Merge branch 'org.openembedded.dev' of git://git.openembedded.org/openembedded into org.openembedded.dev

1 files changed, 1109 insertions, 0 deletions

diff --git a/recipes/kexecboot/linux-kexecboot-2.6.29/musb/0026-musb-proper-hookup-to-transceiver-drivers.patch b/recipes/kexecboot/linux-kexecboot-2.6.29/musb/0026-musb-proper-hookup-to-transceiver-drivers.patch
new file mode 100644
index 0000000000..035a6c7676
--- /dev/null
+++ b/recipes/kexecboot/linux-kexecboot-2.6.29/musb/0026-musb-proper-hookup-to-transceiver-drivers.patch
@@ -0,0 +1,1109 @@
+From 43ee46723ffa9dd43d611362064d235440aa04e7 Mon Sep 17 00:00:00 2001
+From: David Brownell <dbrownell-Rn4VEauK+AKRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
+Date: Tue, 31 Mar 2009 12:30:04 -0700
+Subject: [PATCH] musb: proper hookup to transceiver drivers
+
+Let the otg_transceiver in MUSB be managed by an external driver;
+don't assume it's integrated.  OMAP3 chips need it to be external,
+and there may be ways to interact with the transceiver which add
+functionality to the system.
+
+Platform init code is responsible for setting up the transeciver,
+probably using the NOP transceiver for integrated transceivers.
+External ones will use whatever the board init code provided,
+such as twl4030 or something more hands-off.
+
+Signed-off-by: David Brownell <dbrownell-Rn4VEauK+AKRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
+---
+ drivers/usb/musb/Kconfig        |    2 +
+ drivers/usb/musb/blackfin.c     |   11 +++-
+ drivers/usb/musb/davinci.c      |   33 +++++++++-----
+ drivers/usb/musb/musb_core.c    |   96 +++++++++++++++++++++------------------
+ drivers/usb/musb/musb_core.h    |    2 +-
+ drivers/usb/musb/musb_gadget.c  |   38 +++++++--------
+ drivers/usb/musb/musb_host.c    |    2 +-
+ drivers/usb/musb/musb_virthub.c |   20 ++++----
+ drivers/usb/musb/omap2430.c     |   62 +++++++++----------------
+ drivers/usb/musb/tusb6010.c     |   70 ++++++++++++++++++-----------
+ 10 files changed, 181 insertions(+), 155 deletions(-)
+
+diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
+index 9985db0..9eea991 100644
+--- a/drivers/usb/musb/Kconfig
++++ b/drivers/usb/musb/Kconfig
+@@ -10,6 +10,7 @@ comment "Enable Host or Gadget support to see Inventra options"
+ config USB_MUSB_HDRC
+ 	depends on (USB || USB_GADGET) && HAVE_CLK
+ 	depends on !SUPERH
++	select NOP_USB_XCEIV if ARCH_DAVINCI
+ 	select TWL4030_USB if MACH_OMAP_3430SDP
+ 	select USB_OTG_UTILS
+ 	tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
+@@ -55,6 +56,7 @@ comment "Blackfin high speed USB Support"
+ config USB_TUSB6010
+ 	boolean "TUSB 6010 support"
+ 	depends on USB_MUSB_HDRC && !USB_MUSB_SOC
++	select NOP_USB_XCEIV
+ 	default y
+ 	help
+ 	  The TUSB 6010 chip, from Texas Instruments, connects a discrete
+diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
+index 7861348..f2f66eb 100644
+--- a/drivers/usb/musb/blackfin.c
++++ b/drivers/usb/musb/blackfin.c
+@@ -143,7 +143,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
+ 	u16 val;
+ 
+ 	spin_lock_irqsave(&musb->lock, flags);
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_A_IDLE:
+ 	case OTG_STATE_A_WAIT_BCON:
+ 		/* Start a new session */
+@@ -154,7 +154,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
+ 		val = musb_readw(musb->mregs, MUSB_DEVCTL);
+ 		if (!(val & MUSB_DEVCTL_BDEVICE)) {
+ 			gpio_set_value(musb->config->gpio_vrsel, 1);
+-			musb->xceiv.state = OTG_STATE_A_WAIT_BCON;
++			musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ 		} else {
+ 			gpio_set_value(musb->config->gpio_vrsel, 0);
+ 
+@@ -247,6 +247,11 @@ int __init musb_platform_init(struct musb *musb)
+ 	}
+ 	gpio_direction_output(musb->config->gpio_vrsel, 0);
+ 
++	usb_nop_xceiv_register();
++	musb->xceiv = otg_get_transceiver();
++	if (!musb->xceiv)
++		return -ENODEV;
++
+ 	if (ANOMALY_05000346) {
+ 		bfin_write_USB_APHY_CALIB(ANOMALY_05000346_value);
+ 		SSYNC();
+@@ -291,7 +296,7 @@ int __init musb_platform_init(struct musb *musb)
+ 			musb_conn_timer_handler, (unsigned long) musb);
+ 	}
+ 	if (is_peripheral_enabled(musb))
+-		musb->xceiv.set_power = bfin_set_power;
++		musb->xceiv->set_power = bfin_set_power;
+ 
+ 	musb->isr = blackfin_interrupt;
+ 
+diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
+index 9fd74bf..81de742 100644
+--- a/drivers/usb/musb/davinci.c
++++ b/drivers/usb/musb/davinci.c
+@@ -200,7 +200,7 @@ static void otg_timer(unsigned long _musb)
+ 	DBG(7, "poll devctl %02x (%s)\n", devctl, otg_state_string(musb));
+ 
+ 	spin_lock_irqsave(&musb->lock, flags);
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_A_WAIT_VFALL:
+ 		/* Wait till VBUS falls below SessionEnd (~0.2V); the 1.3 RTL
+ 		 * seems to mis-handle session "start" otherwise (or in our
+@@ -211,7 +211,7 @@ static void otg_timer(unsigned long _musb)
+ 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+ 			break;
+ 		}
+-		musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
++		musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ 		musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
+ 			MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
+ 		break;
+@@ -236,7 +236,7 @@ static void otg_timer(unsigned long _musb)
+ 		if (devctl & MUSB_DEVCTL_BDEVICE)
+ 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+ 		else
+-			musb->xceiv.state = OTG_STATE_A_IDLE;
++			musb->xceiv->state = OTG_STATE_A_IDLE;
+ 		break;
+ 	default:
+ 		break;
+@@ -310,21 +310,21 @@ static irqreturn_t davinci_interrupt(int irq, void *__hci)
+ 			 * to stop registering in devctl.
+ 			 */
+ 			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
+-			musb->xceiv.state = OTG_STATE_A_WAIT_VFALL;
++			musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+ 			WARNING("VBUS error workaround (delay coming)\n");
+ 		} else if (is_host_enabled(musb) && drvvbus) {
+ 			musb->is_active = 1;
+ 			MUSB_HST_MODE(musb);
+-			musb->xceiv.default_a = 1;
+-			musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
++			musb->xceiv->default_a = 1;
++			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ 			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
+ 			del_timer(&otg_workaround);
+ 		} else {
+ 			musb->is_active = 0;
+ 			MUSB_DEV_MODE(musb);
+-			musb->xceiv.default_a = 0;
+-			musb->xceiv.state = OTG_STATE_B_IDLE;
++			musb->xceiv->default_a = 0;
++			musb->xceiv->state = OTG_STATE_B_IDLE;
+ 			portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
+ 		}
+ 
+@@ -346,7 +346,7 @@ static irqreturn_t davinci_interrupt(int irq, void *__hci)
+ 
+ 	/* poll for ID change */
+ 	if (is_otg_enabled(musb)
+-			&& musb->xceiv.state == OTG_STATE_B_IDLE)
++			&& musb->xceiv->state == OTG_STATE_B_IDLE)
+ 		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+ 
+ 	spin_unlock_irqrestore(&musb->lock, flags);
+@@ -365,6 +365,11 @@ int __init musb_platform_init(struct musb *musb)
+ 	void __iomem	*tibase = musb->ctrl_base;
+ 	u32		revision;
+ 
++	usb_nop_xceiv_register();
++	musb->xceiv = otg_get_transceiver();
++	if (!musb->xceiv)
++		return -ENODEV;
++
+ 	musb->mregs += DAVINCI_BASE_OFFSET;
+ 
+ 	clk_enable(musb->clock);
+@@ -372,7 +377,7 @@ int __init musb_platform_init(struct musb *musb)
+ 	/* returns zero if e.g. not clocked */
+ 	revision = musb_readl(tibase, DAVINCI_USB_VERSION_REG);
+ 	if (revision == 0)
+-		return -ENODEV;
++		goto fail;
+ 
+ 	if (is_host_enabled(musb))
+ 		setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+@@ -396,6 +401,10 @@ int __init musb_platform_init(struct musb *musb)
+ 
+ 	musb->isr = davinci_interrupt;
+ 	return 0;
++
++fail:
++	usb_nop_xceiv_unregister();
++	return -ENODEV;
+ }
+ 
+ int musb_platform_exit(struct musb *musb)
+@@ -406,7 +415,7 @@ int musb_platform_exit(struct musb *musb)
+ 	davinci_source_power(musb, 0 /*off*/, 1);
+ 
+ 	/* delay, to avoid problems with module reload */
+-	if (is_host_enabled(musb) && musb->xceiv.default_a) {
++	if (is_host_enabled(musb) && musb->xceiv->default_a) {
+ 		int	maxdelay = 30;
+ 		u8	devctl, warn = 0;
+ 
+@@ -435,5 +444,7 @@ int musb_platform_exit(struct musb *musb)
+ 
+ 	clk_disable(musb->clock);
+ 
++	usb_nop_xceiv_unregister();
++
+ 	return 0;
+ }
+diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
+index d953305..ac150af 100644
+--- a/drivers/usb/musb/musb_core.c
++++ b/drivers/usb/musb/musb_core.c
+@@ -267,7 +267,7 @@ void musb_load_testpacket(struct musb *musb)
+ 
+ const char *otg_state_string(struct musb *musb)
+ {
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->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";
+@@ -302,11 +302,11 @@ void musb_otg_timer_func(unsigned long data)
+ 	unsigned long	flags;
+ 
+ 	spin_lock_irqsave(&musb->lock, flags);
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_B_WAIT_ACON:
+ 		DBG(1, "HNP: b_wait_acon timeout; back to b_peripheral\n");
+ 		musb_g_disconnect(musb);
+-		musb->xceiv.state = OTG_STATE_B_PERIPHERAL;
++		musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ 		musb->is_active = 0;
+ 		break;
+ 	case OTG_STATE_A_WAIT_BCON:
+@@ -331,20 +331,20 @@ void musb_hnp_stop(struct musb *musb)
+ 	void __iomem	*mbase = musb->mregs;
+ 	u8	reg;
+ 
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_A_PERIPHERAL:
+ 	case OTG_STATE_A_WAIT_VFALL:
+ 	case OTG_STATE_A_WAIT_BCON:
+ 		DBG(1, "HNP: Switching back to A-host\n");
+ 		musb_g_disconnect(musb);
+-		musb->xceiv.state = OTG_STATE_A_IDLE;
++		musb->xceiv->state = OTG_STATE_A_IDLE;
+ 		MUSB_HST_MODE(musb);
+ 		musb->is_active = 0;
+ 		break;
+ 	case OTG_STATE_B_HOST:
+ 		DBG(1, "HNP: Disabling HR\n");
+ 		hcd->self.is_b_host = 0;
+-		musb->xceiv.state = OTG_STATE_B_PERIPHERAL;
++		musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ 		MUSB_DEV_MODE(musb);
+ 		reg = musb_readb(mbase, MUSB_POWER);
+ 		reg |= MUSB_POWER_SUSPENDM;
+@@ -402,7 +402,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 
+ 		if (devctl & MUSB_DEVCTL_HM) {
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+-			switch (musb->xceiv.state) {
++			switch (musb->xceiv->state) {
+ 			case OTG_STATE_A_SUSPEND:
+ 				/* remote wakeup?  later, GetPortStatus
+ 				 * will stop RESUME signaling
+@@ -425,12 +425,12 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 				musb->rh_timer = jiffies
+ 						+ msecs_to_jiffies(20);
+ 
+-				musb->xceiv.state = OTG_STATE_A_HOST;
++				musb->xceiv->state = OTG_STATE_A_HOST;
+ 				musb->is_active = 1;
+ 				usb_hcd_resume_root_hub(musb_to_hcd(musb));
+ 				break;
+ 			case OTG_STATE_B_WAIT_ACON:
+-				musb->xceiv.state = OTG_STATE_B_PERIPHERAL;
++				musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ 				musb->is_active = 1;
+ 				MUSB_DEV_MODE(musb);
+ 				break;
+@@ -441,11 +441,11 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 			}
+ #endif
+ 		} else {
+-			switch (musb->xceiv.state) {
++			switch (musb->xceiv->state) {
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+ 			case OTG_STATE_A_SUSPEND:
+ 				/* possibly DISCONNECT is upcoming */
+-				musb->xceiv.state = OTG_STATE_A_HOST;
++				musb->xceiv->state = OTG_STATE_A_HOST;
+ 				usb_hcd_resume_root_hub(musb_to_hcd(musb));
+ 				break;
+ #endif
+@@ -490,7 +490,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 		 */
+ 		musb_writeb(mbase, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
+ 		musb->ep0_stage = MUSB_EP0_START;
+-		musb->xceiv.state = OTG_STATE_A_IDLE;
++		musb->xceiv->state = OTG_STATE_A_IDLE;
+ 		MUSB_HST_MODE(musb);
+ 		musb_set_vbus(musb, 1);
+ 
+@@ -516,7 +516,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 		 * REVISIT:  do delays from lots of DEBUG_KERNEL checks
+ 		 * make trouble here, keeping VBUS < 4.4V ?
+ 		 */
+-		switch (musb->xceiv.state) {
++		switch (musb->xceiv->state) {
+ 		case OTG_STATE_A_HOST:
+ 			/* recovery is dicey once we've gotten past the
+ 			 * initial stages of enumeration, but if VBUS
+@@ -602,11 +602,11 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 		MUSB_HST_MODE(musb);
+ 
+ 		/* indicate new connection to OTG machine */
+-		switch (musb->xceiv.state) {
++		switch (musb->xceiv->state) {
+ 		case OTG_STATE_B_PERIPHERAL:
+ 			if (int_usb & MUSB_INTR_SUSPEND) {
+ 				DBG(1, "HNP: SUSPEND+CONNECT, now b_host\n");
+-				musb->xceiv.state = OTG_STATE_B_HOST;
++				musb->xceiv->state = OTG_STATE_B_HOST;
+ 				hcd->self.is_b_host = 1;
+ 				int_usb &= ~MUSB_INTR_SUSPEND;
+ 			} else
+@@ -614,13 +614,13 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 			break;
+ 		case OTG_STATE_B_WAIT_ACON:
+ 			DBG(1, "HNP: Waiting to switch to b_host state\n");
+-			musb->xceiv.state = OTG_STATE_B_HOST;
++			musb->xceiv->state = OTG_STATE_B_HOST;
+ 			hcd->self.is_b_host = 1;
+ 			break;
+ 		default:
+ 			if ((devctl & MUSB_DEVCTL_VBUS)
+ 					== (3 << MUSB_DEVCTL_VBUS_SHIFT)) {
+-				musb->xceiv.state = OTG_STATE_A_HOST;
++				musb->xceiv->state = OTG_STATE_A_HOST;
+ 				hcd->self.is_b_host = 0;
+ 			}
+ 			break;
+@@ -650,7 +650,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 			}
+ 		} else if (is_peripheral_capable()) {
+ 			DBG(1, "BUS RESET as %s\n", otg_state_string(musb));
+-			switch (musb->xceiv.state) {
++			switch (musb->xceiv->state) {
+ #ifdef CONFIG_USB_OTG
+ 			case OTG_STATE_A_SUSPEND:
+ 				/* We need to ignore disconnect on suspend
+@@ -673,12 +673,12 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ 			case OTG_STATE_B_WAIT_ACON:
+ 				DBG(1, "HNP: RESET (%s), to b_peripheral\n",
+ 					otg_state_string(musb));
+-				musb->xceiv.state = OTG_STATE_B_PERIPHERAL;
++				musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ 				musb_g_reset(musb);
+ 				break;
+ #endif
+ 			case OTG_STATE_B_IDLE:
+-				musb->xceiv.state = OTG_STATE_B_PERIPHERAL;
++				musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ 				/* FALLTHROUGH */
+ 			case OTG_STATE_B_PERIPHERAL:
+ 				musb_g_reset(musb);
+@@ -763,7 +763,7 @@ static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb,
+ 				MUSB_MODE(musb), devctl);
+ 		handled = IRQ_HANDLED;
+ 
+-		switch (musb->xceiv.state) {
++		switch (musb->xceiv->state) {
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+ 		case OTG_STATE_A_HOST:
+ 		case OTG_STATE_A_SUSPEND:
+@@ -805,7 +805,7 @@ static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb,
+ 				otg_state_string(musb), devctl, power);
+ 		handled = IRQ_HANDLED;
+ 
+-		switch (musb->xceiv.state) {
++		switch (musb->xceiv->state) {
+ #ifdef	CONFIG_USB_MUSB_OTG
+ 		case OTG_STATE_A_PERIPHERAL:
+ 			/*
+@@ -817,10 +817,10 @@ static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb,
+ 		case OTG_STATE_B_PERIPHERAL:
+ 			musb_g_suspend(musb);
+ 			musb->is_active = is_otg_enabled(musb)
+-					&& musb->xceiv.gadget->b_hnp_enable;
++					&& musb->xceiv->gadget->b_hnp_enable;
+ 			if (musb->is_active) {
+ #ifdef	CONFIG_USB_MUSB_OTG
+-				musb->xceiv.state = OTG_STATE_B_WAIT_ACON;
++				musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
+ 				DBG(1, "HNP: Setting timer for b_ase0_brst\n");
+ 				musb_otg_timer.data = (unsigned long)musb;
+ 				mod_timer(&musb_otg_timer, jiffies
+@@ -834,9 +834,9 @@ static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb,
+ 					+ msecs_to_jiffies(musb->a_wait_bcon));
+ 			break;
+ 		case OTG_STATE_A_HOST:
+-			musb->xceiv.state = OTG_STATE_A_SUSPEND;
++			musb->xceiv->state = OTG_STATE_A_SUSPEND;
+ 			musb->is_active = is_otg_enabled(musb)
+-					&& musb->xceiv.host->b_hnp_enable;
++					&& musb->xceiv->host->b_hnp_enable;
+ 			break;
+ 		case OTG_STATE_B_HOST:
+ 			/* Transition to B_PERIPHERAL, see 6.8.2.6 p 44 */
+@@ -1681,7 +1681,7 @@ musb_vbus_store(struct device *dev, struct device_attribute *attr,
+ 
+ 	spin_lock_irqsave(&musb->lock, flags);
+ 	musb->a_wait_bcon = val;
+-	if (musb->xceiv.state == OTG_STATE_A_WAIT_BCON)
++	if (musb->xceiv->state == OTG_STATE_A_WAIT_BCON)
+ 		musb->is_active = 0;
+ 	musb_platform_try_idle(musb, jiffies + msecs_to_jiffies(val));
+ 	spin_unlock_irqrestore(&musb->lock, flags);
+@@ -1742,8 +1742,8 @@ static void musb_irq_work(struct work_struct *data)
+ 	struct musb *musb = container_of(data, struct musb, irq_work);
+ 	static int old_state;
+ 
+-	if (musb->xceiv.state != old_state) {
+-		old_state = musb->xceiv.state;
++	if (musb->xceiv->state != old_state) {
++		old_state = musb->xceiv->state;
+ 		sysfs_notify(&musb->controller->kobj, NULL, "mode");
+ 	}
+ }
+@@ -1840,7 +1840,7 @@ static void musb_free(struct musb *musb)
+ 	}
+ 
+ #ifdef CONFIG_USB_MUSB_OTG
+-	put_device(musb->xceiv.dev);
++	put_device(musb->xceiv->dev);
+ #endif
+ 
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+@@ -1921,10 +1921,18 @@ bad_config:
+ 		}
+ 	}
+ 
+-	/* assume vbus is off */
+-
+-	/* platform adjusts musb->mregs and musb->isr if needed,
+-	 * and activates clocks
++	/* The musb_platform_init() call:
++	 *   - adjusts musb->mregs and musb->isr if needed,
++	 *   - may initialize an integrated tranceiver
++	 *   - initializes musb->xceiv, usually by otg_get_transceiver()
++	 *   - activates clocks.
++	 *   - stops powering VBUS
++	 *   - assigns musb->board_set_vbus if host mode is enabled
++	 *
++	 * There are various transciever configurations.  Blackfin,
++	 * DaVinci, TUSB60x0, and others integrate them.  OMAP3 uses
++	 * external/discrete ones in various flavors (twl4030 family,
++	 * isp1504, non-OTG, etc) mostly hooking up through ULPI.
+ 	 */
+ 	musb->isr = generic_interrupt;
+ 	status = musb_platform_init(musb);
+@@ -1992,17 +2000,17 @@ bad_config:
+ 				? "DMA" : "PIO",
+ 			musb->nIrq);
+ 
+-#ifdef CONFIG_USB_MUSB_HDRC_HCD
+-	/* host side needs more setup, except for no-host modes */
+-	if (musb->board_mode != MUSB_PERIPHERAL) {
++	/* host side needs more setup */
++	if (is_host_enabled(musb)) {
+ 		struct usb_hcd	*hcd = musb_to_hcd(musb);
+ 
+-		if (musb->board_mode == MUSB_OTG)
++		otg_set_host(musb->xceiv, &hcd->self);
++
++		if (is_otg_enabled(musb))
+ 			hcd->self.otg_port = 1;
+-		musb->xceiv.host = &hcd->self;
++		musb->xceiv->host = &hcd->self;
+ 		hcd->power_budget = 2 * (plat->power ? : 250);
+ 	}
+-#endif				/* CONFIG_USB_MUSB_HDRC_HCD */
+ 
+ 	/* For the host-only role, we can activate right away.
+ 	 * (We expect the ID pin to be forcibly grounded!!)
+@@ -2010,8 +2018,8 @@ bad_config:
+ 	 */
+ 	if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
+ 		MUSB_HST_MODE(musb);
+-		musb->xceiv.default_a = 1;
+-		musb->xceiv.state = OTG_STATE_A_IDLE;
++		musb->xceiv->default_a = 1;
++		musb->xceiv->state = OTG_STATE_A_IDLE;
+ 
+ 		status = usb_add_hcd(musb_to_hcd(musb), -1, 0);
+ 		if (status)
+@@ -2026,8 +2034,8 @@ bad_config:
+ 
+ 	} else /* peripheral is enabled */ {
+ 		MUSB_DEV_MODE(musb);
+-		musb->xceiv.default_a = 0;
+-		musb->xceiv.state = OTG_STATE_B_IDLE;
++		musb->xceiv->default_a = 0;
++		musb->xceiv->state = OTG_STATE_B_IDLE;
+ 
+ 		status = musb_gadget_setup(musb);
+ 		if (status)
+diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
+index 0ac4faf..c3ee348 100644
+--- a/drivers/usb/musb/musb_core.h
++++ b/drivers/usb/musb/musb_core.h
+@@ -356,7 +356,7 @@ struct musb {
+ 	u16			int_rx;
+ 	u16			int_tx;
+ 
+-	struct otg_transceiver	xceiv;
++	struct otg_transceiver	*xceiv;
+ 
+ 	int nIrq;
+ 	unsigned		irq_wake:1;
+diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
+index e8f920c..2fbfba5 100644
+--- a/drivers/usb/musb/musb_gadget.c
++++ b/drivers/usb/musb/musb_gadget.c
+@@ -1406,7 +1406,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
+ 
+ 	spin_lock_irqsave(&musb->lock, flags);
+ 
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_B_PERIPHERAL:
+ 		/* NOTE:  OTG state machine doesn't include B_SUSPENDED;
+ 		 * that's part of the standard usb 1.1 state machine, and
+@@ -1508,9 +1508,9 @@ static int musb_gadget_vbus_draw(struct usb_gadget *gadget, unsigned mA)
+ {
+ 	struct musb	*musb = gadget_to_musb(gadget);
+ 
+-	if (!musb->xceiv.set_power)
++	if (!musb->xceiv->set_power)
+ 		return -EOPNOTSUPP;
+-	return otg_set_power(&musb->xceiv, mA);
++	return otg_set_power(musb->xceiv, mA);
+ }
+ 
+ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
+@@ -1733,11 +1733,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+ 
+ 		spin_lock_irqsave(&musb->lock, flags);
+ 
+-		/* REVISIT always use otg_set_peripheral(), handling
+-		 * issues including the root hub one below ...
+-		 */
+-		musb->xceiv.gadget = &musb->g;
+-		musb->xceiv.state = OTG_STATE_B_IDLE;
++		otg_set_peripheral(musb->xceiv, &musb->g);
+ 		musb->is_active = 1;
+ 
+ 		/* FIXME this ignores the softconnect flag.  Drivers are
+@@ -1749,6 +1745,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+ 		if (!is_otg_enabled(musb))
+ 			musb_start(musb);
+ 
++		otg_set_peripheral(musb->xceiv, &musb->g);
++
+ 		spin_unlock_irqrestore(&musb->lock, flags);
+ 
+ 		if (is_otg_enabled(musb)) {
+@@ -1762,8 +1760,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
+ 			if (retval < 0) {
+ 				DBG(1, "add_hcd failed, %d\n", retval);
+ 				spin_lock_irqsave(&musb->lock, flags);
+-				musb->xceiv.gadget = NULL;
+-				musb->xceiv.state = OTG_STATE_UNDEFINED;
++				otg_set_peripheral(musb->xceiv, NULL);
+ 				musb->gadget_driver = NULL;
+ 				musb->g.dev.driver = NULL;
+ 				spin_unlock_irqrestore(&musb->lock, flags);
+@@ -1846,8 +1843,9 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
+ 
+ 		(void) musb_gadget_vbus_draw(&musb->g, 0);
+ 
+-		musb->xceiv.state = OTG_STATE_UNDEFINED;
++		musb->xceiv->state = OTG_STATE_UNDEFINED;
+ 		stop_activity(musb, driver);
++		otg_set_peripheral(musb->xceiv, NULL);
+ 
+ 		DBG(3, "unregistering driver %s\n", driver->function);
+ 		spin_unlock_irqrestore(&musb->lock, flags);
+@@ -1883,7 +1881,7 @@ EXPORT_SYMBOL(usb_gadget_unregister_driver);
+ void musb_g_resume(struct musb *musb)
+ {
+ 	musb->is_suspended = 0;
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_B_IDLE:
+ 		break;
+ 	case OTG_STATE_B_WAIT_ACON:
+@@ -1909,10 +1907,10 @@ void musb_g_suspend(struct musb *musb)
+ 	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+ 	DBG(3, "devctl %02x\n", devctl);
+ 
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_B_IDLE:
+ 		if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
+-			musb->xceiv.state = OTG_STATE_B_PERIPHERAL;
++			musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ 		break;
+ 	case OTG_STATE_B_PERIPHERAL:
+ 		musb->is_suspended = 1;
+@@ -1958,22 +1956,22 @@ void musb_g_disconnect(struct musb *musb)
+ 		spin_lock(&musb->lock);
+ 	}
+ 
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	default:
+ #ifdef	CONFIG_USB_MUSB_OTG
+ 		DBG(2, "Unhandled disconnect %s, setting a_idle\n",
+ 			otg_state_string(musb));
+-		musb->xceiv.state = OTG_STATE_A_IDLE;
++		musb->xceiv->state = OTG_STATE_A_IDLE;
+ 		break;
+ 	case OTG_STATE_A_PERIPHERAL:
+-		musb->xceiv.state = OTG_STATE_A_WAIT_VFALL;
++		musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ 		break;
+ 	case OTG_STATE_B_WAIT_ACON:
+ 	case OTG_STATE_B_HOST:
+ #endif
+ 	case OTG_STATE_B_PERIPHERAL:
+ 	case OTG_STATE_B_IDLE:
+-		musb->xceiv.state = OTG_STATE_B_IDLE;
++		musb->xceiv->state = OTG_STATE_B_IDLE;
+ 		break;
+ 	case OTG_STATE_B_SRP_INIT:
+ 		break;
+@@ -2029,10 +2027,10 @@ __acquires(musb->lock)
+ 	 * or else after HNP, as A-Device
+ 	 */
+ 	if (devctl & MUSB_DEVCTL_BDEVICE) {
+-		musb->xceiv.state = OTG_STATE_B_PERIPHERAL;
++		musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ 		musb->g.is_a_peripheral = 0;
+ 	} else if (is_otg_enabled(musb)) {
+-		musb->xceiv.state = OTG_STATE_A_PERIPHERAL;
++		musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
+ 		musb->g.is_a_peripheral = 1;
+ 	} else
+ 		WARN_ON(1);
+diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
+index ece5122..795dabe 100644
+--- a/drivers/usb/musb/musb_host.c
++++ b/drivers/usb/musb/musb_host.c
+@@ -2169,7 +2169,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd)
+ {
+ 	struct musb	*musb = hcd_to_musb(hcd);
+ 
+-	if (musb->xceiv.state == OTG_STATE_A_SUSPEND)
++	if (musb->xceiv->state == OTG_STATE_A_SUSPEND)
+ 		return 0;
+ 
+ 	if (is_host_active(musb) && musb->is_active) {
+diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
+index e0e9ce5..7e7900f 100644
+--- a/drivers/usb/musb/musb_virthub.c
++++ b/drivers/usb/musb/musb_virthub.c
+@@ -78,18 +78,18 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
+ 		DBG(3, "Root port suspended, power %02x\n", power);
+ 
+ 		musb->port1_status |= USB_PORT_STAT_SUSPEND;
+-		switch (musb->xceiv.state) {
++		switch (musb->xceiv->state) {
+ 		case OTG_STATE_A_HOST:
+-			musb->xceiv.state = OTG_STATE_A_SUSPEND;
++			musb->xceiv->state = OTG_STATE_A_SUSPEND;
+ 			musb->is_active = is_otg_enabled(musb)
+-					&& musb->xceiv.host->b_hnp_enable;
++					&& musb->xceiv->host->b_hnp_enable;
+ 			musb_platform_try_idle(musb, 0);
+ 			break;
+ #ifdef	CONFIG_USB_MUSB_OTG
+ 		case OTG_STATE_B_HOST:
+-			musb->xceiv.state = OTG_STATE_B_WAIT_ACON;
++			musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
+ 			musb->is_active = is_otg_enabled(musb)
+-					&& musb->xceiv.host->b_hnp_enable;
++					&& musb->xceiv->host->b_hnp_enable;
+ 			musb_platform_try_idle(musb, 0);
+ 			break;
+ #endif
+@@ -116,7 +116,7 @@ static void musb_port_reset(struct musb *musb, bool do_reset)
+ 	void __iomem	*mbase = musb->mregs;
+ 
+ #ifdef CONFIG_USB_MUSB_OTG
+-	if (musb->xceiv.state == OTG_STATE_B_IDLE) {
++	if (musb->xceiv->state == OTG_STATE_B_IDLE) {
+ 		DBG(2, "HNP: Returning from HNP; no hub reset from b_idle\n");
+ 		musb->port1_status &= ~USB_PORT_STAT_RESET;
+ 		return;
+@@ -186,14 +186,14 @@ void musb_root_disconnect(struct musb *musb)
+ 	usb_hcd_poll_rh_status(musb_to_hcd(musb));
+ 	musb->is_active = 0;
+ 
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_A_HOST:
+ 	case OTG_STATE_A_SUSPEND:
+-		musb->xceiv.state = OTG_STATE_A_WAIT_BCON;
++		musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ 		musb->is_active = 0;
+ 		break;
+ 	case OTG_STATE_A_WAIT_VFALL:
+-		musb->xceiv.state = OTG_STATE_B_IDLE;
++		musb->xceiv->state = OTG_STATE_B_IDLE;
+ 		break;
+ 	default:
+ 		DBG(1, "host disconnect (%s)\n", otg_state_string(musb));
+@@ -332,7 +332,7 @@ int musb_hub_control(
+ 			musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
+ 			usb_hcd_poll_rh_status(musb_to_hcd(musb));
+ 			/* NOTE: it might really be A_WAIT_BCON ... */
+-			musb->xceiv.state = OTG_STATE_A_HOST;
++			musb->xceiv->state = OTG_STATE_A_HOST;
+ 		}
+ 
+ 		put_unaligned(cpu_to_le32(musb->port1_status
+diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
+index 901dffd..5f67b03 100644
+--- a/drivers/usb/musb/omap2430.c
++++ b/drivers/usb/musb/omap2430.c
+@@ -62,17 +62,17 @@ static void musb_do_idle(unsigned long _musb)
+ 
+ 	devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+ 
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_A_WAIT_BCON:
+ 		devctl &= ~MUSB_DEVCTL_SESSION;
+ 		musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+ 
+ 		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+ 		if (devctl & MUSB_DEVCTL_BDEVICE) {
+-			musb->xceiv.state = OTG_STATE_B_IDLE;
++			musb->xceiv->state = OTG_STATE_B_IDLE;
+ 			MUSB_DEV_MODE(musb);
+ 		} else {
+-			musb->xceiv.state = OTG_STATE_A_IDLE;
++			musb->xceiv->state = OTG_STATE_A_IDLE;
+ 			MUSB_HST_MODE(musb);
+ 		}
+ 		break;
+@@ -90,7 +90,7 @@ static void musb_do_idle(unsigned long _musb)
+ 			musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
+ 			usb_hcd_poll_rh_status(musb_to_hcd(musb));
+ 			/* NOTE: it might really be A_WAIT_BCON ... */
+-			musb->xceiv.state = OTG_STATE_A_HOST;
++			musb->xceiv->state = OTG_STATE_A_HOST;
+ 		}
+ 		break;
+ #endif
+@@ -98,9 +98,9 @@ static void musb_do_idle(unsigned long _musb)
+ 	case OTG_STATE_A_HOST:
+ 		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+ 		if (devctl &  MUSB_DEVCTL_BDEVICE)
+-			musb->xceiv.state = OTG_STATE_B_IDLE;
++			musb->xceiv->state = OTG_STATE_B_IDLE;
+ 		else
+-			musb->xceiv.state = OTG_STATE_A_WAIT_BCON;
++			musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ #endif
+ 	default:
+ 		break;
+@@ -119,7 +119,7 @@ void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
+ 
+ 	/* Never idle if active, or when VBUS timeout is not set as host */
+ 	if (musb->is_active || ((musb->a_wait_bcon == 0)
+-			&& (musb->xceiv.state == OTG_STATE_A_WAIT_BCON))) {
++			&& (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
+ 		DBG(4, "%s active, deleting timer\n", otg_state_string(musb));
+ 		del_timer(&musb_idle_timer);
+ 		last_timer = jiffies;
+@@ -164,8 +164,8 @@ static void omap_set_vbus(struct musb *musb, int is_on)
+ 
+ 	if (is_on) {
+ 		musb->is_active = 1;
+-		musb->xceiv.default_a = 1;
+-		musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
++		musb->xceiv->default_a = 1;
++		musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ 		devctl |= MUSB_DEVCTL_SESSION;
+ 
+ 		MUSB_HST_MODE(musb);
+@@ -176,8 +176,8 @@ static void omap_set_vbus(struct musb *musb, int is_on)
+ 		 * jumping right to B_IDLE...
+ 		 */
+ 
+-		musb->xceiv.default_a = 0;
+-		musb->xceiv.state = OTG_STATE_B_IDLE;
++		musb->xceiv->default_a = 0;
++		musb->xceiv->state = OTG_STATE_B_IDLE;
+ 		devctl &= ~MUSB_DEVCTL_SESSION;
+ 
+ 		MUSB_DEV_MODE(musb);
+@@ -189,10 +189,6 @@ static void omap_set_vbus(struct musb *musb, int is_on)
+ 		otg_state_string(musb),
+ 		musb_readb(musb->mregs, MUSB_DEVCTL));
+ }
+-static int omap_set_power(struct otg_transceiver *x, unsigned mA)
+-{
+-	return 0;
+-}
+ 
+ static int musb_platform_resume(struct musb *musb);
+ 
+@@ -203,24 +199,6 @@ int musb_platform_set_mode(struct musb *musb, u8 musb_mode)
+ 	devctl |= MUSB_DEVCTL_SESSION;
+ 	musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+ 
+-	switch (musb_mode) {
+-#ifdef CONFIG_USB_MUSB_HDRC_HCD
+-	case MUSB_HOST:
+-		otg_set_host(&musb->xceiv, musb->xceiv.host);
+-		break;
+-#endif
+-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
+-	case MUSB_PERIPHERAL:
+-		otg_set_peripheral(&musb->xceiv, musb->xceiv.gadget);
+-		break;
+-#endif
+-#ifdef CONFIG_USB_MUSB_OTG
+-	case MUSB_OTG:
+-		break;
+-#endif
+-	default:
+-		return -EINVAL;
+-	}
+ 	return 0;
+ }
+ 
+@@ -232,6 +210,16 @@ int __init musb_platform_init(struct musb *musb)
+ 	omap_cfg_reg(AE5_2430_USB0HS_STP);
+ #endif
+ 
++	/* We require some kind of external transceiver, hooked
++	 * up through ULPI.  TWL4030-family PMICs include one,
++	 * which needs a driver, drivers aren't always needed.
++	 */
++	musb->xceiv = otg_get_transceiver();
++	if (!musb->xceiv) {
++		pr_err("HS USB OTG: no transceiver configured\n");
++		return -ENODEV;
++	}
++
+ 	musb_platform_resume(musb);
+ 
+ 	l = omap_readl(OTG_SYSCONFIG);
+@@ -258,8 +246,6 @@ int __init musb_platform_init(struct musb *musb)
+ 
+ 	if (is_host_enabled(musb))
+ 		musb->board_set_vbus = omap_set_vbus;
+-	if (is_peripheral_enabled(musb))
+-		musb->xceiv.set_power = omap_set_power;
+ 	musb->a_wait_bcon = MUSB_TIMEOUT_A_WAIT_BCON;
+ 
+ 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
+@@ -283,8 +269,7 @@ int musb_platform_suspend(struct musb *musb)
+ 	l |= ENABLEWAKEUP;	/* enable wakeup */
+ 	omap_writel(l, OTG_SYSCONFIG);
+ 
+-	if (musb->xceiv.set_suspend)
+-		musb->xceiv.set_suspend(&musb->xceiv, 1);
++	otg_set_suspend(musb->xceiv, 1);
+ 
+ 	if (musb->set_clock)
+ 		musb->set_clock(musb->clock, 0);
+@@ -301,8 +286,7 @@ static int musb_platform_resume(struct musb *musb)
+ 	if (!musb->clock)
+ 		return 0;
+ 
+-	if (musb->xceiv.set_suspend)
+-		musb->xceiv.set_suspend(&musb->xceiv, 0);
++	otg_set_suspend(musb->xceiv, 0);
+ 
+ 	if (musb->set_clock)
+ 		musb->set_clock(musb->clock, 1);
+diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
+index 9e20fd0..c473dec 100644
+--- a/drivers/usb/musb/tusb6010.c
++++ b/drivers/usb/musb/tusb6010.c
+@@ -260,6 +260,8 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf)
+ 		tusb_fifo_read_unaligned(fifo, buf, len);
+ }
+ 
++static struct musb *the_musb;
++
+ #ifdef CONFIG_USB_GADGET_MUSB_HDRC
+ 
+ /* This is used by gadget drivers, and OTG transceiver logic, allowing
+@@ -270,7 +272,7 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf)
+  */
+ static int tusb_draw_power(struct otg_transceiver *x, unsigned mA)
+ {
+-	struct musb	*musb = container_of(x, struct musb, xceiv);
++	struct musb	*musb = the_musb;
+ 	void __iomem	*tbase = musb->ctrl_base;
+ 	u32		reg;
+ 
+@@ -420,7 +422,7 @@ static void musb_do_idle(unsigned long _musb)
+ 
+ 	spin_lock_irqsave(&musb->lock, flags);
+ 
+-	switch (musb->xceiv.state) {
++	switch (musb->xceiv->state) {
+ 	case OTG_STATE_A_WAIT_BCON:
+ 		if ((musb->a_wait_bcon != 0)
+ 			&& (musb->idle_timeout == 0
+@@ -484,7 +486,7 @@ void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
+ 
+ 	/* Never idle if active, or when VBUS timeout is not set as host */
+ 	if (musb->is_active || ((musb->a_wait_bcon == 0)
+-			&& (musb->xceiv.state == OTG_STATE_A_WAIT_BCON))) {
++			&& (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
+ 		DBG(4, "%s active, deleting timer\n", otg_state_string(musb));
+ 		del_timer(&musb_idle_timer);
+ 		last_timer = jiffies;
+@@ -533,8 +535,8 @@ static void tusb_source_power(struct musb *musb, int is_on)
+ 		if (musb->set_clock)
+ 			musb->set_clock(musb->clock, 1);
+ 		timer = OTG_TIMER_MS(OTG_TIME_A_WAIT_VRISE);
+-		musb->xceiv.default_a = 1;
+-		musb->xceiv.state = OTG_STATE_A_WAIT_VRISE;
++		musb->xceiv->default_a = 1;
++		musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ 		devctl |= MUSB_DEVCTL_SESSION;
+ 
+ 		conf |= TUSB_DEV_CONF_USB_HOST_MODE;
+@@ -547,24 +549,24 @@ static void tusb_source_power(struct musb *musb, int is_on)
+ 		/* If ID pin is grounded, we want to be a_idle */
+ 		otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
+ 		if (!(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS)) {
+-			switch (musb->xceiv.state) {
++			switch (musb->xceiv->state) {
+ 			case OTG_STATE_A_WAIT_VRISE:
+ 			case OTG_STATE_A_WAIT_BCON:
+-				musb->xceiv.state = OTG_STATE_A_WAIT_VFALL;
++				musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ 				break;
+ 			case OTG_STATE_A_WAIT_VFALL:
+-				musb->xceiv.state = OTG_STATE_A_IDLE;
++				musb->xceiv->state = OTG_STATE_A_IDLE;
+ 				break;
+ 			default:
+-				musb->xceiv.state = OTG_STATE_A_IDLE;
++				musb->xceiv->state = OTG_STATE_A_IDLE;
+ 			}
+ 			musb->is_active = 0;
+-			musb->xceiv.default_a = 1;
++			musb->xceiv->default_a = 1;
+ 			MUSB_HST_MODE(musb);
+ 		} else {
+ 			musb->is_active = 0;
+-			musb->xceiv.default_a = 0;
+-			musb->xceiv.state = OTG_STATE_B_IDLE;
++			musb->xceiv->default_a = 0;
++			musb->xceiv->state = OTG_STATE_B_IDLE;
+ 			MUSB_DEV_MODE(musb);
+ 		}
+ 
+@@ -675,7 +677,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
+ 		else
+ 			default_a = is_host_enabled(musb);
+ 		DBG(2, "Default-%c\n", default_a ? 'A' : 'B');
+-		musb->xceiv.default_a = default_a;
++		musb->xceiv->default_a = default_a;
+ 		tusb_source_power(musb, default_a);
+ 
+ 		/* Don't allow idling immediately */
+@@ -687,7 +689,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
+ 	if (int_src & TUSB_INT_SRC_VBUS_SENSE_CHNG) {
+ 
+ 		/* B-dev state machine:  no vbus ~= disconnect */
+-		if ((is_otg_enabled(musb) && !musb->xceiv.default_a)
++		if ((is_otg_enabled(musb) && !musb->xceiv->default_a)
+ 				|| !is_host_enabled(musb)) {
+ #ifdef CONFIG_USB_MUSB_HDRC_HCD
+ 			/* ? musb_root_disconnect(musb); */
+@@ -702,9 +704,9 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
+ 
+ 			if (otg_stat & TUSB_DEV_OTG_STAT_SESS_END) {
+ 				DBG(1, "Forcing disconnect (no interrupt)\n");
+-				if (musb->xceiv.state != OTG_STATE_B_IDLE) {
++				if (musb->xceiv->state != OTG_STATE_B_IDLE) {
+ 					/* INTR_DISCONNECT can hide... */
+-					musb->xceiv.state = OTG_STATE_B_IDLE;
++					musb->xceiv->state = OTG_STATE_B_IDLE;
+ 					musb->int_usb |= MUSB_INTR_DISCONNECT;
+ 				}
+ 				musb->is_active = 0;
+@@ -718,7 +720,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
+ 			DBG(2, "vbus change, %s, otg %03x\n",
+ 				otg_state_string(musb), otg_stat);
+ 
+-			switch (musb->xceiv.state) {
++			switch (musb->xceiv->state) {
+ 			case OTG_STATE_A_IDLE:
+ 				DBG(2, "Got SRP, turning on VBUS\n");
+ 				musb_set_vbus(musb, 1);
+@@ -766,7 +768,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
+ 
+ 		DBG(4, "%s timer, %03x\n", otg_state_string(musb), otg_stat);
+ 
+-		switch (musb->xceiv.state) {
++		switch (musb->xceiv->state) {
+ 		case OTG_STATE_A_WAIT_VRISE:
+ 			/* VBUS has probably been valid for a while now,
+ 			 * but may well have bounced out of range a bit
+@@ -778,7 +780,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
+ 					DBG(2, "devctl %02x\n", devctl);
+ 					break;
+ 				}
+-				musb->xceiv.state = OTG_STATE_A_WAIT_BCON;
++				musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ 				musb->is_active = 0;
+ 				idle_timeout = jiffies
+ 					+ msecs_to_jiffies(musb->a_wait_bcon);
+@@ -1094,9 +1096,14 @@ int __init musb_platform_init(struct musb *musb)
+ {
+ 	struct platform_device	*pdev;
+ 	struct resource		*mem;
+-	void __iomem		*sync;
++	void __iomem		*sync = NULL;
+ 	int			ret;
+ 
++	usb_nop_xceiv_register();
++	musb->xceiv = otg_get_transceiver();
++	if (!musb->xceiv)
++		return -ENODEV;
++
+ 	pdev = to_platform_device(musb->controller);
+ 
+ 	/* dma address for async dma */
+@@ -1107,14 +1114,16 @@ int __init musb_platform_init(struct musb *musb)
+ 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ 	if (!mem) {
+ 		pr_debug("no sync dma resource?\n");
+-		return -ENODEV;
++		ret = -ENODEV;
++		goto done;
+ 	}
+ 	musb->sync = mem->start;
+ 
+ 	sync = ioremap(mem->start, mem->end - mem->start + 1);
+ 	if (!sync) {
+ 		pr_debug("ioremap for sync failed\n");
+-		return -ENOMEM;
++		ret = -ENOMEM;
++		goto done;
+ 	}
+ 	musb->sync_va = sync;
+ 
+@@ -1127,28 +1136,37 @@ int __init musb_platform_init(struct musb *musb)
+ 	if (ret) {
+ 		printk(KERN_ERR "Could not start tusb6010 (%d)\n",
+ 				ret);
+-		return -ENODEV;
++		goto done;
+ 	}
+ 	musb->isr = tusb_interrupt;
+ 
+ 	if (is_host_enabled(musb))
+ 		musb->board_set_vbus = tusb_source_power;
+-	if (is_peripheral_enabled(musb))
+-		musb->xceiv.set_power = tusb_draw_power;
++	if (is_peripheral_enabled(musb)) {
++		musb->xceiv->set_power = tusb_draw_power;
++		the_musb = musb;
++	}
+ 
+ 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
+ 
++done:
++	if (ret < 0) {
++		if (sync)
++			iounmap(sync);
++		usb_nop_xceiv_unregister();
++	}
+ 	return ret;
+ }
+ 
+ int musb_platform_exit(struct musb *musb)
+ {
+ 	del_timer_sync(&musb_idle_timer);
++	the_musb = NULL;
+ 
+ 	if (musb->board_set_power)
+ 		musb->board_set_power(0);
+ 
+ 	iounmap(musb->sync_va);
+-
++	usb_nop_xceiv_unregister();
+ 	return 0;
+ }
+-- 
+1.6.0.4
+