usb: musb: remove unused davinci support

The musb-davinci driver was only used on dm644x, which got removed
in linux-6.0. The only remaining davinci machines are da8xx
devicetree based and do not use this hardware.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20221019152947.3857217-6-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 606 deletions

diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
deleted file mode 100644
index 704435526394..000000000000
--- a/drivers/usb/musb/davinci.c
+++ /dev/null
@@ -1,606 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2005-2006 by Texas Instruments
- *
- * This file is part of the Inventra Controller Driver for Linux.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/list.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/gpio/consumer.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/usb/usb_phy_generic.h>
-
-#include <mach/cputype.h>
-#include <mach/hardware.h>
-
-#include <asm/mach-types.h>
-
-#include "musb_core.h"
-
-#include "davinci.h"
-#include "cppi_dma.h"
-
-
-#define USB_PHY_CTRL	IO_ADDRESS(USBPHY_CTL_PADDR)
-#define DM355_DEEPSLEEP	IO_ADDRESS(DM355_DEEPSLEEP_PADDR)
-
-struct davinci_glue {
-	struct device		*dev;
-	struct platform_device	*musb;
-	struct clk		*clk;
-	bool			vbus_state;
-	struct gpio_desc	*vbus;
-	struct work_struct	vbus_work;
-};
-
-/* REVISIT (PM) we should be able to keep the PHY in low power mode most
- * of the time (24 MHZ oscillator and PLL off, etc) by setting POWER.D0
- * and, when in host mode, autosuspending idle root ports... PHYPLLON
- * (overriding SUSPENDM?) then likely needs to stay off.
- */
-
-static inline void phy_on(void)
-{
-	u32	phy_ctrl = __raw_readl(USB_PHY_CTRL);
-
-	/* power everything up; start the on-chip PHY and its PLL */
-	phy_ctrl &= ~(USBPHY_OSCPDWN | USBPHY_OTGPDWN | USBPHY_PHYPDWN);
-	phy_ctrl |= USBPHY_SESNDEN | USBPHY_VBDTCTEN | USBPHY_PHYPLLON;
-	__raw_writel(phy_ctrl, USB_PHY_CTRL);
-
-	/* wait for PLL to lock before proceeding */
-	while ((__raw_readl(USB_PHY_CTRL) & USBPHY_PHYCLKGD) == 0)
-		cpu_relax();
-}
-
-static inline void phy_off(void)
-{
-	u32	phy_ctrl = __raw_readl(USB_PHY_CTRL);
-
-	/* powerdown the on-chip PHY, its PLL, and the OTG block */
-	phy_ctrl &= ~(USBPHY_SESNDEN | USBPHY_VBDTCTEN | USBPHY_PHYPLLON);
-	phy_ctrl |= USBPHY_OSCPDWN | USBPHY_OTGPDWN | USBPHY_PHYPDWN;
-	__raw_writel(phy_ctrl, USB_PHY_CTRL);
-}
-
-static int dma_off = 1;
-
-static void davinci_musb_enable(struct musb *musb)
-{
-	u32	tmp, old, val;
-
-	/* workaround:  setup irqs through both register sets */
-	tmp = (musb->epmask & DAVINCI_USB_TX_ENDPTS_MASK)
-			<< DAVINCI_USB_TXINT_SHIFT;
-	musb_writel(musb->ctrl_base, DAVINCI_USB_INT_MASK_SET_REG, tmp);
-	old = tmp;
-	tmp = (musb->epmask & (0xfffe & DAVINCI_USB_RX_ENDPTS_MASK))
-			<< DAVINCI_USB_RXINT_SHIFT;
-	musb_writel(musb->ctrl_base, DAVINCI_USB_INT_MASK_SET_REG, tmp);
-	tmp |= old;
-
-	val = ~MUSB_INTR_SOF;
-	tmp |= ((val & 0x01ff) << DAVINCI_USB_USBINT_SHIFT);
-	musb_writel(musb->ctrl_base, DAVINCI_USB_INT_MASK_SET_REG, tmp);
-
-	if (is_dma_capable() && !dma_off)
-		printk(KERN_WARNING "%s %s: dma not reactivated\n",
-				__FILE__, __func__);
-	else
-		dma_off = 0;
-
-	/* force a DRVVBUS irq so we can start polling for ID change */
-	musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
-			DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT);
-}
-
-/*
- * Disable the HDRC and flush interrupts
- */
-static void davinci_musb_disable(struct musb *musb)
-{
-	/* because we don't set CTRLR.UINT, "important" to:
-	 *  - not read/write INTRUSB/INTRUSBE
-	 *  - (except during initial setup, as workaround)
-	 *  - use INTSETR/INTCLRR instead
-	 */
-	musb_writel(musb->ctrl_base, DAVINCI_USB_INT_MASK_CLR_REG,
-			  DAVINCI_USB_USBINT_MASK
-			| DAVINCI_USB_TXINT_MASK
-			| DAVINCI_USB_RXINT_MASK);
-	musb_writel(musb->ctrl_base, DAVINCI_USB_EOI_REG, 0);
-
-	if (is_dma_capable() && !dma_off)
-		WARNING("dma still active\n");
-}
-
-
-#define	portstate(stmt)		stmt
-
-/*
- * VBUS SWITCHING IS BOARD-SPECIFIC ... at least for the DM6446 EVM,
- * which doesn't wire DRVVBUS to the FET that switches it.  Unclear
- * if that's a problem with the DM6446 chip or just with that board.
- *
- * In either case, the DM355 EVM automates DRVVBUS the normal way,
- * when J10 is out, and TI documents it as handling OTG.
- */
-
-/* I2C operations are always synchronous, and require a task context.
- * With unloaded systems, using the shared workqueue seems to suffice
- * to satisfy the 100msec A_WAIT_VRISE timeout...
- */
-static void evm_deferred_drvvbus(struct work_struct *work)
-{
-	struct davinci_glue *glue = container_of(work, struct davinci_glue,
-						 vbus_work);
-
-	gpiod_set_value_cansleep(glue->vbus, glue->vbus_state);
-	glue->vbus_state = !glue->vbus_state;
-}
-
-static void davinci_musb_source_power(struct musb *musb, int is_on,
-				      int immediate)
-{
-	struct davinci_glue *glue = dev_get_drvdata(musb->controller->parent);
-
-	/* This GPIO handling is entirely optional */
-	if (!glue->vbus)
-		return;
-
-	if (is_on)
-		is_on = 1;
-
-	if (glue->vbus_state == is_on)
-		return;
-	/* 0/1 vs "-1 == unknown/init" */
-	glue->vbus_state = !is_on;
-
-	if (machine_is_davinci_evm()) {
-		if (immediate)
-			gpiod_set_value_cansleep(glue->vbus, glue->vbus_state);
-		else
-			schedule_work(&glue->vbus_work);
-	}
-	if (immediate)
-		glue->vbus_state = is_on;
-}
-
-static void davinci_musb_set_vbus(struct musb *musb, int is_on)
-{
-	WARN_ON(is_on && is_peripheral_active(musb));
-	davinci_musb_source_power(musb, is_on, 0);
-}
-
-
-#define	POLL_SECONDS	2
-
-static void otg_timer(struct timer_list *t)
-{
-	struct musb		*musb = from_timer(musb, t, dev_timer);
-	void __iomem		*mregs = musb->mregs;
-	u8			devctl;
-	unsigned long		flags;
-
-	/* We poll because DaVinci's won't expose several OTG-critical
-	* status change events (from the transceiver) otherwise.
-	 */
-	devctl = musb_readb(mregs, MUSB_DEVCTL);
-	dev_dbg(musb->controller, "poll devctl %02x (%s)\n", devctl,
-		usb_otg_state_string(musb->xceiv->otg->state));
-
-	spin_lock_irqsave(&musb->lock, flags);
-	switch (musb->xceiv->otg->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
-		 * case "recover"), in routine "VBUS was valid by the time
-		 * VBUSERR got reported during enumeration" cases.
-		 */
-		if (devctl & MUSB_DEVCTL_VBUS) {
-			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
-			break;
-		}
-		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
-		musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
-			MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
-		break;
-	case OTG_STATE_B_IDLE:
-		/*
-		 * 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).
-		 *
-		 * Workaround:  whenever we're in B_IDLE, try setting the
-		 * session flag every few seconds.  If it works, ID was
-		 * grounded and we're now in the A-Default state machine.
-		 *
-		 * NOTE setting the session flag is _supposed_ to trigger
-		 * SRP, but clearly it doesn't.
-		 */
-		musb_writeb(mregs, MUSB_DEVCTL,
-				devctl | MUSB_DEVCTL_SESSION);
-		devctl = musb_readb(mregs, MUSB_DEVCTL);
-		if (devctl & MUSB_DEVCTL_BDEVICE)
-			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
-		else
-			musb->xceiv->otg->state = OTG_STATE_A_IDLE;
-		break;
-	default:
-		break;
-	}
-	spin_unlock_irqrestore(&musb->lock, flags);
-}
-
-static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
-{
-	unsigned long	flags;
-	irqreturn_t	retval = IRQ_NONE;
-	struct musb	*musb = __hci;
-	struct usb_otg	*otg = musb->xceiv->otg;
-	void __iomem	*tibase = musb->ctrl_base;
-	struct cppi	*cppi;
-	u32		tmp;
-
-	spin_lock_irqsave(&musb->lock, flags);
-
-	/* NOTE: DaVinci shadows the Mentor IRQs.  Don't manage them through
-	 * the Mentor registers (except for setup), use the TI ones and EOI.
-	 *
-	 * Docs describe irq "vector" registers associated with the CPPI and
-	 * USB EOI registers.  These hold a bitmask corresponding to the
-	 * current IRQ, not an irq handler address.  Would using those bits
-	 * resolve some of the races observed in this dispatch code??
-	 */
-
-	/* CPPI interrupts share the same IRQ line, but have their own
-	 * mask, state, "vector", and EOI registers.
-	 */
-	cppi = container_of(musb->dma_controller, struct cppi, controller);
-	if (is_cppi_enabled(musb) && musb->dma_controller && !cppi->irq)
-		retval = cppi_interrupt(irq, __hci);
-
-	/* ack and handle non-CPPI interrupts */
-	tmp = musb_readl(tibase, DAVINCI_USB_INT_SRC_MASKED_REG);
-	musb_writel(tibase, DAVINCI_USB_INT_SRC_CLR_REG, tmp);
-	dev_dbg(musb->controller, "IRQ %08x\n", tmp);
-
-	musb->int_rx = (tmp & DAVINCI_USB_RXINT_MASK)
-			>> DAVINCI_USB_RXINT_SHIFT;
-	musb->int_tx = (tmp & DAVINCI_USB_TXINT_MASK)
-			>> DAVINCI_USB_TXINT_SHIFT;
-	musb->int_usb = (tmp & DAVINCI_USB_USBINT_MASK)
-			>> DAVINCI_USB_USBINT_SHIFT;
-
-	/* DRVVBUS irqs are the only proxy we have (a very poor one!) for
-	 * DaVinci's missing ID change IRQ.  We need an ID change IRQ to
-	 * switch appropriately between halves of the OTG state machine.
-	 * Managing DEVCTL.SESSION per Mentor docs requires we know its
-	 * value, but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set.
-	 * Also, DRVVBUS pulses for SRP (but not at 5V) ...
-	 */
-	if (tmp & (DAVINCI_INTR_DRVVBUS << DAVINCI_USB_USBINT_SHIFT)) {
-		int	drvvbus = musb_readl(tibase, DAVINCI_USB_STAT_REG);
-		void __iomem *mregs = musb->mregs;
-		u8	devctl = musb_readb(mregs, MUSB_DEVCTL);
-		int	err = 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
-			 * means it's not uncommon for bus-powered devices
-			 * to get VBUS errors during enumeration.
-			 *
-			 * This is a workaround, but newer RTL from Mentor
-			 * seems to allow a better one: "re"starting sessions
-			 * without waiting (on EVM, a **long** time) for VBUS
-			 * to stop registering in devctl.
-			 */
-			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
-			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
-			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
-			WARNING("VBUS error workaround (delay coming)\n");
-		} else if (drvvbus) {
-			MUSB_HST_MODE(musb);
-			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
-			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
-			del_timer(&musb->dev_timer);
-		} else {
-			musb->is_active = 0;
-			MUSB_DEV_MODE(musb);
-			musb->xceiv->otg->state = OTG_STATE_B_IDLE;
-			portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
-		}
-
-		/* NOTE:  this must complete poweron within 100 msec
-		 * (OTG_TIME_A_WAIT_VRISE) but we don't check for that.
-		 */
-		davinci_musb_source_power(musb, drvvbus, 0);
-		dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
-				drvvbus ? "on" : "off",
-				usb_otg_state_string(musb->xceiv->otg->state),
-				err ? " ERROR" : "",
-				devctl);
-		retval = IRQ_HANDLED;
-	}
-
-	if (musb->int_tx || musb->int_rx || musb->int_usb)
-		retval |= musb_interrupt(musb);
-
-	/* irq stays asserted until EOI is written */
-	musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
-
-	/* poll for ID change */
-	if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
-		mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
-
-	spin_unlock_irqrestore(&musb->lock, flags);
-
-	return retval;
-}
-
-static int davinci_musb_set_mode(struct musb *musb, u8 mode)
-{
-	/* EVM can't do this (right?) */
-	return -EIO;
-}
-
-static int davinci_musb_init(struct musb *musb)
-{
-	void __iomem	*tibase = musb->ctrl_base;
-	u32		revision;
-	int 		ret = -ENODEV;
-
-	musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
-	if (IS_ERR_OR_NULL(musb->xceiv)) {
-		ret = -EPROBE_DEFER;
-		goto unregister;
-	}
-
-	musb->mregs += DAVINCI_BASE_OFFSET;
-
-	/* returns zero if e.g. not clocked */
-	revision = musb_readl(tibase, DAVINCI_USB_VERSION_REG);
-	if (revision == 0)
-		goto fail;
-
-	timer_setup(&musb->dev_timer, otg_timer, 0);
-
-	davinci_musb_source_power(musb, 0, 1);
-
-	/* dm355 EVM swaps D+/D- for signal integrity, and
-	 * is clocked from the main 24 MHz crystal.
-	 */
-	if (machine_is_davinci_dm355_evm()) {
-		u32	phy_ctrl = __raw_readl(USB_PHY_CTRL);
-
-		phy_ctrl &= ~(3 << 9);
-		phy_ctrl |= USBPHY_DATAPOL;
-		__raw_writel(phy_ctrl, USB_PHY_CTRL);
-	}
-
-	/* On dm355, the default-A state machine needs DRVVBUS control.
-	 * If we won't be a host, there's no need to turn it on.
-	 */
-	if (cpu_is_davinci_dm355()) {
-		u32	deepsleep = __raw_readl(DM355_DEEPSLEEP);
-
-		deepsleep &= ~DRVVBUS_FORCE;
-		__raw_writel(deepsleep, DM355_DEEPSLEEP);
-	}
-
-	/* reset the controller */
-	musb_writel(tibase, DAVINCI_USB_CTRL_REG, 0x1);
-
-	/* start the on-chip PHY and its PLL */
-	phy_on();
-
-	msleep(5);
-
-	/* NOTE:  irqs are in mixed mode, not bypass to pure-musb */
-	pr_debug("DaVinci OTG revision %08x phy %03x control %02x\n",
-		revision, __raw_readl(USB_PHY_CTRL),
-		musb_readb(tibase, DAVINCI_USB_CTRL_REG));
-
-	musb->isr = davinci_musb_interrupt;
-	return 0;
-
-fail:
-	usb_put_phy(musb->xceiv);
-unregister:
-	usb_phy_generic_unregister();
-	return ret;
-}
-
-static int davinci_musb_exit(struct musb *musb)
-{
-	int	maxdelay = 30;
-	u8	devctl, warn = 0;
-
-	del_timer_sync(&musb->dev_timer);
-
-	/* force VBUS off */
-	if (cpu_is_davinci_dm355()) {
-		u32	deepsleep = __raw_readl(DM355_DEEPSLEEP);
-
-		deepsleep &= ~DRVVBUS_FORCE;
-		deepsleep |= DRVVBUS_OVERRIDE;
-		__raw_writel(deepsleep, DM355_DEEPSLEEP);
-	}
-
-	davinci_musb_source_power(musb, 0 /*off*/, 1);
-
-	/*
-	 * delay, to avoid problems with module reload.
-	 * if there's no peripheral connected, this can take a
-	 * long time to fall, especially on EVM with huge C133.
-	 */
-	do {
-		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
-		if (!(devctl & MUSB_DEVCTL_VBUS))
-			break;
-		if ((devctl & MUSB_DEVCTL_VBUS) != warn) {
-			warn = devctl & MUSB_DEVCTL_VBUS;
-			dev_dbg(musb->controller, "VBUS %d\n",
-				warn >> MUSB_DEVCTL_VBUS_SHIFT);
-		}
-		msleep(1000);
-		maxdelay--;
-	} while (maxdelay > 0);
-
-	/* in OTG mode, another host might be connected */
-	if (devctl & MUSB_DEVCTL_VBUS)
-		dev_dbg(musb->controller, "VBUS off timeout (devctl %02x)\n", devctl);
-
-	phy_off();
-
-	usb_put_phy(musb->xceiv);
-
-	return 0;
-}
-
-static const struct musb_platform_ops davinci_ops = {
-	.quirks		= MUSB_DMA_CPPI,
-	.init		= davinci_musb_init,
-	.exit		= davinci_musb_exit,
-
-#ifdef CONFIG_USB_TI_CPPI_DMA
-	.dma_init	= cppi_dma_controller_create,
-	.dma_exit	= cppi_dma_controller_destroy,
-#endif
-	.enable		= davinci_musb_enable,
-	.disable	= davinci_musb_disable,
-
-	.set_mode	= davinci_musb_set_mode,
-
-	.set_vbus	= davinci_musb_set_vbus,
-};
-
-static const struct platform_device_info davinci_dev_info = {
-	.name		= "musb-hdrc",
-	.id		= PLATFORM_DEVID_AUTO,
-	.dma_mask	= DMA_BIT_MASK(32),
-};
-
-static int davinci_probe(struct platform_device *pdev)
-{
-	struct resource			musb_resources[3];
-	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
-	struct platform_device		*musb;
-	struct davinci_glue		*glue;
-	struct platform_device_info	pinfo;
-	struct clk			*clk;
-
-	int				ret = -ENOMEM;
-
-	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
-	if (!glue)
-		goto err0;
-
-	clk = devm_clk_get(&pdev->dev, "usb");
-	if (IS_ERR(clk)) {
-		dev_err(&pdev->dev, "failed to get clock\n");
-		ret = PTR_ERR(clk);
-		goto err0;
-	}
-
-	ret = clk_enable(clk);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to enable clock\n");
-		goto err0;
-	}
-
-	glue->dev			= &pdev->dev;
-	glue->clk			= clk;
-
-	pdata->platform_ops		= &davinci_ops;
-
-	glue->vbus = devm_gpiod_get_optional(&pdev->dev, NULL, GPIOD_OUT_LOW);
-	if (IS_ERR(glue->vbus)) {
-		ret = PTR_ERR(glue->vbus);
-		goto err0;
-	} else {
-		glue->vbus_state = -1;
-		INIT_WORK(&glue->vbus_work, evm_deferred_drvvbus);
-	}
-
-	usb_phy_generic_register();
-	platform_set_drvdata(pdev, glue);
-
-	memset(musb_resources, 0x00, sizeof(*musb_resources) *
-			ARRAY_SIZE(musb_resources));
-
-	musb_resources[0].name = pdev->resource[0].name;
-	musb_resources[0].start = pdev->resource[0].start;
-	musb_resources[0].end = pdev->resource[0].end;
-	musb_resources[0].flags = pdev->resource[0].flags;
-
-	musb_resources[1].name = pdev->resource[1].name;
-	musb_resources[1].start = pdev->resource[1].start;
-	musb_resources[1].end = pdev->resource[1].end;
-	musb_resources[1].flags = pdev->resource[1].flags;
-
-	/*
-	 * For DM6467 3 resources are passed. A placeholder for the 3rd
-	 * resource is always there, so it's safe to always copy it...
-	 */
-	musb_resources[2].name = pdev->resource[2].name;
-	musb_resources[2].start = pdev->resource[2].start;
-	musb_resources[2].end = pdev->resource[2].end;
-	musb_resources[2].flags = pdev->resource[2].flags;
-
-	pinfo = davinci_dev_info;
-	pinfo.parent = &pdev->dev;
-	pinfo.res = musb_resources;
-	pinfo.num_res = ARRAY_SIZE(musb_resources);
-	pinfo.data = pdata;
-	pinfo.size_data = sizeof(*pdata);
-
-	glue->musb = musb = platform_device_register_full(&pinfo);
-	if (IS_ERR(musb)) {
-		ret = PTR_ERR(musb);
-		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
-		goto err1;
-	}
-
-	return 0;
-
-err1:
-	clk_disable(clk);
-
-err0:
-	return ret;
-}
-
-static int davinci_remove(struct platform_device *pdev)
-{
-	struct davinci_glue		*glue = platform_get_drvdata(pdev);
-
-	platform_device_unregister(glue->musb);
-	usb_phy_generic_unregister();
-	clk_disable(glue->clk);
-
-	return 0;
-}
-
-static struct platform_driver davinci_driver = {
-	.probe		= davinci_probe,
-	.remove		= davinci_remove,
-	.driver		= {
-		.name	= "musb-davinci",
-	},
-};
-
-MODULE_DESCRIPTION("DaVinci MUSB Glue Layer");
-MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
-MODULE_LICENSE("GPL v2");
-module_platform_driver(davinci_driver);