Pileus Git - ~andy/linux/blob - drivers/regulator/lp8788-ldo.c

   1 /*
   2  * TI LP8788 MFD - ldo regulator driver
   3  *
   4  * Copyright 2012 Texas Instruments
   5  *
   6  * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
   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 version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/slab.h>
  16 #include <linux/err.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/regulator/driver.h>
  19 #include <linux/gpio.h>
  20 #include <linux/mfd/lp8788.h>
  21
  22 /* register address */
  23 #define LP8788_EN_LDO_A                 0x0D    /* DLDO 1 ~ 8 */
  24 #define LP8788_EN_LDO_B                 0x0E    /* DLDO 9 ~ 12, ALDO 1 ~ 4 */
  25 #define LP8788_EN_LDO_C                 0x0F    /* ALDO 5 ~ 10 */
  26 #define LP8788_EN_SEL                   0x10
  27 #define LP8788_DLDO1_VOUT               0x2E
  28 #define LP8788_DLDO2_VOUT               0x2F
  29 #define LP8788_DLDO3_VOUT               0x30
  30 #define LP8788_DLDO4_VOUT               0x31
  31 #define LP8788_DLDO5_VOUT               0x32
  32 #define LP8788_DLDO6_VOUT               0x33
  33 #define LP8788_DLDO7_VOUT               0x34
  34 #define LP8788_DLDO8_VOUT               0x35
  35 #define LP8788_DLDO9_VOUT               0x36
  36 #define LP8788_DLDO10_VOUT              0x37
  37 #define LP8788_DLDO11_VOUT              0x38
  38 #define LP8788_DLDO12_VOUT              0x39
  39 #define LP8788_ALDO1_VOUT               0x3A
  40 #define LP8788_ALDO2_VOUT               0x3B
  41 #define LP8788_ALDO3_VOUT               0x3C
  42 #define LP8788_ALDO4_VOUT               0x3D
  43 #define LP8788_ALDO5_VOUT               0x3E
  44 #define LP8788_ALDO6_VOUT               0x3F
  45 #define LP8788_ALDO7_VOUT               0x40
  46 #define LP8788_ALDO8_VOUT               0x41
  47 #define LP8788_ALDO9_VOUT               0x42
  48 #define LP8788_ALDO10_VOUT              0x43
  49 #define LP8788_DLDO1_TIMESTEP           0x44
  50
  51 /* mask/shift bits */
  52 #define LP8788_EN_DLDO1_M               BIT(0)  /* Addr 0Dh ~ 0Fh */
  53 #define LP8788_EN_DLDO2_M               BIT(1)
  54 #define LP8788_EN_DLDO3_M               BIT(2)
  55 #define LP8788_EN_DLDO4_M               BIT(3)
  56 #define LP8788_EN_DLDO5_M               BIT(4)
  57 #define LP8788_EN_DLDO6_M               BIT(5)
  58 #define LP8788_EN_DLDO7_M               BIT(6)
  59 #define LP8788_EN_DLDO8_M               BIT(7)
  60 #define LP8788_EN_DLDO9_M               BIT(0)
  61 #define LP8788_EN_DLDO10_M              BIT(1)
  62 #define LP8788_EN_DLDO11_M              BIT(2)
  63 #define LP8788_EN_DLDO12_M              BIT(3)
  64 #define LP8788_EN_ALDO1_M               BIT(4)
  65 #define LP8788_EN_ALDO2_M               BIT(5)
  66 #define LP8788_EN_ALDO3_M               BIT(6)
  67 #define LP8788_EN_ALDO4_M               BIT(7)
  68 #define LP8788_EN_ALDO5_M               BIT(0)
  69 #define LP8788_EN_ALDO6_M               BIT(1)
  70 #define LP8788_EN_ALDO7_M               BIT(2)
  71 #define LP8788_EN_ALDO8_M               BIT(3)
  72 #define LP8788_EN_ALDO9_M               BIT(4)
  73 #define LP8788_EN_ALDO10_M              BIT(5)
  74 #define LP8788_EN_SEL_DLDO911_M         BIT(0)  /* Addr 10h */
  75 #define LP8788_EN_SEL_DLDO7_M           BIT(1)
  76 #define LP8788_EN_SEL_ALDO7_M           BIT(2)
  77 #define LP8788_EN_SEL_ALDO5_M           BIT(3)
  78 #define LP8788_EN_SEL_ALDO234_M         BIT(4)
  79 #define LP8788_EN_SEL_ALDO1_M           BIT(5)
  80 #define LP8788_VOUT_5BIT_M              0x1F    /* Addr 2Eh ~ 43h */
  81 #define LP8788_VOUT_4BIT_M              0x0F
  82 #define LP8788_VOUT_3BIT_M              0x07
  83 #define LP8788_VOUT_1BIT_M              0x01
  84 #define LP8788_STARTUP_TIME_M           0xF8    /* Addr 44h ~ 59h */
  85 #define LP8788_STARTUP_TIME_S           3
  86
  87 #define ENABLE_TIME_USEC                32
  88 #define ENABLE                          GPIOF_OUT_INIT_HIGH
  89 #define DISABLE                         GPIOF_OUT_INIT_LOW
  90
  91 enum lp8788_ldo_id {
  92         DLDO1,
  93         DLDO2,
  94         DLDO3,
  95         DLDO4,
  96         DLDO5,
  97         DLDO6,
  98         DLDO7,
  99         DLDO8,
 100         DLDO9,
 101         DLDO10,
 102         DLDO11,
 103         DLDO12,
 104         ALDO1,
 105         ALDO2,
 106         ALDO3,
 107         ALDO4,
 108         ALDO5,
 109         ALDO6,
 110         ALDO7,
 111         ALDO8,
 112         ALDO9,
 113         ALDO10,
 114 };
 115
 116 struct lp8788_ldo {
 117         struct lp8788 *lp;
 118         struct regulator_desc *desc;
 119         struct regulator_dev *regulator;
 120         struct lp8788_ldo_enable_pin *en_pin;
 121 };
 122
 123 /* DLDO 1, 2, 3, 9 voltage table */
 124 static const int lp8788_dldo1239_vtbl[] = {
 125         1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000,
 126         2600000, 2700000, 2800000, 2900000, 3000000, 2850000, 2850000, 2850000,
 127         2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000,
 128         2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000, 2850000,
 129 };
 130
 131 /* DLDO 4 voltage table */
 132 static const int lp8788_dldo4_vtbl[] = { 1800000, 3000000 };
 133
 134 /* DLDO 5, 7, 8 and ALDO 6 voltage table */
 135 static const int lp8788_dldo578_aldo6_vtbl[] = {
 136         1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000,
 137         2600000, 2700000, 2800000, 2900000, 3000000, 3000000, 3000000, 3000000,
 138 };
 139
 140 /* DLDO 6 voltage table */
 141 static const int lp8788_dldo6_vtbl[] = {
 142         3000000, 3100000, 3200000, 3300000, 3400000, 3500000, 3600000, 3600000,
 143 };
 144
 145 /* DLDO 10, 11 voltage table */
 146 static const int lp8788_dldo1011_vtbl[] = {
 147         1100000, 1150000, 1200000, 1250000, 1300000, 1350000, 1400000, 1450000,
 148         1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000, 1500000,
 149 };
 150
 151 /* ALDO 1 voltage table */
 152 static const int lp8788_aldo1_vtbl[] = { 1800000, 2850000 };
 153
 154 /* ALDO 7 voltage table */
 155 static const int lp8788_aldo7_vtbl[] = {
 156         1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1800000,
 157 };
 158
 159 static enum lp8788_ldo_id lp8788_dldo_id[] = {
 160         DLDO1,
 161         DLDO2,
 162         DLDO3,
 163         DLDO4,
 164         DLDO5,
 165         DLDO6,
 166         DLDO7,
 167         DLDO8,
 168         DLDO9,
 169         DLDO10,
 170         DLDO11,
 171         DLDO12,
 172 };
 173
 174 static enum lp8788_ldo_id lp8788_aldo_id[] = {
 175         ALDO1,
 176         ALDO2,
 177         ALDO3,
 178         ALDO4,
 179         ALDO5,
 180         ALDO6,
 181         ALDO7,
 182         ALDO8,
 183         ALDO9,
 184         ALDO10,
 185 };
 186
 187 static int lp8788_ldo_enable_time(struct regulator_dev *rdev)
 188 {
 189         struct lp8788_ldo *ldo = rdev_get_drvdata(rdev);
 190         enum lp8788_ldo_id id = rdev_get_id(rdev);
 191         u8 val, addr = LP8788_DLDO1_TIMESTEP + id;
 192
 193         if (lp8788_read_byte(ldo->lp, addr, &val))
 194                 return -EINVAL;
 195
 196         val = (val & LP8788_STARTUP_TIME_M) >> LP8788_STARTUP_TIME_S;
 197
 198         return ENABLE_TIME_USEC * val;
 199 }
 200
 201 static int lp8788_ldo_fixed_get_voltage(struct regulator_dev *rdev)
 202 {
 203         enum lp8788_ldo_id id = rdev_get_id(rdev);
 204
 205         switch (id) {
 206         case ALDO2 ... ALDO5:
 207                 return 2850000;
 208         case DLDO12:
 209         case ALDO8 ... ALDO9:
 210                 return 2500000;
 211         case ALDO10:
 212                 return 1100000;
 213         default:
 214                 return -EINVAL;
 215         }
 216 }
 217
 218 static struct regulator_ops lp8788_ldo_voltage_table_ops = {
 219         .list_voltage = regulator_list_voltage_table,
 220         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 221         .get_voltage_sel = regulator_get_voltage_sel_regmap,
 222         .enable = regulator_enable_regmap,
 223         .disable = regulator_disable_regmap,
 224         .is_enabled = regulator_is_enabled_regmap,
 225         .enable_time = lp8788_ldo_enable_time,
 226 };
 227
 228 static struct regulator_ops lp8788_ldo_voltage_fixed_ops = {
 229         .get_voltage = lp8788_ldo_fixed_get_voltage,
 230         .enable = regulator_enable_regmap,
 231         .disable = regulator_disable_regmap,
 232         .is_enabled = regulator_is_enabled_regmap,
 233         .enable_time = lp8788_ldo_enable_time,
 234 };
 235
 236 static struct regulator_desc lp8788_dldo_desc[] = {
 237         {
 238                 .name = "dldo1",
 239                 .id = DLDO1,
 240                 .ops = &lp8788_ldo_voltage_table_ops,
 241                 .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
 242                 .volt_table = lp8788_dldo1239_vtbl,
 243                 .type = REGULATOR_VOLTAGE,
 244                 .owner = THIS_MODULE,
 245                 .vsel_reg = LP8788_DLDO1_VOUT,
 246                 .vsel_mask = LP8788_VOUT_5BIT_M,
 247                 .enable_reg = LP8788_EN_LDO_A,
 248                 .enable_mask = LP8788_EN_DLDO1_M,
 249         },
 250         {
 251                 .name = "dldo2",
 252                 .id = DLDO2,
 253                 .ops = &lp8788_ldo_voltage_table_ops,
 254                 .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
 255                 .volt_table = lp8788_dldo1239_vtbl,
 256                 .type = REGULATOR_VOLTAGE,
 257                 .owner = THIS_MODULE,
 258                 .vsel_reg = LP8788_DLDO2_VOUT,
 259                 .vsel_mask = LP8788_VOUT_5BIT_M,
 260                 .enable_reg = LP8788_EN_LDO_A,
 261                 .enable_mask = LP8788_EN_DLDO2_M,
 262         },
 263         {
 264                 .name = "dldo3",
 265                 .id = DLDO3,
 266                 .ops = &lp8788_ldo_voltage_table_ops,
 267                 .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
 268                 .volt_table = lp8788_dldo1239_vtbl,
 269                 .type = REGULATOR_VOLTAGE,
 270                 .owner = THIS_MODULE,
 271                 .vsel_reg = LP8788_DLDO3_VOUT,
 272                 .vsel_mask = LP8788_VOUT_5BIT_M,
 273                 .enable_reg = LP8788_EN_LDO_A,
 274                 .enable_mask = LP8788_EN_DLDO3_M,
 275         },
 276         {
 277                 .name = "dldo4",
 278                 .id = DLDO4,
 279                 .ops = &lp8788_ldo_voltage_table_ops,
 280                 .n_voltages = ARRAY_SIZE(lp8788_dldo4_vtbl),
 281                 .volt_table = lp8788_dldo4_vtbl,
 282                 .type = REGULATOR_VOLTAGE,
 283                 .owner = THIS_MODULE,
 284                 .vsel_reg = LP8788_DLDO4_VOUT,
 285                 .vsel_mask = LP8788_VOUT_1BIT_M,
 286                 .enable_reg = LP8788_EN_LDO_A,
 287                 .enable_mask = LP8788_EN_DLDO4_M,
 288         },
 289         {
 290                 .name = "dldo5",
 291                 .id = DLDO5,
 292                 .ops = &lp8788_ldo_voltage_table_ops,
 293                 .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
 294                 .volt_table = lp8788_dldo578_aldo6_vtbl,
 295                 .type = REGULATOR_VOLTAGE,
 296                 .owner = THIS_MODULE,
 297                 .vsel_reg = LP8788_DLDO5_VOUT,
 298                 .vsel_mask = LP8788_VOUT_4BIT_M,
 299                 .enable_reg = LP8788_EN_LDO_A,
 300                 .enable_mask = LP8788_EN_DLDO5_M,
 301         },
 302         {
 303                 .name = "dldo6",
 304                 .id = DLDO6,
 305                 .ops = &lp8788_ldo_voltage_table_ops,
 306                 .n_voltages = ARRAY_SIZE(lp8788_dldo6_vtbl),
 307                 .volt_table = lp8788_dldo6_vtbl,
 308                 .type = REGULATOR_VOLTAGE,
 309                 .owner = THIS_MODULE,
 310                 .vsel_reg = LP8788_DLDO6_VOUT,
 311                 .vsel_mask = LP8788_VOUT_3BIT_M,
 312                 .enable_reg = LP8788_EN_LDO_A,
 313                 .enable_mask = LP8788_EN_DLDO6_M,
 314         },
 315         {
 316                 .name = "dldo7",
 317                 .id = DLDO7,
 318                 .ops = &lp8788_ldo_voltage_table_ops,
 319                 .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
 320                 .volt_table = lp8788_dldo578_aldo6_vtbl,
 321                 .type = REGULATOR_VOLTAGE,
 322                 .owner = THIS_MODULE,
 323                 .vsel_reg = LP8788_DLDO7_VOUT,
 324                 .vsel_mask = LP8788_VOUT_4BIT_M,
 325                 .enable_reg = LP8788_EN_LDO_A,
 326                 .enable_mask = LP8788_EN_DLDO7_M,
 327         },
 328         {
 329                 .name = "dldo8",
 330                 .id = DLDO8,
 331                 .ops = &lp8788_ldo_voltage_table_ops,
 332                 .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
 333                 .volt_table = lp8788_dldo578_aldo6_vtbl,
 334                 .type = REGULATOR_VOLTAGE,
 335                 .owner = THIS_MODULE,
 336                 .vsel_reg = LP8788_DLDO8_VOUT,
 337                 .vsel_mask = LP8788_VOUT_4BIT_M,
 338                 .enable_reg = LP8788_EN_LDO_A,
 339                 .enable_mask = LP8788_EN_DLDO8_M,
 340         },
 341         {
 342                 .name = "dldo9",
 343                 .id = DLDO9,
 344                 .ops = &lp8788_ldo_voltage_table_ops,
 345                 .n_voltages = ARRAY_SIZE(lp8788_dldo1239_vtbl),
 346                 .volt_table = lp8788_dldo1239_vtbl,
 347                 .type = REGULATOR_VOLTAGE,
 348                 .owner = THIS_MODULE,
 349                 .vsel_reg = LP8788_DLDO9_VOUT,
 350                 .vsel_mask = LP8788_VOUT_5BIT_M,
 351                 .enable_reg = LP8788_EN_LDO_B,
 352                 .enable_mask = LP8788_EN_DLDO9_M,
 353         },
 354         {
 355                 .name = "dldo10",
 356                 .id = DLDO10,
 357                 .ops = &lp8788_ldo_voltage_table_ops,
 358                 .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl),
 359                 .volt_table = lp8788_dldo1011_vtbl,
 360                 .type = REGULATOR_VOLTAGE,
 361                 .owner = THIS_MODULE,
 362                 .vsel_reg = LP8788_DLDO10_VOUT,
 363                 .vsel_mask = LP8788_VOUT_4BIT_M,
 364                 .enable_reg = LP8788_EN_LDO_B,
 365                 .enable_mask = LP8788_EN_DLDO10_M,
 366         },
 367         {
 368                 .name = "dldo11",
 369                 .id = DLDO11,
 370                 .ops = &lp8788_ldo_voltage_table_ops,
 371                 .n_voltages = ARRAY_SIZE(lp8788_dldo1011_vtbl),
 372                 .volt_table = lp8788_dldo1011_vtbl,
 373                 .type = REGULATOR_VOLTAGE,
 374                 .owner = THIS_MODULE,
 375                 .vsel_reg = LP8788_DLDO11_VOUT,
 376                 .vsel_mask = LP8788_VOUT_4BIT_M,
 377                 .enable_reg = LP8788_EN_LDO_B,
 378                 .enable_mask = LP8788_EN_DLDO11_M,
 379         },
 380         {
 381                 .name = "dldo12",
 382                 .id = DLDO12,
 383                 .ops = &lp8788_ldo_voltage_fixed_ops,
 384                 .n_voltages = 1,
 385                 .type = REGULATOR_VOLTAGE,
 386                 .owner = THIS_MODULE,
 387                 .enable_reg = LP8788_EN_LDO_B,
 388                 .enable_mask = LP8788_EN_DLDO12_M,
 389         },
 390 };
 391
 392 static struct regulator_desc lp8788_aldo_desc[] = {
 393         {
 394                 .name = "aldo1",
 395                 .id = ALDO1,
 396                 .ops = &lp8788_ldo_voltage_table_ops,
 397                 .n_voltages = ARRAY_SIZE(lp8788_aldo1_vtbl),
 398                 .volt_table = lp8788_aldo1_vtbl,
 399                 .type = REGULATOR_VOLTAGE,
 400                 .owner = THIS_MODULE,
 401                 .vsel_reg = LP8788_ALDO1_VOUT,
 402                 .vsel_mask = LP8788_VOUT_1BIT_M,
 403                 .enable_reg = LP8788_EN_LDO_B,
 404                 .enable_mask = LP8788_EN_ALDO1_M,
 405         },
 406         {
 407                 .name = "aldo2",
 408                 .id = ALDO2,
 409                 .ops = &lp8788_ldo_voltage_fixed_ops,
 410                 .n_voltages = 1,
 411                 .type = REGULATOR_VOLTAGE,
 412                 .owner = THIS_MODULE,
 413                 .enable_reg = LP8788_EN_LDO_B,
 414                 .enable_mask = LP8788_EN_ALDO2_M,
 415         },
 416         {
 417                 .name = "aldo3",
 418                 .id = ALDO3,
 419                 .ops = &lp8788_ldo_voltage_fixed_ops,
 420                 .n_voltages = 1,
 421                 .type = REGULATOR_VOLTAGE,
 422                 .owner = THIS_MODULE,
 423                 .enable_reg = LP8788_EN_LDO_B,
 424                 .enable_mask = LP8788_EN_ALDO3_M,
 425         },
 426         {
 427                 .name = "aldo4",
 428                 .id = ALDO4,
 429                 .ops = &lp8788_ldo_voltage_fixed_ops,
 430                 .n_voltages = 1,
 431                 .type = REGULATOR_VOLTAGE,
 432                 .owner = THIS_MODULE,
 433                 .enable_reg = LP8788_EN_LDO_B,
 434                 .enable_mask = LP8788_EN_ALDO4_M,
 435         },
 436         {
 437                 .name = "aldo5",
 438                 .id = ALDO5,
 439                 .ops = &lp8788_ldo_voltage_fixed_ops,
 440                 .n_voltages = 1,
 441                 .type = REGULATOR_VOLTAGE,
 442                 .owner = THIS_MODULE,
 443                 .enable_reg = LP8788_EN_LDO_C,
 444                 .enable_mask = LP8788_EN_ALDO5_M,
 445         },
 446         {
 447                 .name = "aldo6",
 448                 .id = ALDO6,
 449                 .ops = &lp8788_ldo_voltage_table_ops,
 450                 .n_voltages = ARRAY_SIZE(lp8788_dldo578_aldo6_vtbl),
 451                 .volt_table = lp8788_dldo578_aldo6_vtbl,
 452                 .type = REGULATOR_VOLTAGE,
 453                 .owner = THIS_MODULE,
 454                 .vsel_reg = LP8788_ALDO6_VOUT,
 455                 .vsel_mask = LP8788_VOUT_4BIT_M,
 456                 .enable_reg = LP8788_EN_LDO_C,
 457                 .enable_mask = LP8788_EN_ALDO6_M,
 458         },
 459         {
 460                 .name = "aldo7",
 461                 .id = ALDO7,
 462                 .ops = &lp8788_ldo_voltage_table_ops,
 463                 .n_voltages = ARRAY_SIZE(lp8788_aldo7_vtbl),
 464                 .volt_table = lp8788_aldo7_vtbl,
 465                 .type = REGULATOR_VOLTAGE,
 466                 .owner = THIS_MODULE,
 467                 .vsel_reg = LP8788_ALDO7_VOUT,
 468                 .vsel_mask = LP8788_VOUT_3BIT_M,
 469                 .enable_reg = LP8788_EN_LDO_C,
 470                 .enable_mask = LP8788_EN_ALDO7_M,
 471         },
 472         {
 473                 .name = "aldo8",
 474                 .id = ALDO8,
 475                 .ops = &lp8788_ldo_voltage_fixed_ops,
 476                 .n_voltages = 1,
 477                 .type = REGULATOR_VOLTAGE,
 478                 .owner = THIS_MODULE,
 479                 .enable_reg = LP8788_EN_LDO_C,
 480                 .enable_mask = LP8788_EN_ALDO8_M,
 481         },
 482         {
 483                 .name = "aldo9",
 484                 .id = ALDO9,
 485                 .ops = &lp8788_ldo_voltage_fixed_ops,
 486                 .n_voltages = 1,
 487                 .type = REGULATOR_VOLTAGE,
 488                 .owner = THIS_MODULE,
 489                 .enable_reg = LP8788_EN_LDO_C,
 490                 .enable_mask = LP8788_EN_ALDO9_M,
 491         },
 492         {
 493                 .name = "aldo10",
 494                 .id = ALDO10,
 495                 .ops = &lp8788_ldo_voltage_fixed_ops,
 496                 .n_voltages = 1,
 497                 .type = REGULATOR_VOLTAGE,
 498                 .owner = THIS_MODULE,
 499                 .enable_reg = LP8788_EN_LDO_C,
 500                 .enable_mask = LP8788_EN_ALDO10_M,
 501         },
 502 };
 503
 504 static int lp8788_config_ldo_enable_mode(struct platform_device *pdev,
 505                                         struct lp8788_ldo *ldo,
 506                                         enum lp8788_ldo_id id)
 507 {
 508         struct lp8788 *lp = ldo->lp;
 509         struct lp8788_platform_data *pdata = lp->pdata;
 510         enum lp8788_ext_ldo_en_id enable_id;
 511         u8 en_mask[] = {
 512                 [EN_ALDO1]   = LP8788_EN_SEL_ALDO1_M,
 513                 [EN_ALDO234] = LP8788_EN_SEL_ALDO234_M,
 514                 [EN_ALDO5]   = LP8788_EN_SEL_ALDO5_M,
 515                 [EN_ALDO7]   = LP8788_EN_SEL_ALDO7_M,
 516                 [EN_DLDO7]   = LP8788_EN_SEL_DLDO7_M,
 517                 [EN_DLDO911] = LP8788_EN_SEL_DLDO911_M,
 518         };
 519
 520         switch (id) {
 521         case DLDO7:
 522                 enable_id = EN_DLDO7;
 523                 break;
 524         case DLDO9:
 525         case DLDO11:
 526                 enable_id = EN_DLDO911;
 527                 break;
 528         case ALDO1:
 529                 enable_id = EN_ALDO1;
 530                 break;
 531         case ALDO2 ... ALDO4:
 532                 enable_id = EN_ALDO234;
 533                 break;
 534         case ALDO5:
 535                 enable_id = EN_ALDO5;
 536                 break;
 537         case ALDO7:
 538                 enable_id = EN_ALDO7;
 539                 break;
 540         default:
 541                 return 0;
 542         }
 543
 544         /* if no platform data for ldo pin, then set default enable mode */
 545         if (!pdata || !pdata->ldo_pin || !pdata->ldo_pin[enable_id])
 546                 goto set_default_ldo_enable_mode;
 547
 548         ldo->en_pin = pdata->ldo_pin[enable_id];
 549         return 0;
 550
 551 set_default_ldo_enable_mode:
 552         return lp8788_update_bits(lp, LP8788_EN_SEL, en_mask[enable_id], 0);
 553 }
 554
 555 static int lp8788_dldo_probe(struct platform_device *pdev)
 556 {
 557         struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);
 558         int id = pdev->id;
 559         struct lp8788_ldo *ldo;
 560         struct regulator_config cfg = { };
 561         struct regulator_dev *rdev;
 562         int ret;
 563
 564         ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL);
 565         if (!ldo)
 566                 return -ENOMEM;
 567
 568         ldo->lp = lp;
 569         ret = lp8788_config_ldo_enable_mode(pdev, ldo, lp8788_dldo_id[id]);
 570         if (ret)
 571                 return ret;
 572
 573         if (ldo->en_pin) {
 574                 cfg.ena_gpio = ldo->en_pin->gpio;
 575                 cfg.ena_gpio_flags = ldo->en_pin->init_state;
 576         }
 577
 578         cfg.dev = pdev->dev.parent;
 579         cfg.init_data = lp->pdata ? lp->pdata->dldo_data[id] : NULL;
 580         cfg.driver_data = ldo;
 581         cfg.regmap = lp->regmap;
 582
 583         rdev = regulator_register(&lp8788_dldo_desc[id], &cfg);
 584         if (IS_ERR(rdev)) {
 585                 ret = PTR_ERR(rdev);
 586                 dev_err(&pdev->dev, "DLDO%d regulator register err = %d\n",
 587                                 id + 1, ret);
 588                 return ret;
 589         }
 590
 591         ldo->regulator = rdev;
 592         platform_set_drvdata(pdev, ldo);
 593
 594         return 0;
 595 }
 596
 597 static int lp8788_dldo_remove(struct platform_device *pdev)
 598 {
 599         struct lp8788_ldo *ldo = platform_get_drvdata(pdev);
 600
 601         platform_set_drvdata(pdev, NULL);
 602         regulator_unregister(ldo->regulator);
 603
 604         return 0;
 605 }
 606
 607 static struct platform_driver lp8788_dldo_driver = {
 608         .probe = lp8788_dldo_probe,
 609         .remove = lp8788_dldo_remove,
 610         .driver = {
 611                 .name = LP8788_DEV_DLDO,
 612                 .owner = THIS_MODULE,
 613         },
 614 };
 615
 616 static int lp8788_aldo_probe(struct platform_device *pdev)
 617 {
 618         struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);
 619         int id = pdev->id;
 620         struct lp8788_ldo *ldo;
 621         struct regulator_config cfg = { };
 622         struct regulator_dev *rdev;
 623         int ret;
 624
 625         ldo = devm_kzalloc(&pdev->dev, sizeof(struct lp8788_ldo), GFP_KERNEL);
 626         if (!ldo)
 627                 return -ENOMEM;
 628
 629         ldo->lp = lp;
 630         ret = lp8788_config_ldo_enable_mode(pdev, ldo, lp8788_aldo_id[id]);
 631         if (ret)
 632                 return ret;
 633
 634         if (ldo->en_pin) {
 635                 cfg.ena_gpio = ldo->en_pin->gpio;
 636                 cfg.ena_gpio_flags = ldo->en_pin->init_state;
 637         }
 638
 639         cfg.dev = pdev->dev.parent;
 640         cfg.init_data = lp->pdata ? lp->pdata->aldo_data[id] : NULL;
 641         cfg.driver_data = ldo;
 642         cfg.regmap = lp->regmap;
 643
 644         rdev = regulator_register(&lp8788_aldo_desc[id], &cfg);
 645         if (IS_ERR(rdev)) {
 646                 ret = PTR_ERR(rdev);
 647                 dev_err(&pdev->dev, "ALDO%d regulator register err = %d\n",
 648                                 id + 1, ret);
 649                 return ret;
 650         }
 651
 652         ldo->regulator = rdev;
 653         platform_set_drvdata(pdev, ldo);
 654
 655         return 0;
 656 }
 657
 658 static int lp8788_aldo_remove(struct platform_device *pdev)
 659 {
 660         struct lp8788_ldo *ldo = platform_get_drvdata(pdev);
 661
 662         platform_set_drvdata(pdev, NULL);
 663         regulator_unregister(ldo->regulator);
 664
 665         return 0;
 666 }
 667
 668 static struct platform_driver lp8788_aldo_driver = {
 669         .probe = lp8788_aldo_probe,
 670         .remove = lp8788_aldo_remove,
 671         .driver = {
 672                 .name = LP8788_DEV_ALDO,
 673                 .owner = THIS_MODULE,
 674         },
 675 };
 676
 677 static int __init lp8788_ldo_init(void)
 678 {
 679         int ret;
 680
 681         ret = platform_driver_register(&lp8788_dldo_driver);
 682         if (ret)
 683                 return ret;
 684
 685         return platform_driver_register(&lp8788_aldo_driver);
 686 }
 687 subsys_initcall(lp8788_ldo_init);
 688
 689 static void __exit lp8788_ldo_exit(void)
 690 {
 691         platform_driver_unregister(&lp8788_aldo_driver);
 692         platform_driver_unregister(&lp8788_dldo_driver);
 693 }
 694 module_exit(lp8788_ldo_exit);
 695
 696 MODULE_DESCRIPTION("TI LP8788 LDO Driver");
 697 MODULE_AUTHOR("Milo Kim");
 698 MODULE_LICENSE("GPL");
 699 MODULE_ALIAS("platform:lp8788-dldo");
 700 MODULE_ALIAS("platform:lp8788-aldo");