1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * phy-brcm-usb.c - Broadcom USB Phy Driver 4 * 5 * Copyright (C) 2015-2017 Broadcom 6 */ 7 8#include <linux/clk.h> 9#include <linux/delay.h> 10#include <linux/err.h> 11#include <linux/io.h> 12#include <linux/module.h> 13#include <linux/of.h> 14#include <linux/phy/phy.h> 15#include <linux/platform_device.h> 16#include <linux/interrupt.h> 17#include <linux/soc/brcmstb/brcmstb.h> 18#include <dt-bindings/phy/phy.h> 19#include <linux/mfd/syscon.h> 20#include <linux/suspend.h> 21 22#include "phy-brcm-usb-init.h" 23 24static DEFINE_MUTEX(sysfs_lock); 25 26enum brcm_usb_phy_id { 27 BRCM_USB_PHY_2_0 = 0, 28 BRCM_USB_PHY_3_0, 29 BRCM_USB_PHY_ID_MAX 30}; 31 32struct value_to_name_map { 33 int value; 34 const char *name; 35}; 36 37struct match_chip_info { 38 void *init_func; 39 u8 required_regs[BRCM_REGS_MAX + 1]; 40 u8 optional_reg; 41}; 42 43static const struct value_to_name_map brcm_dr_mode_to_name[] = { 44 { USB_CTLR_MODE_HOST, "host" }, 45 { USB_CTLR_MODE_DEVICE, "peripheral" }, 46 { USB_CTLR_MODE_DRD, "drd" }, 47 { USB_CTLR_MODE_TYPEC_PD, "typec-pd" } 48}; 49 50static const struct value_to_name_map brcm_dual_mode_to_name[] = { 51 { 0, "host" }, 52 { 1, "device" }, 53 { 2, "auto" }, 54}; 55 56struct brcm_usb_phy { 57 struct phy *phy; 58 unsigned int id; 59 bool inited; 60}; 61 62struct brcm_usb_phy_data { 63 struct brcm_usb_init_params ini; 64 bool has_eohci; 65 bool has_xhci; 66 struct clk *usb_20_clk; 67 struct clk *usb_30_clk; 68 struct clk *suspend_clk; 69 struct mutex mutex; /* serialize phy init */ 70 int init_count; 71 int wake_irq; 72 struct brcm_usb_phy phys[BRCM_USB_PHY_ID_MAX]; 73 struct notifier_block pm_notifier; 74 bool pm_active; 75}; 76 77static s8 *node_reg_names[BRCM_REGS_MAX] = { 78 "crtl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec" 79}; 80 81static int brcm_pm_notifier(struct notifier_block *notifier, 82 unsigned long pm_event, 83 void *unused) 84{ 85 struct brcm_usb_phy_data *priv = 86 container_of(notifier, struct brcm_usb_phy_data, pm_notifier); 87 88 switch (pm_event) { 89 case PM_HIBERNATION_PREPARE: 90 case PM_SUSPEND_PREPARE: 91 priv->pm_active = true; 92 break; 93 case PM_POST_RESTORE: 94 case PM_POST_HIBERNATION: 95 case PM_POST_SUSPEND: 96 priv->pm_active = false; 97 break; 98 } 99 return NOTIFY_DONE; 100} 101 102static irqreturn_t brcm_usb_phy_wake_isr(int irq, void *dev_id) 103{ 104 struct device *dev = dev_id; 105 106 pm_wakeup_event(dev, 0); 107 108 return IRQ_HANDLED; 109} 110 111static int brcm_usb_phy_init(struct phy *gphy) 112{ 113 struct brcm_usb_phy *phy = phy_get_drvdata(gphy); 114 struct brcm_usb_phy_data *priv = 115 container_of(phy, struct brcm_usb_phy_data, phys[phy->id]); 116 117 if (priv->pm_active) 118 return 0; 119 120 /* 121 * Use a lock to make sure a second caller waits until 122 * the base phy is inited before using it. 123 */ 124 mutex_lock(&priv->mutex); 125 if (priv->init_count++ == 0) { 126 clk_prepare_enable(priv->usb_20_clk); 127 clk_prepare_enable(priv->usb_30_clk); 128 clk_prepare_enable(priv->suspend_clk); 129 brcm_usb_init_common(&priv->ini); 130 } 131 mutex_unlock(&priv->mutex); 132 if (phy->id == BRCM_USB_PHY_2_0) 133 brcm_usb_init_eohci(&priv->ini); 134 else if (phy->id == BRCM_USB_PHY_3_0) 135 brcm_usb_init_xhci(&priv->ini); 136 phy->inited = true; 137 dev_dbg(&gphy->dev, "INIT, id: %d, total: %d\n", phy->id, 138 priv->init_count); 139 140 return 0; 141} 142 143static int brcm_usb_phy_exit(struct phy *gphy) 144{ 145 struct brcm_usb_phy *phy = phy_get_drvdata(gphy); 146 struct brcm_usb_phy_data *priv = 147 container_of(phy, struct brcm_usb_phy_data, phys[phy->id]); 148 149 if (priv->pm_active) 150 return 0; 151 152 dev_dbg(&gphy->dev, "EXIT\n"); 153 if (phy->id == BRCM_USB_PHY_2_0) 154 brcm_usb_uninit_eohci(&priv->ini); 155 if (phy->id == BRCM_USB_PHY_3_0) 156 brcm_usb_uninit_xhci(&priv->ini); 157 158 /* If both xhci and eohci are gone, reset everything else */ 159 mutex_lock(&priv->mutex); 160 if (--priv->init_count == 0) { 161 brcm_usb_uninit_common(&priv->ini); 162 clk_disable_unprepare(priv->usb_20_clk); 163 clk_disable_unprepare(priv->usb_30_clk); 164 clk_disable_unprepare(priv->suspend_clk); 165 } 166 mutex_unlock(&priv->mutex); 167 phy->inited = false; 168 return 0; 169} 170 171static const struct phy_ops brcm_usb_phy_ops = { 172 .init = brcm_usb_phy_init, 173 .exit = brcm_usb_phy_exit, 174 .owner = THIS_MODULE, 175}; 176 177static struct phy *brcm_usb_phy_xlate(struct device *dev, 178 struct of_phandle_args *args) 179{ 180 struct brcm_usb_phy_data *data = dev_get_drvdata(dev); 181 182 /* 183 * values 0 and 1 are for backward compatibility with 184 * device tree nodes from older bootloaders. 185 */ 186 switch (args->args[0]) { 187 case 0: 188 case PHY_TYPE_USB2: 189 if (data->phys[BRCM_USB_PHY_2_0].phy) 190 return data->phys[BRCM_USB_PHY_2_0].phy; 191 dev_warn(dev, "Error, 2.0 Phy not found\n"); 192 break; 193 case 1: 194 case PHY_TYPE_USB3: 195 if (data->phys[BRCM_USB_PHY_3_0].phy) 196 return data->phys[BRCM_USB_PHY_3_0].phy; 197 dev_warn(dev, "Error, 3.0 Phy not found\n"); 198 break; 199 } 200 return ERR_PTR(-ENODEV); 201} 202 203static int name_to_value(const struct value_to_name_map *table, int count, 204 const char *name, int *value) 205{ 206 int x; 207 208 *value = 0; 209 for (x = 0; x < count; x++) { 210 if (sysfs_streq(name, table[x].name)) { 211 *value = x; 212 return 0; 213 } 214 } 215 return -EINVAL; 216} 217 218static const char *value_to_name(const struct value_to_name_map *table, int count, 219 int value) 220{ 221 if (value >= count) 222 return "unknown"; 223 return table[value].name; 224} 225 226static ssize_t dr_mode_show(struct device *dev, 227 struct device_attribute *attr, 228 char *buf) 229{ 230 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 231 232 return sprintf(buf, "%s\n", 233 value_to_name(&brcm_dr_mode_to_name[0], 234 ARRAY_SIZE(brcm_dr_mode_to_name), 235 priv->ini.mode)); 236} 237static DEVICE_ATTR_RO(dr_mode); 238 239static ssize_t dual_select_store(struct device *dev, 240 struct device_attribute *attr, 241 const char *buf, size_t len) 242{ 243 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 244 int value; 245 int res; 246 247 mutex_lock(&sysfs_lock); 248 res = name_to_value(&brcm_dual_mode_to_name[0], 249 ARRAY_SIZE(brcm_dual_mode_to_name), buf, &value); 250 if (!res) { 251 brcm_usb_set_dual_select(&priv->ini, value); 252 res = len; 253 } 254 mutex_unlock(&sysfs_lock); 255 return res; 256} 257 258static ssize_t dual_select_show(struct device *dev, 259 struct device_attribute *attr, 260 char *buf) 261{ 262 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 263 int value; 264 265 mutex_lock(&sysfs_lock); 266 value = brcm_usb_get_dual_select(&priv->ini); 267 mutex_unlock(&sysfs_lock); 268 return sprintf(buf, "%s\n", 269 value_to_name(&brcm_dual_mode_to_name[0], 270 ARRAY_SIZE(brcm_dual_mode_to_name), 271 value)); 272} 273static DEVICE_ATTR_RW(dual_select); 274 275static struct attribute *brcm_usb_phy_attrs[] = { 276 &dev_attr_dr_mode.attr, 277 &dev_attr_dual_select.attr, 278 NULL 279}; 280 281static const struct attribute_group brcm_usb_phy_group = { 282 .attrs = brcm_usb_phy_attrs, 283}; 284 285static const struct match_chip_info chip_info_7216 = { 286 .init_func = &brcm_usb_dvr_init_7216, 287 .required_regs = { 288 BRCM_REGS_CTRL, 289 BRCM_REGS_XHCI_EC, 290 BRCM_REGS_XHCI_GBL, 291 -1, 292 }, 293}; 294 295static const struct match_chip_info chip_info_7211b0 = { 296 .init_func = &brcm_usb_dvr_init_7211b0, 297 .required_regs = { 298 BRCM_REGS_CTRL, 299 BRCM_REGS_XHCI_EC, 300 BRCM_REGS_XHCI_GBL, 301 BRCM_REGS_USB_PHY, 302 BRCM_REGS_USB_MDIO, 303 -1, 304 }, 305 .optional_reg = BRCM_REGS_BDC_EC, 306}; 307 308static const struct match_chip_info chip_info_7445 = { 309 .init_func = &brcm_usb_dvr_init_7445, 310 .required_regs = { 311 BRCM_REGS_CTRL, 312 BRCM_REGS_XHCI_EC, 313 -1, 314 }, 315}; 316 317static const struct of_device_id brcm_usb_dt_ids[] = { 318 { 319 .compatible = "brcm,bcm7216-usb-phy", 320 .data = &chip_info_7216, 321 }, 322 { 323 .compatible = "brcm,bcm7211-usb-phy", 324 .data = &chip_info_7211b0, 325 }, 326 { 327 .compatible = "brcm,brcmstb-usb-phy", 328 .data = &chip_info_7445, 329 }, 330 { /* sentinel */ } 331}; 332 333static int brcm_usb_get_regs(struct platform_device *pdev, 334 enum brcmusb_reg_sel regs, 335 struct brcm_usb_init_params *ini, 336 bool optional) 337{ 338 struct resource *res; 339 340 /* Older DT nodes have ctrl and optional xhci_ec by index only */ 341 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, 342 node_reg_names[regs]); 343 if (res == NULL) { 344 if (regs == BRCM_REGS_CTRL) { 345 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 346 } else if (regs == BRCM_REGS_XHCI_EC) { 347 res = platform_get_resource(pdev, IORESOURCE_MEM, 1); 348 /* XHCI_EC registers are optional */ 349 if (res == NULL) 350 return 0; 351 } 352 if (res == NULL) { 353 if (optional) { 354 dev_dbg(&pdev->dev, 355 "Optional reg %s not found\n", 356 node_reg_names[regs]); 357 return 0; 358 } 359 dev_err(&pdev->dev, "can't get %s base addr\n", 360 node_reg_names[regs]); 361 return 1; 362 } 363 } 364 ini->regs[regs] = devm_ioremap_resource(&pdev->dev, res); 365 if (IS_ERR(ini->regs[regs])) { 366 dev_err(&pdev->dev, "can't map %s register space\n", 367 node_reg_names[regs]); 368 return 1; 369 } 370 return 0; 371} 372 373static int brcm_usb_phy_dvr_init(struct platform_device *pdev, 374 struct brcm_usb_phy_data *priv, 375 struct device_node *dn) 376{ 377 struct device *dev = &pdev->dev; 378 struct phy *gphy = NULL; 379 int err; 380 381 priv->usb_20_clk = of_clk_get_by_name(dn, "sw_usb"); 382 if (IS_ERR(priv->usb_20_clk)) { 383 if (PTR_ERR(priv->usb_20_clk) == -EPROBE_DEFER) 384 return -EPROBE_DEFER; 385 dev_info(dev, "Clock not found in Device Tree\n"); 386 priv->usb_20_clk = NULL; 387 } 388 err = clk_prepare_enable(priv->usb_20_clk); 389 if (err) 390 return err; 391 392 if (priv->has_eohci) { 393 gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops); 394 if (IS_ERR(gphy)) { 395 dev_err(dev, "failed to create EHCI/OHCI PHY\n"); 396 return PTR_ERR(gphy); 397 } 398 priv->phys[BRCM_USB_PHY_2_0].phy = gphy; 399 priv->phys[BRCM_USB_PHY_2_0].id = BRCM_USB_PHY_2_0; 400 phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_2_0]); 401 } 402 403 if (priv->has_xhci) { 404 gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops); 405 if (IS_ERR(gphy)) { 406 dev_err(dev, "failed to create XHCI PHY\n"); 407 return PTR_ERR(gphy); 408 } 409 priv->phys[BRCM_USB_PHY_3_0].phy = gphy; 410 priv->phys[BRCM_USB_PHY_3_0].id = BRCM_USB_PHY_3_0; 411 phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_3_0]); 412 413 priv->usb_30_clk = of_clk_get_by_name(dn, "sw_usb3"); 414 if (IS_ERR(priv->usb_30_clk)) { 415 if (PTR_ERR(priv->usb_30_clk) == -EPROBE_DEFER) 416 return -EPROBE_DEFER; 417 dev_info(dev, 418 "USB3.0 clock not found in Device Tree\n"); 419 priv->usb_30_clk = NULL; 420 } 421 err = clk_prepare_enable(priv->usb_30_clk); 422 if (err) 423 return err; 424 } 425 426 priv->suspend_clk = clk_get(dev, "usb0_freerun"); 427 if (IS_ERR(priv->suspend_clk)) { 428 if (PTR_ERR(priv->suspend_clk) == -EPROBE_DEFER) 429 return -EPROBE_DEFER; 430 dev_err(dev, "Suspend Clock not found in Device Tree\n"); 431 priv->suspend_clk = NULL; 432 } 433 434 priv->wake_irq = platform_get_irq_byname(pdev, "wake"); 435 if (priv->wake_irq < 0) 436 priv->wake_irq = platform_get_irq_byname(pdev, "wakeup"); 437 if (priv->wake_irq >= 0) { 438 err = devm_request_irq(dev, priv->wake_irq, 439 brcm_usb_phy_wake_isr, 0, 440 dev_name(dev), dev); 441 if (err < 0) 442 return err; 443 device_set_wakeup_capable(dev, 1); 444 } else { 445 dev_info(dev, 446 "Wake interrupt missing, system wake not supported\n"); 447 } 448 449 return 0; 450} 451 452static int brcm_usb_phy_probe(struct platform_device *pdev) 453{ 454 struct device *dev = &pdev->dev; 455 struct brcm_usb_phy_data *priv; 456 struct phy_provider *phy_provider; 457 struct device_node *dn = pdev->dev.of_node; 458 int err; 459 const char *mode; 460 const struct of_device_id *match; 461 void (*dvr_init)(struct brcm_usb_init_params *params); 462 const struct match_chip_info *info; 463 struct regmap *rmap; 464 int x; 465 466 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 467 if (!priv) 468 return -ENOMEM; 469 platform_set_drvdata(pdev, priv); 470 471 priv->ini.family_id = brcmstb_get_family_id(); 472 priv->ini.product_id = brcmstb_get_product_id(); 473 474 match = of_match_node(brcm_usb_dt_ids, dev->of_node); 475 info = match->data; 476 dvr_init = info->init_func; 477 (*dvr_init)(&priv->ini); 478 479 dev_dbg(dev, "Best mapping table is for %s\n", 480 priv->ini.family_name); 481 482 of_property_read_u32(dn, "brcm,ipp", &priv->ini.ipp); 483 of_property_read_u32(dn, "brcm,ioc", &priv->ini.ioc); 484 485 priv->ini.mode = USB_CTLR_MODE_HOST; 486 err = of_property_read_string(dn, "dr_mode", &mode); 487 if (err == 0) { 488 name_to_value(&brcm_dr_mode_to_name[0], 489 ARRAY_SIZE(brcm_dr_mode_to_name), 490 mode, &priv->ini.mode); 491 } 492 if (of_property_read_bool(dn, "brcm,has-xhci")) 493 priv->has_xhci = true; 494 if (of_property_read_bool(dn, "brcm,has-eohci")) 495 priv->has_eohci = true; 496 497 for (x = 0; x < BRCM_REGS_MAX; x++) { 498 if (info->required_regs[x] >= BRCM_REGS_MAX) 499 break; 500 501 err = brcm_usb_get_regs(pdev, info->required_regs[x], 502 &priv->ini, false); 503 if (err) 504 return -EINVAL; 505 } 506 if (info->optional_reg) { 507 err = brcm_usb_get_regs(pdev, info->optional_reg, 508 &priv->ini, true); 509 if (err) 510 return -EINVAL; 511 } 512 513 err = brcm_usb_phy_dvr_init(pdev, priv, dn); 514 if (err) 515 return err; 516 517 priv->pm_notifier.notifier_call = brcm_pm_notifier; 518 register_pm_notifier(&priv->pm_notifier); 519 520 mutex_init(&priv->mutex); 521 522 /* make sure invert settings are correct */ 523 brcm_usb_init_ipp(&priv->ini); 524 525 /* 526 * Create sysfs entries for mode. 527 * Remove "dual_select" attribute if not in dual mode 528 */ 529 if (priv->ini.mode != USB_CTLR_MODE_DRD) 530 brcm_usb_phy_attrs[1] = NULL; 531 err = sysfs_create_group(&dev->kobj, &brcm_usb_phy_group); 532 if (err) 533 dev_warn(dev, "Error creating sysfs attributes\n"); 534 535 /* Get piarbctl syscon if it exists */ 536 rmap = syscon_regmap_lookup_by_phandle(dev->of_node, 537 "syscon-piarbctl"); 538 if (IS_ERR(rmap)) 539 rmap = syscon_regmap_lookup_by_phandle(dev->of_node, 540 "brcm,syscon-piarbctl"); 541 if (!IS_ERR(rmap)) 542 priv->ini.syscon_piarbctl = rmap; 543 544 /* start with everything off */ 545 if (priv->has_xhci) 546 brcm_usb_uninit_xhci(&priv->ini); 547 if (priv->has_eohci) 548 brcm_usb_uninit_eohci(&priv->ini); 549 brcm_usb_uninit_common(&priv->ini); 550 clk_disable_unprepare(priv->usb_20_clk); 551 clk_disable_unprepare(priv->usb_30_clk); 552 553 phy_provider = devm_of_phy_provider_register(dev, brcm_usb_phy_xlate); 554 555 return PTR_ERR_OR_ZERO(phy_provider); 556} 557 558static int brcm_usb_phy_remove(struct platform_device *pdev) 559{ 560 struct brcm_usb_phy_data *priv = dev_get_drvdata(&pdev->dev); 561 562 sysfs_remove_group(&pdev->dev.kobj, &brcm_usb_phy_group); 563 unregister_pm_notifier(&priv->pm_notifier); 564 565 return 0; 566} 567 568#ifdef CONFIG_PM_SLEEP 569static int brcm_usb_phy_suspend(struct device *dev) 570{ 571 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 572 573 if (priv->init_count) { 574 dev_dbg(dev, "SUSPEND\n"); 575 priv->ini.wake_enabled = device_may_wakeup(dev); 576 if (priv->phys[BRCM_USB_PHY_3_0].inited) 577 brcm_usb_uninit_xhci(&priv->ini); 578 if (priv->phys[BRCM_USB_PHY_2_0].inited) 579 brcm_usb_uninit_eohci(&priv->ini); 580 brcm_usb_uninit_common(&priv->ini); 581 582 /* 583 * Handle the clocks unless needed for wake. This has 584 * to work for both older XHCI->3.0-clks, EOHCI->2.0-clks 585 * and newer XHCI->2.0-clks/3.0-clks. 586 */ 587 588 if (!priv->ini.suspend_with_clocks) { 589 if (priv->phys[BRCM_USB_PHY_3_0].inited) 590 clk_disable_unprepare(priv->usb_30_clk); 591 if (priv->phys[BRCM_USB_PHY_2_0].inited || 592 !priv->has_eohci) 593 clk_disable_unprepare(priv->usb_20_clk); 594 } 595 if (priv->wake_irq >= 0) 596 enable_irq_wake(priv->wake_irq); 597 } 598 return 0; 599} 600 601static int brcm_usb_phy_resume(struct device *dev) 602{ 603 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 604 605 clk_prepare_enable(priv->usb_20_clk); 606 clk_prepare_enable(priv->usb_30_clk); 607 brcm_usb_init_ipp(&priv->ini); 608 609 /* 610 * Initialize anything that was previously initialized. 611 * Uninitialize anything that wasn't previously initialized. 612 */ 613 if (priv->init_count) { 614 dev_dbg(dev, "RESUME\n"); 615 if (priv->wake_irq >= 0) 616 disable_irq_wake(priv->wake_irq); 617 brcm_usb_init_common(&priv->ini); 618 if (priv->phys[BRCM_USB_PHY_2_0].inited) { 619 brcm_usb_init_eohci(&priv->ini); 620 } else if (priv->has_eohci) { 621 brcm_usb_uninit_eohci(&priv->ini); 622 clk_disable_unprepare(priv->usb_20_clk); 623 } 624 if (priv->phys[BRCM_USB_PHY_3_0].inited) { 625 brcm_usb_init_xhci(&priv->ini); 626 } else if (priv->has_xhci) { 627 brcm_usb_uninit_xhci(&priv->ini); 628 clk_disable_unprepare(priv->usb_30_clk); 629 if (!priv->has_eohci) 630 clk_disable_unprepare(priv->usb_20_clk); 631 } 632 } else { 633 if (priv->has_xhci) 634 brcm_usb_uninit_xhci(&priv->ini); 635 if (priv->has_eohci) 636 brcm_usb_uninit_eohci(&priv->ini); 637 brcm_usb_uninit_common(&priv->ini); 638 clk_disable_unprepare(priv->usb_20_clk); 639 clk_disable_unprepare(priv->usb_30_clk); 640 } 641 priv->ini.wake_enabled = false; 642 return 0; 643} 644#endif /* CONFIG_PM_SLEEP */ 645 646static const struct dev_pm_ops brcm_usb_phy_pm_ops = { 647 SET_LATE_SYSTEM_SLEEP_PM_OPS(brcm_usb_phy_suspend, brcm_usb_phy_resume) 648}; 649 650MODULE_DEVICE_TABLE(of, brcm_usb_dt_ids); 651 652static struct platform_driver brcm_usb_driver = { 653 .probe = brcm_usb_phy_probe, 654 .remove = brcm_usb_phy_remove, 655 .driver = { 656 .name = "brcmstb-usb-phy", 657 .pm = &brcm_usb_phy_pm_ops, 658 .of_match_table = brcm_usb_dt_ids, 659 }, 660}; 661 662module_platform_driver(brcm_usb_driver); 663 664MODULE_ALIAS("platform:brcmstb-usb-phy"); 665MODULE_AUTHOR("Al Cooper <acooper@broadcom.com>"); 666MODULE_DESCRIPTION("BRCM USB PHY driver"); 667MODULE_LICENSE("GPL v2"); 668