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14#include <linux/module.h>
15#include <linux/types.h>
16#include <linux/spinlock.h>
17#include <linux/kernel.h>
18#include <linux/delay.h>
19#include <linux/errno.h>
20#include <linux/list.h>
21#include <linux/interrupt.h>
22#include <linux/io.h>
23#include <linux/usb.h>
24#include <linux/usb/hcd.h>
25#include <linux/of_address.h>
26#include <linux/of_irq.h>
27#include <linux/of_platform.h>
28#include <linux/of_gpio.h>
29#include <linux/slab.h>
30#include <soc/fsl/qe/qe.h>
31#include <asm/fsl_gtm.h>
32#include "fhci.h"
33
34void fhci_start_sof_timer(struct fhci_hcd *fhci)
35{
36 fhci_dbg(fhci, "-> %s\n", __func__);
37
38
39 out_be16(&fhci->pram->frame_num, 0);
40
41 out_be16(&fhci->regs->usb_ussft, 0);
42 setbits8(&fhci->regs->usb_usmod, USB_MODE_SFTE);
43
44 fhci_dbg(fhci, "<- %s\n", __func__);
45}
46
47void fhci_stop_sof_timer(struct fhci_hcd *fhci)
48{
49 fhci_dbg(fhci, "-> %s\n", __func__);
50
51 clrbits8(&fhci->regs->usb_usmod, USB_MODE_SFTE);
52 gtm_stop_timer16(fhci->timer);
53
54 fhci_dbg(fhci, "<- %s\n", __func__);
55}
56
57u16 fhci_get_sof_timer_count(struct fhci_usb *usb)
58{
59 return be16_to_cpu(in_be16(&usb->fhci->regs->usb_ussft) / 12);
60}
61
62
63static u32 endpoint_zero_init(struct fhci_usb *usb,
64 enum fhci_mem_alloc data_mem,
65 u32 ring_len)
66{
67 u32 rc;
68
69 rc = fhci_create_ep(usb, data_mem, ring_len);
70 if (rc)
71 return rc;
72
73
74 fhci_init_ep_registers(usb, usb->ep0, data_mem);
75
76 return 0;
77}
78
79
80void fhci_usb_enable_interrupt(struct fhci_usb *usb)
81{
82 struct fhci_hcd *fhci = usb->fhci;
83
84 if (usb->intr_nesting_cnt == 1) {
85
86 enable_irq(fhci_to_hcd(fhci)->irq);
87
88
89 out_be16(&usb->fhci->regs->usb_usber, 0xffff);
90 out_be16(&usb->fhci->regs->usb_usbmr, usb->saved_msk);
91
92
93 enable_irq(fhci->timer->irq);
94 } else if (usb->intr_nesting_cnt > 1)
95 fhci_info(fhci, "unbalanced USB interrupts nesting\n");
96 usb->intr_nesting_cnt--;
97}
98
99
100void fhci_usb_disable_interrupt(struct fhci_usb *usb)
101{
102 struct fhci_hcd *fhci = usb->fhci;
103
104 if (usb->intr_nesting_cnt == 0) {
105
106 disable_irq_nosync(fhci->timer->irq);
107
108
109 disable_irq_nosync(fhci_to_hcd(fhci)->irq);
110 out_be16(&usb->fhci->regs->usb_usbmr, 0);
111 }
112 usb->intr_nesting_cnt++;
113}
114
115
116static u32 fhci_usb_enable(struct fhci_hcd *fhci)
117{
118 struct fhci_usb *usb = fhci->usb_lld;
119
120 out_be16(&usb->fhci->regs->usb_usber, 0xffff);
121 out_be16(&usb->fhci->regs->usb_usbmr, usb->saved_msk);
122 setbits8(&usb->fhci->regs->usb_usmod, USB_MODE_EN);
123
124 mdelay(100);
125
126 return 0;
127}
128
129
130static u32 fhci_usb_disable(struct fhci_hcd *fhci)
131{
132 struct fhci_usb *usb = fhci->usb_lld;
133
134 fhci_usb_disable_interrupt(usb);
135 fhci_port_disable(fhci);
136
137
138 if (usb->port_status == FHCI_PORT_FULL ||
139 usb->port_status == FHCI_PORT_LOW)
140 fhci_device_disconnected_interrupt(fhci);
141
142 clrbits8(&usb->fhci->regs->usb_usmod, USB_MODE_EN);
143
144 return 0;
145}
146
147
148int fhci_ioports_check_bus_state(struct fhci_hcd *fhci)
149{
150 u8 bits = 0;
151
152
153 if (!gpio_get_value(fhci->gpios[GPIO_USBOE]))
154 return -1;
155
156
157 if (gpio_get_value(fhci->gpios[GPIO_USBRP]))
158 bits |= 0x2;
159
160
161 if (gpio_get_value(fhci->gpios[GPIO_USBRN]))
162 bits |= 0x1;
163
164 return bits;
165}
166
167static void fhci_mem_free(struct fhci_hcd *fhci)
168{
169 struct ed *ed;
170 struct ed *next_ed;
171 struct td *td;
172 struct td *next_td;
173
174 list_for_each_entry_safe(ed, next_ed, &fhci->empty_eds, node) {
175 list_del(&ed->node);
176 kfree(ed);
177 }
178
179 list_for_each_entry_safe(td, next_td, &fhci->empty_tds, node) {
180 list_del(&td->node);
181 kfree(td);
182 }
183
184 kfree(fhci->vroot_hub);
185 fhci->vroot_hub = NULL;
186
187 kfree(fhci->hc_list);
188 fhci->hc_list = NULL;
189}
190
191static int fhci_mem_init(struct fhci_hcd *fhci)
192{
193 int i;
194
195 fhci->hc_list = kzalloc(sizeof(*fhci->hc_list), GFP_KERNEL);
196 if (!fhci->hc_list)
197 goto err;
198
199 INIT_LIST_HEAD(&fhci->hc_list->ctrl_list);
200 INIT_LIST_HEAD(&fhci->hc_list->bulk_list);
201 INIT_LIST_HEAD(&fhci->hc_list->iso_list);
202 INIT_LIST_HEAD(&fhci->hc_list->intr_list);
203 INIT_LIST_HEAD(&fhci->hc_list->done_list);
204
205 fhci->vroot_hub = kzalloc(sizeof(*fhci->vroot_hub), GFP_KERNEL);
206 if (!fhci->vroot_hub)
207 goto err;
208
209 INIT_LIST_HEAD(&fhci->empty_eds);
210 INIT_LIST_HEAD(&fhci->empty_tds);
211
212
213 fhci_tasklet.data = (unsigned long)fhci;
214 fhci->process_done_task = &fhci_tasklet;
215
216 for (i = 0; i < MAX_TDS; i++) {
217 struct td *td;
218
219 td = kmalloc(sizeof(*td), GFP_KERNEL);
220 if (!td)
221 goto err;
222 fhci_recycle_empty_td(fhci, td);
223 }
224 for (i = 0; i < MAX_EDS; i++) {
225 struct ed *ed;
226
227 ed = kmalloc(sizeof(*ed), GFP_KERNEL);
228 if (!ed)
229 goto err;
230 fhci_recycle_empty_ed(fhci, ed);
231 }
232
233 fhci->active_urbs = 0;
234 return 0;
235err:
236 fhci_mem_free(fhci);
237 return -ENOMEM;
238}
239
240
241static void fhci_usb_free(void *lld)
242{
243 struct fhci_usb *usb = lld;
244 struct fhci_hcd *fhci;
245
246 if (usb) {
247 fhci = usb->fhci;
248 fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF);
249 fhci_ep0_free(usb);
250 kfree(usb->actual_frame);
251 kfree(usb);
252 }
253}
254
255
256static int fhci_usb_init(struct fhci_hcd *fhci)
257{
258 struct fhci_usb *usb = fhci->usb_lld;
259
260 memset_io(usb->fhci->pram, 0, FHCI_PRAM_SIZE);
261
262 usb->port_status = FHCI_PORT_DISABLED;
263 usb->max_frame_usage = FRAME_TIME_USAGE;
264 usb->sw_transaction_time = SW_FIX_TIME_BETWEEN_TRANSACTION;
265
266 usb->actual_frame = kzalloc(sizeof(*usb->actual_frame), GFP_KERNEL);
267 if (!usb->actual_frame) {
268 fhci_usb_free(usb);
269 return -ENOMEM;
270 }
271
272 INIT_LIST_HEAD(&usb->actual_frame->tds_list);
273
274
275 out_be16(&fhci->pram->frame_num, 0);
276
277
278 out_be32(&fhci->pram->rx_state, 0);
279
280
281 usb->saved_msk = (USB_E_TXB_MASK |
282 USB_E_TXE1_MASK |
283 USB_E_IDLE_MASK |
284 USB_E_RESET_MASK | USB_E_SFT_MASK | USB_E_MSF_MASK);
285
286 out_8(&usb->fhci->regs->usb_usmod, USB_MODE_HOST | USB_MODE_EN);
287
288
289 out_be16(&usb->fhci->regs->usb_usbmr, 0);
290
291
292 out_be16(&usb->fhci->regs->usb_usber, 0xffff);
293
294 if (endpoint_zero_init(usb, DEFAULT_DATA_MEM, DEFAULT_RING_LEN) != 0) {
295 fhci_usb_free(usb);
296 return -EINVAL;
297 }
298
299 return 0;
300}
301
302
303static struct fhci_usb *fhci_create_lld(struct fhci_hcd *fhci)
304{
305 struct fhci_usb *usb;
306
307
308 usb = kzalloc(sizeof(*usb), GFP_KERNEL);
309 if (!usb)
310 return NULL;
311
312 usb->fhci = fhci;
313 usb->hc_list = fhci->hc_list;
314 usb->vroot_hub = fhci->vroot_hub;
315
316 usb->transfer_confirm = fhci_transfer_confirm_callback;
317
318 return usb;
319}
320
321static int fhci_start(struct usb_hcd *hcd)
322{
323 int ret;
324 struct fhci_hcd *fhci = hcd_to_fhci(hcd);
325
326 ret = fhci_mem_init(fhci);
327 if (ret) {
328 fhci_err(fhci, "failed to allocate memory\n");
329 goto err;
330 }
331
332 fhci->usb_lld = fhci_create_lld(fhci);
333 if (!fhci->usb_lld) {
334 fhci_err(fhci, "low level driver config failed\n");
335 ret = -ENOMEM;
336 goto err;
337 }
338
339 ret = fhci_usb_init(fhci);
340 if (ret) {
341 fhci_err(fhci, "low level driver initialize failed\n");
342 goto err;
343 }
344
345 spin_lock_init(&fhci->lock);
346
347
348 fhci->vroot_hub->dev_num = 1;
349 fhci->vroot_hub->hub.wHubStatus = 0;
350 fhci->vroot_hub->hub.wHubChange = 0;
351 fhci->vroot_hub->port.wPortStatus = 0;
352 fhci->vroot_hub->port.wPortChange = 0;
353
354 hcd->state = HC_STATE_RUNNING;
355
356
357
358
359
360
361
362
363
364
365 fhci_usb_enable(fhci);
366 return 0;
367err:
368 fhci_mem_free(fhci);
369 return ret;
370}
371
372static void fhci_stop(struct usb_hcd *hcd)
373{
374 struct fhci_hcd *fhci = hcd_to_fhci(hcd);
375
376 fhci_usb_disable_interrupt(fhci->usb_lld);
377 fhci_usb_disable(fhci);
378
379 fhci_usb_free(fhci->usb_lld);
380 fhci->usb_lld = NULL;
381 fhci_mem_free(fhci);
382}
383
384static int fhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
385 gfp_t mem_flags)
386{
387 struct fhci_hcd *fhci = hcd_to_fhci(hcd);
388 u32 pipe = urb->pipe;
389 int ret;
390 int i;
391 int size = 0;
392 struct urb_priv *urb_priv;
393 unsigned long flags;
394
395 switch (usb_pipetype(pipe)) {
396 case PIPE_CONTROL:
397
398 size = 2;
399 case PIPE_BULK:
400
401 size += urb->transfer_buffer_length / 4096;
402
403 if ((urb->transfer_buffer_length % 4096) != 0)
404 size++;
405
406 if (size == 0)
407 size++;
408 else if ((urb->transfer_flags & URB_ZERO_PACKET) != 0
409 && (urb->transfer_buffer_length
410 % usb_maxpacket(urb->dev, pipe,
411 usb_pipeout(pipe))) != 0)
412 size++;
413 break;
414 case PIPE_ISOCHRONOUS:
415 size = urb->number_of_packets;
416 if (size <= 0)
417 return -EINVAL;
418 for (i = 0; i < urb->number_of_packets; i++) {
419 urb->iso_frame_desc[i].actual_length = 0;
420 urb->iso_frame_desc[i].status = (u32) (-EXDEV);
421 }
422 break;
423 case PIPE_INTERRUPT:
424 size = 1;
425 }
426
427
428 urb_priv = kzalloc(sizeof(*urb_priv), mem_flags);
429 if (!urb_priv)
430 return -ENOMEM;
431
432
433 urb_priv->tds = kcalloc(size, sizeof(*urb_priv->tds), mem_flags);
434 if (!urb_priv->tds) {
435 kfree(urb_priv);
436 return -ENOMEM;
437 }
438
439 spin_lock_irqsave(&fhci->lock, flags);
440
441 ret = usb_hcd_link_urb_to_ep(hcd, urb);
442 if (ret)
443 goto err;
444
445
446 urb_priv->num_of_tds = size;
447
448 urb->status = -EINPROGRESS;
449 urb->actual_length = 0;
450 urb->error_count = 0;
451 urb->hcpriv = urb_priv;
452
453 fhci_queue_urb(fhci, urb);
454err:
455 if (ret) {
456 kfree(urb_priv->tds);
457 kfree(urb_priv);
458 }
459 spin_unlock_irqrestore(&fhci->lock, flags);
460 return ret;
461}
462
463
464static int fhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
465{
466 struct fhci_hcd *fhci = hcd_to_fhci(hcd);
467 struct fhci_usb *usb = fhci->usb_lld;
468 int ret = -EINVAL;
469 unsigned long flags;
470
471 if (!urb || !urb->dev || !urb->dev->bus)
472 goto out;
473
474 spin_lock_irqsave(&fhci->lock, flags);
475
476 ret = usb_hcd_check_unlink_urb(hcd, urb, status);
477 if (ret)
478 goto out2;
479
480 if (usb->port_status != FHCI_PORT_DISABLED) {
481 struct urb_priv *urb_priv;
482
483
484
485
486
487 urb_priv = urb->hcpriv;
488
489 if (!urb_priv || (urb_priv->state == URB_DEL))
490 goto out2;
491
492 urb_priv->state = URB_DEL;
493
494
495 urb_priv->ed->state = FHCI_ED_URB_DEL;
496 } else {
497 fhci_urb_complete_free(fhci, urb);
498 }
499
500out2:
501 spin_unlock_irqrestore(&fhci->lock, flags);
502out:
503 return ret;
504}
505
506static void fhci_endpoint_disable(struct usb_hcd *hcd,
507 struct usb_host_endpoint *ep)
508{
509 struct fhci_hcd *fhci;
510 struct ed *ed;
511 unsigned long flags;
512
513 fhci = hcd_to_fhci(hcd);
514 spin_lock_irqsave(&fhci->lock, flags);
515 ed = ep->hcpriv;
516 if (ed) {
517 while (ed->td_head != NULL) {
518 struct td *td = fhci_remove_td_from_ed(ed);
519 fhci_urb_complete_free(fhci, td->urb);
520 }
521 fhci_recycle_empty_ed(fhci, ed);
522 ep->hcpriv = NULL;
523 }
524 spin_unlock_irqrestore(&fhci->lock, flags);
525}
526
527static int fhci_get_frame_number(struct usb_hcd *hcd)
528{
529 struct fhci_hcd *fhci = hcd_to_fhci(hcd);
530
531 return get_frame_num(fhci);
532}
533
534static const struct hc_driver fhci_driver = {
535 .description = "fsl,usb-fhci",
536 .product_desc = "FHCI HOST Controller",
537 .hcd_priv_size = sizeof(struct fhci_hcd),
538
539
540 .irq = fhci_irq,
541 .flags = HCD_USB11 | HCD_MEMORY,
542
543
544 .start = fhci_start,
545 .stop = fhci_stop,
546
547
548 .urb_enqueue = fhci_urb_enqueue,
549 .urb_dequeue = fhci_urb_dequeue,
550 .endpoint_disable = fhci_endpoint_disable,
551
552
553 .get_frame_number = fhci_get_frame_number,
554
555
556 .hub_status_data = fhci_hub_status_data,
557 .hub_control = fhci_hub_control,
558};
559
560static int of_fhci_probe(struct platform_device *ofdev)
561{
562 struct device *dev = &ofdev->dev;
563 struct device_node *node = dev->of_node;
564 struct usb_hcd *hcd;
565 struct fhci_hcd *fhci;
566 struct resource usb_regs;
567 unsigned long pram_addr;
568 unsigned int usb_irq;
569 const char *sprop;
570 const u32 *iprop;
571 int size;
572 int ret;
573 int i;
574 int j;
575
576 if (usb_disabled())
577 return -ENODEV;
578
579 sprop = of_get_property(node, "mode", NULL);
580 if (sprop && strcmp(sprop, "host"))
581 return -ENODEV;
582
583 hcd = usb_create_hcd(&fhci_driver, dev, dev_name(dev));
584 if (!hcd) {
585 dev_err(dev, "could not create hcd\n");
586 return -ENOMEM;
587 }
588
589 fhci = hcd_to_fhci(hcd);
590 hcd->self.controller = dev;
591 dev_set_drvdata(dev, hcd);
592
593 iprop = of_get_property(node, "hub-power-budget", &size);
594 if (iprop && size == sizeof(*iprop))
595 hcd->power_budget = *iprop;
596
597
598 ret = of_address_to_resource(node, 0, &usb_regs);
599 if (ret) {
600 dev_err(dev, "could not get regs\n");
601 goto err_regs;
602 }
603
604 hcd->regs = ioremap(usb_regs.start, resource_size(&usb_regs));
605 if (!hcd->regs) {
606 dev_err(dev, "could not ioremap regs\n");
607 ret = -ENOMEM;
608 goto err_regs;
609 }
610 fhci->regs = hcd->regs;
611
612
613 iprop = of_get_property(node, "reg", &size);
614 if (!iprop || size < sizeof(*iprop) * 4) {
615 dev_err(dev, "can't get pram offset\n");
616 ret = -EINVAL;
617 goto err_pram;
618 }
619
620 pram_addr = cpm_muram_alloc(FHCI_PRAM_SIZE, 64);
621 if (IS_ERR_VALUE(pram_addr)) {
622 dev_err(dev, "failed to allocate usb pram\n");
623 ret = -ENOMEM;
624 goto err_pram;
625 }
626
627 qe_issue_cmd(QE_ASSIGN_PAGE_TO_DEVICE, QE_CR_SUBBLOCK_USB,
628 QE_CR_PROTOCOL_UNSPECIFIED, pram_addr);
629 fhci->pram = cpm_muram_addr(pram_addr);
630
631
632 for (i = 0; i < NUM_GPIOS; i++) {
633 int gpio;
634 enum of_gpio_flags flags;
635
636 gpio = of_get_gpio_flags(node, i, &flags);
637 fhci->gpios[i] = gpio;
638 fhci->alow_gpios[i] = flags & OF_GPIO_ACTIVE_LOW;
639
640 if (!gpio_is_valid(gpio)) {
641 if (i < GPIO_SPEED) {
642 dev_err(dev, "incorrect GPIO%d: %d\n",
643 i, gpio);
644 goto err_gpios;
645 } else {
646 dev_info(dev, "assuming board doesn't have "
647 "%s gpio\n", i == GPIO_SPEED ?
648 "speed" : "power");
649 continue;
650 }
651 }
652
653 ret = gpio_request(gpio, dev_name(dev));
654 if (ret) {
655 dev_err(dev, "failed to request gpio %d", i);
656 goto err_gpios;
657 }
658
659 if (i >= GPIO_SPEED) {
660 ret = gpio_direction_output(gpio, 0);
661 if (ret) {
662 dev_err(dev, "failed to set gpio %d as "
663 "an output\n", i);
664 i++;
665 goto err_gpios;
666 }
667 }
668 }
669
670 for (j = 0; j < NUM_PINS; j++) {
671 fhci->pins[j] = qe_pin_request(node, j);
672 if (IS_ERR(fhci->pins[j])) {
673 ret = PTR_ERR(fhci->pins[j]);
674 dev_err(dev, "can't get pin %d: %d\n", j, ret);
675 goto err_pins;
676 }
677 }
678
679
680 fhci->timer = gtm_get_timer16();
681 if (IS_ERR(fhci->timer)) {
682 ret = PTR_ERR(fhci->timer);
683 dev_err(dev, "failed to request qe timer: %i", ret);
684 goto err_get_timer;
685 }
686
687 ret = request_irq(fhci->timer->irq, fhci_frame_limit_timer_irq,
688 0, "qe timer (usb)", hcd);
689 if (ret) {
690 dev_err(dev, "failed to request timer irq");
691 goto err_timer_irq;
692 }
693
694
695 usb_irq = irq_of_parse_and_map(node, 0);
696 if (usb_irq == NO_IRQ) {
697 dev_err(dev, "could not get usb irq\n");
698 ret = -EINVAL;
699 goto err_usb_irq;
700 }
701
702
703 sprop = of_get_property(node, "fsl,fullspeed-clock", NULL);
704 if (sprop) {
705 fhci->fullspeed_clk = qe_clock_source(sprop);
706 if (fhci->fullspeed_clk == QE_CLK_DUMMY) {
707 dev_err(dev, "wrong fullspeed-clock\n");
708 ret = -EINVAL;
709 goto err_clocks;
710 }
711 }
712
713 sprop = of_get_property(node, "fsl,lowspeed-clock", NULL);
714 if (sprop) {
715 fhci->lowspeed_clk = qe_clock_source(sprop);
716 if (fhci->lowspeed_clk == QE_CLK_DUMMY) {
717 dev_err(dev, "wrong lowspeed-clock\n");
718 ret = -EINVAL;
719 goto err_clocks;
720 }
721 }
722
723 if (fhci->fullspeed_clk == QE_CLK_NONE &&
724 fhci->lowspeed_clk == QE_CLK_NONE) {
725 dev_err(dev, "no clocks specified\n");
726 ret = -EINVAL;
727 goto err_clocks;
728 }
729
730 dev_info(dev, "at 0x%p, irq %d\n", hcd->regs, usb_irq);
731
732 fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF);
733
734
735 if (fhci->fullspeed_clk != QE_CLK_NONE) {
736 fhci_config_transceiver(fhci, FHCI_PORT_FULL);
737 qe_usb_clock_set(fhci->fullspeed_clk, USB_CLOCK);
738 } else {
739 fhci_config_transceiver(fhci, FHCI_PORT_LOW);
740 qe_usb_clock_set(fhci->lowspeed_clk, USB_CLOCK >> 3);
741 }
742
743
744 out_be16(&fhci->regs->usb_usber, 0xffff);
745 out_be16(&fhci->regs->usb_usbmr, 0);
746
747 ret = usb_add_hcd(hcd, usb_irq, 0);
748 if (ret < 0)
749 goto err_add_hcd;
750
751 device_wakeup_enable(hcd->self.controller);
752
753 fhci_dfs_create(fhci);
754
755 return 0;
756
757err_add_hcd:
758err_clocks:
759 irq_dispose_mapping(usb_irq);
760err_usb_irq:
761 free_irq(fhci->timer->irq, hcd);
762err_timer_irq:
763 gtm_put_timer16(fhci->timer);
764err_get_timer:
765err_pins:
766 while (--j >= 0)
767 qe_pin_free(fhci->pins[j]);
768err_gpios:
769 while (--i >= 0) {
770 if (gpio_is_valid(fhci->gpios[i]))
771 gpio_free(fhci->gpios[i]);
772 }
773 cpm_muram_free(pram_addr);
774err_pram:
775 iounmap(hcd->regs);
776err_regs:
777 usb_put_hcd(hcd);
778 return ret;
779}
780
781static int fhci_remove(struct device *dev)
782{
783 struct usb_hcd *hcd = dev_get_drvdata(dev);
784 struct fhci_hcd *fhci = hcd_to_fhci(hcd);
785 int i;
786 int j;
787
788 usb_remove_hcd(hcd);
789 free_irq(fhci->timer->irq, hcd);
790 gtm_put_timer16(fhci->timer);
791 cpm_muram_free(cpm_muram_offset(fhci->pram));
792 for (i = 0; i < NUM_GPIOS; i++) {
793 if (!gpio_is_valid(fhci->gpios[i]))
794 continue;
795 gpio_free(fhci->gpios[i]);
796 }
797 for (j = 0; j < NUM_PINS; j++)
798 qe_pin_free(fhci->pins[j]);
799 fhci_dfs_destroy(fhci);
800 usb_put_hcd(hcd);
801 return 0;
802}
803
804static int of_fhci_remove(struct platform_device *ofdev)
805{
806 return fhci_remove(&ofdev->dev);
807}
808
809static const struct of_device_id of_fhci_match[] = {
810 { .compatible = "fsl,mpc8323-qe-usb", },
811 {},
812};
813MODULE_DEVICE_TABLE(of, of_fhci_match);
814
815static struct platform_driver of_fhci_driver = {
816 .driver = {
817 .name = "fsl,usb-fhci",
818 .of_match_table = of_fhci_match,
819 },
820 .probe = of_fhci_probe,
821 .remove = of_fhci_remove,
822};
823
824module_platform_driver(of_fhci_driver);
825
826MODULE_DESCRIPTION("USB Freescale Host Controller Interface Driver");
827MODULE_AUTHOR("Shlomi Gridish <gridish@freescale.com>, "
828 "Jerry Huang <Chang-Ming.Huang@freescale.com>, "
829 "Anton Vorontsov <avorontsov@ru.mvista.com>");
830MODULE_LICENSE("GPL");
831
