Commit | Line | Data |
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550a7375 FB |
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 | |
550a7375 FB |
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> | |
550a7375 FB |
30 | #include <linux/init.h> |
31 | #include <linux/list.h> | |
32 | #include <linux/clk.h> | |
33 | #include <linux/io.h> | |
dc09886b FB |
34 | #include <linux/platform_device.h> |
35 | #include <linux/dma-mapping.h> | |
550a7375 | 36 | |
550a7375 FB |
37 | #include "musb_core.h" |
38 | #include "omap2430.h" | |
39 | ||
a3cee12a FB |
40 | struct omap2430_glue { |
41 | struct device *dev; | |
42 | struct platform_device *musb; | |
03491761 | 43 | struct clk *clk; |
a3cee12a | 44 | }; |
c20aebb9 | 45 | #define glue_to_musb(g) platform_get_drvdata(g->musb) |
a3cee12a | 46 | |
550a7375 FB |
47 | static struct timer_list musb_idle_timer; |
48 | ||
49 | static void musb_do_idle(unsigned long _musb) | |
50 | { | |
51 | struct musb *musb = (void *)_musb; | |
52 | unsigned long flags; | |
eef767b7 | 53 | #ifdef CONFIG_USB_MUSB_HDRC_HCD |
550a7375 | 54 | u8 power; |
eef767b7 | 55 | #endif |
550a7375 FB |
56 | u8 devctl; |
57 | ||
550a7375 FB |
58 | spin_lock_irqsave(&musb->lock, flags); |
59 | ||
84e250ff | 60 | switch (musb->xceiv->state) { |
550a7375 | 61 | case OTG_STATE_A_WAIT_BCON: |
550a7375 FB |
62 | |
63 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
64 | if (devctl & MUSB_DEVCTL_BDEVICE) { | |
84e250ff | 65 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 FB |
66 | MUSB_DEV_MODE(musb); |
67 | } else { | |
84e250ff | 68 | musb->xceiv->state = OTG_STATE_A_IDLE; |
550a7375 FB |
69 | MUSB_HST_MODE(musb); |
70 | } | |
71 | break; | |
72 | #ifdef CONFIG_USB_MUSB_HDRC_HCD | |
73 | case OTG_STATE_A_SUSPEND: | |
74 | /* finish RESUME signaling? */ | |
75 | if (musb->port1_status & MUSB_PORT_STAT_RESUME) { | |
76 | power = musb_readb(musb->mregs, MUSB_POWER); | |
77 | power &= ~MUSB_POWER_RESUME; | |
78 | DBG(1, "root port resume stopped, power %02x\n", power); | |
79 | musb_writeb(musb->mregs, MUSB_POWER, power); | |
80 | musb->is_active = 1; | |
81 | musb->port1_status &= ~(USB_PORT_STAT_SUSPEND | |
82 | | MUSB_PORT_STAT_RESUME); | |
83 | musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16; | |
84 | usb_hcd_poll_rh_status(musb_to_hcd(musb)); | |
85 | /* NOTE: it might really be A_WAIT_BCON ... */ | |
84e250ff | 86 | musb->xceiv->state = OTG_STATE_A_HOST; |
550a7375 FB |
87 | } |
88 | break; | |
89 | #endif | |
90 | #ifdef CONFIG_USB_MUSB_HDRC_HCD | |
91 | case OTG_STATE_A_HOST: | |
92 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
93 | if (devctl & MUSB_DEVCTL_BDEVICE) | |
84e250ff | 94 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 | 95 | else |
84e250ff | 96 | musb->xceiv->state = OTG_STATE_A_WAIT_BCON; |
550a7375 FB |
97 | #endif |
98 | default: | |
99 | break; | |
100 | } | |
101 | spin_unlock_irqrestore(&musb->lock, flags); | |
102 | } | |
103 | ||
104 | ||
743411b3 | 105 | static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout) |
550a7375 FB |
106 | { |
107 | unsigned long default_timeout = jiffies + msecs_to_jiffies(3); | |
108 | static unsigned long last_timer; | |
109 | ||
110 | if (timeout == 0) | |
111 | timeout = default_timeout; | |
112 | ||
113 | /* Never idle if active, or when VBUS timeout is not set as host */ | |
114 | if (musb->is_active || ((musb->a_wait_bcon == 0) | |
84e250ff | 115 | && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) { |
550a7375 FB |
116 | DBG(4, "%s active, deleting timer\n", otg_state_string(musb)); |
117 | del_timer(&musb_idle_timer); | |
118 | last_timer = jiffies; | |
119 | return; | |
120 | } | |
121 | ||
122 | if (time_after(last_timer, timeout)) { | |
123 | if (!timer_pending(&musb_idle_timer)) | |
124 | last_timer = timeout; | |
125 | else { | |
126 | DBG(4, "Longer idle timer already pending, ignoring\n"); | |
127 | return; | |
128 | } | |
129 | } | |
130 | last_timer = timeout; | |
131 | ||
132 | DBG(4, "%s inactive, for idle timer for %lu ms\n", | |
133 | otg_state_string(musb), | |
134 | (unsigned long)jiffies_to_msecs(timeout - jiffies)); | |
135 | mod_timer(&musb_idle_timer, timeout); | |
136 | } | |
137 | ||
743411b3 | 138 | static void omap2430_musb_set_vbus(struct musb *musb, int is_on) |
550a7375 FB |
139 | { |
140 | u8 devctl; | |
594632ef HH |
141 | unsigned long timeout = jiffies + msecs_to_jiffies(1000); |
142 | int ret = 1; | |
550a7375 FB |
143 | /* HDRC controls CPEN, but beware current surges during device |
144 | * connect. They can trigger transient overcurrent conditions | |
145 | * that must be ignored. | |
146 | */ | |
147 | ||
148 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
149 | ||
150 | if (is_on) { | |
594632ef HH |
151 | if (musb->xceiv->state == OTG_STATE_A_IDLE) { |
152 | /* start the session */ | |
153 | devctl |= MUSB_DEVCTL_SESSION; | |
154 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
155 | /* | |
156 | * Wait for the musb to set as A device to enable the | |
157 | * VBUS | |
158 | */ | |
159 | while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) { | |
160 | ||
161 | cpu_relax(); | |
162 | ||
163 | if (time_after(jiffies, timeout)) { | |
164 | dev_err(musb->controller, | |
165 | "configured as A device timeout"); | |
166 | ret = -EINVAL; | |
167 | break; | |
168 | } | |
169 | } | |
170 | ||
171 | if (ret && musb->xceiv->set_vbus) | |
172 | otg_set_vbus(musb->xceiv, 1); | |
173 | } else { | |
174 | musb->is_active = 1; | |
175 | musb->xceiv->default_a = 1; | |
176 | musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; | |
177 | devctl |= MUSB_DEVCTL_SESSION; | |
178 | MUSB_HST_MODE(musb); | |
179 | } | |
550a7375 FB |
180 | } else { |
181 | musb->is_active = 0; | |
182 | ||
183 | /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and | |
184 | * jumping right to B_IDLE... | |
185 | */ | |
186 | ||
84e250ff DB |
187 | musb->xceiv->default_a = 0; |
188 | musb->xceiv->state = OTG_STATE_B_IDLE; | |
550a7375 FB |
189 | devctl &= ~MUSB_DEVCTL_SESSION; |
190 | ||
191 | MUSB_DEV_MODE(musb); | |
192 | } | |
193 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
194 | ||
195 | DBG(1, "VBUS %s, devctl %02x " | |
196 | /* otg %3x conf %08x prcm %08x */ "\n", | |
197 | otg_state_string(musb), | |
198 | musb_readb(musb->mregs, MUSB_DEVCTL)); | |
199 | } | |
550a7375 | 200 | |
743411b3 | 201 | static int omap2430_musb_set_mode(struct musb *musb, u8 musb_mode) |
550a7375 FB |
202 | { |
203 | u8 devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
204 | ||
205 | devctl |= MUSB_DEVCTL_SESSION; | |
206 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
207 | ||
96a274d1 | 208 | return 0; |
550a7375 FB |
209 | } |
210 | ||
c20aebb9 FB |
211 | static inline void omap2430_low_level_exit(struct musb *musb) |
212 | { | |
213 | u32 l; | |
214 | ||
215 | /* in any role */ | |
216 | l = musb_readl(musb->mregs, OTG_FORCESTDBY); | |
217 | l |= ENABLEFORCE; /* enable MSTANDBY */ | |
218 | musb_writel(musb->mregs, OTG_FORCESTDBY, l); | |
219 | ||
220 | l = musb_readl(musb->mregs, OTG_SYSCONFIG); | |
221 | l |= ENABLEWAKEUP; /* enable wakeup */ | |
222 | musb_writel(musb->mregs, OTG_SYSCONFIG, l); | |
223 | } | |
224 | ||
225 | static inline void omap2430_low_level_init(struct musb *musb) | |
226 | { | |
227 | u32 l; | |
228 | ||
229 | l = musb_readl(musb->mregs, OTG_SYSCONFIG); | |
230 | l &= ~ENABLEWAKEUP; /* disable wakeup */ | |
231 | musb_writel(musb->mregs, OTG_SYSCONFIG, l); | |
232 | ||
233 | l = musb_readl(musb->mregs, OTG_FORCESTDBY); | |
234 | l &= ~ENABLEFORCE; /* disable MSTANDBY */ | |
235 | musb_writel(musb->mregs, OTG_FORCESTDBY, l); | |
236 | } | |
237 | ||
594632ef HH |
238 | /* blocking notifier support */ |
239 | static int musb_otg_notifications(struct notifier_block *nb, | |
240 | unsigned long event, void *unused) | |
241 | { | |
242 | struct musb *musb = container_of(nb, struct musb, nb); | |
243 | struct device *dev = musb->controller; | |
244 | struct musb_hdrc_platform_data *pdata = dev->platform_data; | |
245 | struct omap_musb_board_data *data = pdata->board_data; | |
246 | ||
247 | switch (event) { | |
248 | case USB_EVENT_ID: | |
249 | DBG(4, "ID GND\n"); | |
250 | ||
251 | if (is_otg_enabled(musb)) { | |
252 | #ifdef CONFIG_USB_GADGET_MUSB_HDRC | |
253 | if (musb->gadget_driver) { | |
254 | otg_init(musb->xceiv); | |
255 | ||
256 | if (data->interface_type == | |
257 | MUSB_INTERFACE_UTMI) | |
258 | omap2430_musb_set_vbus(musb, 1); | |
259 | ||
260 | } | |
261 | #endif | |
262 | } else { | |
263 | otg_init(musb->xceiv); | |
264 | if (data->interface_type == | |
265 | MUSB_INTERFACE_UTMI) | |
266 | omap2430_musb_set_vbus(musb, 1); | |
267 | } | |
268 | break; | |
269 | ||
270 | case USB_EVENT_VBUS: | |
271 | DBG(4, "VBUS Connect\n"); | |
272 | ||
273 | otg_init(musb->xceiv); | |
274 | break; | |
275 | ||
276 | case USB_EVENT_NONE: | |
277 | DBG(4, "VBUS Disconnect\n"); | |
278 | ||
279 | if (data->interface_type == MUSB_INTERFACE_UTMI) { | |
280 | if (musb->xceiv->set_vbus) | |
281 | otg_set_vbus(musb->xceiv, 0); | |
282 | } | |
283 | otg_shutdown(musb->xceiv); | |
284 | break; | |
285 | default: | |
286 | DBG(4, "ID float\n"); | |
287 | return NOTIFY_DONE; | |
288 | } | |
289 | ||
290 | return NOTIFY_OK; | |
291 | } | |
292 | ||
743411b3 | 293 | static int omap2430_musb_init(struct musb *musb) |
550a7375 | 294 | { |
594632ef | 295 | u32 l, status = 0; |
ea65df57 HK |
296 | struct device *dev = musb->controller; |
297 | struct musb_hdrc_platform_data *plat = dev->platform_data; | |
298 | struct omap_musb_board_data *data = plat->board_data; | |
550a7375 | 299 | |
84e250ff DB |
300 | /* We require some kind of external transceiver, hooked |
301 | * up through ULPI. TWL4030-family PMICs include one, | |
302 | * which needs a driver, drivers aren't always needed. | |
303 | */ | |
304 | musb->xceiv = otg_get_transceiver(); | |
305 | if (!musb->xceiv) { | |
306 | pr_err("HS USB OTG: no transceiver configured\n"); | |
307 | return -ENODEV; | |
308 | } | |
309 | ||
c20aebb9 | 310 | omap2430_low_level_init(musb); |
550a7375 | 311 | |
8573e6a6 | 312 | l = musb_readl(musb->mregs, OTG_SYSCONFIG); |
550a7375 FB |
313 | l &= ~ENABLEWAKEUP; /* disable wakeup */ |
314 | l &= ~NOSTDBY; /* remove possible nostdby */ | |
315 | l |= SMARTSTDBY; /* enable smart standby */ | |
316 | l &= ~AUTOIDLE; /* disable auto idle */ | |
317 | l &= ~NOIDLE; /* remove possible noidle */ | |
318 | l |= SMARTIDLE; /* enable smart idle */ | |
9a4b5e36 NM |
319 | /* |
320 | * MUSB AUTOIDLE don't work in 3430. | |
321 | * Workaround by Richard Woodruff/TI | |
322 | */ | |
323 | if (!cpu_is_omap3430()) | |
324 | l |= AUTOIDLE; /* enable auto idle */ | |
8573e6a6 | 325 | musb_writel(musb->mregs, OTG_SYSCONFIG, l); |
550a7375 | 326 | |
8573e6a6 | 327 | l = musb_readl(musb->mregs, OTG_INTERFSEL); |
de2e1b0c MM |
328 | |
329 | if (data->interface_type == MUSB_INTERFACE_UTMI) { | |
330 | /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */ | |
331 | l &= ~ULPI_12PIN; /* Disable ULPI */ | |
332 | l |= UTMI_8BIT; /* Enable UTMI */ | |
333 | } else { | |
334 | l |= ULPI_12PIN; | |
335 | } | |
336 | ||
8573e6a6 | 337 | musb_writel(musb->mregs, OTG_INTERFSEL, l); |
550a7375 FB |
338 | |
339 | pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, " | |
340 | "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n", | |
8573e6a6 FB |
341 | musb_readl(musb->mregs, OTG_REVISION), |
342 | musb_readl(musb->mregs, OTG_SYSCONFIG), | |
343 | musb_readl(musb->mregs, OTG_SYSSTATUS), | |
344 | musb_readl(musb->mregs, OTG_INTERFSEL), | |
345 | musb_readl(musb->mregs, OTG_SIMENABLE)); | |
550a7375 | 346 | |
594632ef HH |
347 | musb->nb.notifier_call = musb_otg_notifications; |
348 | status = otg_register_notifier(musb->xceiv, &musb->nb); | |
349 | ||
350 | if (status) | |
351 | DBG(1, "notification register failed\n"); | |
352 | ||
353 | /* check whether cable is already connected */ | |
354 | if (musb->xceiv->state ==OTG_STATE_B_IDLE) | |
355 | musb_otg_notifications(&musb->nb, 1, | |
356 | musb->xceiv->gadget); | |
357 | ||
550a7375 FB |
358 | setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb); |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
743411b3 | 363 | static int omap2430_musb_exit(struct musb *musb) |
550a7375 FB |
364 | { |
365 | ||
c20aebb9 | 366 | omap2430_low_level_exit(musb); |
f4053874 | 367 | otg_put_transceiver(musb->xceiv); |
c20aebb9 | 368 | |
550a7375 FB |
369 | return 0; |
370 | } | |
743411b3 | 371 | |
f7ec9437 | 372 | static const struct musb_platform_ops omap2430_ops = { |
743411b3 FB |
373 | .init = omap2430_musb_init, |
374 | .exit = omap2430_musb_exit, | |
375 | ||
743411b3 FB |
376 | .set_mode = omap2430_musb_set_mode, |
377 | .try_idle = omap2430_musb_try_idle, | |
378 | ||
379 | .set_vbus = omap2430_musb_set_vbus, | |
380 | }; | |
dc09886b FB |
381 | |
382 | static u64 omap2430_dmamask = DMA_BIT_MASK(32); | |
383 | ||
384 | static int __init omap2430_probe(struct platform_device *pdev) | |
385 | { | |
386 | struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; | |
387 | struct platform_device *musb; | |
a3cee12a | 388 | struct omap2430_glue *glue; |
03491761 | 389 | struct clk *clk; |
dc09886b FB |
390 | |
391 | int ret = -ENOMEM; | |
392 | ||
a3cee12a FB |
393 | glue = kzalloc(sizeof(*glue), GFP_KERNEL); |
394 | if (!glue) { | |
395 | dev_err(&pdev->dev, "failed to allocate glue context\n"); | |
396 | goto err0; | |
397 | } | |
398 | ||
dc09886b FB |
399 | musb = platform_device_alloc("musb-hdrc", -1); |
400 | if (!musb) { | |
401 | dev_err(&pdev->dev, "failed to allocate musb device\n"); | |
a3cee12a | 402 | goto err1; |
dc09886b FB |
403 | } |
404 | ||
03491761 FB |
405 | clk = clk_get(&pdev->dev, "ick"); |
406 | if (IS_ERR(clk)) { | |
407 | dev_err(&pdev->dev, "failed to get clock\n"); | |
408 | ret = PTR_ERR(clk); | |
409 | goto err2; | |
410 | } | |
411 | ||
412 | ret = clk_enable(clk); | |
413 | if (ret) { | |
414 | dev_err(&pdev->dev, "failed to enable clock\n"); | |
415 | goto err3; | |
416 | } | |
417 | ||
dc09886b FB |
418 | musb->dev.parent = &pdev->dev; |
419 | musb->dev.dma_mask = &omap2430_dmamask; | |
420 | musb->dev.coherent_dma_mask = omap2430_dmamask; | |
421 | ||
a3cee12a FB |
422 | glue->dev = &pdev->dev; |
423 | glue->musb = musb; | |
03491761 | 424 | glue->clk = clk; |
a3cee12a | 425 | |
f7ec9437 FB |
426 | pdata->platform_ops = &omap2430_ops; |
427 | ||
a3cee12a | 428 | platform_set_drvdata(pdev, glue); |
dc09886b FB |
429 | |
430 | ret = platform_device_add_resources(musb, pdev->resource, | |
431 | pdev->num_resources); | |
432 | if (ret) { | |
433 | dev_err(&pdev->dev, "failed to add resources\n"); | |
03491761 | 434 | goto err4; |
dc09886b FB |
435 | } |
436 | ||
437 | ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); | |
438 | if (ret) { | |
439 | dev_err(&pdev->dev, "failed to add platform_data\n"); | |
03491761 | 440 | goto err4; |
dc09886b FB |
441 | } |
442 | ||
443 | ret = platform_device_add(musb); | |
444 | if (ret) { | |
445 | dev_err(&pdev->dev, "failed to register musb device\n"); | |
03491761 | 446 | goto err4; |
dc09886b FB |
447 | } |
448 | ||
449 | return 0; | |
450 | ||
03491761 FB |
451 | err4: |
452 | clk_disable(clk); | |
453 | ||
454 | err3: | |
455 | clk_put(clk); | |
456 | ||
a3cee12a | 457 | err2: |
dc09886b FB |
458 | platform_device_put(musb); |
459 | ||
a3cee12a FB |
460 | err1: |
461 | kfree(glue); | |
462 | ||
dc09886b FB |
463 | err0: |
464 | return ret; | |
465 | } | |
466 | ||
467 | static int __exit omap2430_remove(struct platform_device *pdev) | |
468 | { | |
a3cee12a | 469 | struct omap2430_glue *glue = platform_get_drvdata(pdev); |
dc09886b | 470 | |
a3cee12a FB |
471 | platform_device_del(glue->musb); |
472 | platform_device_put(glue->musb); | |
03491761 FB |
473 | clk_disable(glue->clk); |
474 | clk_put(glue->clk); | |
a3cee12a | 475 | kfree(glue); |
dc09886b FB |
476 | |
477 | return 0; | |
478 | } | |
479 | ||
c20aebb9 FB |
480 | #ifdef CONFIG_PM |
481 | static void omap2430_save_context(struct musb *musb) | |
482 | { | |
483 | musb->context.otg_sysconfig = musb_readl(musb->mregs, OTG_SYSCONFIG); | |
484 | musb->context.otg_forcestandby = musb_readl(musb->mregs, OTG_FORCESTDBY); | |
485 | } | |
486 | ||
487 | static void omap2430_restore_context(struct musb *musb) | |
488 | { | |
489 | musb_writel(musb->mregs, OTG_SYSCONFIG, musb->context.otg_sysconfig); | |
490 | musb_writel(musb->mregs, OTG_FORCESTDBY, musb->context.otg_forcestandby); | |
491 | } | |
492 | ||
493 | static int omap2430_suspend(struct device *dev) | |
494 | { | |
495 | struct omap2430_glue *glue = dev_get_drvdata(dev); | |
496 | struct musb *musb = glue_to_musb(glue); | |
497 | ||
498 | omap2430_low_level_exit(musb); | |
499 | otg_set_suspend(musb->xceiv, 1); | |
500 | omap2430_save_context(musb); | |
501 | clk_disable(glue->clk); | |
502 | ||
503 | return 0; | |
504 | } | |
505 | ||
506 | static int omap2430_resume(struct device *dev) | |
507 | { | |
508 | struct omap2430_glue *glue = dev_get_drvdata(dev); | |
509 | struct musb *musb = glue_to_musb(glue); | |
510 | int ret; | |
511 | ||
512 | ret = clk_enable(glue->clk); | |
513 | if (ret) { | |
514 | dev_err(dev, "faled to enable clock\n"); | |
515 | return ret; | |
516 | } | |
517 | ||
518 | omap2430_low_level_init(musb); | |
519 | omap2430_restore_context(musb); | |
520 | otg_set_suspend(musb->xceiv, 0); | |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
525 | static struct dev_pm_ops omap2430_pm_ops = { | |
526 | .suspend = omap2430_suspend, | |
527 | .resume = omap2430_resume, | |
528 | }; | |
529 | ||
530 | #define DEV_PM_OPS (&omap2430_pm_ops) | |
531 | #else | |
532 | #define DEV_PM_OPS NULL | |
533 | #endif | |
534 | ||
dc09886b FB |
535 | static struct platform_driver omap2430_driver = { |
536 | .remove = __exit_p(omap2430_remove), | |
537 | .driver = { | |
538 | .name = "musb-omap2430", | |
c20aebb9 | 539 | .pm = DEV_PM_OPS, |
dc09886b FB |
540 | }, |
541 | }; | |
542 | ||
543 | MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer"); | |
544 | MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); | |
545 | MODULE_LICENSE("GPL v2"); | |
546 | ||
547 | static int __init omap2430_init(void) | |
548 | { | |
549 | return platform_driver_probe(&omap2430_driver, omap2430_probe); | |
550 | } | |
551 | subsys_initcall(omap2430_init); | |
552 | ||
553 | static void __exit omap2430_exit(void) | |
554 | { | |
555 | platform_driver_unregister(&omap2430_driver); | |
556 | } | |
557 | module_exit(omap2430_exit); |