linux/drivers/regulator/act8865-regulator.c
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   1/*
   2 * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
   3 *
   4 * http://www.active-semi.com/products/power-management-units/act88xx/
   5 *
   6 * Copyright (C) 2013 Atmel Corporation
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 */
  18
  19#include <linux/module.h>
  20#include <linux/init.h>
  21#include <linux/i2c.h>
  22#include <linux/err.h>
  23#include <linux/platform_device.h>
  24#include <linux/regulator/driver.h>
  25#include <linux/regulator/act8865.h>
  26#include <linux/of.h>
  27#include <linux/of_device.h>
  28#include <linux/regulator/of_regulator.h>
  29#include <linux/regmap.h>
  30
  31/*
  32 * ACT8600 Global Register Map.
  33 */
  34#define ACT8600_SYS_MODE        0x00
  35#define ACT8600_SYS_CTRL        0x01
  36#define ACT8600_DCDC1_VSET      0x10
  37#define ACT8600_DCDC1_CTRL      0x12
  38#define ACT8600_DCDC2_VSET      0x20
  39#define ACT8600_DCDC2_CTRL      0x22
  40#define ACT8600_DCDC3_VSET      0x30
  41#define ACT8600_DCDC3_CTRL      0x32
  42#define ACT8600_SUDCDC4_VSET    0x40
  43#define ACT8600_SUDCDC4_CTRL    0x41
  44#define ACT8600_LDO5_VSET       0x50
  45#define ACT8600_LDO5_CTRL       0x51
  46#define ACT8600_LDO6_VSET       0x60
  47#define ACT8600_LDO6_CTRL       0x61
  48#define ACT8600_LDO7_VSET       0x70
  49#define ACT8600_LDO7_CTRL       0x71
  50#define ACT8600_LDO8_VSET       0x80
  51#define ACT8600_LDO8_CTRL       0x81
  52#define ACT8600_LDO910_CTRL     0x91
  53#define ACT8600_APCH0           0xA1
  54#define ACT8600_APCH1           0xA8
  55#define ACT8600_APCH2           0xA9
  56#define ACT8600_APCH_STAT       0xAA
  57#define ACT8600_OTG0            0xB0
  58#define ACT8600_OTG1            0xB2
  59
  60/*
  61 * ACT8846 Global Register Map.
  62 */
  63#define ACT8846_SYS0            0x00
  64#define ACT8846_SYS1            0x01
  65#define ACT8846_REG1_VSET       0x10
  66#define ACT8846_REG1_CTRL       0x12
  67#define ACT8846_REG2_VSET0      0x20
  68#define ACT8846_REG2_VSET1      0x21
  69#define ACT8846_REG2_CTRL       0x22
  70#define ACT8846_REG3_VSET0      0x30
  71#define ACT8846_REG3_VSET1      0x31
  72#define ACT8846_REG3_CTRL       0x32
  73#define ACT8846_REG4_VSET0      0x40
  74#define ACT8846_REG4_VSET1      0x41
  75#define ACT8846_REG4_CTRL       0x42
  76#define ACT8846_REG5_VSET       0x50
  77#define ACT8846_REG5_CTRL       0x51
  78#define ACT8846_REG6_VSET       0x58
  79#define ACT8846_REG6_CTRL       0x59
  80#define ACT8846_REG7_VSET       0x60
  81#define ACT8846_REG7_CTRL       0x61
  82#define ACT8846_REG8_VSET       0x68
  83#define ACT8846_REG8_CTRL       0x69
  84#define ACT8846_REG9_VSET       0x70
  85#define ACT8846_REG9_CTRL       0x71
  86#define ACT8846_REG10_VSET      0x80
  87#define ACT8846_REG10_CTRL      0x81
  88#define ACT8846_REG11_VSET      0x90
  89#define ACT8846_REG11_CTRL      0x91
  90#define ACT8846_REG12_VSET      0xa0
  91#define ACT8846_REG12_CTRL      0xa1
  92#define ACT8846_REG13_CTRL      0xb1
  93#define ACT8846_GLB_OFF_CTRL    0xc3
  94#define ACT8846_OFF_SYSMASK     0x18
  95
  96/*
  97 * ACT8865 Global Register Map.
  98 */
  99#define ACT8865_SYS_MODE        0x00
 100#define ACT8865_SYS_CTRL        0x01
 101#define ACT8865_DCDC1_VSET1     0x20
 102#define ACT8865_DCDC1_VSET2     0x21
 103#define ACT8865_DCDC1_CTRL      0x22
 104#define ACT8865_DCDC2_VSET1     0x30
 105#define ACT8865_DCDC2_VSET2     0x31
 106#define ACT8865_DCDC2_CTRL      0x32
 107#define ACT8865_DCDC3_VSET1     0x40
 108#define ACT8865_DCDC3_VSET2     0x41
 109#define ACT8865_DCDC3_CTRL      0x42
 110#define ACT8865_LDO1_VSET       0x50
 111#define ACT8865_LDO1_CTRL       0x51
 112#define ACT8865_LDO2_VSET       0x54
 113#define ACT8865_LDO2_CTRL       0x55
 114#define ACT8865_LDO3_VSET       0x60
 115#define ACT8865_LDO3_CTRL       0x61
 116#define ACT8865_LDO4_VSET       0x64
 117#define ACT8865_LDO4_CTRL       0x65
 118#define ACT8865_MSTROFF         0x20
 119
 120/*
 121 * Field Definitions.
 122 */
 123#define ACT8865_ENA             0x80    /* ON - [7] */
 124#define ACT8865_VSEL_MASK       0x3F    /* VSET - [5:0] */
 125
 126
 127#define ACT8600_LDO10_ENA               0x40    /* ON - [6] */
 128#define ACT8600_SUDCDC_VSEL_MASK        0xFF    /* SUDCDC VSET - [7:0] */
 129
 130/*
 131 * ACT8865 voltage number
 132 */
 133#define ACT8865_VOLTAGE_NUM     64
 134#define ACT8600_SUDCDC_VOLTAGE_NUM      255
 135
 136struct act8865 {
 137        struct regmap *regmap;
 138        int off_reg;
 139        int off_mask;
 140};
 141
 142static const struct regmap_range act8600_reg_ranges[] = {
 143        regmap_reg_range(0x00, 0x01),
 144        regmap_reg_range(0x10, 0x10),
 145        regmap_reg_range(0x12, 0x12),
 146        regmap_reg_range(0x20, 0x20),
 147        regmap_reg_range(0x22, 0x22),
 148        regmap_reg_range(0x30, 0x30),
 149        regmap_reg_range(0x32, 0x32),
 150        regmap_reg_range(0x40, 0x41),
 151        regmap_reg_range(0x50, 0x51),
 152        regmap_reg_range(0x60, 0x61),
 153        regmap_reg_range(0x70, 0x71),
 154        regmap_reg_range(0x80, 0x81),
 155        regmap_reg_range(0x91, 0x91),
 156        regmap_reg_range(0xA1, 0xA1),
 157        regmap_reg_range(0xA8, 0xAA),
 158        regmap_reg_range(0xB0, 0xB0),
 159        regmap_reg_range(0xB2, 0xB2),
 160        regmap_reg_range(0xC1, 0xC1),
 161};
 162
 163static const struct regmap_range act8600_reg_ro_ranges[] = {
 164        regmap_reg_range(0xAA, 0xAA),
 165        regmap_reg_range(0xC1, 0xC1),
 166};
 167
 168static const struct regmap_range act8600_reg_volatile_ranges[] = {
 169        regmap_reg_range(0x00, 0x01),
 170        regmap_reg_range(0x12, 0x12),
 171        regmap_reg_range(0x22, 0x22),
 172        regmap_reg_range(0x32, 0x32),
 173        regmap_reg_range(0x41, 0x41),
 174        regmap_reg_range(0x51, 0x51),
 175        regmap_reg_range(0x61, 0x61),
 176        regmap_reg_range(0x71, 0x71),
 177        regmap_reg_range(0x81, 0x81),
 178        regmap_reg_range(0xA8, 0xA8),
 179        regmap_reg_range(0xAA, 0xAA),
 180        regmap_reg_range(0xB0, 0xB0),
 181        regmap_reg_range(0xC1, 0xC1),
 182};
 183
 184static const struct regmap_access_table act8600_write_ranges_table = {
 185        .yes_ranges     = act8600_reg_ranges,
 186        .n_yes_ranges   = ARRAY_SIZE(act8600_reg_ranges),
 187        .no_ranges      = act8600_reg_ro_ranges,
 188        .n_no_ranges    = ARRAY_SIZE(act8600_reg_ro_ranges),
 189};
 190
 191static const struct regmap_access_table act8600_read_ranges_table = {
 192        .yes_ranges     = act8600_reg_ranges,
 193        .n_yes_ranges   = ARRAY_SIZE(act8600_reg_ranges),
 194};
 195
 196static const struct regmap_access_table act8600_volatile_ranges_table = {
 197        .yes_ranges     = act8600_reg_volatile_ranges,
 198        .n_yes_ranges   = ARRAY_SIZE(act8600_reg_volatile_ranges),
 199};
 200
 201static const struct regmap_config act8600_regmap_config = {
 202        .reg_bits = 8,
 203        .val_bits = 8,
 204        .max_register = 0xFF,
 205        .wr_table = &act8600_write_ranges_table,
 206        .rd_table = &act8600_read_ranges_table,
 207        .volatile_table = &act8600_volatile_ranges_table,
 208};
 209
 210static const struct regmap_config act8865_regmap_config = {
 211        .reg_bits = 8,
 212        .val_bits = 8,
 213};
 214
 215static const struct regulator_linear_range act8865_voltage_ranges[] = {
 216        REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
 217        REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
 218        REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
 219};
 220
 221static const struct regulator_linear_range act8600_sudcdc_voltage_ranges[] = {
 222        REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
 223        REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
 224        REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
 225        REGULATOR_LINEAR_RANGE(19000000, 191, 255, 400000),
 226};
 227
 228static struct regulator_ops act8865_ops = {
 229        .list_voltage           = regulator_list_voltage_linear_range,
 230        .map_voltage            = regulator_map_voltage_linear_range,
 231        .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 232        .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 233        .enable                 = regulator_enable_regmap,
 234        .disable                = regulator_disable_regmap,
 235        .is_enabled             = regulator_is_enabled_regmap,
 236};
 237
 238static struct regulator_ops act8865_ldo_ops = {
 239        .enable                 = regulator_enable_regmap,
 240        .disable                = regulator_disable_regmap,
 241        .is_enabled             = regulator_is_enabled_regmap,
 242};
 243
 244#define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply)            \
 245        [_family##_ID_##_id] = {                                        \
 246                .name                   = _name,                        \
 247                .supply_name            = _supply,                      \
 248                .id                     = _family##_ID_##_id,           \
 249                .type                   = REGULATOR_VOLTAGE,            \
 250                .ops                    = &act8865_ops,                 \
 251                .n_voltages             = ACT8865_VOLTAGE_NUM,          \
 252                .linear_ranges          = act8865_voltage_ranges,       \
 253                .n_linear_ranges        = ARRAY_SIZE(act8865_voltage_ranges), \
 254                .vsel_reg               = _family##_##_id##_##_vsel_reg, \
 255                .vsel_mask              = ACT8865_VSEL_MASK,            \
 256                .enable_reg             = _family##_##_id##_CTRL,       \
 257                .enable_mask            = ACT8865_ENA,                  \
 258                .owner                  = THIS_MODULE,                  \
 259        }
 260
 261static const struct regulator_desc act8600_regulators[] = {
 262        ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
 263        ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
 264        ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
 265        {
 266                .name = "SUDCDC_REG4",
 267                .id = ACT8600_ID_SUDCDC4,
 268                .ops = &act8865_ops,
 269                .type = REGULATOR_VOLTAGE,
 270                .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
 271                .linear_ranges = act8600_sudcdc_voltage_ranges,
 272                .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
 273                .vsel_reg = ACT8600_SUDCDC4_VSET,
 274                .vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
 275                .enable_reg = ACT8600_SUDCDC4_CTRL,
 276                .enable_mask = ACT8865_ENA,
 277                .owner = THIS_MODULE,
 278        },
 279        ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
 280        ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
 281        ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
 282        ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
 283        {
 284                .name = "LDO_REG9",
 285                .id = ACT8600_ID_LDO9,
 286                .ops = &act8865_ldo_ops,
 287                .type = REGULATOR_VOLTAGE,
 288                .n_voltages = 1,
 289                .fixed_uV = 3300000,
 290                .enable_reg = ACT8600_LDO910_CTRL,
 291                .enable_mask = ACT8865_ENA,
 292                .owner = THIS_MODULE,
 293        },
 294        {
 295                .name = "LDO_REG10",
 296                .id = ACT8600_ID_LDO10,
 297                .ops = &act8865_ldo_ops,
 298                .type = REGULATOR_VOLTAGE,
 299                .n_voltages = 1,
 300                .fixed_uV = 1200000,
 301                .enable_reg = ACT8600_LDO910_CTRL,
 302                .enable_mask = ACT8600_LDO10_ENA,
 303                .owner = THIS_MODULE,
 304        },
 305};
 306
 307static const struct regulator_desc act8846_regulators[] = {
 308        ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
 309        ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
 310        ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
 311        ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
 312        ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
 313        ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
 314        ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
 315        ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
 316        ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
 317        ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
 318        ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
 319        ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
 320};
 321
 322static const struct regulator_desc act8865_regulators[] = {
 323        ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
 324        ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
 325        ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
 326        ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
 327        ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
 328        ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
 329        ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
 330};
 331
 332static const struct regulator_desc act8865_alt_regulators[] = {
 333        ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
 334        ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
 335        ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
 336        ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
 337        ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
 338        ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
 339        ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
 340};
 341
 342#ifdef CONFIG_OF
 343static const struct of_device_id act8865_dt_ids[] = {
 344        { .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
 345        { .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
 346        { .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
 347        { }
 348};
 349MODULE_DEVICE_TABLE(of, act8865_dt_ids);
 350
 351static struct of_regulator_match act8846_matches[] = {
 352        [ACT8846_ID_REG1]       = { .name = "REG1" },
 353        [ACT8846_ID_REG2]       = { .name = "REG2" },
 354        [ACT8846_ID_REG3]       = { .name = "REG3" },
 355        [ACT8846_ID_REG4]       = { .name = "REG4" },
 356        [ACT8846_ID_REG5]       = { .name = "REG5" },
 357        [ACT8846_ID_REG6]       = { .name = "REG6" },
 358        [ACT8846_ID_REG7]       = { .name = "REG7" },
 359        [ACT8846_ID_REG8]       = { .name = "REG8" },
 360        [ACT8846_ID_REG9]       = { .name = "REG9" },
 361        [ACT8846_ID_REG10]      = { .name = "REG10" },
 362        [ACT8846_ID_REG11]      = { .name = "REG11" },
 363        [ACT8846_ID_REG12]      = { .name = "REG12" },
 364};
 365
 366static struct of_regulator_match act8865_matches[] = {
 367        [ACT8865_ID_DCDC1]      = { .name = "DCDC_REG1"},
 368        [ACT8865_ID_DCDC2]      = { .name = "DCDC_REG2"},
 369        [ACT8865_ID_DCDC3]      = { .name = "DCDC_REG3"},
 370        [ACT8865_ID_LDO1]       = { .name = "LDO_REG1"},
 371        [ACT8865_ID_LDO2]       = { .name = "LDO_REG2"},
 372        [ACT8865_ID_LDO3]       = { .name = "LDO_REG3"},
 373        [ACT8865_ID_LDO4]       = { .name = "LDO_REG4"},
 374};
 375
 376static struct of_regulator_match act8600_matches[] = {
 377        [ACT8600_ID_DCDC1]      = { .name = "DCDC_REG1"},
 378        [ACT8600_ID_DCDC2]      = { .name = "DCDC_REG2"},
 379        [ACT8600_ID_DCDC3]      = { .name = "DCDC_REG3"},
 380        [ACT8600_ID_SUDCDC4]    = { .name = "SUDCDC_REG4"},
 381        [ACT8600_ID_LDO5]       = { .name = "LDO_REG5"},
 382        [ACT8600_ID_LDO6]       = { .name = "LDO_REG6"},
 383        [ACT8600_ID_LDO7]       = { .name = "LDO_REG7"},
 384        [ACT8600_ID_LDO8]       = { .name = "LDO_REG8"},
 385        [ACT8600_ID_LDO9]       = { .name = "LDO_REG9"},
 386        [ACT8600_ID_LDO10]      = { .name = "LDO_REG10"},
 387};
 388
 389static int act8865_pdata_from_dt(struct device *dev,
 390                                 struct act8865_platform_data *pdata,
 391                                 unsigned long type)
 392{
 393        int matched, i, num_matches;
 394        struct device_node *np;
 395        struct act8865_regulator_data *regulator;
 396        struct of_regulator_match *matches;
 397
 398        np = of_get_child_by_name(dev->of_node, "regulators");
 399        if (!np) {
 400                dev_err(dev, "missing 'regulators' subnode in DT\n");
 401                return -EINVAL;
 402        }
 403
 404        switch (type) {
 405        case ACT8600:
 406                matches = act8600_matches;
 407                num_matches = ARRAY_SIZE(act8600_matches);
 408                break;
 409        case ACT8846:
 410                matches = act8846_matches;
 411                num_matches = ARRAY_SIZE(act8846_matches);
 412                break;
 413        case ACT8865:
 414                matches = act8865_matches;
 415                num_matches = ARRAY_SIZE(act8865_matches);
 416                break;
 417        default:
 418                dev_err(dev, "invalid device id %lu\n", type);
 419                return -EINVAL;
 420        }
 421
 422        matched = of_regulator_match(dev, np, matches, num_matches);
 423        of_node_put(np);
 424        if (matched <= 0)
 425                return matched;
 426
 427        pdata->regulators = devm_kzalloc(dev,
 428                                         sizeof(struct act8865_regulator_data) *
 429                                         num_matches, GFP_KERNEL);
 430        if (!pdata->regulators)
 431                return -ENOMEM;
 432
 433        pdata->num_regulators = num_matches;
 434        regulator = pdata->regulators;
 435
 436        for (i = 0; i < num_matches; i++) {
 437                regulator->id = i;
 438                regulator->name = matches[i].name;
 439                regulator->init_data = matches[i].init_data;
 440                regulator->of_node = matches[i].of_node;
 441                regulator++;
 442        }
 443
 444        return 0;
 445}
 446#else
 447static inline int act8865_pdata_from_dt(struct device *dev,
 448                                        struct act8865_platform_data *pdata,
 449                                        unsigned long type)
 450{
 451        return 0;
 452}
 453#endif
 454
 455static struct act8865_regulator_data *act8865_get_regulator_data(
 456                int id, struct act8865_platform_data *pdata)
 457{
 458        int i;
 459
 460        if (!pdata)
 461                return NULL;
 462
 463        for (i = 0; i < pdata->num_regulators; i++) {
 464                if (pdata->regulators[i].id == id)
 465                        return &pdata->regulators[i];
 466        }
 467
 468        return NULL;
 469}
 470
 471static struct i2c_client *act8865_i2c_client;
 472static void act8865_power_off(void)
 473{
 474        struct act8865 *act8865;
 475
 476        act8865 = i2c_get_clientdata(act8865_i2c_client);
 477        regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
 478        while (1);
 479}
 480
 481static int act8865_pmic_probe(struct i2c_client *client,
 482                              const struct i2c_device_id *i2c_id)
 483{
 484        const struct regulator_desc *regulators;
 485        struct act8865_platform_data pdata_of, *pdata;
 486        struct device *dev = &client->dev;
 487        int i, ret, num_regulators;
 488        struct act8865 *act8865;
 489        const struct regmap_config *regmap_config;
 490        unsigned long type;
 491        int off_reg, off_mask;
 492        int voltage_select = 0;
 493
 494        pdata = dev_get_platdata(dev);
 495
 496        if (dev->of_node && !pdata) {
 497                const struct of_device_id *id;
 498
 499                id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
 500                if (!id)
 501                        return -ENODEV;
 502
 503                type = (unsigned long) id->data;
 504
 505                voltage_select = !!of_get_property(dev->of_node,
 506                                                   "active-semi,vsel-high",
 507                                                   NULL);
 508        } else {
 509                type = i2c_id->driver_data;
 510        }
 511
 512        switch (type) {
 513        case ACT8600:
 514                regulators = act8600_regulators;
 515                num_regulators = ARRAY_SIZE(act8600_regulators);
 516                regmap_config = &act8600_regmap_config;
 517                off_reg = -1;
 518                off_mask = -1;
 519                break;
 520        case ACT8846:
 521                regulators = act8846_regulators;
 522                num_regulators = ARRAY_SIZE(act8846_regulators);
 523                regmap_config = &act8865_regmap_config;
 524                off_reg = ACT8846_GLB_OFF_CTRL;
 525                off_mask = ACT8846_OFF_SYSMASK;
 526                break;
 527        case ACT8865:
 528                if (voltage_select) {
 529                        regulators = act8865_alt_regulators;
 530                        num_regulators = ARRAY_SIZE(act8865_alt_regulators);
 531                } else {
 532                        regulators = act8865_regulators;
 533                        num_regulators = ARRAY_SIZE(act8865_regulators);
 534                }
 535                regmap_config = &act8865_regmap_config;
 536                off_reg = ACT8865_SYS_CTRL;
 537                off_mask = ACT8865_MSTROFF;
 538                break;
 539        default:
 540                dev_err(dev, "invalid device id %lu\n", type);
 541                return -EINVAL;
 542        }
 543
 544        if (dev->of_node && !pdata) {
 545                ret = act8865_pdata_from_dt(dev, &pdata_of, type);
 546                if (ret < 0)
 547                        return ret;
 548
 549                pdata = &pdata_of;
 550        }
 551
 552        act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
 553        if (!act8865)
 554                return -ENOMEM;
 555
 556        act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
 557        if (IS_ERR(act8865->regmap)) {
 558                ret = PTR_ERR(act8865->regmap);
 559                dev_err(dev, "Failed to allocate register map: %d\n", ret);
 560                return ret;
 561        }
 562
 563        if (of_device_is_system_power_controller(dev->of_node)) {
 564                if (!pm_power_off && (off_reg > 0)) {
 565                        act8865_i2c_client = client;
 566                        act8865->off_reg = off_reg;
 567                        act8865->off_mask = off_mask;
 568                        pm_power_off = act8865_power_off;
 569                } else {
 570                        dev_err(dev, "Failed to set poweroff capability, already defined\n");
 571                }
 572        }
 573
 574        /* Finally register devices */
 575        for (i = 0; i < num_regulators; i++) {
 576                const struct regulator_desc *desc = &regulators[i];
 577                struct regulator_config config = { };
 578                struct act8865_regulator_data *rdata;
 579                struct regulator_dev *rdev;
 580
 581                config.dev = dev;
 582                config.driver_data = act8865;
 583                config.regmap = act8865->regmap;
 584
 585                rdata = act8865_get_regulator_data(desc->id, pdata);
 586                if (rdata) {
 587                        config.init_data = rdata->init_data;
 588                        config.of_node = rdata->of_node;
 589                }
 590
 591                rdev = devm_regulator_register(dev, desc, &config);
 592                if (IS_ERR(rdev)) {
 593                        dev_err(dev, "failed to register %s\n", desc->name);
 594                        return PTR_ERR(rdev);
 595                }
 596        }
 597
 598        i2c_set_clientdata(client, act8865);
 599
 600        return 0;
 601}
 602
 603static const struct i2c_device_id act8865_ids[] = {
 604        { .name = "act8600", .driver_data = ACT8600 },
 605        { .name = "act8846", .driver_data = ACT8846 },
 606        { .name = "act8865", .driver_data = ACT8865 },
 607        { },
 608};
 609MODULE_DEVICE_TABLE(i2c, act8865_ids);
 610
 611static struct i2c_driver act8865_pmic_driver = {
 612        .driver = {
 613                .name   = "act8865",
 614        },
 615        .probe          = act8865_pmic_probe,
 616        .id_table       = act8865_ids,
 617};
 618
 619module_i2c_driver(act8865_pmic_driver);
 620
 621MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
 622MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
 623MODULE_LICENSE("GPL v2");
 624
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