]>
Commit | Line | Data |
---|---|---|
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> | |
550a7375 | 32 | #include <linux/io.h> |
dc09886b FB |
33 | #include <linux/platform_device.h> |
34 | #include <linux/dma-mapping.h> | |
207b0e1f HH |
35 | #include <linux/pm_runtime.h> |
36 | #include <linux/err.h> | |
550a7375 | 37 | |
550a7375 FB |
38 | #include "musb_core.h" |
39 | #include "omap2430.h" | |
40 | ||
a3cee12a FB |
41 | struct omap2430_glue { |
42 | struct device *dev; | |
43 | struct platform_device *musb; | |
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; | |
53 | u8 power; | |
54 | u8 devctl; | |
55 | ||
550a7375 FB |
56 | spin_lock_irqsave(&musb->lock, flags); |
57 | ||
84e250ff | 58 | switch (musb->xceiv->state) { |
550a7375 | 59 | case OTG_STATE_A_WAIT_BCON: |
550a7375 FB |
60 | |
61 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
62 | if (devctl & MUSB_DEVCTL_BDEVICE) { | |
84e250ff | 63 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 FB |
64 | MUSB_DEV_MODE(musb); |
65 | } else { | |
84e250ff | 66 | musb->xceiv->state = OTG_STATE_A_IDLE; |
550a7375 FB |
67 | MUSB_HST_MODE(musb); |
68 | } | |
69 | break; | |
550a7375 FB |
70 | case OTG_STATE_A_SUSPEND: |
71 | /* finish RESUME signaling? */ | |
72 | if (musb->port1_status & MUSB_PORT_STAT_RESUME) { | |
73 | power = musb_readb(musb->mregs, MUSB_POWER); | |
74 | power &= ~MUSB_POWER_RESUME; | |
5c8a86e1 | 75 | dev_dbg(musb->controller, "root port resume stopped, power %02x\n", power); |
550a7375 FB |
76 | musb_writeb(musb->mregs, MUSB_POWER, power); |
77 | musb->is_active = 1; | |
78 | musb->port1_status &= ~(USB_PORT_STAT_SUSPEND | |
79 | | MUSB_PORT_STAT_RESUME); | |
80 | musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16; | |
81 | usb_hcd_poll_rh_status(musb_to_hcd(musb)); | |
82 | /* NOTE: it might really be A_WAIT_BCON ... */ | |
84e250ff | 83 | musb->xceiv->state = OTG_STATE_A_HOST; |
550a7375 FB |
84 | } |
85 | break; | |
550a7375 FB |
86 | case OTG_STATE_A_HOST: |
87 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
88 | if (devctl & MUSB_DEVCTL_BDEVICE) | |
84e250ff | 89 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 | 90 | else |
84e250ff | 91 | musb->xceiv->state = OTG_STATE_A_WAIT_BCON; |
550a7375 FB |
92 | default: |
93 | break; | |
94 | } | |
95 | spin_unlock_irqrestore(&musb->lock, flags); | |
96 | } | |
97 | ||
98 | ||
743411b3 | 99 | static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout) |
550a7375 FB |
100 | { |
101 | unsigned long default_timeout = jiffies + msecs_to_jiffies(3); | |
102 | static unsigned long last_timer; | |
103 | ||
104 | if (timeout == 0) | |
105 | timeout = default_timeout; | |
106 | ||
107 | /* Never idle if active, or when VBUS timeout is not set as host */ | |
108 | if (musb->is_active || ((musb->a_wait_bcon == 0) | |
84e250ff | 109 | && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) { |
5c8a86e1 | 110 | dev_dbg(musb->controller, "%s active, deleting timer\n", |
3df00453 | 111 | otg_state_string(musb->xceiv->state)); |
550a7375 FB |
112 | del_timer(&musb_idle_timer); |
113 | last_timer = jiffies; | |
114 | return; | |
115 | } | |
116 | ||
117 | if (time_after(last_timer, timeout)) { | |
118 | if (!timer_pending(&musb_idle_timer)) | |
119 | last_timer = timeout; | |
120 | else { | |
5c8a86e1 | 121 | dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n"); |
550a7375 FB |
122 | return; |
123 | } | |
124 | } | |
125 | last_timer = timeout; | |
126 | ||
5c8a86e1 | 127 | dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n", |
3df00453 | 128 | otg_state_string(musb->xceiv->state), |
550a7375 FB |
129 | (unsigned long)jiffies_to_msecs(timeout - jiffies)); |
130 | mod_timer(&musb_idle_timer, timeout); | |
131 | } | |
132 | ||
743411b3 | 133 | static void omap2430_musb_set_vbus(struct musb *musb, int is_on) |
550a7375 | 134 | { |
d445b6da | 135 | struct usb_otg *otg = musb->xceiv->otg; |
550a7375 | 136 | u8 devctl; |
594632ef HH |
137 | unsigned long timeout = jiffies + msecs_to_jiffies(1000); |
138 | int ret = 1; | |
550a7375 FB |
139 | /* HDRC controls CPEN, but beware current surges during device |
140 | * connect. They can trigger transient overcurrent conditions | |
141 | * that must be ignored. | |
142 | */ | |
143 | ||
144 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
145 | ||
146 | if (is_on) { | |
594632ef HH |
147 | if (musb->xceiv->state == OTG_STATE_A_IDLE) { |
148 | /* start the session */ | |
149 | devctl |= MUSB_DEVCTL_SESSION; | |
150 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
151 | /* | |
152 | * Wait for the musb to set as A device to enable the | |
153 | * VBUS | |
154 | */ | |
155 | while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) { | |
156 | ||
157 | cpu_relax(); | |
158 | ||
159 | if (time_after(jiffies, timeout)) { | |
160 | dev_err(musb->controller, | |
161 | "configured as A device timeout"); | |
162 | ret = -EINVAL; | |
163 | break; | |
164 | } | |
165 | } | |
166 | ||
6e13c650 HK |
167 | if (ret && otg->set_vbus) |
168 | otg_set_vbus(otg, 1); | |
594632ef HH |
169 | } else { |
170 | musb->is_active = 1; | |
d445b6da | 171 | otg->default_a = 1; |
594632ef HH |
172 | musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; |
173 | devctl |= MUSB_DEVCTL_SESSION; | |
174 | MUSB_HST_MODE(musb); | |
175 | } | |
550a7375 FB |
176 | } else { |
177 | musb->is_active = 0; | |
178 | ||
179 | /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and | |
180 | * jumping right to B_IDLE... | |
181 | */ | |
182 | ||
d445b6da | 183 | otg->default_a = 0; |
84e250ff | 184 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 FB |
185 | devctl &= ~MUSB_DEVCTL_SESSION; |
186 | ||
187 | MUSB_DEV_MODE(musb); | |
188 | } | |
189 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
190 | ||
5c8a86e1 | 191 | dev_dbg(musb->controller, "VBUS %s, devctl %02x " |
550a7375 | 192 | /* otg %3x conf %08x prcm %08x */ "\n", |
3df00453 | 193 | otg_state_string(musb->xceiv->state), |
550a7375 FB |
194 | musb_readb(musb->mregs, MUSB_DEVCTL)); |
195 | } | |
550a7375 | 196 | |
743411b3 | 197 | static int omap2430_musb_set_mode(struct musb *musb, u8 musb_mode) |
550a7375 FB |
198 | { |
199 | u8 devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
200 | ||
201 | devctl |= MUSB_DEVCTL_SESSION; | |
202 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
203 | ||
96a274d1 | 204 | return 0; |
550a7375 FB |
205 | } |
206 | ||
c20aebb9 FB |
207 | static inline void omap2430_low_level_exit(struct musb *musb) |
208 | { | |
209 | u32 l; | |
210 | ||
211 | /* in any role */ | |
212 | l = musb_readl(musb->mregs, OTG_FORCESTDBY); | |
213 | l |= ENABLEFORCE; /* enable MSTANDBY */ | |
214 | musb_writel(musb->mregs, OTG_FORCESTDBY, l); | |
c20aebb9 FB |
215 | } |
216 | ||
217 | static inline void omap2430_low_level_init(struct musb *musb) | |
218 | { | |
219 | u32 l; | |
220 | ||
c20aebb9 FB |
221 | l = musb_readl(musb->mregs, OTG_FORCESTDBY); |
222 | l &= ~ENABLEFORCE; /* disable MSTANDBY */ | |
223 | musb_writel(musb->mregs, OTG_FORCESTDBY, l); | |
224 | } | |
225 | ||
594632ef HH |
226 | static int musb_otg_notifications(struct notifier_block *nb, |
227 | unsigned long event, void *unused) | |
228 | { | |
229 | struct musb *musb = container_of(nb, struct musb, nb); | |
712d8efa VP |
230 | |
231 | musb->xceiv_event = event; | |
232 | schedule_work(&musb->otg_notifier_work); | |
233 | ||
b30b3c60 | 234 | return NOTIFY_OK; |
712d8efa VP |
235 | } |
236 | ||
237 | static void musb_otg_notifier_work(struct work_struct *data_notifier_work) | |
238 | { | |
239 | struct musb *musb = container_of(data_notifier_work, struct musb, otg_notifier_work); | |
594632ef HH |
240 | struct device *dev = musb->controller; |
241 | struct musb_hdrc_platform_data *pdata = dev->platform_data; | |
242 | struct omap_musb_board_data *data = pdata->board_data; | |
243 | ||
712d8efa | 244 | switch (musb->xceiv_event) { |
594632ef | 245 | case USB_EVENT_ID: |
5c8a86e1 | 246 | dev_dbg(musb->controller, "ID GND\n"); |
594632ef | 247 | |
b3314d9a | 248 | if (!is_otg_enabled(musb) || musb->gadget_driver) { |
7acc6197 | 249 | pm_runtime_get_sync(musb->controller); |
b96d3b08 | 250 | usb_phy_init(musb->xceiv); |
70045c57 | 251 | omap2430_musb_set_vbus(musb, 1); |
594632ef HH |
252 | } |
253 | break; | |
254 | ||
255 | case USB_EVENT_VBUS: | |
5c8a86e1 | 256 | dev_dbg(musb->controller, "VBUS Connect\n"); |
594632ef | 257 | |
7acc6197 HH |
258 | if (musb->gadget_driver) |
259 | pm_runtime_get_sync(musb->controller); | |
b96d3b08 | 260 | usb_phy_init(musb->xceiv); |
594632ef HH |
261 | break; |
262 | ||
263 | case USB_EVENT_NONE: | |
5c8a86e1 | 264 | dev_dbg(musb->controller, "VBUS Disconnect\n"); |
594632ef | 265 | |
383cf4e8 | 266 | if (is_otg_enabled(musb) || is_peripheral_enabled(musb)) |
62285963 | 267 | if (musb->gadget_driver) { |
7acc6197 HH |
268 | pm_runtime_mark_last_busy(musb->controller); |
269 | pm_runtime_put_autosuspend(musb->controller); | |
270 | } | |
271 | ||
594632ef | 272 | if (data->interface_type == MUSB_INTERFACE_UTMI) { |
6e13c650 HK |
273 | if (musb->xceiv->otg->set_vbus) |
274 | otg_set_vbus(musb->xceiv->otg, 0); | |
594632ef | 275 | } |
b96d3b08 | 276 | usb_phy_shutdown(musb->xceiv); |
594632ef HH |
277 | break; |
278 | default: | |
5c8a86e1 | 279 | dev_dbg(musb->controller, "ID float\n"); |
594632ef | 280 | } |
594632ef HH |
281 | } |
282 | ||
743411b3 | 283 | static int omap2430_musb_init(struct musb *musb) |
550a7375 | 284 | { |
594632ef | 285 | u32 l, status = 0; |
ea65df57 HK |
286 | struct device *dev = musb->controller; |
287 | struct musb_hdrc_platform_data *plat = dev->platform_data; | |
288 | struct omap_musb_board_data *data = plat->board_data; | |
550a7375 | 289 | |
84e250ff DB |
290 | /* We require some kind of external transceiver, hooked |
291 | * up through ULPI. TWL4030-family PMICs include one, | |
292 | * which needs a driver, drivers aren't always needed. | |
293 | */ | |
b96d3b08 | 294 | musb->xceiv = usb_get_transceiver(); |
84e250ff DB |
295 | if (!musb->xceiv) { |
296 | pr_err("HS USB OTG: no transceiver configured\n"); | |
297 | return -ENODEV; | |
298 | } | |
299 | ||
712d8efa VP |
300 | INIT_WORK(&musb->otg_notifier_work, musb_otg_notifier_work); |
301 | ||
7acc6197 HH |
302 | status = pm_runtime_get_sync(dev); |
303 | if (status < 0) { | |
304 | dev_err(dev, "pm_runtime_get_sync FAILED"); | |
305 | goto err1; | |
306 | } | |
550a7375 | 307 | |
8573e6a6 | 308 | l = musb_readl(musb->mregs, OTG_INTERFSEL); |
de2e1b0c MM |
309 | |
310 | if (data->interface_type == MUSB_INTERFACE_UTMI) { | |
311 | /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */ | |
312 | l &= ~ULPI_12PIN; /* Disable ULPI */ | |
313 | l |= UTMI_8BIT; /* Enable UTMI */ | |
314 | } else { | |
315 | l |= ULPI_12PIN; | |
316 | } | |
317 | ||
8573e6a6 | 318 | musb_writel(musb->mregs, OTG_INTERFSEL, l); |
550a7375 FB |
319 | |
320 | pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, " | |
321 | "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n", | |
8573e6a6 FB |
322 | musb_readl(musb->mregs, OTG_REVISION), |
323 | musb_readl(musb->mregs, OTG_SYSCONFIG), | |
324 | musb_readl(musb->mregs, OTG_SYSSTATUS), | |
325 | musb_readl(musb->mregs, OTG_INTERFSEL), | |
326 | musb_readl(musb->mregs, OTG_SIMENABLE)); | |
550a7375 | 327 | |
594632ef | 328 | musb->nb.notifier_call = musb_otg_notifications; |
b96d3b08 | 329 | status = usb_register_notifier(musb->xceiv, &musb->nb); |
594632ef HH |
330 | |
331 | if (status) | |
5c8a86e1 | 332 | dev_dbg(musb->controller, "notification register failed\n"); |
594632ef | 333 | |
550a7375 FB |
334 | setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb); |
335 | ||
336 | return 0; | |
7acc6197 HH |
337 | |
338 | err1: | |
7acc6197 | 339 | return status; |
550a7375 FB |
340 | } |
341 | ||
002eda13 HH |
342 | static void omap2430_musb_enable(struct musb *musb) |
343 | { | |
344 | u8 devctl; | |
345 | unsigned long timeout = jiffies + msecs_to_jiffies(1000); | |
346 | struct device *dev = musb->controller; | |
347 | struct musb_hdrc_platform_data *pdata = dev->platform_data; | |
348 | struct omap_musb_board_data *data = pdata->board_data; | |
349 | ||
350 | switch (musb->xceiv->last_event) { | |
351 | ||
352 | case USB_EVENT_ID: | |
b96d3b08 | 353 | usb_phy_init(musb->xceiv); |
08dec56e FC |
354 | if (data->interface_type != MUSB_INTERFACE_UTMI) |
355 | break; | |
356 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
357 | /* start the session */ | |
358 | devctl |= MUSB_DEVCTL_SESSION; | |
359 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
360 | while (musb_readb(musb->mregs, MUSB_DEVCTL) & | |
361 | MUSB_DEVCTL_BDEVICE) { | |
362 | cpu_relax(); | |
363 | ||
364 | if (time_after(jiffies, timeout)) { | |
365 | dev_err(dev, "configured as A device timeout"); | |
366 | break; | |
002eda13 HH |
367 | } |
368 | } | |
369 | break; | |
370 | ||
371 | case USB_EVENT_VBUS: | |
b96d3b08 | 372 | usb_phy_init(musb->xceiv); |
002eda13 HH |
373 | break; |
374 | ||
375 | default: | |
376 | break; | |
377 | } | |
378 | } | |
379 | ||
380 | static void omap2430_musb_disable(struct musb *musb) | |
381 | { | |
382 | if (musb->xceiv->last_event) | |
b96d3b08 | 383 | usb_phy_shutdown(musb->xceiv); |
550a7375 FB |
384 | } |
385 | ||
743411b3 | 386 | static int omap2430_musb_exit(struct musb *musb) |
550a7375 | 387 | { |
19b9a83e | 388 | del_timer_sync(&musb_idle_timer); |
b30b3c60 | 389 | cancel_work_sync(&musb->otg_notifier_work); |
550a7375 | 390 | |
c20aebb9 | 391 | omap2430_low_level_exit(musb); |
b96d3b08 | 392 | usb_put_transceiver(musb->xceiv); |
c20aebb9 | 393 | |
550a7375 FB |
394 | return 0; |
395 | } | |
743411b3 | 396 | |
f7ec9437 | 397 | static const struct musb_platform_ops omap2430_ops = { |
743411b3 FB |
398 | .init = omap2430_musb_init, |
399 | .exit = omap2430_musb_exit, | |
400 | ||
743411b3 FB |
401 | .set_mode = omap2430_musb_set_mode, |
402 | .try_idle = omap2430_musb_try_idle, | |
403 | ||
404 | .set_vbus = omap2430_musb_set_vbus, | |
002eda13 HH |
405 | |
406 | .enable = omap2430_musb_enable, | |
407 | .disable = omap2430_musb_disable, | |
743411b3 | 408 | }; |
dc09886b FB |
409 | |
410 | static u64 omap2430_dmamask = DMA_BIT_MASK(32); | |
411 | ||
412 | static int __init omap2430_probe(struct platform_device *pdev) | |
413 | { | |
414 | struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; | |
415 | struct platform_device *musb; | |
a3cee12a | 416 | struct omap2430_glue *glue; |
dc09886b FB |
417 | int ret = -ENOMEM; |
418 | ||
a3cee12a FB |
419 | glue = kzalloc(sizeof(*glue), GFP_KERNEL); |
420 | if (!glue) { | |
421 | dev_err(&pdev->dev, "failed to allocate glue context\n"); | |
422 | goto err0; | |
423 | } | |
424 | ||
dc09886b FB |
425 | musb = platform_device_alloc("musb-hdrc", -1); |
426 | if (!musb) { | |
427 | dev_err(&pdev->dev, "failed to allocate musb device\n"); | |
a3cee12a | 428 | goto err1; |
dc09886b FB |
429 | } |
430 | ||
431 | musb->dev.parent = &pdev->dev; | |
432 | musb->dev.dma_mask = &omap2430_dmamask; | |
433 | musb->dev.coherent_dma_mask = omap2430_dmamask; | |
434 | ||
a3cee12a FB |
435 | glue->dev = &pdev->dev; |
436 | glue->musb = musb; | |
437 | ||
f7ec9437 FB |
438 | pdata->platform_ops = &omap2430_ops; |
439 | ||
a3cee12a | 440 | platform_set_drvdata(pdev, glue); |
dc09886b FB |
441 | |
442 | ret = platform_device_add_resources(musb, pdev->resource, | |
443 | pdev->num_resources); | |
444 | if (ret) { | |
445 | dev_err(&pdev->dev, "failed to add resources\n"); | |
207b0e1f | 446 | goto err2; |
dc09886b FB |
447 | } |
448 | ||
449 | ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); | |
450 | if (ret) { | |
451 | dev_err(&pdev->dev, "failed to add platform_data\n"); | |
207b0e1f | 452 | goto err2; |
dc09886b FB |
453 | } |
454 | ||
455 | ret = platform_device_add(musb); | |
456 | if (ret) { | |
457 | dev_err(&pdev->dev, "failed to register musb device\n"); | |
207b0e1f | 458 | goto err2; |
dc09886b FB |
459 | } |
460 | ||
207b0e1f | 461 | pm_runtime_enable(&pdev->dev); |
03491761 | 462 | |
207b0e1f | 463 | return 0; |
03491761 | 464 | |
a3cee12a | 465 | err2: |
dc09886b FB |
466 | platform_device_put(musb); |
467 | ||
a3cee12a FB |
468 | err1: |
469 | kfree(glue); | |
470 | ||
dc09886b FB |
471 | err0: |
472 | return ret; | |
473 | } | |
474 | ||
475 | static int __exit omap2430_remove(struct platform_device *pdev) | |
476 | { | |
a3cee12a | 477 | struct omap2430_glue *glue = platform_get_drvdata(pdev); |
dc09886b | 478 | |
a3cee12a FB |
479 | platform_device_del(glue->musb); |
480 | platform_device_put(glue->musb); | |
207b0e1f | 481 | pm_runtime_put(&pdev->dev); |
a3cee12a | 482 | kfree(glue); |
dc09886b FB |
483 | |
484 | return 0; | |
485 | } | |
486 | ||
c20aebb9 | 487 | #ifdef CONFIG_PM |
c20aebb9 | 488 | |
7acc6197 | 489 | static int omap2430_runtime_suspend(struct device *dev) |
c20aebb9 FB |
490 | { |
491 | struct omap2430_glue *glue = dev_get_drvdata(dev); | |
492 | struct musb *musb = glue_to_musb(glue); | |
493 | ||
e25bec16 HH |
494 | musb->context.otg_interfsel = musb_readl(musb->mregs, |
495 | OTG_INTERFSEL); | |
496 | ||
c20aebb9 | 497 | omap2430_low_level_exit(musb); |
b96d3b08 | 498 | usb_phy_set_suspend(musb->xceiv, 1); |
c20aebb9 FB |
499 | |
500 | return 0; | |
501 | } | |
502 | ||
7acc6197 | 503 | static int omap2430_runtime_resume(struct device *dev) |
c20aebb9 FB |
504 | { |
505 | struct omap2430_glue *glue = dev_get_drvdata(dev); | |
506 | struct musb *musb = glue_to_musb(glue); | |
c20aebb9 FB |
507 | |
508 | omap2430_low_level_init(musb); | |
e25bec16 HH |
509 | musb_writel(musb->mregs, OTG_INTERFSEL, |
510 | musb->context.otg_interfsel); | |
511 | ||
b96d3b08 | 512 | usb_phy_set_suspend(musb->xceiv, 0); |
c20aebb9 FB |
513 | |
514 | return 0; | |
515 | } | |
516 | ||
517 | static struct dev_pm_ops omap2430_pm_ops = { | |
7acc6197 HH |
518 | .runtime_suspend = omap2430_runtime_suspend, |
519 | .runtime_resume = omap2430_runtime_resume, | |
c20aebb9 FB |
520 | }; |
521 | ||
522 | #define DEV_PM_OPS (&omap2430_pm_ops) | |
523 | #else | |
524 | #define DEV_PM_OPS NULL | |
525 | #endif | |
526 | ||
dc09886b FB |
527 | static struct platform_driver omap2430_driver = { |
528 | .remove = __exit_p(omap2430_remove), | |
529 | .driver = { | |
530 | .name = "musb-omap2430", | |
c20aebb9 | 531 | .pm = DEV_PM_OPS, |
dc09886b FB |
532 | }, |
533 | }; | |
534 | ||
535 | MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer"); | |
536 | MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); | |
537 | MODULE_LICENSE("GPL v2"); | |
538 | ||
539 | static int __init omap2430_init(void) | |
540 | { | |
541 | return platform_driver_probe(&omap2430_driver, omap2430_probe); | |
542 | } | |
543 | subsys_initcall(omap2430_init); | |
544 | ||
545 | static void __exit omap2430_exit(void) | |
546 | { | |
547 | platform_driver_unregister(&omap2430_driver); | |
548 | } | |
549 | module_exit(omap2430_exit); |