drivers/regulator/pv88080-regulator.c

   1 /*
   2  * pv88080-regulator.c - Regulator device driver for PV88080
   3  * Copyright (C) 2016  Powerventure Semiconductor Ltd.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <linux/err.h>
  17 #include <linux/i2c.h>
  18 #include <linux/module.h>
  19 #include <linux/of.h>
  20 #include <linux/init.h>
  21 #include <linux/slab.h>
  22 #include <linux/regulator/driver.h>
  23 #include <linux/regulator/machine.h>
  24 #include <linux/regmap.h>
  25 #include <linux/irq.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/regulator/of_regulator.h>
  28 #include "pv88080-regulator.h"
  29
  30 #define PV88080_MAX_REGULATORS  4
  31
  32 /* PV88080 REGULATOR IDs */
  33 enum {
  34         /* BUCKs */
  35         PV88080_ID_BUCK1,
  36         PV88080_ID_BUCK2,
  37         PV88080_ID_BUCK3,
  38         PV88080_ID_HVBUCK,
  39 };
  40
  41 enum pv88080_types {
  42         TYPE_PV88080_AA,
  43         TYPE_PV88080_BA,
  44 };
  45
  46 struct pv88080_regulator {
  47         struct regulator_desc desc;
  48         unsigned int mode_reg;
  49         unsigned int conf2;
  50         unsigned int conf5;
  51 };
  52
  53 struct pv88080 {
  54         struct device *dev;
  55         struct regmap *regmap;
  56         struct regulator_dev *rdev[PV88080_MAX_REGULATORS];
  57         unsigned long type;
  58         const struct pv88080_compatible_regmap *regmap_config;
  59 };
  60
  61 struct pv88080_buck_voltage {
  62         int min_uV;
  63         int max_uV;
  64         int uV_step;
  65 };
  66
  67 struct pv88080_buck_regmap {
  68         /* REGS */
  69         int buck_enable_reg;
  70         int buck_vsel_reg;
  71         int buck_mode_reg;
  72         int buck_limit_reg;
  73         int buck_vdac_range_reg;
  74         int buck_vrange_gain_reg;
  75         /* MASKS */
  76         int buck_enable_mask;
  77         int buck_vsel_mask;
  78         int buck_limit_mask;
  79 };
  80
  81 struct pv88080_compatible_regmap {
  82         /* BUCK1, 2, 3 */
  83         struct pv88080_buck_regmap buck_regmap[PV88080_MAX_REGULATORS-1];
  84         /* HVBUCK */
  85         int hvbuck_enable_reg;
  86         int hvbuck_vsel_reg;
  87         int hvbuck_enable_mask;
  88         int hvbuck_vsel_mask;
  89 };
  90
  91 static const struct regmap_config pv88080_regmap_config = {
  92         .reg_bits = 8,
  93         .val_bits = 8,
  94 };
  95
  96 /* Current limits array (in uA) for BUCK1, BUCK2, BUCK3.
  97  * Entry indexes corresponds to register values.
  98  */
  99
 100 static const unsigned int pv88080_buck1_limits[] = {
 101         3230000, 5130000, 6960000, 8790000
 102 };
 103
 104 static const unsigned int pv88080_buck23_limits[] = {
 105         1496000, 2393000, 3291000, 4189000
 106 };
 107
 108 static const struct pv88080_buck_voltage pv88080_buck_vol[2] = {
 109         {
 110                 .min_uV = 600000,
 111                 .max_uV = 1393750,
 112                 .uV_step = 6250,
 113         },
 114         {
 115                 .min_uV = 1400000,
 116                 .max_uV = 2193750,
 117                 .uV_step = 6250,
 118         },
 119 };
 120
 121 static const struct pv88080_compatible_regmap pv88080_aa_regs = {
 122         /* BUCK1 */
 123         .buck_regmap[0] = {
 124                 .buck_enable_reg      = PV88080AA_REG_BUCK1_CONF0,
 125                 .buck_vsel_reg        = PV88080AA_REG_BUCK1_CONF0,
 126                 .buck_mode_reg        = PV88080AA_REG_BUCK1_CONF1,
 127                 .buck_limit_reg       = PV88080AA_REG_BUCK1_CONF1,
 128                 .buck_vdac_range_reg  = PV88080AA_REG_BUCK1_CONF2,
 129                 .buck_vrange_gain_reg = PV88080AA_REG_BUCK1_CONF5,
 130                 .buck_enable_mask     = PV88080_BUCK1_EN,
 131                 .buck_vsel_mask       = PV88080_VBUCK1_MASK,
 132                 .buck_limit_mask      = PV88080_BUCK1_ILIM_MASK,
 133         },
 134         /* BUCK2 */
 135         .buck_regmap[1] = {
 136                 .buck_enable_reg      = PV88080AA_REG_BUCK2_CONF0,
 137                 .buck_vsel_reg        = PV88080AA_REG_BUCK2_CONF0,
 138                 .buck_mode_reg        = PV88080AA_REG_BUCK2_CONF1,
 139                 .buck_limit_reg       = PV88080AA_REG_BUCK2_CONF1,
 140                 .buck_vdac_range_reg  = PV88080AA_REG_BUCK2_CONF2,
 141                 .buck_vrange_gain_reg = PV88080AA_REG_BUCK2_CONF5,
 142                 .buck_enable_mask         = PV88080_BUCK2_EN,
 143                 .buck_vsel_mask       = PV88080_VBUCK2_MASK,
 144                 .buck_limit_mask      = PV88080_BUCK2_ILIM_MASK,
 145         },
 146         /* BUCK3 */
 147         .buck_regmap[2] = {
 148                 .buck_enable_reg          = PV88080AA_REG_BUCK3_CONF0,
 149                 .buck_vsel_reg        = PV88080AA_REG_BUCK3_CONF0,
 150                 .buck_mode_reg        = PV88080AA_REG_BUCK3_CONF1,
 151                 .buck_limit_reg       = PV88080AA_REG_BUCK3_CONF1,
 152                 .buck_vdac_range_reg  = PV88080AA_REG_BUCK3_CONF2,
 153                 .buck_vrange_gain_reg = PV88080AA_REG_BUCK3_CONF5,
 154                 .buck_enable_mask         = PV88080_BUCK3_EN,
 155                 .buck_vsel_mask       = PV88080_VBUCK3_MASK,
 156                 .buck_limit_mask      = PV88080_BUCK3_ILIM_MASK,
 157         },
 158         /* HVBUCK */
 159         .hvbuck_enable_reg            = PV88080AA_REG_HVBUCK_CONF2,
 160         .hvbuck_vsel_reg          = PV88080AA_REG_HVBUCK_CONF1,
 161         .hvbuck_enable_mask       = PV88080_HVBUCK_EN,
 162         .hvbuck_vsel_mask         = PV88080_VHVBUCK_MASK,
 163 };
 164
 165 static const struct pv88080_compatible_regmap pv88080_ba_regs = {
 166         /* BUCK1 */
 167         .buck_regmap[0] = {
 168                 .buck_enable_reg          = PV88080BA_REG_BUCK1_CONF0,
 169                 .buck_vsel_reg        = PV88080BA_REG_BUCK1_CONF0,
 170                 .buck_mode_reg        = PV88080BA_REG_BUCK1_CONF1,
 171                 .buck_limit_reg       = PV88080BA_REG_BUCK1_CONF1,
 172                 .buck_vdac_range_reg  = PV88080BA_REG_BUCK1_CONF2,
 173                 .buck_vrange_gain_reg = PV88080BA_REG_BUCK1_CONF5,
 174                 .buck_enable_mask     = PV88080_BUCK1_EN,
 175                 .buck_vsel_mask       = PV88080_VBUCK1_MASK,
 176                 .buck_limit_mask          = PV88080_BUCK1_ILIM_MASK,
 177         },
 178         /* BUCK2 */
 179         .buck_regmap[1] = {
 180                 .buck_enable_reg          = PV88080BA_REG_BUCK2_CONF0,
 181                 .buck_vsel_reg        = PV88080BA_REG_BUCK2_CONF0,
 182                 .buck_mode_reg        = PV88080BA_REG_BUCK2_CONF1,
 183                 .buck_limit_reg       = PV88080BA_REG_BUCK2_CONF1,
 184                 .buck_vdac_range_reg  = PV88080BA_REG_BUCK2_CONF2,
 185                 .buck_vrange_gain_reg = PV88080BA_REG_BUCK2_CONF5,
 186                 .buck_enable_mask         = PV88080_BUCK2_EN,
 187                 .buck_vsel_mask       = PV88080_VBUCK2_MASK,
 188                 .buck_limit_mask          = PV88080_BUCK2_ILIM_MASK,
 189         },
 190         /* BUCK3 */
 191         .buck_regmap[2] = {
 192                 .buck_enable_reg          = PV88080BA_REG_BUCK3_CONF0,
 193                 .buck_vsel_reg        = PV88080BA_REG_BUCK3_CONF0,
 194                 .buck_mode_reg        = PV88080BA_REG_BUCK3_CONF1,
 195                 .buck_limit_reg       = PV88080BA_REG_BUCK3_CONF1,
 196                 .buck_vdac_range_reg  = PV88080BA_REG_BUCK3_CONF2,
 197                 .buck_vrange_gain_reg = PV88080BA_REG_BUCK3_CONF5,
 198                 .buck_enable_mask         = PV88080_BUCK3_EN,
 199                 .buck_vsel_mask       = PV88080_VBUCK3_MASK,
 200                 .buck_limit_mask          = PV88080_BUCK3_ILIM_MASK,
 201         },
 202         /* HVBUCK */
 203         .hvbuck_enable_reg            = PV88080BA_REG_HVBUCK_CONF2,
 204         .hvbuck_vsel_reg          = PV88080BA_REG_HVBUCK_CONF1,
 205         .hvbuck_enable_mask       = PV88080_HVBUCK_EN,
 206         .hvbuck_vsel_mask                 = PV88080_VHVBUCK_MASK,
 207 };
 208
 209 #ifdef CONFIG_OF
 210 static const struct of_device_id pv88080_dt_ids[] = {
 211         { .compatible = "pvs,pv88080",    .data = (void *)TYPE_PV88080_AA },
 212         { .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA },
 213         { .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA },
 214         {},
 215 };
 216 MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
 217 #endif
 218
 219 static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
 220 {
 221         struct pv88080_regulator *info = rdev_get_drvdata(rdev);
 222         unsigned int data;
 223         int ret, mode = 0;
 224
 225         ret = regmap_read(rdev->regmap, info->mode_reg, &data);
 226         if (ret < 0)
 227                 return ret;
 228
 229         switch (data & PV88080_BUCK1_MODE_MASK) {
 230         case PV88080_BUCK_MODE_SYNC:
 231                 mode = REGULATOR_MODE_FAST;
 232                 break;
 233         case PV88080_BUCK_MODE_AUTO:
 234                 mode = REGULATOR_MODE_NORMAL;
 235                 break;
 236         case PV88080_BUCK_MODE_SLEEP:
 237                 mode = REGULATOR_MODE_STANDBY;
 238                 break;
 239         default:
 240                 return -EINVAL;
 241         }
 242
 243         return mode;
 244 }
 245
 246 static int pv88080_buck_set_mode(struct regulator_dev *rdev,
 247                                         unsigned int mode)
 248 {
 249         struct pv88080_regulator *info = rdev_get_drvdata(rdev);
 250         int val = 0;
 251
 252         switch (mode) {
 253         case REGULATOR_MODE_FAST:
 254                 val = PV88080_BUCK_MODE_SYNC;
 255                 break;
 256         case REGULATOR_MODE_NORMAL:
 257                 val = PV88080_BUCK_MODE_AUTO;
 258                 break;
 259         case REGULATOR_MODE_STANDBY:
 260                 val = PV88080_BUCK_MODE_SLEEP;
 261                 break;
 262         default:
 263                 return -EINVAL;
 264         }
 265
 266         return regmap_update_bits(rdev->regmap, info->mode_reg,
 267                                         PV88080_BUCK1_MODE_MASK, val);
 268 }
 269
 270 static const struct regulator_ops pv88080_buck_ops = {
 271         .get_mode = pv88080_buck_get_mode,
 272         .set_mode = pv88080_buck_set_mode,
 273         .enable = regulator_enable_regmap,
 274         .disable = regulator_disable_regmap,
 275         .is_enabled = regulator_is_enabled_regmap,
 276         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 277         .get_voltage_sel = regulator_get_voltage_sel_regmap,
 278         .list_voltage = regulator_list_voltage_linear,
 279         .set_current_limit = regulator_set_current_limit_regmap,
 280         .get_current_limit = regulator_get_current_limit_regmap,
 281 };
 282
 283 static const struct regulator_ops pv88080_hvbuck_ops = {
 284         .enable = regulator_enable_regmap,
 285         .disable = regulator_disable_regmap,
 286         .is_enabled = regulator_is_enabled_regmap,
 287         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 288         .get_voltage_sel = regulator_get_voltage_sel_regmap,
 289         .list_voltage = regulator_list_voltage_linear,
 290 };
 291
 292 #define PV88080_BUCK(chip, regl_name, min, step, max, limits_array) \
 293 {\
 294         .desc   =       {\
 295                 .id = chip##_ID_##regl_name,\
 296                 .name = __stringify(chip##_##regl_name),\
 297                 .of_match = of_match_ptr(#regl_name),\
 298                 .regulators_node = of_match_ptr("regulators"),\
 299                 .type = REGULATOR_VOLTAGE,\
 300                 .owner = THIS_MODULE,\
 301                 .ops = &pv88080_buck_ops,\
 302                 .min_uV = min, \
 303                 .uV_step = step, \
 304                 .n_voltages = ((max) - (min))/(step) + 1, \
 305                 .curr_table = limits_array, \
 306                 .n_current_limits = ARRAY_SIZE(limits_array), \
 307         },\
 308 }
 309
 310 #define PV88080_HVBUCK(chip, regl_name, min, step, max) \
 311 {\
 312         .desc   =       {\
 313                 .id = chip##_ID_##regl_name,\
 314                 .name = __stringify(chip##_##regl_name),\
 315                 .of_match = of_match_ptr(#regl_name),\
 316                 .regulators_node = of_match_ptr("regulators"),\
 317                 .type = REGULATOR_VOLTAGE,\
 318                 .owner = THIS_MODULE,\
 319                 .ops = &pv88080_hvbuck_ops,\
 320                 .min_uV = min, \
 321                 .uV_step = step, \
 322                 .n_voltages = ((max) - (min))/(step) + 1, \
 323         },\
 324 }
 325
 326 static struct pv88080_regulator pv88080_regulator_info[] = {
 327         PV88080_BUCK(PV88080, BUCK1, 600000, 6250, 1393750,
 328                 pv88080_buck1_limits),
 329         PV88080_BUCK(PV88080, BUCK2, 600000, 6250, 1393750,
 330                 pv88080_buck23_limits),
 331         PV88080_BUCK(PV88080, BUCK3, 600000, 6250, 1393750,
 332                 pv88080_buck23_limits),
 333         PV88080_HVBUCK(PV88080, HVBUCK, 0, 5000, 1275000),
 334 };
 335
 336 static irqreturn_t pv88080_irq_handler(int irq, void *data)
 337 {
 338         struct pv88080 *chip = data;
 339         int i, reg_val, err, ret = IRQ_NONE;
 340
 341         err = regmap_read(chip->regmap, PV88080_REG_EVENT_A, &reg_val);
 342         if (err < 0)
 343                 goto error_i2c;
 344
 345         if (reg_val & PV88080_E_VDD_FLT) {
 346                 for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
 347                         if (chip->rdev[i] != NULL) {
 348                                 regulator_notifier_call_chain(chip->rdev[i],
 349                                         REGULATOR_EVENT_UNDER_VOLTAGE,
 350                                         NULL);
 351                         }
 352                 }
 353
 354                 err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
 355                         PV88080_E_VDD_FLT);
 356                 if (err < 0)
 357                         goto error_i2c;
 358
 359                 ret = IRQ_HANDLED;
 360         }
 361
 362         if (reg_val & PV88080_E_OVER_TEMP) {
 363                 for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
 364                         if (chip->rdev[i] != NULL) {
 365                                 regulator_notifier_call_chain(chip->rdev[i],
 366                                         REGULATOR_EVENT_OVER_TEMP,
 367                                         NULL);
 368                         }
 369                 }
 370
 371                 err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
 372                         PV88080_E_OVER_TEMP);
 373                 if (err < 0)
 374                         goto error_i2c;
 375
 376                 ret = IRQ_HANDLED;
 377         }
 378
 379         return ret;
 380
 381 error_i2c:
 382         dev_err(chip->dev, "I2C error : %d\n", err);
 383         return IRQ_NONE;
 384 }
 385
 386 /*
 387  * I2C driver interface functions
 388  */
 389 static int pv88080_i2c_probe(struct i2c_client *i2c,
 390                 const struct i2c_device_id *id)
 391 {
 392         struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
 393         struct pv88080 *chip;
 394         const struct pv88080_compatible_regmap *regmap_config;
 395         const struct of_device_id *match;
 396         struct regulator_config config = { };
 397         int i, error, ret;
 398         unsigned int conf2, conf5;
 399
 400         chip = devm_kzalloc(&i2c->dev, sizeof(struct pv88080), GFP_KERNEL);
 401         if (!chip)
 402                 return -ENOMEM;
 403
 404         chip->dev = &i2c->dev;
 405         chip->regmap = devm_regmap_init_i2c(i2c, &pv88080_regmap_config);
 406         if (IS_ERR(chip->regmap)) {
 407                 error = PTR_ERR(chip->regmap);
 408                 dev_err(chip->dev, "Failed to allocate register map: %d\n",
 409                         error);
 410                 return error;
 411         }
 412
 413         if (i2c->dev.of_node) {
 414                 match = of_match_node(pv88080_dt_ids, i2c->dev.of_node);
 415                 if (!match) {
 416                         dev_err(chip->dev, "Failed to get of_match_node\n");
 417                         return -EINVAL;
 418                 }
 419                 chip->type = (unsigned long)match->data;
 420         } else {
 421                 chip->type = id->driver_data;
 422         }
 423
 424         i2c_set_clientdata(i2c, chip);
 425
 426         if (i2c->irq != 0) {
 427                 ret = regmap_write(chip->regmap, PV88080_REG_MASK_A, 0xFF);
 428                 if (ret < 0) {
 429                         dev_err(chip->dev,
 430                                 "Failed to mask A reg: %d\n", ret);
 431                         return ret;
 432                 }
 433                 ret = regmap_write(chip->regmap, PV88080_REG_MASK_B, 0xFF);
 434                 if (ret < 0) {
 435                         dev_err(chip->dev,
 436                                 "Failed to mask B reg: %d\n", ret);
 437                         return ret;
 438                 }
 439                 ret = regmap_write(chip->regmap, PV88080_REG_MASK_C, 0xFF);
 440                 if (ret < 0) {
 441                         dev_err(chip->dev,
 442                                 "Failed to mask C reg: %d\n", ret);
 443                         return ret;
 444                 }
 445
 446                 ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
 447                                         pv88080_irq_handler,
 448                                         IRQF_TRIGGER_LOW|IRQF_ONESHOT,
 449                                         "pv88080", chip);
 450                 if (ret != 0) {
 451                         dev_err(chip->dev, "Failed to request IRQ: %d\n",
 452                                 i2c->irq);
 453                         return ret;
 454                 }
 455
 456                 ret = regmap_update_bits(chip->regmap, PV88080_REG_MASK_A,
 457                         PV88080_M_VDD_FLT | PV88080_M_OVER_TEMP, 0);
 458                 if (ret < 0) {
 459                         dev_err(chip->dev,
 460                                 "Failed to update mask reg: %d\n", ret);
 461                         return ret;
 462                 }
 463         } else {
 464                 dev_warn(chip->dev, "No IRQ configured\n");
 465         }
 466
 467         switch (chip->type) {
 468         case TYPE_PV88080_AA:
 469                 chip->regmap_config = &pv88080_aa_regs;
 470                 break;
 471         case TYPE_PV88080_BA:
 472                 chip->regmap_config = &pv88080_ba_regs;
 473                 break;
 474         }
 475
 476         regmap_config = chip->regmap_config;
 477         config.dev = chip->dev;
 478         config.regmap = chip->regmap;
 479
 480         /* Registeration for BUCK1, 2, 3 */
 481         for (i = 0; i < PV88080_MAX_REGULATORS-1; i++) {
 482                 if (init_data)
 483                         config.init_data = &init_data[i];
 484
 485                 pv88080_regulator_info[i].desc.csel_reg
 486                         = regmap_config->buck_regmap[i].buck_limit_reg;
 487                 pv88080_regulator_info[i].desc.csel_mask
 488                         = regmap_config->buck_regmap[i].buck_limit_mask;
 489                 pv88080_regulator_info[i].mode_reg
 490                         = regmap_config->buck_regmap[i].buck_mode_reg;
 491                 pv88080_regulator_info[i].conf2
 492                         = regmap_config->buck_regmap[i].buck_vdac_range_reg;
 493                 pv88080_regulator_info[i].conf5
 494                         = regmap_config->buck_regmap[i].buck_vrange_gain_reg;
 495                 pv88080_regulator_info[i].desc.enable_reg
 496                         = regmap_config->buck_regmap[i].buck_enable_reg;
 497                 pv88080_regulator_info[i].desc.enable_mask
 498                         = regmap_config->buck_regmap[i].buck_enable_mask;
 499                 pv88080_regulator_info[i].desc.vsel_reg
 500                         = regmap_config->buck_regmap[i].buck_vsel_reg;
 501                 pv88080_regulator_info[i].desc.vsel_mask
 502                         = regmap_config->buck_regmap[i].buck_vsel_mask;
 503
 504                 ret = regmap_read(chip->regmap,
 505                                 pv88080_regulator_info[i].conf2, &conf2);
 506                 if (ret < 0)
 507                         return ret;
 508                 conf2 = ((conf2 >> PV88080_BUCK_VDAC_RANGE_SHIFT) &
 509                         PV88080_BUCK_VDAC_RANGE_MASK);
 510
 511                 ret = regmap_read(chip->regmap,
 512                                 pv88080_regulator_info[i].conf5, &conf5);
 513                 if (ret < 0)
 514                         return ret;
 515                 conf5 = ((conf5 >> PV88080_BUCK_VRANGE_GAIN_SHIFT) &
 516                         PV88080_BUCK_VRANGE_GAIN_MASK);
 517
 518                 pv88080_regulator_info[i].desc.min_uV =
 519                         pv88080_buck_vol[conf2].min_uV * (conf5+1);
 520                 pv88080_regulator_info[i].desc.uV_step =
 521                         pv88080_buck_vol[conf2].uV_step * (conf5+1);
 522                 pv88080_regulator_info[i].desc.n_voltages =
 523                         ((pv88080_buck_vol[conf2].max_uV * (conf5+1))
 524                         - (pv88080_regulator_info[i].desc.min_uV))
 525                         /(pv88080_regulator_info[i].desc.uV_step) + 1;
 526
 527                 config.driver_data = (void *)&pv88080_regulator_info[i];
 528                 chip->rdev[i] = devm_regulator_register(chip->dev,
 529                         &pv88080_regulator_info[i].desc, &config);
 530                 if (IS_ERR(chip->rdev[i])) {
 531                         dev_err(chip->dev,
 532                                 "Failed to register PV88080 regulator\n");
 533                         return PTR_ERR(chip->rdev[i]);
 534                 }
 535         }
 536
 537         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_reg
 538                 = regmap_config->hvbuck_enable_reg;
 539         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.enable_mask
 540                 = regmap_config->hvbuck_enable_mask;
 541         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_reg
 542                 = regmap_config->hvbuck_vsel_reg;
 543         pv88080_regulator_info[PV88080_ID_HVBUCK].desc.vsel_mask
 544                 = regmap_config->hvbuck_vsel_mask;
 545
 546         /* Registeration for HVBUCK */
 547         if (init_data)
 548                 config.init_data = &init_data[PV88080_ID_HVBUCK];
 549
 550         config.driver_data = (void *)&pv88080_regulator_info[PV88080_ID_HVBUCK];
 551         chip->rdev[PV88080_ID_HVBUCK] = devm_regulator_register(chip->dev,
 552                 &pv88080_regulator_info[PV88080_ID_HVBUCK].desc, &config);
 553         if (IS_ERR(chip->rdev[PV88080_ID_HVBUCK])) {
 554                 dev_err(chip->dev, "Failed to register PV88080 regulator\n");
 555                 return PTR_ERR(chip->rdev[PV88080_ID_HVBUCK]);
 556         }
 557
 558         return 0;
 559 }
 560
 561 static const struct i2c_device_id pv88080_i2c_id[] = {
 562         { "pv88080",    TYPE_PV88080_AA },
 563         { "pv88080-aa", TYPE_PV88080_AA },
 564         { "pv88080-ba", TYPE_PV88080_BA },
 565         {},
 566 };
 567 MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);
 568
 569 static struct i2c_driver pv88080_regulator_driver = {
 570         .driver = {
 571                 .name = "pv88080",
 572                 .of_match_table = of_match_ptr(pv88080_dt_ids),
 573         },
 574         .probe = pv88080_i2c_probe,
 575         .id_table = pv88080_i2c_id,
 576 };
 577
 578 module_i2c_driver(pv88080_regulator_driver);
 579
 580 MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
 581 MODULE_DESCRIPTION("Regulator device driver for Powerventure PV88080");
 582 MODULE_LICENSE("GPL");