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Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
[GitHub/mt8127/android_kernel_alcatel_ttab.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_to_hcd(musb));
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->platform_data;
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->platform_data;
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->xceiv = devm_usb_get_phy_by_phandle(dev->parent,
353 "usb-phy", 0);
354 else
355 musb->xceiv = devm_usb_get_phy_dev(dev, 0);
356
357 if (IS_ERR(musb->xceiv)) {
358 status = PTR_ERR(musb->xceiv);
359
360 if (status == -ENXIO)
361 return status;
362
363 pr_err("HS USB OTG: no transceiver configured\n");
364 return -EPROBE_DEFER;
365 }
366
367 musb->isr = omap2430_musb_interrupt;
368
369 status = pm_runtime_get_sync(dev);
370 if (status < 0) {
371 dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);
372 goto err1;
373 }
374
375 l = musb_readl(musb->mregs, OTG_INTERFSEL);
376
377 if (data->interface_type == MUSB_INTERFACE_UTMI) {
378 /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */
379 l &= ~ULPI_12PIN; /* Disable ULPI */
380 l |= UTMI_8BIT; /* Enable UTMI */
381 } else {
382 l |= ULPI_12PIN;
383 }
384
385 musb_writel(musb->mregs, OTG_INTERFSEL, l);
386
387 pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
388 "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
389 musb_readl(musb->mregs, OTG_REVISION),
390 musb_readl(musb->mregs, OTG_SYSCONFIG),
391 musb_readl(musb->mregs, OTG_SYSSTATUS),
392 musb_readl(musb->mregs, OTG_INTERFSEL),
393 musb_readl(musb->mregs, OTG_SIMENABLE));
394
395 setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
396
397 if (glue->status != OMAP_MUSB_UNKNOWN)
398 omap_musb_set_mailbox(glue);
399
400 usb_phy_init(musb->xceiv);
401
402 pm_runtime_put_noidle(musb->controller);
403 return 0;
404
405 err1:
406 return status;
407 }
408
409 static void omap2430_musb_enable(struct musb *musb)
410 {
411 u8 devctl;
412 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
413 struct device *dev = musb->controller;
414 struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
415 struct musb_hdrc_platform_data *pdata = dev->platform_data;
416 struct omap_musb_board_data *data = pdata->board_data;
417
418 switch (glue->status) {
419
420 case OMAP_MUSB_ID_GROUND:
421 omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST);
422 if (data->interface_type != MUSB_INTERFACE_UTMI)
423 break;
424 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
425 /* start the session */
426 devctl |= MUSB_DEVCTL_SESSION;
427 musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
428 while (musb_readb(musb->mregs, MUSB_DEVCTL) &
429 MUSB_DEVCTL_BDEVICE) {
430 cpu_relax();
431
432 if (time_after(jiffies, timeout)) {
433 dev_err(dev, "configured as A device timeout");
434 break;
435 }
436 }
437 break;
438
439 case OMAP_MUSB_VBUS_VALID:
440 omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
441 break;
442
443 default:
444 break;
445 }
446 }
447
448 static void omap2430_musb_disable(struct musb *musb)
449 {
450 struct device *dev = musb->controller;
451 struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
452
453 if (glue->status != OMAP_MUSB_UNKNOWN)
454 omap_control_usb_set_mode(glue->control_otghs,
455 USB_MODE_DISCONNECT);
456 }
457
458 static int omap2430_musb_exit(struct musb *musb)
459 {
460 del_timer_sync(&musb_idle_timer);
461
462 omap2430_low_level_exit(musb);
463
464 return 0;
465 }
466
467 static const struct musb_platform_ops omap2430_ops = {
468 .init = omap2430_musb_init,
469 .exit = omap2430_musb_exit,
470
471 .set_mode = omap2430_musb_set_mode,
472 .try_idle = omap2430_musb_try_idle,
473
474 .set_vbus = omap2430_musb_set_vbus,
475
476 .enable = omap2430_musb_enable,
477 .disable = omap2430_musb_disable,
478 };
479
480 static u64 omap2430_dmamask = DMA_BIT_MASK(32);
481
482 static int omap2430_probe(struct platform_device *pdev)
483 {
484 struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
485 struct omap_musb_board_data *data;
486 struct platform_device *musb;
487 struct omap2430_glue *glue;
488 struct device_node *np = pdev->dev.of_node;
489 struct musb_hdrc_config *config;
490 int ret = -ENOMEM;
491
492 glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
493 if (!glue) {
494 dev_err(&pdev->dev, "failed to allocate glue context\n");
495 goto err0;
496 }
497
498 musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
499 if (!musb) {
500 dev_err(&pdev->dev, "failed to allocate musb device\n");
501 goto err0;
502 }
503
504 musb->dev.parent = &pdev->dev;
505 musb->dev.dma_mask = &omap2430_dmamask;
506 musb->dev.coherent_dma_mask = omap2430_dmamask;
507
508 glue->dev = &pdev->dev;
509 glue->musb = musb;
510 glue->status = OMAP_MUSB_UNKNOWN;
511
512 if (np) {
513 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
514 if (!pdata) {
515 dev_err(&pdev->dev,
516 "failed to allocate musb platfrom data\n");
517 goto err2;
518 }
519
520 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
521 if (!data) {
522 dev_err(&pdev->dev,
523 "failed to allocate musb board data\n");
524 goto err2;
525 }
526
527 config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
528 if (!config) {
529 dev_err(&pdev->dev,
530 "failed to allocate musb hdrc config\n");
531 goto err2;
532 }
533
534 of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
535 of_property_read_u32(np, "interface-type",
536 (u32 *)&data->interface_type);
537 of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
538 of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
539 of_property_read_u32(np, "power", (u32 *)&pdata->power);
540 config->multipoint = of_property_read_bool(np, "multipoint");
541 pdata->has_mailbox = of_property_read_bool(np,
542 "ti,has-mailbox");
543
544 pdata->board_data = data;
545 pdata->config = config;
546 }
547
548 if (pdata->has_mailbox) {
549 glue->control_otghs = omap_get_control_dev();
550 if (IS_ERR(glue->control_otghs)) {
551 dev_vdbg(&pdev->dev, "Failed to get control device\n");
552 return -ENODEV;
553 }
554 } else {
555 glue->control_otghs = ERR_PTR(-ENODEV);
556 }
557 pdata->platform_ops = &omap2430_ops;
558
559 platform_set_drvdata(pdev, glue);
560
561 /*
562 * REVISIT if we ever have two instances of the wrapper, we will be
563 * in big trouble
564 */
565 _glue = glue;
566
567 INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work);
568
569 ret = platform_device_add_resources(musb, pdev->resource,
570 pdev->num_resources);
571 if (ret) {
572 dev_err(&pdev->dev, "failed to add resources\n");
573 goto err2;
574 }
575
576 ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
577 if (ret) {
578 dev_err(&pdev->dev, "failed to add platform_data\n");
579 goto err2;
580 }
581
582 pm_runtime_enable(&pdev->dev);
583
584 ret = platform_device_add(musb);
585 if (ret) {
586 dev_err(&pdev->dev, "failed to register musb device\n");
587 goto err2;
588 }
589
590 return 0;
591
592 err2:
593 platform_device_put(musb);
594
595 err0:
596 return ret;
597 }
598
599 static int omap2430_remove(struct platform_device *pdev)
600 {
601 struct omap2430_glue *glue = platform_get_drvdata(pdev);
602
603 cancel_work_sync(&glue->omap_musb_mailbox_work);
604 platform_device_unregister(glue->musb);
605
606 return 0;
607 }
608
609 #ifdef CONFIG_PM
610
611 static int omap2430_runtime_suspend(struct device *dev)
612 {
613 struct omap2430_glue *glue = dev_get_drvdata(dev);
614 struct musb *musb = glue_to_musb(glue);
615
616 if (musb) {
617 musb->context.otg_interfsel = musb_readl(musb->mregs,
618 OTG_INTERFSEL);
619
620 omap2430_low_level_exit(musb);
621 usb_phy_set_suspend(musb->xceiv, 1);
622 }
623
624 return 0;
625 }
626
627 static int omap2430_runtime_resume(struct device *dev)
628 {
629 struct omap2430_glue *glue = dev_get_drvdata(dev);
630 struct musb *musb = glue_to_musb(glue);
631
632 if (musb) {
633 omap2430_low_level_init(musb);
634 musb_writel(musb->mregs, OTG_INTERFSEL,
635 musb->context.otg_interfsel);
636
637 usb_phy_set_suspend(musb->xceiv, 0);
638 }
639
640 return 0;
641 }
642
643 static struct dev_pm_ops omap2430_pm_ops = {
644 .runtime_suspend = omap2430_runtime_suspend,
645 .runtime_resume = omap2430_runtime_resume,
646 };
647
648 #define DEV_PM_OPS (&omap2430_pm_ops)
649 #else
650 #define DEV_PM_OPS NULL
651 #endif
652
653 #ifdef CONFIG_OF
654 static const struct of_device_id omap2430_id_table[] = {
655 {
656 .compatible = "ti,omap4-musb"
657 },
658 {
659 .compatible = "ti,omap3-musb"
660 },
661 {},
662 };
663 MODULE_DEVICE_TABLE(of, omap2430_id_table);
664 #endif
665
666 static struct platform_driver omap2430_driver = {
667 .probe = omap2430_probe,
668 .remove = omap2430_remove,
669 .driver = {
670 .name = "musb-omap2430",
671 .pm = DEV_PM_OPS,
672 .of_match_table = of_match_ptr(omap2430_id_table),
673 },
674 };
675
676 MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer");
677 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
678 MODULE_LICENSE("GPL v2");
679
680 static int __init omap2430_init(void)
681 {
682 return platform_driver_register(&omap2430_driver);
683 }
684 subsys_initcall(omap2430_init);
685
686 static void __exit omap2430_exit(void)
687 {
688 platform_driver_unregister(&omap2430_driver);
689 }
690 module_exit(omap2430_exit);
kernel source for telekom puls (alcatel/mediatek)