drivers/regulator/act8865-regulator.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
   4  *
   5  * http://www.active-semi.com/products/power-management-units/act88xx/
   6  *
   7  * Copyright (C) 2013 Atmel Corporation
   8  */
   9
  10 #include <linux/module.h>
  11 #include <linux/init.h>
  12 #include <linux/i2c.h>
  13 #include <linux/err.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/regulator/driver.h>
  16 #include <linux/regulator/act8865.h>
  17 #include <linux/of.h>
  18 #include <linux/of_device.h>
  19 #include <linux/power_supply.h>
  20 #include <linux/regulator/of_regulator.h>
  21 #include <linux/regmap.h>
  22 #include <dt-bindings/regulator/active-semi,8865-regulator.h>
  23
  24 /*
  25  * ACT8600 Global Register Map.
  26  */
  27 #define ACT8600_SYS_MODE        0x00
  28 #define ACT8600_SYS_CTRL        0x01
  29 #define ACT8600_DCDC1_VSET      0x10
  30 #define ACT8600_DCDC1_CTRL      0x12
  31 #define ACT8600_DCDC2_VSET      0x20
  32 #define ACT8600_DCDC2_CTRL      0x22
  33 #define ACT8600_DCDC3_VSET      0x30
  34 #define ACT8600_DCDC3_CTRL      0x32
  35 #define ACT8600_SUDCDC4_VSET    0x40
  36 #define ACT8600_SUDCDC4_CTRL    0x41
  37 #define ACT8600_LDO5_VSET       0x50
  38 #define ACT8600_LDO5_CTRL       0x51
  39 #define ACT8600_LDO6_VSET       0x60
  40 #define ACT8600_LDO6_CTRL       0x61
  41 #define ACT8600_LDO7_VSET       0x70
  42 #define ACT8600_LDO7_CTRL       0x71
  43 #define ACT8600_LDO8_VSET       0x80
  44 #define ACT8600_LDO8_CTRL       0x81
  45 #define ACT8600_LDO910_CTRL     0x91
  46 #define ACT8600_APCH0           0xA1
  47 #define ACT8600_APCH1           0xA8
  48 #define ACT8600_APCH2           0xA9
  49 #define ACT8600_APCH_STAT       0xAA
  50 #define ACT8600_OTG0            0xB0
  51 #define ACT8600_OTG1            0xB2
  52
  53 /*
  54  * ACT8846 Global Register Map.
  55  */
  56 #define ACT8846_SYS0            0x00
  57 #define ACT8846_SYS1            0x01
  58 #define ACT8846_REG1_VSET       0x10
  59 #define ACT8846_REG1_CTRL       0x12
  60 #define ACT8846_REG2_VSET0      0x20
  61 #define ACT8846_REG2_VSET1      0x21
  62 #define ACT8846_REG2_CTRL       0x22
  63 #define ACT8846_REG3_VSET0      0x30
  64 #define ACT8846_REG3_VSET1      0x31
  65 #define ACT8846_REG3_CTRL       0x32
  66 #define ACT8846_REG4_VSET0      0x40
  67 #define ACT8846_REG4_VSET1      0x41
  68 #define ACT8846_REG4_CTRL       0x42
  69 #define ACT8846_REG5_VSET       0x50
  70 #define ACT8846_REG5_CTRL       0x51
  71 #define ACT8846_REG6_VSET       0x58
  72 #define ACT8846_REG6_CTRL       0x59
  73 #define ACT8846_REG7_VSET       0x60
  74 #define ACT8846_REG7_CTRL       0x61
  75 #define ACT8846_REG8_VSET       0x68
  76 #define ACT8846_REG8_CTRL       0x69
  77 #define ACT8846_REG9_VSET       0x70
  78 #define ACT8846_REG9_CTRL       0x71
  79 #define ACT8846_REG10_VSET      0x80
  80 #define ACT8846_REG10_CTRL      0x81
  81 #define ACT8846_REG11_VSET      0x90
  82 #define ACT8846_REG11_CTRL      0x91
  83 #define ACT8846_REG12_VSET      0xa0
  84 #define ACT8846_REG12_CTRL      0xa1
  85 #define ACT8846_REG13_CTRL      0xb1
  86 #define ACT8846_GLB_OFF_CTRL    0xc3
  87 #define ACT8846_OFF_SYSMASK     0x18
  88
  89 /*
  90  * ACT8865 Global Register Map.
  91  */
  92 #define ACT8865_SYS_MODE        0x00
  93 #define ACT8865_SYS_CTRL        0x01
  94 #define ACT8865_SYS_UNLK_REGS   0x0b
  95 #define ACT8865_DCDC1_VSET1     0x20
  96 #define ACT8865_DCDC1_VSET2     0x21
  97 #define ACT8865_DCDC1_CTRL      0x22
  98 #define ACT8865_DCDC1_SUS       0x24
  99 #define ACT8865_DCDC2_VSET1     0x30
 100 #define ACT8865_DCDC2_VSET2     0x31
 101 #define ACT8865_DCDC2_CTRL      0x32
 102 #define ACT8865_DCDC2_SUS       0x34
 103 #define ACT8865_DCDC3_VSET1     0x40
 104 #define ACT8865_DCDC3_VSET2     0x41
 105 #define ACT8865_DCDC3_CTRL      0x42
 106 #define ACT8865_DCDC3_SUS       0x44
 107 #define ACT8865_LDO1_VSET       0x50
 108 #define ACT8865_LDO1_CTRL       0x51
 109 #define ACT8865_LDO1_SUS        0x52
 110 #define ACT8865_LDO2_VSET       0x54
 111 #define ACT8865_LDO2_CTRL       0x55
 112 #define ACT8865_LDO2_SUS        0x56
 113 #define ACT8865_LDO3_VSET       0x60
 114 #define ACT8865_LDO3_CTRL       0x61
 115 #define ACT8865_LDO3_SUS        0x62
 116 #define ACT8865_LDO4_VSET       0x64
 117 #define ACT8865_LDO4_CTRL       0x65
 118 #define ACT8865_LDO4_SUS        0x66
 119 #define ACT8865_MSTROFF         0x20
 120
 121 /*
 122  * Field Definitions.
 123  */
 124 #define ACT8865_ENA             0x80    /* ON - [7] */
 125 #define ACT8865_DIS             0x40    /* DIS - [6] */
 126
 127 #define ACT8865_VSEL_MASK       0x3F    /* VSET - [5:0] */
 128
 129
 130 #define ACT8600_LDO10_ENA               0x40    /* ON - [6] */
 131 #define ACT8600_SUDCDC_VSEL_MASK        0xFF    /* SUDCDC VSET - [7:0] */
 132
 133 #define ACT8600_APCH_CHG_ACIN           BIT(7)
 134 #define ACT8600_APCH_CHG_USB            BIT(6)
 135 #define ACT8600_APCH_CSTATE0            BIT(5)
 136 #define ACT8600_APCH_CSTATE1            BIT(4)
 137
 138 /*
 139  * ACT8865 voltage number
 140  */
 141 #define ACT8865_VOLTAGE_NUM     64
 142 #define ACT8600_SUDCDC_VOLTAGE_NUM      256
 143
 144 struct act8865 {
 145         struct regmap *regmap;
 146         int off_reg;
 147         int off_mask;
 148 };
 149
 150 static const struct regmap_range act8600_reg_ranges[] = {
 151         regmap_reg_range(0x00, 0x01),
 152         regmap_reg_range(0x10, 0x10),
 153         regmap_reg_range(0x12, 0x12),
 154         regmap_reg_range(0x20, 0x20),
 155         regmap_reg_range(0x22, 0x22),
 156         regmap_reg_range(0x30, 0x30),
 157         regmap_reg_range(0x32, 0x32),
 158         regmap_reg_range(0x40, 0x41),
 159         regmap_reg_range(0x50, 0x51),
 160         regmap_reg_range(0x60, 0x61),
 161         regmap_reg_range(0x70, 0x71),
 162         regmap_reg_range(0x80, 0x81),
 163         regmap_reg_range(0x91, 0x91),
 164         regmap_reg_range(0xA1, 0xA1),
 165         regmap_reg_range(0xA8, 0xAA),
 166         regmap_reg_range(0xB0, 0xB0),
 167         regmap_reg_range(0xB2, 0xB2),
 168         regmap_reg_range(0xC1, 0xC1),
 169 };
 170
 171 static const struct regmap_range act8600_reg_ro_ranges[] = {
 172         regmap_reg_range(0xAA, 0xAA),
 173         regmap_reg_range(0xC1, 0xC1),
 174 };
 175
 176 static const struct regmap_range act8600_reg_volatile_ranges[] = {
 177         regmap_reg_range(0x00, 0x01),
 178         regmap_reg_range(0x12, 0x12),
 179         regmap_reg_range(0x22, 0x22),
 180         regmap_reg_range(0x32, 0x32),
 181         regmap_reg_range(0x41, 0x41),
 182         regmap_reg_range(0x51, 0x51),
 183         regmap_reg_range(0x61, 0x61),
 184         regmap_reg_range(0x71, 0x71),
 185         regmap_reg_range(0x81, 0x81),
 186         regmap_reg_range(0xA8, 0xA8),
 187         regmap_reg_range(0xAA, 0xAA),
 188         regmap_reg_range(0xB0, 0xB0),
 189         regmap_reg_range(0xC1, 0xC1),
 190 };
 191
 192 static const struct regmap_access_table act8600_write_ranges_table = {
 193         .yes_ranges     = act8600_reg_ranges,
 194         .n_yes_ranges   = ARRAY_SIZE(act8600_reg_ranges),
 195         .no_ranges      = act8600_reg_ro_ranges,
 196         .n_no_ranges    = ARRAY_SIZE(act8600_reg_ro_ranges),
 197 };
 198
 199 static const struct regmap_access_table act8600_read_ranges_table = {
 200         .yes_ranges     = act8600_reg_ranges,
 201         .n_yes_ranges   = ARRAY_SIZE(act8600_reg_ranges),
 202 };
 203
 204 static const struct regmap_access_table act8600_volatile_ranges_table = {
 205         .yes_ranges     = act8600_reg_volatile_ranges,
 206         .n_yes_ranges   = ARRAY_SIZE(act8600_reg_volatile_ranges),
 207 };
 208
 209 static const struct regmap_config act8600_regmap_config = {
 210         .reg_bits = 8,
 211         .val_bits = 8,
 212         .max_register = 0xFF,
 213         .wr_table = &act8600_write_ranges_table,
 214         .rd_table = &act8600_read_ranges_table,
 215         .volatile_table = &act8600_volatile_ranges_table,
 216 };
 217
 218 static const struct regmap_config act8865_regmap_config = {
 219         .reg_bits = 8,
 220         .val_bits = 8,
 221 };
 222
 223 static const struct linear_range act8865_voltage_ranges[] = {
 224         REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
 225         REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
 226         REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
 227 };
 228
 229 static const struct linear_range act8600_sudcdc_voltage_ranges[] = {
 230         REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),
 231         REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),
 232         REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),
 233         REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000),
 234         REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),
 235 };
 236
 237 static int act8865_set_suspend_state(struct regulator_dev *rdev, bool enable)
 238 {
 239         struct regmap *regmap = rdev->regmap;
 240         int id = rdev->desc->id, reg, val;
 241
 242         switch (id) {
 243         case ACT8865_ID_DCDC1:
 244                 reg = ACT8865_DCDC1_SUS;
 245                 val = 0xa8;
 246                 break;
 247         case ACT8865_ID_DCDC2:
 248                 reg = ACT8865_DCDC2_SUS;
 249                 val = 0xa8;
 250                 break;
 251         case ACT8865_ID_DCDC3:
 252                 reg = ACT8865_DCDC3_SUS;
 253                 val = 0xa8;
 254                 break;
 255         case ACT8865_ID_LDO1:
 256                 reg = ACT8865_LDO1_SUS;
 257                 val = 0xe8;
 258                 break;
 259         case ACT8865_ID_LDO2:
 260                 reg = ACT8865_LDO2_SUS;
 261                 val = 0xe8;
 262                 break;
 263         case ACT8865_ID_LDO3:
 264                 reg = ACT8865_LDO3_SUS;
 265                 val = 0xe8;
 266                 break;
 267         case ACT8865_ID_LDO4:
 268                 reg = ACT8865_LDO4_SUS;
 269                 val = 0xe8;
 270                 break;
 271         default:
 272                 return -EINVAL;
 273         }
 274
 275         if (enable)
 276                 val |= BIT(4);
 277
 278         /*
 279          * Ask the PMIC to enable/disable this output when entering hibernate
 280          * mode.
 281          */
 282         return regmap_write(regmap, reg, val);
 283 }
 284
 285 static int act8865_set_suspend_enable(struct regulator_dev *rdev)
 286 {
 287         return act8865_set_suspend_state(rdev, true);
 288 }
 289
 290 static int act8865_set_suspend_disable(struct regulator_dev *rdev)
 291 {
 292         return act8865_set_suspend_state(rdev, false);
 293 }
 294
 295 static unsigned int act8865_of_map_mode(unsigned int mode)
 296 {
 297         switch (mode) {
 298         case ACT8865_REGULATOR_MODE_FIXED:
 299                 return REGULATOR_MODE_FAST;
 300         case ACT8865_REGULATOR_MODE_NORMAL:
 301                 return REGULATOR_MODE_NORMAL;
 302         case ACT8865_REGULATOR_MODE_LOWPOWER:
 303                 return REGULATOR_MODE_STANDBY;
 304         default:
 305                 return REGULATOR_MODE_INVALID;
 306         }
 307 }
 308
 309 static int act8865_set_mode(struct regulator_dev *rdev, unsigned int mode)
 310 {
 311         struct regmap *regmap = rdev->regmap;
 312         int id = rdev_get_id(rdev);
 313         int reg, val = 0;
 314
 315         switch (id) {
 316         case ACT8865_ID_DCDC1:
 317                 reg = ACT8865_DCDC1_CTRL;
 318                 break;
 319         case ACT8865_ID_DCDC2:
 320                 reg = ACT8865_DCDC2_CTRL;
 321                 break;
 322         case ACT8865_ID_DCDC3:
 323                 reg = ACT8865_DCDC3_CTRL;
 324                 break;
 325         case ACT8865_ID_LDO1:
 326                 reg = ACT8865_LDO1_CTRL;
 327                 break;
 328         case ACT8865_ID_LDO2:
 329                 reg = ACT8865_LDO2_CTRL;
 330                 break;
 331         case ACT8865_ID_LDO3:
 332                 reg = ACT8865_LDO3_CTRL;
 333                 break;
 334         case ACT8865_ID_LDO4:
 335                 reg = ACT8865_LDO4_CTRL;
 336                 break;
 337         default:
 338                 return -EINVAL;
 339         }
 340
 341         switch (mode) {
 342         case REGULATOR_MODE_FAST:
 343         case REGULATOR_MODE_NORMAL:
 344                 if (id <= ACT8865_ID_DCDC3)
 345                         val = BIT(5);
 346                 break;
 347         case REGULATOR_MODE_STANDBY:
 348                 if (id > ACT8865_ID_DCDC3)
 349                         val = BIT(5);
 350                 break;
 351         default:
 352                 return -EINVAL;
 353         }
 354
 355         return regmap_update_bits(regmap, reg, BIT(5), val);
 356 }
 357
 358 static unsigned int act8865_get_mode(struct regulator_dev *rdev)
 359 {
 360         struct regmap *regmap = rdev->regmap;
 361         int id = rdev_get_id(rdev);
 362         int reg, ret, val = 0;
 363
 364         switch (id) {
 365         case ACT8865_ID_DCDC1:
 366                 reg = ACT8865_DCDC1_CTRL;
 367                 break;
 368         case ACT8865_ID_DCDC2:
 369                 reg = ACT8865_DCDC2_CTRL;
 370                 break;
 371         case ACT8865_ID_DCDC3:
 372                 reg = ACT8865_DCDC3_CTRL;
 373                 break;
 374         case ACT8865_ID_LDO1:
 375                 reg = ACT8865_LDO1_CTRL;
 376                 break;
 377         case ACT8865_ID_LDO2:
 378                 reg = ACT8865_LDO2_CTRL;
 379                 break;
 380         case ACT8865_ID_LDO3:
 381                 reg = ACT8865_LDO3_CTRL;
 382                 break;
 383         case ACT8865_ID_LDO4:
 384                 reg = ACT8865_LDO4_CTRL;
 385                 break;
 386         default:
 387                 return -EINVAL;
 388         }
 389
 390         ret = regmap_read(regmap, reg, &val);
 391         if (ret)
 392                 return ret;
 393
 394         if (id <= ACT8865_ID_DCDC3 && (val & BIT(5)))
 395                 return REGULATOR_MODE_FAST;
 396         else if (id > ACT8865_ID_DCDC3 && !(val & BIT(5)))
 397                 return REGULATOR_MODE_NORMAL;
 398         else
 399                 return REGULATOR_MODE_STANDBY;
 400 }
 401
 402 static const struct regulator_ops act8865_ops = {
 403         .list_voltage           = regulator_list_voltage_linear_range,
 404         .map_voltage            = regulator_map_voltage_linear_range,
 405         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 406         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 407         .enable                 = regulator_enable_regmap,
 408         .disable                = regulator_disable_regmap,
 409         .set_mode               = act8865_set_mode,
 410         .get_mode               = act8865_get_mode,
 411         .is_enabled             = regulator_is_enabled_regmap,
 412         .set_suspend_enable     = act8865_set_suspend_enable,
 413         .set_suspend_disable    = act8865_set_suspend_disable,
 414 };
 415
 416 static const struct regulator_ops act8865_ldo_ops = {
 417         .list_voltage           = regulator_list_voltage_linear_range,
 418         .map_voltage            = regulator_map_voltage_linear_range,
 419         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 420         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 421         .enable                 = regulator_enable_regmap,
 422         .disable                = regulator_disable_regmap,
 423         .set_mode               = act8865_set_mode,
 424         .get_mode               = act8865_get_mode,
 425         .is_enabled             = regulator_is_enabled_regmap,
 426         .set_suspend_enable     = act8865_set_suspend_enable,
 427         .set_suspend_disable    = act8865_set_suspend_disable,
 428         .set_pull_down          = regulator_set_pull_down_regmap,
 429 };
 430
 431 static const struct regulator_ops act8865_fixed_ldo_ops = {
 432         .enable                 = regulator_enable_regmap,
 433         .disable                = regulator_disable_regmap,
 434         .is_enabled             = regulator_is_enabled_regmap,
 435 };
 436
 437 #define ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, _ops)     \
 438         [_family##_ID_##_id] = {                                        \
 439                 .name                   = _name,                        \
 440                 .of_match               = of_match_ptr(_name),          \
 441                 .of_map_mode            = act8865_of_map_mode,          \
 442                 .regulators_node        = of_match_ptr("regulators"),   \
 443                 .supply_name            = _supply,                      \
 444                 .id                     = _family##_ID_##_id,           \
 445                 .type                   = REGULATOR_VOLTAGE,            \
 446                 .ops                    = _ops,                         \
 447                 .n_voltages             = ACT8865_VOLTAGE_NUM,          \
 448                 .linear_ranges          = act8865_voltage_ranges,       \
 449                 .n_linear_ranges        = ARRAY_SIZE(act8865_voltage_ranges), \
 450                 .vsel_reg               = _family##_##_id##_##_vsel_reg, \
 451                 .vsel_mask              = ACT8865_VSEL_MASK,            \
 452                 .enable_reg             = _family##_##_id##_CTRL,       \
 453                 .enable_mask            = ACT8865_ENA,                  \
 454                 .pull_down_reg          = _family##_##_id##_CTRL,       \
 455                 .pull_down_mask         = ACT8865_DIS,                  \
 456                 .owner                  = THIS_MODULE,                  \
 457         }
 458
 459 #define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply) \
 460         ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ops)
 461
 462 #define ACT88xx_LDO(_name, _family, _id, _vsel_reg, _supply) \
 463         ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ldo_ops)
 464
 465 static const struct regulator_desc act8600_regulators[] = {
 466         ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),
 467         ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),
 468         ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),
 469         {
 470                 .name = "SUDCDC_REG4",
 471                 .of_match = of_match_ptr("SUDCDC_REG4"),
 472                 .regulators_node = of_match_ptr("regulators"),
 473                 .id = ACT8600_ID_SUDCDC4,
 474                 .ops = &act8865_ops,
 475                 .type = REGULATOR_VOLTAGE,
 476                 .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,
 477                 .linear_ranges = act8600_sudcdc_voltage_ranges,
 478                 .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),
 479                 .vsel_reg = ACT8600_SUDCDC4_VSET,
 480                 .vsel_mask = ACT8600_SUDCDC_VSEL_MASK,
 481                 .enable_reg = ACT8600_SUDCDC4_CTRL,
 482                 .enable_mask = ACT8865_ENA,
 483                 .owner = THIS_MODULE,
 484         },
 485         ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),
 486         ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),
 487         ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),
 488         ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),
 489         {
 490                 .name = "LDO_REG9",
 491                 .of_match = of_match_ptr("LDO_REG9"),
 492                 .regulators_node = of_match_ptr("regulators"),
 493                 .id = ACT8600_ID_LDO9,
 494                 .ops = &act8865_fixed_ldo_ops,
 495                 .type = REGULATOR_VOLTAGE,
 496                 .n_voltages = 1,
 497                 .fixed_uV = 3300000,
 498                 .enable_reg = ACT8600_LDO910_CTRL,
 499                 .enable_mask = ACT8865_ENA,
 500                 .owner = THIS_MODULE,
 501         },
 502         {
 503                 .name = "LDO_REG10",
 504                 .of_match = of_match_ptr("LDO_REG10"),
 505                 .regulators_node = of_match_ptr("regulators"),
 506                 .id = ACT8600_ID_LDO10,
 507                 .ops = &act8865_fixed_ldo_ops,
 508                 .type = REGULATOR_VOLTAGE,
 509                 .n_voltages = 1,
 510                 .fixed_uV = 1200000,
 511                 .enable_reg = ACT8600_LDO910_CTRL,
 512                 .enable_mask = ACT8600_LDO10_ENA,
 513                 .owner = THIS_MODULE,
 514         },
 515 };
 516
 517 static const struct regulator_desc act8846_regulators[] = {
 518         ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),
 519         ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),
 520         ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),
 521         ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),
 522         ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),
 523         ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),
 524         ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),
 525         ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),
 526         ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),
 527         ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),
 528         ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),
 529         ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),
 530 };
 531
 532 static const struct regulator_desc act8865_regulators[] = {
 533         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),
 534         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),
 535         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),
 536         ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
 537         ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
 538         ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
 539         ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
 540 };
 541
 542 static const struct regulator_desc act8865_alt_regulators[] = {
 543         ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),
 544         ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),
 545         ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),
 546         ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),
 547         ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),
 548         ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),
 549         ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),
 550 };
 551
 552 #ifdef CONFIG_OF
 553 static const struct of_device_id act8865_dt_ids[] = {
 554         { .compatible = "active-semi,act8600", .data = (void *)ACT8600 },
 555         { .compatible = "active-semi,act8846", .data = (void *)ACT8846 },
 556         { .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
 557         { }
 558 };
 559 MODULE_DEVICE_TABLE(of, act8865_dt_ids);
 560 #endif
 561
 562 static struct act8865_regulator_data *act8865_get_regulator_data(
 563                 int id, struct act8865_platform_data *pdata)
 564 {
 565         int i;
 566
 567         for (i = 0; i < pdata->num_regulators; i++) {
 568                 if (pdata->regulators[i].id == id)
 569                         return &pdata->regulators[i];
 570         }
 571
 572         return NULL;
 573 }
 574
 575 static struct i2c_client *act8865_i2c_client;
 576 static void act8865_power_off(void)
 577 {
 578         struct act8865 *act8865;
 579
 580         act8865 = i2c_get_clientdata(act8865_i2c_client);
 581         regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);
 582         while (1);
 583 }
 584
 585 static int act8600_charger_get_status(struct regmap *map)
 586 {
 587         unsigned int val;
 588         int ret;
 589         u8 state0, state1;
 590
 591         ret = regmap_read(map, ACT8600_APCH_STAT, &val);
 592         if (ret < 0)
 593                 return ret;
 594
 595         state0 = val & ACT8600_APCH_CSTATE0;
 596         state1 = val & ACT8600_APCH_CSTATE1;
 597
 598         if (state0 && !state1)
 599                 return POWER_SUPPLY_STATUS_CHARGING;
 600         if (!state0 && state1)
 601                 return POWER_SUPPLY_STATUS_NOT_CHARGING;
 602         if (!state0 && !state1)
 603                 return POWER_SUPPLY_STATUS_DISCHARGING;
 604
 605         return POWER_SUPPLY_STATUS_UNKNOWN;
 606 }
 607
 608 static int act8600_charger_get_property(struct power_supply *psy,
 609                 enum power_supply_property psp, union power_supply_propval *val)
 610 {
 611         struct regmap *map = power_supply_get_drvdata(psy);
 612         int ret;
 613
 614         switch (psp) {
 615         case POWER_SUPPLY_PROP_STATUS:
 616                 ret = act8600_charger_get_status(map);
 617                 if (ret < 0)
 618                         return ret;
 619
 620                 val->intval = ret;
 621                 break;
 622         default:
 623                 return -EINVAL;
 624         }
 625
 626         return 0;
 627 }
 628
 629 static enum power_supply_property act8600_charger_properties[] = {
 630         POWER_SUPPLY_PROP_STATUS,
 631 };
 632
 633 static const struct power_supply_desc act8600_charger_desc = {
 634         .name = "act8600-charger",
 635         .type = POWER_SUPPLY_TYPE_BATTERY,
 636         .properties = act8600_charger_properties,
 637         .num_properties = ARRAY_SIZE(act8600_charger_properties),
 638         .get_property = act8600_charger_get_property,
 639 };
 640
 641 static int act8600_charger_probe(struct device *dev, struct regmap *regmap)
 642 {
 643         struct power_supply *charger;
 644         struct power_supply_config cfg = {
 645                 .drv_data = regmap,
 646                 .of_node = dev->of_node,
 647         };
 648
 649         charger = devm_power_supply_register(dev, &act8600_charger_desc, &cfg);
 650
 651         return PTR_ERR_OR_ZERO(charger);
 652 }
 653
 654 static int act8865_pmic_probe(struct i2c_client *client,
 655                               const struct i2c_device_id *i2c_id)
 656 {
 657         const struct regulator_desc *regulators;
 658         struct act8865_platform_data *pdata = NULL;
 659         struct device *dev = &client->dev;
 660         int i, ret, num_regulators;
 661         struct act8865 *act8865;
 662         const struct regmap_config *regmap_config;
 663         unsigned long type;
 664         int off_reg, off_mask;
 665         int voltage_select = 0;
 666
 667         if (dev->of_node) {
 668                 const struct of_device_id *id;
 669
 670                 id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
 671                 if (!id)
 672                         return -ENODEV;
 673
 674                 type = (unsigned long) id->data;
 675
 676                 voltage_select = !!of_get_property(dev->of_node,
 677                                                    "active-semi,vsel-high",
 678                                                    NULL);
 679         } else {
 680                 type = i2c_id->driver_data;
 681                 pdata = dev_get_platdata(dev);
 682         }
 683
 684         switch (type) {
 685         case ACT8600:
 686                 regulators = act8600_regulators;
 687                 num_regulators = ARRAY_SIZE(act8600_regulators);
 688                 regmap_config = &act8600_regmap_config;
 689                 off_reg = -1;
 690                 off_mask = -1;
 691                 break;
 692         case ACT8846:
 693                 regulators = act8846_regulators;
 694                 num_regulators = ARRAY_SIZE(act8846_regulators);
 695                 regmap_config = &act8865_regmap_config;
 696                 off_reg = ACT8846_GLB_OFF_CTRL;
 697                 off_mask = ACT8846_OFF_SYSMASK;
 698                 break;
 699         case ACT8865:
 700                 if (voltage_select) {
 701                         regulators = act8865_alt_regulators;
 702                         num_regulators = ARRAY_SIZE(act8865_alt_regulators);
 703                 } else {
 704                         regulators = act8865_regulators;
 705                         num_regulators = ARRAY_SIZE(act8865_regulators);
 706                 }
 707                 regmap_config = &act8865_regmap_config;
 708                 off_reg = ACT8865_SYS_CTRL;
 709                 off_mask = ACT8865_MSTROFF;
 710                 break;
 711         default:
 712                 dev_err(dev, "invalid device id %lu\n", type);
 713                 return -EINVAL;
 714         }
 715
 716         act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);
 717         if (!act8865)
 718                 return -ENOMEM;
 719
 720         act8865->regmap = devm_regmap_init_i2c(client, regmap_config);
 721         if (IS_ERR(act8865->regmap)) {
 722                 ret = PTR_ERR(act8865->regmap);
 723                 dev_err(dev, "Failed to allocate register map: %d\n", ret);
 724                 return ret;
 725         }
 726
 727         if (of_device_is_system_power_controller(dev->of_node)) {
 728                 if (!pm_power_off && (off_reg > 0)) {
 729                         act8865_i2c_client = client;
 730                         act8865->off_reg = off_reg;
 731                         act8865->off_mask = off_mask;
 732                         pm_power_off = act8865_power_off;
 733                 } else {
 734                         dev_err(dev, "Failed to set poweroff capability, already defined\n");
 735                 }
 736         }
 737
 738         /* Finally register devices */
 739         for (i = 0; i < num_regulators; i++) {
 740                 const struct regulator_desc *desc = &regulators[i];
 741                 struct regulator_config config = { };
 742                 struct regulator_dev *rdev;
 743
 744                 config.dev = dev;
 745                 config.driver_data = act8865;
 746                 config.regmap = act8865->regmap;
 747
 748                 if (pdata) {
 749                         struct act8865_regulator_data *rdata;
 750
 751                         rdata = act8865_get_regulator_data(desc->id, pdata);
 752                         if (rdata) {
 753                                 config.init_data = rdata->init_data;
 754                                 config.of_node = rdata->of_node;
 755                         }
 756                 }
 757
 758                 rdev = devm_regulator_register(dev, desc, &config);
 759                 if (IS_ERR(rdev)) {
 760                         dev_err(dev, "failed to register %s\n", desc->name);
 761                         return PTR_ERR(rdev);
 762                 }
 763         }
 764
 765         if (type == ACT8600) {
 766                 ret = act8600_charger_probe(dev, act8865->regmap);
 767                 if (ret < 0) {
 768                         if (ret != -EPROBE_DEFER)
 769                                 dev_err(dev, "Failed to probe charger");
 770                         return ret;
 771                 }
 772         }
 773
 774         i2c_set_clientdata(client, act8865);
 775
 776         /* Unlock expert registers for ACT8865. */
 777         return type != ACT8865 ? 0 : regmap_write(act8865->regmap,
 778                                                   ACT8865_SYS_UNLK_REGS, 0xef);
 779 }
 780
 781 static const struct i2c_device_id act8865_ids[] = {
 782         { .name = "act8600", .driver_data = ACT8600 },
 783         { .name = "act8846", .driver_data = ACT8846 },
 784         { .name = "act8865", .driver_data = ACT8865 },
 785         { },
 786 };
 787 MODULE_DEVICE_TABLE(i2c, act8865_ids);
 788
 789 static struct i2c_driver act8865_pmic_driver = {
 790         .driver = {
 791                 .name   = "act8865",
 792         },
 793         .probe          = act8865_pmic_probe,
 794         .id_table       = act8865_ids,
 795 };
 796
 797 module_i2c_driver(act8865_pmic_driver);
 798
 799 MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
 800 MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
 801 MODULE_LICENSE("GPL v2");