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/err.h>
18#include <linux/gpio.h>
19#include <linux/io.h>
20#include <linux/module.h>
21#include <linux/of_device.h>
22#include <linux/of_gpio.h>
23#include <linux/pm_runtime.h>
24#include <linux/slab.h>
25#include <linux/sysfs.h>
26#include "common.h"
27#include "rcar2.h"
28
29/*
30 *		image of renesas_usbhs
31 *
32 * ex) gadget case
33
34 * mod.c
35 * mod_gadget.c
36 * mod_host.c		pipe.c		fifo.c
37 *
38 *			+-------+	+-----------+
39 *			| pipe0 |------>| fifo pio  |
40 * +------------+	+-------+	+-----------+
41 * | mod_gadget |=====> | pipe1 |--+
42 * +------------+	+-------+  |	+-----------+
43 *			| pipe2 |  |  +-| fifo dma0 |
44 * +------------+	+-------+  |  |	+-----------+
45 * | mod_host   |	| pipe3 |<-|--+
46 * +------------+	+-------+  |	+-----------+
47 *			| ....  |  +--->| fifo dma1 |
48 *			| ....  |	+-----------+
49 */
50
51
52#define USBHSF_RUNTIME_PWCTRL	(1 << 0)
53
54/* status */
55#define usbhsc_flags_init(p)   do {(p)->flags = 0; } while (0)
56#define usbhsc_flags_set(p, b) ((p)->flags |=  (b))
57#define usbhsc_flags_clr(p, b) ((p)->flags &= ~(b))
58#define usbhsc_flags_has(p, b) ((p)->flags &   (b))
59
60/*
61 * platform call back
62 *
63 * renesas usb support platform callback function.
64 * Below macro call it.
65 * if platform doesn't have callback, it return 0 (no error)
66 */
67#define usbhs_platform_call(priv, func, args...)\
68	(!(priv) ? -ENODEV :			\
69	 !((priv)->pfunc.func) ? 0 :		\
70	 (priv)->pfunc.func(args))
71
72/*
73 *		common functions
74 */
75u16 usbhs_read(struct usbhs_priv *priv, u32 reg)
76{
77	return ioread16(priv->base + reg);
78}
79
80void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data)
81{
82	iowrite16(data, priv->base + reg);
83}
84
85void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data)
86{
87	u16 val = usbhs_read(priv, reg);
88
89	val &= ~mask;
90	val |= data & mask;
91
92	usbhs_write(priv, reg, val);
93}
94
95struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev)
96{
97	return dev_get_drvdata(&pdev->dev);
98}
99
100/*
101 *		syscfg functions
102 */
103static void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable)
104{
105	usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0);
106}
107
108void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable)
109{
110	u16 mask = DCFM | DRPD | DPRPU | HSE | USBE;
111	u16 val  = DCFM | DRPD | HSE | USBE;
112	int has_otg = usbhs_get_dparam(priv, has_otg);
113
114	if (has_otg)
115		usbhs_bset(priv, DVSTCTR, (EXTLP | PWEN), (EXTLP | PWEN));
116
117	/*
118	 * if enable
119	 *
120	 * - select Host mode
121	 * - D+ Line/D- Line Pull-down
122	 */
123	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
124}
125
126void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable)
127{
128	u16 mask = DCFM | DRPD | DPRPU | HSE | USBE;
129	u16 val  = DPRPU | HSE | USBE;
130
131	/*
132	 * if enable
133	 *
134	 * - select Function mode
135	 * - D+ Line Pull-up
136	 */
137	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
138}
139
140void usbhs_sys_function_pullup(struct usbhs_priv *priv, int enable)
141{
142	usbhs_bset(priv, SYSCFG, DPRPU, enable ? DPRPU : 0);
143}
144
145void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode)
146{
147	usbhs_write(priv, TESTMODE, mode);
148}
149
150/*
151 *		frame functions
152 */
153int usbhs_frame_get_num(struct usbhs_priv *priv)
154{
155	return usbhs_read(priv, FRMNUM) & FRNM_MASK;
156}
157
158/*
159 *		usb request functions
160 */
161void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
162{
163	u16 val;
164
165	val = usbhs_read(priv, USBREQ);
166	req->bRequest		= (val >> 8) & 0xFF;
167	req->bRequestType	= (val >> 0) & 0xFF;
168
169	req->wValue	= usbhs_read(priv, USBVAL);
170	req->wIndex	= usbhs_read(priv, USBINDX);
171	req->wLength	= usbhs_read(priv, USBLENG);
172}
173
174void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req)
175{
176	usbhs_write(priv, USBREQ,  (req->bRequest << 8) | req->bRequestType);
177	usbhs_write(priv, USBVAL,  req->wValue);
178	usbhs_write(priv, USBINDX, req->wIndex);
179	usbhs_write(priv, USBLENG, req->wLength);
180
181	usbhs_bset(priv, DCPCTR, SUREQ, SUREQ);
182}
183
184/*
185 *		bus/vbus functions
186 */
187void usbhs_bus_send_sof_enable(struct usbhs_priv *priv)
188{
189	u16 status = usbhs_read(priv, DVSTCTR) & (USBRST | UACT);
190
191	if (status != USBRST) {
192		struct device *dev = usbhs_priv_to_dev(priv);
193		dev_err(dev, "usbhs should be reset\n");
194	}
195
196	usbhs_bset(priv, DVSTCTR, (USBRST | UACT), UACT);
197}
198
199void usbhs_bus_send_reset(struct usbhs_priv *priv)
200{
201	usbhs_bset(priv, DVSTCTR, (USBRST | UACT), USBRST);
202}
203
204int usbhs_bus_get_speed(struct usbhs_priv *priv)
205{
206	u16 dvstctr = usbhs_read(priv, DVSTCTR);
207
208	switch (RHST & dvstctr) {
209	case RHST_LOW_SPEED:
210		return USB_SPEED_LOW;
211	case RHST_FULL_SPEED:
212		return USB_SPEED_FULL;
213	case RHST_HIGH_SPEED:
214		return USB_SPEED_HIGH;
215	}
216
217	return USB_SPEED_UNKNOWN;
218}
219
220int usbhs_vbus_ctrl(struct usbhs_priv *priv, int enable)
221{
222	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
223
224	return usbhs_platform_call(priv, set_vbus, pdev, enable);
225}
226
227static void usbhsc_bus_init(struct usbhs_priv *priv)
228{
229	usbhs_write(priv, DVSTCTR, 0);
230
231	usbhs_vbus_ctrl(priv, 0);
232}
233
234/*
235 *		device configuration
236 */
237int usbhs_set_device_config(struct usbhs_priv *priv, int devnum,
238			   u16 upphub, u16 hubport, u16 speed)
239{
240	struct device *dev = usbhs_priv_to_dev(priv);
241	u16 usbspd = 0;
242	u32 reg = DEVADD0 + (2 * devnum);
243
244	if (devnum > 10) {
245		dev_err(dev, "cannot set speed to unknown device %d\n", devnum);
246		return -EIO;
247	}
248
249	if (upphub > 0xA) {
250		dev_err(dev, "unsupported hub number %d\n", upphub);
251		return -EIO;
252	}
253
254	switch (speed) {
255	case USB_SPEED_LOW:
256		usbspd = USBSPD_SPEED_LOW;
257		break;
258	case USB_SPEED_FULL:
259		usbspd = USBSPD_SPEED_FULL;
260		break;
261	case USB_SPEED_HIGH:
262		usbspd = USBSPD_SPEED_HIGH;
263		break;
264	default:
265		dev_err(dev, "unsupported speed %d\n", speed);
266		return -EIO;
267	}
268
269	usbhs_write(priv, reg,	UPPHUB(upphub)	|
270				HUBPORT(hubport)|
271				USBSPD(usbspd));
272
273	return 0;
274}
275
276/*
277 *		local functions
278 */
279static void usbhsc_set_buswait(struct usbhs_priv *priv)
280{
281	int wait = usbhs_get_dparam(priv, buswait_bwait);
282
283	/* set bus wait if platform have */
284	if (wait)
285		usbhs_bset(priv, BUSWAIT, 0x000F, wait);
286}
287
288/*
289 *		platform default param
290 */
291
292/* commonly used on old SH-Mobile SoCs */
293static u32 usbhsc_default_pipe_type[] = {
294		USB_ENDPOINT_XFER_CONTROL,
295		USB_ENDPOINT_XFER_ISOC,
296		USB_ENDPOINT_XFER_ISOC,
297		USB_ENDPOINT_XFER_BULK,
298		USB_ENDPOINT_XFER_BULK,
299		USB_ENDPOINT_XFER_BULK,
300		USB_ENDPOINT_XFER_INT,
301		USB_ENDPOINT_XFER_INT,
302		USB_ENDPOINT_XFER_INT,
303		USB_ENDPOINT_XFER_INT,
304};
305
306/* commonly used on newer SH-Mobile and R-Car SoCs */
307static u32 usbhsc_new_pipe_type[] = {
308		USB_ENDPOINT_XFER_CONTROL,
309		USB_ENDPOINT_XFER_ISOC,
310		USB_ENDPOINT_XFER_ISOC,
311		USB_ENDPOINT_XFER_BULK,
312		USB_ENDPOINT_XFER_BULK,
313		USB_ENDPOINT_XFER_BULK,
314		USB_ENDPOINT_XFER_INT,
315		USB_ENDPOINT_XFER_INT,
316		USB_ENDPOINT_XFER_INT,
317		USB_ENDPOINT_XFER_BULK,
318		USB_ENDPOINT_XFER_BULK,
319		USB_ENDPOINT_XFER_BULK,
320		USB_ENDPOINT_XFER_BULK,
321		USB_ENDPOINT_XFER_BULK,
322		USB_ENDPOINT_XFER_BULK,
323		USB_ENDPOINT_XFER_BULK,
324};
325
326/*
327 *		power control
328 */
329static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
330{
331	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
332	struct device *dev = usbhs_priv_to_dev(priv);
333
334	if (enable) {
335		/* enable PM */
336		pm_runtime_get_sync(dev);
337
338		/* enable platform power */
339		usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable);
340
341		/* USB on */
342		usbhs_sys_clock_ctrl(priv, enable);
343	} else {
344		/* USB off */
345		usbhs_sys_clock_ctrl(priv, enable);
346
347		/* disable platform power */
348		usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable);
349
350		/* disable PM */
351		pm_runtime_put_sync(dev);
352	}
353}
354
355/*
356 *		hotplug
357 */
358static void usbhsc_hotplug(struct usbhs_priv *priv)
359{
360	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
361	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
362	int id;
363	int enable;
364	int ret;
365
366	/*
367	 * get vbus status from platform
368	 */
369	enable = usbhs_platform_call(priv, get_vbus, pdev);
370
371	/*
372	 * get id from platform
373	 */
374	id = usbhs_platform_call(priv, get_id, pdev);
375
376	if (enable && !mod) {
377		ret = usbhs_mod_change(priv, id);
378		if (ret < 0)
379			return;
380
381		dev_dbg(&pdev->dev, "%s enable\n", __func__);
382
383		/* power on */
384		if (usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
385			usbhsc_power_ctrl(priv, enable);
386
387		/* bus init */
388		usbhsc_set_buswait(priv);
389		usbhsc_bus_init(priv);
390
391		/* module start */
392		usbhs_mod_call(priv, start, priv);
393
394	} else if (!enable && mod) {
395		dev_dbg(&pdev->dev, "%s disable\n", __func__);
396
397		/* module stop */
398		usbhs_mod_call(priv, stop, priv);
399
400		/* bus init */
401		usbhsc_bus_init(priv);
402
403		/* power off */
404		if (usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
405			usbhsc_power_ctrl(priv, enable);
406
407		usbhs_mod_change(priv, -1);
408
409		/* reset phy for next connection */
410		usbhs_platform_call(priv, phy_reset, pdev);
411	}
412}
413
414/*
415 *		notify hotplug
416 */
417static void usbhsc_notify_hotplug(struct work_struct *work)
418{
419	struct usbhs_priv *priv = container_of(work,
420					       struct usbhs_priv,
421					       notify_hotplug_work.work);
422	usbhsc_hotplug(priv);
423}
424
425static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
426{
427	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
428	int delay = usbhs_get_dparam(priv, detection_delay);
429
430	/*
431	 * This functions will be called in interrupt.
432	 * To make sure safety context,
433	 * use workqueue for usbhs_notify_hotplug
434	 */
435	schedule_delayed_work(&priv->notify_hotplug_work,
436			      msecs_to_jiffies(delay));
437	return 0;
438}
439
440/*
441 *		platform functions
442 */
443static const struct of_device_id usbhs_of_match[] = {
444	{
445		.compatible = "renesas,usbhs-r8a7790",
446		.data = (void *)USBHS_TYPE_R8A7790,
447	},
448	{
449		.compatible = "renesas,usbhs-r8a7791",
450		.data = (void *)USBHS_TYPE_R8A7791,
451	},
452	{ },
453};
454MODULE_DEVICE_TABLE(of, usbhs_of_match);
455
456static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
457{
458	struct renesas_usbhs_platform_info *info;
459	struct renesas_usbhs_driver_param *dparam;
460	const struct of_device_id *of_id = of_match_device(usbhs_of_match, dev);
461	u32 tmp;
462	int gpio;
463
464	info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
465	if (!info)
466		return NULL;
467
468	dparam = &info->driver_param;
469	dparam->type = of_id ? (u32)of_id->data : 0;
470	if (!of_property_read_u32(dev->of_node, "renesas,buswait", &tmp))
471		dparam->buswait_bwait = tmp;
472	gpio = of_get_named_gpio_flags(dev->of_node, "renesas,enable-gpio", 0,
473				       NULL);
474	if (gpio > 0)
475		dparam->enable_gpio = gpio;
476
477	return info;
478}
479
480static int usbhs_probe(struct platform_device *pdev)
481{
482	struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev);
483	struct renesas_usbhs_driver_callback *dfunc;
484	struct usbhs_priv *priv;
485	struct resource *res, *irq_res;
486	int ret;
487
488	/* check device node */
489	if (pdev->dev.of_node)
490		info = pdev->dev.platform_data = usbhs_parse_dt(&pdev->dev);
491
492	/* check platform information */
493	if (!info) {
494		dev_err(&pdev->dev, "no platform information\n");
495		return -EINVAL;
496	}
497
498	/* platform data */
499	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
500	irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
501	if (!res || !irq_res) {
502		dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n");
503		return -ENODEV;
504	}
505
506	/* usb private data */
507	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
508	if (!priv) {
509		dev_err(&pdev->dev, "Could not allocate priv\n");
510		return -ENOMEM;
511	}
512
513	priv->base = devm_ioremap_resource(&pdev->dev, res);
514	if (IS_ERR(priv->base))
515		return PTR_ERR(priv->base);
516
517	/*
518	 * care platform info
519	 */
520
521	memcpy(&priv->dparam,
522	       &info->driver_param,
523	       sizeof(struct renesas_usbhs_driver_param));
524
525	switch (priv->dparam.type) {
526	case USBHS_TYPE_R8A7790:
527	case USBHS_TYPE_R8A7791:
528		priv->pfunc = usbhs_rcar2_ops;
529		if (!priv->dparam.pipe_type) {
530			priv->dparam.pipe_type = usbhsc_new_pipe_type;
531			priv->dparam.pipe_size =
532				ARRAY_SIZE(usbhsc_new_pipe_type);
533		}
534		break;
535	default:
536		if (!info->platform_callback.get_id) {
537			dev_err(&pdev->dev, "no platform callbacks");
538			return -EINVAL;
539		}
540		memcpy(&priv->pfunc,
541		       &info->platform_callback,
542		       sizeof(struct renesas_usbhs_platform_callback));
543		break;
544	}
545
546	/* set driver callback functions for platform */
547	dfunc			= &info->driver_callback;
548	dfunc->notify_hotplug	= usbhsc_drvcllbck_notify_hotplug;
549
550	/* set default param if platform doesn't have */
551	if (!priv->dparam.pipe_type) {
552		priv->dparam.pipe_type = usbhsc_default_pipe_type;
553		priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type);
554	}
555	if (!priv->dparam.pio_dma_border)
556		priv->dparam.pio_dma_border = 64; /* 64byte */
557
558	/* FIXME */
559	/* runtime power control ? */
560	if (priv->pfunc.get_vbus)
561		usbhsc_flags_set(priv, USBHSF_RUNTIME_PWCTRL);
562
563	/*
564	 * priv settings
565	 */
566	priv->irq	= irq_res->start;
567	if (irq_res->flags & IORESOURCE_IRQ_SHAREABLE)
568		priv->irqflags = IRQF_SHARED;
569	priv->pdev	= pdev;
570	INIT_DELAYED_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
571	spin_lock_init(usbhs_priv_to_lock(priv));
572
573	/* call pipe and module init */
574	ret = usbhs_pipe_probe(priv);
575	if (ret < 0)
576		return ret;
577
578	ret = usbhs_fifo_probe(priv);
579	if (ret < 0)
580		goto probe_end_pipe_exit;
581
582	ret = usbhs_mod_probe(priv);
583	if (ret < 0)
584		goto probe_end_fifo_exit;
585
586	/* dev_set_drvdata should be called after usbhs_mod_init */
587	platform_set_drvdata(pdev, priv);
588
589	/*
590	 * deviece reset here because
591	 * USB device might be used in boot loader.
592	 */
593	usbhs_sys_clock_ctrl(priv, 0);
594
595	/* check GPIO determining if USB function should be enabled */
596	if (priv->dparam.enable_gpio) {
597		gpio_request_one(priv->dparam.enable_gpio, GPIOF_IN, NULL);
598		ret = !gpio_get_value(priv->dparam.enable_gpio);
599		gpio_free(priv->dparam.enable_gpio);
600		if (ret) {
601			dev_warn(&pdev->dev,
602				 "USB function not selected (GPIO %d)\n",
603				 priv->dparam.enable_gpio);
604			ret = -ENOTSUPP;
605			goto probe_end_mod_exit;
606		}
607	}
608
609	/*
610	 * platform call
611	 *
612	 * USB phy setup might depend on CPU/Board.
613	 * If platform has its callback functions,
614	 * call it here.
615	 */
616	ret = usbhs_platform_call(priv, hardware_init, pdev);
617	if (ret < 0) {
618		dev_err(&pdev->dev, "platform prove failed.\n");
619		goto probe_end_mod_exit;
620	}
621
622	/* reset phy for connection */
623	usbhs_platform_call(priv, phy_reset, pdev);
624
625	/* power control */
626	pm_runtime_enable(&pdev->dev);
627	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) {
628		usbhsc_power_ctrl(priv, 1);
629		usbhs_mod_autonomy_mode(priv);
630	}
631
632	/*
633	 * manual call notify_hotplug for cold plug
634	 */
635	ret = usbhsc_drvcllbck_notify_hotplug(pdev);
636	if (ret < 0)
637		goto probe_end_call_remove;
638
639	dev_info(&pdev->dev, "probed\n");
640
641	return ret;
642
643probe_end_call_remove:
644	usbhs_platform_call(priv, hardware_exit, pdev);
645probe_end_mod_exit:
646	usbhs_mod_remove(priv);
647probe_end_fifo_exit:
648	usbhs_fifo_remove(priv);
649probe_end_pipe_exit:
650	usbhs_pipe_remove(priv);
651
652	dev_info(&pdev->dev, "probe failed\n");
653
654	return ret;
655}
656
657static int usbhs_remove(struct platform_device *pdev)
658{
659	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
660	struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev);
661	struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback;
662
663	dev_dbg(&pdev->dev, "usb remove\n");
664
665	dfunc->notify_hotplug = NULL;
666
667	/* power off */
668	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
669		usbhsc_power_ctrl(priv, 0);
670
671	pm_runtime_disable(&pdev->dev);
672
673	usbhs_platform_call(priv, hardware_exit, pdev);
674	usbhs_mod_remove(priv);
675	usbhs_fifo_remove(priv);
676	usbhs_pipe_remove(priv);
677
678	return 0;
679}
680
681static int usbhsc_suspend(struct device *dev)
682{
683	struct usbhs_priv *priv = dev_get_drvdata(dev);
684	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
685
686	if (mod) {
687		usbhs_mod_call(priv, stop, priv);
688		usbhs_mod_change(priv, -1);
689	}
690
691	if (mod || !usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
692		usbhsc_power_ctrl(priv, 0);
693
694	return 0;
695}
696
697static int usbhsc_resume(struct device *dev)
698{
699	struct usbhs_priv *priv = dev_get_drvdata(dev);
700	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
701
702	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
703		usbhsc_power_ctrl(priv, 1);
704
705	usbhs_platform_call(priv, phy_reset, pdev);
706
707	usbhsc_drvcllbck_notify_hotplug(pdev);
708
709	return 0;
710}
711
712static int usbhsc_runtime_nop(struct device *dev)
713{
714	/* Runtime PM callback shared between ->runtime_suspend()
715	 * and ->runtime_resume(). Simply returns success.
716	 *
717	 * This driver re-initializes all registers after
718	 * pm_runtime_get_sync() anyway so there is no need
719	 * to save and restore registers here.
720	 */
721	return 0;
722}
723
724static const struct dev_pm_ops usbhsc_pm_ops = {
725	.suspend		= usbhsc_suspend,
726	.resume			= usbhsc_resume,
727	.runtime_suspend	= usbhsc_runtime_nop,
728	.runtime_resume		= usbhsc_runtime_nop,
729};
730
731static struct platform_driver renesas_usbhs_driver = {
732	.driver		= {
733		.name	= "renesas_usbhs",
734		.pm	= &usbhsc_pm_ops,
735		.of_match_table = of_match_ptr(usbhs_of_match),
736	},
737	.probe		= usbhs_probe,
738	.remove		= usbhs_remove,
739};
740
741module_platform_driver(renesas_usbhs_driver);
742
743MODULE_LICENSE("GPL");
744MODULE_DESCRIPTION("Renesas USB driver");
745MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
746