request *req)
-{
-	unsigned		max;
-
-	max = le16_to_cpu(ep->desc->wMaxPacketSize);
-	do {
-		unsigned	count;
-		int		is_last, is_short;
-
-		count = write_packet(ep->reg_uddr, req, max);
-
-		/* last packet is usually short (or a zlp) */
-		if (unlikely (count != max))
-			is_last = is_short = 1;
-		else {
-			if (likely(req->req.length != req->req.actual)
-					|| req->req.zero)
-				is_last = 0;
-			else
-				is_last = 1;
-			/* interrupt/iso maxpacket may not fill the fifo */
-			is_short = unlikely (max < ep->fifo_size);
-		}
-
-		DBG(DBG_VERY_NOISY, "wrote %s %d bytes%s%s %d left %p\n",
-			ep->ep.name, count,
-			is_last ? "/L" : "", is_short ? "/S" : "",
-			req->req.length - req->req.actual, req);
-
-		/* let loose that packet. maybe try writing another one,
-		 * double buffering might work.  TSP, TPC, and TFS
-		 * bit values are the same for all normal IN endpoints.
-		 */
-		*ep->reg_udccs = UDCCS_BI_TPC;
-		if (is_short)
-			*ep->reg_udccs = UDCCS_BI_TSP;
-
-		/* requests complete when all IN data is in the FIFO */
-		if (is_last) {
-			done (ep, req, 0);
-			if (list_empty(&ep->queue))
-				pio_irq_disable (ep->bEndpointAddress);
-			return 1;
-		}
-
-		// TODO experiment: how robust can fifo mode tweaking be?
-		// double buffering is off in the default fifo mode, which
-		// prevents TFS from being set here.
-
-	} while (*ep->reg_udccs & UDCCS_BI_TFS);
-	return 0;
-}
-
-/* caller asserts req->pending (ep0 irq status nyet cleared); starts
- * ep0 data stage.  these chips want very simple state transitions.
- */
-static inline
-void ep0start(struct pxa2xx_udc *dev, u32 flags, const char *tag)
-{
-	UDCCS0 = flags|UDCCS0_SA|UDCCS0_OPR;
-	USIR0 = USIR0_IR0;
-	dev->req_pending = 0;
-	DBG(DBG_VERY_NOISY, "%s %s, %02x/%02x\n",
-		__func__, tag, UDCCS0, flags);
-}
-
-static int
-write_ep0_fifo (struct pxa2xx_ep *ep, struct pxa2xx_request *req)
-{
-	unsigned	count;
-	int		is_short;
-
-	count = write_packet(&UDDR0, req, EP0_FIFO_SIZE);
-	ep->dev->stats.write.bytes += count;
-
-	/* last packet "must be" short (or a zlp) */
-	is_short = (count != EP0_FIFO_SIZE);
-
-	DBG(DBG_VERY_NOISY, "ep0in %d bytes %d left %p\n", count,
-		req->req.length - req->req.actual, req);
-
-	if (unlikely (is_short)) {
-		if (ep->dev->req_pending)
-			ep0start(ep->dev, UDCCS0_IPR, "short IN");
-		else
-			UDCCS0 = UDCCS0_IPR;
-
-		count = req->req.length;
-		done (ep, req, 0);
-		ep0_idle(ep->dev);
-#ifndef CONFIG_ARCH_IXP4XX
-#if 1
-		/* This seems to get rid of lost status irqs in some cases:
-		 * host responds quickly, or next request involves config
-		 * change automagic, or should have been hidden, or ...
-		 *
-		 * FIXME get rid of all udelays possible...
-		 */
-		if (count >= EP0_FIFO_SIZE) {
-			count = 100;
-			do {
-				if ((UDCCS0 & UDCCS0_OPR) != 0) {
-					/* clear OPR, generate ack */
-					UDCCS0 = UDCCS0_OPR;
-					break;
-				}
-				count--;
-				udelay(1);
-			} while (count);
-		}
-#endif
-#endif
-	} else if (ep->dev->req_pending)
-		ep0start(ep->dev, 0, "IN");
-	return is_short;
-}
-
-
-/*
- * read_fifo -  unload packet(s) from the fifo we use for usb OUT
- * transfers and put them into the request.  caller should have made
- * sure there's at least one packet ready.
- *
- * returns true if the request completed because of short packet or the
- * request buffer having filled (and maybe overran till end-of-packet).
- */
-static int
-read_fifo (struct pxa2xx_ep *ep, struct pxa2xx_request *req)
-{
-	for (;;) {
-		u32		udccs;
-		u8		*buf;
-		unsigned	bufferspace, count, is_short;
-
-		/* make sure there's a packet in the FIFO.
-		 * UDCCS_{BO,IO}_RPC are all the same bit value.
-		 * UDCCS_{BO,IO}_RNE are all the same bit value.
-		 */
-		udccs = *ep->reg_udccs;
-		if (unlikely ((udccs & UDCCS_BO_RPC) == 0))
-			break;
-		buf = req->req.buf + req->req.actual;
-		prefetchw(buf);
-		bufferspace = req->req.length - req->req.actual;
-
-		/* read all bytes from this packet */
-		if (likely (udccs & UDCCS_BO_RNE)) {
-			count = 1 + (0x0ff & *ep->reg_ubcr);
-			req->req.actual += min (count, bufferspace);
-		} else /* zlp */
-			count = 0;
-		is_short = (count < ep->ep.maxpacket);
-		DBG(DBG_VERY_NOISY, "read %s %02x, %d bytes%s req %p %d/%d\n",
-			ep->ep.name, udccs, count,
-			is_short ? "/S" : "",
-			req, req->req.actual, req->req.length);
-		while (likely (count-- != 0)) {
-			u8	byte = (u8) *ep->reg_uddr;
-
-			if (unlikely (bufferspace == 0)) {
-				/* this happens when the driver's buffer
-				 * is smaller than what the host sent.
-				 * discard the extra data.
-				 */
-				if (req->req.status != -EOVERFLOW)
-					DMSG("%s overflow %d\n",
-						ep->ep.name, count);
-				req->req.status = -EOVERFLOW;
-			} else {
-				*buf++ = byte;
-				bufferspace--;
-			}
-		}
-		*ep->reg_udccs =  UDCCS_BO_RPC;
-		/* RPC/RSP/RNE could now reflect the other packet buffer */
-
-		/* iso is one request per packet */
-		if (ep->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
-			if (udccs & UDCCS_IO_ROF)
-				req->req.status = -EHOSTUNREACH;
-			/* more like "is_done" */
-			is_short = 1;
-		}
-
-		/* completion */
-		if (is_short || req->req.actual == req->req.length) {
-			done (ep, req, 0);
-			if (list_empty(&ep->queue))
-				pio_irq_disable (ep->bEndpointAddress);
-			return 1;
-		}
-
-		/* finished that packet.  the next one may be waiting... */
-	}
-	return 0;
-}
-
-/*
- * special ep0 version of the above.  no UBCR0 or double buffering; status
- * handshaking is magic.  most device protocols don't need control-OUT.
- * CDC vendor commands (and RNDIS), mass storage CB/CBI, and some other
- * protocols do use them.
- */
-static int
-read_ep0_fifo (struct pxa2xx_ep *ep, struct pxa2xx_request *req)
-{
-	u8		*buf, byte;
-	unsigned	bufferspace;
-
-	buf = req->req.buf + req->req.actual;
-	bufferspace = req->req.length - req->req.actual;
-
-	while (UDCCS0 & UDCCS0_RNE) {
-		byte = (u8) UDDR0;
-
-		if (unlikely (bufferspace == 0)) {
-			/* this happens when the driver's buffer
-			 * is smaller than what the host sent.
-			 * discard the extra data.
-			 */
-			if (req->req.status != -EOVERFLOW)
-				DMSG("%s overflow\n", ep->ep.name);
-			req->req.status = -EOVERFLOW;
-		} else {
-			*buf++ = byte;
-			req->req.actual++;
-			bufferspace--;
-		}
-	}
-
-	UDCCS0 = UDCCS0_OPR | UDCCS0_IPR;
-
-	/* completion */
-	if (req->req.actual >= req->req.length)
-		return 1;
-
-	/* finished that packet.  the next one may be waiting... */
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int
-pxa2xx_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
-{
-	struct pxa2xx_request	*req;
-	struct pxa2xx_ep	*ep;
-	struct pxa2xx_udc	*dev;
-	unsigned long		flags;
-
-	req = container_of(_req, struct pxa2xx_request, req);
-	if (unlikely (!_req || !_req->complete || !_req->buf
-			|| !list_empty(&req->queue))) {
-		DMSG("%s, bad params\n", __func__);
-		return -EINVAL;
-	}
-
-	ep = container_of(_ep, struct pxa2xx_ep, ep);
-	if (unlikely (!_ep || (!ep->desc && ep->ep.name != ep0name))) {
-		DMSG("%s, bad ep\n", __func__);
-		return -EINVAL;
-	}
-
-	dev = ep->dev;
-	if (unlikely (!dev->driver
-			|| dev->gadget.speed == USB_SPEED_UNKNOWN)) {
-		DMSG("%s, bogus device state\n", __func__);
-		return -ESHUTDOWN;
-	}
-
-	/* iso is always one packet per request, that's the only way
-	 * we can report per-packet status.  that also helps with dma.
-	 */
-	if (unlikely (ep->bmAttributes == USB_ENDPOINT_XFER_ISOC
-			&& req->req.length > le16_to_cpu
-						(ep->desc->wMaxPacketSize)))
-		return -EMSGSIZE;
-
-	DBG(DBG_NOISY, "%s queue req %p, len %d buf %p\n",
-		_ep->name, _req, _req->length, _req->buf);
-
-	local_irq_save(flags);
-
-	_req->status = -EINPROGRESS;
-	_req->actual = 0;
-
-	/* kickstart this i/o queue? */
-	if (list_empty(&ep->queue) && !ep->stopped) {
-		if (ep->desc == NULL/* ep0 */) {
-			unsigned	length = _req->length;
-
-			switch (dev->ep0state) {
-			case EP0_IN_DATA_PHASE:
-				dev->stats.write.ops++;
-				if (write_ep0_fifo(ep, req))
-					req = NULL;
-				break;
-
-			case EP0_OUT_DATA_PHASE:
-				dev->stats.read.ops++;
-				/* messy ... */
-				if (dev->req_config) {
-					DBG(DBG_VERBOSE, "ep0 config ack%s\n",
-						dev->has_cfr ?  "" : " raced");
-					if (dev->has_cfr)
-						UDCCFR = UDCCFR_AREN|UDCCFR_ACM
-							|UDCCFR_MB1;
-					done(ep, req, 0);
-					dev->ep0state = EP0_END_XFER;
-					local_irq_restore (flags);
-					return 0;
-				}
-				if (dev->req_pending)
-					ep0start(dev, UDCCS0_IPR, "OUT");
-				if (length == 0 || ((UDCCS0 & UDCCS0_RNE) != 0
-						&& read_ep0_fifo(ep, req))) {
-					ep0_idle(dev);
-					done(ep, req, 0);
-					req = NULL;
-				}
-				break;
-
-			default:
-				DMSG("ep0 i/o, odd state %d\n", dev->ep0state);
-				local_irq_restore (flags);
-				return -EL2HLT;
-			}
-		/* can the FIFO can satisfy the request immediately? */
-		} else if ((ep->bEndpointAddress & USB_DIR_IN) != 0) {
-			if ((*ep->reg_udccs & UDCCS_BI_TFS) != 0
-					&& write_fifo(ep, req))
-				req = NULL;
-		} else if ((*ep->reg_udccs & UDCCS_BO_RFS) != 0
-				&& read_fifo(ep, req)) {
-			req = NULL;
-		}
-
-		if (likely (req && ep->desc))
-			pio_irq_enable(ep->bEndpointAddress);
-	}
-
-	/* pio or dma irq handler advances the queue. */
-	if (likely(req != NULL))
-		list_add_tail(&req->queue, &ep->queue);
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-
-/*
- *	nuke - dequeue ALL requests
- */
-static void nuke(struct pxa2xx_ep *ep, int status)
-{
-	struct pxa2xx_request *req;
-
-	/* called with irqs blocked */
-	while (!list_empty(&ep->queue)) {
-		req = list_entry(ep->queue.next,
-				struct pxa2xx_request,
-				queue);
-		done(ep, req, status);
-	}
-	if (ep->desc)
-		pio_irq_disable (ep->bEndpointAddress);
-}
-
-
-/* dequeue JUST ONE request */
-static int pxa2xx_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
-	struct pxa2xx_ep	*ep;
-	struct pxa2xx_request	*req;
-	unsigned long		flags;
-
-	ep = container_of(_ep, struct pxa2xx_ep, ep);
-	if (!_ep || ep->ep.name == ep0name)
-		return -EINVAL;
-
-	local_irq_save(flags);
-
-	/* make sure it's actually queued on this endpoint */
-	list_for_each_entry (req, &ep->queue, queue) {
-		if (&req->req == _req)
-			break;
-	}
-	if (&req->req != _req) {
-		local_irq_restore(flags);
-		return -EINVAL;
-	}
-
-	done(ep, req, -ECONNRESET);
-
-	local_irq_restore(flags);
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int pxa2xx_ep_set_halt(struct usb_ep *_ep, int value)
-{
-	struct pxa2xx_ep	*ep;
-	unsigned long		flags;
-
-	ep = container_of(_ep, struct pxa2xx_ep, ep);
-	if (unlikely (!_ep
-			|| (!ep->desc && ep->ep.name != ep0name))
-			|| ep->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
-		DMSG("%s, bad ep\n", __func__);
-		return -EINVAL;
-	}
-	if (value == 0) {
-		/* this path (reset toggle+halt) is needed to implement
-		 * SET_INTERFACE on normal hardware.  but it can't be
-		 * done from software on the PXA UDC, and the hardware
-		 * forgets to do it as part of SET_INTERFACE automagic.
-		 */
-		DMSG("only host can clear %s halt\n", _ep->name);
-		return -EROFS;
-	}
-
-	local_irq_save(flags);
-
-	if ((ep->bEndpointAddress & USB_DIR_IN) != 0
-			&& ((*ep->reg_udccs & UDCCS_BI_TFS) == 0
-			   || !list_empty(&ep->queue))) {
-		local_irq_restore(flags);
-		return -EAGAIN;
-	}
-
-	/* FST bit is the same for control, bulk in, bulk out, interrupt in */
-	*ep->reg_udccs = UDCCS_BI_FST|UDCCS_BI_FTF;
-
-	/* ep0 needs special care */
-	if (!ep->desc) {
-		start_watchdog(ep->dev);
-		ep->dev->req_pending = 0;
-		ep->dev->ep0state = EP0_STALL;
-
-	/* and bulk/intr endpoints like dropping stalls too */
-	} else {
-		unsigned i;
-		for (i = 0; i < 1000; i += 20) {
-			if (*ep->reg_udccs & UDCCS_BI_SST)
-				break;
-			udelay(20);
-		}
-	}
-	local_irq_restore(flags);
-
-	DBG(DBG_VERBOSE, "%s halt\n", _ep->name);
-	return 0;
-}
-
-static int pxa2xx_ep_fifo_status(struct usb_ep *_ep)
-{
-	struct pxa2xx_ep        *ep;
-
-	ep = container_of(_ep, struct pxa2xx_ep, ep);
-	if (!_ep) {
-		DMSG("%s, bad ep\n", __func__);
-		return -ENODEV;
-	}
-	/* pxa can't report unclaimed bytes from IN fifos */
-	if ((ep->bEndpointAddress & USB_DIR_IN) != 0)
-		return -EOPNOTSUPP;
-	if (ep->dev->gadget.speed == USB_SPEED_UNKNOWN
-			|| (*ep->reg_udccs & UDCCS_BO_RFS) == 0)
-		return 0;
-	else
-		return (*ep->reg_ubcr & 0xfff) + 1;
-}
-
-static void pxa2xx_ep_fifo_flush(struct usb_ep *_ep)
-{
-	struct pxa2xx_ep        *ep;
-
-	ep = container_of(_ep, struct pxa2xx_ep, ep);
-	if (!_ep || ep->ep.name == ep0name || !list_empty(&ep->queue)) {
-		DMSG("%s, bad ep\n", __func__);
-		return;
-	}
-
-	/* toggle and halt bits stay unchanged */
-
-	/* for OUT, just read and discard the FIFO contents. */
-	if ((ep->bEndpointAddress & USB_DIR_IN) == 0) {
-		while (((*ep->reg_udccs) & UDCCS_BO_RNE) != 0)
-			(void) *ep->reg_uddr;
-		return;
-	}
-
-	/* most IN status is the same, but ISO can't stall */
-	*ep->reg_udccs = UDCCS_BI_TPC|UDCCS_BI_FTF|UDCCS_BI_TUR
-		| (ep->bmAttributes == USB_ENDPOINT_XFER_ISOC)
-			? 0 : UDCCS_BI_SST;
-}
-
-
-static struct usb_ep_ops pxa2xx_ep_ops = {
-	.enable		= pxa2xx_ep_enable,
-	.disable	= pxa2xx_ep_disable,
-
-	.alloc_request	= pxa2xx_ep_alloc_request,
-	.free_request	= pxa2xx_ep_free_request,
-
-	.queue		= pxa2xx_ep_queue,
-	.dequeue	= pxa2xx_ep_dequeue,
-
-	.set_halt	= pxa2xx_ep_set_halt,
-	.fifo_status	= pxa2xx_ep_fifo_status,
-	.fifo_flush	= pxa2xx_ep_fifo_flush,
-};
-
-
-/* ---------------------------------------------------------------------------
- *	device-scoped parts of the api to the usb controller hardware
- * ---------------------------------------------------------------------------
- */
-
-static int pxa2xx_udc_get_frame(struct usb_gadget *_gadget)
-{
-	return ((UFNRH & 0x07) << 8) | (UFNRL & 0xff);
-}
-
-static int pxa2xx_udc_wakeup(struct usb_gadget *_gadget)
-{
-	/* host may not have enabled remote wakeup */
-	if ((UDCCS0 & UDCCS0_DRWF) == 0)
-		return -EHOSTUNREACH;
-	udc_set_mask_UDCCR(UDCCR_RSM);
-	return 0;
-}
-
-static void stop_activity(struct pxa2xx_udc *, struct usb_gadget_driver *);
-static void udc_enable (struct pxa2xx_udc *);
-static void udc_disable(struct pxa2xx_udc *);
-
-/* We disable the UDC -- and its 48 MHz clock -- whenever it's not
- * in active use.
- */
-static int pullup(struct pxa2xx_udc *udc)
-{
-	int is_active = udc->vbus && udc->pullup && !udc->suspended;
-	DMSG("%s\n", is_active ? "active" : "inactive");
-	if (is_active) {
-		if (!udc->active) {
-			udc->active = 1;
-			/* Enable clock for USB device */
-			clk_enable(udc->clk);
-			udc_enable(udc);
-		}
-	} else {
-		if (udc->active) {
-			if (udc->gadget.speed != USB_SPEED_UNKNOWN) {
-				DMSG("disconnect %s\n", udc->driver
-					? udc->driver->driver.name
-					: "(no driver)");
-				stop_activity(udc, udc->driver);
-			}
-			udc_disable(udc);
-			/* Disable clock for USB device */
-			clk_disable(udc->clk);
-			udc->active = 0;
-		}
-
-	}
-	return 0;
-}
-
-/* VBUS reporting logically comes from a transceiver */
-static int pxa2xx_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
-{
-	struct pxa2xx_udc	*udc;
-
-	udc = container_of(_gadget, struct pxa2xx_udc, gadget);
-	udc->vbus = (is_active != 0);
-	DMSG("vbus %s\n", is_active ? "supplied" : "inactive");
-	pullup(udc);
-	return 0;
-}
-
-/* drivers may have software control over D+ pullup */
-static int pxa2xx_udc_pullup(struct usb_gadget *_gadget, int is_active)
-{
-	struct pxa2xx_udc	*udc;
-
-	udc = container_of(_gadget, struct pxa2xx_udc, gadget);
-
-	/* not all boards support pullup control */
-	if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
-		return -EOPNOTSUPP;
-
-	udc->pullup = (is_active != 0);
-	pullup(udc);
-	return 0;
-}
-
-static const struct usb_gadget_ops pxa2xx_udc_ops = {
-	.get_frame	= pxa2xx_udc_get_frame,
-	.wakeup		= pxa2xx_udc_wakeup,
-	.vbus_session	= pxa2xx_udc_vbus_session,
-	.pullup		= pxa2xx_udc_pullup,
-
-	// .vbus_draw ... boards may consume current from VBUS, up to
-	// 100-500mA based on config.  the 500uA suspend ceiling means
-	// that exclusively vbus-powered PXA designs violate USB specs.
-};
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef CONFIG_USB_GADGET_DEBUG_FS
-
-static int
-udc_seq_show(struct seq_file *m, void *_d)
-{
-	struct pxa2xx_udc	*dev = m->private;
-	unsigned long		flags;
-	int			i;
-	u32			tmp;
-
-	local_irq_save(flags);
-
-	/* basic device status */
-	seq_printf(m, DRIVER_DESC "\n"
-		"%s version: %s\nGadget driver: %s\nHost %s\n\n",
-		driver_name, DRIVER_VERSION SIZE_STR "(pio)",
-		dev->driver ? dev->driver->driver.name : "(none)",
-		is_vbus_present() ? "full speed" : "disconnected");
-
-	/* registers for device and ep0 */
-	seq_printf(m,
-		"uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n",
-		UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL);
-
-	tmp = UDCCR;
-	seq_printf(m,
-		"udccr %02X =%s%s%s%s%s%s%s%s\n", tmp,
-		(tmp & UDCCR_REM) ? " rem" : "",
-		(tmp & UDCCR_RSTIR) ? " rstir" : "",
-		(tmp & UDCCR_SRM) ? " srm" : "",
-		(tmp & UDCCR_SUSIR) ? " susir" : "",
-		(tmp & UDCCR_RESIR) ? " resir" : "",
-		(tmp & UDCCR_RSM) ? " rsm" : "",
-		(tmp & UDCCR_UDA) ? " uda" : "",
-		(tmp & UDCCR_UDE) ? " ude" : "");
-
-	tmp = UDCCS0;
-	seq_printf(m,
-		"udccs0 %02X =%s%s%s%s%s%s%s%s\n", tmp,
-		(tmp & UDCCS0_SA) ? " sa" : "",
-		(tmp & UDCCS0_RNE) ? " rne" : "",
-		(tmp & UDCCS0_FST) ? " fst" : "",
-		(tmp & UDCCS0_SST) ? " sst" : "",
-		(tmp & UDCCS0_DRWF) ? " dwrf" : "",
-		(tmp & UDCCS0_FTF) ? " ftf" : "",
-		(tmp & UDCCS0_IPR) ? " ipr" : "",
-		(tmp & UDCCS0_OPR) ? " opr" : "");
-
-	if (dev->has_cfr) {
-		tmp = UDCCFR;
-		seq_printf(m,
-			"udccfr %02X =%s%s\n", tmp,
-			(tmp & UDCCFR_AREN) ? " aren" : "",
-			(tmp & UDCCFR_ACM) ? " acm" : "");
-	}
-
-	if (!is_vbus_present() || !dev->driver)
-		goto done;
-
-	seq_printf(m, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n",
-		dev->stats.write.bytes, dev->stats.write.ops,
-		dev->stats.read.bytes, dev->stats.read.ops,
-		dev->stats.irqs);
-
-	/* dump endpoint queues */
-	for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) {
-		struct pxa2xx_ep	*ep = &dev->ep [i];
-		struct pxa2xx_request	*req;
-
-		if (i != 0) {
-			const struct usb_endpoint_descriptor	*desc;
-
-			desc = ep->desc;
-			if (!desc)
-				continue;
-			tmp = *dev->ep [i].reg_udccs;
-			seq_printf(m,
-				"%s max %d %s udccs %02x irqs %lu\n",
-				ep->ep.name, le16_to_cpu(desc->wMaxPacketSize),
-				"pio", tmp, ep->pio_irqs);
-			/* TODO translate all five groups of udccs bits! */
-
-		} else /* ep0 should only have one transfer queued */
-			seq_printf(m, "ep0 max 16 pio irqs %lu\n",
-				ep->pio_irqs);
-
-		if (list_empty(&ep->queue)) {
-			seq_printf(m, "\t(nothing queued)\n");
-			continue;
-		}
-		list_for_each_entry(req, &ep->queue, queue) {
-			seq_printf(m,
-					"\treq %p len %d/%d buf %p\n",
-					&req->req, req->req.actual,
-					req->req.length, req->req.buf);
-		}
-	}
-
-done:
-	local_irq_restore(flags);
-	return 0;
-}
-
-static int
-udc_debugfs_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, udc_seq_show, inode->i_private);
-}
-
-static const struct file_operations debug_fops = {
-	.open		= udc_debugfs_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.owner		= THIS_MODULE,
-};
-
-#define create_debug_files(dev) \
-	do { \
-		dev->debugfs_udc = debugfs_create_file(dev->gadget.name, \
-			S_IRUGO, NULL, dev, &debug_fops); \
-	} while (0)
-#define remove_debug_files(dev) \
-	do { \
-		if (dev->debugfs_udc) \
-			debugfs_remove(dev->debugfs_udc); \
-	} while (0)
-
-#else	/* !CONFIG_USB_GADGET_DEBUG_FILES */
-
-#define create_debug_files(dev) do {} while (0)
-#define remove_debug_files(dev) do {} while (0)
-
-#endif	/* CONFIG_USB_GADGET_DEBUG_FILES */
-
-/*-------------------------------------------------------------------------*/
-
-/*
- *	udc_disable - disable USB device controller
- */
-static void udc_disable(struct pxa2xx_udc *dev)
-{
-	/* block all irqs */
-	udc_set_mask_UDCCR(UDCCR_SRM|UDCCR_REM);
-	UICR0 = UICR1 = 0xff;
-	UFNRH = UFNRH_SIM;
-
-	/* if hardware supports it, disconnect from usb */
-	pullup_off();
-
-	udc_clear_mask_UDCCR(UDCCR_UDE);
-
-	ep0_idle (dev);
-	dev->gadget.speed = USB_SPEED_UNKNOWN;
-}
-
-
-/*
- *	udc_reinit - initialize software state
- */
-static void udc_reinit(struct pxa2xx_udc *dev)
-{
-	u32	i;
-
-	/* device/ep0 records init */
-	INIT_LIST_HEAD (&dev->gadget.ep_list);
-	INIT_LIST_HEAD (&dev->gadget.ep0->ep_list);
-	dev->ep0state = EP0_IDLE;
-
-	/* basic endpoint records init */
-	for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) {
-		struct pxa2xx_ep *ep = &dev->ep[i];
-
-		if (i != 0)
-			list_add_tail (&ep->ep.ep_list, &dev->gadget.ep_list);
-
-		ep->desc = NULL;
-		ep->stopped = 0;
-		INIT_LIST_HEAD (&ep->queue);
-		ep->pio_irqs = 0;
-	}
-
-	/* the rest was statically initialized, and is read-only */
-}
-
-/* until it's enabled, this UDC should be completely invisible
- * to any USB host.
- */
-static void udc_enable (struct pxa2xx_udc *dev)
-{
-	udc_clear_mask_UDCCR(UDCCR_UDE);
-
-	/* try to clear these bits before we enable the udc */
-	udc_ack_int_UDCCR(UDCCR_SUSIR|/*UDCCR_RSTIR|*/UDCCR_RESIR);
-
-	ep0_idle(dev);
-	dev->gadget.speed = USB_SPEED_UNKNOWN;
-	dev->stats.irqs = 0;
-
-	/*
-	 * sequence taken from chapter 12.5.10, PXA250 AppProcDevManual:
-	 * - enable UDC
-	 * - if RESET is already in progress, ack interrupt
-	 * - unmask reset interrupt
-	 */
-	udc_set_mask_UDCCR(UDCCR_UDE);
-	if (!(UDCCR & UDCCR_UDA))
-		udc_ack_int_UDCCR(UDCCR_RSTIR);
-
-	if (dev->has_cfr /* UDC_RES2 is defined */) {
-		/* pxa255 (a0+) can avoid a set_config race that could
-		 * prevent gadget drivers from configuring correctly
-		 */
-		UDCCFR = UDCCFR_ACM | UDCCFR_MB1;
-	} else {
-		/* "USB test mode" for pxa250 errata 40-42 (stepping a0, a1)
-		 * which could result in missing packets and interrupts.
-		 * supposedly one bit per endpoint, controlling whether it
-		 * double buffers or not; ACM/AREN bits fit into the holes.
-		 * zero bits (like USIR0_IRx) disable double buffering.
-		 */
-		UDC_RES1 = 0x00;
-		UDC_RES2 = 0x00;
-	}
-
-	/* enable suspend/resume and reset irqs */
-	udc_clear_mask_UDCCR(UDCCR_SRM | UDCCR_REM);
-
-	/* enable ep0 irqs */
-	UICR0 &= ~UICR0_IM0;
-
-	/* if hardware supports it, pullup D+ and wait for reset */
-	pullup_on();
-}
-
-
-/* when a driver is successfully registered, it will receive
- * control requests including set_configuration(), which enables
- * non-control requests.  then usb traffic follows until a
- * disconnect is reported.  then a host may connect again, or
- * the driver might get unbound.
- */
-int usb_gadget_register_driver(struct usb_gadget_driver *driver)
-{
-	struct pxa2xx_udc	*dev = the_controller;
-	int			retval;
-
-	if (!driver
-			|| driver->speed < USB_SPEED_FULL
-			|| !driver->bind
-			|| !driver->disconnect
-			|| !driver->setup)
-		return -EINVAL;
-	if (!dev)
-		return -ENODEV;
-	if (dev->driver)
-		return -EBUSY;
-
-	/* first hook up the driver ... */
-	dev->driver = driver;
-	dev->gadget.dev.driver = &driver->driver;
-	dev->pullup = 1;
-
-	retval = device_add (&dev->gadget.dev);
-	if (retval) {
-fail:
-		dev->driver = NULL;
-		dev->gadget.dev.driver = NULL;
-		return retval;
-	}
-	retval = driver->bind(&dev->gadget);
-	if (retval) {
-		DMSG("bind to driver %s --> error %d\n",
-				driver->driver.name, retval);
-		device_del (&dev->gadget.dev);
-		goto fail;
-	}
-
-	/* ... then enable host detection and ep0; and we're ready
-	 * for set_configuration as well as eventual disconnect.
-	 */
-	DMSG("registered gadget driver '%s'\n", driver->driver.name);
-	pullup(dev);
-	dump_state(dev);
-	return 0;
-}
-EXPORT_SYMBOL(usb_gadget_register_driver);
-
-static void
-stop_activity(struct pxa2xx_udc *dev, struct usb_gadget_driver *driver)
-{
-	int i;
-
-	/* don't disconnect drivers more than once */
-	if (dev->gadget.speed == USB_SPEED_UNKNOWN)
-		driver = NULL;
-	dev->gadget.speed = USB_SPEED_UNKNOWN;
-
-	/* prevent new request submissions, kill any outstanding requests  */
-	for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) {
-		struct pxa2xx_ep *ep = &dev->ep[i];
-
-		ep->stopped = 1;
-		nuke(ep, -ESHUTDOWN);
-	}
-	del_timer_sync(&dev->timer);
-
-	/* report disconnect; the driver is already quiesced */
-	if (driver)
-		driver->disconnect(&dev->gadget);
-
-	/* re-init driver-visible data structures */
-	udc_reinit(dev);
-}
-
-int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
-{
-	struct pxa2xx_udc	*dev = the_controller;
-
-	if (!dev)
-		return -ENODEV;
-	if (!driver || driver != dev->driver || !driver->unbind)
-		return -EINVAL;
-
-	local_irq_disable();
-	dev->pullup = 0;
-	pullup(dev);
-	stop_activity(dev, driver);
-	local_irq_enable();
-
-	driver->unbind(&dev->gadget);
-	dev->gadget.dev.driver = NULL;
-	dev->driver = NULL;
-
-	device_del (&dev->gadget.dev);
-
-	DMSG("unregistered gadget driver '%s'\n", driver->driver.name);
-	dump_state(dev);
-	return 0;
-}
-EXPORT_SYMBOL(usb_gadget_unregister_driver);
-
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef CONFIG_ARCH_LUBBOCK
-
-/* Lubbock has separate connect and disconnect irqs.  More typical designs
- * use one GPIO as the VBUS IRQ, and another to control the D+ pullup.
- */
-
-static irqreturn_t
-lubbock_vbus_irq(int irq, void *_dev)
-{
-	struct pxa2xx_udc	*dev = _dev;
-	int			vbus;
-
-	dev->stats.irqs++;
-	switch (irq) {
-	case LUBBOCK_USB_IRQ:
-		vbus = 1;
-		disable_irq(LUBBOCK_USB_IRQ);
-		enable_irq(LUBBOCK_USB_DISC_IRQ);
-		break;
-	case LUBBOCK_USB_DISC_IRQ:
-		vbus = 0;
-		disable_irq(LUBBOCK_USB_DISC_IRQ);
-		enable_irq(LUBBOCK_USB_IRQ);
-		break;
-	default:
-		return IRQ_NONE;
-	}
-
-	pxa2xx_udc_vbus_session(&dev->gadget, vbus);
-	return IRQ_HANDLED;
-}
-
-#endif
-
-static irqreturn_t udc_vbus_irq(int irq, void *_dev)
-{
-	struct pxa2xx_udc	*dev = _dev;
-	int			vbus = gpio_get_value(dev->mach->gpio_vbus);
-
-	if (dev->mach->gpio_vbus_inverted)
-		vbus = !vbus;
-
-	pxa2xx_udc_vbus_session(&dev->gadget, vbus);
-	return IRQ_HANDLED;
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-static inline void clear_ep_state (struct pxa2xx_udc *dev)
-{
-	unsigned i;
-
-	/* hardware SET_{CONFIGURATION,INTERFACE} automagic resets endpoint
-	 * fifos, and pending transactions mustn't be continued in any case.
-	 */
-	for (i = 1; i < PXA_UDC_NUM_ENDPOINTS; i++)
-		nuke(&dev->ep[i], -ECONNABORTED);
-}
-
-static void udc_watchdog(unsigned long _dev)
-{
-	struct pxa2xx_udc	*dev = (void *)_dev;
-
-	local_irq_disable();
-	if (dev->ep0state == EP0_STALL
-			&& (UDCCS0 & UDCCS0_FST) == 0
-			&& (UDCCS0 & UDCCS0_SST) == 0) {
-		UDCCS0 = UDCCS0_FST|UDCCS0_FTF;
-		DBG(DBG_VERBOSE, "ep0 re-stall\n");
-		start_watchdog(dev);
-	}
-	local_irq_enable();
-}
-
-static void handle_ep0 (struct pxa2xx_udc *dev)
-{
-	u32			udccs0 = UDCCS0;
-	struct pxa2xx_ep	*ep = &dev->ep [0];
-	struct pxa2xx_request	*req;
-	union {
-		struct usb_ctrlrequest	r;
-		u8			raw [8];
-		u32			word [2];
-	} u;
-
-	if (list_empty(&ep->queue))
-		req = NULL;
-	else
-		req = list_entry(ep->queue.next, struct pxa2xx_request, queue);
-
-	/* clear stall status */
-	if (udccs0 & UDCCS0_SST) {
-		nuke(ep, -EPIPE);
-		UDCCS0 = UDCCS0_SST;
-		del_timer(&dev->timer);
-		ep0_idle(dev);
-	}
-
-	/* previous request unfinished?  non-error iff back-to-back ... */
-	if ((udccs0 & UDCCS0_SA) != 0 && dev->ep0state != EP0_IDLE) {
-		nuke(ep, 0);
-		del_timer(&dev->timer);
-		ep0_idle(dev);
-	}
-
-	switch (dev->ep0state) {
-	case EP0_IDLE:
-		/* late-breaking status? */
-		udccs0 = UDCCS0;
-
-		/* start control request? */
-		if (likely((udccs0 & (UDCCS0_OPR|UDCCS0_SA|UDCCS0_RNE))
-				== (UDCCS0_OPR|UDCCS0_SA|UDCCS0_RNE))) {
-			int i;
-
-			nuke (ep, -EPROTO);
-
-			/* read SETUP packet */
-			for (i = 0; i < 8; i++) {
-				if (unlikely(!(UDCCS0 & UDCCS0_RNE))) {
-bad_setup:
-					DMSG("SETUP %d!\n", i);
-					goto stall;
-				}
-				u.raw [i] = (u8) UDDR0;
-			}
-			if (unlikely((UDCCS0 & UDCCS0_RNE) != 0))
-				goto bad_setup;
-
-got_setup:
-			DBG(DBG_VERBOSE, "SETUP %02x.%02x v%04x i%04x l%04x\n",
-				u.r.bRequestType, u.r.bRequest,
-				le16_to_cpu(u.r.wValue),
-				le16_to_cpu(u.r.wIndex),
-				le16_to_cpu(u.r.wLength));
-
-			/* cope with automagic for some standard requests. */
-			dev->req_std = (u.r.bRequestType & USB_TYPE_MASK)
-						== USB_TYPE_STANDARD;
-			dev->req_config = 0;
-			dev->req_pending = 1;
-			switch (u.r.bRequest) {
-			/* hardware restricts gadget drivers here! */
-			case USB_REQ_SET_CONFIGURATION:
-				if (u.r.bRequestType == USB_RECIP_DEVICE) {
-					/* reflect hardware's automagic
-					 * up to the gadget driver.
-					 */
-config_change:
-					dev->req_config = 1;
-					clear_ep_state(dev);
-					/* if !has_cfr, there's no synch
-					 * else use AREN (later) not SA|OPR
-					 * USIR0_IR0 acts edge sensitive
-					 */
-				}
-				break;
-			/* ... and here, even more ... */
-			case USB_REQ_SET_INTERFACE:
-				if (u.r.bRequestType == USB_RECIP_INTERFACE) {
-					/* udc hardware is broken by design:
-					 *  - altsetting may only be zero;
-					 *  - hw resets all interfaces' eps;
-					 *  - ep reset doesn't include halt(?).
-					 */
-					DMSG("broken set_interface (%d/%d)\n",
-						le16_to_cpu(u.r.wIndex),
-						le16_to_cpu(u.r.wValue));
-					goto config_change;
-				}
-				break;
-			/* hardware was supposed to hide this */
-			case USB_REQ_SET_ADDRESS:
-				if (u.r.bRequestType == USB_RECIP_DEVICE) {
-					ep0start(dev, 0, "address");
-					return;
-				}
-				break;
-			}
-
-			if (u.r.bRequestType & USB_DIR_IN)
-				dev->ep0state = EP0_IN_DATA_PHASE;
-			else
-				dev->ep0state = EP0_OUT_DATA_PHASE;
-
-			i = dev->driver->setup(&dev->gadget, &u.r);
-			if (i < 0) {
-				/* hardware automagic preventing STALL... */
-				if (dev->req_config) {
-					/* hardware sometimes neglects to tell
-					 * tell us about config change events,
-					 * so later ones may fail...
-					 */
-					WARN("config change %02x fail %d?\n",
-						u.r.bRequest, i);
-					return;
-					/* TODO experiment:  if has_cfr,
-					 * hardware didn't ACK; maybe we
-					 * could actually STALL!
-					 */
-				}
-				DBG(DBG_VERBOSE, "protocol STALL, "
-					"%02x err %d\n", UDCCS0, i);
-stall:
-				/* the watchdog timer helps deal with cases
-				 * where udc seems to clear FST wrongly, and
-				 * then NAKs instead of STALLing.
-				 */
-				ep0start(dev, UDCCS0_FST|UDCCS0_FTF, "stall");
-				start_watchdog(dev);
-				dev->ep0state = EP0_STALL;
-
-			/* deferred i/o == no response yet */
-			} else if (dev->req_pending) {
-				if (likely(dev->ep0state == EP0_IN_DATA_PHASE
-						|| dev->req_std || u.r.wLength))
-					ep0start(dev, 0, "defer");
-				else
-					ep0start(dev, UDCCS0_IPR, "defer/IPR");
-			}
-
-			/* expect at least one data or status stage irq */
-			return;
-
-		} else if (likely((udccs0 & (UDCCS0_OPR|UDCCS0_SA))
-				== (UDCCS0_OPR|UDCCS0_SA))) {
-			unsigned i;
-
-			/* pxa210/250 erratum 131 for B0/B1 says RNE lies.
-			 * still observed on a pxa255 a0.
-			 */
-			DBG(DBG_VERBOSE, "e131\n");
-			nuke(ep, -EPROTO);
-
-			/* read SETUP data, but don't trust it too much */
-			for (i = 0; i < 8; i++)
-				u.raw [i] = (u8) UDDR0;
-			if ((u.r.bRequestType & USB_RECIP_MASK)
-					> USB_RECIP_OTHER)
-				goto stall;
-			if (u.word [0] == 0 && u.word [1] == 0)
-				goto stall;
-			goto got_setup;
-		} else {
-			/* some random early IRQ:
-			 * - we acked FST
-			 * - IPR cleared
-			 * - OPR got set, without SA (likely status stage)
-			 */
-			UDCCS0 = udccs0 & (UDCCS0_SA|UDCCS0_OPR);
-		}
-		break;
-	case EP0_IN_DATA_PHASE:			/* GET_DESCRIPTOR etc */
-		if (udccs0 & UDCCS0_OPR) {
-			UDCCS0 = UDCCS0_OPR|UDCCS0_FTF;
-			DBG(DBG_VERBOSE, "ep0in premature status\n");
-			if (req)
-				done(ep, req, 0);
-			ep0_idle(dev);
-		} else /* irq was IPR clearing */ {
-			if (req) {
-				/* this IN packet might finish the request */
-				(void) write_ep0_fifo(ep, req);
-			} /* else IN token before response was written */
-		}
-		break;
-	case EP0_OUT_DATA_PHASE:		/* SET_DESCRIPTOR etc */
-		if (udccs0 & UDCCS0_OPR) {
-			if (req) {
-				/* this OUT packet might finish the request */
-				if (read_ep0_fifo(ep, req))
-					done(ep, req, 0);
-				/* else more OUT packets expected */
-			} /* else OUT token before read was issued */
-		} else /* irq was IPR clearing */ {
-			DBG(DBG_VERBOSE, "ep0out premature status\n");
-			if (req)
-				done(ep, req, 0);
-			ep0_idle(dev);
-		}
-		break;
-	case EP0_END_XFER:
-		if (req)
-			done(ep, req, 0);
-		/* ack control-IN status (maybe in-zlp was skipped)
-		 * also appears after some config change events.
-		 */
-		if (udccs0 & UDCCS0_OPR)
-			UDCCS0 = UDCCS0_OPR;
-		ep0_idle(dev);
-		break;
-	case EP0_STALL:
-		UDCCS0 = UDCCS0_FST;
-		break;
-	}
-	USIR0 = USIR0_IR0;
-}
-
-static void handle_ep(struct pxa2xx_ep *ep)
-{
-	struct pxa2xx_request	*req;
-	int			is_in = ep->bEndpointAddress & USB_DIR_IN;
-	int			completed;
-	u32			udccs, tmp;
-
-	do {
-		completed = 0;
-		if (likely (!list_empty(&ep->queue)))
-			req = list_entry(ep->queue.next,
-					struct pxa2xx_request, queue);
-		else
-			req = NULL;
-
-		// TODO check FST handling
-
-		udccs = *ep->reg_udccs;
-		if (unlikely(is_in)) {	/* irq from TPC, SST, or (ISO) TUR */
-			tmp = UDCCS_BI_TUR;
-			if (likely(ep->bmAttributes == USB_ENDPOINT_XFER_BULK))
-				tmp |= UDCCS_BI_SST;
-			tmp &= udccs;
-			if (likely (tmp))
-				*ep->reg_udccs = tmp;
-			if (req && likely ((udccs & UDCCS_BI_TFS) != 0))
-				completed = write_fifo(ep, req);
-
-		} else {	/* irq from RPC (or for ISO, ROF) */
-			if (likely(ep->bmAttributes == USB_ENDPOINT_XFER_BULK))
-				tmp = UDCCS_BO_SST | UDCCS_BO_DME;
-			else
-				tmp = UDCCS_IO_ROF | UDCCS_IO_DME;
-			tmp &= udccs;
-			if (likely(tmp))
-				*ep->reg_udccs = tmp;
-
-			/* fifos can hold packets, ready for reading... */
-			if (likely(req)) {
-				completed = read_fifo(ep, req);
-			} else
-				pio_irq_disable (ep->bEndpointAddress);
-		}
-		ep->pio_irqs++;
-	} while (completed);
-}
-
-/*
- *	pxa2xx_udc_irq - interrupt handler
- *
- * avoid delays in ep0 processing. the control handshaking isn't always
- * under software control (pxa250c0 and the pxa255 are better), and delays
- * could cause usb protocol errors.
- */
-static irqreturn_t
-pxa2xx_udc_irq(int irq, void *_dev)
-{
-	struct pxa2xx_udc	*dev = _dev;
-	int			handled;
-
-	dev->stats.irqs++;
-	do {
-		u32		udccr = UDCCR;
-
-		handled = 0;
-
-		/* SUSpend Interrupt Request */
-		if (unlikely(udccr & UDCCR_SUSIR)) {
-			udc_ack_int_UDCCR(UDCCR_SUSIR);
-			handled = 1;
-			DBG(DBG_VERBOSE, "USB suspend%s\n", is_vbus_present()
-				? "" : "+disconnect");
-
-			if (!is_vbus_present())
-				stop_activity(dev, dev->driver);
-			else if (dev->gadget.speed != USB_SPEED_UNKNOWN
-					&& dev->driver
-					&& dev->driver->suspend)
-				dev->driver->suspend(&dev->gadget);
-			ep0_idle (dev);
-		}
-
-		/* RESume Interrupt Request */
-		if (unlikely(udccr & UDCCR_RESIR)) {
-			udc_ack_int_UDCCR(UDCCR_RESIR);
-			handled = 1;
-			DBG(DBG_VERBOSE, "USB resume\n");
-
-			if (dev->gadget.speed != USB_SPEED_UNKNOWN
-					&& dev->driver
-					&& dev->driver->resume
-					&& is_vbus_present())
-				dev->driver->resume(&dev->gadget);
-		}
-
-		/* ReSeT Interrupt Request - USB reset */
-		if (unlikely(udccr & UDCCR_RSTIR)) {
-			udc_ack_int_UDCCR(UDCCR_RSTIR);
-			handled = 1;
-
-			if ((UDCCR & UDCCR_UDA) == 0) {
-				DBG(DBG_VERBOSE, "USB reset start\n");
-
-				/* reset driver and endpoints,
-				 * in case that's not yet done
-				 */
-				stop_activity (dev, dev->driver);
-
-			} else {
-				DBG(DBG_VERBOSE, "USB reset end\n");
-				dev->gadget.speed = USB_SPEED_FULL;
-				memset(&dev->stats, 0, sizeof dev->stats);
-				/* driver and endpoints are still reset */
-			}
-
-		} else {
-			u32	usir0 = USIR0 & ~UICR0;
-			u32	usir1 = USIR1 & ~UICR1;
-			int	i;
-
-			if (unlikely (!usir0 && !usir1))
-				continue;
-
-			DBG(DBG_VERY_NOISY, "irq %02x.%02x\n", usir1, usir0);
-
-			/* control traffic */
-			if (usir0 & USIR0_IR0) {
-				dev->ep[0].pio_irqs++;
-				handle_ep0(dev);
-				handled = 1;
-			}
-
-			/* endpoint data transfers */
-			for (i = 0; i < 8; i++) {
-				u32	tmp = 1 << i;
-
-				if (i && (usir0 & tmp)) {
-					handle_ep(&dev->ep[i]);
-					USIR0 |= tmp;
-					handled = 1;
-				}
-				if (usir1 & tmp) {
-					handle_ep(&dev->ep[i+8]);
-					USIR1 |= tmp;
-					handled = 1;
-				}
-			}
-		}
-
-		/* we could also ask for 1 msec SOF (SIR) interrupts */
-
-	} while (handled);
-	return IRQ_HANDLED;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void nop_release (struct device *dev)
-{
-	DMSG("%s %s\n", __func__, dev->bus_id);
-}
-
-/* this uses load-time allocation and initialization (instead of
- * doing it at run-time) to save code, eliminate fault paths, and
- * be more obviously correct.
- */
-static struct pxa2xx_udc memory = {
-	.gadget = {
-		.ops		= &pxa2xx_udc_ops,
-		.ep0		= &memory.ep[0].ep,
-		.name		= driver_name,
-		.dev = {
-			.bus_id		= "gadget",
-			.release	= nop_release,
-		},
-	},
-
-	/* control endpoint */
-	.ep[0] = {
-		.ep = {
-			.name		= ep0name,
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= EP0_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.reg_udccs	= &UDCCS0,
-		.reg_uddr	= &UDDR0,
-	},
-
-	/* first group of endpoints */
-	.ep[1] = {
-		.ep = {
-			.name		= "ep1in-bulk",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= BULK_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= BULK_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 1,
-		.bmAttributes	= USB_ENDPOINT_XFER_BULK,
-		.reg_udccs	= &UDCCS1,
-		.reg_uddr	= &UDDR1,
-	},
-	.ep[2] = {
-		.ep = {
-			.name		= "ep2out-bulk",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= BULK_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= BULK_FIFO_SIZE,
-		.bEndpointAddress = 2,
-		.bmAttributes	= USB_ENDPOINT_XFER_BULK,
-		.reg_udccs	= &UDCCS2,
-		.reg_ubcr	= &UBCR2,
-		.reg_uddr	= &UDDR2,
-	},
-#ifndef CONFIG_USB_PXA2XX_SMALL
-	.ep[3] = {
-		.ep = {
-			.name		= "ep3in-iso",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= ISO_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= ISO_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 3,
-		.bmAttributes	= USB_ENDPOINT_XFER_ISOC,
-		.reg_udccs	= &UDCCS3,
-		.reg_uddr	= &UDDR3,
-	},
-	.ep[4] = {
-		.ep = {
-			.name		= "ep4out-iso",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= ISO_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= ISO_FIFO_SIZE,
-		.bEndpointAddress = 4,
-		.bmAttributes	= USB_ENDPOINT_XFER_ISOC,
-		.reg_udccs	= &UDCCS4,
-		.reg_ubcr	= &UBCR4,
-		.reg_uddr	= &UDDR4,
-	},
-	.ep[5] = {
-		.ep = {
-			.name		= "ep5in-int",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= INT_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= INT_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 5,
-		.bmAttributes	= USB_ENDPOINT_XFER_INT,
-		.reg_udccs	= &UDCCS5,
-		.reg_uddr	= &UDDR5,
-	},
-
-	/* second group of endpoints */
-	.ep[6] = {
-		.ep = {
-			.name		= "ep6in-bulk",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= BULK_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= BULK_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 6,
-		.bmAttributes	= USB_ENDPOINT_XFER_BULK,
-		.reg_udccs	= &UDCCS6,
-		.reg_uddr	= &UDDR6,
-	},
-	.ep[7] = {
-		.ep = {
-			.name		= "ep7out-bulk",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= BULK_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= BULK_FIFO_SIZE,
-		.bEndpointAddress = 7,
-		.bmAttributes	= USB_ENDPOINT_XFER_BULK,
-		.reg_udccs	= &UDCCS7,
-		.reg_ubcr	= &UBCR7,
-		.reg_uddr	= &UDDR7,
-	},
-	.ep[8] = {
-		.ep = {
-			.name		= "ep8in-iso",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= ISO_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= ISO_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 8,
-		.bmAttributes	= USB_ENDPOINT_XFER_ISOC,
-		.reg_udccs	= &UDCCS8,
-		.reg_uddr	= &UDDR8,
-	},
-	.ep[9] = {
-		.ep = {
-			.name		= "ep9out-iso",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= ISO_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= ISO_FIFO_SIZE,
-		.bEndpointAddress = 9,
-		.bmAttributes	= USB_ENDPOINT_XFER_ISOC,
-		.reg_udccs	= &UDCCS9,
-		.reg_ubcr	= &UBCR9,
-		.reg_uddr	= &UDDR9,
-	},
-	.ep[10] = {
-		.ep = {
-			.name		= "ep10in-int",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= INT_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= INT_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 10,
-		.bmAttributes	= USB_ENDPOINT_XFER_INT,
-		.reg_udccs	= &UDCCS10,
-		.reg_uddr	= &UDDR10,
-	},
-
-	/* third group of endpoints */
-	.ep[11] = {
-		.ep = {
-			.name		= "ep11in-bulk",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= BULK_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= BULK_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 11,
-		.bmAttributes	= USB_ENDPOINT_XFER_BULK,
-		.reg_udccs	= &UDCCS11,
-		.reg_uddr	= &UDDR11,
-	},
-	.ep[12] = {
-		.ep = {
-			.name		= "ep12out-bulk",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= BULK_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= BULK_FIFO_SIZE,
-		.bEndpointAddress = 12,
-		.bmAttributes	= USB_ENDPOINT_XFER_BULK,
-		.reg_udccs	= &UDCCS12,
-		.reg_ubcr	= &UBCR12,
-		.reg_uddr	= &UDDR12,
-	},
-	.ep[13] = {
-		.ep = {
-			.name		= "ep13in-iso",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= ISO_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= ISO_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 13,
-		.bmAttributes	= USB_ENDPOINT_XFER_ISOC,
-		.reg_udccs	= &UDCCS13,
-		.reg_uddr	= &UDDR13,
-	},
-	.ep[14] = {
-		.ep = {
-			.name		= "ep14out-iso",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= ISO_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= ISO_FIFO_SIZE,
-		.bEndpointAddress = 14,
-		.bmAttributes	= USB_ENDPOINT_XFER_ISOC,
-		.reg_udccs	= &UDCCS14,
-		.reg_ubcr	= &UBCR14,
-		.reg_uddr	= &UDDR14,
-	},
-	.ep[15] = {
-		.ep = {
-			.name		= "ep15in-int",
-			.ops		= &pxa2xx_ep_ops,
-			.maxpacket	= INT_FIFO_SIZE,
-		},
-		.dev		= &memory,
-		.fifo_size	= INT_FIFO_SIZE,
-		.bEndpointAddress = USB_DIR_IN | 15,
-		.bmAttributes	= USB_ENDPOINT_XFER_INT,
-		.reg_udccs	= &UDCCS15,
-		.reg_uddr	= &UDDR15,
-	},
-#endif /* !CONFIG_USB_PXA2XX_SMALL */
-};
-
-#define CP15R0_VENDOR_MASK	0xffffe000
-
-#if	defined(CONFIG_ARCH_PXA)
-#define CP15R0_XSCALE_VALUE	0x69052000	/* intel/arm/xscale */
-
-#elif	defined(CONFIG_ARCH_IXP4XX)
-#define CP15R0_XSCALE_VALUE	0x69054000	/* intel/arm/ixp4xx */
-
-#endif
-
-#define CP15R0_PROD_MASK	0x000003f0
-#define PXA25x			0x00000100	/* and PXA26x */
-#define PXA210			0x00000120
-
-#define CP15R0_REV_MASK		0x0000000f
-
-#define CP15R0_PRODREV_MASK	(CP15R0_PROD_MASK | CP15R0_REV_MASK)
-
-#define PXA255_A0		0x00000106	/* or PXA260_B1 */
-#define PXA250_C0		0x00000105	/* or PXA26x_B0 */
-#define PXA250_B2		0x00000104
-#define PXA250_B1		0x00000103	/* or PXA260_A0 */
-#define PXA250_B0		0x00000102
-#define PXA250_A1		0x00000101
-#define PXA250_A0		0x00000100
-
-#define PXA210_C0		0x00000125
-#define PXA210_B2		0x00000124
-#define PXA210_B1		0x00000123
-#define PXA210_B0		0x00000122
-#define IXP425_A0		0x000001c1
-#define IXP425_B0		0x000001f1
-#define IXP465_AD		0x00000200
-
-/*
- *	probe - binds to the platform device
- */
-static int __init pxa2xx_udc_probe(struct platform_device *pdev)
-{
-	struct pxa2xx_udc *dev = &memory;
-	int retval, vbus_irq, irq;
-	u32 chiprev;
-
-	/* insist on Intel/ARM/XScale */
-	asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev));
-	if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) {
-		pr_err("%s: not XScale!\n", driver_name);
-		return -ENODEV;
-	}
-
-	/* trigger chiprev-specific logic */
-	switch (chiprev & CP15R0_PRODREV_MASK) {
-#if	defined(CONFIG_ARCH_PXA)
-	case PXA255_A0:
-		dev->has_cfr = 1;
-		break;
-	case PXA250_A0:
-	case PXA250_A1:
-		/* A0/A1 "not released"; ep 13, 15 unusable */
-		/* fall through */
-	case PXA250_B2: case PXA210_B2:
-	case PXA250_B1: case PXA210_B1:
-	case PXA250_B0: case PXA210_B0:
-		/* OUT-DMA is broken ... */
-		/* fall through */
-	case PXA250_C0: case PXA210_C0:
-		break;
-#elif	defined(CONFIG_ARCH_IXP4XX)
-	case IXP425_A0:
-	case IXP425_B0:
-	case IXP465_AD:
-		dev->has_cfr = 1;
-		break;
-#endif
-	default:
-		pr_err("%s: unrecognized processor: %08x\n",
-			driver_name, chiprev);
-		/* iop3xx, ixp4xx, ... */
-		return -ENODEV;
-	}
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
-		return -ENODEV;
-
-	dev->clk = clk_get(&pdev->dev, "UDCCLK");
-	if (IS_ERR(dev->clk)) {
-		retval = PTR_ERR(dev->clk);
-		goto err_clk;
-	}
-
-	pr_debug("%s: IRQ %d%s%s\n", driver_name, irq,
-		dev->has_cfr ? "" : " (!cfr)",
-		SIZE_STR "(pio)"
-		);
-
-	/* other non-static parts of init */
-	dev->dev = &pdev->dev;
-	dev->mach = pdev->dev.platform_data;
-
-	if (dev->mach->gpio_vbus) {
-		if ((retval = gpio_request(dev->mach->gpio_vbus,
-				"pxa2xx_udc GPIO VBUS"))) {
-			dev_dbg(&pdev->dev,
-				"can't get vbus gpio %d, err: %d\n",
-				dev->mach->gpio_vbus, retval);
-			goto err_gpio_vbus;
-		}
-		gpio_direction_input(dev->mach->gpio_vbus);
-		vbus_irq = gpio_to_irq(dev->mach->gpio_vbus);
-	} else
-		vbus_irq = 0;
-
-	if (dev->mach->gpio_pullup) {
-		if ((retval = gpio_request(dev->mach->gpio_pullup,
-				"pca2xx_udc GPIO PULLUP"))) {
-			dev_dbg(&pdev->dev,
-				"can't get pullup gpio %d, err: %d\n",
-				dev->mach->gpio_pullup, retval);
-			goto err_gpio_pullup;
-		}
-		gpio_direction_output(dev->mach->gpio_pullup, 0);
-	}
-
-	init_timer(&dev->timer);
-	dev->timer.function = udc_watchdog;
-	dev->timer.data = (unsigned long) dev;
-
-	device_initialize(&dev->gadget.dev);
-	dev->gadget.dev.parent = &pdev->dev;
-	dev->gadget.dev.dma_mask = pdev->dev.dma_mask;
-
-	the_controller = dev;
-	platform_set_drvdata(pdev, dev);
-
-	udc_disable(dev);
-	udc_reinit(dev);
-
-	dev->vbus = is_vbus_present();
-
-	/* irq setup after old hardware state is cleaned up */
-	retval = request_irq(irq, pxa2xx_udc_irq,
-			IRQF_DISABLED, driver_name, dev);
-	if (retval != 0) {
-		pr_err("%s: can't get irq %d, err %d\n",
-			driver_name, irq, retval);
-		goto err_irq1;
-	}
-	dev->got_irq = 1;
-
-#ifdef CONFIG_ARCH_LUBBOCK
-	if (machine_is_lubbock()) {
-		retval = request_irq(LUBBOCK_USB_DISC_IRQ,
-				lubbock_vbus_irq,
-				IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
-				driver_name, dev);
-		if (retval != 0) {
-			pr_err("%s: can't get irq %i, err %d\n",
-				driver_name, LUBBOCK_USB_DISC_IRQ, retval);
-lubbock_fail0:
-			goto err_irq_lub;
-		}
-		retval = request_irq(LUBBOCK_USB_IRQ,
-				lubbock_vbus_irq,
-				IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
-				driver_name, dev);
-		if (retval != 0) {
-			pr_err("%s: can't get irq %i, err %d\n",
-				driver_name, LUBBOCK_USB_IRQ, retval);
-			free_irq(LUBBOCK_USB_DISC_IRQ, dev);
-			goto lubbock_fail0;
-		}
-	} else
-#endif
-	if (vbus_irq) {
-		retval = request_irq(vbus_irq, udc_vbus_irq,
-				IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
-				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-				driver_name, dev);
-		if (retval != 0) {
-			pr_err("%s: can't get irq %i, err %d\n",
-				driver_name, vbus_irq, retval);
-			goto err_vbus_irq;
-		}
-	}
-	create_debug_files(dev);
-
-	return 0;
-
- err_vbus_irq:
-#ifdef	CONFIG_ARCH_LUBBOCK
-	free_irq(LUBBOCK_USB_DISC_IRQ, dev);
- err_irq_lub:
-#endif
-	free_irq(irq, dev);
- err_irq1:
-	if (dev->mach->gpio_pullup)
-		gpio_free(dev->mach->gpio_pullup);
- err_gpio_pullup:
-	if (dev->mach->gpio_vbus)
-		gpio_free(dev->mach->gpio_vbus);
- err_gpio_vbus:
-	clk_put(dev->clk);
- err_clk:
-	return retval;
-}
-
-static void pxa2xx_udc_shutdown(struct platform_device *_dev)
-{
-	pullup_off();
-}
-
-static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
-{
-	struct pxa2xx_udc *dev = platform_get_drvdata(pdev);
-
-	if (dev->driver)
-		return -EBUSY;
-
-	dev->pullup = 0;
-	pullup(dev);
-
-	remove_debug_files(dev);
-
-	if (dev->got_irq) {
-		free_irq(platform_get_irq(pdev, 0), dev);
-		dev->got_irq = 0;
-	}
-#ifdef CONFIG_ARCH_LUBBOCK
-	if (machine_is_lubbock()) {
-		free_irq(LUBBOCK_USB_DISC_IRQ, dev);
-		free_irq(LUBBOCK_USB_IRQ, dev);
-	}
-#endif
-	if (dev->mach->gpio_vbus) {
-		free_irq(gpio_to_irq(dev->mach->gpio_vbus), dev);
-		gpio_free(dev->mach->gpio_vbus);
-	}
-	if (dev->mach->gpio_pullup)
-		gpio_free(dev->mach->gpio_pullup);
-
-	clk_put(dev->clk);
-
-	platform_set_drvdata(pdev, NULL);
-	the_controller = NULL;
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef	CONFIG_PM
-
-/* USB suspend (controlled by the host) and system suspend (controlled
- * by the PXA) don't necessarily work well together.  If USB is active,
- * the 48 MHz clock is required; so the system can't enter 33 MHz idle
- * mode, or any deeper PM saving state.
- *
- * For now, we punt and forcibly disconnect from the USB host when PXA
- * enters any suspend state.  While we're disconnected, we always disable
- * the 48MHz USB clock ... allowing PXA sleep and/or 33 MHz idle states.
- * Boards without software pullup control shouldn't use those states.
- * VBUS IRQs should probably be ignored so that the PXA device just acts
- * "dead" to USB hosts until system resume.
- */
-static int pxa2xx_udc_suspend(struct platform_device *dev, pm_message_t state)
-{
-	struct pxa2xx_udc	*udc = platform_get_drvdata(dev);
-	unsigned long flags;
-
-	if (!udc->mach->gpio_pullup && !udc->mach->udc_command)
-		WARN("USB host won't detect disconnect!\n");
-	udc->suspended = 1;
-
-	local_irq_save(flags);
-	pullup(udc);
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-static int pxa2xx_udc_resume(struct platform_device *dev)
-{
-	struct pxa2xx_udc	*udc = platform_get_drvdata(dev);
-	unsigned long flags;
-
-	udc->suspended = 0;
-	local_irq_save(flags);
-	pullup(udc);
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-#else
-#define	pxa2xx_udc_suspend	NULL
-#define	pxa2xx_udc_resume	NULL
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-static struct platform_driver udc_driver = {
-	.shutdown	= pxa2xx_udc_shutdown,
-	.remove		= __exit_p(pxa2xx_udc_remove),
-	.suspend	= pxa2xx_udc_suspend,
-	.resume		= pxa2xx_udc_resume,
-	.driver		= {
-		.owner	= THIS_MODULE,
-		.name	= "pxa2xx-udc",
-	},
-};
-
-static int __init udc_init(void)
-{
-	pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
-	return platform_driver_probe(&udc_driver, pxa2xx_udc_probe);
-}
-module_init(udc_init);
-
-static void __exit udc_exit(void)
-{
-	platform_driver_unregister(&udc_driver);
-}
-module_exit(udc_exit);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("Frank Becker, Robert Schwebel, David Brownell");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:pxa2xx-udc");