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/of_device.h> 15 #include <linux/phy/phy.h> 16 #include <linux/platform_device.h> 17 #include <linux/interrupt.h> 18 #include <linux/soc/brcmstb/brcmstb.h> 19 #include <dt-bindings/phy/phy.h> 20 #include <linux/mfd/syscon.h> 21 #include <linux/suspend.h> 22 23 #include "phy-brcm-usb-init.h" 24 25 static DEFINE_MUTEX(sysfs_lock); 26 27 enum brcm_usb_phy_id { 28 BRCM_USB_PHY_2_0 = 0, 29 BRCM_USB_PHY_3_0, 30 BRCM_USB_PHY_ID_MAX 31 }; 32 33 struct value_to_name_map { 34 int value; 35 const char *name; 36 }; 37 38 struct match_chip_info { 39 void (*init_func)(struct brcm_usb_init_params *params); 40 u8 required_regs[BRCM_REGS_MAX + 1]; 41 u8 optional_reg; 42 }; 43 44 static const struct value_to_name_map brcm_dr_mode_to_name[] = { 45 { USB_CTLR_MODE_HOST, "host" }, 46 { USB_CTLR_MODE_DEVICE, "peripheral" }, 47 { USB_CTLR_MODE_DRD, "drd" }, 48 { USB_CTLR_MODE_TYPEC_PD, "typec-pd" } 49 }; 50 51 static const struct value_to_name_map brcm_dual_mode_to_name[] = { 52 { 0, "host" }, 53 { 1, "device" }, 54 { 2, "auto" }, 55 }; 56 57 struct brcm_usb_phy { 58 struct phy *phy; 59 unsigned int id; 60 bool inited; 61 }; 62 63 struct brcm_usb_phy_data { 64 struct brcm_usb_init_params ini; 65 bool has_eohci; 66 bool has_xhci; 67 struct clk *usb_20_clk; 68 struct clk *usb_30_clk; 69 struct clk *suspend_clk; 70 struct mutex mutex; /* serialize phy init */ 71 int init_count; 72 int wake_irq; 73 struct brcm_usb_phy phys[BRCM_USB_PHY_ID_MAX]; 74 struct notifier_block pm_notifier; 75 bool pm_active; 76 }; 77 78 static s8 *node_reg_names[BRCM_REGS_MAX] = { 79 "crtl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec" 80 }; 81 82 static int brcm_pm_notifier(struct notifier_block *notifier, 83 unsigned long pm_event, 84 void *unused) 85 { 86 struct brcm_usb_phy_data *priv = 87 container_of(notifier, struct brcm_usb_phy_data, pm_notifier); 88 89 switch (pm_event) { 90 case PM_HIBERNATION_PREPARE: 91 case PM_SUSPEND_PREPARE: 92 priv->pm_active = true; 93 break; 94 case PM_POST_RESTORE: 95 case PM_POST_HIBERNATION: 96 case PM_POST_SUSPEND: 97 priv->pm_active = false; 98 break; 99 } 100 return NOTIFY_DONE; 101 } 102 103 static irqreturn_t brcm_usb_phy_wake_isr(int irq, void *dev_id) 104 { 105 struct phy *gphy = dev_id; 106 107 pm_wakeup_event(&gphy->dev, 0); 108 109 return IRQ_HANDLED; 110 } 111 112 static int brcm_usb_phy_init(struct phy *gphy) 113 { 114 struct brcm_usb_phy *phy = phy_get_drvdata(gphy); 115 struct brcm_usb_phy_data *priv = 116 container_of(phy, struct brcm_usb_phy_data, phys[phy->id]); 117 118 if (priv->pm_active) 119 return 0; 120 121 /* 122 * Use a lock to make sure a second caller waits until 123 * the base phy is inited before using it. 124 */ 125 mutex_lock(&priv->mutex); 126 if (priv->init_count++ == 0) { 127 clk_prepare_enable(priv->usb_20_clk); 128 clk_prepare_enable(priv->usb_30_clk); 129 clk_prepare_enable(priv->suspend_clk); 130 brcm_usb_init_common(&priv->ini); 131 } 132 mutex_unlock(&priv->mutex); 133 if (phy->id == BRCM_USB_PHY_2_0) 134 brcm_usb_init_eohci(&priv->ini); 135 else if (phy->id == BRCM_USB_PHY_3_0) 136 brcm_usb_init_xhci(&priv->ini); 137 phy->inited = true; 138 dev_dbg(&gphy->dev, "INIT, id: %d, total: %d\n", phy->id, 139 priv->init_count); 140 141 return 0; 142 } 143 144 static int brcm_usb_phy_exit(struct phy *gphy) 145 { 146 struct brcm_usb_phy *phy = phy_get_drvdata(gphy); 147 struct brcm_usb_phy_data *priv = 148 container_of(phy, struct brcm_usb_phy_data, phys[phy->id]); 149 150 if (priv->pm_active) 151 return 0; 152 153 dev_dbg(&gphy->dev, "EXIT\n"); 154 if (phy->id == BRCM_USB_PHY_2_0) 155 brcm_usb_uninit_eohci(&priv->ini); 156 if (phy->id == BRCM_USB_PHY_3_0) 157 brcm_usb_uninit_xhci(&priv->ini); 158 159 /* If both xhci and eohci are gone, reset everything else */ 160 mutex_lock(&priv->mutex); 161 if (--priv->init_count == 0) { 162 brcm_usb_uninit_common(&priv->ini); 163 clk_disable_unprepare(priv->usb_20_clk); 164 clk_disable_unprepare(priv->usb_30_clk); 165 clk_disable_unprepare(priv->suspend_clk); 166 } 167 mutex_unlock(&priv->mutex); 168 phy->inited = false; 169 return 0; 170 } 171 172 static const struct phy_ops brcm_usb_phy_ops = { 173 .init = brcm_usb_phy_init, 174 .exit = brcm_usb_phy_exit, 175 .owner = THIS_MODULE, 176 }; 177 178 static struct phy *brcm_usb_phy_xlate(struct device *dev, 179 struct of_phandle_args *args) 180 { 181 struct brcm_usb_phy_data *data = dev_get_drvdata(dev); 182 183 /* 184 * values 0 and 1 are for backward compatibility with 185 * device tree nodes from older bootloaders. 186 */ 187 switch (args->args[0]) { 188 case 0: 189 case PHY_TYPE_USB2: 190 if (data->phys[BRCM_USB_PHY_2_0].phy) 191 return data->phys[BRCM_USB_PHY_2_0].phy; 192 dev_warn(dev, "Error, 2.0 Phy not found\n"); 193 break; 194 case 1: 195 case PHY_TYPE_USB3: 196 if (data->phys[BRCM_USB_PHY_3_0].phy) 197 return data->phys[BRCM_USB_PHY_3_0].phy; 198 dev_warn(dev, "Error, 3.0 Phy not found\n"); 199 break; 200 } 201 return ERR_PTR(-ENODEV); 202 } 203 204 static int name_to_value(const struct value_to_name_map *table, int count, 205 const char *name, int *value) 206 { 207 int x; 208 209 *value = 0; 210 for (x = 0; x < count; x++) { 211 if (sysfs_streq(name, table[x].name)) { 212 *value = x; 213 return 0; 214 } 215 } 216 return -EINVAL; 217 } 218 219 static const char *value_to_name(const struct value_to_name_map *table, int count, 220 int value) 221 { 222 if (value >= count) 223 return "unknown"; 224 return table[value].name; 225 } 226 227 static ssize_t dr_mode_show(struct device *dev, 228 struct device_attribute *attr, 229 char *buf) 230 { 231 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 232 233 return sprintf(buf, "%s\n", 234 value_to_name(&brcm_dr_mode_to_name[0], 235 ARRAY_SIZE(brcm_dr_mode_to_name), 236 priv->ini.mode)); 237 } 238 static DEVICE_ATTR_RO(dr_mode); 239 240 static ssize_t dual_select_store(struct device *dev, 241 struct device_attribute *attr, 242 const char *buf, size_t len) 243 { 244 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 245 int value; 246 int res; 247 248 mutex_lock(&sysfs_lock); 249 res = name_to_value(&brcm_dual_mode_to_name[0], 250 ARRAY_SIZE(brcm_dual_mode_to_name), buf, &value); 251 if (!res) { 252 brcm_usb_set_dual_select(&priv->ini, value); 253 res = len; 254 } 255 mutex_unlock(&sysfs_lock); 256 return res; 257 } 258 259 static ssize_t dual_select_show(struct device *dev, 260 struct device_attribute *attr, 261 char *buf) 262 { 263 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 264 int value; 265 266 mutex_lock(&sysfs_lock); 267 value = brcm_usb_get_dual_select(&priv->ini); 268 mutex_unlock(&sysfs_lock); 269 return sprintf(buf, "%s\n", 270 value_to_name(&brcm_dual_mode_to_name[0], 271 ARRAY_SIZE(brcm_dual_mode_to_name), 272 value)); 273 } 274 static DEVICE_ATTR_RW(dual_select); 275 276 static struct attribute *brcm_usb_phy_attrs[] = { 277 &dev_attr_dr_mode.attr, 278 &dev_attr_dual_select.attr, 279 NULL 280 }; 281 282 static const struct attribute_group brcm_usb_phy_group = { 283 .attrs = brcm_usb_phy_attrs, 284 }; 285 286 static const struct match_chip_info chip_info_4908 = { 287 .init_func = &brcm_usb_dvr_init_4908, 288 .required_regs = { 289 BRCM_REGS_CTRL, 290 BRCM_REGS_XHCI_EC, 291 -1, 292 }, 293 }; 294 295 static const struct match_chip_info chip_info_7216 = { 296 .init_func = &brcm_usb_dvr_init_7216, 297 .required_regs = { 298 BRCM_REGS_CTRL, 299 BRCM_REGS_XHCI_EC, 300 BRCM_REGS_XHCI_GBL, 301 -1, 302 }, 303 }; 304 305 static const struct match_chip_info chip_info_7211b0 = { 306 .init_func = &brcm_usb_dvr_init_7211b0, 307 .required_regs = { 308 BRCM_REGS_CTRL, 309 BRCM_REGS_XHCI_EC, 310 BRCM_REGS_XHCI_GBL, 311 BRCM_REGS_USB_PHY, 312 BRCM_REGS_USB_MDIO, 313 -1, 314 }, 315 .optional_reg = BRCM_REGS_BDC_EC, 316 }; 317 318 static const struct match_chip_info chip_info_7445 = { 319 .init_func = &brcm_usb_dvr_init_7445, 320 .required_regs = { 321 BRCM_REGS_CTRL, 322 BRCM_REGS_XHCI_EC, 323 -1, 324 }, 325 }; 326 327 static const struct of_device_id brcm_usb_dt_ids[] = { 328 { 329 .compatible = "brcm,bcm4908-usb-phy", 330 .data = &chip_info_4908, 331 }, 332 { 333 .compatible = "brcm,bcm7216-usb-phy", 334 .data = &chip_info_7216, 335 }, 336 { 337 .compatible = "brcm,bcm7211-usb-phy", 338 .data = &chip_info_7211b0, 339 }, 340 { 341 .compatible = "brcm,brcmstb-usb-phy", 342 .data = &chip_info_7445, 343 }, 344 { /* sentinel */ } 345 }; 346 347 static int brcm_usb_get_regs(struct platform_device *pdev, 348 enum brcmusb_reg_sel regs, 349 struct brcm_usb_init_params *ini, 350 bool optional) 351 { 352 struct resource *res; 353 354 /* Older DT nodes have ctrl and optional xhci_ec by index only */ 355 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, 356 node_reg_names[regs]); 357 if (res == NULL) { 358 if (regs == BRCM_REGS_CTRL) { 359 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 360 } else if (regs == BRCM_REGS_XHCI_EC) { 361 res = platform_get_resource(pdev, IORESOURCE_MEM, 1); 362 /* XHCI_EC registers are optional */ 363 if (res == NULL) 364 return 0; 365 } 366 if (res == NULL) { 367 if (optional) { 368 dev_dbg(&pdev->dev, 369 "Optional reg %s not found\n", 370 node_reg_names[regs]); 371 return 0; 372 } 373 dev_err(&pdev->dev, "can't get %s base addr\n", 374 node_reg_names[regs]); 375 return 1; 376 } 377 } 378 ini->regs[regs] = devm_ioremap_resource(&pdev->dev, res); 379 if (IS_ERR(ini->regs[regs])) { 380 dev_err(&pdev->dev, "can't map %s register space\n", 381 node_reg_names[regs]); 382 return 1; 383 } 384 return 0; 385 } 386 387 static int brcm_usb_phy_dvr_init(struct platform_device *pdev, 388 struct brcm_usb_phy_data *priv, 389 struct device_node *dn) 390 { 391 struct device *dev = &pdev->dev; 392 struct phy *gphy = NULL; 393 int err; 394 395 priv->usb_20_clk = of_clk_get_by_name(dn, "sw_usb"); 396 if (IS_ERR(priv->usb_20_clk)) { 397 if (PTR_ERR(priv->usb_20_clk) == -EPROBE_DEFER) 398 return -EPROBE_DEFER; 399 dev_info(dev, "Clock not found in Device Tree\n"); 400 priv->usb_20_clk = NULL; 401 } 402 err = clk_prepare_enable(priv->usb_20_clk); 403 if (err) 404 return err; 405 406 if (priv->has_eohci) { 407 gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops); 408 if (IS_ERR(gphy)) { 409 dev_err(dev, "failed to create EHCI/OHCI PHY\n"); 410 return PTR_ERR(gphy); 411 } 412 priv->phys[BRCM_USB_PHY_2_0].phy = gphy; 413 priv->phys[BRCM_USB_PHY_2_0].id = BRCM_USB_PHY_2_0; 414 phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_2_0]); 415 } 416 417 if (priv->has_xhci) { 418 gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops); 419 if (IS_ERR(gphy)) { 420 dev_err(dev, "failed to create XHCI PHY\n"); 421 return PTR_ERR(gphy); 422 } 423 priv->phys[BRCM_USB_PHY_3_0].phy = gphy; 424 priv->phys[BRCM_USB_PHY_3_0].id = BRCM_USB_PHY_3_0; 425 phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_3_0]); 426 427 priv->usb_30_clk = of_clk_get_by_name(dn, "sw_usb3"); 428 if (IS_ERR(priv->usb_30_clk)) { 429 if (PTR_ERR(priv->usb_30_clk) == -EPROBE_DEFER) 430 return -EPROBE_DEFER; 431 dev_info(dev, 432 "USB3.0 clock not found in Device Tree\n"); 433 priv->usb_30_clk = NULL; 434 } 435 err = clk_prepare_enable(priv->usb_30_clk); 436 if (err) 437 return err; 438 } 439 440 priv->suspend_clk = clk_get(dev, "usb0_freerun"); 441 if (IS_ERR(priv->suspend_clk)) { 442 if (PTR_ERR(priv->suspend_clk) == -EPROBE_DEFER) 443 return -EPROBE_DEFER; 444 dev_err(dev, "Suspend Clock not found in Device Tree\n"); 445 priv->suspend_clk = NULL; 446 } 447 448 priv->wake_irq = platform_get_irq_byname(pdev, "wake"); 449 if (priv->wake_irq < 0) 450 priv->wake_irq = platform_get_irq_byname(pdev, "wakeup"); 451 if (priv->wake_irq >= 0) { 452 err = devm_request_irq(dev, priv->wake_irq, 453 brcm_usb_phy_wake_isr, 0, 454 dev_name(dev), gphy); 455 if (err < 0) 456 return err; 457 device_set_wakeup_capable(dev, 1); 458 } else { 459 dev_info(dev, 460 "Wake interrupt missing, system wake not supported\n"); 461 } 462 463 return 0; 464 } 465 466 static int brcm_usb_phy_probe(struct platform_device *pdev) 467 { 468 struct device *dev = &pdev->dev; 469 struct brcm_usb_phy_data *priv; 470 struct phy_provider *phy_provider; 471 struct device_node *dn = pdev->dev.of_node; 472 int err; 473 const char *mode; 474 const struct match_chip_info *info; 475 struct regmap *rmap; 476 int x; 477 478 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 479 if (!priv) 480 return -ENOMEM; 481 platform_set_drvdata(pdev, priv); 482 483 priv->ini.family_id = brcmstb_get_family_id(); 484 priv->ini.product_id = brcmstb_get_product_id(); 485 486 info = of_device_get_match_data(&pdev->dev); 487 if (!info) 488 return -ENOENT; 489 490 info->init_func(&priv->ini); 491 492 dev_dbg(dev, "Best mapping table is for %s\n", 493 priv->ini.family_name); 494 495 of_property_read_u32(dn, "brcm,ipp", &priv->ini.ipp); 496 of_property_read_u32(dn, "brcm,ioc", &priv->ini.ioc); 497 498 priv->ini.mode = USB_CTLR_MODE_HOST; 499 err = of_property_read_string(dn, "dr_mode", &mode); 500 if (err == 0) { 501 name_to_value(&brcm_dr_mode_to_name[0], 502 ARRAY_SIZE(brcm_dr_mode_to_name), 503 mode, &priv->ini.mode); 504 } 505 if (of_property_read_bool(dn, "brcm,has-xhci")) 506 priv->has_xhci = true; 507 if (of_property_read_bool(dn, "brcm,has-eohci")) 508 priv->has_eohci = true; 509 510 for (x = 0; x < BRCM_REGS_MAX; x++) { 511 if (info->required_regs[x] >= BRCM_REGS_MAX) 512 break; 513 514 err = brcm_usb_get_regs(pdev, info->required_regs[x], 515 &priv->ini, false); 516 if (err) 517 return -EINVAL; 518 } 519 if (info->optional_reg) { 520 err = brcm_usb_get_regs(pdev, info->optional_reg, 521 &priv->ini, true); 522 if (err) 523 return -EINVAL; 524 } 525 526 err = brcm_usb_phy_dvr_init(pdev, priv, dn); 527 if (err) 528 return err; 529 530 priv->pm_notifier.notifier_call = brcm_pm_notifier; 531 register_pm_notifier(&priv->pm_notifier); 532 533 mutex_init(&priv->mutex); 534 535 /* make sure invert settings are correct */ 536 brcm_usb_init_ipp(&priv->ini); 537 538 /* 539 * Create sysfs entries for mode. 540 * Remove "dual_select" attribute if not in dual mode 541 */ 542 if (priv->ini.mode != USB_CTLR_MODE_DRD) 543 brcm_usb_phy_attrs[1] = NULL; 544 err = sysfs_create_group(&dev->kobj, &brcm_usb_phy_group); 545 if (err) 546 dev_warn(dev, "Error creating sysfs attributes\n"); 547 548 /* Get piarbctl syscon if it exists */ 549 rmap = syscon_regmap_lookup_by_phandle(dev->of_node, 550 "syscon-piarbctl"); 551 if (IS_ERR(rmap)) 552 rmap = syscon_regmap_lookup_by_phandle(dev->of_node, 553 "brcm,syscon-piarbctl"); 554 if (!IS_ERR(rmap)) 555 priv->ini.syscon_piarbctl = rmap; 556 557 /* start with everything off */ 558 if (priv->has_xhci) 559 brcm_usb_uninit_xhci(&priv->ini); 560 if (priv->has_eohci) 561 brcm_usb_uninit_eohci(&priv->ini); 562 brcm_usb_uninit_common(&priv->ini); 563 clk_disable_unprepare(priv->usb_20_clk); 564 clk_disable_unprepare(priv->usb_30_clk); 565 566 phy_provider = devm_of_phy_provider_register(dev, brcm_usb_phy_xlate); 567 568 return PTR_ERR_OR_ZERO(phy_provider); 569 } 570 571 static int brcm_usb_phy_remove(struct platform_device *pdev) 572 { 573 struct brcm_usb_phy_data *priv = dev_get_drvdata(&pdev->dev); 574 575 sysfs_remove_group(&pdev->dev.kobj, &brcm_usb_phy_group); 576 unregister_pm_notifier(&priv->pm_notifier); 577 578 return 0; 579 } 580 581 #ifdef CONFIG_PM_SLEEP 582 static int brcm_usb_phy_suspend(struct device *dev) 583 { 584 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 585 586 if (priv->init_count) { 587 dev_dbg(dev, "SUSPEND\n"); 588 priv->ini.wake_enabled = device_may_wakeup(dev); 589 if (priv->phys[BRCM_USB_PHY_3_0].inited) 590 brcm_usb_uninit_xhci(&priv->ini); 591 if (priv->phys[BRCM_USB_PHY_2_0].inited) 592 brcm_usb_uninit_eohci(&priv->ini); 593 brcm_usb_uninit_common(&priv->ini); 594 595 /* 596 * Handle the clocks unless needed for wake. This has 597 * to work for both older XHCI->3.0-clks, EOHCI->2.0-clks 598 * and newer XHCI->2.0-clks/3.0-clks. 599 */ 600 601 if (!priv->ini.suspend_with_clocks) { 602 if (priv->phys[BRCM_USB_PHY_3_0].inited) 603 clk_disable_unprepare(priv->usb_30_clk); 604 if (priv->phys[BRCM_USB_PHY_2_0].inited || 605 !priv->has_eohci) 606 clk_disable_unprepare(priv->usb_20_clk); 607 } 608 if (priv->wake_irq >= 0) 609 enable_irq_wake(priv->wake_irq); 610 } 611 return 0; 612 } 613 614 static int brcm_usb_phy_resume(struct device *dev) 615 { 616 struct brcm_usb_phy_data *priv = dev_get_drvdata(dev); 617 618 clk_prepare_enable(priv->usb_20_clk); 619 clk_prepare_enable(priv->usb_30_clk); 620 brcm_usb_init_ipp(&priv->ini); 621 622 /* 623 * Initialize anything that was previously initialized. 624 * Uninitialize anything that wasn't previously initialized. 625 */ 626 if (priv->init_count) { 627 dev_dbg(dev, "RESUME\n"); 628 if (priv->wake_irq >= 0) 629 disable_irq_wake(priv->wake_irq); 630 brcm_usb_init_common(&priv->ini); 631 if (priv->phys[BRCM_USB_PHY_2_0].inited) { 632 brcm_usb_init_eohci(&priv->ini); 633 } else if (priv->has_eohci) { 634 brcm_usb_uninit_eohci(&priv->ini); 635 clk_disable_unprepare(priv->usb_20_clk); 636 } 637 if (priv->phys[BRCM_USB_PHY_3_0].inited) { 638 brcm_usb_init_xhci(&priv->ini); 639 } else if (priv->has_xhci) { 640 brcm_usb_uninit_xhci(&priv->ini); 641 clk_disable_unprepare(priv->usb_30_clk); 642 if (!priv->has_eohci) 643 clk_disable_unprepare(priv->usb_20_clk); 644 } 645 } else { 646 if (priv->has_xhci) 647 brcm_usb_uninit_xhci(&priv->ini); 648 if (priv->has_eohci) 649 brcm_usb_uninit_eohci(&priv->ini); 650 brcm_usb_uninit_common(&priv->ini); 651 clk_disable_unprepare(priv->usb_20_clk); 652 clk_disable_unprepare(priv->usb_30_clk); 653 } 654 priv->ini.wake_enabled = false; 655 return 0; 656 } 657 #endif /* CONFIG_PM_SLEEP */ 658 659 static const struct dev_pm_ops brcm_usb_phy_pm_ops = { 660 SET_LATE_SYSTEM_SLEEP_PM_OPS(brcm_usb_phy_suspend, brcm_usb_phy_resume) 661 }; 662 663 MODULE_DEVICE_TABLE(of, brcm_usb_dt_ids); 664 665 static struct platform_driver brcm_usb_driver = { 666 .probe = brcm_usb_phy_probe, 667 .remove = brcm_usb_phy_remove, 668 .driver = { 669 .name = "brcmstb-usb-phy", 670 .pm = &brcm_usb_phy_pm_ops, 671 .of_match_table = brcm_usb_dt_ids, 672 }, 673 }; 674 675 module_platform_driver(brcm_usb_driver); 676 677 MODULE_ALIAS("platform:brcmstb-usb-phy"); 678 MODULE_AUTHOR("Al Cooper <acooper@broadcom.com>"); 679 MODULE_DESCRIPTION("BRCM USB PHY driver"); 680 MODULE_LICENSE("GPL v2"); 681