1 /*
2 * Motorola CPCAP PMIC USB PHY driver
3 * Copyright (C) 2017 Tony Lindgren <tony@atomide.com>
4 *
5 * Some parts based on earlier Motorola Linux kernel tree code in
6 * board-mapphone-usb.c and cpcap-usb-det.c:
7 * Copyright (C) 2007 - 2011 Motorola, Inc.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation version 2.
12 *
13 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
14 * kind, whether express or implied; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19 #include <linux/atomic.h>
20 #include <linux/clk.h>
21 #include <linux/delay.h>
22 #include <linux/err.h>
23 #include <linux/io.h>
24 #include <linux/module.h>
25 #include <linux/of.h>
26 #include <linux/of_platform.h>
27 #include <linux/iio/consumer.h>
28 #include <linux/pinctrl/consumer.h>
29 #include <linux/platform_device.h>
30 #include <linux/regmap.h>
31 #include <linux/slab.h>
32
33 #include <linux/gpio/consumer.h>
34 #include <linux/mfd/motorola-cpcap.h>
35 #include <linux/phy/omap_usb.h>
36 #include <linux/phy/phy.h>
37 #include <linux/regulator/consumer.h>
38 #include <linux/usb/musb.h>
39
40 /* CPCAP_REG_USBC1 register bits */
41 #define CPCAP_BIT_IDPULSE BIT(15)
42 #define CPCAP_BIT_ID100KPU BIT(14)
43 #define CPCAP_BIT_IDPUCNTRL BIT(13)
44 #define CPCAP_BIT_IDPU BIT(12)
45 #define CPCAP_BIT_IDPD BIT(11)
46 #define CPCAP_BIT_VBUSCHRGTMR3 BIT(10)
47 #define CPCAP_BIT_VBUSCHRGTMR2 BIT(9)
48 #define CPCAP_BIT_VBUSCHRGTMR1 BIT(8)
49 #define CPCAP_BIT_VBUSCHRGTMR0 BIT(7)
50 #define CPCAP_BIT_VBUSPU BIT(6)
51 #define CPCAP_BIT_VBUSPD BIT(5)
52 #define CPCAP_BIT_DMPD BIT(4)
53 #define CPCAP_BIT_DPPD BIT(3)
54 #define CPCAP_BIT_DM1K5PU BIT(2)
55 #define CPCAP_BIT_DP1K5PU BIT(1)
56 #define CPCAP_BIT_DP150KPU BIT(0)
57
58 /* CPCAP_REG_USBC2 register bits */
59 #define CPCAP_BIT_ZHSDRV1 BIT(15)
60 #define CPCAP_BIT_ZHSDRV0 BIT(14)
61 #define CPCAP_BIT_DPLLCLKREQ BIT(13)
62 #define CPCAP_BIT_SE0CONN BIT(12)
63 #define CPCAP_BIT_UARTTXTRI BIT(11)
64 #define CPCAP_BIT_UARTSWAP BIT(10)
65 #define CPCAP_BIT_UARTMUX1 BIT(9)
66 #define CPCAP_BIT_UARTMUX0 BIT(8)
67 #define CPCAP_BIT_ULPISTPLOW BIT(7)
68 #define CPCAP_BIT_TXENPOL BIT(6)
69 #define CPCAP_BIT_USBXCVREN BIT(5)
70 #define CPCAP_BIT_USBCNTRL BIT(4)
71 #define CPCAP_BIT_USBSUSPEND BIT(3)
72 #define CPCAP_BIT_EMUMODE2 BIT(2)
73 #define CPCAP_BIT_EMUMODE1 BIT(1)
74 #define CPCAP_BIT_EMUMODE0 BIT(0)
75
76 /* CPCAP_REG_USBC3 register bits */
77 #define CPCAP_BIT_SPARE_898_15 BIT(15)
78 #define CPCAP_BIT_IHSTX03 BIT(14)
79 #define CPCAP_BIT_IHSTX02 BIT(13)
80 #define CPCAP_BIT_IHSTX01 BIT(12)
81 #define CPCAP_BIT_IHSTX0 BIT(11)
82 #define CPCAP_BIT_IDPU_SPI BIT(10)
83 #define CPCAP_BIT_UNUSED_898_9 BIT(9)
84 #define CPCAP_BIT_VBUSSTBY_EN BIT(8)
85 #define CPCAP_BIT_VBUSEN_SPI BIT(7)
86 #define CPCAP_BIT_VBUSPU_SPI BIT(6)
87 #define CPCAP_BIT_VBUSPD_SPI BIT(5)
88 #define CPCAP_BIT_DMPD_SPI BIT(4)
89 #define CPCAP_BIT_DPPD_SPI BIT(3)
90 #define CPCAP_BIT_SUSPEND_SPI BIT(2)
91 #define CPCAP_BIT_PU_SPI BIT(1)
92 #define CPCAP_BIT_ULPI_SPI_SEL BIT(0)
93
94 struct cpcap_usb_ints_state {
95 bool id_ground;
96 bool id_float;
97 bool chrg_det;
98 bool rvrs_chrg;
99 bool vbusov;
100
101 bool chrg_se1b;
102 bool se0conn;
103 bool rvrs_mode;
104 bool chrgcurr1;
105 bool vbusvld;
106 bool sessvld;
107 bool sessend;
108 bool se1;
109
110 bool battdetb;
111 bool dm;
112 bool dp;
113 };
114
115 enum cpcap_gpio_mode {
116 CPCAP_DM_DP,
117 CPCAP_MDM_RX_TX,
118 CPCAP_UNKNOWN,
119 CPCAP_OTG_DM_DP,
120 };
121
122 struct cpcap_phy_ddata {
123 struct regmap *reg;
124 struct device *dev;
125 struct clk *refclk;
126 struct usb_phy phy;
127 struct delayed_work detect_work;
128 struct pinctrl *pins;
129 struct pinctrl_state *pins_ulpi;
130 struct pinctrl_state *pins_utmi;
131 struct pinctrl_state *pins_uart;
132 struct gpio_desc *gpio[2];
133 struct iio_channel *vbus;
134 struct iio_channel *id;
135 struct regulator *vusb;
136 atomic_t active;
137 };
138
cpcap_usb_vbus_valid(struct cpcap_phy_ddata * ddata)139 static bool cpcap_usb_vbus_valid(struct cpcap_phy_ddata *ddata)
140 {
141 int error, value = 0;
142
143 error = iio_read_channel_processed(ddata->vbus, &value);
144 if (error >= 0)
145 return value > 3900 ? true : false;
146
147 dev_err(ddata->dev, "error reading VBUS: %i\n", error);
148
149 return false;
150 }
151
cpcap_usb_phy_set_host(struct usb_otg * otg,struct usb_bus * host)152 static int cpcap_usb_phy_set_host(struct usb_otg *otg, struct usb_bus *host)
153 {
154 otg->host = host;
155 if (!host)
156 otg->state = OTG_STATE_UNDEFINED;
157
158 return 0;
159 }
160
cpcap_usb_phy_set_peripheral(struct usb_otg * otg,struct usb_gadget * gadget)161 static int cpcap_usb_phy_set_peripheral(struct usb_otg *otg,
162 struct usb_gadget *gadget)
163 {
164 otg->gadget = gadget;
165 if (!gadget)
166 otg->state = OTG_STATE_UNDEFINED;
167
168 return 0;
169 }
170
171 static const struct phy_ops ops = {
172 .owner = THIS_MODULE,
173 };
174
cpcap_phy_get_ints_state(struct cpcap_phy_ddata * ddata,struct cpcap_usb_ints_state * s)175 static int cpcap_phy_get_ints_state(struct cpcap_phy_ddata *ddata,
176 struct cpcap_usb_ints_state *s)
177 {
178 int val, error;
179
180 error = regmap_read(ddata->reg, CPCAP_REG_INTS1, &val);
181 if (error)
182 return error;
183
184 s->id_ground = val & BIT(15);
185 s->id_float = val & BIT(14);
186 s->vbusov = val & BIT(11);
187
188 error = regmap_read(ddata->reg, CPCAP_REG_INTS2, &val);
189 if (error)
190 return error;
191
192 s->vbusvld = val & BIT(3);
193 s->sessvld = val & BIT(2);
194 s->sessend = val & BIT(1);
195 s->se1 = val & BIT(0);
196
197 error = regmap_read(ddata->reg, CPCAP_REG_INTS4, &val);
198 if (error)
199 return error;
200
201 s->dm = val & BIT(1);
202 s->dp = val & BIT(0);
203
204 return 0;
205 }
206
207 static int cpcap_usb_set_uart_mode(struct cpcap_phy_ddata *ddata);
208 static int cpcap_usb_set_usb_mode(struct cpcap_phy_ddata *ddata);
209
cpcap_usb_detect(struct work_struct * work)210 static void cpcap_usb_detect(struct work_struct *work)
211 {
212 struct cpcap_phy_ddata *ddata;
213 struct cpcap_usb_ints_state s;
214 bool vbus = false;
215 int error;
216
217 ddata = container_of(work, struct cpcap_phy_ddata, detect_work.work);
218
219 error = cpcap_phy_get_ints_state(ddata, &s);
220 if (error)
221 return;
222
223 if (s.id_ground) {
224 dev_dbg(ddata->dev, "id ground, USB host mode\n");
225 error = cpcap_usb_set_usb_mode(ddata);
226 if (error)
227 goto out_err;
228
229 error = musb_mailbox(MUSB_ID_GROUND);
230 if (error)
231 goto out_err;
232
233 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
234 CPCAP_BIT_VBUSSTBY_EN |
235 CPCAP_BIT_VBUSEN_SPI,
236 CPCAP_BIT_VBUSEN_SPI);
237 if (error)
238 goto out_err;
239
240 return;
241 }
242
243 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
244 CPCAP_BIT_VBUSSTBY_EN |
245 CPCAP_BIT_VBUSEN_SPI, 0);
246 if (error)
247 goto out_err;
248
249 vbus = cpcap_usb_vbus_valid(ddata);
250
251 if (vbus) {
252 /* Are we connected to a docking station with vbus? */
253 if (s.id_ground) {
254 dev_dbg(ddata->dev, "connected to a dock\n");
255
256 /* No VBUS needed with docks */
257 error = cpcap_usb_set_usb_mode(ddata);
258 if (error)
259 goto out_err;
260 error = musb_mailbox(MUSB_ID_GROUND);
261 if (error)
262 goto out_err;
263
264 return;
265 }
266
267 /* Otherwise assume we're connected to a USB host */
268 dev_dbg(ddata->dev, "connected to USB host\n");
269 error = cpcap_usb_set_usb_mode(ddata);
270 if (error)
271 goto out_err;
272 error = musb_mailbox(MUSB_VBUS_VALID);
273 if (error)
274 goto out_err;
275
276 return;
277 }
278
279 /* Default to debug UART mode */
280 error = cpcap_usb_set_uart_mode(ddata);
281 if (error)
282 goto out_err;
283
284 error = musb_mailbox(MUSB_VBUS_OFF);
285 if (error)
286 goto out_err;
287
288 dev_dbg(ddata->dev, "set UART mode\n");
289
290 return;
291
292 out_err:
293 dev_err(ddata->dev, "error setting cable state: %i\n", error);
294 }
295
cpcap_phy_irq_thread(int irq,void * data)296 static irqreturn_t cpcap_phy_irq_thread(int irq, void *data)
297 {
298 struct cpcap_phy_ddata *ddata = data;
299
300 if (!atomic_read(&ddata->active))
301 return IRQ_NONE;
302
303 schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
304
305 return IRQ_HANDLED;
306 }
307
cpcap_usb_init_irq(struct platform_device * pdev,struct cpcap_phy_ddata * ddata,const char * name)308 static int cpcap_usb_init_irq(struct platform_device *pdev,
309 struct cpcap_phy_ddata *ddata,
310 const char *name)
311 {
312 int irq, error;
313
314 irq = platform_get_irq_byname(pdev, name);
315 if (irq < 0)
316 return -ENODEV;
317
318 error = devm_request_threaded_irq(ddata->dev, irq, NULL,
319 cpcap_phy_irq_thread,
320 IRQF_SHARED,
321 name, ddata);
322 if (error) {
323 dev_err(ddata->dev, "could not get irq %s: %i\n",
324 name, error);
325
326 return error;
327 }
328
329 return 0;
330 }
331
332 static const char * const cpcap_phy_irqs[] = {
333 /* REG_INT_0 */
334 "id_ground", "id_float",
335
336 /* REG_INT1 */
337 "se0conn", "vbusvld", "sessvld", "sessend", "se1",
338
339 /* REG_INT_3 */
340 "dm", "dp",
341 };
342
cpcap_usb_init_interrupts(struct platform_device * pdev,struct cpcap_phy_ddata * ddata)343 static int cpcap_usb_init_interrupts(struct platform_device *pdev,
344 struct cpcap_phy_ddata *ddata)
345 {
346 int i, error;
347
348 for (i = 0; i < ARRAY_SIZE(cpcap_phy_irqs); i++) {
349 error = cpcap_usb_init_irq(pdev, ddata, cpcap_phy_irqs[i]);
350 if (error)
351 return error;
352 }
353
354 return 0;
355 }
356
357 /*
358 * Optional pins and modes. At least Motorola mapphone devices
359 * are using two GPIOs and dynamic pinctrl to multiplex PHY pins
360 * to UART, ULPI or UTMI mode.
361 */
362
cpcap_usb_gpio_set_mode(struct cpcap_phy_ddata * ddata,enum cpcap_gpio_mode mode)363 static int cpcap_usb_gpio_set_mode(struct cpcap_phy_ddata *ddata,
364 enum cpcap_gpio_mode mode)
365 {
366 if (!ddata->gpio[0] || !ddata->gpio[1])
367 return 0;
368
369 gpiod_set_value(ddata->gpio[0], mode & 1);
370 gpiod_set_value(ddata->gpio[1], mode >> 1);
371
372 return 0;
373 }
374
cpcap_usb_set_uart_mode(struct cpcap_phy_ddata * ddata)375 static int cpcap_usb_set_uart_mode(struct cpcap_phy_ddata *ddata)
376 {
377 int error;
378
379 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_DM_DP);
380 if (error)
381 goto out_err;
382
383 if (ddata->pins_uart) {
384 error = pinctrl_select_state(ddata->pins, ddata->pins_uart);
385 if (error)
386 goto out_err;
387 }
388
389 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC1,
390 CPCAP_BIT_VBUSPD,
391 CPCAP_BIT_VBUSPD);
392 if (error)
393 goto out_err;
394
395 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC2,
396 0xffff, CPCAP_BIT_UARTMUX0 |
397 CPCAP_BIT_EMUMODE0);
398 if (error)
399 goto out_err;
400
401 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3, 0x7fff,
402 CPCAP_BIT_IDPU_SPI);
403 if (error)
404 goto out_err;
405
406 return 0;
407
408 out_err:
409 dev_err(ddata->dev, "%s failed with %i\n", __func__, error);
410
411 return error;
412 }
413
cpcap_usb_set_usb_mode(struct cpcap_phy_ddata * ddata)414 static int cpcap_usb_set_usb_mode(struct cpcap_phy_ddata *ddata)
415 {
416 int error;
417
418 error = cpcap_usb_gpio_set_mode(ddata, CPCAP_OTG_DM_DP);
419 if (error)
420 return error;
421
422 if (ddata->pins_utmi) {
423 error = pinctrl_select_state(ddata->pins, ddata->pins_utmi);
424 if (error) {
425 dev_err(ddata->dev, "could not set usb mode: %i\n",
426 error);
427
428 return error;
429 }
430 }
431
432 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC1,
433 CPCAP_BIT_VBUSPD, 0);
434 if (error)
435 goto out_err;
436
437 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC2,
438 CPCAP_BIT_USBXCVREN,
439 CPCAP_BIT_USBXCVREN);
440 if (error)
441 goto out_err;
442
443 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3,
444 CPCAP_BIT_PU_SPI |
445 CPCAP_BIT_DMPD_SPI |
446 CPCAP_BIT_DPPD_SPI |
447 CPCAP_BIT_SUSPEND_SPI |
448 CPCAP_BIT_ULPI_SPI_SEL, 0);
449 if (error)
450 goto out_err;
451
452 error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC2,
453 CPCAP_BIT_USBXCVREN,
454 CPCAP_BIT_USBXCVREN);
455 if (error)
456 goto out_err;
457
458 return 0;
459
460 out_err:
461 dev_err(ddata->dev, "%s failed with %i\n", __func__, error);
462
463 return error;
464 }
465
cpcap_usb_init_optional_pins(struct cpcap_phy_ddata * ddata)466 static int cpcap_usb_init_optional_pins(struct cpcap_phy_ddata *ddata)
467 {
468 ddata->pins = devm_pinctrl_get(ddata->dev);
469 if (IS_ERR(ddata->pins)) {
470 dev_info(ddata->dev, "default pins not configured: %ld\n",
471 PTR_ERR(ddata->pins));
472 ddata->pins = NULL;
473
474 return 0;
475 }
476
477 ddata->pins_ulpi = pinctrl_lookup_state(ddata->pins, "ulpi");
478 if (IS_ERR(ddata->pins_ulpi)) {
479 dev_info(ddata->dev, "ulpi pins not configured\n");
480 ddata->pins_ulpi = NULL;
481 }
482
483 ddata->pins_utmi = pinctrl_lookup_state(ddata->pins, "utmi");
484 if (IS_ERR(ddata->pins_utmi)) {
485 dev_info(ddata->dev, "utmi pins not configured\n");
486 ddata->pins_utmi = NULL;
487 }
488
489 ddata->pins_uart = pinctrl_lookup_state(ddata->pins, "uart");
490 if (IS_ERR(ddata->pins_uart)) {
491 dev_info(ddata->dev, "uart pins not configured\n");
492 ddata->pins_uart = NULL;
493 }
494
495 if (ddata->pins_uart)
496 return pinctrl_select_state(ddata->pins, ddata->pins_uart);
497
498 return 0;
499 }
500
cpcap_usb_init_optional_gpios(struct cpcap_phy_ddata * ddata)501 static void cpcap_usb_init_optional_gpios(struct cpcap_phy_ddata *ddata)
502 {
503 int i;
504
505 for (i = 0; i < 2; i++) {
506 ddata->gpio[i] = devm_gpiod_get_index(ddata->dev, "mode",
507 i, GPIOD_OUT_HIGH);
508 if (IS_ERR(ddata->gpio[i])) {
509 dev_info(ddata->dev, "no mode change GPIO%i: %li\n",
510 i, PTR_ERR(ddata->gpio[i]));
511 ddata->gpio[i] = NULL;
512 }
513 }
514 }
515
cpcap_usb_init_iio(struct cpcap_phy_ddata * ddata)516 static int cpcap_usb_init_iio(struct cpcap_phy_ddata *ddata)
517 {
518 enum iio_chan_type type;
519 int error;
520
521 ddata->vbus = devm_iio_channel_get(ddata->dev, "vbus");
522 if (IS_ERR(ddata->vbus)) {
523 error = PTR_ERR(ddata->vbus);
524 goto out_err;
525 }
526
527 if (!ddata->vbus->indio_dev) {
528 error = -ENXIO;
529 goto out_err;
530 }
531
532 error = iio_get_channel_type(ddata->vbus, &type);
533 if (error < 0)
534 goto out_err;
535
536 if (type != IIO_VOLTAGE) {
537 error = -EINVAL;
538 goto out_err;
539 }
540
541 return 0;
542
543 out_err:
544 dev_err(ddata->dev, "could not initialize VBUS or ID IIO: %i\n",
545 error);
546
547 return error;
548 }
549
550 #ifdef CONFIG_OF
551 static const struct of_device_id cpcap_usb_phy_id_table[] = {
552 {
553 .compatible = "motorola,cpcap-usb-phy",
554 },
555 {
556 .compatible = "motorola,mapphone-cpcap-usb-phy",
557 },
558 {},
559 };
560 MODULE_DEVICE_TABLE(of, cpcap_usb_phy_id_table);
561 #endif
562
cpcap_usb_phy_probe(struct platform_device * pdev)563 static int cpcap_usb_phy_probe(struct platform_device *pdev)
564 {
565 struct cpcap_phy_ddata *ddata;
566 struct phy *generic_phy;
567 struct phy_provider *phy_provider;
568 struct usb_otg *otg;
569 const struct of_device_id *of_id;
570 int error;
571
572 of_id = of_match_device(of_match_ptr(cpcap_usb_phy_id_table),
573 &pdev->dev);
574 if (!of_id)
575 return -EINVAL;
576
577 ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
578 if (!ddata)
579 return -ENOMEM;
580
581 ddata->reg = dev_get_regmap(pdev->dev.parent, NULL);
582 if (!ddata->reg)
583 return -ENODEV;
584
585 otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
586 if (!otg)
587 return -ENOMEM;
588
589 ddata->dev = &pdev->dev;
590 ddata->phy.dev = ddata->dev;
591 ddata->phy.label = "cpcap_usb_phy";
592 ddata->phy.otg = otg;
593 ddata->phy.type = USB_PHY_TYPE_USB2;
594 otg->set_host = cpcap_usb_phy_set_host;
595 otg->set_peripheral = cpcap_usb_phy_set_peripheral;
596 otg->usb_phy = &ddata->phy;
597 INIT_DELAYED_WORK(&ddata->detect_work, cpcap_usb_detect);
598 platform_set_drvdata(pdev, ddata);
599
600 ddata->vusb = devm_regulator_get(&pdev->dev, "vusb");
601 if (IS_ERR(ddata->vusb))
602 return PTR_ERR(ddata->vusb);
603
604 error = regulator_enable(ddata->vusb);
605 if (error)
606 return error;
607
608 generic_phy = devm_phy_create(ddata->dev, NULL, &ops);
609 if (IS_ERR(generic_phy)) {
610 error = PTR_ERR(generic_phy);
611 return PTR_ERR(generic_phy);
612 }
613
614 phy_set_drvdata(generic_phy, ddata);
615
616 phy_provider = devm_of_phy_provider_register(ddata->dev,
617 of_phy_simple_xlate);
618 if (IS_ERR(phy_provider))
619 return PTR_ERR(phy_provider);
620
621 error = cpcap_usb_init_optional_pins(ddata);
622 if (error)
623 return error;
624
625 cpcap_usb_init_optional_gpios(ddata);
626
627 error = cpcap_usb_init_iio(ddata);
628 if (error)
629 return error;
630
631 error = cpcap_usb_init_interrupts(pdev, ddata);
632 if (error)
633 return error;
634
635 usb_add_phy_dev(&ddata->phy);
636 atomic_set(&ddata->active, 1);
637 schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
638
639 return 0;
640 }
641
cpcap_usb_phy_remove(struct platform_device * pdev)642 static int cpcap_usb_phy_remove(struct platform_device *pdev)
643 {
644 struct cpcap_phy_ddata *ddata = platform_get_drvdata(pdev);
645 int error;
646
647 atomic_set(&ddata->active, 0);
648 error = cpcap_usb_set_uart_mode(ddata);
649 if (error)
650 dev_err(ddata->dev, "could not set UART mode\n");
651
652 error = musb_mailbox(MUSB_VBUS_OFF);
653 if (error)
654 dev_err(ddata->dev, "could not set mailbox\n");
655
656 usb_remove_phy(&ddata->phy);
657 cancel_delayed_work_sync(&ddata->detect_work);
658 clk_unprepare(ddata->refclk);
659 regulator_disable(ddata->vusb);
660
661 return 0;
662 }
663
664 static struct platform_driver cpcap_usb_phy_driver = {
665 .probe = cpcap_usb_phy_probe,
666 .remove = cpcap_usb_phy_remove,
667 .driver = {
668 .name = "cpcap-usb-phy",
669 .of_match_table = of_match_ptr(cpcap_usb_phy_id_table),
670 },
671 };
672
673 module_platform_driver(cpcap_usb_phy_driver);
674
675 MODULE_ALIAS("platform:cpcap_usb");
676 MODULE_AUTHOR("Tony Lindgren <tony@atomide.com>");
677 MODULE_DESCRIPTION("CPCAP usb phy driver");
678 MODULE_LICENSE("GPL v2");
679
