[linux-2.6-block.git] / drivers / usb / host / ohci-at91.c

/*
 * OHCI HCD (Host Controller Driver) for USB.
 *
 *  Copyright (C) 2004 SAN People (Pty) Ltd.
 *  Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
 *
 * AT91 Bus Glue
 *
 * Based on fragments of 2.4 driver by Rick Bronson.
 * Based on ohci-omap.c
 *
 * This file is licenced under the GPL.
 */

#include <linux/clk.h>
#include <linux/platform_device.h>

#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/gpio.h>

#include <asm/arch/board.h>
#include <asm/arch/cpu.h>

#ifndef CONFIG_ARCH_AT91
#error "CONFIG_ARCH_AT91 must be defined."
#endif

/* interface and function clocks; sometimes also an AHB clock */
static struct clk *iclk, *fclk, *hclk;
static int clocked;

extern int usb_disabled(void);

/*-------------------------------------------------------------------------*/

static void at91_start_clock(void)
{
	if (cpu_is_at91sam9261())
		clk_enable(hclk);
	clk_enable(iclk);
	clk_enable(fclk);
	clocked = 1;
}

static void at91_stop_clock(void)
{
	clk_disable(fclk);
	clk_disable(iclk);
	if (cpu_is_at91sam9261())
		clk_disable(hclk);
	clocked = 0;
}

static void at91_start_hc(struct platform_device *pdev)
{
	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	struct ohci_regs __iomem *regs = hcd->regs;

	dev_dbg(&pdev->dev, "start\n");

	/*
	 * Start the USB clocks.
	 */
	at91_start_clock();

	/*
	 * The USB host controller must remain in reset.
	 */
	writel(0, &regs->control);
}

static void at91_stop_hc(struct platform_device *pdev)
{
	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	struct ohci_regs __iomem *regs = hcd->regs;

	dev_dbg(&pdev->dev, "stop\n");

	/*
	 * Put the USB host controller into reset.
	 */
	writel(0, &regs->control);

	/*
	 * Stop the USB clocks.
	 */
	at91_stop_clock();
}


/*-------------------------------------------------------------------------*/

static int usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);

/* configure so an HC device and id are always provided */
/* always called with process context; sleeping is OK */


/**
 * usb_hcd_at91_probe - initialize AT91-based HCDs
 * Context: !in_interrupt()
 *
 * Allocates basic resources for this USB host controller, and
 * then invokes the start() method for the HCD associated with it
 * through the hotplug entry's driver_data.
 */
static int usb_hcd_at91_probe(const struct hc_driver *driver,
			struct platform_device *pdev)
{
	int retval;
	struct usb_hcd *hcd = NULL;

	if (pdev->num_resources != 2) {
		pr_debug("hcd probe: invalid num_resources");
		return -ENODEV;
	}

	if ((pdev->resource[0].flags != IORESOURCE_MEM)
			|| (pdev->resource[1].flags != IORESOURCE_IRQ)) {
		pr_debug("hcd probe: invalid resource type\n");
		return -ENODEV;
	}

	hcd = usb_create_hcd(driver, &pdev->dev, "at91");
	if (!hcd)
		return -ENOMEM;
	hcd->rsrc_start = pdev->resource[0].start;
	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;

	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
		pr_debug("request_mem_region failed\n");
		retval = -EBUSY;
		goto err1;
	}

	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
	if (!hcd->regs) {
		pr_debug("ioremap failed\n");
		retval = -EIO;
		goto err2;
	}

	iclk = clk_get(&pdev->dev, "ohci_clk");
	fclk = clk_get(&pdev->dev, "uhpck");
	if (cpu_is_at91sam9261())
		hclk = clk_get(&pdev->dev, "hck0");

	at91_start_hc(pdev);
	ohci_hcd_init(hcd_to_ohci(hcd));

	retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED);
	if (retval == 0)
		return retval;

	/* Error handling */
	at91_stop_hc(pdev);

	if (cpu_is_at91sam9261())
		clk_put(hclk);
	clk_put(fclk);
	clk_put(iclk);

	iounmap(hcd->regs);

 err2:
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);

 err1:
	usb_put_hcd(hcd);
	return retval;
}


/* may be called with controller, bus, and devices active */

/**
 * usb_hcd_at91_remove - shutdown processing for AT91-based HCDs
 * @dev: USB Host Controller being removed
 * Context: !in_interrupt()
 *
 * Reverses the effect of usb_hcd_at91_probe(), first invoking
 * the HCD's stop() method.  It is always called from a thread
 * context, "rmmod" or something similar.
 *
 */
static int usb_hcd_at91_remove(struct usb_hcd *hcd,
				struct platform_device *pdev)
{
	usb_remove_hcd(hcd);
	at91_stop_hc(pdev);
	iounmap(hcd->regs);
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);

	if (cpu_is_at91sam9261())
		clk_put(hclk);
	clk_put(fclk);
	clk_put(iclk);
	fclk = iclk = hclk = NULL;

	dev_set_drvdata(&pdev->dev, NULL);
	return 0;
}

/*-------------------------------------------------------------------------*/

static int __devinit
ohci_at91_start (struct usb_hcd *hcd)
{
	struct at91_usbh_data	*board = hcd->self.controller->platform_data;
	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
	int			ret;

	if ((ret = ohci_init(ohci)) < 0)
		return ret;

	ohci->num_ports = board->ports;

	if ((ret = ohci_run(ohci)) < 0) {
		err("can't start %s", hcd->self.bus_name);
		ohci_stop(hcd);
		return ret;
	}
	return 0;
}

/*-------------------------------------------------------------------------*/

static const struct hc_driver ohci_at91_hc_driver = {
	.description =		hcd_name,
	.product_desc =		"AT91 OHCI",
	.hcd_priv_size =	sizeof(struct ohci_hcd),

	/*
	 * generic hardware linkage
	 */
	.irq =			ohci_irq,
	.flags =		HCD_USB11 | HCD_MEMORY,

	/*
	 * basic lifecycle operations
	 */
	.start =		ohci_at91_start,
	.stop =			ohci_stop,
	.shutdown =		ohci_shutdown,

	/*
	 * managing i/o requests and associated device resources
	 */
	.urb_enqueue =		ohci_urb_enqueue,
	.urb_dequeue =		ohci_urb_dequeue,
	.endpoint_disable =	ohci_endpoint_disable,

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

	/*
	 * root hub support
	 */
	.hub_status_data =	ohci_hub_status_data,
	.hub_control =		ohci_hub_control,
	.hub_irq_enable =	ohci_rhsc_enable,
#ifdef CONFIG_PM
	.bus_suspend =		ohci_bus_suspend,
	.bus_resume =		ohci_bus_resume,
#endif
	.start_port_reset =	ohci_start_port_reset,
};

/*-------------------------------------------------------------------------*/

static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
{
	struct at91_usbh_data	*pdata = pdev->dev.platform_data;
	int			i;

	if (pdata) {
		/* REVISIT make the driver support per-port power switching,
		 * and also overcurrent detection.  Here we assume the ports
		 * are always powered while this driver is active, and use
		 * active-low power switches.
		 */
		for (i = 0; i < pdata->ports; i++) {
			if (pdata->vbus_pin[i] <= 0)
				continue;
			gpio_request(pdata->vbus_pin[i], "ohci_vbus");
			gpio_direction_output(pdata->vbus_pin[i], 0);
		}
	}

	device_init_wakeup(&pdev->dev, 1);
	return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev);
}

static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
{
	struct at91_usbh_data	*pdata = pdev->dev.platform_data;
	int			i;

	if (pdata) {
		for (i = 0; i < pdata->ports; i++) {
			if (pdata->vbus_pin[i] <= 0)
				continue;
			gpio_direction_output(pdata->vbus_pin[i], 1);
			gpio_free(pdata->vbus_pin[i]);
		}
	}

	device_init_wakeup(&pdev->dev, 0);
	return usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev);
}

#ifdef CONFIG_PM

static int
ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
{
	struct usb_hcd	*hcd = platform_get_drvdata(pdev);
	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);

	if (device_may_wakeup(&pdev->dev))
		enable_irq_wake(hcd->irq);

	/*
	 * The integrated transceivers seem unable to notice disconnect,
	 * reconnect, or wakeup without the 48 MHz clock active.  so for
	 * correctness, always discard connection state (using reset).
	 *
	 * REVISIT: some boards will be able to turn VBUS off...
	 */
	if (at91_suspend_entering_slow_clock()) {
		ohci_usb_reset (ohci);
		at91_stop_clock();
	}

	return 0;
}

static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
{
	struct usb_hcd	*hcd = platform_get_drvdata(pdev);

	if (device_may_wakeup(&pdev->dev))
		disable_irq_wake(hcd->irq);

	if (!clocked)
		at91_start_clock();

	ohci_finish_controller_resume(hcd);
	return 0;
}
#else
#define ohci_hcd_at91_drv_suspend NULL
#define ohci_hcd_at91_drv_resume  NULL
#endif

MODULE_ALIAS("platform:at91_ohci");

static struct platform_driver ohci_hcd_at91_driver = {
	.probe		= ohci_hcd_at91_drv_probe,
	.remove		= ohci_hcd_at91_drv_remove,
	.shutdown	= usb_hcd_platform_shutdown,
	.suspend	= ohci_hcd_at91_drv_suspend,
	.resume		= ohci_hcd_at91_drv_resume,
	.driver		= {
		.name	= "at91_ohci",
		.owner	= THIS_MODULE,
	},
};
Commit	Line	Data
39a269c0 AV	1	/*
	2	* OHCI HCD (Host Controller Driver) for USB.
	3	*
	4	* Copyright (C) 2004 SAN People (Pty) Ltd.
	5	* Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
	6	*
0365ee0a	7	* AT91 Bus Glue
39a269c0 AV	8	*
	9	* Based on fragments of 2.4 driver by Rick Bronson.
	10	* Based on ohci-omap.c
	11	*
	12	* This file is licenced under the GPL.
	13	*/
	14
	15	#include <linux/clk.h>
	16	#include <linux/platform_device.h>
	17
	18	#include <asm/mach-types.h>
	19	#include <asm/hardware.h>
4bde4a4c DB	20	#include <asm/gpio.h>
4bde4a4c DB	21
39a269c0	22	#include <asm/arch/board.h>
ed077bb7	23	#include <asm/arch/cpu.h>
39a269c0	24
0365ee0a DB	25	#ifndef CONFIG_ARCH_AT91
0365ee0a DB	26	#error "CONFIG_ARCH_AT91 must be defined."
39a269c0 AV	27	#endif
39a269c0 AV	28
ed077bb7 AV	29	/* interface and function clocks; sometimes also an AHB clock */
ed077bb7 AV	30	static struct clk iclk, fclk, *hclk;
0365ee0a	31	static int clocked;
39a269c0 AV	32
	33	extern int usb_disabled(void);
	34
	35	/-------------------------------------------------------------------------/
	36
ed077bb7 AV	37	static void at91_start_clock(void)
	38	{
	39	if (cpu_is_at91sam9261())
	40	clk_enable(hclk);
	41	clk_enable(iclk);
	42	clk_enable(fclk);
	43	clocked = 1;
	44	}
	45
	46	static void at91_stop_clock(void)
	47	{
	48	clk_disable(fclk);
	49	clk_disable(iclk);
	50	if (cpu_is_at91sam9261())
	51	clk_disable(hclk);
	52	clocked = 0;
	53	}
	54
39a269c0 AV	55	static void at91_start_hc(struct platform_device *pdev)
	56	{
	57	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	58	struct ohci_regs __iomem *regs = hcd->regs;
	59
0365ee0a	60	dev_dbg(&pdev->dev, "start\n");
39a269c0 AV	61
	62	/*
	63	* Start the USB clocks.
	64	*/
ed077bb7	65	at91_start_clock();
39a269c0 AV	66
	67	/*
	68	* The USB host controller must remain in reset.
	69	*/
	70	writel(0, &regs->control);
	71	}
	72
	73	static void at91_stop_hc(struct platform_device *pdev)
	74	{
	75	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	76	struct ohci_regs __iomem *regs = hcd->regs;
	77
0365ee0a	78	dev_dbg(&pdev->dev, "stop\n");
39a269c0 AV	79
	80	/*
	81	* Put the USB host controller into reset.
	82	*/
	83	writel(0, &regs->control);
	84
	85	/*
	86	* Stop the USB clocks.
	87	*/
ed077bb7	88	at91_stop_clock();
39a269c0 AV	89	}
	90
	91
	92	/-------------------------------------------------------------------------/
	93
	94	static int usb_hcd_at91_remove (struct usb_hcd , struct platform_device );
	95
	96	/* configure so an HC device and id are always provided */
	97	/* always called with process context; sleeping is OK */
	98
	99
	100	/**
0365ee0a	101	* usb_hcd_at91_probe - initialize AT91-based HCDs
39a269c0 AV	102	* Context: !in_interrupt()
	103	*
	104	* Allocates basic resources for this USB host controller, and
	105	* then invokes the start() method for the HCD associated with it
	106	* through the hotplug entry's driver_data.
39a269c0	107	*/
0365ee0a DB	108	static int usb_hcd_at91_probe(const struct hc_driver *driver,
0365ee0a DB	109	struct platform_device *pdev)
39a269c0 AV	110	{
	111	int retval;
	112	struct usb_hcd *hcd = NULL;
	113
	114	if (pdev->num_resources != 2) {
	115	pr_debug("hcd probe: invalid num_resources");
	116	return -ENODEV;
	117	}
	118
0365ee0a DB	119	if ((pdev->resource[0].flags != IORESOURCE_MEM)
0365ee0a DB	120	\|\| (pdev->resource[1].flags != IORESOURCE_IRQ)) {
39a269c0 AV	121	pr_debug("hcd probe: invalid resource type\n");
	122	return -ENODEV;
	123	}
	124
0365ee0a	125	hcd = usb_create_hcd(driver, &pdev->dev, "at91");
39a269c0 AV	126	if (!hcd)
	127	return -ENOMEM;
	128	hcd->rsrc_start = pdev->resource[0].start;
	129	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
	130
	131	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
	132	pr_debug("request_mem_region failed\n");
	133	retval = -EBUSY;
	134	goto err1;
	135	}
	136
	137	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
	138	if (!hcd->regs) {
	139	pr_debug("ioremap failed\n");
	140	retval = -EIO;
	141	goto err2;
	142	}
	143
	144	iclk = clk_get(&pdev->dev, "ohci_clk");
	145	fclk = clk_get(&pdev->dev, "uhpck");
ed077bb7 AV	146	if (cpu_is_at91sam9261())
ed077bb7 AV	147	hclk = clk_get(&pdev->dev, "hck0");
39a269c0 AV	148
	149	at91_start_hc(pdev);
	150	ohci_hcd_init(hcd_to_ohci(hcd));
	151
d54b5caa	152	retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED);
39a269c0 AV	153	if (retval == 0)
	154	return retval;
	155
	156	/* Error handling */
	157	at91_stop_hc(pdev);
	158
ed077bb7 AV	159	if (cpu_is_at91sam9261())
ed077bb7 AV	160	clk_put(hclk);
39a269c0 AV	161	clk_put(fclk);
	162	clk_put(iclk);
	163
	164	iounmap(hcd->regs);
	165
	166	err2:
	167	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
	168
	169	err1:
	170	usb_put_hcd(hcd);
	171	return retval;
	172	}
	173
	174
39a269c0 AV	175	/* may be called with controller, bus, and devices active */
	176
	177	/**
0365ee0a	178	* usb_hcd_at91_remove - shutdown processing for AT91-based HCDs
39a269c0 AV	179	* @dev: USB Host Controller being removed
	180	* Context: !in_interrupt()
	181	*
	182	* Reverses the effect of usb_hcd_at91_probe(), first invoking
	183	* the HCD's stop() method. It is always called from a thread
0365ee0a	184	* context, "rmmod" or something similar.
39a269c0 AV	185	*
39a269c0 AV	186	*/
0365ee0a DB	187	static int usb_hcd_at91_remove(struct usb_hcd *hcd,
0365ee0a DB	188	struct platform_device *pdev)
39a269c0 AV	189	{
	190	usb_remove_hcd(hcd);
	191	at91_stop_hc(pdev);
	192	iounmap(hcd->regs);
68ba61b8	193	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
39a269c0	194
ed077bb7 AV	195	if (cpu_is_at91sam9261())
ed077bb7 AV	196	clk_put(hclk);
68ba61b8 DB	197	clk_put(fclk);
68ba61b8 DB	198	clk_put(iclk);
ed077bb7	199	fclk = iclk = hclk = NULL;
39a269c0 AV	200
	201	dev_set_drvdata(&pdev->dev, NULL);
	202	return 0;
	203	}
	204
	205	/-------------------------------------------------------------------------/
	206
	207	static int __devinit
	208	ohci_at91_start (struct usb_hcd *hcd)
	209	{
0365ee0a	210	struct at91_usbh_data *board = hcd->self.controller->platform_data;
39a269c0 AV	211	struct ohci_hcd *ohci = hcd_to_ohci (hcd);
	212	int ret;
	213
	214	if ((ret = ohci_init(ohci)) < 0)
	215	return ret;
	216
cd22afda	217	ohci->num_ports = board->ports;
0365ee0a	218
39a269c0 AV	219	if ((ret = ohci_run(ohci)) < 0) {
	220	err("can't start %s", hcd->self.bus_name);
	221	ohci_stop(hcd);
	222	return ret;
	223	}
39a269c0 AV	224	return 0;
	225	}
	226
	227	/-------------------------------------------------------------------------/
	228
	229	static const struct hc_driver ohci_at91_hc_driver = {
	230	.description = hcd_name,
0365ee0a	231	.product_desc = "AT91 OHCI",
39a269c0 AV	232	.hcd_priv_size = sizeof(struct ohci_hcd),
	233
	234	/*
	235	* generic hardware linkage
	236	*/
	237	.irq = ohci_irq,
	238	.flags = HCD_USB11 \| HCD_MEMORY,
	239
	240	/*
	241	* basic lifecycle operations
	242	*/
	243	.start = ohci_at91_start,
	244	.stop = ohci_stop,
dd9048af	245	.shutdown = ohci_shutdown,
39a269c0 AV	246
	247	/*
	248	* managing i/o requests and associated device resources
	249	*/
	250	.urb_enqueue = ohci_urb_enqueue,
	251	.urb_dequeue = ohci_urb_dequeue,
	252	.endpoint_disable = ohci_endpoint_disable,
	253
	254	/*
	255	* scheduling support
	256	*/
	257	.get_frame_number = ohci_get_frame,
	258
	259	/*
	260	* root hub support
	261	*/
	262	.hub_status_data = ohci_hub_status_data,
	263	.hub_control = ohci_hub_control,
09ca8adb	264	.hub_irq_enable = ohci_rhsc_enable,
39a269c0	265	#ifdef CONFIG_PM
68ba61b8 DB	266	.bus_suspend = ohci_bus_suspend,
68ba61b8 DB	267	.bus_resume = ohci_bus_resume,
39a269c0 AV	268	#endif
	269	.start_port_reset = ohci_start_port_reset,
	270	};
	271
	272	/-------------------------------------------------------------------------/
	273
0365ee0a	274	static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
39a269c0	275	{
4bde4a4c DB	276	struct at91_usbh_data *pdata = pdev->dev.platform_data;
	277	int i;
	278
	279	if (pdata) {
	280	/* REVISIT make the driver support per-port power switching,
	281	* and also overcurrent detection. Here we assume the ports
	282	* are always powered while this driver is active, and use
	283	* active-low power switches.
	284	*/
	285	for (i = 0; i < pdata->ports; i++) {
	286	if (pdata->vbus_pin[i] <= 0)
	287	continue;
	288	gpio_request(pdata->vbus_pin[i], "ohci_vbus");
	289	gpio_direction_output(pdata->vbus_pin[i], 0);
	290	}
	291	}
	292
0365ee0a DB	293	device_init_wakeup(&pdev->dev, 1);
0365ee0a DB	294	return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev);
39a269c0 AV	295	}
39a269c0 AV	296
0365ee0a	297	static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
39a269c0	298	{
4bde4a4c DB	299	struct at91_usbh_data *pdata = pdev->dev.platform_data;
	300	int i;
	301
	302	if (pdata) {
	303	for (i = 0; i < pdata->ports; i++) {
	304	if (pdata->vbus_pin[i] <= 0)
	305	continue;
	306	gpio_direction_output(pdata->vbus_pin[i], 1);
	307	gpio_free(pdata->vbus_pin[i]);
	308	}
	309	}
	310
0365ee0a DB	311	device_init_wakeup(&pdev->dev, 0);
0365ee0a DB	312	return usb_hcd_at91_remove(platform_get_drvdata(pdev), pdev);
39a269c0 AV	313	}
	314
	315	#ifdef CONFIG_PM
39a269c0	316
68ba61b8	317	static int
0365ee0a	318	ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
68ba61b8	319	{
0365ee0a DB	320	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	321	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
	322
	323	if (device_may_wakeup(&pdev->dev))
	324	enable_irq_wake(hcd->irq);
0365ee0a DB	325
	326	/*
	327	* The integrated transceivers seem unable to notice disconnect,
	328	* reconnect, or wakeup without the 48 MHz clock active. so for
	329	* correctness, always discard connection state (using reset).
	330	*
	331	* REVISIT: some boards will be able to turn VBUS off...
	332	*/
	333	if (at91_suspend_entering_slow_clock()) {
	334	ohci_usb_reset (ohci);
ed077bb7	335	at91_stop_clock();
0365ee0a	336	}
39a269c0 AV	337
	338	return 0;
	339	}
	340
0365ee0a	341	static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
39a269c0	342	{
6dde896e MP	343	struct usb_hcd *hcd = platform_get_drvdata(pdev);
	344
	345	if (device_may_wakeup(&pdev->dev))
	346	disable_irq_wake(hcd->irq);
	347
ed077bb7 AV	348	if (!clocked)
ed077bb7 AV	349	at91_start_clock();
39a269c0	350
43bbb7e0	351	ohci_finish_controller_resume(hcd);
39a269c0 AV	352	return 0;
	353	}
	354	#else
	355	#define ohci_hcd_at91_drv_suspend NULL
	356	#define ohci_hcd_at91_drv_resume NULL
	357	#endif
	358
f4fce61d	359	MODULE_ALIAS("platform:at91_ohci");
68ba61b8	360
39a269c0 AV	361	static struct platform_driver ohci_hcd_at91_driver = {
	362	.probe = ohci_hcd_at91_drv_probe,
	363	.remove = ohci_hcd_at91_drv_remove,
64a21d02	364	.shutdown = usb_hcd_platform_shutdown,
39a269c0 AV	365	.suspend = ohci_hcd_at91_drv_suspend,
	366	.resume = ohci_hcd_at91_drv_resume,
	367	.driver = {
0365ee0a	368	.name = "at91_ohci",
39a269c0 AV	369	.owner = THIS_MODULE,
	370	},
	371	};