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[mirror_ubuntu-bionic-kernel.git] / drivers / usb / dwc3 / dwc3-omap.c
1 /**
2 * dwc3-omap.c - OMAP Specific Glue layer
3 *
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
5 *
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
8 *
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 of
11 * the License as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19 #include <linux/module.h>
20 #include <linux/kernel.h>
21 #include <linux/slab.h>
22 #include <linux/irq.h>
23 #include <linux/interrupt.h>
24 #include <linux/platform_device.h>
25 #include <linux/platform_data/dwc3-omap.h>
26 #include <linux/pm_runtime.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/ioport.h>
29 #include <linux/io.h>
30 #include <linux/of.h>
31 #include <linux/of_platform.h>
32 #include <linux/extcon.h>
33 #include <linux/regulator/consumer.h>
34
35 #include <linux/usb/otg.h>
36
37 /*
38 * All these registers belong to OMAP's Wrapper around the
39 * DesignWare USB3 Core.
40 */
41
42 #define USBOTGSS_REVISION 0x0000
43 #define USBOTGSS_SYSCONFIG 0x0010
44 #define USBOTGSS_IRQ_EOI 0x0020
45 #define USBOTGSS_EOI_OFFSET 0x0008
46 #define USBOTGSS_IRQSTATUS_RAW_0 0x0024
47 #define USBOTGSS_IRQSTATUS_0 0x0028
48 #define USBOTGSS_IRQENABLE_SET_0 0x002c
49 #define USBOTGSS_IRQENABLE_CLR_0 0x0030
50 #define USBOTGSS_IRQ0_OFFSET 0x0004
51 #define USBOTGSS_IRQSTATUS_RAW_1 0x0030
52 #define USBOTGSS_IRQSTATUS_1 0x0034
53 #define USBOTGSS_IRQENABLE_SET_1 0x0038
54 #define USBOTGSS_IRQENABLE_CLR_1 0x003c
55 #define USBOTGSS_IRQSTATUS_RAW_2 0x0040
56 #define USBOTGSS_IRQSTATUS_2 0x0044
57 #define USBOTGSS_IRQENABLE_SET_2 0x0048
58 #define USBOTGSS_IRQENABLE_CLR_2 0x004c
59 #define USBOTGSS_IRQSTATUS_RAW_3 0x0050
60 #define USBOTGSS_IRQSTATUS_3 0x0054
61 #define USBOTGSS_IRQENABLE_SET_3 0x0058
62 #define USBOTGSS_IRQENABLE_CLR_3 0x005c
63 #define USBOTGSS_IRQSTATUS_EOI_MISC 0x0030
64 #define USBOTGSS_IRQSTATUS_RAW_MISC 0x0034
65 #define USBOTGSS_IRQSTATUS_MISC 0x0038
66 #define USBOTGSS_IRQENABLE_SET_MISC 0x003c
67 #define USBOTGSS_IRQENABLE_CLR_MISC 0x0040
68 #define USBOTGSS_IRQMISC_OFFSET 0x03fc
69 #define USBOTGSS_UTMI_OTG_STATUS 0x0080
70 #define USBOTGSS_UTMI_OTG_CTRL 0x0084
71 #define USBOTGSS_UTMI_OTG_OFFSET 0x0480
72 #define USBOTGSS_TXFIFO_DEPTH 0x0508
73 #define USBOTGSS_RXFIFO_DEPTH 0x050c
74 #define USBOTGSS_MMRAM_OFFSET 0x0100
75 #define USBOTGSS_FLADJ 0x0104
76 #define USBOTGSS_DEBUG_CFG 0x0108
77 #define USBOTGSS_DEBUG_DATA 0x010c
78 #define USBOTGSS_DEV_EBC_EN 0x0110
79 #define USBOTGSS_DEBUG_OFFSET 0x0600
80
81 /* SYSCONFIG REGISTER */
82 #define USBOTGSS_SYSCONFIG_DMADISABLE (1 << 16)
83
84 /* IRQ_EOI REGISTER */
85 #define USBOTGSS_IRQ_EOI_LINE_NUMBER (1 << 0)
86
87 /* IRQS0 BITS */
88 #define USBOTGSS_IRQO_COREIRQ_ST (1 << 0)
89
90 /* IRQMISC BITS */
91 #define USBOTGSS_IRQMISC_DMADISABLECLR (1 << 17)
92 #define USBOTGSS_IRQMISC_OEVT (1 << 16)
93 #define USBOTGSS_IRQMISC_DRVVBUS_RISE (1 << 13)
94 #define USBOTGSS_IRQMISC_CHRGVBUS_RISE (1 << 12)
95 #define USBOTGSS_IRQMISC_DISCHRGVBUS_RISE (1 << 11)
96 #define USBOTGSS_IRQMISC_IDPULLUP_RISE (1 << 8)
97 #define USBOTGSS_IRQMISC_DRVVBUS_FALL (1 << 5)
98 #define USBOTGSS_IRQMISC_CHRGVBUS_FALL (1 << 4)
99 #define USBOTGSS_IRQMISC_DISCHRGVBUS_FALL (1 << 3)
100 #define USBOTGSS_IRQMISC_IDPULLUP_FALL (1 << 0)
101
102 /* UTMI_OTG_STATUS REGISTER */
103 #define USBOTGSS_UTMI_OTG_STATUS_DRVVBUS (1 << 5)
104 #define USBOTGSS_UTMI_OTG_STATUS_CHRGVBUS (1 << 4)
105 #define USBOTGSS_UTMI_OTG_STATUS_DISCHRGVBUS (1 << 3)
106 #define USBOTGSS_UTMI_OTG_STATUS_IDPULLUP (1 << 0)
107
108 /* UTMI_OTG_CTRL REGISTER */
109 #define USBOTGSS_UTMI_OTG_CTRL_SW_MODE (1 << 31)
110 #define USBOTGSS_UTMI_OTG_CTRL_POWERPRESENT (1 << 9)
111 #define USBOTGSS_UTMI_OTG_CTRL_TXBITSTUFFENABLE (1 << 8)
112 #define USBOTGSS_UTMI_OTG_CTRL_IDDIG (1 << 4)
113 #define USBOTGSS_UTMI_OTG_CTRL_SESSEND (1 << 3)
114 #define USBOTGSS_UTMI_OTG_CTRL_SESSVALID (1 << 2)
115 #define USBOTGSS_UTMI_OTG_CTRL_VBUSVALID (1 << 1)
116
117 struct dwc3_omap {
118 struct device *dev;
119
120 int irq;
121 void __iomem *base;
122
123 u32 utmi_otg_ctrl;
124 u32 utmi_otg_offset;
125 u32 irqmisc_offset;
126 u32 irq_eoi_offset;
127 u32 debug_offset;
128 u32 irq0_offset;
129
130 struct extcon_dev *edev;
131 struct notifier_block vbus_nb;
132 struct notifier_block id_nb;
133
134 struct regulator *vbus_reg;
135 };
136
137 enum omap_dwc3_vbus_id_status {
138 OMAP_DWC3_ID_FLOAT,
139 OMAP_DWC3_ID_GROUND,
140 OMAP_DWC3_VBUS_OFF,
141 OMAP_DWC3_VBUS_VALID,
142 };
143
144 static inline u32 dwc3_omap_readl(void __iomem *base, u32 offset)
145 {
146 return readl(base + offset);
147 }
148
149 static inline void dwc3_omap_writel(void __iomem *base, u32 offset, u32 value)
150 {
151 writel(value, base + offset);
152 }
153
154 static u32 dwc3_omap_read_utmi_ctrl(struct dwc3_omap *omap)
155 {
156 return dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_CTRL +
157 omap->utmi_otg_offset);
158 }
159
160 static void dwc3_omap_write_utmi_ctrl(struct dwc3_omap *omap, u32 value)
161 {
162 dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_CTRL +
163 omap->utmi_otg_offset, value);
164
165 }
166
167 static u32 dwc3_omap_read_irq0_status(struct dwc3_omap *omap)
168 {
169 return dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_RAW_0 -
170 omap->irq0_offset);
171 }
172
173 static void dwc3_omap_write_irq0_status(struct dwc3_omap *omap, u32 value)
174 {
175 dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_0 -
176 omap->irq0_offset, value);
177
178 }
179
180 static u32 dwc3_omap_read_irqmisc_status(struct dwc3_omap *omap)
181 {
182 return dwc3_omap_readl(omap->base, USBOTGSS_IRQSTATUS_RAW_MISC +
183 omap->irqmisc_offset);
184 }
185
186 static void dwc3_omap_write_irqmisc_status(struct dwc3_omap *omap, u32 value)
187 {
188 dwc3_omap_writel(omap->base, USBOTGSS_IRQSTATUS_MISC +
189 omap->irqmisc_offset, value);
190
191 }
192
193 static void dwc3_omap_write_irqmisc_set(struct dwc3_omap *omap, u32 value)
194 {
195 dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_MISC +
196 omap->irqmisc_offset, value);
197
198 }
199
200 static void dwc3_omap_write_irq0_set(struct dwc3_omap *omap, u32 value)
201 {
202 dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0 -
203 omap->irq0_offset, value);
204 }
205
206 static void dwc3_omap_write_irqmisc_clr(struct dwc3_omap *omap, u32 value)
207 {
208 dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_MISC +
209 omap->irqmisc_offset, value);
210 }
211
212 static void dwc3_omap_write_irq0_clr(struct dwc3_omap *omap, u32 value)
213 {
214 dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_CLR_0 -
215 omap->irq0_offset, value);
216 }
217
218 static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
219 enum omap_dwc3_vbus_id_status status)
220 {
221 int ret;
222 u32 val;
223
224 switch (status) {
225 case OMAP_DWC3_ID_GROUND:
226 if (omap->vbus_reg) {
227 ret = regulator_enable(omap->vbus_reg);
228 if (ret) {
229 dev_err(omap->dev, "regulator enable failed\n");
230 return;
231 }
232 }
233
234 val = dwc3_omap_read_utmi_ctrl(omap);
235 val &= ~USBOTGSS_UTMI_OTG_CTRL_IDDIG;
236 dwc3_omap_write_utmi_ctrl(omap, val);
237 break;
238
239 case OMAP_DWC3_VBUS_VALID:
240 val = dwc3_omap_read_utmi_ctrl(omap);
241 val &= ~USBOTGSS_UTMI_OTG_CTRL_SESSEND;
242 val |= USBOTGSS_UTMI_OTG_CTRL_VBUSVALID
243 | USBOTGSS_UTMI_OTG_CTRL_SESSVALID;
244 dwc3_omap_write_utmi_ctrl(omap, val);
245 break;
246
247 case OMAP_DWC3_ID_FLOAT:
248 if (omap->vbus_reg)
249 regulator_disable(omap->vbus_reg);
250 val = dwc3_omap_read_utmi_ctrl(omap);
251 val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG;
252 dwc3_omap_write_utmi_ctrl(omap, val);
253
254 case OMAP_DWC3_VBUS_OFF:
255 val = dwc3_omap_read_utmi_ctrl(omap);
256 val &= ~(USBOTGSS_UTMI_OTG_CTRL_SESSVALID
257 | USBOTGSS_UTMI_OTG_CTRL_VBUSVALID);
258 val |= USBOTGSS_UTMI_OTG_CTRL_SESSEND;
259 dwc3_omap_write_utmi_ctrl(omap, val);
260 break;
261
262 default:
263 dev_WARN(omap->dev, "invalid state\n");
264 }
265 }
266
267 static void dwc3_omap_enable_irqs(struct dwc3_omap *omap);
268 static void dwc3_omap_disable_irqs(struct dwc3_omap *omap);
269
270 static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap)
271 {
272 struct dwc3_omap *omap = _omap;
273
274 if (dwc3_omap_read_irqmisc_status(omap) ||
275 dwc3_omap_read_irq0_status(omap)) {
276 /* mask irqs */
277 dwc3_omap_disable_irqs(omap);
278 return IRQ_WAKE_THREAD;
279 }
280
281 return IRQ_NONE;
282 }
283
284 static irqreturn_t dwc3_omap_interrupt_thread(int irq, void *_omap)
285 {
286 struct dwc3_omap *omap = _omap;
287 u32 reg;
288
289 /* clear irq status flags */
290 reg = dwc3_omap_read_irqmisc_status(omap);
291 dwc3_omap_write_irqmisc_status(omap, reg);
292
293 reg = dwc3_omap_read_irq0_status(omap);
294 dwc3_omap_write_irq0_status(omap, reg);
295
296 /* unmask irqs */
297 dwc3_omap_enable_irqs(omap);
298
299 return IRQ_HANDLED;
300 }
301
302 static void dwc3_omap_enable_irqs(struct dwc3_omap *omap)
303 {
304 u32 reg;
305
306 /* enable all IRQs */
307 reg = USBOTGSS_IRQO_COREIRQ_ST;
308 dwc3_omap_write_irq0_set(omap, reg);
309
310 reg = (USBOTGSS_IRQMISC_OEVT |
311 USBOTGSS_IRQMISC_DRVVBUS_RISE |
312 USBOTGSS_IRQMISC_CHRGVBUS_RISE |
313 USBOTGSS_IRQMISC_DISCHRGVBUS_RISE |
314 USBOTGSS_IRQMISC_IDPULLUP_RISE |
315 USBOTGSS_IRQMISC_DRVVBUS_FALL |
316 USBOTGSS_IRQMISC_CHRGVBUS_FALL |
317 USBOTGSS_IRQMISC_DISCHRGVBUS_FALL |
318 USBOTGSS_IRQMISC_IDPULLUP_FALL);
319
320 dwc3_omap_write_irqmisc_set(omap, reg);
321 }
322
323 static void dwc3_omap_disable_irqs(struct dwc3_omap *omap)
324 {
325 u32 reg;
326
327 /* disable all IRQs */
328 reg = USBOTGSS_IRQO_COREIRQ_ST;
329 dwc3_omap_write_irq0_clr(omap, reg);
330
331 reg = (USBOTGSS_IRQMISC_OEVT |
332 USBOTGSS_IRQMISC_DRVVBUS_RISE |
333 USBOTGSS_IRQMISC_CHRGVBUS_RISE |
334 USBOTGSS_IRQMISC_DISCHRGVBUS_RISE |
335 USBOTGSS_IRQMISC_IDPULLUP_RISE |
336 USBOTGSS_IRQMISC_DRVVBUS_FALL |
337 USBOTGSS_IRQMISC_CHRGVBUS_FALL |
338 USBOTGSS_IRQMISC_DISCHRGVBUS_FALL |
339 USBOTGSS_IRQMISC_IDPULLUP_FALL);
340
341 dwc3_omap_write_irqmisc_clr(omap, reg);
342 }
343
344 static int dwc3_omap_id_notifier(struct notifier_block *nb,
345 unsigned long event, void *ptr)
346 {
347 struct dwc3_omap *omap = container_of(nb, struct dwc3_omap, id_nb);
348
349 if (event)
350 dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
351 else
352 dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);
353
354 return NOTIFY_DONE;
355 }
356
357 static int dwc3_omap_vbus_notifier(struct notifier_block *nb,
358 unsigned long event, void *ptr)
359 {
360 struct dwc3_omap *omap = container_of(nb, struct dwc3_omap, vbus_nb);
361
362 if (event)
363 dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
364 else
365 dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);
366
367 return NOTIFY_DONE;
368 }
369
370 static void dwc3_omap_map_offset(struct dwc3_omap *omap)
371 {
372 struct device_node *node = omap->dev->of_node;
373
374 /*
375 * Differentiate between OMAP5 and AM437x.
376 *
377 * For OMAP5(ES2.0) and AM437x wrapper revision is same, even
378 * though there are changes in wrapper register offsets.
379 *
380 * Using dt compatible to differentiate AM437x.
381 */
382 if (of_device_is_compatible(node, "ti,am437x-dwc3")) {
383 omap->irq_eoi_offset = USBOTGSS_EOI_OFFSET;
384 omap->irq0_offset = USBOTGSS_IRQ0_OFFSET;
385 omap->irqmisc_offset = USBOTGSS_IRQMISC_OFFSET;
386 omap->utmi_otg_offset = USBOTGSS_UTMI_OTG_OFFSET;
387 omap->debug_offset = USBOTGSS_DEBUG_OFFSET;
388 }
389 }
390
391 static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)
392 {
393 u32 reg;
394 struct device_node *node = omap->dev->of_node;
395 int utmi_mode = 0;
396
397 reg = dwc3_omap_read_utmi_ctrl(omap);
398
399 of_property_read_u32(node, "utmi-mode", &utmi_mode);
400
401 switch (utmi_mode) {
402 case DWC3_OMAP_UTMI_MODE_SW:
403 reg |= USBOTGSS_UTMI_OTG_CTRL_SW_MODE;
404 break;
405 case DWC3_OMAP_UTMI_MODE_HW:
406 reg &= ~USBOTGSS_UTMI_OTG_CTRL_SW_MODE;
407 break;
408 default:
409 dev_WARN(omap->dev, "UNKNOWN utmi mode %d\n", utmi_mode);
410 }
411
412 dwc3_omap_write_utmi_ctrl(omap, reg);
413 }
414
415 static int dwc3_omap_extcon_register(struct dwc3_omap *omap)
416 {
417 int ret;
418 struct device_node *node = omap->dev->of_node;
419 struct extcon_dev *edev;
420
421 if (of_property_read_bool(node, "extcon")) {
422 edev = extcon_get_edev_by_phandle(omap->dev, 0);
423 if (IS_ERR(edev)) {
424 dev_vdbg(omap->dev, "couldn't get extcon device\n");
425 return -EPROBE_DEFER;
426 }
427
428 omap->vbus_nb.notifier_call = dwc3_omap_vbus_notifier;
429 ret = devm_extcon_register_notifier(omap->dev, edev,
430 EXTCON_USB, &omap->vbus_nb);
431 if (ret < 0)
432 dev_vdbg(omap->dev, "failed to register notifier for USB\n");
433
434 omap->id_nb.notifier_call = dwc3_omap_id_notifier;
435 ret = devm_extcon_register_notifier(omap->dev, edev,
436 EXTCON_USB_HOST, &omap->id_nb);
437 if (ret < 0)
438 dev_vdbg(omap->dev, "failed to register notifier for USB-HOST\n");
439
440 if (extcon_get_state(edev, EXTCON_USB) == true)
441 dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
442 if (extcon_get_state(edev, EXTCON_USB_HOST) == true)
443 dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
444
445 omap->edev = edev;
446 }
447
448 return 0;
449 }
450
451 static int dwc3_omap_probe(struct platform_device *pdev)
452 {
453 struct device_node *node = pdev->dev.of_node;
454
455 struct dwc3_omap *omap;
456 struct resource *res;
457 struct device *dev = &pdev->dev;
458 struct regulator *vbus_reg = NULL;
459
460 int ret;
461 int irq;
462
463 u32 reg;
464
465 void __iomem *base;
466
467 if (!node) {
468 dev_err(dev, "device node not found\n");
469 return -EINVAL;
470 }
471
472 omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
473 if (!omap)
474 return -ENOMEM;
475
476 platform_set_drvdata(pdev, omap);
477
478 irq = platform_get_irq(pdev, 0);
479 if (irq < 0) {
480 dev_err(dev, "missing IRQ resource\n");
481 return -EINVAL;
482 }
483
484 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
485 base = devm_ioremap_resource(dev, res);
486 if (IS_ERR(base))
487 return PTR_ERR(base);
488
489 if (of_property_read_bool(node, "vbus-supply")) {
490 vbus_reg = devm_regulator_get(dev, "vbus");
491 if (IS_ERR(vbus_reg)) {
492 dev_err(dev, "vbus init failed\n");
493 return PTR_ERR(vbus_reg);
494 }
495 }
496
497 omap->dev = dev;
498 omap->irq = irq;
499 omap->base = base;
500 omap->vbus_reg = vbus_reg;
501
502 pm_runtime_enable(dev);
503 ret = pm_runtime_get_sync(dev);
504 if (ret < 0) {
505 dev_err(dev, "get_sync failed with err %d\n", ret);
506 goto err1;
507 }
508
509 dwc3_omap_map_offset(omap);
510 dwc3_omap_set_utmi_mode(omap);
511
512 /* check the DMA Status */
513 reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
514 irq_set_status_flags(omap->irq, IRQ_NOAUTOEN);
515 ret = devm_request_threaded_irq(dev, omap->irq, dwc3_omap_interrupt,
516 dwc3_omap_interrupt_thread, IRQF_SHARED,
517 "dwc3-omap", omap);
518 if (ret) {
519 dev_err(dev, "failed to request IRQ #%d --> %d\n",
520 omap->irq, ret);
521 goto err1;
522 }
523
524 ret = dwc3_omap_extcon_register(omap);
525 if (ret < 0)
526 goto err1;
527
528 ret = of_platform_populate(node, NULL, NULL, dev);
529 if (ret) {
530 dev_err(&pdev->dev, "failed to create dwc3 core\n");
531 goto err1;
532 }
533
534 dwc3_omap_enable_irqs(omap);
535 enable_irq(omap->irq);
536 return 0;
537
538 err1:
539 pm_runtime_put_sync(dev);
540 pm_runtime_disable(dev);
541
542 return ret;
543 }
544
545 static int dwc3_omap_remove(struct platform_device *pdev)
546 {
547 struct dwc3_omap *omap = platform_get_drvdata(pdev);
548
549 dwc3_omap_disable_irqs(omap);
550 disable_irq(omap->irq);
551 of_platform_depopulate(omap->dev);
552 pm_runtime_put_sync(&pdev->dev);
553 pm_runtime_disable(&pdev->dev);
554
555 return 0;
556 }
557
558 static const struct of_device_id of_dwc3_match[] = {
559 {
560 .compatible = "ti,dwc3"
561 },
562 {
563 .compatible = "ti,am437x-dwc3"
564 },
565 { },
566 };
567 MODULE_DEVICE_TABLE(of, of_dwc3_match);
568
569 #ifdef CONFIG_PM_SLEEP
570 static int dwc3_omap_suspend(struct device *dev)
571 {
572 struct dwc3_omap *omap = dev_get_drvdata(dev);
573
574 omap->utmi_otg_ctrl = dwc3_omap_read_utmi_ctrl(omap);
575 dwc3_omap_disable_irqs(omap);
576
577 return 0;
578 }
579
580 static int dwc3_omap_resume(struct device *dev)
581 {
582 struct dwc3_omap *omap = dev_get_drvdata(dev);
583
584 dwc3_omap_write_utmi_ctrl(omap, omap->utmi_otg_ctrl);
585 dwc3_omap_enable_irqs(omap);
586
587 pm_runtime_disable(dev);
588 pm_runtime_set_active(dev);
589 pm_runtime_enable(dev);
590
591 return 0;
592 }
593
594 static const struct dev_pm_ops dwc3_omap_dev_pm_ops = {
595
596 SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume)
597 };
598
599 #define DEV_PM_OPS (&dwc3_omap_dev_pm_ops)
600 #else
601 #define DEV_PM_OPS NULL
602 #endif /* CONFIG_PM_SLEEP */
603
604 static struct platform_driver dwc3_omap_driver = {
605 .probe = dwc3_omap_probe,
606 .remove = dwc3_omap_remove,
607 .driver = {
608 .name = "omap-dwc3",
609 .of_match_table = of_dwc3_match,
610 .pm = DEV_PM_OPS,
611 },
612 };
613
614 module_platform_driver(dwc3_omap_driver);
615
616 MODULE_ALIAS("platform:omap-dwc3");
617 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
618 MODULE_LICENSE("GPL v2");
619 MODULE_DESCRIPTION("DesignWare USB3 OMAP Glue Layer");
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