[deliverable/linux.git] / drivers / usb / renesas_usbhs / common.c

/*
 * Renesas USB driver
 *
 * Copyright (C) 2011 Renesas Solutions Corp.
 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
#include <linux/io.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#include "./common.h"

/*
 * platform call back
 *
 * renesas usb support platform callback function.
 * Below macro call it.
 * if platform doesn't have callback, it return 0 (no error)
 */
#define usbhs_platform_call(priv, func, args...)\
	(!(priv) ? -ENODEV :			\
	 !((priv)->pfunc->func) ? 0 :		\
	 (priv)->pfunc->func(args))

/*
 *		common functions
 */
u16 usbhs_read(struct usbhs_priv *priv, u32 reg)
{
	return ioread16(priv->base + reg);
}

void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data)
{
	iowrite16(data, priv->base + reg);
}

void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data)
{
	u16 val = usbhs_read(priv, reg);

	val &= ~mask;
	val |= data & mask;

	usbhs_write(priv, reg, val);
}

struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev)
{
	return dev_get_drvdata(&pdev->dev);
}

/*
 *		syscfg functions
 */
void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable)
{
	usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0);
}

void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable)
{
	usbhs_bset(priv, SYSCFG, HSE, enable ? HSE : 0);
}

void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable)
{
	usbhs_bset(priv, SYSCFG, USBE, enable ? USBE : 0);
}

void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable)
{
	u16 mask = DCFM | DRPD | DPRPU;
	u16 val  = DCFM | DRPD;

	/*
	 * if enable
	 *
	 * - select Host mode
	 * - D+ Line/D- Line Pull-down
	 */
	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
}

void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable)
{
	u16 mask = DCFM | DRPD | DPRPU;
	u16 val  = DPRPU;

	/*
	 * if enable
	 *
	 * - select Function mode
	 * - D+ Line Pull-up
	 */
	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
}

/*
 *		frame functions
 */
int usbhs_frame_get_num(struct usbhs_priv *priv)
{
	return usbhs_read(priv, FRMNUM) & FRNM_MASK;
}

/*
 *		local functions
 */
static void usbhsc_bus_ctrl(struct usbhs_priv *priv, int enable)
{
	int wait = usbhs_get_dparam(priv, buswait_bwait);
	u16 data = 0;

	if (enable) {
		/* set bus wait if platform have */
		if (wait)
			usbhs_bset(priv, BUSWAIT, 0x000F, wait);
	}
	usbhs_write(priv, DVSTCTR, data);
}

/*
 *		platform default param
 */
static u32 usbhsc_default_pipe_type[] = {
		USB_ENDPOINT_XFER_CONTROL,
		USB_ENDPOINT_XFER_ISOC,
		USB_ENDPOINT_XFER_ISOC,
		USB_ENDPOINT_XFER_BULK,
		USB_ENDPOINT_XFER_BULK,
		USB_ENDPOINT_XFER_BULK,
		USB_ENDPOINT_XFER_INT,
		USB_ENDPOINT_XFER_INT,
		USB_ENDPOINT_XFER_INT,
		USB_ENDPOINT_XFER_INT,
};

/*
 *		power control
 */
static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
{
	struct device *dev = usbhs_priv_to_dev(priv);

	if (enable) {
		/* enable PM */
		pm_runtime_get_sync(dev);

		/* USB on */
		usbhs_sys_clock_ctrl(priv, enable);
		usbhsc_bus_ctrl(priv, enable);
	} else {
		/* USB off */
		usbhsc_bus_ctrl(priv, enable);
		usbhs_sys_clock_ctrl(priv, enable);

		/* disable PM */
		pm_runtime_put_sync(dev);
	}
}

/*
 *		notify hotplug
 */
static void usbhsc_notify_hotplug(struct work_struct *work)
{
	struct usbhs_priv *priv = container_of(work,
					       struct usbhs_priv,
					       notify_hotplug_work);
	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
	int id;
	int enable;
	int ret;

	/*
	 * get vbus status from platform
	 */
	enable = usbhs_platform_call(priv, get_vbus, pdev);

	/*
	 * get id from platform
	 */
	id = usbhs_platform_call(priv, get_id, pdev);

	if (enable && !mod) {
		ret = usbhs_mod_change(priv, id);
		if (ret < 0)
			return;

		dev_dbg(&pdev->dev, "%s enable\n", __func__);

		/* power on */
		usbhsc_power_ctrl(priv, enable);

		/* module start */
		usbhs_mod_call(priv, start, priv);

	} else if (!enable && mod) {
		dev_dbg(&pdev->dev, "%s disable\n", __func__);

		/* module stop */
		usbhs_mod_call(priv, stop, priv);

		/* power off */
		usbhsc_power_ctrl(priv, enable);

		usbhs_mod_change(priv, -1);

		/* reset phy for next connection */
		usbhs_platform_call(priv, phy_reset, pdev);
	}
}

static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
{
	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);

	/*
	 * This functions will be called in interrupt.
	 * To make sure safety context,
	 * use workqueue for usbhs_notify_hotplug
	 */
	schedule_work(&priv->notify_hotplug_work);
	return 0;
}

/*
 *		platform functions
 */
static int __devinit usbhs_probe(struct platform_device *pdev)
{
	struct renesas_usbhs_platform_info *info = pdev->dev.platform_data;
	struct renesas_usbhs_driver_callback *dfunc;
	struct usbhs_priv *priv;
	struct resource *res;
	unsigned int irq;
	int ret;

	/* check platform information */
	if (!info ||
	    !info->platform_callback.get_id ||
	    !info->platform_callback.get_vbus) {
		dev_err(&pdev->dev, "no platform information\n");
		return -EINVAL;
	}

	/* platform data */
	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	irq = platform_get_irq(pdev, 0);
	if (!res || (int)irq <= 0) {
		dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n");
		return -ENODEV;
	}

	/* usb private data */
	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	if (!priv) {
		dev_err(&pdev->dev, "Could not allocate priv\n");
		return -ENOMEM;
	}

	priv->base = ioremap_nocache(res->start, resource_size(res));
	if (!priv->base) {
		dev_err(&pdev->dev, "ioremap error.\n");
		ret = -ENOMEM;
		goto probe_end_kfree;
	}

	/*
	 * care platform info
	 */
	priv->pfunc	= &info->platform_callback;
	priv->dparam	= &info->driver_param;

	/* set driver callback functions for platform */
	dfunc			= &info->driver_callback;
	dfunc->notify_hotplug	= usbhsc_drvcllbck_notify_hotplug;

	/* set default param if platform doesn't have */
	if (!priv->dparam->pipe_type) {
		priv->dparam->pipe_type = usbhsc_default_pipe_type;
		priv->dparam->pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
	}

	/*
	 * priv settings
	 */
	priv->irq	= irq;
	priv->pdev	= pdev;
	INIT_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
	spin_lock_init(usbhs_priv_to_lock(priv));

	/* call pipe and module init */
	ret = usbhs_pipe_probe(priv);
	if (ret < 0)
		goto probe_end_mod_exit;

	ret = usbhs_mod_probe(priv);
	if (ret < 0)
		goto probe_end_iounmap;

	/* dev_set_drvdata should be called after usbhs_mod_init */
	dev_set_drvdata(&pdev->dev, priv);

	/*
	 * deviece reset here because
	 * USB device might be used in boot loader.
	 */
	usbhs_sys_clock_ctrl(priv, 0);

	/*
	 * platform call
	 *
	 * USB phy setup might depend on CPU/Board.
	 * If platform has its callback functions,
	 * call it here.
	 */
	ret = usbhs_platform_call(priv, hardware_init, pdev);
	if (ret < 0) {
		dev_err(&pdev->dev, "platform prove failed.\n");
		goto probe_end_pipe_exit;
	}

	/* reset phy for connection */
	usbhs_platform_call(priv, phy_reset, pdev);

	/*
	 * manual call notify_hotplug for cold plug
	 */
	pm_runtime_enable(&pdev->dev);
	ret = usbhsc_drvcllbck_notify_hotplug(pdev);
	if (ret < 0)
		goto probe_end_call_remove;

	dev_info(&pdev->dev, "probed\n");

	return ret;

probe_end_call_remove:
	usbhs_platform_call(priv, hardware_exit, pdev);
probe_end_pipe_exit:
	usbhs_pipe_remove(priv);
probe_end_mod_exit:
	usbhs_mod_remove(priv);
probe_end_iounmap:
	iounmap(priv->base);
probe_end_kfree:
	kfree(priv);

	dev_info(&pdev->dev, "probe failed\n");

	return ret;
}

static int __devexit usbhs_remove(struct platform_device *pdev)
{
	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
	struct renesas_usbhs_platform_info *info = pdev->dev.platform_data;
	struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback;

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

	dfunc->notify_hotplug = NULL;

	pm_runtime_disable(&pdev->dev);

	usbhsc_bus_ctrl(priv, 0);

	usbhs_platform_call(priv, hardware_exit, pdev);
	usbhs_pipe_remove(priv);
	usbhs_mod_remove(priv);
	iounmap(priv->base);
	kfree(priv);

	return 0;
}

static struct platform_driver renesas_usbhs_driver = {
	.driver		= {
		.name	= "renesas_usbhs",
	},
	.probe		= usbhs_probe,
	.remove		= __devexit_p(usbhs_remove),
};

static int __init usbhs_init(void)
{
	return platform_driver_register(&renesas_usbhs_driver);
}

static void __exit usbhs_exit(void)
{
	platform_driver_unregister(&renesas_usbhs_driver);
}

module_init(usbhs_init);
module_exit(usbhs_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Renesas USB driver");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
Commit	Line	Data
f1407d5c KM	1	/*
	2	* Renesas USB driver
	3	*
	4	* Copyright (C) 2011 Renesas Solutions Corp.
	5	* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
	6	*
	7	* This program is distributed in the hope that it will be useful,
	8	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	9	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	10	* GNU General Public License for more details.
	11	*
	12	* You should have received a copy of the GNU General Public License
	13	* along with this program; if not, write to the Free Software
	14	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	15	*
	16	*/
	17	#include <linux/io.h>
	18	#include <linux/module.h>
	19	#include <linux/pm_runtime.h>
	20	#include <linux/slab.h>
	21	#include <linux/sysfs.h>
	22	#include "./common.h"
	23
	24	/*
	25	* platform call back
	26	*
	27	* renesas usb support platform callback function.
	28	* Below macro call it.
	29	* if platform doesn't have callback, it return 0 (no error)
	30	*/
	31	#define usbhs_platform_call(priv, func, args...)\
	32	(!(priv) ? -ENODEV : \
	33	!((priv)->pfunc->func) ? 0 : \
	34	(priv)->pfunc->func(args))
	35
	36	/*
	37	* common functions
	38	*/
	39	u16 usbhs_read(struct usbhs_priv *priv, u32 reg)
	40	{
	41	return ioread16(priv->base + reg);
	42	}
	43
	44	void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data)
	45	{
	46	iowrite16(data, priv->base + reg);
	47	}
	48
	49	void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data)
	50	{
	51	u16 val = usbhs_read(priv, reg);
	52
	53	val &= ~mask;
	54	val \|= data & mask;
	55
	56	usbhs_write(priv, reg, val);
	57	}
	58
206dcc2c KM	59	struct usbhs_priv usbhs_pdev_to_priv(struct platform_device pdev)
	60	{
	61	return dev_get_drvdata(&pdev->dev);
	62	}
	63
f1407d5c KM	64	/*
	65	* syscfg functions
	66	*/
	67	void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable)
	68	{
	69	usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0);
	70	}
	71
	72	void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable)
	73	{
	74	usbhs_bset(priv, SYSCFG, HSE, enable ? HSE : 0);
	75	}
	76
	77	void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable)
	78	{
	79	usbhs_bset(priv, SYSCFG, USBE, enable ? USBE : 0);
	80	}
	81
	82	void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable)
	83	{
	84	u16 mask = DCFM \| DRPD \| DPRPU;
	85	u16 val = DCFM \| DRPD;
	86
	87	/*
	88	* if enable
	89	*
	90	* - select Host mode
	91	* - D+ Line/D- Line Pull-down
	92	*/
	93	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
	94	}
	95
	96	void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable)
	97	{
	98	u16 mask = DCFM \| DRPD \| DPRPU;
	99	u16 val = DPRPU;
	100
	101	/*
	102	* if enable
	103	*
	104	* - select Function mode
	105	* - D+ Line Pull-up
	106	*/
	107	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
	108	}
	109
	110	/*
	111	* frame functions
	112	*/
	113	int usbhs_frame_get_num(struct usbhs_priv *priv)
	114	{
	115	return usbhs_read(priv, FRMNUM) & FRNM_MASK;
	116	}
	117
	118	/*
	119	* local functions
	120	*/
f1407d5c KM	121	static void usbhsc_bus_ctrl(struct usbhs_priv *priv, int enable)
	122	{
	123	int wait = usbhs_get_dparam(priv, buswait_bwait);
	124	u16 data = 0;
	125
	126	if (enable) {
	127	/* set bus wait if platform have */
	128	if (wait)
	129	usbhs_bset(priv, BUSWAIT, 0x000F, wait);
	130	}
	131	usbhs_write(priv, DVSTCTR, data);
	132	}
	133
	134	/*
	135	* platform default param
	136	*/
	137	static u32 usbhsc_default_pipe_type[] = {
	138	USB_ENDPOINT_XFER_CONTROL,
	139	USB_ENDPOINT_XFER_ISOC,
	140	USB_ENDPOINT_XFER_ISOC,
	141	USB_ENDPOINT_XFER_BULK,
	142	USB_ENDPOINT_XFER_BULK,
	143	USB_ENDPOINT_XFER_BULK,
	144	USB_ENDPOINT_XFER_INT,
	145	USB_ENDPOINT_XFER_INT,
	146	USB_ENDPOINT_XFER_INT,
	147	USB_ENDPOINT_XFER_INT,
	148	};
	149
	150	/*
6e267da8 KM	151	* power control
	152	*/
	153	static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
	154	{
	155	struct device *dev = usbhs_priv_to_dev(priv);
	156
	157	if (enable) {
	158	/* enable PM */
	159	pm_runtime_get_sync(dev);
	160
	161	/* USB on */
	162	usbhs_sys_clock_ctrl(priv, enable);
	163	usbhsc_bus_ctrl(priv, enable);
	164	} else {
	165	/* USB off */
	166	usbhsc_bus_ctrl(priv, enable);
	167	usbhs_sys_clock_ctrl(priv, enable);
	168
	169	/* disable PM */
	170	pm_runtime_put_sync(dev);
	171	}
	172	}
	173
	174	/*
	175	* notify hotplug
f1407d5c KM	176	*/
	177	static void usbhsc_notify_hotplug(struct work_struct *work)
	178	{
	179	struct usbhs_priv *priv = container_of(work,
	180	struct usbhs_priv,
	181	notify_hotplug_work);
	182	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
	183	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
	184	int id;
	185	int enable;
	186	int ret;
	187
	188	/*
	189	* get vbus status from platform
	190	*/
	191	enable = usbhs_platform_call(priv, get_vbus, pdev);
	192
	193	/*
	194	* get id from platform
	195	*/
	196	id = usbhs_platform_call(priv, get_id, pdev);
	197
	198	if (enable && !mod) {
	199	ret = usbhs_mod_change(priv, id);
	200	if (ret < 0)
	201	return;
	202
	203	dev_dbg(&pdev->dev, "%s enable\n", __func__);
	204
6e267da8 KM	205	/* power on */
6e267da8 KM	206	usbhsc_power_ctrl(priv, enable);
f1407d5c KM	207
	208	/* module start */
	209	usbhs_mod_call(priv, start, priv);
	210
	211	} else if (!enable && mod) {
	212	dev_dbg(&pdev->dev, "%s disable\n", __func__);
	213
	214	/* module stop */
	215	usbhs_mod_call(priv, stop, priv);
	216
6e267da8 KM	217	/* power off */
6e267da8 KM	218	usbhsc_power_ctrl(priv, enable);
f1407d5c KM	219
	220	usbhs_mod_change(priv, -1);
	221
	222	/* reset phy for next connection */
	223	usbhs_platform_call(priv, phy_reset, pdev);
	224	}
	225	}
	226
	227	static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
	228	{
206dcc2c	229	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
f1407d5c KM	230
	231	/*
	232	* This functions will be called in interrupt.
	233	* To make sure safety context,
	234	* use workqueue for usbhs_notify_hotplug
	235	*/
	236	schedule_work(&priv->notify_hotplug_work);
	237	return 0;
	238	}
	239
	240	/*
	241	* platform functions
	242	*/
	243	static int __devinit usbhs_probe(struct platform_device *pdev)
	244	{
	245	struct renesas_usbhs_platform_info *info = pdev->dev.platform_data;
	246	struct renesas_usbhs_driver_callback *dfunc;
	247	struct usbhs_priv *priv;
	248	struct resource *res;
	249	unsigned int irq;
	250	int ret;
	251
	252	/* check platform information */
	253	if (!info \|\|
	254	!info->platform_callback.get_id \|\|
	255	!info->platform_callback.get_vbus) {
	256	dev_err(&pdev->dev, "no platform information\n");
	257	return -EINVAL;
	258	}
	259
	260	/* platform data */
	261	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	262	irq = platform_get_irq(pdev, 0);
	263	if (!res \|\| (int)irq <= 0) {
	264	dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n");
	265	return -ENODEV;
	266	}
	267
	268	/* usb private data */
	269	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	270	if (!priv) {
	271	dev_err(&pdev->dev, "Could not allocate priv\n");
	272	return -ENOMEM;
	273	}
	274
	275	priv->base = ioremap_nocache(res->start, resource_size(res));
	276	if (!priv->base) {
	277	dev_err(&pdev->dev, "ioremap error.\n");
	278	ret = -ENOMEM;
	279	goto probe_end_kfree;
	280	}
	281
	282	/*
	283	* care platform info
	284	*/
	285	priv->pfunc = &info->platform_callback;
	286	priv->dparam = &info->driver_param;
	287
	288	/* set driver callback functions for platform */
	289	dfunc = &info->driver_callback;
	290	dfunc->notify_hotplug = usbhsc_drvcllbck_notify_hotplug;
	291
	292	/* set default param if platform doesn't have */
	293	if (!priv->dparam->pipe_type) {
294	priv->dparam->pipe_type = usbhsc_default_pipe_type;
295	priv->dparam->pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
296	}
297
298	/*
299	* priv settings
300	*/
301	priv->irq = irq;
302	priv->pdev = pdev;
303	INIT_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
304	spin_lock_init(usbhs_priv_to_lock(priv));
305
306	/* call pipe and module init */
307	ret = usbhs_pipe_probe(priv);
308	if (ret < 0)
309	goto probe_end_mod_exit;
310
311	ret = usbhs_mod_probe(priv);
312	if (ret < 0)
313	goto probe_end_iounmap;
314
315	/* dev_set_drvdata should be called after usbhs_mod_init */
316	dev_set_drvdata(&pdev->dev, priv);
317
318	/*
319	* deviece reset here because
320	* USB device might be used in boot loader.
321	*/
322	usbhs_sys_clock_ctrl(priv, 0);
323
324	/*
325	* platform call
326	*
327	* USB phy setup might depend on CPU/Board.
328	* If platform has its callback functions,
329	* call it here.
330	*/
331	ret = usbhs_platform_call(priv, hardware_init, pdev);
332	if (ret < 0) {
333	dev_err(&pdev->dev, "platform prove failed.\n");
334	goto probe_end_pipe_exit;
335	}
336
337	/* reset phy for connection */
338	usbhs_platform_call(priv, phy_reset, pdev);
339
340	/*
341	* manual call notify_hotplug for cold plug
342	*/
343	pm_runtime_enable(&pdev->dev);
344	ret = usbhsc_drvcllbck_notify_hotplug(pdev);
345	if (ret < 0)
346	goto probe_end_call_remove;
347
348	dev_info(&pdev->dev, "probed\n");
349
350	return ret;
351
352	probe_end_call_remove:
353	usbhs_platform_call(priv, hardware_exit, pdev);
354	probe_end_pipe_exit:
355	usbhs_pipe_remove(priv);
356	probe_end_mod_exit:
357	usbhs_mod_remove(priv);
358	probe_end_iounmap:
359	iounmap(priv->base);
360	probe_end_kfree:
361	kfree(priv);
362
363	dev_info(&pdev->dev, "probe failed\n");
364
365	return ret;
366	}
367
368	static int __devexit usbhs_remove(struct platform_device *pdev)
369	{
206dcc2c	370	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
af32fe51 KM	371	struct renesas_usbhs_platform_info *info = pdev->dev.platform_data;
af32fe51 KM	372	struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback;
f1407d5c KM	373
	374	dev_dbg(&pdev->dev, "usb remove\n");
	375
af32fe51 KM	376	dfunc->notify_hotplug = NULL;
af32fe51 KM	377
f1407d5c KM	378	pm_runtime_disable(&pdev->dev);
	379
	380	usbhsc_bus_ctrl(priv, 0);
	381
	382	usbhs_platform_call(priv, hardware_exit, pdev);
	383	usbhs_pipe_remove(priv);
	384	usbhs_mod_remove(priv);
	385	iounmap(priv->base);
	386	kfree(priv);
	387
	388	return 0;
	389	}
	390
	391	static struct platform_driver renesas_usbhs_driver = {
	392	.driver = {
	393	.name = "renesas_usbhs",
	394	},
	395	.probe = usbhs_probe,
	396	.remove = __devexit_p(usbhs_remove),
	397	};
	398
	399	static int __init usbhs_init(void)
	400	{
	401	return platform_driver_register(&renesas_usbhs_driver);
	402	}
	403
	404	static void __exit usbhs_exit(void)
	405	{
	406	platform_driver_unregister(&renesas_usbhs_driver);
	407	}
	408
	409	module_init(usbhs_init);
	410	module_exit(usbhs_exit);
	411
	412	MODULE_LICENSE("GPL");
	413	MODULE_DESCRIPTION("Renesas USB driver");
	414	MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");