drivers/regulator/pv88080-regulator.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 //
   3 // pv88080-regulator.c - Regulator device driver for PV88080
   4 // Copyright (C) 2016  Powerventure Semiconductor Ltd.
   5
   6 #include <linux/err.h>
   7 #include <linux/i2c.h>
   8 #include <linux/module.h>
   9 #include <linux/of.h>
  10 #include <linux/init.h>
  11 #include <linux/slab.h>
  12 #include <linux/regulator/driver.h>
  13 #include <linux/regulator/machine.h>
  14 #include <linux/regmap.h>
  15 #include <linux/irq.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/regulator/of_regulator.h>
  18 #include "pv88080-regulator.h"
  19
  20 #define PV88080_MAX_REGULATORS  4
  21
  22 /* PV88080 REGULATOR IDs */
  23 enum {
  24         /* BUCKs */
  25         PV88080_ID_BUCK1,
  26         PV88080_ID_BUCK2,
  27         PV88080_ID_BUCK3,
  28         PV88080_ID_HVBUCK,
  29 };
  30
  31 enum pv88080_types {
  32         TYPE_PV88080_AA,
  33         TYPE_PV88080_BA,
  34 };
  35
  36 struct pv88080_regulator {
  37         struct regulator_desc desc;
  38         unsigned int mode_reg;
  39         unsigned int conf2;
  40         unsigned int conf5;
  41 };
  42
  43 struct pv88080 {
  44         struct device *dev;
  45         struct regmap *regmap;
  46         struct regulator_dev *rdev[PV88080_MAX_REGULATORS];
  47         unsigned long type;
  48         const struct pv88080_compatible_regmap *regmap_config;
  49 };
  50
  51 struct pv88080_buck_voltage {
  52         int min_uV;
  53         int max_uV;
  54         int uV_step;
  55 };
  56
  57 struct pv88080_buck_regmap {
  58         /* REGS */
  59         int buck_enable_reg;
  60         int buck_vsel_reg;
  61         int buck_mode_reg;
  62         int buck_limit_reg;
  63         int buck_vdac_range_reg;
  64         int buck_vrange_gain_reg;
  65         /* MASKS */
  66         int buck_enable_mask;
  67         int buck_vsel_mask;
  68         int buck_limit_mask;
  69 };
  70
  71 struct pv88080_compatible_regmap {
  72         /* BUCK1, 2, 3 */
  73         struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1];
  74         /* HVBUCK */
  75         int hvbuck_enable_reg;
  76         int hvbuck_vsel_reg;
  77         int hvbuck_enable_mask;
  78         int hvbuck_vsel_mask;
  79 };
  80
  81 static const struct regmap_config pv88080_regmap_config = {
  82         .reg_bits = 8,
  83         .val_bits = 8,
  84 };
  85
  86 /* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
  87  * Entry indexes corresponds to register values.
  88  */
  89
  90 static const unsigned int pv88080_buck1_limits[] = {
  91         3230000, 5130000, 6960000, 8790000
  92 };
  93
  94 static const unsigned int pv88080_buck23_limits[] = {
  95         1496000, 2393000, 3291000, 4189000
  96 };
  97
  98 static const struct pv88080_buck_voltage pv88080_buck_vol[2] = {
  99         {
 100                 .min_uV = 600000,
 101                 .max_uV = 1393750,
 102                 .uV_step = 6250,
 103         },
 104         {
 105                 .min_uV = 1400000,
 106                 .max_uV = 2193750,
 107                 .uV_step = 6250,
 108         },
 109 };
 110
 111 static const struct pv88080_compatible_regmap pv88080_aa_regs = {
 112         /* BUCK1 */
 113         .buck_regmap[0] = {
 114                 .buck_enable_reg      = PV88080AA_REG_BUCK1_CONF0,
 115                 .buck_vsel_reg        = PV88080AA_REG_BUCK1_CONF0,
 116                 .buck_mode_reg        = PV88080AA_REG_BUCK1_CONF1,
 117                 .buck_limit_reg       = PV88080AA_REG_BUCK1_CONF1,
 118                 .buck_vdac_range_reg  = PV88080AA_REG_BUCK1_CONF2,
 119                 .buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5,
 120                 .buck_enable_mask     = PV88080_BUCK1_EN,
 121                 .buck_vsel_mask       = PV88080_VBUCK1_MASK,
 122                 .buck_limit_mask      = PV88080_BUCK1_ILIM_MASK,
 123         },
 124         /* BUCK2 */
 125         .buck_regmap[1] = {
 126                 .buck_enable_reg      = PV88080AA_REG_BUCK2_CONF0,
 127                 .buck_vsel_reg        = PV88080AA_REG_BUCK2_CONF0,
 128                 .buck_mode_reg        = PV88080AA_REG_BUCK2_CONF1,
 129                 .buck_limit_reg       = PV88080AA_REG_BUCK2_CONF1,
 130                 .buck_vdac_range_reg  = PV88080AA_REG_BUCK2_CONF2,
 131                 .buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5,
 132                 .buck_enable_mask         = PV88080_BUCK2_EN,
 133                 .buck_vsel_mask       = PV88080_VBUCK2_MASK,
 134                 .buck_limit_mask      = PV88080_BUCK2_ILIM_MASK,
 135         },
 136         /* BUCK3 */
 137         .buck_regmap[2] = {
 138                 .buck_enable_reg          = PV88080AA_REG_BUCK3_CONF0,
 139                 .buck_vsel_reg        = PV88080AA_REG_BUCK3_CONF0,
 140                 .buck_mode_reg        = PV88080AA_REG_BUCK3_CONF1,
 141                 .buck_limit_reg       = PV88080AA_REG_BUCK3_CONF1,
 142                 .buck_vdac_range_reg  = PV88080AA_REG_BUCK3_CONF2,
 143                 .buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5,
 144                 .buck_enable_mask         = PV88080_BUCK3_EN,
 145                 .buck_vsel_mask       = PV88080_VBUCK3_MASK,
 146                 .buck_limit_mask      = PV88080_BUCK3_ILIM_MASK,
 147         },
 148         /* HVBUCK */
 149         .hvbuck_enable_reg            = PV88080AA_REG_HVBUCK_CONF2,
 150         .hvbuck_vsel_reg          = PV88080AA_REG_HVBUCK_CONF1,
 151         .hvbuck_enable_mask       = PV88080_HVBUCK_EN,
 152         .hvbuck_vsel_mask         = PV88080_VHVBUCK_MASK,
 153 };
 154
 155 static const struct pv88080_compatible_regmap pv88080_ba_regs = {
 156         /* BUCK1 */
 157         .buck_regmap[0] = {
 158                 .buck_enable_reg          = PV88080BA_REG_BUCK1_CONF0,
 159                 .buck_vsel_reg        = PV88080BA_REG_BUCK1_CONF0,
 160                 .buck_mode_reg        = PV88080BA_REG_BUCK1_CONF1,
 161                 .buck_limit_reg       = PV88080BA_REG_BUCK1_CONF1,
 162                 .buck_vdac_range_reg  = PV88080BA_REG_BUCK1_CONF2,
 163                 .buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5,
 164                 .buck_enable_mask     = PV88080_BUCK1_EN,
 165                 .buck_vsel_mask       = PV88080_VBUCK1_MASK,
 166                 .buck_limit_mask          = PV88080_BUCK1_ILIM_MASK,
 167         },
 168         /* BUCK2 */
 169         .buck_regmap[1] = {
 170                 .buck_enable_reg          = PV88080BA_REG_BUCK2_CONF0,
 171                 .buck_vsel_reg        = PV88080BA_REG_BUCK2_CONF0,
 172                 .buck_mode_reg        = PV88080BA_REG_BUCK2_CONF1,
 173                 .buck_limit_reg       = PV88080BA_REG_BUCK2_CONF1,
 174                 .buck_vdac_range_reg  = PV88080BA_REG_BUCK2_CONF2,
 175                 .buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5,
 176                 .buck_enable_mask         = PV88080_BUCK2_EN,
 177                 .buck_vsel_mask       = PV88080_VBUCK2_MASK,
 178                 .buck_limit_mask          = PV88080_BUCK2_ILIM_MASK,
 179         },
 180         /* BUCK3 */
 181         .buck_regmap[2] = {
 182                 .buck_enable_reg          = PV88080BA_REG_BUCK3_CONF0,
 183                 .buck_vsel_reg        = PV88080BA_REG_BUCK3_CONF0,
 184                 .buck_mode_reg        = PV88080BA_REG_BUCK3_CONF1,
 185                 .buck_limit_reg       = PV88080BA_REG_BUCK3_CONF1,
 186                 .buck_vdac_range_reg  = PV88080BA_REG_BUCK3_CONF2,
 187                 .buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5,
 188                 .buck_enable_mask         = PV88080_BUCK3_EN,
 189                 .buck_vsel_mask       = PV88080_VBUCK3_MASK,
 190                 .buck_limit_mask          = PV88080_BUCK3_ILIM_MASK,
 191         },
 192         /* HVBUCK */
 193         .hvbuck_enable_reg            = PV88080BA_REG_HVBUCK_CONF2,
 194         .hvbuck_vsel_reg          = PV88080BA_REG_HVBUCK_CONF1,
 195         .hvbuck_enable_mask       = PV88080_HVBUCK_EN,
 196         .hvbuck_vsel_mask                 = PV88080_VHVBUCK_MASK,
 197 };
 198
 199 #ifdef CONFIG_OF
 200 static const struct of_device_id pv88080_dt_ids[] = {
 201         { .compatible = "pvs,pv88080",    .data = (void *)TYPE_PV88080_AA },
 202         { .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA },
 203         { .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA },
 204         {},
 205 };
 206 MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
 207 #endif
 208
 209 static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
 210 {
 211         struct pv88080_regulator *info = rdev_get_drvdata(rdev);
 212         unsigned int data;
 213         int ret, mode = 0;
 214
 215         ret = regmap_read(rdev->regmap, info->mode_reg, &data);
 216         if (ret < 0)
 217                 return ret;
 218
 219         switch (data & PV88080_BUCK1_MODE_MASK) {
 220         case PV88080_BUCK_MODE_SYNC:
 221                 mode = REGULATOR_MODE_FAST;
 222                 break;
 223         case PV88080_BUCK_MODE_AUTO:
 224                 mode = REGULATOR_MODE_NORMAL;
 225                 break;
 226         case PV88080_BUCK_MODE_SLEEP:
 227                 mode = REGULATOR_MODE_STANDBY;
 228                 break;
 229         default:
 230                 return -EINVAL;
 231         }
 232
 233         return mode;
 234 }
 235
 236 static int pv88080_buck_set_mode(struct regulator_dev *rdev,
 237                                         unsigned int mode)
 238 {
 239         struct pv88080_regulator *info = rdev_get_drvdata(rdev);
 240         int val = 0;
 241
 242         switch (mode) {
 243         case REGULATOR_MODE_FAST:
 244                 val = PV88080_BUCK_MODE_SYNC;
 245                 break;
 246         case REGULATOR_MODE_NORMAL:
 247                 val = PV88080_BUCK_MODE_AUTO;
 248                 break;
 249         case REGULATOR_MODE_STANDBY:
 250                 val = PV88080_BUCK_MODE_SLEEP;
 251                 break;
 252         default:
 253                 return -EINVAL;
 254         }
 255
 256         return regmap_update_bits(rdev->regmap, info->mode_reg,
 257                                         PV88080_BUCK1_MODE_MASK, val);
 258 }
 259
 260 static const struct regulator_ops pv88080_buck_ops = {
 261         .get_mode = pv88080_buck_get_mode,
 262         .set_mode = pv88080_buck_set_mode,
 263         .enable = regulator_enable_regmap,
 264         .disable = regulator_disable_regmap,
 265         .is_enabled = regulator_is_enabled_regmap,
 266         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 267         .get_voltage_sel = regulator_get_voltage_sel_regmap,
 268         .list_voltage = regulator_list_voltage_linear,
 269         .set_current_limit = regulator_set_current_limit_regmap,
 270         .get_current_limit = regulator_get_current_limit_regmap,
 271 };
 272
 273 static const struct regulator_ops pv88080_hvbuck_ops = {
 274         .enable = regulator_enable_regmap,
 275         .disable = regulator_disable_regmap,
 276         .is_enabled = regulator_is_enabled_regmap,
 277         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 278         .get_voltage_sel = regulator_get_voltage_sel_regmap,
 279         .list_voltage = regulator_list_voltage_linear,
 280 };
 281
 282 #define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \
 283 {\
 284         .desc   =       {\
 285                 .id = chip##_ID_##regl_name,\
 286                 .name = __stringify(chip##_##regl_name),\
 287                 .of_match = of_match_ptr(#regl_name),\
 288                 .regulators_node = of_match_ptr("regulators"),\
 289                 .type = REGULATOR_VOLTAGE,\
 290                 .owner = THIS_MODULE,\
 291                 .ops = &pv88080_buck_ops,\
 292                 .min_uV = min, \
 293                 .uV_step = step, \
 294                 .n_voltages = ((max) - (min))/(step) + 1, \
 295                 .curr_table = limits_array, \
 296                 .n_current_limits = ARRAY_SIZE(limits_array), \
 297         },\
 298 }
 299
 300 #define PV88080_HVBUCK(chip, regl_name, min, step, max) \
 301 {\
 302         .desc   =       {\
 303                 .id = chip##_ID_##regl_name,\
 304                 .name = __stringify(chip##_##regl_name),\
 305                 .of_match = of_match_ptr(#regl_name),\
 306                 .regulators_node = of_match_ptr("regulators"),\
 307                 .type = REGULATOR_VOLTAGE,\
 308                 .owner = THIS_MODULE,\
 309                 .ops = &pv88080_hvbuck_ops,\
 310                 .min_uV = min, \
 311                 .uV_step = step, \
 312                 .n_voltages = ((max) - (min))/(step) + 1, \
 313         },\
 314 }
 315
 316 static struct pv88080_regulator pv88080_regulator_info[] = {
 317         PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750,
 318                 pv88080_buck1_limits),
 319         PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750,
 320                 pv88080_buck23_limits),
 321         PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750,
 322                 pv88080_buck23_limits),
 323         PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000),
 324 };
 325
 326 static irqreturn_t pv88080_irq_handler(int irq, void *data)
 327 {
 328         struct pv88080 *chip = data;
 329         int i, reg_val, err, ret = IRQ_NONE;
 330
 331         err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, &reg_val);
 332         if (err < 0)
 333                 goto error_i2c;
 334
 335         if (reg_val & PV88080_E_VDD_FLT) {
 336                 for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
 337                         if (chip->rdev[i] != NULL) {
 338                                 regulator_lock(chip->rdev[i]);
 339                                 regulator_notifier_call_chain(chip->rdev[i],
 340                                         REGULATOR_EVENT_UNDER_VOLTAGE,
 341                                         NULL);
 342                                 regulator_unlock(chip->rdev[i]);
 343                         }
 344                 }
 345
 346                 err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
 347                         PV88080_E_VDD_FLT);
 348                 if (err < 0)
 349                         goto error_i2c;
 350
 351                 ret = IRQ_HANDLED;
 352         }
 353
 354         if (reg_val & PV88080_E_OVER_TEMP) {
 355                 for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
 356                         if (chip->rdev[i] != NULL) {
 357                                 regulator_lock(chip->rdev[i]);
 358                                 regulator_notifier_call_chain(chip->rdev[i],
 359                                         REGULATOR_EVENT_OVER_TEMP,
 360                                         NULL);
 361                                 regulator_unlock(chip->rdev[i]);
 362                         }
 363                 }
 364
 365                 err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
 366                         PV88080_E_OVER_TEMP);
 367                 if (err < 0)
 368                         goto error_i2c;
 369
 370                 ret = IRQ_HANDLED;
 371         }
 372
 373         return ret;
 374
 375 error_i2c:
 376         dev_err(chip->dev, "I2C error : %d\n", err);
 377         return IRQ_NONE;
 378 }
 379
 380 /*
 381  * I2C driver interface functions
 382  */
 383 static int pv88080_i2c_probe(struct i2c_client *i2c,
 384                 const struct i2c_device_id *id)
 385 {
 386         struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
 387         struct pv88080 *chip;
 388         const struct pv88080_compatible_regmap *regmap_config;
 389         const struct of_device_id *match;
 390         struct regulator_config config = { };
 391         int i, error, ret;
 392         unsigned int conf2, conf5;
 393
 394         chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL);
 395         if (!chip)
 396                 return -ENOMEM;
 397
 398         chip->dev = &i2c->dev;
 399         chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config);
 400         if (IS_ERR(chip->regmap)) {
 401                 error = PTR_ERR(chip->regmap);
 402                 dev_err(chip->dev, "Failed to allocate register map: %d\n",
 403                         error);
 404                 return error;
 405         }
 406
 407         if (i2c->dev.of_node) {
 408                 match = of_match_node(pv88080_dt_ids, i2c->dev.of_node);
 409                 if (!match) {
 410                         dev_err(chip->dev, "Failed to get of_match_node\n");
 411                         return -EINVAL;
 412                 }
 413                 chip->type = (unsigned long)match->data;
 414         } else {
 415                 chip->type = id->driver_data;
 416         }
 417
 418         i2c_set_clientdata(i2c, chip);
 419
 420         if (i2c->irq != 0) {
 421                 ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF);
 422                 if (ret < 0) {
 423                         dev_err(chip->dev,
 424                                 "Failed to mask A reg: %d\n", ret);
 425                         return ret;
 426                 }
 427                 ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF);
 428                 if (ret < 0) {
 429                         dev_err(chip->dev,
 430                                 "Failed to mask B reg: %d\n", ret);
 431                         return ret;
 432                 }
 433                 ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF);
 434                 if (ret < 0) {
 435                         dev_err(chip->dev,
 436                                 "Failed to mask C reg: %d\n", ret);
 437                         return ret;
 438                 }
 439
 440                 ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
 441                                         pv88080_irq_handler,
 442                                         IRQF_TRIGGER_LOW|IRQF_ONESHOT,
 443                                         "pv88080", chip);
 444                 if (ret != 0) {
 445                         dev_err(chip->dev, "Failed to request IRQ: %d\n",
 446                                 i2c->irq);
 447                         return ret;
 448                 }
 449
 450                 ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A,
 451                         PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0);
 452                 if (ret < 0) {
 453                         dev_err(chip->dev,
 454                                 "Failed to update mask reg: %d\n", ret);
 455                         return ret;
 456                 }
 457         } else {
 458                 dev_warn(chip->dev, "No IRQ configured\n");
 459         }
 460
 461         switch (chip->type) {
 462         case TYPE_PV88080_AA:
 463                 chip->regmap_config = &pv88080_aa_regs;
 464                 break;
 465         case TYPE_PV88080_BA:
 466                 chip->regmap_config = &pv88080_ba_regs;
 467                 break;
 468         }
 469
 470         regmap_config = chip->regmap_config;
 471         config.dev = chip->dev;
 472         config.regmap = chip->regmap;
 473
 474         /* Registeration for BUCK1, 2, 3 */
 475         for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) {
 476                 if (init_data)
 477                         config.init_data = &init_data[i];
 478
 479                 pv88080_regulator_info[i].desc.csel_reg
 480                         = regmap_config->buck_regmap[i].buck_limit_reg;
 481                 pv88080_regulator_info[i].desc.csel_mask
 482                         = regmap_config->buck_regmap[i].buck_limit_mask;
 483                 pv88080_regulator_info[i].mode_reg
 484                         = regmap_config->buck_regmap[i].buck_mode_reg;
 485                 pv88080_regulator_info[i].conf2
 486                         = regmap_config->buck_regmap[i].buck_vdac_range_reg;
 487                 pv88080_regulator_info[i].conf5
 488                         = regmap_config->buck_regmap[i].buck_vrange_gain_reg;
 489                 pv88080_regulator_info[i].desc.enable_reg
 490                         = regmap_config->buck_regmap[i].buck_enable_reg;
 491                 pv88080_regulator_info[i].desc.enable_mask
 492                         = regmap_config->buck_regmap[i].buck_enable_mask;
 493                 pv88080_regulator_info[i].desc.vsel_reg
 494                         = regmap_config->buck_regmap[i].buck_vsel_reg;
 495                 pv88080_regulator_info[i].desc.vsel_mask
 496                         = regmap_config->buck_regmap[i].buck_vsel_mask;
 497
 498                 ret = regmap_read(chip->regmap,
 499                                 pv88080_regulator_info[i].conf2, &conf2);
 500                 if (ret < 0)
 501                         return ret;
 502                 conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) &
 503                         PV88080_BUCK_VDAC_RANGE_MASK);
 504
 505                 ret = regmap_read(chip->regmap,
 506                                 pv88080_regulator_info[i].conf5, &conf5);
 507                 if (ret < 0)
 508                         return ret;
 509                 conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) &
 510                         PV88080_BUCK_VRANGE_GAIN_MASK);
 511
 512                 pv88080_regulator_info[i].desc.min_uV =
 513                         pv88080_buck_vol[conf2].min_uV * (conf5+1);
 514                 pv88080_regulator_info[i].desc.uV_step =
 515                         pv88080_buck_vol[conf2].uV_step * (conf5+1);
 516                 pv88080_regulator_info[i].desc.n_voltages =
 517                         ((pv88080_buck_vol[conf2].max_uV * (conf5+1))
 518                         - (pv88080_regulator_info[i].desc.min_uV))
 519                         /(pv88080_regulator_info[i].desc.uV_step) + 1;
 520
 521                 config.driver_data = (void *)&pv88080_regulator_info[i];
 522                 chip->rdev[i] = devm_regulator_register(chip->dev,
 523                         &pv88080_regulator_info[i].desc, &config);
 524                 if (IS_ERR(chip->rdev[i])) {
 525                         dev_err(chip->dev,
 526                                 "Failed to register PV88080 regulator\n");
 527                         return PTR_ERR(chip->rdev[i]);
 528                 }
 529         }
 530
 531         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg
 532                 = regmap_config->hvbuck_enable_reg;
 533         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask
 534                 = regmap_config->hvbuck_enable_mask;
 535         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg
 536                 = regmap_config->hvbuck_vsel_reg;
 537         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask
 538                 = regmap_config->hvbuck_vsel_mask;
 539
 540         /* Registeration for HVBUCK */
 541         if (init_data)
 542                 config.init_data = &init_data[PV88080_ID_HVBUCK];
 543
 544         config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK];
 545         chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev,
 546                 &pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config);
 547         if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) {
 548                 dev_err(chip->dev, "Failed to register PV88080 regulator\n");
 549                 return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]);
 550         }
 551
 552         return 0;
 553 }
 554
 555 static const struct i2c_device_id pv88080_i2c_id[] = {
 556         { "pv88080",    TYPE_PV88080_AA },
 557         { "pv88080-aa", TYPE_PV88080_AA },
 558         { "pv88080-ba", TYPE_PV88080_BA },
 559         {},
 560 };
 561 MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);
 562
 563 static struct i2c_driver pv88080_regulator_driver = {
 564         .driver = {
 565                 .name = "pv88080",
 566                 .of_match_table = of_match_ptr(pv88080_dt_ids),
 567         },
 568         .probe = pv88080_i2c_probe,
 569         .id_table = pv88080_i2c_id,
 570 };
 571
 572 module_i2c_driver(pv88080_regulator_driver);
 573
 574 MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
 575 MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080");
 576 MODULE_LICENSE("GPL");