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usb: musb: omap2430: use the new generic PHY framework
[deliverable/linux.git] / drivers / usb / musb / omap2430.c
1 /*
2 * Copyright (C) 2005-2007 by Texas Instruments
3 * Some code has been taken from tusb6010.c
4 * Copyrights for that are attributable to:
5 * Copyright (C) 2006 Nokia Corporation
6 * Tony Lindgren <tony@atomide.com>
7 *
8 * This file is part of the Inventra Controller Driver for Linux.
9 *
10 * The Inventra Controller Driver for Linux is free software; you
11 * can redistribute it and/or modify it under the terms of the GNU
12 * General Public License version 2 as published by the Free Software
13 * Foundation.
14 *
15 * The Inventra Controller Driver for Linux is distributed in
16 * the hope that it will be useful, but WITHOUT ANY WARRANTY;
17 * without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
19 * License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with The Inventra Controller Driver for Linux ; if not,
23 * write to the Free Software Foundation, Inc., 59 Temple Place,
24 * Suite 330, Boston, MA 02111-1307 USA
25 *
26 */
27 #include <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/sched.h>
30 #include <linux/init.h>
31 #include <linux/list.h>
32 #include <linux/io.h>
33 #include <linux/of.h>
34 #include <linux/platform_device.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/pm_runtime.h>
37 #include <linux/err.h>
38 #include <linux/delay.h>
39 #include <linux/usb/musb-omap.h>
40 #include <linux/usb/omap_control_usb.h>
41
42 #include "musb_core.h"
43 #include "omap2430.h"
44
45 struct omap2430_glue {
46 struct device *dev;
47 struct platform_device *musb;
48 enum omap_musb_vbus_id_status status;
49 struct work_struct omap_musb_mailbox_work;
50 struct device *control_otghs;
51 };
52 #define glue_to_musb(g) platform_get_drvdata(g->musb)
53
54 static struct omap2430_glue *_glue;
55
56 static struct timer_list musb_idle_timer;
57
58 static void musb_do_idle(unsigned long _musb)
59 {
60 struct musb *musb = (void *)_musb;
61 unsigned long flags;
62 u8 power;
63 u8 devctl;
64
65 spin_lock_irqsave(&musb->lock, flags);
66
67 switch (musb->xceiv->state) {
68 case OTG_STATE_A_WAIT_BCON:
69
70 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
71 if (devctl & MUSB_DEVCTL_BDEVICE) {
72 musb->xceiv->state = OTG_STATE_B_IDLE;
73 MUSB_DEV_MODE(musb);
74 } else {
75 musb->xceiv->state = OTG_STATE_A_IDLE;
76 MUSB_HST_MODE(musb);
77 }
78 break;
79 case OTG_STATE_A_SUSPEND:
80 /* finish RESUME signaling? */
81 if (musb->port1_status & MUSB_PORT_STAT_RESUME) {
82 power = musb_readb(musb->mregs, MUSB_POWER);
83 power &= ~MUSB_POWER_RESUME;
84 dev_dbg(musb->controller, "root port resume stopped, power %02x\n", power);
85 musb_writeb(musb->mregs, MUSB_POWER, power);
86 musb->is_active = 1;
87 musb->port1_status &= ~(USB_PORT_STAT_SUSPEND
88 | MUSB_PORT_STAT_RESUME);
89 musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
90 usb_hcd_poll_rh_status(musb->hcd);
91 /* NOTE: it might really be A_WAIT_BCON ... */
92 musb->xceiv->state = OTG_STATE_A_HOST;
93 }
94 break;
95 case OTG_STATE_A_HOST:
96 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
97 if (devctl & MUSB_DEVCTL_BDEVICE)
98 musb->xceiv->state = OTG_STATE_B_IDLE;
99 else
100 musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
101 default:
102 break;
103 }
104 spin_unlock_irqrestore(&musb->lock, flags);
105 }
106
107
108 static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout)
109 {
110 unsigned long default_timeout = jiffies + msecs_to_jiffies(3);
111 static unsigned long last_timer;
112
113 if (timeout == 0)
114 timeout = default_timeout;
115
116 /* Never idle if active, or when VBUS timeout is not set as host */
117 if (musb->is_active || ((musb->a_wait_bcon == 0)
118 && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
119 dev_dbg(musb->controller, "%s active, deleting timer\n",
120 usb_otg_state_string(musb->xceiv->state));
121 del_timer(&musb_idle_timer);
122 last_timer = jiffies;
123 return;
124 }
125
126 if (time_after(last_timer, timeout)) {
127 if (!timer_pending(&musb_idle_timer))
128 last_timer = timeout;
129 else {
130 dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n");
131 return;
132 }
133 }
134 last_timer = timeout;
135
136 dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
137 usb_otg_state_string(musb->xceiv->state),
138 (unsigned long)jiffies_to_msecs(timeout - jiffies));
139 mod_timer(&musb_idle_timer, timeout);
140 }
141
142 static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
143 {
144 struct usb_otg *otg = musb->xceiv->otg;
145 u8 devctl;
146 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
147 /* HDRC controls CPEN, but beware current surges during device
148 * connect. They can trigger transient overcurrent conditions
149 * that must be ignored.
150 */
151
152 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
153
154 if (is_on) {
155 if (musb->xceiv->state == OTG_STATE_A_IDLE) {
156 int loops = 100;
157 /* start the session */
158 devctl |= MUSB_DEVCTL_SESSION;
159 musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
160 /*
161 * Wait for the musb to set as A device to enable the
162 * VBUS
163 */
164 while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {
165
166 mdelay(5);
167 cpu_relax();
168
169 if (time_after(jiffies, timeout)
170 || loops-- <= 0) {
171 dev_err(musb->controller,
172 "configured as A device timeout");
173 break;
174 }
175 }
176
177 otg_set_vbus(otg, 1);
178 } else {
179 musb->is_active = 1;
180 otg->default_a = 1;
181 musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
182 devctl |= MUSB_DEVCTL_SESSION;
183 MUSB_HST_MODE(musb);
184 }
185 } else {
186 musb->is_active = 0;
187
188 /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and
189 * jumping right to B_IDLE...
190 */
191
192 otg->default_a = 0;
193 musb->xceiv->state = OTG_STATE_B_IDLE;
194 devctl &= ~MUSB_DEVCTL_SESSION;
195
196 MUSB_DEV_MODE(musb);
197 }
198 musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
199
200 dev_dbg(musb->controller, "VBUS %s, devctl %02x "
201 /* otg %3x conf %08x prcm %08x */ "\n",
202 usb_otg_state_string(musb->xceiv->state),
203 musb_readb(musb->mregs, MUSB_DEVCTL));
204 }
205
206 static int omap2430_musb_set_mode(struct musb *musb, u8 musb_mode)
207 {
208 u8 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
209
210 devctl |= MUSB_DEVCTL_SESSION;
211 musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
212
213 return 0;
214 }
215
216 static inline void omap2430_low_level_exit(struct musb *musb)
217 {
218 u32 l;
219
220 /* in any role */
221 l = musb_readl(musb->mregs, OTG_FORCESTDBY);
222 l |= ENABLEFORCE; /* enable MSTANDBY */
223 musb_writel(musb->mregs, OTG_FORCESTDBY, l);
224 }
225
226 static inline void omap2430_low_level_init(struct musb *musb)
227 {
228 u32 l;
229
230 l = musb_readl(musb->mregs, OTG_FORCESTDBY);
231 l &= ~ENABLEFORCE; /* disable MSTANDBY */
232 musb_writel(musb->mregs, OTG_FORCESTDBY, l);
233 }
234
235 void omap_musb_mailbox(enum omap_musb_vbus_id_status status)
236 {
237 struct omap2430_glue *glue = _glue;
238
239 if (!glue) {
240 pr_err("%s: musb core is not yet initialized\n", __func__);
241 return;
242 }
243 glue->status = status;
244
245 if (!glue_to_musb(glue)) {
246 pr_err("%s: musb core is not yet ready\n", __func__);
247 return;
248 }
249
250 schedule_work(&glue->omap_musb_mailbox_work);
251 }
252 EXPORT_SYMBOL_GPL(omap_musb_mailbox);
253
254 static void omap_musb_set_mailbox(struct omap2430_glue *glue)
255 {
256 struct musb *musb = glue_to_musb(glue);
257 struct device *dev = musb->controller;
258 struct musb_hdrc_platform_data *pdata = dev_get_platdata(dev);
259 struct omap_musb_board_data *data = pdata->board_data;
260 struct usb_otg *otg = musb->xceiv->otg;
261
262 switch (glue->status) {
263 case OMAP_MUSB_ID_GROUND:
264 dev_dbg(dev, "ID GND\n");
265
266 otg->default_a = true;
267 musb->xceiv->state = OTG_STATE_A_IDLE;
268 musb->xceiv->last_event = USB_EVENT_ID;
269 if (musb->gadget_driver) {
270 pm_runtime_get_sync(dev);
271 omap_control_usb_set_mode(glue->control_otghs,
272 USB_MODE_HOST);
273 omap2430_musb_set_vbus(musb, 1);
274 }
275 break;
276
277 case OMAP_MUSB_VBUS_VALID:
278 dev_dbg(dev, "VBUS Connect\n");
279
280 otg->default_a = false;
281 musb->xceiv->state = OTG_STATE_B_IDLE;
282 musb->xceiv->last_event = USB_EVENT_VBUS;
283 if (musb->gadget_driver)
284 pm_runtime_get_sync(dev);
285 omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
286 break;
287
288 case OMAP_MUSB_ID_FLOAT:
289 case OMAP_MUSB_VBUS_OFF:
290 dev_dbg(dev, "VBUS Disconnect\n");
291
292 musb->xceiv->last_event = USB_EVENT_NONE;
293 if (musb->gadget_driver) {
294 omap2430_musb_set_vbus(musb, 0);
295 pm_runtime_mark_last_busy(dev);
296 pm_runtime_put_autosuspend(dev);
297 }
298
299 if (data->interface_type == MUSB_INTERFACE_UTMI)
300 otg_set_vbus(musb->xceiv->otg, 0);
301
302 omap_control_usb_set_mode(glue->control_otghs,
303 USB_MODE_DISCONNECT);
304 break;
305 default:
306 dev_dbg(dev, "ID float\n");
307 }
308 }
309
310
311 static void omap_musb_mailbox_work(struct work_struct *mailbox_work)
312 {
313 struct omap2430_glue *glue = container_of(mailbox_work,
314 struct omap2430_glue, omap_musb_mailbox_work);
315 omap_musb_set_mailbox(glue);
316 }
317
318 static irqreturn_t omap2430_musb_interrupt(int irq, void *__hci)
319 {
320 unsigned long flags;
321 irqreturn_t retval = IRQ_NONE;
322 struct musb *musb = __hci;
323
324 spin_lock_irqsave(&musb->lock, flags);
325
326 musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
327 musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
328 musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
329
330 if (musb->int_usb || musb->int_tx || musb->int_rx)
331 retval = musb_interrupt(musb);
332
333 spin_unlock_irqrestore(&musb->lock, flags);
334
335 return retval;
336 }
337
338 static int omap2430_musb_init(struct musb *musb)
339 {
340 u32 l;
341 int status = 0;
342 struct device *dev = musb->controller;
343 struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
344 struct musb_hdrc_platform_data *plat = dev_get_platdata(dev);
345 struct omap_musb_board_data *data = plat->board_data;
346
347 /* We require some kind of external transceiver, hooked
348 * up through ULPI. TWL4030-family PMICs include one,
349 * which needs a driver, drivers aren't always needed.
350 */
351 if (dev->parent->of_node) {
352 musb->phy = devm_phy_get(dev->parent, "usb2-phy");
353
354 /* We can't totally remove musb->xceiv as of now because
355 * musb core uses xceiv.state and xceiv.otg. Once we have
356 * a separate state machine to handle otg, these can be moved
357 * out of xceiv and then we can start using the generic PHY
358 * framework
359 */
360 musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent,
361 "usb-phy", 0);
362 } else {
363 musb->xceiv = devm_usb_get_phy_dev(dev, 0);
364 musb->phy = devm_phy_get(dev, "usb");
365 }
366
367 if (IS_ERR(musb->xceiv)) {
368 status = PTR_ERR(musb->xceiv);
369
370 if (status == -ENXIO)
371 return status;
372
373 pr_err("HS USB OTG: no transceiver configured\n");
374 return -EPROBE_DEFER;
375 }
376
377 if (IS_ERR(musb->phy)) {
378 pr_err("HS USB OTG: no PHY configured\n");
379 return PTR_ERR(musb->phy);
380 }
381 musb->isr = omap2430_musb_interrupt;
382
383 status = pm_runtime_get_sync(dev);
384 if (status < 0) {
385 dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);
386 goto err1;
387 }
388
389 l = musb_readl(musb->mregs, OTG_INTERFSEL);
390
391 if (data->interface_type == MUSB_INTERFACE_UTMI) {
392 /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */
393 l &= ~ULPI_12PIN; /* Disable ULPI */
394 l |= UTMI_8BIT; /* Enable UTMI */
395 } else {
396 l |= ULPI_12PIN;
397 }
398
399 musb_writel(musb->mregs, OTG_INTERFSEL, l);
400
401 pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
402 "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
403 musb_readl(musb->mregs, OTG_REVISION),
404 musb_readl(musb->mregs, OTG_SYSCONFIG),
405 musb_readl(musb->mregs, OTG_SYSSTATUS),
406 musb_readl(musb->mregs, OTG_INTERFSEL),
407 musb_readl(musb->mregs, OTG_SIMENABLE));
408
409 setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
410
411 if (glue->status != OMAP_MUSB_UNKNOWN)
412 omap_musb_set_mailbox(glue);
413
414 phy_init(musb->phy);
415
416 pm_runtime_put_noidle(musb->controller);
417 return 0;
418
419 err1:
420 return status;
421 }
422
423 static void omap2430_musb_enable(struct musb *musb)
424 {
425 u8 devctl;
426 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
427 struct device *dev = musb->controller;
428 struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
429 struct musb_hdrc_platform_data *pdata = dev_get_platdata(dev);
430 struct omap_musb_board_data *data = pdata->board_data;
431
432 switch (glue->status) {
433
434 case OMAP_MUSB_ID_GROUND:
435 omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST);
436 if (data->interface_type != MUSB_INTERFACE_UTMI)
437 break;
438 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
439 /* start the session */
440 devctl |= MUSB_DEVCTL_SESSION;
441 musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
442 while (musb_readb(musb->mregs, MUSB_DEVCTL) &
443 MUSB_DEVCTL_BDEVICE) {
444 cpu_relax();
445
446 if (time_after(jiffies, timeout)) {
447 dev_err(dev, "configured as A device timeout");
448 break;
449 }
450 }
451 break;
452
453 case OMAP_MUSB_VBUS_VALID:
454 omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
455 break;
456
457 default:
458 break;
459 }
460 }
461
462 static void omap2430_musb_disable(struct musb *musb)
463 {
464 struct device *dev = musb->controller;
465 struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
466
467 if (glue->status != OMAP_MUSB_UNKNOWN)
468 omap_control_usb_set_mode(glue->control_otghs,
469 USB_MODE_DISCONNECT);
470 }
471
472 static int omap2430_musb_exit(struct musb *musb)
473 {
474 del_timer_sync(&musb_idle_timer);
475
476 omap2430_low_level_exit(musb);
477 phy_exit(musb->phy);
478
479 return 0;
480 }
481
482 static const struct musb_platform_ops omap2430_ops = {
483 .init = omap2430_musb_init,
484 .exit = omap2430_musb_exit,
485
486 .set_mode = omap2430_musb_set_mode,
487 .try_idle = omap2430_musb_try_idle,
488
489 .set_vbus = omap2430_musb_set_vbus,
490
491 .enable = omap2430_musb_enable,
492 .disable = omap2430_musb_disable,
493 };
494
495 static u64 omap2430_dmamask = DMA_BIT_MASK(32);
496
497 static int omap2430_probe(struct platform_device *pdev)
498 {
499 struct resource musb_resources[3];
500 struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev);
501 struct omap_musb_board_data *data;
502 struct platform_device *musb;
503 struct omap2430_glue *glue;
504 struct device_node *np = pdev->dev.of_node;
505 struct musb_hdrc_config *config;
506 int ret = -ENOMEM;
507
508 glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
509 if (!glue) {
510 dev_err(&pdev->dev, "failed to allocate glue context\n");
511 goto err0;
512 }
513
514 musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
515 if (!musb) {
516 dev_err(&pdev->dev, "failed to allocate musb device\n");
517 goto err0;
518 }
519
520 musb->dev.parent = &pdev->dev;
521 musb->dev.dma_mask = &omap2430_dmamask;
522 musb->dev.coherent_dma_mask = omap2430_dmamask;
523
524 glue->dev = &pdev->dev;
525 glue->musb = musb;
526 glue->status = OMAP_MUSB_UNKNOWN;
527
528 if (np) {
529 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
530 if (!pdata) {
531 dev_err(&pdev->dev,
532 "failed to allocate musb platform data\n");
533 goto err2;
534 }
535
536 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
537 if (!data) {
538 dev_err(&pdev->dev,
539 "failed to allocate musb board data\n");
540 goto err2;
541 }
542
543 config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
544 if (!config) {
545 dev_err(&pdev->dev,
546 "failed to allocate musb hdrc config\n");
547 goto err2;
548 }
549
550 of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
551 of_property_read_u32(np, "interface-type",
552 (u32 *)&data->interface_type);
553 of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
554 of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
555 of_property_read_u32(np, "power", (u32 *)&pdata->power);
556 config->multipoint = of_property_read_bool(np, "multipoint");
557 pdata->has_mailbox = of_property_read_bool(np,
558 "ti,has-mailbox");
559
560 pdata->board_data = data;
561 pdata->config = config;
562 }
563
564 if (pdata->has_mailbox) {
565 glue->control_otghs = omap_get_control_dev();
566 if (IS_ERR(glue->control_otghs)) {
567 dev_vdbg(&pdev->dev, "Failed to get control device\n");
568 ret = PTR_ERR(glue->control_otghs);
569 goto err2;
570 }
571 } else {
572 glue->control_otghs = ERR_PTR(-ENODEV);
573 }
574 pdata->platform_ops = &omap2430_ops;
575
576 platform_set_drvdata(pdev, glue);
577
578 /*
579 * REVISIT if we ever have two instances of the wrapper, we will be
580 * in big trouble
581 */
582 _glue = glue;
583
584 INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work);
585
586 memset(musb_resources, 0x00, sizeof(*musb_resources) *
587 ARRAY_SIZE(musb_resources));
588
589 musb_resources[0].name = pdev->resource[0].name;
590 musb_resources[0].start = pdev->resource[0].start;
591 musb_resources[0].end = pdev->resource[0].end;
592 musb_resources[0].flags = pdev->resource[0].flags;
593
594 musb_resources[1].name = pdev->resource[1].name;
595 musb_resources[1].start = pdev->resource[1].start;
596 musb_resources[1].end = pdev->resource[1].end;
597 musb_resources[1].flags = pdev->resource[1].flags;
598
599 musb_resources[2].name = pdev->resource[2].name;
600 musb_resources[2].start = pdev->resource[2].start;
601 musb_resources[2].end = pdev->resource[2].end;
602 musb_resources[2].flags = pdev->resource[2].flags;
603
604 ret = platform_device_add_resources(musb, musb_resources,
605 ARRAY_SIZE(musb_resources));
606 if (ret) {
607 dev_err(&pdev->dev, "failed to add resources\n");
608 goto err2;
609 }
610
611 ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
612 if (ret) {
613 dev_err(&pdev->dev, "failed to add platform_data\n");
614 goto err2;
615 }
616
617 pm_runtime_enable(&pdev->dev);
618
619 ret = platform_device_add(musb);
620 if (ret) {
621 dev_err(&pdev->dev, "failed to register musb device\n");
622 goto err2;
623 }
624
625 return 0;
626
627 err2:
628 platform_device_put(musb);
629
630 err0:
631 return ret;
632 }
633
634 static int omap2430_remove(struct platform_device *pdev)
635 {
636 struct omap2430_glue *glue = platform_get_drvdata(pdev);
637
638 cancel_work_sync(&glue->omap_musb_mailbox_work);
639 platform_device_unregister(glue->musb);
640
641 return 0;
642 }
643
644 #ifdef CONFIG_PM
645
646 static int omap2430_runtime_suspend(struct device *dev)
647 {
648 struct omap2430_glue *glue = dev_get_drvdata(dev);
649 struct musb *musb = glue_to_musb(glue);
650
651 if (musb) {
652 musb->context.otg_interfsel = musb_readl(musb->mregs,
653 OTG_INTERFSEL);
654
655 omap2430_low_level_exit(musb);
656 phy_power_off(musb->phy);
657 }
658
659 return 0;
660 }
661
662 static int omap2430_runtime_resume(struct device *dev)
663 {
664 struct omap2430_glue *glue = dev_get_drvdata(dev);
665 struct musb *musb = glue_to_musb(glue);
666
667 if (musb) {
668 omap2430_low_level_init(musb);
669 musb_writel(musb->mregs, OTG_INTERFSEL,
670 musb->context.otg_interfsel);
671 phy_power_on(musb->phy);
672 }
673
674 return 0;
675 }
676
677 static struct dev_pm_ops omap2430_pm_ops = {
678 .runtime_suspend = omap2430_runtime_suspend,
679 .runtime_resume = omap2430_runtime_resume,
680 };
681
682 #define DEV_PM_OPS (&omap2430_pm_ops)
683 #else
684 #define DEV_PM_OPS NULL
685 #endif
686
687 #ifdef CONFIG_OF
688 static const struct of_device_id omap2430_id_table[] = {
689 {
690 .compatible = "ti,omap4-musb"
691 },
692 {
693 .compatible = "ti,omap3-musb"
694 },
695 {},
696 };
697 MODULE_DEVICE_TABLE(of, omap2430_id_table);
698 #endif
699
700 static struct platform_driver omap2430_driver = {
701 .probe = omap2430_probe,
702 .remove = omap2430_remove,
703 .driver = {
704 .name = "musb-omap2430",
705 .pm = DEV_PM_OPS,
706 .of_match_table = of_match_ptr(omap2430_id_table),
707 },
708 };
709
710 MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer");
711 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
712 MODULE_LICENSE("GPL v2");
713
714 static int __init omap2430_init(void)
715 {
716 return platform_driver_register(&omap2430_driver);
717 }
718 subsys_initcall(omap2430_init);
719
720 static void __exit omap2430_exit(void)
721 {
722 platform_driver_unregister(&omap2430_driver);
723 }
724 module_exit(omap2430_exit);
Linux kernel - Deliverables
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