drivers/phy/broadcom/phy-brcm-usb.c

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