usb: musb: drop useless board_mode usage

we are compiling the driver always with full OTG
capabilities, so that board_mode trick becomes
useless.
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/musb/am35x.c

@@ -107,9 +107,8 @@ static void am35x_musb_enable(struct musb *musb)
 	musb_writel(reg_base, CORE_INTR_MASK_SET_REG, AM35X_INTR_USB_MASK);
 
 	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
-	if (is_otg_enabled(musb))
-		musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
-			    AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
+	musb_writel(reg_base, CORE_INTR_SRC_SET_REG,
+			AM35X_INTR_DRVVBUS << AM35X_INTR_USB_SHIFT);
 }
 
 /*
@@ -173,9 +172,6 @@ static void otg_timer(unsigned long _musb)
 			    MUSB_INTR_VBUSERROR << AM35X_INTR_USB_SHIFT);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
 		devctl = musb_readb(mregs, MUSB_DEVCTL);
 		if (devctl & MUSB_DEVCTL_BDEVICE)
 			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
@@ -192,9 +188,6 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
 {
 	static unsigned long last_timer;
 
-	if (!is_otg_enabled(musb))
-		return;
-
 	if (timeout == 0)
 		timeout = jiffies + msecs_to_jiffies(3);
 
@@ -271,8 +264,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
 		u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
 		int err;
 
-		err = is_host_enabled(musb) && (musb->int_usb &
-						MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & MUSB_INTR_VBUSERROR;
 		if (err) {
 			/*
 			 * The Mentor core doesn't debounce VBUS as needed
@@ -289,7 +281,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
 			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) {
+		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -326,7 +318,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
 	}
 
 	/* Poll for ID change */
-	if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
 		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
@@ -369,8 +361,7 @@ static int am35x_musb_init(struct musb *musb)
 	if (IS_ERR_OR_NULL(musb->xceiv))
 		return -ENODEV;
 
-	if (is_host_enabled(musb))
-		setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+	setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
 
 	/* Reset the musb */
 	if (data->reset)
@@ -400,8 +391,7 @@ static int am35x_musb_exit(struct musb *musb)
 	struct musb_hdrc_platform_data *plat = dev->platform_data;
 	struct omap_musb_board_data *data = plat->board_data;
 
-	if (is_host_enabled(musb))
-		del_timer_sync(&otg_workaround);
+	del_timer_sync(&otg_workaround);
 
 	/* Shutdown the on-chip PHY and its PLL. */
 	if (data->set_phy_power)

drivers/usb/musb/blackfin.c

@@ -184,8 +184,8 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
 	}
 
 	/* Start sampling ID pin, when plug is removed from MUSB */
-	if ((is_otg_enabled(musb) && (musb->xceiv->state == OTG_STATE_B_IDLE
-		|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) ||
+	if ((musb->xceiv->state == OTG_STATE_B_IDLE
+		|| musb->xceiv->state == OTG_STATE_A_WAIT_BCON) ||
 		(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
 		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
 		musb->a_wait_bcon = TIMER_DELAY;
@@ -228,18 +228,13 @@ static void musb_conn_timer_handler(unsigned long _musb)
 
 			val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
 			musb_writeb(musb->mregs, MUSB_INTRUSB, val);
-			if (is_otg_enabled(musb))
-				musb->xceiv->state = OTG_STATE_B_IDLE;
-			else
-				musb_writeb(musb->mregs, MUSB_POWER, MUSB_POWER_HSENAB);
+			musb->xceiv->state = OTG_STATE_B_IDLE;
 		}
 		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
 		break;
 	case OTG_STATE_B_IDLE:
-
-		if (!is_peripheral_enabled(musb))
-			break;
-		/* Start a new session.  It seems that MUSB needs taking
+		/*
+		 * Start a new session.  It seems that MUSB needs taking
 		 * some time to recognize the type of the plug inserted?
 		 */
 		val = musb_readw(musb->mregs, MUSB_DEVCTL);
@@ -295,10 +290,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
 
 static void bfin_musb_enable(struct musb *musb)
 {
-	if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
-		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
-		musb->a_wait_bcon = TIMER_DELAY;
-	}
+	/* REVISIT is this really correct ? */
 }
 
 static void bfin_musb_disable(struct musb *musb)
@@ -323,12 +315,6 @@ static int bfin_musb_set_power(struct usb_phy *x, unsigned mA)
 	return 0;
 }
 
-static void bfin_musb_try_idle(struct musb *musb, unsigned long timeout)
-{
-	if (!is_otg_enabled(musb) && is_host_enabled(musb))
-		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
-}
-
 static int bfin_musb_vbus_status(struct musb *musb)
 {
 	return 0;
@@ -424,12 +410,10 @@ static int bfin_musb_init(struct musb *musb)
 
 	bfin_musb_reg_init(musb);
 
-	if (is_host_enabled(musb)) {
-		setup_timer(&musb_conn_timer,
-			musb_conn_timer_handler, (unsigned long) musb);
-	}
-	if (is_peripheral_enabled(musb))
-		musb->xceiv->set_power = bfin_musb_set_power;
+	setup_timer(&musb_conn_timer, musb_conn_timer_handler,
+			(unsigned long) musb);
+
+	musb->xceiv->set_power = bfin_musb_set_power;
 
 	musb->isr = blackfin_interrupt;
 	musb->double_buffer_not_ok = true;
@@ -454,7 +438,6 @@ static const struct musb_platform_ops bfin_ops = {
 	.disable	= bfin_musb_disable,
 
 	.set_mode	= bfin_musb_set_mode,
-	.try_idle	= bfin_musb_try_idle,
 
 	.vbus_status	= bfin_musb_vbus_status,
 	.set_vbus	= bfin_musb_set_vbus,

drivers/usb/musb/da8xx.c

@@ -155,9 +155,8 @@ static void da8xx_musb_enable(struct musb *musb)
 	musb_writel(reg_base, DA8XX_USB_INTR_MASK_SET_REG, mask);
 
 	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
-	if (is_otg_enabled(musb))
-		musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
-			    DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
+	musb_writel(reg_base, DA8XX_USB_INTR_SRC_SET_REG,
+			DA8XX_INTR_DRVVBUS << DA8XX_INTR_USB_SHIFT);
 }
 
 /**
@@ -231,9 +230,6 @@ static void otg_timer(unsigned long _musb)
 			    MUSB_INTR_VBUSERROR << DA8XX_INTR_USB_SHIFT);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
 		/*
 		 * There's no ID-changed IRQ, so we have no good way to tell
 		 * when to switch to the A-Default state machine (by setting
@@ -263,9 +259,6 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
 {
 	static unsigned long last_timer;
 
-	if (!is_otg_enabled(musb))
-		return;
-
 	if (timeout == 0)
 		timeout = jiffies + msecs_to_jiffies(3);
 
@@ -333,8 +326,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 		u8 devctl = musb_readb(mregs, MUSB_DEVCTL);
 		int err;
 
-		err = is_host_enabled(musb) && (musb->int_usb &
-						MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & USB_INTR_VBUSERROR;
 		if (err) {
 			/*
 			 * The Mentor core doesn't debounce VBUS as needed
@@ -351,7 +343,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 			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) {
+		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -382,7 +374,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 		musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);
 
 	/* Poll for ID change */
-	if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
 		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
@@ -430,8 +422,7 @@ static int da8xx_musb_init(struct musb *musb)
 	if (IS_ERR_OR_NULL(musb->xceiv))
 		goto fail;
 
-	if (is_host_enabled(musb))
-		setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
+	setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
 
 	/* Reset the controller */
 	musb_writel(reg_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK);
@@ -454,8 +445,7 @@ static int da8xx_musb_init(struct musb *musb)
 
 static int da8xx_musb_exit(struct musb *musb)
 {
-	if (is_host_enabled(musb))
-		del_timer_sync(&otg_workaround);
+	del_timer_sync(&otg_workaround);
 
 	phy_off();
 

drivers/usb/musb/davinci.c

@@ -115,8 +115,7 @@ static void davinci_musb_enable(struct musb *musb)
 		dma_off = 0;
 
 	/* force a DRVVBUS irq so we can start polling for ID change */
-	if (is_otg_enabled(musb))
-		musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
+	musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
 			DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT);
 }
 
@@ -234,10 +233,8 @@ static void otg_timer(unsigned long _musb)
 			MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
-		/* There's no ID-changed IRQ, so we have no good way to tell
+		/*
+		 * There's no ID-changed IRQ, so we have no good way to tell
 		 * when to switch to the A-Default state machine (by setting
 		 * the DEVCTL.SESSION flag).
 		 *
@@ -315,8 +312,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 		u8	devctl = musb_readb(mregs, MUSB_DEVCTL);
 		int	err = musb->int_usb & MUSB_INTR_VBUSERROR;
 
-		err = is_host_enabled(musb)
-				&& (musb->int_usb & MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & MUSB_INTR_VBUSERROR;
 		if (err) {
 			/* The Mentor core doesn't debounce VBUS as needed
 			 * to cope with device connect current spikes. This
@@ -332,7 +328,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 			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) {
+		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -365,8 +361,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 	musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
 
 	/* poll for ID change */
-	if (is_otg_enabled(musb)
-			&& musb->xceiv->state == OTG_STATE_B_IDLE)
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
 		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
@@ -397,8 +392,7 @@ static int davinci_musb_init(struct musb *musb)
 	if (revision == 0)
 		goto fail;
 
-	if (is_host_enabled(musb))
-		setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+	setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
 
 	davinci_musb_source_power(musb, 0, 1);
 
@@ -419,12 +413,7 @@ static int davinci_musb_init(struct musb *musb)
 	if (cpu_is_davinci_dm355()) {
 		u32	deepsleep = __raw_readl(DM355_DEEPSLEEP);
 
-		if (is_host_enabled(musb)) {
-			deepsleep &= ~DRVVBUS_OVERRIDE;
-		} else {
-			deepsleep &= ~DRVVBUS_FORCE;
-			deepsleep |= DRVVBUS_OVERRIDE;
-		}
+		deepsleep &= ~DRVVBUS_FORCE;
 		__raw_writel(deepsleep, DM355_DEEPSLEEP);
 	}
 
@@ -453,8 +442,7 @@ static int davinci_musb_init(struct musb *musb)
 
 static int davinci_musb_exit(struct musb *musb)
 {
-	if (is_host_enabled(musb))
-		del_timer_sync(&otg_workaround);
+	del_timer_sync(&otg_workaround);
 
 	/* force VBUS off */
 	if (cpu_is_davinci_dm355()) {
@@ -468,7 +456,7 @@ static int davinci_musb_exit(struct musb *musb)
 	davinci_musb_source_power(musb, 0 /*off*/, 1);
 
 	/* delay, to avoid problems with module reload */
-	if (is_host_enabled(musb) && musb->xceiv->otg->default_a) {
+	if (musb->xceiv->otg->default_a) {
 		int	maxdelay = 30;
 		u8	devctl, warn = 0;
 

drivers/usb/musb/musb_core.h

@@ -71,10 +71,6 @@ struct musb_ep;
 #include <linux/usb/hcd.h>
 #include "musb_host.h"
 
-#define	is_peripheral_enabled(musb)	((musb)->board_mode != MUSB_HOST)
-#define	is_host_enabled(musb)		((musb)->board_mode != MUSB_PERIPHERAL)
-#define	is_otg_enabled(musb)		((musb)->board_mode == MUSB_OTG)
-
 /* NOTE:  otg and peripheral-only state machines start at B_IDLE.
  * OTG or host-only go to A_IDLE when ID is sensed.
  */
@@ -376,7 +372,6 @@ struct musb {
 	u16 epmask;
 	u8 nr_endpoints;
 
-	u8 board_mode;		/* enum musb_mode */
 	int			(*board_set_power)(int state);
 
 	u8			min_power;	/* vbus for periph, in mA/2 */

drivers/usb/musb/musb_dsps.c

@@ -137,9 +137,8 @@ static void dsps_musb_enable(struct musb *musb)
 	dsps_writel(reg_base, wrp->epintr_set, epmask);
 	dsps_writel(reg_base, wrp->coreintr_set, coremask);
 	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
-	if (is_otg_enabled(musb))
-		dsps_writel(reg_base, wrp->coreintr_set,
-			    (1 << wrp->drvvbus) << wrp->usb_shift);
+	dsps_writel(reg_base, wrp->coreintr_set,
+		    (1 << wrp->drvvbus) << wrp->usb_shift);
 }
 
 /**
@@ -200,9 +199,6 @@ static void otg_timer(unsigned long _musb)
 			    MUSB_INTR_VBUSERROR << wrp->usb_shift);
 		break;
 	case OTG_STATE_B_IDLE:
-		if (!is_peripheral_enabled(musb))
-			break;
-
 		devctl = dsps_readb(mregs, MUSB_DEVCTL);
 		if (devctl & MUSB_DEVCTL_BDEVICE)
 			mod_timer(&glue->timer,
@@ -223,9 +219,6 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
 	struct dsps_glue *glue = platform_get_drvdata(pdev);
 	static unsigned long last_timer;
 
-	if (!is_otg_enabled(musb))
-		return;
-
 	if (timeout == 0)
 		timeout = jiffies + msecs_to_jiffies(3);
 
@@ -293,7 +286,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 	 * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
 	 * Also, DRVVBUS pulses for SRP (but not at 5V) ...
 	 */
-	if ((usbintr & MUSB_INTR_BABBLE) && is_host_enabled(musb))
+	if (usbintr & MUSB_INTR_BABBLE)
 		pr_info("CAUTION: musb: Babble Interrupt Occured\n");
 
 	if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) {
@@ -302,8 +295,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 		u8 devctl = dsps_readb(mregs, MUSB_DEVCTL);
 		int err;
 
-		err = is_host_enabled(musb) && (musb->int_usb &
-						MUSB_INTR_VBUSERROR);
+		err = musb->int_usb & MUSB_INTR_VBUSERROR;
 		if (err) {
 			/*
 			 * The Mentor core doesn't debounce VBUS as needed
@@ -321,7 +313,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 			mod_timer(&glue->timer,
 					jiffies + wrp->poll_seconds * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
-		} else if (is_host_enabled(musb) && drvvbus) {
+		} else if (drvvbus) {
 			musb->is_active = 1;
 			MUSB_HST_MODE(musb);
 			musb->xceiv->otg->default_a = 1;
@@ -352,7 +344,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
 		dsps_writel(reg_base, wrp->eoi, 1);
 
 	/* Poll for ID change */
-	if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE)
+	if (musb->xceiv->state == OTG_STATE_B_IDLE)
 		mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
@@ -388,8 +380,7 @@ static int dsps_musb_init(struct musb *musb)
 		goto err0;
 	}
 
-	if (is_host_enabled(musb))
-		setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
+	setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
 
 	/* Reset the musb */
 	dsps_writel(reg_base, wrp->control, (1 << wrp->reset));
@@ -423,8 +414,7 @@ static int dsps_musb_exit(struct musb *musb)
 	struct platform_device *pdev = to_platform_device(dev->parent);
 	struct dsps_glue *glue = platform_get_drvdata(pdev);
 
-	if (is_host_enabled(musb))
-		del_timer_sync(&glue->timer);
+	del_timer_sync(&glue->timer);
 
 	/* Shutdown the on-chip PHY and its PLL. */
 	if (data->set_phy_power)

drivers/usb/musb/musb_gadget.c

@@ -1864,8 +1864,7 @@ int __devinit musb_gadget_setup(struct musb *musb)
 	musb->g.dev.release = musb_gadget_release;
 	musb->g.name = musb_driver_name;
 
-	if (is_otg_enabled(musb))
-		musb->g.is_otg = 1;
+	musb->g.is_otg = 1;
 
 	musb_g_init_endpoints(musb);
 
@@ -1911,11 +1910,14 @@ static int musb_gadget_start(struct usb_gadget *g,
 {
 	struct musb		*musb = gadget_to_musb(g);
 	struct usb_otg		*otg = musb->xceiv->otg;
+	struct usb_hcd		*hcd = musb_to_hcd(musb);
 	unsigned long		flags;
-	int			retval = -EINVAL;
+	int			retval = 0;
 
-	if (driver->max_speed < USB_SPEED_HIGH)
-		goto err0;
+	if (driver->max_speed < USB_SPEED_HIGH) {
+		retval = -EINVAL;
+		goto err;
+	}
 
 	pm_runtime_get_sync(musb->controller);
 
@@ -1929,49 +1931,30 @@ static int musb_gadget_start(struct usb_gadget *g,
 
 	otg_set_peripheral(otg, &musb->g);
 	musb->xceiv->state = OTG_STATE_B_IDLE;
-
-	/*
-	 * FIXME this ignores the softconnect flag.  Drivers are
-	 * allowed hold the peripheral inactive until for example
-	 * userspace hooks up printer hardware or DSP codecs, so
-	 * hosts only see fully functional devices.
-	 */
-
-	if (!is_otg_enabled(musb))
-		musb_start(musb);
-
 	spin_unlock_irqrestore(&musb->lock, flags);
 
-	if (is_otg_enabled(musb)) {
-		struct usb_hcd	*hcd = musb_to_hcd(musb);
-
-		dev_dbg(musb->controller, "OTG startup...\n");
+	/* REVISIT:  funcall to other code, which also
+	 * handles power budgeting ... this way also
+	 * ensures HdrcStart is indirectly called.
+	 */
+	retval = usb_add_hcd(hcd, 0, 0);
+	if (retval < 0) {
+		dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
+		goto err;
+	}
 
-		/* REVISIT:  funcall to other code, which also
-		 * handles power budgeting ... this way also
-		 * ensures HdrcStart is indirectly called.
-		 */
-		retval = usb_add_hcd(musb_to_hcd(musb), 0, 0);
-		if (retval < 0) {
-			dev_dbg(musb->controller, "add_hcd failed, %d\n", retval);
-			goto err2;
-		}
+	if ((musb->xceiv->last_event == USB_EVENT_ID)
+				&& otg->set_vbus)
+		otg_set_vbus(otg, 1);
 
-		if ((musb->xceiv->last_event == USB_EVENT_ID)
-					&& otg->set_vbus)
-			otg_set_vbus(otg, 1);
+	hcd->self.uses_pio_for_control = 1;
 
-		hcd->self.uses_pio_for_control = 1;
-	}
 	if (musb->xceiv->last_event == USB_EVENT_NONE)
 		pm_runtime_put(musb->controller);
 
 	return 0;
 
-err2:
-	if (!is_otg_enabled(musb))
-		musb_stop(musb);
-err0:
+err:
 	return retval;
 }
 
@@ -2049,16 +2032,12 @@ static int musb_gadget_stop(struct usb_gadget *g,
 	musb_platform_try_idle(musb, 0);
 	spin_unlock_irqrestore(&musb->lock, flags);
 
-	if (is_otg_enabled(musb)) {
-		usb_remove_hcd(musb_to_hcd(musb));
-		/* FIXME we need to be able to register another
-		 * gadget driver here and have everything work;
-		 * that currently misbehaves.
-		 */
-	}
-
-	if (!is_otg_enabled(musb))
-		musb_stop(musb);
+	usb_remove_hcd(musb_to_hcd(musb));
+	/*
+	 * FIXME we need to be able to register another
+	 * gadget driver here and have everything work;
+	 * that currently misbehaves.
+	 */
 
 	pm_runtime_put(musb->controller);
 
@@ -2220,13 +2199,11 @@ __acquires(musb->lock)
 	if (devctl & MUSB_DEVCTL_BDEVICE) {
 		musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
 		musb->g.is_a_peripheral = 0;
-	} else if (is_otg_enabled(musb)) {
+	} else {
 		musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
 		musb->g.is_a_peripheral = 1;
-	} else
-		WARN_ON(1);
+	}
 
 	/* start with default limits on VBUS power draw */
-	(void) musb_gadget_vbus_draw(&musb->g,
-			is_otg_enabled(musb) ? 8 : 100);
+	(void) musb_gadget_vbus_draw(&musb->g, 8);
 }

drivers/usb/musb/musb_virthub.c

@@ -81,8 +81,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
 		switch (musb->xceiv->state) {
 		case OTG_STATE_A_HOST:
 			musb->xceiv->state = OTG_STATE_A_SUSPEND;
-			musb->is_active = is_otg_enabled(musb)
-					&& otg->host->b_hnp_enable;
+			musb->is_active = otg->host->b_hnp_enable;
 			if (musb->is_active)
 				mod_timer(&musb->otg_timer, jiffies
 					+ msecs_to_jiffies(
@@ -91,8 +90,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend)
 			break;
 		case OTG_STATE_B_HOST:
 			musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
-			musb->is_active = is_otg_enabled(musb)
-					&& otg->host->b_hnp_enable;
+			musb->is_active = otg->host->b_hnp_enable;
 			musb_platform_try_idle(musb, 0);
 			break;
 		default:
@@ -190,8 +188,7 @@ void musb_root_disconnect(struct musb *musb)
 
 	switch (musb->xceiv->state) {
 	case OTG_STATE_A_SUSPEND:
-		if (is_otg_enabled(musb)
-				&& otg->host->b_hnp_enable) {
+		if (otg->host->b_hnp_enable) {
 			musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
 			musb->g.is_a_peripheral = 1;
 			break;
@@ -273,7 +270,7 @@ int musb_hub_control(
 			musb_port_suspend(musb, false);
 			break;
 		case USB_PORT_FEAT_POWER:
-			if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
+			if (!hcd->self.is_b_host)
 				musb_platform_set_vbus(musb, 0);
 			break;
 		case USB_PORT_FEAT_C_CONNECTION:
@@ -369,7 +366,7 @@ int musb_hub_control(
 			 * initialization logic, e.g. for OTG, or change any
 			 * logic relating to VBUS power-up.
 			 */
-			if (!(is_otg_enabled(musb) && hcd->self.is_b_host))
+			if (!hcd->self.is_b_host)
 				musb_start(musb);
 			break;
 		case USB_PORT_FEAT_RESET:

drivers/usb/musb/omap2430.c

@@ -258,7 +258,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 		otg->default_a = true;
 		musb->xceiv->state = OTG_STATE_A_IDLE;
 		musb->xceiv->last_event = USB_EVENT_ID;
-		if (!is_otg_enabled(musb) || musb->gadget_driver) {
+		if (musb->gadget_driver) {
 			pm_runtime_get_sync(dev);
 			usb_phy_init(musb->xceiv);
 			omap2430_musb_set_vbus(musb, 1);
@@ -281,11 +281,10 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 		dev_dbg(dev, "VBUS Disconnect\n");
 
 		musb->xceiv->last_event = USB_EVENT_NONE;
-		if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
-			if (musb->gadget_driver) {
-				pm_runtime_mark_last_busy(dev);
-				pm_runtime_put_autosuspend(dev);
-			}
+		if (musb->gadget_driver) {
+			pm_runtime_mark_last_busy(dev);
+			pm_runtime_put_autosuspend(dev);
+		}
 
 		if (data->interface_type == MUSB_INTERFACE_UTMI) {
 			if (musb->xceiv->otg->set_vbus)

drivers/usb/musb/tusb6010.c

@@ -437,14 +437,13 @@ static void musb_do_idle(unsigned long _musb)
 		if (is_host_active(musb) && (musb->port1_status >> 16))
 			goto done;
 
-		if (is_peripheral_enabled(musb) && !musb->gadget_driver) {
+		if (!musb->gadget_driver) {
 			wakeups = 0;
 		} else {
 			wakeups = TUSB_PRCM_WHOSTDISCON
 				| TUSB_PRCM_WBUS
 					| TUSB_PRCM_WVBUS;
-			if (is_otg_enabled(musb))
-				wakeups |= TUSB_PRCM_WID;
+			wakeups |= TUSB_PRCM_WID;
 		}
 		tusb_allow_idle(musb, wakeups);
 	}
@@ -582,21 +581,12 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
  *
  * Note that if a mini-A cable is plugged in the ID line will stay down as
  * the weak ID pull-up is not able to pull the ID up.
- *
- * REVISIT: It would be possible to add support for changing between host
- * and peripheral modes in non-OTG configurations by reconfiguring hardware
- * and then setting musb->board_mode. For now, only support OTG mode.
  */
 static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)
 {
 	void __iomem	*tbase = musb->ctrl_base;
 	u32		otg_stat, phy_otg_ctrl, phy_otg_ena, dev_conf;
 
-	if (musb->board_mode != MUSB_OTG) {
-		ERR("Changing mode currently only supported in OTG mode\n");
-		return -EINVAL;
-	}
-
 	otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
 	phy_otg_ctrl = musb_readl(tbase, TUSB_PHY_OTG_CTRL);
 	phy_otg_ena = musb_readl(tbase, TUSB_PHY_OTG_CTRL_ENABLE);
@@ -652,10 +642,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
 	if ((int_src & TUSB_INT_SRC_ID_STATUS_CHNG)) {
 		int	default_a;
 
-		if (is_otg_enabled(musb))
-			default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
-		else
-			default_a = is_host_enabled(musb);
+		default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
 		dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B');
 		otg->default_a = default_a;
 		tusb_musb_set_vbus(musb, default_a);
@@ -669,8 +656,7 @@ 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) && !otg->default_a)
-				|| !is_host_enabled(musb)) {
+		if (!otg->default_a) {
 			/* ? musb_root_disconnect(musb); */
 			musb->port1_status &=
 				~(USB_PORT_STAT_CONNECTION
@@ -1119,10 +1105,8 @@ static int tusb_musb_init(struct musb *musb)
 	}
 	musb->isr = tusb_musb_interrupt;
 
-	if (is_peripheral_enabled(musb)) {
-		musb->xceiv->set_power = tusb_draw_power;
-		the_musb = musb;
-	}
+	musb->xceiv->set_power = tusb_draw_power;
+	the_musb = musb;
 
 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);