[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / host / ehci-mv.c

/*
 * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
 * Author: Chao Xie <chao.xie@marvell.com>
 *        Neil Zhang <zhangwm@marvell.com>
 *
 * 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.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/usb/otg.h>
#include <linux/platform_data/mv_usb.h>

#define CAPLENGTH_MASK         (0xff)

struct ehci_hcd_mv {
	struct usb_hcd *hcd;

	/* Which mode does this ehci running OTG/Host ? */
	int mode;

	void __iomem *phy_regs;
	void __iomem *cap_regs;
	void __iomem *op_regs;

	struct usb_phy *otg;

	struct mv_usb_platform_data *pdata;

	/* clock source and total clock number */
	unsigned int clknum;
	struct clk *clk[0];
};

static void ehci_clock_enable(struct ehci_hcd_mv *ehci_mv)
{
	unsigned int i;

	for (i = 0; i < ehci_mv->clknum; i++)
		clk_enable(ehci_mv->clk[i]);
}

static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv)
{
	unsigned int i;

	for (i = 0; i < ehci_mv->clknum; i++)
		clk_disable(ehci_mv->clk[i]);
}

static int mv_ehci_enable(struct ehci_hcd_mv *ehci_mv)
{
	int retval;

	ehci_clock_enable(ehci_mv);
	if (ehci_mv->pdata->phy_init) {
		retval = ehci_mv->pdata->phy_init(ehci_mv->phy_regs);
		if (retval)
			return retval;
	}

	return 0;
}

static void mv_ehci_disable(struct ehci_hcd_mv *ehci_mv)
{
	if (ehci_mv->pdata->phy_deinit)
		ehci_mv->pdata->phy_deinit(ehci_mv->phy_regs);
	ehci_clock_disable(ehci_mv);
}

static int mv_ehci_reset(struct usb_hcd *hcd)
{
	struct device *dev = hcd->self.controller;
	struct ehci_hcd_mv *ehci_mv = dev_get_drvdata(dev);
	int retval;

	if (ehci_mv == NULL) {
		dev_err(dev, "Can not find private ehci data\n");
		return -ENODEV;
	}

	hcd->has_tt = 1;

	retval = ehci_setup(hcd);
	if (retval)
		dev_err(dev, "ehci_setup failed %d\n", retval);

	return retval;
}

static const struct hc_driver mv_ehci_hc_driver = {
	.description = hcd_name,
	.product_desc = "Marvell EHCI",
	.hcd_priv_size = sizeof(struct ehci_hcd),

	/*
	 * generic hardware linkage
	 */
	.irq = ehci_irq,
	.flags = HCD_MEMORY | HCD_USB2,

	/*
	 * basic lifecycle operations
	 */
	.reset = mv_ehci_reset,
	.start = ehci_run,
	.stop = ehci_stop,
	.shutdown = ehci_shutdown,

	/*
	 * managing i/o requests and associated device resources
	 */
	.urb_enqueue = ehci_urb_enqueue,
	.urb_dequeue = ehci_urb_dequeue,
	.endpoint_disable = ehci_endpoint_disable,
	.endpoint_reset = ehci_endpoint_reset,
	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,

	/*
	 * scheduling support
	 */
	.get_frame_number = ehci_get_frame,

	/*
	 * root hub support
	 */
	.hub_status_data = ehci_hub_status_data,
	.hub_control = ehci_hub_control,
	.bus_suspend = ehci_bus_suspend,
	.bus_resume = ehci_bus_resume,
};

static int mv_ehci_probe(struct platform_device *pdev)
{
	struct mv_usb_platform_data *pdata = pdev->dev.platform_data;
	struct usb_hcd *hcd;
	struct ehci_hcd *ehci;
	struct ehci_hcd_mv *ehci_mv;
	struct resource *r;
	int clk_i, retval = -ENODEV;
	u32 offset;
	size_t size;

	if (!pdata) {
		dev_err(&pdev->dev, "missing platform_data\n");
		return -ENODEV;
	}

	if (usb_disabled())
		return -ENODEV;

	hcd = usb_create_hcd(&mv_ehci_hc_driver, &pdev->dev, "mv ehci");
	if (!hcd)
		return -ENOMEM;

	size = sizeof(*ehci_mv) + sizeof(struct clk *) * pdata->clknum;
	ehci_mv = kzalloc(size, GFP_KERNEL);
	if (ehci_mv == NULL) {
		dev_err(&pdev->dev, "cannot allocate ehci_hcd_mv\n");
		retval = -ENOMEM;
		goto err_put_hcd;
	}

	platform_set_drvdata(pdev, ehci_mv);
	ehci_mv->pdata = pdata;
	ehci_mv->hcd = hcd;

	ehci_mv->clknum = pdata->clknum;
	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++) {
		ehci_mv->clk[clk_i] =
		    clk_get(&pdev->dev, pdata->clkname[clk_i]);
		if (IS_ERR(ehci_mv->clk[clk_i])) {
			dev_err(&pdev->dev, "error get clck \"%s\"\n",
				pdata->clkname[clk_i]);
			retval = PTR_ERR(ehci_mv->clk[clk_i]);
			goto err_put_clk;
		}
	}

	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phyregs");
	if (r == NULL) {
		dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
		retval = -ENODEV;
		goto err_put_clk;
	}

	ehci_mv->phy_regs = ioremap(r->start, resource_size(r));
	if (ehci_mv->phy_regs == 0) {
		dev_err(&pdev->dev, "failed to map phy I/O memory\n");
		retval = -EFAULT;
		goto err_put_clk;
	}

	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "capregs");
	if (!r) {
		dev_err(&pdev->dev, "no I/O memory resource defined\n");
		retval = -ENODEV;
		goto err_iounmap_phyreg;
	}

	ehci_mv->cap_regs = ioremap(r->start, resource_size(r));
	if (ehci_mv->cap_regs == NULL) {
		dev_err(&pdev->dev, "failed to map I/O memory\n");
		retval = -EFAULT;
		goto err_iounmap_phyreg;
	}

	retval = mv_ehci_enable(ehci_mv);
	if (retval) {
		dev_err(&pdev->dev, "init phy error %d\n", retval);
		goto err_iounmap_capreg;
	}

	offset = readl(ehci_mv->cap_regs) & CAPLENGTH_MASK;
	ehci_mv->op_regs =
		(void __iomem *) ((unsigned long) ehci_mv->cap_regs + offset);

	hcd->rsrc_start = r->start;
	hcd->rsrc_len = r->end - r->start + 1;
	hcd->regs = ehci_mv->op_regs;

	hcd->irq = platform_get_irq(pdev, 0);
	if (!hcd->irq) {
		dev_err(&pdev->dev, "Cannot get irq.");
		retval = -ENODEV;
		goto err_disable_clk;
	}

	ehci = hcd_to_ehci(hcd);
	ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs;

	ehci_mv->mode = pdata->mode;
	if (ehci_mv->mode == MV_USB_MODE_OTG) {
#ifdef CONFIG_USB_OTG_UTILS
		ehci_mv->otg = usb_get_phy(USB_PHY_TYPE_USB2);
		if (IS_ERR_OR_NULL(ehci_mv->otg)) {
			dev_err(&pdev->dev,
				"unable to find transceiver\n");
			retval = -ENODEV;
			goto err_disable_clk;
		}

		retval = otg_set_host(ehci_mv->otg->otg, &hcd->self);
		if (retval < 0) {
			dev_err(&pdev->dev,
				"unable to register with transceiver\n");
			retval = -ENODEV;
			goto err_put_transceiver;
		}
		/* otg will enable clock before use as host */
		mv_ehci_disable(ehci_mv);
#else
		dev_info(&pdev->dev, "MV_USB_MODE_OTG "
			 "must have CONFIG_USB_OTG_UTILS enabled\n");
		goto err_disable_clk;
#endif
	} else {
		if (pdata->set_vbus)
			pdata->set_vbus(1);

		retval = usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
		if (retval) {
			dev_err(&pdev->dev,
				"failed to add hcd with err %d\n", retval);
			goto err_set_vbus;
		}
	}

	if (pdata->private_init)
		pdata->private_init(ehci_mv->op_regs, ehci_mv->phy_regs);

	dev_info(&pdev->dev,
		 "successful find EHCI device with regs 0x%p irq %d"
		 " working in %s mode\n", hcd->regs, hcd->irq,
		 ehci_mv->mode == MV_USB_MODE_OTG ? "OTG" : "Host");

	return 0;

err_set_vbus:
	if (pdata->set_vbus)
		pdata->set_vbus(0);
#ifdef CONFIG_USB_OTG_UTILS
err_put_transceiver:
	if (!IS_ERR_OR_NULL(ehci_mv->otg))
		usb_put_phy(ehci_mv->otg);
#endif
err_disable_clk:
	mv_ehci_disable(ehci_mv);
err_iounmap_capreg:
	iounmap(ehci_mv->cap_regs);
err_iounmap_phyreg:
	iounmap(ehci_mv->phy_regs);
err_put_clk:
	for (clk_i--; clk_i >= 0; clk_i--)
		clk_put(ehci_mv->clk[clk_i]);
	platform_set_drvdata(pdev, NULL);
	kfree(ehci_mv);
err_put_hcd:
	usb_put_hcd(hcd);

	return retval;
}

static int mv_ehci_remove(struct platform_device *pdev)
{
	struct ehci_hcd_mv *ehci_mv = platform_get_drvdata(pdev);
	struct usb_hcd *hcd = ehci_mv->hcd;
	int clk_i;

	if (hcd->rh_registered)
		usb_remove_hcd(hcd);

	if (!IS_ERR_OR_NULL(ehci_mv->otg)) {
		otg_set_host(ehci_mv->otg->otg, NULL);
		usb_put_phy(ehci_mv->otg);
	}

	if (ehci_mv->mode == MV_USB_MODE_HOST) {
		if (ehci_mv->pdata->set_vbus)
			ehci_mv->pdata->set_vbus(0);

		mv_ehci_disable(ehci_mv);
	}

	iounmap(ehci_mv->cap_regs);
	iounmap(ehci_mv->phy_regs);

	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++)
		clk_put(ehci_mv->clk[clk_i]);

	platform_set_drvdata(pdev, NULL);

	kfree(ehci_mv);
	usb_put_hcd(hcd);

	return 0;
}

MODULE_ALIAS("mv-ehci");

static const struct platform_device_id ehci_id_table[] = {
	{"pxa-u2oehci", PXA_U2OEHCI},
	{"pxa-sph", PXA_SPH},
	{"mmp3-hsic", MMP3_HSIC},
	{"mmp3-fsic", MMP3_FSIC},
	{},
};

static void mv_ehci_shutdown(struct platform_device *pdev)
{
	struct ehci_hcd_mv *ehci_mv = platform_get_drvdata(pdev);
	struct usb_hcd *hcd = ehci_mv->hcd;

	if (!hcd->rh_registered)
		return;

	if (hcd->driver->shutdown)
		hcd->driver->shutdown(hcd);
}

static struct platform_driver ehci_mv_driver = {
	.probe = mv_ehci_probe,
	.remove = mv_ehci_remove,
	.shutdown = mv_ehci_shutdown,
	.driver = {
		   .name = "mv-ehci",
		   .bus = &platform_bus_type,
		   },
	.id_table = ehci_id_table,
};
Commit	Line	Data
3a082ec9 NZ	1	/*
	2	* Copyright (C) 2011 Marvell International Ltd. All rights reserved.
	3	* Author: Chao Xie <chao.xie@marvell.com>
	4	* Neil Zhang <zhangwm@marvell.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2 of the License, or (at your
	9	* option) any later version.
	10	*/
	11
	12	#include <linux/kernel.h>
	13	#include <linux/module.h>
	14	#include <linux/platform_device.h>
	15	#include <linux/clk.h>
ded017ee	16	#include <linux/err.h>
3a082ec9 NZ	17	#include <linux/usb/otg.h>
	18	#include <linux/platform_data/mv_usb.h>
	19
	20	#define CAPLENGTH_MASK (0xff)
	21
	22	struct ehci_hcd_mv {
	23	struct usb_hcd *hcd;
	24
	25	/* Which mode does this ehci running OTG/Host ? */
	26	int mode;
	27
	28	void __iomem *phy_regs;
	29	void __iomem *cap_regs;
	30	void __iomem *op_regs;
	31
86753811	32	struct usb_phy *otg;
3a082ec9 NZ	33
	34	struct mv_usb_platform_data *pdata;
	35
	36	/* clock source and total clock number */
	37	unsigned int clknum;
	38	struct clk *clk[0];
	39	};
	40
	41	static void ehci_clock_enable(struct ehci_hcd_mv *ehci_mv)
	42	{
	43	unsigned int i;
	44
	45	for (i = 0; i < ehci_mv->clknum; i++)
	46	clk_enable(ehci_mv->clk[i]);
	47	}
	48
	49	static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv)
	50	{
	51	unsigned int i;
	52
	53	for (i = 0; i < ehci_mv->clknum; i++)
	54	clk_disable(ehci_mv->clk[i]);
	55	}
	56
	57	static int mv_ehci_enable(struct ehci_hcd_mv *ehci_mv)
	58	{
	59	int retval;
	60
	61	ehci_clock_enable(ehci_mv);
	62	if (ehci_mv->pdata->phy_init) {
	63	retval = ehci_mv->pdata->phy_init(ehci_mv->phy_regs);
	64	if (retval)
	65	return retval;
	66	}
	67
	68	return 0;
	69	}
	70
	71	static void mv_ehci_disable(struct ehci_hcd_mv *ehci_mv)
	72	{
	73	if (ehci_mv->pdata->phy_deinit)
	74	ehci_mv->pdata->phy_deinit(ehci_mv->phy_regs);
	75	ehci_clock_disable(ehci_mv);
	76	}
	77
	78	static int mv_ehci_reset(struct usb_hcd *hcd)
	79	{
3a082ec9 NZ	80	struct device *dev = hcd->self.controller;
	81	struct ehci_hcd_mv *ehci_mv = dev_get_drvdata(dev);
	82	int retval;
	83
	84	if (ehci_mv == NULL) {
	85	dev_err(dev, "Can not find private ehci data\n");
	86	return -ENODEV;
	87	}
	88
3a082ec9	89	hcd->has_tt = 1;
3a082ec9	90
1a49e2ac AS	91	retval = ehci_setup(hcd);
	92	if (retval)
	93	dev_err(dev, "ehci_setup failed %d\n", retval);
3a082ec9	94
1a49e2ac	95	return retval;
3a082ec9 NZ	96	}
	97
	98	static const struct hc_driver mv_ehci_hc_driver = {
	99	.description = hcd_name,
	100	.product_desc = "Marvell EHCI",
	101	.hcd_priv_size = sizeof(struct ehci_hcd),
	102
	103	/*
	104	* generic hardware linkage
	105	*/
	106	.irq = ehci_irq,
	107	.flags = HCD_MEMORY \| HCD_USB2,
	108
	109	/*
	110	* basic lifecycle operations
	111	*/
	112	.reset = mv_ehci_reset,
	113	.start = ehci_run,
	114	.stop = ehci_stop,
	115	.shutdown = ehci_shutdown,
	116
	117	/*
	118	* managing i/o requests and associated device resources
	119	*/
	120	.urb_enqueue = ehci_urb_enqueue,
	121	.urb_dequeue = ehci_urb_dequeue,
	122	.endpoint_disable = ehci_endpoint_disable,
	123	.endpoint_reset = ehci_endpoint_reset,
	124	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
	125
	126	/*
	127	* scheduling support
	128	*/
	129	.get_frame_number = ehci_get_frame,
	130
	131	/*
	132	* root hub support
	133	*/
	134	.hub_status_data = ehci_hub_status_data,
	135	.hub_control = ehci_hub_control,
	136	.bus_suspend = ehci_bus_suspend,
	137	.bus_resume = ehci_bus_resume,
	138	};
	139
	140	static int mv_ehci_probe(struct platform_device *pdev)
	141	{
	142	struct mv_usb_platform_data *pdata = pdev->dev.platform_data;
	143	struct usb_hcd *hcd;
	144	struct ehci_hcd *ehci;
	145	struct ehci_hcd_mv *ehci_mv;
	146	struct resource *r;
	147	int clk_i, retval = -ENODEV;
	148	u32 offset;
	149	size_t size;
	150
	151	if (!pdata) {
	152	dev_err(&pdev->dev, "missing platform_data\n");
	153	return -ENODEV;
	154	}
	155
	156	if (usb_disabled())
	157	return -ENODEV;
	158
	159	hcd = usb_create_hcd(&mv_ehci_hc_driver, &pdev->dev, "mv ehci");
160	if (!hcd)
161	return -ENOMEM;
162
163	size = sizeof(ehci_mv) + sizeof(struct clk ) * pdata->clknum;
164	ehci_mv = kzalloc(size, GFP_KERNEL);
165	if (ehci_mv == NULL) {
166	dev_err(&pdev->dev, "cannot allocate ehci_hcd_mv\n");
167	retval = -ENOMEM;
168	goto err_put_hcd;
169	}
170
171	platform_set_drvdata(pdev, ehci_mv);
172	ehci_mv->pdata = pdata;
173	ehci_mv->hcd = hcd;
174
175	ehci_mv->clknum = pdata->clknum;
176	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++) {
177	ehci_mv->clk[clk_i] =
178	clk_get(&pdev->dev, pdata->clkname[clk_i]);
179	if (IS_ERR(ehci_mv->clk[clk_i])) {
180	dev_err(&pdev->dev, "error get clck \"%s\"\n",
181	pdata->clkname[clk_i]);
182	retval = PTR_ERR(ehci_mv->clk[clk_i]);
183	goto err_put_clk;
184	}
185	}
186
187	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phyregs");
188	if (r == NULL) {
189	dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
190	retval = -ENODEV;
191	goto err_put_clk;
192	}
193
194	ehci_mv->phy_regs = ioremap(r->start, resource_size(r));
195	if (ehci_mv->phy_regs == 0) {
196	dev_err(&pdev->dev, "failed to map phy I/O memory\n");
197	retval = -EFAULT;
198	goto err_put_clk;
199	}
200
201	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "capregs");
202	if (!r) {
203	dev_err(&pdev->dev, "no I/O memory resource defined\n");
204	retval = -ENODEV;
205	goto err_iounmap_phyreg;
206	}
207
208	ehci_mv->cap_regs = ioremap(r->start, resource_size(r));
209	if (ehci_mv->cap_regs == NULL) {
210	dev_err(&pdev->dev, "failed to map I/O memory\n");
211	retval = -EFAULT;
212	goto err_iounmap_phyreg;
213	}
214
215	retval = mv_ehci_enable(ehci_mv);
216	if (retval) {
217	dev_err(&pdev->dev, "init phy error %d\n", retval);
218	goto err_iounmap_capreg;
219	}
220
221	offset = readl(ehci_mv->cap_regs) & CAPLENGTH_MASK;
222	ehci_mv->op_regs =
223	(void __iomem *) ((unsigned long) ehci_mv->cap_regs + offset);
224
225	hcd->rsrc_start = r->start;
226	hcd->rsrc_len = r->end - r->start + 1;
227	hcd->regs = ehci_mv->op_regs;
228
229	hcd->irq = platform_get_irq(pdev, 0);
230	if (!hcd->irq) {
231	dev_err(&pdev->dev, "Cannot get irq.");
232	retval = -ENODEV;
233	goto err_disable_clk;
234	}
235
236	ehci = hcd_to_ehci(hcd);
237	ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs;
3a082ec9 NZ	238
	239	ehci_mv->mode = pdata->mode;
	240	if (ehci_mv->mode == MV_USB_MODE_OTG) {
	241	#ifdef CONFIG_USB_OTG_UTILS
662dca54	242	ehci_mv->otg = usb_get_phy(USB_PHY_TYPE_USB2);
ded017ee	243	if (IS_ERR_OR_NULL(ehci_mv->otg)) {
3a082ec9 NZ	244	dev_err(&pdev->dev,
	245	"unable to find transceiver\n");
	246	retval = -ENODEV;
	247	goto err_disable_clk;
	248	}
	249
6e13c650	250	retval = otg_set_host(ehci_mv->otg->otg, &hcd->self);
3a082ec9 NZ	251	if (retval < 0) {
	252	dev_err(&pdev->dev,
	253	"unable to register with transceiver\n");
	254	retval = -ENODEV;
	255	goto err_put_transceiver;
	256	}
	257	/* otg will enable clock before use as host */
	258	mv_ehci_disable(ehci_mv);
	259	#else
	260	dev_info(&pdev->dev, "MV_USB_MODE_OTG "
	261	"must have CONFIG_USB_OTG_UTILS enabled\n");
	262	goto err_disable_clk;
	263	#endif
	264	} else {
	265	if (pdata->set_vbus)
	266	pdata->set_vbus(1);
	267
	268	retval = usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
	269	if (retval) {
	270	dev_err(&pdev->dev,
	271	"failed to add hcd with err %d\n", retval);
	272	goto err_set_vbus;
	273	}
	274	}
	275
	276	if (pdata->private_init)
	277	pdata->private_init(ehci_mv->op_regs, ehci_mv->phy_regs);
	278
	279	dev_info(&pdev->dev,
	280	"successful find EHCI device with regs 0x%p irq %d"
	281	" working in %s mode\n", hcd->regs, hcd->irq,
	282	ehci_mv->mode == MV_USB_MODE_OTG ? "OTG" : "Host");
	283
	284	return 0;
	285
	286	err_set_vbus:
	287	if (pdata->set_vbus)
	288	pdata->set_vbus(0);
	289	#ifdef CONFIG_USB_OTG_UTILS
	290	err_put_transceiver:
ded017ee	291	if (!IS_ERR_OR_NULL(ehci_mv->otg))
721002ec	292	usb_put_phy(ehci_mv->otg);
3a082ec9 NZ	293	#endif
	294	err_disable_clk:
	295	mv_ehci_disable(ehci_mv);
	296	err_iounmap_capreg:
	297	iounmap(ehci_mv->cap_regs);
	298	err_iounmap_phyreg:
	299	iounmap(ehci_mv->phy_regs);
	300	err_put_clk:
	301	for (clk_i--; clk_i >= 0; clk_i--)
	302	clk_put(ehci_mv->clk[clk_i]);
	303	platform_set_drvdata(pdev, NULL);
	304	kfree(ehci_mv);
	305	err_put_hcd:
	306	usb_put_hcd(hcd);
	307
	308	return retval;
	309	}
	310
	311	static int mv_ehci_remove(struct platform_device *pdev)
	312	{
	313	struct ehci_hcd_mv *ehci_mv = platform_get_drvdata(pdev);
	314	struct usb_hcd *hcd = ehci_mv->hcd;
	315	int clk_i;
	316
	317	if (hcd->rh_registered)
	318	usb_remove_hcd(hcd);
	319
ded017ee	320	if (!IS_ERR_OR_NULL(ehci_mv->otg)) {
6e13c650	321	otg_set_host(ehci_mv->otg->otg, NULL);
721002ec	322	usb_put_phy(ehci_mv->otg);
3a082ec9 NZ	323	}
	324
	325	if (ehci_mv->mode == MV_USB_MODE_HOST) {
	326	if (ehci_mv->pdata->set_vbus)
	327	ehci_mv->pdata->set_vbus(0);
	328
	329	mv_ehci_disable(ehci_mv);
	330	}
	331
	332	iounmap(ehci_mv->cap_regs);
	333	iounmap(ehci_mv->phy_regs);
	334
	335	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++)
	336	clk_put(ehci_mv->clk[clk_i]);
	337
	338	platform_set_drvdata(pdev, NULL);
	339
	340	kfree(ehci_mv);
	341	usb_put_hcd(hcd);
	342
	343	return 0;
	344	}
	345
	346	MODULE_ALIAS("mv-ehci");
	347
	348	static const struct platform_device_id ehci_id_table[] = {
	349	{"pxa-u2oehci", PXA_U2OEHCI},
	350	{"pxa-sph", PXA_SPH},
	351	{"mmp3-hsic", MMP3_HSIC},
	352	{"mmp3-fsic", MMP3_FSIC},
	353	{},
	354	};
	355
	356	static void mv_ehci_shutdown(struct platform_device *pdev)
	357	{
	358	struct ehci_hcd_mv *ehci_mv = platform_get_drvdata(pdev);
	359	struct usb_hcd *hcd = ehci_mv->hcd;
	360
	361	if (!hcd->rh_registered)
	362	return;
	363
	364	if (hcd->driver->shutdown)
	365	hcd->driver->shutdown(hcd);
	366	}
	367
	368	static struct platform_driver ehci_mv_driver = {
	369	.probe = mv_ehci_probe,
	370	.remove = mv_ehci_remove,
	371	.shutdown = mv_ehci_shutdown,
	372	.driver = {
	373	.name = "mv-ehci",
	374	.bus = &platform_bus_type,
	375	},
	376	.id_table = ehci_id_table,
	377	};