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->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 resource musb_resources[2]; 485 struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; 486 struct omap_musb_board_data *data; 487 struct platform_device *musb; 488 struct omap2430_glue *glue; 489 struct device_node *np = pdev->dev.of_node; 490 struct musb_hdrc_config *config; 491 int ret = -ENOMEM; 492 493 glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL); 494 if (!glue) { 495 dev_err(&pdev->dev, "failed to allocate glue context\n"); 496 goto err0; 497 } 498 499 musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); 500 if (!musb) { 501 dev_err(&pdev->dev, "failed to allocate musb device\n"); 502 goto err0; 503 } 504 505 musb->dev.parent = &pdev->dev; 506 musb->dev.dma_mask = &omap2430_dmamask; 507 musb->dev.coherent_dma_mask = omap2430_dmamask; 508 509 glue->dev = &pdev->dev; 510 glue->musb = musb; 511 glue->status = OMAP_MUSB_UNKNOWN; 512 513 if (np) { 514 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 515 if (!pdata) { 516 dev_err(&pdev->dev, 517 "failed to allocate musb platform data\n"); 518 goto err2; 519 } 520 521 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); 522 if (!data) { 523 dev_err(&pdev->dev, 524 "failed to allocate musb board data\n"); 525 goto err2; 526 } 527 528 config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL); 529 if (!config) { 530 dev_err(&pdev->dev, 531 "failed to allocate musb hdrc config\n"); 532 goto err2; 533 } 534 535 of_property_read_u32(np, "mode", (u32 *)&pdata->mode); 536 of_property_read_u32(np, "interface-type", 537 (u32 *)&data->interface_type); 538 of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps); 539 of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); 540 of_property_read_u32(np, "power", (u32 *)&pdata->power); 541 config->multipoint = of_property_read_bool(np, "multipoint"); 542 pdata->has_mailbox = of_property_read_bool(np, 543 "ti,has-mailbox"); 544 545 pdata->board_data = data; 546 pdata->config = config; 547 } 548 549 if (pdata->has_mailbox) { 550 glue->control_otghs = omap_get_control_dev(); 551 if (IS_ERR(glue->control_otghs)) { 552 dev_vdbg(&pdev->dev, "Failed to get control device\n"); 553 ret = PTR_ERR(glue->control_otghs); 554 goto err2; 555 } 556 } else { 557 glue->control_otghs = ERR_PTR(-ENODEV); 558 } 559 pdata->platform_ops = &omap2430_ops; 560 561 platform_set_drvdata(pdev, glue); 562 563 /* 564 * REVISIT if we ever have two instances of the wrapper, we will be 565 * in big trouble 566 */ 567 _glue = glue; 568 569 INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work); 570 571 memset(musb_resources, 0x00, sizeof(*musb_resources) * 572 ARRAY_SIZE(musb_resources)); 573 574 musb_resources[0].name = pdev->resource[0].name; 575 musb_resources[0].start = pdev->resource[0].start; 576 musb_resources[0].end = pdev->resource[0].end; 577 musb_resources[0].flags = pdev->resource[0].flags; 578 579 musb_resources[1].name = pdev->resource[1].name; 580 musb_resources[1].start = pdev->resource[1].start; 581 musb_resources[1].end = pdev->resource[1].end; 582 musb_resources[1].flags = pdev->resource[1].flags; 583 584 ret = platform_device_add_resources(musb, musb_resources, 585 ARRAY_SIZE(musb_resources)); 586 if (ret) { 587 dev_err(&pdev->dev, "failed to add resources\n"); 588 goto err2; 589 } 590 591 ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); 592 if (ret) { 593 dev_err(&pdev->dev, "failed to add platform_data\n"); 594 goto err2; 595 } 596 597 pm_runtime_enable(&pdev->dev); 598 599 ret = platform_device_add(musb); 600 if (ret) { 601 dev_err(&pdev->dev, "failed to register musb device\n"); 602 goto err2; 603 } 604 605 return 0; 606 607 err2: 608 platform_device_put(musb); 609 610 err0: 611 return ret; 612 } 613 614 static int omap2430_remove(struct platform_device *pdev) 615 { 616 struct omap2430_glue *glue = platform_get_drvdata(pdev); 617 618 cancel_work_sync(&glue->omap_musb_mailbox_work); 619 platform_device_unregister(glue->musb); 620 621 return 0; 622 } 623 624 #ifdef CONFIG_PM 625 626 static int omap2430_runtime_suspend(struct device *dev) 627 { 628 struct omap2430_glue *glue = dev_get_drvdata(dev); 629 struct musb *musb = glue_to_musb(glue); 630 631 if (musb) { 632 musb->context.otg_interfsel = musb_readl(musb->mregs, 633 OTG_INTERFSEL); 634 635 omap2430_low_level_exit(musb); 636 usb_phy_set_suspend(musb->xceiv, 1); 637 } 638 639 return 0; 640 } 641 642 static int omap2430_runtime_resume(struct device *dev) 643 { 644 struct omap2430_glue *glue = dev_get_drvdata(dev); 645 struct musb *musb = glue_to_musb(glue); 646 647 if (musb) { 648 omap2430_low_level_init(musb); 649 musb_writel(musb->mregs, OTG_INTERFSEL, 650 musb->context.otg_interfsel); 651 652 usb_phy_set_suspend(musb->xceiv, 0); 653 } 654 655 return 0; 656 } 657 658 static struct dev_pm_ops omap2430_pm_ops = { 659 .runtime_suspend = omap2430_runtime_suspend, 660 .runtime_resume = omap2430_runtime_resume, 661 }; 662 663 #define DEV_PM_OPS (&omap2430_pm_ops) 664 #else 665 #define DEV_PM_OPS NULL 666 #endif 667 668 #ifdef CONFIG_OF 669 static const struct of_device_id omap2430_id_table[] = { 670 { 671 .compatible = "ti,omap4-musb" 672 }, 673 { 674 .compatible = "ti,omap3-musb" 675 }, 676 {}, 677 }; 678 MODULE_DEVICE_TABLE(of, omap2430_id_table); 679 #endif 680 681 static struct platform_driver omap2430_driver = { 682 .probe = omap2430_probe, 683 .remove = omap2430_remove, 684 .driver = { 685 .name = "musb-omap2430", 686 .pm = DEV_PM_OPS, 687 .of_match_table = of_match_ptr(omap2430_id_table), 688 }, 689 }; 690 691 MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer"); 692 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); 693 MODULE_LICENSE("GPL v2"); 694 695 static int __init omap2430_init(void) 696 { 697 return platform_driver_register(&omap2430_driver); 698 } 699 subsys_initcall(omap2430_init); 700 701 static void __exit omap2430_exit(void) 702 { 703 platform_driver_unregister(&omap2430_driver); 704 } 705 module_exit(omap2430_exit); 706