drivers/regulator/act8865-regulator.c

   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      256
 135
 136 struct act8865 {
 137         struct regmap *regmap;
 138         int off_reg;
 139         int off_mask;
 140 };
 141
 142 static 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
 163 static const struct regmap_range act8600_reg_ro_ranges[] = {
 164         regmap_reg_range(0xAA, 0xAA),
 165         regmap_reg_range(0xC1, 0xC1),
 166 };
 167
 168 static 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
 184 static 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
 191 static 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
 196 static 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
 201 static 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
 210 static const struct regmap_config act8865_regmap_config = {
 211         .reg_bits = 8,
 212         .val_bits = 8,
 213 };
 214
 215 static 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
 221 static 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, 192, 247, 400000),
 226         REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),
 227 };
 228
 229 static const struct regulator_ops act8865_ops = {
 230         .list_voltage           = regulator_list_voltage_linear_range,
 231         .map_voltage            = regulator_map_voltage_linear_range,
 232         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 233         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 234         .enable                 = regulator_enable_regmap,
 235         .disable                = regulator_disable_regmap,
 236         .is_enabled             = regulator_is_enabled_regmap,
 237 };
 238
 239 static const struct regulator_ops act8865_ldo_ops = {
 240         .enable                 = regulator_enable_regmap,
 241         .disable                = regulator_disable_regmap,
 242         .is_enabled             = regulator_is_enabled_regmap,
 243 };
 244
 245 #define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply)            \
 246         [_family##_ID_##_id] = {                                        \
 247                 .name                   = _name,                        \
 248                 .of_match               = of_match_ptr(_name),          \
 249                 .regulators_node        = of_match_ptr("regulators"),   \
 250                 .supply_name            = _supply,                      \
 251                 .id                     = _family##_ID_##_id,           \
 252                 .type                   = REGULATOR_VOLTAGE,            \
 253                 .ops                    = &act8865_ops,                 \
 254                 .n_voltages             = ACT8865_VOLTAGE_NUM,          \
 255                 .linear_ranges          = act8865_voltage_ranges,       \
 256                 .n_linear_ranges        = ARRAY_SIZE(act8865_voltage_ranges), \
 257                 .vsel_reg               = _family##_##_id##_##_vsel_reg, \
 258                 .vsel_mask              = ACT8865_VSEL_MASK,            \
 259                 .enable_reg             = _family##_##_id##_CTRL,       \
 260                 .enable_mask            = ACT8865_ENA,                  \
 261                 .owner                  = THIS_MODULE,                  \
 262         }
 263
 264 static const struct regulator_desc act8600_regulators[] = {
 265         ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
 266         ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
 267         ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
 268         {
 269                 .name = "SUDCDC_REG4",
 270                 .of_match = of_match_ptr("SUDCDC_REG4"),
 271                 .regulators_node = of_match_ptr("regulators"),
 272                 .id = ACT8600_ID_SUDCDC4,
 273                 .ops = &act8865_ops,
 274                 .type = REGULATOR_VOLTAGE,
 275                 .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
 276                 .linear_ranges = act8600_sudcdc_voltage_ranges,
 277                 .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
 278                 .vsel_reg = ACT8600_SUDCDC4_VSET,
 279                 .vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
 280                 .enable_reg = ACT8600_SUDCDC4_CTRL,
 281                 .enable_mask = ACT8865_ENA,
 282                 .owner = THIS_MODULE,
 283         },
 284         ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
 285         ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
 286         ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
 287         ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
 288         {
 289                 .name = "LDO_REG9",
 290                 .of_match = of_match_ptr("LDO_REG9"),
 291                 .regulators_node = of_match_ptr("regulators"),
 292                 .id = ACT8600_ID_LDO9,
 293                 .ops = &act8865_ldo_ops,
 294                 .type = REGULATOR_VOLTAGE,
 295                 .n_voltages = 1,
 296                 .fixed_uV = 3300000,
 297                 .enable_reg = ACT8600_LDO910_CTRL,
 298                 .enable_mask = ACT8865_ENA,
 299                 .owner = THIS_MODULE,
 300         },
 301         {
 302                 .name = "LDO_REG10",
 303                 .of_match = of_match_ptr("LDO_REG10"),
 304                 .regulators_node = of_match_ptr("regulators"),
 305                 .id = ACT8600_ID_LDO10,
 306                 .ops = &act8865_ldo_ops,
 307                 .type = REGULATOR_VOLTAGE,
 308                 .n_voltages = 1,
 309                 .fixed_uV = 1200000,
 310                 .enable_reg = ACT8600_LDO910_CTRL,
 311                 .enable_mask = ACT8600_LDO10_ENA,
 312                 .owner = THIS_MODULE,
 313         },
 314 };
 315
 316 static const struct regulator_desc act8846_regulators[] = {
 317         ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
 318         ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
 319         ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
 320         ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
 321         ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
 322         ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
 323         ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
 324         ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
 325         ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
 326         ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
 327         ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
 328         ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
 329 };
 330
 331 static const struct regulator_desc act8865_regulators[] = {
 332         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
 333         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
 334         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
 335         ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
 336         ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
 337         ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
 338         ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
 339 };
 340
 341 static const struct regulator_desc act8865_alt_regulators[] = {
 342         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
 343         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
 344         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
 345         ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
 346         ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
 347         ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
 348         ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
 349 };
 350
 351 #ifdef CONFIG_OF
 352 static const struct of_device_id act8865_dt_ids[] = {
 353         { .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
 354         { .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
 355         { .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
 356         { }
 357 };
 358 MODULE_DEVICE_TABLE(of, act8865_dt_ids);
 359 #endif
 360
 361 static struct act8865_regulator_data *act8865_get_regulator_data(
 362                 int id, struct act8865_platform_data *pdata)
 363 {
 364         int i;
 365
 366         for (i = 0; i < pdata->num_regulators; i++) {
 367                 if (pdata->regulators[i].id == id)
 368                         return &pdata->regulators[i];
 369         }
 370
 371         return NULL;
 372 }
 373
 374 static struct i2c_client *act8865_i2c_client;
 375 static void act8865_power_off(void)
 376 {
 377         struct act8865 *act8865;
 378
 379         act8865 = i2c_get_clientdata(act8865_i2c_client);
 380         regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
 381         while (1);
 382 }
 383
 384 static int act8865_pmic_probe(struct i2c_client *client,
 385                               const struct i2c_device_id *i2c_id)
 386 {
 387         const struct regulator_desc *regulators;
 388         struct act8865_platform_data *pdata = NULL;
 389         struct device *dev = &client->dev;
 390         int i, ret, num_regulators;
 391         struct act8865 *act8865;
 392         const struct regmap_config *regmap_config;
 393         unsigned long type;
 394         int off_reg, off_mask;
 395         int voltage_select = 0;
 396
 397         if (dev->of_node) {
 398                 const struct of_device_id *id;
 399
 400                 id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
 401                 if (!id)
 402                         return -ENODEV;
 403
 404                 type = (unsigned long) id->data;
 405
 406                 voltage_select = !!of_get_property(dev->of_node,
 407                                                    "active-semi,vsel-high",
 408                                                    NULL);
 409         } else {
 410                 type = i2c_id->driver_data;
 411                 pdata = dev_get_platdata(dev);
 412         }
 413
 414         switch (type) {
 415         case ACT8600:
 416                 regulators = act8600_regulators;
 417                 num_regulators = ARRAY_SIZE(act8600_regulators);
 418                 regmap_config = &act8600_regmap_config;
 419                 off_reg = -1;
 420                 off_mask = -1;
 421                 break;
 422         case ACT8846:
 423                 regulators = act8846_regulators;
 424                 num_regulators = ARRAY_SIZE(act8846_regulators);
 425                 regmap_config = &act8865_regmap_config;
 426                 off_reg = ACT8846_GLB_OFF_CTRL;
 427                 off_mask = ACT8846_OFF_SYSMASK;
 428                 break;
 429         case ACT8865:
 430                 if (voltage_select) {
 431                         regulators = act8865_alt_regulators;
 432                         num_regulators = ARRAY_SIZE(act8865_alt_regulators);
 433                 } else {
 434                         regulators = act8865_regulators;
 435                         num_regulators = ARRAY_SIZE(act8865_regulators);
 436                 }
 437                 regmap_config = &act8865_regmap_config;
 438                 off_reg = ACT8865_SYS_CTRL;
 439                 off_mask = ACT8865_MSTROFF;
 440                 break;
 441         default:
 442                 dev_err(dev, "invalid device id %lu\n", type);
 443                 return -EINVAL;
 444         }
 445
 446         act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
 447         if (!act8865)
 448                 return -ENOMEM;
 449
 450         act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
 451         if (IS_ERR(act8865->regmap)) {
 452                 ret = PTR_ERR(act8865->regmap);
 453                 dev_err(dev, "Failed to allocate register map: %d\n", ret);
 454                 return ret;
 455         }
 456
 457         if (of_device_is_system_power_controller(dev->of_node)) {
 458                 if (!pm_power_off && (off_reg > 0)) {
 459                         act8865_i2c_client = client;
 460                         act8865->off_reg = off_reg;
 461                         act8865->off_mask = off_mask;
 462                         pm_power_off = act8865_power_off;
 463                 } else {
 464                         dev_err(dev, "Failed to set poweroff capability, already defined\n");
 465                 }
 466         }
 467
 468         /* Finally register devices */
 469         for (i = 0; i < num_regulators; i++) {
 470                 const struct regulator_desc *desc = &regulators[i];
 471                 struct regulator_config config = { };
 472                 struct regulator_dev *rdev;
 473
 474                 config.dev = dev;
 475                 config.driver_data = act8865;
 476                 config.regmap = act8865->regmap;
 477
 478                 if (pdata) {
 479                         struct act8865_regulator_data *rdata;
 480
 481                         rdata = act8865_get_regulator_data(desc->id, pdata);
 482                         if (rdata) {
 483                                 config.init_data = rdata->init_data;
 484                                 config.of_node = rdata->of_node;
 485                         }
 486                 }
 487
 488                 rdev = devm_regulator_register(dev, desc, &config);
 489                 if (IS_ERR(rdev)) {
 490                         dev_err(dev, "failed to register %s\n", desc->name);
 491                         return PTR_ERR(rdev);
 492                 }
 493         }
 494
 495         i2c_set_clientdata(client, act8865);
 496
 497         return 0;
 498 }
 499
 500 static const struct i2c_device_id act8865_ids[] = {
 501         { .name = "act8600", .driver_data = ACT8600 },
 502         { .name = "act8846", .driver_data = ACT8846 },
 503         { .name = "act8865", .driver_data = ACT8865 },
 504         { },
 505 };
 506 MODULE_DEVICE_TABLE(i2c, act8865_ids);
 507
 508 static struct i2c_driver act8865_pmic_driver = {
 509         .driver = {
 510                 .name   = "act8865",
 511         },
 512         .probe          = act8865_pmic_probe,
 513         .id_table       = act8865_ids,
 514 };
 515
 516 module_i2c_driver(act8865_pmic_driver);
 517
 518 MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
 519 MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
 520 MODULE_LICENSE("GPL v2");