Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (123 commits)
  wimax/i2400m: add CREDITS and MAINTAINERS entries
  wimax: export linux/wimax.h and linux/wimax/i2400m.h with headers_install
  i2400m: Makefile and Kconfig
  i2400m/SDIO: TX and RX path backends
  i2400m/SDIO: firmware upload backend
  i2400m/SDIO: probe/disconnect, dev init/shutdown and reset backends
  i2400m/SDIO: header for the SDIO subdriver
  i2400m/USB: TX and RX path backends
  i2400m/USB: firmware upload backend
  i2400m/USB: probe/disconnect, dev init/shutdown and reset backends
  i2400m/USB: header for the USB bus driver
  i2400m: debugfs controls
  i2400m: various functions for device management
  i2400m: RX and TX data/control paths
  i2400m: firmware loading and bootrom initialization
  i2400m: linkage to the networking stack
  i2400m: Generic probe/disconnect, reset and message passing
  i2400m: host/device procotol and core driver definitions
  i2400m: documentation and instructions for usage
  wimax: Makefile, Kconfig and docbook linkage for the stack
  ...

3 files changed, 0 insertions, 1696 deletions

diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 864ac56..59c3d23 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -114,18 +114,6 @@ config SENSORS_PCF8591
 	  These devices are hard to detect and rarely found on mainstream
 	  hardware.  If unsure, say N.
 
-config ISP1301_OMAP
-	tristate "Philips ISP1301 with OMAP OTG"
-	depends on ARCH_OMAP_OTG
-	help
-	  If you say yes here you get support for the Philips ISP1301
-	  USB-On-The-Go transceiver working with the OMAP OTG controller.
-	  The ISP1301 is used in products including H2 and H3 development
-	  boards for Texas Instruments OMAP processors.
-	  
-	  This driver can also be built as a module.  If so, the module
-	  will be called isp1301_omap.
-
 config SENSORS_MAX6875
 	tristate "Maxim MAX6875 Power supply supervisor"
 	depends on EXPERIMENTAL
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 8b95f41..83accaaf 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -18,7 +18,6 @@ obj-$(CONFIG_SENSORS_PCA9539)	+= pca9539.o
 obj-$(CONFIG_SENSORS_PCF8574)	+= pcf8574.o
 obj-$(CONFIG_PCF8575)		+= pcf8575.o
 obj-$(CONFIG_SENSORS_PCF8591)	+= pcf8591.o
-obj-$(CONFIG_ISP1301_OMAP)	+= isp1301_omap.o
 obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
 obj-$(CONFIG_MCU_MPC8349EMITX)	+= mcu_mpc8349emitx.o
 
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
deleted file mode 100644
index e0d56ef..0000000
--- a/drivers/i2c/chips/isp1301_omap.c
+++ /dev/null
@@ -1,1683 +0,0 @@
-/*
- * isp1301_omap - ISP 1301 USB transceiver, talking to OMAP OTG controller
- *
- * Copyright (C) 2004 Texas Instruments
- * Copyright (C) 2004 David Brownell
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-#include <linux/usb.h>
-#include <linux/usb/otg.h>
-#include <linux/i2c.h>
-#include <linux/workqueue.h>
-
-#include <asm/irq.h>
-#include <asm/mach-types.h>
-
-#include <mach/usb.h>
-#include <mach/mux.h>
-
-
-#ifndef	DEBUG
-#undef	VERBOSE
-#endif
-
-
-#define	DRIVER_VERSION	"24 August 2004"
-#define	DRIVER_NAME	(isp1301_driver.driver.name)
-
-MODULE_DESCRIPTION("ISP1301 USB OTG Transceiver Driver");
-MODULE_LICENSE("GPL");
-
-struct isp1301 {
-	struct otg_transceiver	otg;
-	struct i2c_client	*client;
-	void			(*i2c_release)(struct device *dev);
-
-	int			irq_type;
-
-	u32			last_otg_ctrl;
-	unsigned		working:1;
-
-	struct timer_list	timer;
-
-	/* use keventd context to change the state for us */
-	struct work_struct	work;
-
-	unsigned long		todo;
-#		define WORK_UPDATE_ISP	0	/* update ISP from OTG */
-#		define WORK_UPDATE_OTG	1	/* update OTG from ISP */
-#		define WORK_HOST_RESUME	4	/* resume host */
-#		define WORK_TIMER	6	/* timer fired */
-#		define WORK_STOP	7	/* don't resubmit */
-};
-
-
-/* bits in OTG_CTRL */
-
-#define	OTG_XCEIV_OUTPUTS \
-	(OTG_ASESSVLD|OTG_BSESSEND|OTG_BSESSVLD|OTG_VBUSVLD|OTG_ID)
-#define	OTG_XCEIV_INPUTS \
-	(OTG_PULLDOWN|OTG_PULLUP|OTG_DRV_VBUS|OTG_PD_VBUS|OTG_PU_VBUS|OTG_PU_ID)
-#define	OTG_CTRL_BITS \
-	(OTG_A_BUSREQ|OTG_A_SETB_HNPEN|OTG_B_BUSREQ|OTG_B_HNPEN|OTG_BUSDROP)
-	/* and OTG_PULLUP is sometimes written */
-
-#define	OTG_CTRL_MASK	(OTG_DRIVER_SEL| \
-	OTG_XCEIV_OUTPUTS|OTG_XCEIV_INPUTS| \
-	OTG_CTRL_BITS)
-
-
-/*-------------------------------------------------------------------------*/
-
-/* board-specific PM hooks */
-
-#if defined(CONFIG_MACH_OMAP_H2) || defined(CONFIG_MACH_OMAP_H3)
-
-#if	defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE)
-
-#include <linux/i2c/tps65010.h>
-
-#else
-
-static inline int tps65010_set_vbus_draw(unsigned mA)
-{
-	pr_debug("tps65010: draw %d mA (STUB)\n", mA);
-	return 0;
-}
-
-#endif
-
-static void enable_vbus_draw(struct isp1301 *isp, unsigned mA)
-{
-	int status = tps65010_set_vbus_draw(mA);
-	if (status < 0)
-		pr_debug("  VBUS %d mA error %d\n", mA, status);
-}
-
-static void enable_vbus_source(struct isp1301 *isp)
-{
-	/* this board won't supply more than 8mA vbus power.
-	 * some boards can switch a 100ma "unit load" (or more).
-	 */
-}
-
-
-/* products will deliver OTG messages with LEDs, GUI, etc */
-static inline void notresponding(struct isp1301 *isp)
-{
-	printk(KERN_NOTICE "OTG device not responding.\n");
-}
-
-
-#endif
-
-#if defined(CONFIG_MACH_OMAP_H4)
-
-static void enable_vbus_draw(struct isp1301 *isp, unsigned mA)
-{
-	/* H4 controls this by DIP switch S2.4; no soft control.
-	 * ON means the charger is always enabled.  Leave it OFF
-	 * unless the OTG port is used only in B-peripheral mode.
-	 */
-}
-
-static void enable_vbus_source(struct isp1301 *isp)
-{
-	/* this board won't supply more than 8mA vbus power.
-	 * some boards can switch a 100ma "unit load" (or more).
-	 */
-}
-
-
-/* products will deliver OTG messages with LEDs, GUI, etc */
-static inline void notresponding(struct isp1301 *isp)
-{
-	printk(KERN_NOTICE "OTG device not responding.\n");
-}
-
-
-#endif
-
-/*-------------------------------------------------------------------------*/
-
-static struct i2c_driver isp1301_driver;
-
-/* smbus apis are used for portability */
-
-static inline u8
-isp1301_get_u8(struct isp1301 *isp, u8 reg)
-{
-	return i2c_smbus_read_byte_data(isp->client, reg + 0);
-}
-
-static inline int
-isp1301_get_u16(struct isp1301 *isp, u8 reg)
-{
-	return i2c_smbus_read_word_data(isp->client, reg);
-}
-
-static inline int
-isp1301_set_bits(struct isp1301 *isp, u8 reg, u8 bits)
-{
-	return i2c_smbus_write_byte_data(isp->client, reg + 0, bits);
-}
-
-static inline int
-isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits)
-{
-	return i2c_smbus_write_byte_data(isp->client, reg + 1, bits);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* identification */
-#define	ISP1301_VENDOR_ID		0x00	/* u16 read */
-#define	ISP1301_PRODUCT_ID		0x02	/* u16 read */
-#define	ISP1301_BCD_DEVICE		0x14	/* u16 read */
-
-#define	I2C_VENDOR_ID_PHILIPS		0x04cc
-#define	I2C_PRODUCT_ID_PHILIPS_1301	0x1301
-
-/* operational registers */
-#define	ISP1301_MODE_CONTROL_1		0x04	/* u8 read, set, +1 clear */
-#	define	MC1_SPEED		(1 << 0)
-#	define	MC1_SUSPEND		(1 << 1)
-#	define	MC1_DAT_SE0		(1 << 2)
-#	define	MC1_TRANSPARENT		(1 << 3)
-#	define	MC1_BDIS_ACON_EN	(1 << 4)
-#	define	MC1_OE_INT_EN		(1 << 5)
-#	define	MC1_UART_EN		(1 << 6)
-#	define	MC1_MASK		0x7f
-#define	ISP1301_MODE_CONTROL_2		0x12	/* u8 read, set, +1 clear */
-#	define	MC2_GLOBAL_PWR_DN	(1 << 0)
-#	define	MC2_SPD_SUSP_CTRL	(1 << 1)
-#	define	MC2_BI_DI		(1 << 2)
-#	define	MC2_TRANSP_BDIR0	(1 << 3)
-#	define	MC2_TRANSP_BDIR1	(1 << 4)
-#	define	MC2_AUDIO_EN		(1 << 5)
-#	define	MC2_PSW_EN		(1 << 6)
-#	define	MC2_EN2V7		(1 << 7)
-#define	ISP1301_OTG_CONTROL_1		0x06	/* u8 read, set, +1 clear */
-#	define	OTG1_DP_PULLUP		(1 << 0)
-#	define	OTG1_DM_PULLUP		(1 << 1)
-#	define	OTG1_DP_PULLDOWN	(1 << 2)
-#	define	OTG1_DM_PULLDOWN	(1 << 3)
-#	define	OTG1_ID_PULLDOWN	(1 << 4)
-#	define	OTG1_VBUS_DRV		(1 << 5)
-#	define	OTG1_VBUS_DISCHRG	(1 << 6)
-#	define	OTG1_VBUS_CHRG		(1 << 7)
-#define	ISP1301_OTG_STATUS		0x10	/* u8 readonly */
-#	define	OTG_B_SESS_END		(1 << 6)
-#	define	OTG_B_SESS_VLD		(1 << 7)
-
-#define	ISP1301_INTERRUPT_SOURCE	0x08	/* u8 read */
-#define	ISP1301_INTERRUPT_LATCH		0x0A	/* u8 read, set, +1 clear */
-
-#define	ISP1301_INTERRUPT_FALLING	0x0C	/* u8 read, set, +1 clear */
-#define	ISP1301_INTERRUPT_RISING	0x0E	/* u8 read, set, +1 clear */
-
-/* same bitfields in all interrupt registers */
-#	define	INTR_VBUS_VLD		(1 << 0)
-#	define	INTR_SESS_VLD		(1 << 1)
-#	define	INTR_DP_HI		(1 << 2)
-#	define	INTR_ID_GND		(1 << 3)
-#	define	INTR_DM_HI		(1 << 4)
-#	define	INTR_ID_FLOAT		(1 << 5)
-#	define	INTR_BDIS_ACON		(1 << 6)
-#	define	INTR_CR_INT		(1 << 7)
-
-/*-------------------------------------------------------------------------*/
-
-static const char *state_string(enum usb_otg_state state)
-{
-	switch (state) {
-	case OTG_STATE_A_IDLE:		return "a_idle";
-	case OTG_STATE_A_WAIT_VRISE:	return "a_wait_vrise";
-	case OTG_STATE_A_WAIT_BCON:	return "a_wait_bcon";
-	case OTG_STATE_A_HOST:		return "a_host";
-	case OTG_STATE_A_SUSPEND:	return "a_suspend";
-	case OTG_STATE_A_PERIPHERAL:	return "a_peripheral";
-	case OTG_STATE_A_WAIT_VFALL:	return "a_wait_vfall";
-	case OTG_STATE_A_VBUS_ERR:	return "a_vbus_err";
-	case OTG_STATE_B_IDLE:		return "b_idle";
-	case OTG_STATE_B_SRP_INIT:	return "b_srp_init";
-	case OTG_STATE_B_PERIPHERAL:	return "b_peripheral";
-	case OTG_STATE_B_WAIT_ACON:	return "b_wait_acon";
-	case OTG_STATE_B_HOST:		return "b_host";
-	default:			return "UNDEFINED";
-	}
-}
-
-static inline const char *state_name(struct isp1301 *isp)
-{
-	return state_string(isp->otg.state);
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* NOTE:  some of this ISP1301 setup is specific to H2 boards;
- * not everything is guarded by board-specific checks, or even using
- * omap_usb_config data to deduce MC1_DAT_SE0 and MC2_BI_DI.
- *
- * ALSO:  this currently doesn't use ISP1301 low-power modes
- * while OTG is running.
- */
-
-static void power_down(struct isp1301 *isp)
-{
-	isp->otg.state = OTG_STATE_UNDEFINED;
-
-	// isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2, MC2_GLOBAL_PWR_DN);
-	isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_SUSPEND);
-
-	isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_ID_PULLDOWN);
-	isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
-}
-
-static void power_up(struct isp1301 *isp)
-{
-	// isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_2, MC2_GLOBAL_PWR_DN);
-	isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1, MC1_SUSPEND);
-
-	/* do this only when cpu is driving transceiver,
-	 * so host won't see a low speed device...
-	 */
-	isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
-}
-
-#define	NO_HOST_SUSPEND
-
-static int host_suspend(struct isp1301 *isp)
-{
-#ifdef	NO_HOST_SUSPEND
-	return 0;
-#else
-	struct device	*dev;
-
-	if (!isp->otg.host)
-		return -ENODEV;
-
-	/* Currently ASSUMES only the OTG port matters;
-	 * other ports could be active...
-	 */
-	dev = isp->otg.host->controller;
-	return dev->driver->suspend(dev, 3, 0);
-#endif
-}
-
-static int host_resume(struct isp1301 *isp)
-{
-#ifdef	NO_HOST_SUSPEND
-	return 0;
-#else
-	struct device	*dev;
-
-	if (!isp->otg.host)
-		return -ENODEV;
-
-	dev = isp->otg.host->controller;
-	return dev->driver->resume(dev, 0);
-#endif
-}
-
-static int gadget_suspend(struct isp1301 *isp)
-{
-	isp->otg.gadget->b_hnp_enable = 0;
-	isp->otg.gadget->a_hnp_support = 0;
-	isp->otg.gadget->a_alt_hnp_support = 0;
-	return usb_gadget_vbus_disconnect(isp->otg.gadget);
-}
-
-/*-------------------------------------------------------------------------*/
-
-#define	TIMER_MINUTES	10
-#define	TIMER_JIFFIES	(TIMER_MINUTES * 60 * HZ)
-
-/* Almost all our I2C messaging comes from a work queue's task context.
- * NOTE: guaranteeing certain response times might mean we shouldn't
- * share keventd's work queue; a realtime task might be safest.
- */
-static void isp1301_defer_work(struct isp1301 *isp, int work)
-{
-	int status;
-
-	if (isp && !test_and_set_bit(work, &isp->todo)) {
-		(void) get_device(&isp->client->dev);
-		status = schedule_work(&isp->work);
-		if (!status && !isp->working)
-			dev_vdbg(&isp->client->dev,
-				"work item %d may be lost\n", work);
-	}
-}
-
-/* called from irq handlers */
-static void a_idle(struct isp1301 *isp, const char *tag)
-{
-	u32 l;
-
-	if (isp->otg.state == OTG_STATE_A_IDLE)
-		return;
-
-	isp->otg.default_a = 1;
-	if (isp->otg.host) {
-		isp->otg.host->is_b_host = 0;
-		host_suspend(isp);
-	}
-	if (isp->otg.gadget) {
-		isp->otg.gadget->is_a_peripheral = 1;
-		gadget_suspend(isp);
-	}
-	isp->otg.state = OTG_STATE_A_IDLE;
-	l = omap_readl(OTG_CTRL) & OTG_XCEIV_OUTPUTS;
-	omap_writel(l, OTG_CTRL);
-	isp->last_otg_ctrl = l;
-	pr_debug("  --> %s/%s\n", state_name(isp), tag);
-}
-
-/* called from irq handlers */
-static void b_idle(struct isp1301 *isp, const char *tag)
-{
-	u32 l;
-
-	if (isp->otg.state == OTG_STATE_B_IDLE)
-		return;
-
-	isp->otg.default_a = 0;
-	if (isp->otg.host) {
-		isp->otg.host->is_b_host = 1;
-		host_suspend(isp);
-	}
-	if (isp->otg.gadget) {
-		isp->otg.gadget->is_a_peripheral = 0;
-		gadget_suspend(isp);
-	}
-	isp->otg.state = OTG_STATE_B_IDLE;
-	l = omap_readl(OTG_CTRL) & OTG_XCEIV_OUTPUTS;
-	omap_writel(l, OTG_CTRL);
-	isp->last_otg_ctrl = l;
-	pr_debug("  --> %s/%s\n", state_name(isp), tag);
-}
-
-static void
-dump_regs(struct isp1301 *isp, const char *label)
-{
-#ifdef	DEBUG
-	u8	ctrl = isp1301_get_u8(isp, ISP1301_OTG_CONTROL_1);
-	u8	status = isp1301_get_u8(isp, ISP1301_OTG_STATUS);
-	u8	src = isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE);
-
-	pr_debug("otg: %06x, %s %s, otg/%02x stat/%02x.%02x\n",
-		omap_readl(OTG_CTRL), label, state_name(isp),
-		ctrl, status, src);
-	/* mode control and irq enables don't change much */
-#endif
-}
-
-/*-------------------------------------------------------------------------*/
-
-#ifdef	CONFIG_USB_OTG
-
-/*
- * The OMAP OTG controller handles most of the OTG state transitions.
- *
- * We translate isp1301 outputs (mostly voltage comparator status) into
- * OTG inputs; OTG outputs (mostly pullup/pulldown controls) and HNP state
- * flags into isp1301 inputs ... and infer state transitions.
- */
-
-#ifdef	VERBOSE
-
-static void check_state(struct isp1301 *isp, const char *tag)
-{
-	enum usb_otg_state	state = OTG_STATE_UNDEFINED;
-	u8			fsm = omap_readw(OTG_TEST) & 0x0ff;
-	unsigned		extra = 0;
-
-	switch (fsm) {
-
-	/* default-b */
-	case 0x0:
-		state = OTG_STATE_B_IDLE;
-		break;
-	case 0x3:
-	case 0x7:
-		extra = 1;
-	case 0x1:
-		state = OTG_STATE_B_PERIPHERAL;
-		break;
-	case 0x11:
-		state = OTG_STATE_B_SRP_INIT;
-		break;
-
-	/* extra dual-role default-b states */
-	case 0x12:
-	case 0x13:
-	case 0x16:
-		extra = 1;
-	case 0x17:
-		state = OTG_STATE_B_WAIT_ACON;
-		break;
-	case 0x34:
-		state = OTG_STATE_B_HOST;
-		break;
-
-	/* default-a */
-	case 0x36:
-		state = OTG_STATE_A_IDLE;
-		break;
-	case 0x3c:
-		state = OTG_STATE_A_WAIT_VFALL;
-		break;
-	case 0x7d:
-		state = OTG_STATE_A_VBUS_ERR;
-		break;
-	case 0x9e:
-	case 0x9f:
-		extra = 1;
-	case 0x89:
-		state = OTG_STATE_A_PERIPHERAL;
-		break;
-	case 0xb7:
-		state = OTG_STATE_A_WAIT_VRISE;
-		break;
-	case 0xb8:
-		state = OTG_STATE_A_WAIT_BCON;
-		break;
-	case 0xb9:
-		state = OTG_STATE_A_HOST;
-		break;
-	case 0xba:
-		state = OTG_STATE_A_SUSPEND;
-		break;
-	default:
-		break;
-	}
-	if (isp->otg.state == state && !extra)
-		return;
-	pr_debug("otg: %s FSM %s/%02x, %s, %06x\n", tag,
-		state_string(state), fsm, state_name(isp),
-		omap_readl(OTG_CTRL));
-}
-
-#else
-
-static inline void check_state(struct isp1301 *isp, const char *tag) { }
-
-#endif
-
-/* outputs from ISP1301_INTERRUPT_SOURCE */
-static void update_otg1(struct isp1301 *isp, u8 int_src)
-{
-	u32	otg_ctrl;
-
-	otg_ctrl = omap_readl(OTG_CTRL) & OTG_CTRL_MASK;
-	otg_ctrl &= ~OTG_XCEIV_INPUTS;
-	otg_ctrl &= ~(OTG_ID|OTG_ASESSVLD|OTG_VBUSVLD);
-
-	if (int_src & INTR_SESS_VLD)
-		otg_ctrl |= OTG_ASESSVLD;
-	else if (isp->otg.state == OTG_STATE_A_WAIT_VFALL) {
-		a_idle(isp, "vfall");
-		otg_ctrl &= ~OTG_CTRL_BITS;
-	}
-	if (int_src & INTR_VBUS_VLD)
-		otg_ctrl |= OTG_VBUSVLD;
-	if (int_src & INTR_ID_GND) {		/* default-A */
-		if (isp->otg.state == OTG_STATE_B_IDLE
-				|| isp->otg.state == OTG_STATE_UNDEFINED) {
-			a_idle(isp, "init");
-			return;
-		}
-	} else {				/* default-B */
-		otg_ctrl |= OTG_ID;
-		if (isp->otg.state == OTG_STATE_A_IDLE
-				|| isp->otg.state == OTG_STATE_UNDEFINED) {
-			b_idle(isp, "init");
-			return;
-		}
-	}
-	omap_writel(otg_ctrl, OTG_CTRL);
-}
-
-/* outputs from ISP1301_OTG_STATUS */
-static void update_otg2(struct isp1301 *isp, u8 otg_status)
-{
-	u32	otg_ctrl;
-
-	otg_ctrl = omap_readl(OTG_CTRL) & OTG_CTRL_MASK;
-	otg_ctrl &= ~OTG_XCEIV_INPUTS;
-	otg_ctrl &= ~(OTG_BSESSVLD | OTG_BSESSEND);
-	if (otg_status & OTG_B_SESS_VLD)
-		otg_ctrl |= OTG_BSESSVLD;
-	else if (otg_status & OTG_B_SESS_END)
-		otg_ctrl |= OTG_BSESSEND;
-	omap_writel(otg_ctrl, OTG_CTRL);
-}
-
-/* inputs going to ISP1301 */
-static void otg_update_isp(struct isp1301 *isp)
-{
-	u32	otg_ctrl, otg_change;
-	u8	set = OTG1_DM_PULLDOWN, clr = OTG1_DM_PULLUP;
-
-	otg_ctrl = omap_readl(OTG_CTRL);
-	otg_change = otg_ctrl ^ isp->last_otg_ctrl;
-	isp->last_otg_ctrl = otg_ctrl;
-	otg_ctrl = otg_ctrl & OTG_XCEIV_INPUTS;
-
-	switch (isp->otg.state) {
-	case OTG_STATE_B_IDLE:
-	case OTG_STATE_B_PERIPHERAL:
-	case OTG_STATE_B_SRP_INIT:
-		if (!(otg_ctrl & OTG_PULLUP)) {
-			// if (otg_ctrl & OTG_B_HNPEN) {
-			if (isp->otg.gadget->b_hnp_enable) {
-				isp->otg.state = OTG_STATE_B_WAIT_ACON;
-				pr_debug("  --> b_wait_acon\n");
-			}
-			goto pulldown;
-		}
-pullup:
-		set |= OTG1_DP_PULLUP;
-		clr |= OTG1_DP_PULLDOWN;
-		break;
-	case OTG_STATE_A_SUSPEND:
-	case OTG_STATE_A_PERIPHERAL:
-		if (otg_ctrl & OTG_PULLUP)
-			goto pullup;
-		/* FALLTHROUGH */
-	// case OTG_STATE_B_WAIT_ACON:
-	default:
-pulldown:
-		set |= OTG1_DP_PULLDOWN;
-		clr |= OTG1_DP_PULLUP;
-		break;
-	}
-
-#	define toggle(OTG,ISP) do { \
-		if (otg_ctrl & OTG) set |= ISP; \
-		else clr |= ISP; \
-		} while (0)
-
-	if (!(isp->otg.host))
-		otg_ctrl &= ~OTG_DRV_VBUS;
-
-	switch (isp->otg.state) {
-	case OTG_STATE_A_SUSPEND:
-		if (otg_ctrl & OTG_DRV_VBUS) {
-			set |= OTG1_VBUS_DRV;
-			break;
-		}
-		/* HNP failed for some reason (A_AIDL_BDIS timeout) */
-		notresponding(isp);
-
-		/* FALLTHROUGH */
-	case OTG_STATE_A_VBUS_ERR:
-		isp->otg.state = OTG_STATE_A_WAIT_VFALL;
-		pr_debug("  --> a_wait_vfall\n");
-		/* FALLTHROUGH */
-	case OTG_STATE_A_WAIT_VFALL:
-		/* FIXME usbcore thinks port power is still on ... */
-		clr |= OTG1_VBUS_DRV;
-		break;
-	case OTG_STATE_A_IDLE:
-		if (otg_ctrl & OTG_DRV_VBUS) {
-			isp->otg.state = OTG_STATE_A_WAIT_VRISE;
-			pr_debug("  --> a_wait_vrise\n");
-		}
-		/* FALLTHROUGH */
-	default:
-		toggle(OTG_DRV_VBUS, OTG1_VBUS_DRV);
-	}
-
-	toggle(OTG_PU_VBUS, OTG1_VBUS_CHRG);
-	toggle(OTG_PD_VBUS, OTG1_VBUS_DISCHRG);
-
-#	undef toggle
-
-	isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, set);
-	isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1, clr);
-
-	/* HNP switch to host or peripheral; and SRP */
-	if (otg_change & OTG_PULLUP) {
-		u32 l;
-
-		switch (isp->otg.state) {
-		case OTG_STATE_B_IDLE:
-			if (clr & OTG1_DP_PULLUP)
-				break;
-			isp->otg.state = OTG_STATE_B_PERIPHERAL;
-			pr_debug("  --> b_peripheral\n");
-			break;
-		case OTG_STATE_A_SUSPEND:
-			if (clr & OTG1_DP_PULLUP)
-				break;
-			isp->otg.state = OTG_STATE_A_PERIPHERAL;
-			pr_debug("  --> a_peripheral\n");
-			break;
-		default:
-			break;
-		}
-		l = omap_readl(OTG_CTRL);
-		l |= OTG_PULLUP;
-		omap_writel(l, OTG_CTRL);
-	}
-
-	check_state(isp, __func__);
-	dump_regs(isp, "otg->isp1301");
-}
-
-static irqreturn_t omap_otg_irq(int irq, void *_isp)
-{
-	u16		otg_irq = omap_readw(OTG_IRQ_SRC);
-	u32		otg_ctrl;
-	int		ret = IRQ_NONE;
-	struct isp1301	*isp = _isp;
-
-	/* update ISP1301 transciever from OTG controller */
-	if (otg_irq & OPRT_CHG) {
-		omap_writew(OPRT_CHG, OTG_IRQ_SRC);
-		isp1301_defer_work(isp, WORK_UPDATE_ISP);
-		ret = IRQ_HANDLED;
-
-	/* SRP to become b_peripheral failed */
-	} else if (otg_irq & B_SRP_TMROUT) {
-		pr_debug("otg: B_SRP_TIMEOUT, %06x\n", omap_readl(OTG_CTRL));
-		notresponding(isp);
-
-		/* gadget drivers that care should monitor all kinds of
-		 * remote wakeup (SRP, normal) using their own timer
-		 * to give "check cable and A-device" messages.
-		 */
-		if (isp->otg.state == OTG_STATE_B_SRP_INIT)
-			b_idle(isp, "srp_timeout");
-
-		omap_writew(B_SRP_TMROUT, OTG_IRQ_SRC);
-		ret = IRQ_HANDLED;
-
-	/* HNP to become b_host failed */
-	} else if (otg_irq & B_HNP_FAIL) {
-		pr_debug("otg: %s B_HNP_FAIL, %06x\n",
-				state_name(isp), omap_readl(OTG_CTRL));
-		notresponding(isp);
-
-		otg_ctrl = omap_readl(OTG_CTRL);
-		otg_ctrl |= OTG_BUSDROP;
-		otg_ctrl &= OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
-		omap_writel(otg_ctrl, OTG_CTRL);
-
-		/* subset of b_peripheral()... */
-		isp->otg.state = OTG_STATE_B_PERIPHERAL;
-		pr_debug("  --> b_peripheral\n");
-
-		omap_writew(B_HNP_FAIL, OTG_IRQ_SRC);
-		ret = IRQ_HANDLED;
-
-	/* detect SRP from B-device ... */
-	} else if (otg_irq & A_SRP_DETECT) {
-		pr_debug("otg: %s SRP_DETECT, %06x\n",
-				state_name(isp), omap_readl(OTG_CTRL));
-
-		isp1301_defer_work(isp, WORK_UPDATE_OTG);
-		switch (isp->otg.state) {
-		case OTG_STATE_A_IDLE:
-			if (!isp->otg.host)
-				break;
-			isp1301_defer_work(isp, WORK_HOST_RESUME);
-			otg_ctrl = omap_readl(OTG_CTRL);
-			otg_ctrl |= OTG_A_BUSREQ;
-			otg_ctrl &= ~(OTG_BUSDROP|OTG_B_BUSREQ)
-					& ~OTG_XCEIV_INPUTS
-					& OTG_CTRL_MASK;
-			omap_writel(otg_ctrl, OTG_CTRL);
-			break;
-		default:
-			break;
-		}
-
-		omap_writew(A_SRP_DETECT, OTG_IRQ_SRC);
-		ret = IRQ_HANDLED;
-
-	/* timer expired:  T(a_wait_bcon) and maybe T(a_wait_vrise)
-	 * we don't track them separately
-	 */
-	} else if (otg_irq & A_REQ_TMROUT) {
-		otg_ctrl = omap_readl(OTG_CTRL);
-		pr_info("otg: BCON_TMOUT from %s, %06x\n",
-				state_name(isp), otg_ctrl);
-		notresponding(isp);
-
-		otg_ctrl |= OTG_BUSDROP;
-		otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
-		omap_writel(otg_ctrl, OTG_CTRL);
-		isp->otg.state = OTG_STATE_A_WAIT_VFALL;
-
-		omap_writew(A_REQ_TMROUT, OTG_IRQ_SRC);
-		ret = IRQ_HANDLED;
-
-	/* A-supplied voltage fell too low; overcurrent */
-	} else if (otg_irq & A_VBUS_ERR) {
-		otg_ctrl = omap_readl(OTG_CTRL);
-		printk(KERN_ERR "otg: %s, VBUS_ERR %04x ctrl %06x\n",
-			state_name(isp), otg_irq, otg_ctrl);
-
-		otg_ctrl |= OTG_BUSDROP;
-		otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
-		omap_writel(otg_ctrl, OTG_CTRL);
-		isp->otg.state = OTG_STATE_A_VBUS_ERR;
-
-		omap_writew(A_VBUS_ERR, OTG_IRQ_SRC);
-		ret = IRQ_HANDLED;
-
-	/* switch driver; the transciever code activates it,
-	 * ungating the udc clock or resuming OHCI.
-	 */
-	} else if (otg_irq & DRIVER_SWITCH) {
-		int	kick = 0;
-
-		otg_ctrl = omap_readl(OTG_CTRL);
-		printk(KERN_NOTICE "otg: %s, SWITCH to %s, ctrl %06x\n",
-				state_name(isp),
-				(otg_ctrl & OTG_DRIVER_SEL)
-					? "gadget" : "host",
-				otg_ctrl);
-		isp1301_defer_work(isp, WORK_UPDATE_ISP);
-
-		/* role is peripheral */
-		if (otg_ctrl & OTG_DRIVER_SEL) {
-			switch (isp->otg.state) {
-			case OTG_STATE_A_IDLE:
-				b_idle(isp, __func__);
-				break;
-			default:
-				break;
-			}
-			isp1301_defer_work(isp, WORK_UPDATE_ISP);
-
-		/* role is host */
-		} else {
-			if (!(otg_ctrl & OTG_ID)) {
-				otg_ctrl &= OTG_CTRL_MASK & ~OTG_XCEIV_INPUTS;
-				omap_writel(otg_ctrl | OTG_A_BUSREQ, OTG_CTRL);
-			}
-
-			if (isp->otg.host) {
-				switch (isp->otg.state) {
-				case OTG_STATE_B_WAIT_ACON:
-					isp->otg.state = OTG_STATE_B_HOST;
-					pr_debug("  --> b_host\n");
-					kick = 1;
-					break;
-				case OTG_STATE_A_WAIT_BCON:
-					isp->otg.state = OTG_STATE_A_HOST;
-					pr_debug("  --> a_host\n");
-					break;
-				case OTG_STATE_A_PERIPHERAL:
-					isp->otg.state = OTG_STATE_A_WAIT_BCON;
-					pr_debug("  --> a_wait_bcon\n");
-					break;
-				default:
-					break;
-				}
-				isp1301_defer_work(isp, WORK_HOST_RESUME);
-			}
-		}
-
-		omap_writew(DRIVER_SWITCH, OTG_IRQ_SRC);
-		ret = IRQ_HANDLED;
-
-		if (kick)
-			usb_bus_start_enum(isp->otg.host,
-						isp->otg.host->otg_port);
-	}
-
-	check_state(isp, __func__);
-	return ret;
-}
-
-static struct platform_device *otg_dev;
-
-static int otg_init(struct isp1301 *isp)
-{
-	u32 l;
-
-	if (!otg_dev)
-		return -ENODEV;
-
-	dump_regs(isp, __func__);
-	/* some of these values are board-specific... */
-	l = omap_readl(OTG_SYSCON_2);
-	l |= OTG_EN
-		/* for B-device: */
-		| SRP_GPDATA		/* 9msec Bdev D+ pulse */
-		| SRP_GPDVBUS		/* discharge after VBUS pulse */
-		// | (3 << 24)		/* 2msec VBUS pulse */
-		/* for A-device: */
-		| (0 << 20)		/* 200ms nominal A_WAIT_VRISE timer */
-		| SRP_DPW		/* detect 167+ns SRP pulses */
-		| SRP_DATA | SRP_VBUS	/* accept both kinds of SRP pulse */
-		;
-	omap_writel(l, OTG_SYSCON_2);
-
-	update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
-	update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
-
-	check_state(isp, __func__);
-	pr_debug("otg: %s, %s %06x\n",
-			state_name(isp), __func__, omap_readl(OTG_CTRL));
-
-	omap_writew(DRIVER_SWITCH | OPRT_CHG
-			| B_SRP_TMROUT | B_HNP_FAIL
-			| A_VBUS_ERR | A_SRP_DETECT | A_REQ_TMROUT, OTG_IRQ_EN);
-
-	l = omap_readl(OTG_SYSCON_2);
-	l |= OTG_EN;
-	omap_writel(l, OTG_SYSCON_2);
-
-	return 0;
-}
-
-static int otg_probe(struct platform_device *dev)
-{
-	// struct omap_usb_config *config = dev->platform_data;
-
-	otg_dev = dev;
-	return 0;
-}
-
-static int otg_remove(struct platform_device *dev)
-{
-	otg_dev = NULL;
-	return 0;
-}
-
-static struct platform_driver omap_otg_driver = {
-	.probe		= otg_probe,
-	.remove		= otg_remove,
-	.driver		= {
-		.owner	= THIS_MODULE,
-		.name	= "omap_otg",
-	},
-};
-
-static int otg_bind(struct isp1301 *isp)
-{
-	int	status;
-
-	if (otg_dev)
-		return -EBUSY;
-
-	status = platform_driver_register(&omap_otg_driver);
-	if (status < 0)
-		return status;
-
-	if (otg_dev)
-		status = request_irq(otg_dev->resource[1].start, omap_otg_irq,
-				IRQF_DISABLED, DRIVER_NAME, isp);
-	else
-		status = -ENODEV;
-
-	if (status < 0)
-		platform_driver_unregister(&omap_otg_driver);
-	return status;
-}
-
-static void otg_unbind(struct isp1301 *isp)
-{
-	if (!otg_dev)
-		return;
-	free_irq(otg_dev->resource[1].start, isp);
-}
-
-#else
-
-/* OTG controller isn't clocked */
-
-#endif	/* CONFIG_USB_OTG */
-
-/*-------------------------------------------------------------------------*/
-
-static void b_peripheral(struct isp1301 *isp)
-{
-	u32 l;
-
-	l = omap_readl(OTG_CTRL) & OTG_XCEIV_OUTPUTS;
-	omap_writel(l, OTG_CTRL);
-
-	usb_gadget_vbus_connect(isp->otg.gadget);
-
-#ifdef	CONFIG_USB_OTG
-	enable_vbus_draw(isp, 8);
-	otg_update_isp(isp);
-#else
-	enable_vbus_draw(isp, 100);
-	/* UDC driver just set OTG_BSESSVLD */
-	isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_DP_PULLUP);
-	isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_DP_PULLDOWN);
-	isp->otg.state = OTG_STATE_B_PERIPHERAL;
-	pr_debug("  --> b_peripheral\n");
-	dump_regs(isp, "2periph");
-#endif
-}
-
-static void isp_update_otg(struct isp1301 *isp, u8 stat)
-{
-	u8			isp_stat, isp_bstat;
-	enum usb_otg_state	state = isp->otg.state;
-
-	if (stat & INTR_BDIS_ACON)
-		pr_debug("OTG:  BDIS_ACON, %s\n", state_name(isp));
-
-	/* start certain state transitions right away */
-	isp_stat = isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE);
-	if (isp_stat & INTR_ID_GND) {
-		if (isp->otg.default_a) {
-			switch (state) {
-			case OTG_STATE_B_IDLE:
-				a_idle(isp, "idle");
-				/* FALLTHROUGH */
-			case OTG_STATE_A_IDLE:
-				enable_vbus_source(isp);
-				/* FALLTHROUGH */
-			case OTG_STATE_A_WAIT_VRISE:
-				/* we skip over OTG_STATE_A_WAIT_BCON, since
-				 * the HC will transition to A_HOST (or
-				 * A_SUSPEND!) without our noticing except
-				 * when HNP is used.
-				 */
-				if (isp_stat & INTR_VBUS_VLD)
-					isp->otg.state = OTG_STATE_A_HOST;
-				break;
-			case OTG_STATE_A_WAIT_VFALL:
-				if (!(isp_stat & INTR_SESS_VLD))
-					a_idle(isp, "vfell");
-				break;
-			default:
-				if (!(isp_stat & INTR_VBUS_VLD))
-					isp->otg.state = OTG_STATE_A_VBUS_ERR;
-				break;
-			}
-			isp_bstat = isp1301_get_u8(isp, ISP1301_OTG_STATUS);
-		} else {
-			switch (state) {
-			case OTG_STATE_B_PERIPHERAL:
-			case OTG_STATE_B_HOST:
-			case OTG_STATE_B_WAIT_ACON:
-				usb_gadget_vbus_disconnect(isp->otg.gadget);
-				break;
-			default:
-				break;
-			}
-			if (state != OTG_STATE_A_IDLE)
-				a_idle(isp, "id");
-			if (isp->otg.host && state == OTG_STATE_A_IDLE)
-				isp1301_defer_work(isp, WORK_HOST_RESUME);
-			isp_bstat = 0;
-		}
-	} else {
-		u32 l;
-
-		/* if user unplugged mini-A end of cable,
-		 * don't bypass A_WAIT_VFALL.
-		 */
-		if (isp->otg.default_a) {
-			switch (state) {
-			default:
-				isp->otg.state = OTG_STATE_A_WAIT_VFALL;
-				break;
-			case OTG_STATE_A_WAIT_VFALL:
-				state = OTG_STATE_A_IDLE;
-				/* khubd may take a while to notice and
-				 * handle this disconnect, so don't go
-				 * to B_IDLE quite yet.
-				 */
-				break;
-			case OTG_STATE_A_IDLE:
-				host_suspend(isp);
-				isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1,
-						MC1_BDIS_ACON_EN);
-				isp->otg.state = OTG_STATE_B_IDLE;
-				l = omap_readl(OTG_CTRL) & OTG_CTRL_MASK;
-				l &= ~OTG_CTRL_BITS;
-				omap_writel(l, OTG_CTRL);
-				break;
-			case OTG_STATE_B_IDLE:
-				break;
-			}
-		}
-		isp_bstat = isp1301_get_u8(isp, ISP1301_OTG_STATUS);
-
-		switch (isp->otg.state) {
-		case OTG_STATE_B_PERIPHERAL:
-		case OTG_STATE_B_WAIT_ACON:
-		case OTG_STATE_B_HOST:
-			if (likely(isp_bstat & OTG_B_SESS_VLD))
-				break;
-			enable_vbus_draw(isp, 0);
-#ifndef	CONFIG_USB_OTG
-			/* UDC driver will clear OTG_BSESSVLD */
-			isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1,
-						OTG1_DP_PULLDOWN);
-			isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1,
-						OTG1_DP_PULLUP);
-			dump_regs(isp, __func__);
-#endif
-			/* FALLTHROUGH */
-		case OTG_STATE_B_SRP_INIT:
-			b_idle(isp, __func__);
-			l = omap_readl(OTG_CTRL) & OTG_XCEIV_OUTPUTS;
-			omap_writel(l, OTG_CTRL);
-			/* FALLTHROUGH */
-		case OTG_STATE_B_IDLE:
-			if (isp->otg.gadget && (isp_bstat & OTG_B_SESS_VLD)) {
-#ifdef	CONFIG_USB_OTG
-				update_otg1(isp, isp_stat);
-				update_otg2(isp, isp_bstat);
-#endif
-				b_peripheral(isp);
-			} else if (!(isp_stat & (INTR_VBUS_VLD|INTR_SESS_VLD)))
-				isp_bstat |= OTG_B_SESS_END;
-			break;
-		case OTG_STATE_A_WAIT_VFALL:
-			break;
-		default:
-			pr_debug("otg: unsupported b-device %s\n",
-				state_name(isp));
-			break;
-		}
-	}
-
-	if (state != isp->otg.state)
-		pr_debug("  isp, %s -> %s\n",
-				state_string(state), state_name(isp));
-
-#ifdef	CONFIG_USB_OTG
-	/* update the OTG controller state to match the isp1301; may
-	 * trigger OPRT_CHG irqs for changes going to the isp1301.
-	 */
-	update_otg1(isp, isp_stat);
-	update_otg2(isp, isp_bstat);
-	check_state(isp, __func__);
-#endif
-
-	dump_regs(isp, "isp1301->otg");
-}
-
-/*-------------------------------------------------------------------------*/
-
-static u8 isp1301_clear_latch(struct isp1301 *isp)
-{
-	u8 latch = isp1301_get_u8(isp, ISP1301_INTERRUPT_LATCH);
-	isp1301_clear_bits(isp, ISP1301_INTERRUPT_LATCH, latch);
-	return latch;
-}
-
-static void
-isp1301_work(struct work_struct *work)
-{
-	struct isp1301	*isp = container_of(work, struct isp1301, work);
-	int		stop;
-
-	/* implicit lock:  we're the only task using this device */
-	isp->working = 1;
-	do {
-		stop = test_bit(WORK_STOP, &isp->todo);
-
-#ifdef	CONFIG_USB_OTG
-		/* transfer state from otg engine to isp1301 */
-		if (test_and_clear_bit(WORK_UPDATE_ISP, &isp->todo)) {
-			otg_update_isp(isp);
-			put_device(&isp->client->dev);
-		}
-#endif
-		/* transfer state from isp1301 to otg engine */
-		if (test_and_clear_bit(WORK_UPDATE_OTG, &isp->todo)) {
-			u8		stat = isp1301_clear_latch(isp);
-
-			isp_update_otg(isp, stat);
-			put_device(&isp->client->dev);
-		}
-
-		if (test_and_clear_bit(WORK_HOST_RESUME, &isp->todo)) {
-			u32	otg_ctrl;
-
-			/*
-			 * skip A_WAIT_VRISE; hc transitions invisibly
-			 * skip A_WAIT_BCON; same.
-			 */
-			switch (isp->otg.state) {
-			case OTG_STATE_A_WAIT_BCON:
-			case OTG_STATE_A_WAIT_VRISE:
-				isp->otg.state = OTG_STATE_A_HOST;
-				pr_debug("  --> a_host\n");
-				otg_ctrl = omap_readl(OTG_CTRL);
-				otg_ctrl |= OTG_A_BUSREQ;
-				otg_ctrl &= ~(OTG_BUSDROP|OTG_B_BUSREQ)
-						& OTG_CTRL_MASK;
-				omap_writel(otg_ctrl, OTG_CTRL);
-				break;
-			case OTG_STATE_B_WAIT_ACON:
-				isp->otg.state = OTG_STATE_B_HOST;
-				pr_debug("  --> b_host (acon)\n");
-				break;
-			case OTG_STATE_B_HOST:
-			case OTG_STATE_B_IDLE:
-			case OTG_STATE_A_IDLE:
-				break;
-			default:
-				pr_debug("  host resume in %s\n",
-						state_name(isp));
-			}
-			host_resume(isp);
-			// mdelay(10);
-			put_device(&isp->client->dev);
-		}
-
-		if (test_and_clear_bit(WORK_TIMER, &isp->todo)) {
-#ifdef	VERBOSE
-			dump_regs(isp, "timer");
-			if (!stop)
-				mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
-#endif
-			put_device(&isp->client->dev);
-		}
-
-		if (isp->todo)
-			dev_vdbg(&isp->client->dev,
-				"work done, todo = 0x%lx\n",
-				isp->todo);
-		if (stop) {
-			dev_dbg(&isp->client->dev, "stop\n");
-			break;
-		}
-	} while (isp->todo);
-	isp->working = 0;
-}
-
-static irqreturn_t isp1301_irq(int irq, void *isp)
-{
-	isp1301_defer_work(isp, WORK_UPDATE_OTG);
-	return IRQ_HANDLED;
-}
-
-static void isp1301_timer(unsigned long _isp)
-{
-	isp1301_defer_work((void *)_isp, WORK_TIMER);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static void isp1301_release(struct device *dev)
-{
-	struct isp1301	*isp;
-
-	isp = dev_get_drvdata(dev);
-
-	/* FIXME -- not with a "new style" driver, it doesn't!! */
-
-	/* ugly -- i2c hijacks our memory hook to wait_for_completion() */
-	if (isp->i2c_release)
-		isp->i2c_release(dev);
-	kfree (isp);
-}
-
-static struct isp1301 *the_transceiver;
-
-static int __exit isp1301_remove(struct i2c_client *i2c)
-{
-	struct isp1301	*isp;
-
-	isp = i2c_get_clientdata(i2c);
-
-	isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
-	isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
-	free_irq(i2c->irq, isp);
-#ifdef	CONFIG_USB_OTG
-	otg_unbind(isp);
-#endif
-	if (machine_is_omap_h2())
-		gpio_free(2);
-
-	isp->timer.data = 0;
-	set_bit(WORK_STOP, &isp->todo);
-	del_timer_sync(&isp->timer);
-	flush_scheduled_work();
-
-	put_device(&i2c->dev);
-	the_transceiver = NULL;
-
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* NOTE:  three modes are possible here, only one of which
- * will be standards-conformant on any given system:
- *
- *  - OTG mode (dual-role), required if there's a Mini-AB connector
- *  - HOST mode, for when there's one or more A (host) connectors
- *  - DEVICE mode, for when there's a B/Mini-B (device) connector
- *
- * As a rule, you won't have an isp1301 chip unless it's there to
- * support the OTG mode.  Other modes help testing USB controllers
- * in isolation from (full) OTG support, or maybe so later board
- * revisions can help to support those feature.
- */
-
-#ifdef	CONFIG_USB_OTG
-
-static int isp1301_otg_enable(struct isp1301 *isp)
-{
-	power_up(isp);
-	otg_init(isp);
-
-	/* NOTE:  since we don't change this, this provides
-	 * a few more interrupts than are strictly needed.
-	 */
-	isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
-		INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND);
-	isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
-		INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND);
-
-	dev_info(&isp->client->dev, "ready for dual-role USB ...\n");
-
-	return 0;
-}
-
-#endif
-
-/* add or disable the host device+driver */
-static int
-isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
-{
-	struct isp1301	*isp = container_of(otg, struct isp1301, otg);
-
-	if (!otg || isp != the_transceiver)
-		return -ENODEV;
-
-	if (!host) {
-		omap_writew(0, OTG_IRQ_EN);
-		power_down(isp);
-		isp->otg.host = NULL;
-		return 0;
-	}
-
-#ifdef	CONFIG_USB_OTG
-	isp->otg.host = host;
-	dev_dbg(&isp->client->dev, "registered host\n");
-	host_suspend(isp);
-	if (isp->otg.gadget)
-		return isp1301_otg_enable(isp);
-	return 0;
-
-#elif	!defined(CONFIG_USB_GADGET_OMAP)
-	// FIXME update its refcount
-	isp->otg.host = host;
-
-	power_up(isp);
-
-	if (machine_is_omap_h2())
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
-
-	dev_info(&isp->client->dev, "A-Host sessions ok\n");
-	isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
-		INTR_ID_GND);
-	isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
-		INTR_ID_GND);
-
-	/* If this has a Mini-AB connector, this mode is highly
-	 * nonstandard ... but can be handy for testing, especially with
-	 * the Mini-A end of an OTG cable.  (Or something nonstandard
-	 * like MiniB-to-StandardB, maybe built with a gender mender.)
-	 */
-	isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1, OTG1_VBUS_DRV);
-
-	dump_regs(isp, __func__);
-
-	return 0;
-
-#else
-	dev_dbg(&isp->client->dev, "host sessions not allowed\n");
-	return -EINVAL;
-#endif
-
-}
-
-static int
-isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
-{
-	struct isp1301	*isp = container_of(otg, struct isp1301, otg);
-#ifndef	CONFIG_USB_OTG
-	u32 l;
-#endif
-
-	if (!otg || isp != the_transceiver)
-		return -ENODEV;
-
-	if (!gadget) {
-		omap_writew(0, OTG_IRQ_EN);
-		if (!isp->otg.default_a)
-			enable_vbus_draw(isp, 0);
-		usb_gadget_vbus_disconnect(isp->otg.gadget);
-		isp->otg.gadget = NULL;
-		power_down(isp);
-		return 0;
-	}
-
-#ifdef	CONFIG_USB_OTG
-	isp->otg.gadget = gadget;
-	dev_dbg(&isp->client->dev, "registered gadget\n");
-	/* gadget driver may be suspended until vbus_connect () */
-	if (isp->otg.host)
-		return isp1301_otg_enable(isp);
-	return 0;
-
-#elif	!defined(CONFIG_USB_OHCI_HCD) && !defined(CONFIG_USB_OHCI_HCD_MODULE)
-	isp->otg.gadget = gadget;
-	// FIXME update its refcount
-
-	l = omap_readl(OTG_CTRL) & OTG_CTRL_MASK;
-	l &= ~(OTG_XCEIV_OUTPUTS|OTG_CTRL_BITS);
-	l |= OTG_ID;
-	omap_writel(l, OTG_CTRL);
-
-	power_up(isp);
-	isp->otg.state = OTG_STATE_B_IDLE;
-
-	if (machine_is_omap_h2() || machine_is_omap_h3())
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
-
-	isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
-		INTR_SESS_VLD);
-	isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
-		INTR_VBUS_VLD);
-	dev_info(&isp->client->dev, "B-Peripheral sessions ok\n");
-	dump_regs(isp, __func__);
-
-	/* If this has a Mini-AB connector, this mode is highly
-	 * nonstandard ... but can be handy for testing, so long
-	 * as you don't plug a Mini-A cable into the jack.
-	 */
-	if (isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE) & INTR_VBUS_VLD)
-		b_peripheral(isp);
-
-	return 0;
-
-#else
-	dev_dbg(&isp->client->dev, "peripheral sessions not allowed\n");
-	return -EINVAL;
-#endif
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-static int
-isp1301_set_power(struct otg_transceiver *dev, unsigned mA)
-{
-	if (!the_transceiver)
-		return -ENODEV;
-	if (dev->state == OTG_STATE_B_PERIPHERAL)
-		enable_vbus_draw(the_transceiver, mA);
-	return 0;
-}
-
-static int
-isp1301_start_srp(struct otg_transceiver *dev)
-{
-	struct isp1301	*isp = container_of(dev, struct isp1301, otg);
-	u32		otg_ctrl;
-
-	if (!dev || isp != the_transceiver
-			|| isp->otg.state != OTG_STATE_B_IDLE)
-		return -ENODEV;
-
-	otg_ctrl = omap_readl(OTG_CTRL);
-	if (!(otg_ctrl & OTG_BSESSEND))
-		return -EINVAL;
-
-	otg_ctrl |= OTG_B_BUSREQ;
-	otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_MASK;
-	omap_writel(otg_ctrl, OTG_CTRL);
-	isp->otg.state = OTG_STATE_B_SRP_INIT;
-
-	pr_debug("otg: SRP, %s ... %06x\n", state_name(isp),
-			omap_readl(OTG_CTRL));
-#ifdef	CONFIG_USB_OTG
-	check_state(isp, __func__);
-#endif
-	return 0;
-}
-
-static int
-isp1301_start_hnp(struct otg_transceiver *dev)
-{
-#ifdef	CONFIG_USB_OTG
-	struct isp1301	*isp = container_of(dev, struct isp1301, otg);
-	u32 l;
-
-	if (!dev || isp != the_transceiver)
-		return -ENODEV;
-	if (isp->otg.default_a && (isp->otg.host == NULL
-			|| !isp->otg.host->b_hnp_enable))
-		return -ENOTCONN;
-	if (!isp->otg.default_a && (isp->otg.gadget == NULL
-			|| !isp->otg.gadget->b_hnp_enable))
-		return -ENOTCONN;
-
-	/* We want hardware to manage most HNP protocol timings.
-	 * So do this part as early as possible...
-	 */
-	switch (isp->otg.state) {
-	case OTG_STATE_B_HOST:
-		isp->otg.state = OTG_STATE_B_PERIPHERAL;
-		/* caller will suspend next */
-		break;
-	case OTG_STATE_A_HOST:
-#if 0
-		/* autoconnect mode avoids irq latency bugs */
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1,
-				MC1_BDIS_ACON_EN);
-#endif
-		/* caller must suspend then clear A_BUSREQ */
-		usb_gadget_vbus_connect(isp->otg.gadget);
-		l = omap_readl(OTG_CTRL);
-		l |= OTG_A_SETB_HNPEN;
-		omap_writel(l, OTG_CTRL);
-
-		break;
-	case OTG_STATE_A_PERIPHERAL:
-		/* initiated by B-Host suspend */
-		break;
-	default:
-		return -EILSEQ;
-	}
-	pr_debug("otg: HNP %s, %06x ...\n",
-		state_name(isp), omap_readl(OTG_CTRL));
-	check_state(isp, __func__);
-	return 0;
-#else
-	/* srp-only */
-	return -EINVAL;
-#endif
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int __init
-isp1301_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
-{
-	int			status;
-	struct isp1301		*isp;
-
-	if (the_transceiver)
-		return 0;
-
-	isp = kzalloc(sizeof *isp, GFP_KERNEL);
-	if (!isp)
-		return 0;
-
-	INIT_WORK(&isp->work, isp1301_work);
-	init_timer(&isp->timer);
-	isp->timer.function = isp1301_timer;
-	isp->timer.data = (unsigned long) isp;
-
-	i2c_set_clientdata(i2c, isp);
-	isp->client = i2c;
-
-	/* verify the chip (shouldn't be necesary) */
-	status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
-	if (status != I2C_VENDOR_ID_PHILIPS) {
-		dev_dbg(&i2c->dev, "not philips id: %d\n", status);
-		goto fail;
-	}
-	status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
-	if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
-		dev_dbg(&i2c->dev, "not isp1301, %d\n", status);
-		goto fail;
-	}
-	isp->i2c_release = i2c->dev.release;
-	i2c->dev.release = isp1301_release;
-
-	/* initial development used chiprev 2.00 */
-	status = i2c_smbus_read_word_data(i2c, ISP1301_BCD_DEVICE);
-	dev_info(&i2c->dev, "chiprev %x.%02x, driver " DRIVER_VERSION "\n",
-		status >> 8, status & 0xff);
-
-	/* make like power-on reset */
-	isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_1, MC1_MASK);
-
-	isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2, MC2_BI_DI);
-	isp1301_clear_bits(isp, ISP1301_MODE_CONTROL_2, ~MC2_BI_DI);
-
-	isp1301_set_bits(isp, ISP1301_OTG_CONTROL_1,
-				OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN);
-	isp1301_clear_bits(isp, ISP1301_OTG_CONTROL_1,
-				~(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN));
-
-	isp1301_clear_bits(isp, ISP1301_INTERRUPT_LATCH, ~0);
-	isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
-	isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
-
-#ifdef	CONFIG_USB_OTG
-	status = otg_bind(isp);
-	if (status < 0) {
-		dev_dbg(&i2c->dev, "can't bind OTG\n");
-		goto fail;
-	}
-#endif
-
-	if (machine_is_omap_h2()) {
-		/* full speed signaling by default */
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1,
-			MC1_SPEED);
-		isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2,
-			MC2_SPD_SUSP_CTRL);
-
-		/* IRQ wired at M14 */
-		omap_cfg_reg(M14_1510_GPIO2);
-		if (gpio_request(2, "isp1301") == 0)
-			gpio_direction_input(2);
-		isp->irq_type = IRQF_TRIGGER_FALLING;
-	}
-
-	isp->irq_type |= IRQF_SAMPLE_RANDOM;
-	status = request_irq(i2c->irq, isp1301_irq,
-			isp->irq_type, DRIVER_NAME, isp);
-	if (status < 0) {
-		dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n",
-				i2c->irq, status);
-		goto fail;
-	}
-
-	isp->otg.dev = &i2c->dev;
-	isp->otg.label = DRIVER_NAME;
-
-	isp->otg.set_host = isp1301_set_host,
-	isp->otg.set_peripheral = isp1301_set_peripheral,
-	isp->otg.set_power = isp1301_set_power,
-	isp->otg.start_srp = isp1301_start_srp,
-	isp->otg.start_hnp = isp1301_start_hnp,
-
-	enable_vbus_draw(isp, 0);
-	power_down(isp);
-	the_transceiver = isp;
-
-#ifdef	CONFIG_USB_OTG
-	update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
-	update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
-#endif
-
-	dump_regs(isp, __func__);
-
-#ifdef	VERBOSE
-	mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
-	dev_dbg(&i2c->dev, "scheduled timer, %d min\n", TIMER_MINUTES);
-#endif
-
-	status = otg_set_transceiver(&isp->otg);
-	if (status < 0)
-		dev_err(&i2c->dev, "can't register transceiver, %d\n",
-			status);
-
-	return 0;
-
-fail:
-	kfree(isp);
-	return -ENODEV;
-}
-
-static const struct i2c_device_id isp1301_id[] = {
-	{ "isp1301_omap", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, isp1301_id);
-
-static struct i2c_driver isp1301_driver = {
-	.driver = {
-		.name	= "isp1301_omap",
-	},
-	.probe		= isp1301_probe,
-	.remove		= __exit_p(isp1301_remove),
-	.id_table	= isp1301_id,
-};
-
-/*-------------------------------------------------------------------------*/
-
-static int __init isp_init(void)
-{
-	return i2c_add_driver(&isp1301_driver);
-}
-module_init(isp_init);
-
-static void __exit isp_exit(void)
-{
-	if (the_transceiver)
-		otg_set_transceiver(NULL);
-	i2c_del_driver(&isp1301_driver);
-}
-module_exit(isp_exit);
-