drivers/usb/typec/tps6598x.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Driver for TI TPS6598x USB Power Delivery controller family
   4  *
   5  * Copyright (C) 2017, Intel Corporation
   6  * Author: Heikki Krogerus <[email protected]>
   7  */
   8
   9 #include <linux/i2c.h>
  10 #include <linux/acpi.h>
  11 #include <linux/module.h>
  12 #include <linux/power_supply.h>
  13 #include <linux/regmap.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/usb/typec.h>
  16 #include <linux/usb/role.h>
  17
  18 /* Register offsets */
  19 #define TPS_REG_VID                     0x00
  20 #define TPS_REG_MODE                    0x03
  21 #define TPS_REG_CMD1                    0x08
  22 #define TPS_REG_DATA1                   0x09
  23 #define TPS_REG_INT_EVENT1              0x14
  24 #define TPS_REG_INT_EVENT2              0x15
  25 #define TPS_REG_INT_MASK1               0x16
  26 #define TPS_REG_INT_MASK2               0x17
  27 #define TPS_REG_INT_CLEAR1              0x18
  28 #define TPS_REG_INT_CLEAR2              0x19
  29 #define TPS_REG_STATUS                  0x1a
  30 #define TPS_REG_SYSTEM_CONF             0x28
  31 #define TPS_REG_CTRL_CONF               0x29
  32 #define TPS_REG_POWER_STATUS            0x3f
  33 #define TPS_REG_RX_IDENTITY_SOP         0x48
  34
  35 /* TPS_REG_INT_* bits */
  36 #define TPS_REG_INT_PLUG_EVENT          BIT(3)
  37
  38 /* TPS_REG_STATUS bits */
  39 #define TPS_STATUS_PLUG_PRESENT         BIT(0)
  40 #define TPS_STATUS_ORIENTATION          BIT(4)
  41 #define TPS_STATUS_PORTROLE(s)          (!!((s) & BIT(5)))
  42 #define TPS_STATUS_DATAROLE(s)          (!!((s) & BIT(6)))
  43 #define TPS_STATUS_VCONN(s)             (!!((s) & BIT(7)))
  44
  45 /* TPS_REG_SYSTEM_CONF bits */
  46 #define TPS_SYSCONF_PORTINFO(c)         ((c) & 7)
  47
  48 enum {
  49         TPS_PORTINFO_SINK,
  50         TPS_PORTINFO_SINK_ACCESSORY,
  51         TPS_PORTINFO_DRP_UFP,
  52         TPS_PORTINFO_DRP_UFP_DRD,
  53         TPS_PORTINFO_DRP_DFP,
  54         TPS_PORTINFO_DRP_DFP_DRD,
  55         TPS_PORTINFO_SOURCE,
  56 };
  57
  58 /* TPS_REG_POWER_STATUS bits */
  59 #define TPS_POWER_STATUS_CONNECTION     BIT(0)
  60 #define TPS_POWER_STATUS_SOURCESINK     BIT(1)
  61 #define TPS_POWER_STATUS_PWROPMODE(p)   (((p) & GENMASK(3, 2)) >> 2)
  62
  63 /* TPS_REG_RX_IDENTITY_SOP */
  64 struct tps6598x_rx_identity_reg {
  65         u8 status;
  66         struct usb_pd_identity identity;
  67         u32 vdo[3];
  68 } __packed;
  69
  70 /* Standard Task return codes */
  71 #define TPS_TASK_TIMEOUT                1
  72 #define TPS_TASK_REJECTED               3
  73
  74 enum {
  75         TPS_MODE_APP,
  76         TPS_MODE_BOOT,
  77         TPS_MODE_BIST,
  78         TPS_MODE_DISC,
  79 };
  80
  81 static const char *const modes[] = {
  82         [TPS_MODE_APP]  = "APP ",
  83         [TPS_MODE_BOOT] = "BOOT",
  84         [TPS_MODE_BIST] = "BIST",
  85         [TPS_MODE_DISC] = "DISC",
  86 };
  87
  88 /* Unrecognized commands will be replaced with "!CMD" */
  89 #define INVALID_CMD(_cmd_)              (_cmd_ == 0x444d4321)
  90
  91 struct tps6598x {
  92         struct device *dev;
  93         struct regmap *regmap;
  94         struct mutex lock; /* device lock */
  95         u8 i2c_protocol:1;
  96
  97         struct typec_port *port;
  98         struct typec_partner *partner;
  99         struct usb_pd_identity partner_identity;
 100         struct usb_role_switch *role_sw;
 101         struct typec_capability typec_cap;
 102
 103         struct power_supply *psy;
 104         struct power_supply_desc psy_desc;
 105         enum power_supply_usb_type usb_type;
 106 };
 107
 108 static enum power_supply_property tps6598x_psy_props[] = {
 109         POWER_SUPPLY_PROP_USB_TYPE,
 110         POWER_SUPPLY_PROP_ONLINE,
 111 };
 112
 113 static enum power_supply_usb_type tps6598x_psy_usb_types[] = {
 114         POWER_SUPPLY_USB_TYPE_C,
 115         POWER_SUPPLY_USB_TYPE_PD,
 116 };
 117
 118 static const char *tps6598x_psy_name_prefix = "tps6598x-source-psy-";
 119
 120 /*
 121  * Max data bytes for Data1, Data2, and other registers. See ch 1.3.2:
 122  * https://www.ti.com/lit/ug/slvuan1a/slvuan1a.pdf
 123  */
 124 #define TPS_MAX_LEN     64
 125
 126 static int
 127 tps6598x_block_read(struct tps6598x *tps, u8 reg, void *val, size_t len)
 128 {
 129         u8 data[TPS_MAX_LEN + 1];
 130         int ret;
 131
 132         if (WARN_ON(len + 1 > sizeof(data)))
 133                 return -EINVAL;
 134
 135         if (!tps->i2c_protocol)
 136                 return regmap_raw_read(tps->regmap, reg, val, len);
 137
 138         ret = regmap_raw_read(tps->regmap, reg, data, sizeof(data));
 139         if (ret)
 140                 return ret;
 141
 142         if (data[0] < len)
 143                 return -EIO;
 144
 145         memcpy(val, &data[1], len);
 146         return 0;
 147 }
 148
 149 static int tps6598x_block_write(struct tps6598x *tps, u8 reg,
 150                                 const void *val, size_t len)
 151 {
 152         u8 data[TPS_MAX_LEN + 1];
 153
 154         if (!tps->i2c_protocol)
 155                 return regmap_raw_write(tps->regmap, reg, val, len);
 156
 157         data[0] = len;
 158         memcpy(&data[1], val, len);
 159
 160         return regmap_raw_write(tps->regmap, reg, data, sizeof(data));
 161 }
 162
 163 static inline int tps6598x_read16(struct tps6598x *tps, u8 reg, u16 *val)
 164 {
 165         return tps6598x_block_read(tps, reg, val, sizeof(u16));
 166 }
 167
 168 static inline int tps6598x_read32(struct tps6598x *tps, u8 reg, u32 *val)
 169 {
 170         return tps6598x_block_read(tps, reg, val, sizeof(u32));
 171 }
 172
 173 static inline int tps6598x_read64(struct tps6598x *tps, u8 reg, u64 *val)
 174 {
 175         return tps6598x_block_read(tps, reg, val, sizeof(u64));
 176 }
 177
 178 static inline int tps6598x_write16(struct tps6598x *tps, u8 reg, u16 val)
 179 {
 180         return tps6598x_block_write(tps, reg, &val, sizeof(u16));
 181 }
 182
 183 static inline int tps6598x_write32(struct tps6598x *tps, u8 reg, u32 val)
 184 {
 185         return tps6598x_block_write(tps, reg, &val, sizeof(u32));
 186 }
 187
 188 static inline int tps6598x_write64(struct tps6598x *tps, u8 reg, u64 val)
 189 {
 190         return tps6598x_block_write(tps, reg, &val, sizeof(u64));
 191 }
 192
 193 static inline int
 194 tps6598x_write_4cc(struct tps6598x *tps, u8 reg, const char *val)
 195 {
 196         return tps6598x_block_write(tps, reg, val, 4);
 197 }
 198
 199 static int tps6598x_read_partner_identity(struct tps6598x *tps)
 200 {
 201         struct tps6598x_rx_identity_reg id;
 202         int ret;
 203
 204         ret = tps6598x_block_read(tps, TPS_REG_RX_IDENTITY_SOP,
 205                                   &id, sizeof(id));
 206         if (ret)
 207                 return ret;
 208
 209         tps->partner_identity = id.identity;
 210
 211         return 0;
 212 }
 213
 214 static void tps6598x_set_data_role(struct tps6598x *tps,
 215                                    enum typec_data_role role, bool connected)
 216 {
 217         enum usb_role role_val;
 218
 219         if (role == TYPEC_HOST)
 220                 role_val = USB_ROLE_HOST;
 221         else
 222                 role_val = USB_ROLE_DEVICE;
 223
 224         if (!connected)
 225                 role_val = USB_ROLE_NONE;
 226
 227         usb_role_switch_set_role(tps->role_sw, role_val);
 228         typec_set_data_role(tps->port, role);
 229 }
 230
 231 static int tps6598x_connect(struct tps6598x *tps, u32 status)
 232 {
 233         struct typec_partner_desc desc;
 234         enum typec_pwr_opmode mode;
 235         u16 pwr_status;
 236         int ret;
 237
 238         if (tps->partner)
 239                 return 0;
 240
 241         ret = tps6598x_read16(tps, TPS_REG_POWER_STATUS, &pwr_status);
 242         if (ret < 0)
 243                 return ret;
 244
 245         mode = TPS_POWER_STATUS_PWROPMODE(pwr_status);
 246
 247         desc.usb_pd = mode == TYPEC_PWR_MODE_PD;
 248         desc.accessory = TYPEC_ACCESSORY_NONE; /* XXX: handle accessories */
 249         desc.identity = NULL;
 250
 251         if (desc.usb_pd) {
 252                 ret = tps6598x_read_partner_identity(tps);
 253                 if (ret)
 254                         return ret;
 255                 desc.identity = &tps->partner_identity;
 256         }
 257
 258         typec_set_pwr_opmode(tps->port, mode);
 259         typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status));
 260         typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status));
 261         tps6598x_set_data_role(tps, TPS_STATUS_DATAROLE(status), true);
 262
 263         tps->partner = typec_register_partner(tps->port, &desc);
 264         if (IS_ERR(tps->partner))
 265                 return PTR_ERR(tps->partner);
 266
 267         if (desc.identity)
 268                 typec_partner_set_identity(tps->partner);
 269
 270         power_supply_changed(tps->psy);
 271
 272         return 0;
 273 }
 274
 275 static void tps6598x_disconnect(struct tps6598x *tps, u32 status)
 276 {
 277         if (!IS_ERR(tps->partner))
 278                 typec_unregister_partner(tps->partner);
 279         tps->partner = NULL;
 280         typec_set_pwr_opmode(tps->port, TYPEC_PWR_MODE_USB);
 281         typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status));
 282         typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status));
 283         tps6598x_set_data_role(tps, TPS_STATUS_DATAROLE(status), false);
 284         power_supply_changed(tps->psy);
 285 }
 286
 287 static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
 288                              size_t in_len, u8 *in_data,
 289                              size_t out_len, u8 *out_data)
 290 {
 291         unsigned long timeout;
 292         u32 val;
 293         int ret;
 294
 295         ret = tps6598x_read32(tps, TPS_REG_CMD1, &val);
 296         if (ret)
 297                 return ret;
 298         if (val && !INVALID_CMD(val))
 299                 return -EBUSY;
 300
 301         if (in_len) {
 302                 ret = tps6598x_block_write(tps, TPS_REG_DATA1,
 303                                            in_data, in_len);
 304                 if (ret)
 305                         return ret;
 306         }
 307
 308         ret = tps6598x_write_4cc(tps, TPS_REG_CMD1, cmd);
 309         if (ret < 0)
 310                 return ret;
 311
 312         /* XXX: Using 1s for now, but it may not be enough for every command. */
 313         timeout = jiffies + msecs_to_jiffies(1000);
 314
 315         do {
 316                 ret = tps6598x_read32(tps, TPS_REG_CMD1, &val);
 317                 if (ret)
 318                         return ret;
 319                 if (INVALID_CMD(val))
 320                         return -EINVAL;
 321
 322                 if (time_is_before_jiffies(timeout))
 323                         return -ETIMEDOUT;
 324         } while (val);
 325
 326         if (out_len) {
 327                 ret = tps6598x_block_read(tps, TPS_REG_DATA1,
 328                                           out_data, out_len);
 329                 if (ret)
 330                         return ret;
 331                 val = out_data[0];
 332         } else {
 333                 ret = tps6598x_block_read(tps, TPS_REG_DATA1, &val, sizeof(u8));
 334                 if (ret)
 335                         return ret;
 336         }
 337
 338         switch (val) {
 339         case TPS_TASK_TIMEOUT:
 340                 return -ETIMEDOUT;
 341         case TPS_TASK_REJECTED:
 342                 return -EPERM;
 343         default:
 344                 break;
 345         }
 346
 347         return 0;
 348 }
 349
 350 static int tps6598x_dr_set(struct typec_port *port, enum typec_data_role role)
 351 {
 352         const char *cmd = (role == TYPEC_DEVICE) ? "SWUF" : "SWDF";
 353         struct tps6598x *tps = typec_get_drvdata(port);
 354         u32 status;
 355         int ret;
 356
 357         mutex_lock(&tps->lock);
 358
 359         ret = tps6598x_exec_cmd(tps, cmd, 0, NULL, 0, NULL);
 360         if (ret)
 361                 goto out_unlock;
 362
 363         ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
 364         if (ret)
 365                 goto out_unlock;
 366
 367         if (role != TPS_STATUS_DATAROLE(status)) {
 368                 ret = -EPROTO;
 369                 goto out_unlock;
 370         }
 371
 372         tps6598x_set_data_role(tps, role, true);
 373
 374 out_unlock:
 375         mutex_unlock(&tps->lock);
 376
 377         return ret;
 378 }
 379
 380 static int tps6598x_pr_set(struct typec_port *port, enum typec_role role)
 381 {
 382         const char *cmd = (role == TYPEC_SINK) ? "SWSk" : "SWSr";
 383         struct tps6598x *tps = typec_get_drvdata(port);
 384         u32 status;
 385         int ret;
 386
 387         mutex_lock(&tps->lock);
 388
 389         ret = tps6598x_exec_cmd(tps, cmd, 0, NULL, 0, NULL);
 390         if (ret)
 391                 goto out_unlock;
 392
 393         ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
 394         if (ret)
 395                 goto out_unlock;
 396
 397         if (role != TPS_STATUS_PORTROLE(status)) {
 398                 ret = -EPROTO;
 399                 goto out_unlock;
 400         }
 401
 402         typec_set_pwr_role(tps->port, role);
 403
 404 out_unlock:
 405         mutex_unlock(&tps->lock);
 406
 407         return ret;
 408 }
 409
 410 static const struct typec_operations tps6598x_ops = {
 411         .dr_set = tps6598x_dr_set,
 412         .pr_set = tps6598x_pr_set,
 413 };
 414
 415 static irqreturn_t tps6598x_interrupt(int irq, void *data)
 416 {
 417         struct tps6598x *tps = data;
 418         u64 event1;
 419         u64 event2;
 420         u32 status;
 421         int ret;
 422
 423         mutex_lock(&tps->lock);
 424
 425         ret = tps6598x_read64(tps, TPS_REG_INT_EVENT1, &event1);
 426         ret |= tps6598x_read64(tps, TPS_REG_INT_EVENT2, &event2);
 427         if (ret) {
 428                 dev_err(tps->dev, "%s: failed to read events\n", __func__);
 429                 goto err_unlock;
 430         }
 431
 432         ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
 433         if (ret) {
 434                 dev_err(tps->dev, "%s: failed to read status\n", __func__);
 435                 goto err_clear_ints;
 436         }
 437
 438         /* Handle plug insert or removal */
 439         if ((event1 | event2) & TPS_REG_INT_PLUG_EVENT) {
 440                 if (status & TPS_STATUS_PLUG_PRESENT) {
 441                         ret = tps6598x_connect(tps, status);
 442                         if (ret)
 443                                 dev_err(tps->dev,
 444                                         "failed to register partner\n");
 445                 } else {
 446                         tps6598x_disconnect(tps, status);
 447                 }
 448         }
 449
 450 err_clear_ints:
 451         tps6598x_write64(tps, TPS_REG_INT_CLEAR1, event1);
 452         tps6598x_write64(tps, TPS_REG_INT_CLEAR2, event2);
 453
 454 err_unlock:
 455         mutex_unlock(&tps->lock);
 456
 457         return IRQ_HANDLED;
 458 }
 459
 460 static int tps6598x_check_mode(struct tps6598x *tps)
 461 {
 462         char mode[5] = { };
 463         int ret;
 464
 465         ret = tps6598x_read32(tps, TPS_REG_MODE, (void *)mode);
 466         if (ret)
 467                 return ret;
 468
 469         switch (match_string(modes, ARRAY_SIZE(modes), mode)) {
 470         case TPS_MODE_APP:
 471                 return 0;
 472         case TPS_MODE_BOOT:
 473                 dev_warn(tps->dev, "dead-battery condition\n");
 474                 return 0;
 475         case TPS_MODE_BIST:
 476         case TPS_MODE_DISC:
 477         default:
 478                 dev_err(tps->dev, "controller in unsupported mode \"%s\"\n",
 479                         mode);
 480                 break;
 481         }
 482
 483         return -ENODEV;
 484 }
 485
 486 static const struct regmap_config tps6598x_regmap_config = {
 487         .reg_bits = 8,
 488         .val_bits = 8,
 489         .max_register = 0x7F,
 490 };
 491
 492 static int tps6598x_psy_get_online(struct tps6598x *tps,
 493                                    union power_supply_propval *val)
 494 {
 495         int ret;
 496         u16 pwr_status;
 497
 498         ret = tps6598x_read16(tps, TPS_REG_POWER_STATUS, &pwr_status);
 499         if (ret < 0)
 500                 return ret;
 501
 502         if ((pwr_status & TPS_POWER_STATUS_CONNECTION) &&
 503             (pwr_status & TPS_POWER_STATUS_SOURCESINK)) {
 504                 val->intval = 1;
 505         } else {
 506                 val->intval = 0;
 507         }
 508         return 0;
 509 }
 510
 511 static int tps6598x_psy_get_prop(struct power_supply *psy,
 512                                  enum power_supply_property psp,
 513                                  union power_supply_propval *val)
 514 {
 515         struct tps6598x *tps = power_supply_get_drvdata(psy);
 516         u16 pwr_status;
 517         int ret = 0;
 518
 519         switch (psp) {
 520         case POWER_SUPPLY_PROP_USB_TYPE:
 521                 ret = tps6598x_read16(tps, TPS_REG_POWER_STATUS, &pwr_status);
 522                 if (ret < 0)
 523                         return ret;
 524                 if (TPS_POWER_STATUS_PWROPMODE(pwr_status) == TYPEC_PWR_MODE_PD)
 525                         val->intval = POWER_SUPPLY_USB_TYPE_PD;
 526                 else
 527                         val->intval = POWER_SUPPLY_USB_TYPE_C;
 528                 break;
 529         case POWER_SUPPLY_PROP_ONLINE:
 530                 ret = tps6598x_psy_get_online(tps, val);
 531                 break;
 532         default:
 533                 ret = -EINVAL;
 534                 break;
 535         }
 536
 537         return ret;
 538 }
 539
 540 static int devm_tps6598_psy_register(struct tps6598x *tps)
 541 {
 542         struct power_supply_config psy_cfg = {};
 543         const char *port_dev_name = dev_name(tps->dev);
 544         char *psy_name;
 545
 546         psy_cfg.drv_data = tps;
 547         psy_cfg.fwnode = dev_fwnode(tps->dev);
 548
 549         psy_name = devm_kasprintf(tps->dev, GFP_KERNEL, "%s%s", tps6598x_psy_name_prefix,
 550                                   port_dev_name);
 551         if (!psy_name)
 552                 return -ENOMEM;
 553
 554         tps->psy_desc.name = psy_name;
 555         tps->psy_desc.type = POWER_SUPPLY_TYPE_USB;
 556         tps->psy_desc.usb_types = tps6598x_psy_usb_types;
 557         tps->psy_desc.num_usb_types = ARRAY_SIZE(tps6598x_psy_usb_types);
 558         tps->psy_desc.properties = tps6598x_psy_props;
 559         tps->psy_desc.num_properties = ARRAY_SIZE(tps6598x_psy_props);
 560         tps->psy_desc.get_property = tps6598x_psy_get_prop;
 561
 562         tps->usb_type = POWER_SUPPLY_USB_TYPE_C;
 563
 564         tps->psy = devm_power_supply_register(tps->dev, &tps->psy_desc,
 565                                                &psy_cfg);
 566         return PTR_ERR_OR_ZERO(tps->psy);
 567 }
 568
 569 static int tps6598x_probe(struct i2c_client *client)
 570 {
 571         struct typec_capability typec_cap = { };
 572         struct tps6598x *tps;
 573         struct fwnode_handle *fwnode;
 574         u32 status;
 575         u32 conf;
 576         u32 vid;
 577         int ret;
 578
 579         tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
 580         if (!tps)
 581                 return -ENOMEM;
 582
 583         mutex_init(&tps->lock);
 584         tps->dev = &client->dev;
 585
 586         tps->regmap = devm_regmap_init_i2c(client, &tps6598x_regmap_config);
 587         if (IS_ERR(tps->regmap))
 588                 return PTR_ERR(tps->regmap);
 589
 590         ret = tps6598x_read32(tps, TPS_REG_VID, &vid);
 591         if (ret < 0 || !vid)
 592                 return -ENODEV;
 593
 594         /*
 595          * Checking can the adapter handle SMBus protocol. If it can not, the
 596          * driver needs to take care of block reads separately.
 597          *
 598          * FIXME: Testing with I2C_FUNC_I2C. regmap-i2c uses I2C protocol
 599          * unconditionally if the adapter has I2C_FUNC_I2C set.
 600          */
 601         if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
 602                 tps->i2c_protocol = true;
 603
 604         /* Make sure the controller has application firmware running */
 605         ret = tps6598x_check_mode(tps);
 606         if (ret)
 607                 return ret;
 608
 609         ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
 610         if (ret < 0)
 611                 return ret;
 612
 613         ret = tps6598x_read32(tps, TPS_REG_SYSTEM_CONF, &conf);
 614         if (ret < 0)
 615                 return ret;
 616
 617         fwnode = device_get_named_child_node(&client->dev, "connector");
 618         if (IS_ERR(fwnode))
 619                 return PTR_ERR(fwnode);
 620
 621         tps->role_sw = fwnode_usb_role_switch_get(fwnode);
 622         if (IS_ERR(tps->role_sw)) {
 623                 ret = PTR_ERR(tps->role_sw);
 624                 goto err_fwnode_put;
 625         }
 626
 627         typec_cap.revision = USB_TYPEC_REV_1_2;
 628         typec_cap.pd_revision = 0x200;
 629         typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
 630         typec_cap.driver_data = tps;
 631         typec_cap.ops = &tps6598x_ops;
 632         typec_cap.fwnode = fwnode;
 633
 634         switch (TPS_SYSCONF_PORTINFO(conf)) {
 635         case TPS_PORTINFO_SINK_ACCESSORY:
 636         case TPS_PORTINFO_SINK:
 637                 typec_cap.type = TYPEC_PORT_SNK;
 638                 typec_cap.data = TYPEC_PORT_UFP;
 639                 break;
 640         case TPS_PORTINFO_DRP_UFP_DRD:
 641         case TPS_PORTINFO_DRP_DFP_DRD:
 642                 typec_cap.type = TYPEC_PORT_DRP;
 643                 typec_cap.data = TYPEC_PORT_DRD;
 644                 break;
 645         case TPS_PORTINFO_DRP_UFP:
 646                 typec_cap.type = TYPEC_PORT_DRP;
 647                 typec_cap.data = TYPEC_PORT_UFP;
 648                 break;
 649         case TPS_PORTINFO_DRP_DFP:
 650                 typec_cap.type = TYPEC_PORT_DRP;
 651                 typec_cap.data = TYPEC_PORT_DFP;
 652                 break;
 653         case TPS_PORTINFO_SOURCE:
 654                 typec_cap.type = TYPEC_PORT_SRC;
 655                 typec_cap.data = TYPEC_PORT_DFP;
 656                 break;
 657         default:
 658                 ret = -ENODEV;
 659                 goto err_role_put;
 660         }
 661
 662         ret = devm_tps6598_psy_register(tps);
 663         if (ret)
 664                 return ret;
 665
 666         tps->port = typec_register_port(&client->dev, &typec_cap);
 667         if (IS_ERR(tps->port)) {
 668                 ret = PTR_ERR(tps->port);
 669                 goto err_role_put;
 670         }
 671         fwnode_handle_put(fwnode);
 672
 673         if (status & TPS_STATUS_PLUG_PRESENT) {
 674                 ret = tps6598x_connect(tps, status);
 675                 if (ret)
 676                         dev_err(&client->dev, "failed to register partner\n");
 677         }
 678
 679         ret = devm_request_threaded_irq(&client->dev, client->irq, NULL,
 680                                         tps6598x_interrupt,
 681                                         IRQF_SHARED | IRQF_ONESHOT,
 682                                         dev_name(&client->dev), tps);
 683         if (ret) {
 684                 tps6598x_disconnect(tps, 0);
 685                 typec_unregister_port(tps->port);
 686                 goto err_role_put;
 687         }
 688
 689         i2c_set_clientdata(client, tps);
 690
 691         return 0;
 692
 693 err_role_put:
 694         usb_role_switch_put(tps->role_sw);
 695 err_fwnode_put:
 696         fwnode_handle_put(fwnode);
 697
 698         return ret;
 699 }
 700
 701 static int tps6598x_remove(struct i2c_client *client)
 702 {
 703         struct tps6598x *tps = i2c_get_clientdata(client);
 704
 705         tps6598x_disconnect(tps, 0);
 706         typec_unregister_port(tps->port);
 707         usb_role_switch_put(tps->role_sw);
 708
 709         return 0;
 710 }
 711
 712 static const struct of_device_id tps6598x_of_match[] = {
 713         { .compatible = "ti,tps6598x", },
 714         {}
 715 };
 716 MODULE_DEVICE_TABLE(of, tps6598x_of_match);
 717
 718 static const struct i2c_device_id tps6598x_id[] = {
 719         { "tps6598x" },
 720         { }
 721 };
 722 MODULE_DEVICE_TABLE(i2c, tps6598x_id);
 723
 724 static struct i2c_driver tps6598x_i2c_driver = {
 725         .driver = {
 726                 .name = "tps6598x",
 727                 .of_match_table = tps6598x_of_match,
 728         },
 729         .probe_new = tps6598x_probe,
 730         .remove = tps6598x_remove,
 731         .id_table = tps6598x_id,
 732 };
 733 module_i2c_driver(tps6598x_i2c_driver);
 734
 735 MODULE_AUTHOR("Heikki Krogerus <[email protected]>");
 736 MODULE_LICENSE("GPL v2");
 737 MODULE_DESCRIPTION("TI TPS6598x USB Power Delivery Controller Driver");