drivers/regulator/tps65910-regulator.c

   1 /*
   2  * tps65910.c  --  TI tps65910
   3  *
   4  * Copyright 2010 Texas Instruments Inc.
   5  *
   6  * Author: Graeme Gregory <gg@slimlogic.co.uk>
   7  * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify it
  10  *  under  the terms of the GNU General  Public License as published by the
  11  *  Free Software Foundation;  either version 2 of the License, or (at your
  12  *  option) any later version.
  13  *
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/module.h>
  18 #include <linux/init.h>
  19 #include <linux/err.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/regulator/driver.h>
  22 #include <linux/regulator/machine.h>
  23 #include <linux/slab.h>
  24 #include <linux/gpio.h>
  25 #include <linux/mfd/tps65910.h>
  26 #include <linux/regulator/of_regulator.h>
  27
  28 #define TPS65910_SUPPLY_STATE_ENABLED   0x1
  29 #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 |       \
  30                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 |          \
  31                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 |          \
  32                         TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
  33
  34 /* supported VIO voltages in microvolts */
  35 static const unsigned int VIO_VSEL_table[] = {
  36         1500000, 1800000, 2500000, 3300000,
  37 };
  38
  39 /* VSEL tables for TPS65910 specific LDOs and dcdc's */
  40
  41 /* supported VRTC voltages in microvolts */
  42 static const unsigned int VRTC_VSEL_table[] = {
  43         1800000,
  44 };
  45
  46 /* supported VDD3 voltages in microvolts */
  47 static const unsigned int VDD3_VSEL_table[] = {
  48         5000000,
  49 };
  50
  51 /* supported VDIG1 voltages in microvolts */
  52 static const unsigned int VDIG1_VSEL_table[] = {
  53         1200000, 1500000, 1800000, 2700000,
  54 };
  55
  56 /* supported VDIG2 voltages in microvolts */
  57 static const unsigned int VDIG2_VSEL_table[] = {
  58         1000000, 1100000, 1200000, 1800000,
  59 };
  60
  61 /* supported VPLL voltages in microvolts */
  62 static const unsigned int VPLL_VSEL_table[] = {
  63         1000000, 1100000, 1800000, 2500000,
  64 };
  65
  66 /* supported VDAC voltages in microvolts */
  67 static const unsigned int VDAC_VSEL_table[] = {
  68         1800000, 2600000, 2800000, 2850000,
  69 };
  70
  71 /* supported VAUX1 voltages in microvolts */
  72 static const unsigned int VAUX1_VSEL_table[] = {
  73         1800000, 2500000, 2800000, 2850000,
  74 };
  75
  76 /* supported VAUX2 voltages in microvolts */
  77 static const unsigned int VAUX2_VSEL_table[] = {
  78         1800000, 2800000, 2900000, 3300000,
  79 };
  80
  81 /* supported VAUX33 voltages in microvolts */
  82 static const unsigned int VAUX33_VSEL_table[] = {
  83         1800000, 2000000, 2800000, 3300000,
  84 };
  85
  86 /* supported VMMC voltages in microvolts */
  87 static const unsigned int VMMC_VSEL_table[] = {
  88         1800000, 2800000, 3000000, 3300000,
  89 };
  90
  91 /* supported BBCH voltages in microvolts */
  92 static const unsigned int VBB_VSEL_table[] = {
  93         3000000, 2520000, 3150000, 5000000,
  94 };
  95
  96 struct tps_info {
  97         const char *name;
  98         const char *vin_name;
  99         u8 n_voltages;
 100         const unsigned int *voltage_table;
 101         int enable_time_us;
 102 };
 103
 104 static struct tps_info tps65910_regs[] = {
 105         {
 106                 .name = "vrtc",
 107                 .vin_name = "vcc7",
 108                 .n_voltages = ARRAY_SIZE(VRTC_VSEL_table),
 109                 .voltage_table = VRTC_VSEL_table,
 110                 .enable_time_us = 2200,
 111         },
 112         {
 113                 .name = "vio",
 114                 .vin_name = "vccio",
 115                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 116                 .voltage_table = VIO_VSEL_table,
 117                 .enable_time_us = 350,
 118         },
 119         {
 120                 .name = "vdd1",
 121                 .vin_name = "vcc1",
 122                 .enable_time_us = 350,
 123         },
 124         {
 125                 .name = "vdd2",
 126                 .vin_name = "vcc2",
 127                 .enable_time_us = 350,
 128         },
 129         {
 130                 .name = "vdd3",
 131                 .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
 132                 .voltage_table = VDD3_VSEL_table,
 133                 .enable_time_us = 200,
 134         },
 135         {
 136                 .name = "vdig1",
 137                 .vin_name = "vcc6",
 138                 .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
 139                 .voltage_table = VDIG1_VSEL_table,
 140                 .enable_time_us = 100,
 141         },
 142         {
 143                 .name = "vdig2",
 144                 .vin_name = "vcc6",
 145                 .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
 146                 .voltage_table = VDIG2_VSEL_table,
 147                 .enable_time_us = 100,
 148         },
 149         {
 150                 .name = "vpll",
 151                 .vin_name = "vcc5",
 152                 .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
 153                 .voltage_table = VPLL_VSEL_table,
 154                 .enable_time_us = 100,
 155         },
 156         {
 157                 .name = "vdac",
 158                 .vin_name = "vcc5",
 159                 .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
 160                 .voltage_table = VDAC_VSEL_table,
 161                 .enable_time_us = 100,
 162         },
 163         {
 164                 .name = "vaux1",
 165                 .vin_name = "vcc4",
 166                 .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
 167                 .voltage_table = VAUX1_VSEL_table,
 168                 .enable_time_us = 100,
 169         },
 170         {
 171                 .name = "vaux2",
 172                 .vin_name = "vcc4",
 173                 .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
 174                 .voltage_table = VAUX2_VSEL_table,
 175                 .enable_time_us = 100,
 176         },
 177         {
 178                 .name = "vaux33",
 179                 .vin_name = "vcc3",
 180                 .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
 181                 .voltage_table = VAUX33_VSEL_table,
 182                 .enable_time_us = 100,
 183         },
 184         {
 185                 .name = "vmmc",
 186                 .vin_name = "vcc3",
 187                 .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
 188                 .voltage_table = VMMC_VSEL_table,
 189                 .enable_time_us = 100,
 190         },
 191         {
 192                 .name = "vbb",
 193                 .vin_name = "vcc7",
 194                 .n_voltages = ARRAY_SIZE(VBB_VSEL_table),
 195                 .voltage_table = VBB_VSEL_table,
 196         },
 197 };
 198
 199 static struct tps_info tps65911_regs[] = {
 200         {
 201                 .name = "vrtc",
 202                 .vin_name = "vcc7",
 203                 .enable_time_us = 2200,
 204         },
 205         {
 206                 .name = "vio",
 207                 .vin_name = "vccio",
 208                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 209                 .voltage_table = VIO_VSEL_table,
 210                 .enable_time_us = 350,
 211         },
 212         {
 213                 .name = "vdd1",
 214                 .vin_name = "vcc1",
 215                 .n_voltages = 0x4C,
 216                 .enable_time_us = 350,
 217         },
 218         {
 219                 .name = "vdd2",
 220                 .vin_name = "vcc2",
 221                 .n_voltages = 0x4C,
 222                 .enable_time_us = 350,
 223         },
 224         {
 225                 .name = "vddctrl",
 226                 .n_voltages = 0x44,
 227                 .enable_time_us = 900,
 228         },
 229         {
 230                 .name = "ldo1",
 231                 .vin_name = "vcc6",
 232                 .n_voltages = 0x33,
 233                 .enable_time_us = 420,
 234         },
 235         {
 236                 .name = "ldo2",
 237                 .vin_name = "vcc6",
 238                 .n_voltages = 0x33,
 239                 .enable_time_us = 420,
 240         },
 241         {
 242                 .name = "ldo3",
 243                 .vin_name = "vcc5",
 244                 .n_voltages = 0x1A,
 245                 .enable_time_us = 230,
 246         },
 247         {
 248                 .name = "ldo4",
 249                 .vin_name = "vcc5",
 250                 .n_voltages = 0x33,
 251                 .enable_time_us = 230,
 252         },
 253         {
 254                 .name = "ldo5",
 255                 .vin_name = "vcc4",
 256                 .n_voltages = 0x1A,
 257                 .enable_time_us = 230,
 258         },
 259         {
 260                 .name = "ldo6",
 261                 .vin_name = "vcc3",
 262                 .n_voltages = 0x1A,
 263                 .enable_time_us = 230,
 264         },
 265         {
 266                 .name = "ldo7",
 267                 .vin_name = "vcc3",
 268                 .n_voltages = 0x1A,
 269                 .enable_time_us = 230,
 270         },
 271         {
 272                 .name = "ldo8",
 273                 .vin_name = "vcc3",
 274                 .n_voltages = 0x1A,
 275                 .enable_time_us = 230,
 276         },
 277 };
 278
 279 #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
 280 static unsigned int tps65910_ext_sleep_control[] = {
 281         0,
 282         EXT_CONTROL_REG_BITS(VIO,    1, 0),
 283         EXT_CONTROL_REG_BITS(VDD1,   1, 1),
 284         EXT_CONTROL_REG_BITS(VDD2,   1, 2),
 285         EXT_CONTROL_REG_BITS(VDD3,   1, 3),
 286         EXT_CONTROL_REG_BITS(VDIG1,  0, 1),
 287         EXT_CONTROL_REG_BITS(VDIG2,  0, 2),
 288         EXT_CONTROL_REG_BITS(VPLL,   0, 6),
 289         EXT_CONTROL_REG_BITS(VDAC,   0, 7),
 290         EXT_CONTROL_REG_BITS(VAUX1,  0, 3),
 291         EXT_CONTROL_REG_BITS(VAUX2,  0, 4),
 292         EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
 293         EXT_CONTROL_REG_BITS(VMMC,   0, 0),
 294 };
 295
 296 static unsigned int tps65911_ext_sleep_control[] = {
 297         0,
 298         EXT_CONTROL_REG_BITS(VIO,     1, 0),
 299         EXT_CONTROL_REG_BITS(VDD1,    1, 1),
 300         EXT_CONTROL_REG_BITS(VDD2,    1, 2),
 301         EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
 302         EXT_CONTROL_REG_BITS(LDO1,    0, 1),
 303         EXT_CONTROL_REG_BITS(LDO2,    0, 2),
 304         EXT_CONTROL_REG_BITS(LDO3,    0, 7),
 305         EXT_CONTROL_REG_BITS(LDO4,    0, 6),
 306         EXT_CONTROL_REG_BITS(LDO5,    0, 3),
 307         EXT_CONTROL_REG_BITS(LDO6,    0, 0),
 308         EXT_CONTROL_REG_BITS(LDO7,    0, 5),
 309         EXT_CONTROL_REG_BITS(LDO8,    0, 4),
 310 };
 311
 312 struct tps65910_reg {
 313         struct regulator_desc *desc;
 314         struct tps65910 *mfd;
 315         struct regulator_dev **rdev;
 316         struct tps_info **info;
 317         int num_regulators;
 318         int mode;
 319         int  (*get_ctrl_reg)(int);
 320         unsigned int *ext_sleep_control;
 321         unsigned int board_ext_control[TPS65910_NUM_REGS];
 322 };
 323
 324 static int tps65910_get_ctrl_register(int id)
 325 {
 326         switch (id) {
 327         case TPS65910_REG_VRTC:
 328                 return TPS65910_VRTC;
 329         case TPS65910_REG_VIO:
 330                 return TPS65910_VIO;
 331         case TPS65910_REG_VDD1:
 332                 return TPS65910_VDD1;
 333         case TPS65910_REG_VDD2:
 334                 return TPS65910_VDD2;
 335         case TPS65910_REG_VDD3:
 336                 return TPS65910_VDD3;
 337         case TPS65910_REG_VDIG1:
 338                 return TPS65910_VDIG1;
 339         case TPS65910_REG_VDIG2:
 340                 return TPS65910_VDIG2;
 341         case TPS65910_REG_VPLL:
 342                 return TPS65910_VPLL;
 343         case TPS65910_REG_VDAC:
 344                 return TPS65910_VDAC;
 345         case TPS65910_REG_VAUX1:
 346                 return TPS65910_VAUX1;
 347         case TPS65910_REG_VAUX2:
 348                 return TPS65910_VAUX2;
 349         case TPS65910_REG_VAUX33:
 350                 return TPS65910_VAUX33;
 351         case TPS65910_REG_VMMC:
 352                 return TPS65910_VMMC;
 353         case TPS65910_REG_VBB:
 354                 return TPS65910_BBCH;
 355         default:
 356                 return -EINVAL;
 357         }
 358 }
 359
 360 static int tps65911_get_ctrl_register(int id)
 361 {
 362         switch (id) {
 363         case TPS65910_REG_VRTC:
 364                 return TPS65910_VRTC;
 365         case TPS65910_REG_VIO:
 366                 return TPS65910_VIO;
 367         case TPS65910_REG_VDD1:
 368                 return TPS65910_VDD1;
 369         case TPS65910_REG_VDD2:
 370                 return TPS65910_VDD2;
 371         case TPS65911_REG_VDDCTRL:
 372                 return TPS65911_VDDCTRL;
 373         case TPS65911_REG_LDO1:
 374                 return TPS65911_LDO1;
 375         case TPS65911_REG_LDO2:
 376                 return TPS65911_LDO2;
 377         case TPS65911_REG_LDO3:
 378                 return TPS65911_LDO3;
 379         case TPS65911_REG_LDO4:
 380                 return TPS65911_LDO4;
 381         case TPS65911_REG_LDO5:
 382                 return TPS65911_LDO5;
 383         case TPS65911_REG_LDO6:
 384                 return TPS65911_LDO6;
 385         case TPS65911_REG_LDO7:
 386                 return TPS65911_LDO7;
 387         case TPS65911_REG_LDO8:
 388                 return TPS65911_LDO8;
 389         default:
 390                 return -EINVAL;
 391         }
 392 }
 393
 394 static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
 395 {
 396         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 397         struct tps65910 *mfd = pmic->mfd;
 398         int reg, value, id = rdev_get_id(dev);
 399
 400         reg = pmic->get_ctrl_reg(id);
 401         if (reg < 0)
 402                 return reg;
 403
 404         switch (mode) {
 405         case REGULATOR_MODE_NORMAL:
 406                 return tps65910_reg_update_bits(pmic->mfd, reg,
 407                                                 LDO_ST_MODE_BIT | LDO_ST_ON_BIT,
 408                                                 LDO_ST_ON_BIT);
 409         case REGULATOR_MODE_IDLE:
 410                 value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
 411                 return tps65910_reg_set_bits(mfd, reg, value);
 412         case REGULATOR_MODE_STANDBY:
 413                 return tps65910_reg_clear_bits(mfd, reg, LDO_ST_ON_BIT);
 414         }
 415
 416         return -EINVAL;
 417 }
 418
 419 static unsigned int tps65910_get_mode(struct regulator_dev *dev)
 420 {
 421         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 422         int ret, reg, value, id = rdev_get_id(dev);
 423
 424         reg = pmic->get_ctrl_reg(id);
 425         if (reg < 0)
 426                 return reg;
 427
 428         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 429         if (ret < 0)
 430                 return ret;
 431
 432         if (!(value & LDO_ST_ON_BIT))
 433                 return REGULATOR_MODE_STANDBY;
 434         else if (value & LDO_ST_MODE_BIT)
 435                 return REGULATOR_MODE_IDLE;
 436         else
 437                 return REGULATOR_MODE_NORMAL;
 438 }
 439
 440 static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
 441 {
 442         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 443         int ret, id = rdev_get_id(dev);
 444         int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
 445
 446         switch (id) {
 447         case TPS65910_REG_VDD1:
 448                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_OP, &opvsel);
 449                 if (ret < 0)
 450                         return ret;
 451                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1, &mult);
 452                 if (ret < 0)
 453                         return ret;
 454                 mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
 455                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_SR, &srvsel);
 456                 if (ret < 0)
 457                         return ret;
 458                 sr = opvsel & VDD1_OP_CMD_MASK;
 459                 opvsel &= VDD1_OP_SEL_MASK;
 460                 srvsel &= VDD1_SR_SEL_MASK;
 461                 vselmax = 75;
 462                 break;
 463         case TPS65910_REG_VDD2:
 464                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_OP, &opvsel);
 465                 if (ret < 0)
 466                         return ret;
 467                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2, &mult);
 468                 if (ret < 0)
 469                         return ret;
 470                 mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
 471                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_SR, &srvsel);
 472                 if (ret < 0)
 473                         return ret;
 474                 sr = opvsel & VDD2_OP_CMD_MASK;
 475                 opvsel &= VDD2_OP_SEL_MASK;
 476                 srvsel &= VDD2_SR_SEL_MASK;
 477                 vselmax = 75;
 478                 break;
 479         case TPS65911_REG_VDDCTRL:
 480                 ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_OP,
 481                                         &opvsel);
 482                 if (ret < 0)
 483                         return ret;
 484                 ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_SR,
 485                                         &srvsel);
 486                 if (ret < 0)
 487                         return ret;
 488                 sr = opvsel & VDDCTRL_OP_CMD_MASK;
 489                 opvsel &= VDDCTRL_OP_SEL_MASK;
 490                 srvsel &= VDDCTRL_SR_SEL_MASK;
 491                 vselmax = 64;
 492                 break;
 493         }
 494
 495         /* multiplier 0 == 1 but 2,3 normal */
 496         if (!mult)
 497                 mult = 1;
 498
 499         if (sr) {
 500                 /* normalise to valid range */
 501                 if (srvsel < 3)
 502                         srvsel = 3;
 503                 if (srvsel > vselmax)
 504                         srvsel = vselmax;
 505                 return srvsel - 3;
 506         } else {
 507
 508                 /* normalise to valid range*/
 509                 if (opvsel < 3)
 510                         opvsel = 3;
 511                 if (opvsel > vselmax)
 512                         opvsel = vselmax;
 513                 return opvsel - 3;
 514         }
 515         return -EINVAL;
 516 }
 517
 518 static int tps65910_get_voltage_sel(struct regulator_dev *dev)
 519 {
 520         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 521         int ret, reg, value, id = rdev_get_id(dev);
 522
 523         reg = pmic->get_ctrl_reg(id);
 524         if (reg < 0)
 525                 return reg;
 526
 527         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 528         if (ret < 0)
 529                 return ret;
 530
 531         switch (id) {
 532         case TPS65910_REG_VIO:
 533         case TPS65910_REG_VDIG1:
 534         case TPS65910_REG_VDIG2:
 535         case TPS65910_REG_VPLL:
 536         case TPS65910_REG_VDAC:
 537         case TPS65910_REG_VAUX1:
 538         case TPS65910_REG_VAUX2:
 539         case TPS65910_REG_VAUX33:
 540         case TPS65910_REG_VMMC:
 541                 value &= LDO_SEL_MASK;
 542                 value >>= LDO_SEL_SHIFT;
 543                 break;
 544         case TPS65910_REG_VBB:
 545                 value &= BBCH_BBSEL_MASK;
 546                 value >>= BBCH_BBSEL_SHIFT;
 547                 break;
 548         default:
 549                 return -EINVAL;
 550         }
 551
 552         return value;
 553 }
 554
 555 static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
 556 {
 557         return dev->desc->volt_table[0];
 558 }
 559
 560 static int tps65911_get_voltage_sel(struct regulator_dev *dev)
 561 {
 562         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 563         int ret, id = rdev_get_id(dev);
 564         unsigned int value, reg;
 565
 566         reg = pmic->get_ctrl_reg(id);
 567
 568         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 569         if (ret < 0)
 570                 return ret;
 571
 572         switch (id) {
 573         case TPS65911_REG_LDO1:
 574         case TPS65911_REG_LDO2:
 575         case TPS65911_REG_LDO4:
 576                 value &= LDO1_SEL_MASK;
 577                 value >>= LDO_SEL_SHIFT;
 578                 break;
 579         case TPS65911_REG_LDO3:
 580         case TPS65911_REG_LDO5:
 581         case TPS65911_REG_LDO6:
 582         case TPS65911_REG_LDO7:
 583         case TPS65911_REG_LDO8:
 584                 value &= LDO3_SEL_MASK;
 585                 value >>= LDO_SEL_SHIFT;
 586                 break;
 587         case TPS65910_REG_VIO:
 588                 value &= LDO_SEL_MASK;
 589                 value >>= LDO_SEL_SHIFT;
 590                 break;
 591         default:
 592                 return -EINVAL;
 593         }
 594
 595         return value;
 596 }
 597
 598 static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
 599                                          unsigned selector)
 600 {
 601         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 602         int id = rdev_get_id(dev), vsel;
 603         int dcdc_mult = 0;
 604
 605         switch (id) {
 606         case TPS65910_REG_VDD1:
 607                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 608                 if (dcdc_mult == 1)
 609                         dcdc_mult--;
 610                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
 611
 612                 tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD1,
 613                                          VDD1_VGAIN_SEL_MASK,
 614                                          dcdc_mult << VDD1_VGAIN_SEL_SHIFT);
 615                 tps65910_reg_write(pmic->mfd, TPS65910_VDD1_OP, vsel);
 616                 break;
 617         case TPS65910_REG_VDD2:
 618                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 619                 if (dcdc_mult == 1)
 620                         dcdc_mult--;
 621                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
 622
 623                 tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD2,
 624                                          VDD1_VGAIN_SEL_MASK,
 625                                          dcdc_mult << VDD2_VGAIN_SEL_SHIFT);
 626                 tps65910_reg_write(pmic->mfd, TPS65910_VDD2_OP, vsel);
 627                 break;
 628         case TPS65911_REG_VDDCTRL:
 629                 vsel = selector + 3;
 630                 tps65910_reg_write(pmic->mfd, TPS65911_VDDCTRL_OP, vsel);
 631         }
 632
 633         return 0;
 634 }
 635
 636 static int tps65910_set_voltage_sel(struct regulator_dev *dev,
 637                                     unsigned selector)
 638 {
 639         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 640         int reg, id = rdev_get_id(dev);
 641
 642         reg = pmic->get_ctrl_reg(id);
 643         if (reg < 0)
 644                 return reg;
 645
 646         switch (id) {
 647         case TPS65910_REG_VIO:
 648         case TPS65910_REG_VDIG1:
 649         case TPS65910_REG_VDIG2:
 650         case TPS65910_REG_VPLL:
 651         case TPS65910_REG_VDAC:
 652         case TPS65910_REG_VAUX1:
 653         case TPS65910_REG_VAUX2:
 654         case TPS65910_REG_VAUX33:
 655         case TPS65910_REG_VMMC:
 656                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
 657                                                 selector << LDO_SEL_SHIFT);
 658         case TPS65910_REG_VBB:
 659                 return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
 660                                                 selector << BBCH_BBSEL_SHIFT);
 661         }
 662
 663         return -EINVAL;
 664 }
 665
 666 static int tps65911_set_voltage_sel(struct regulator_dev *dev,
 667                                     unsigned selector)
 668 {
 669         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 670         int reg, id = rdev_get_id(dev);
 671
 672         reg = pmic->get_ctrl_reg(id);
 673         if (reg < 0)
 674                 return reg;
 675
 676         switch (id) {
 677         case TPS65911_REG_LDO1:
 678         case TPS65911_REG_LDO2:
 679         case TPS65911_REG_LDO4:
 680                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO1_SEL_MASK,
 681                                                 selector << LDO_SEL_SHIFT);
 682         case TPS65911_REG_LDO3:
 683         case TPS65911_REG_LDO5:
 684         case TPS65911_REG_LDO6:
 685         case TPS65911_REG_LDO7:
 686         case TPS65911_REG_LDO8:
 687                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO3_SEL_MASK,
 688                                                 selector << LDO_SEL_SHIFT);
 689         case TPS65910_REG_VIO:
 690                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
 691                                                 selector << LDO_SEL_SHIFT);
 692         case TPS65910_REG_VBB:
 693                 return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
 694                                                 selector << BBCH_BBSEL_SHIFT);
 695         }
 696
 697         return -EINVAL;
 698 }
 699
 700
 701 static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
 702                                         unsigned selector)
 703 {
 704         int volt, mult = 1, id = rdev_get_id(dev);
 705
 706         switch (id) {
 707         case TPS65910_REG_VDD1:
 708         case TPS65910_REG_VDD2:
 709                 mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 710                 volt = VDD1_2_MIN_VOLT +
 711                         (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
 712                 break;
 713         case TPS65911_REG_VDDCTRL:
 714                 volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
 715                 break;
 716         default:
 717                 BUG();
 718                 return -EINVAL;
 719         }
 720
 721         return  volt * 100 * mult;
 722 }
 723
 724 static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
 725 {
 726         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 727         int step_mv = 0, id = rdev_get_id(dev);
 728
 729         switch (id) {
 730         case TPS65911_REG_LDO1:
 731         case TPS65911_REG_LDO2:
 732         case TPS65911_REG_LDO4:
 733                 /* The first 5 values of the selector correspond to 1V */
 734                 if (selector < 5)
 735                         selector = 0;
 736                 else
 737                         selector -= 4;
 738
 739                 step_mv = 50;
 740                 break;
 741         case TPS65911_REG_LDO3:
 742         case TPS65911_REG_LDO5:
 743         case TPS65911_REG_LDO6:
 744         case TPS65911_REG_LDO7:
 745         case TPS65911_REG_LDO8:
 746                 /* The first 3 values of the selector correspond to 1V */
 747                 if (selector < 3)
 748                         selector = 0;
 749                 else
 750                         selector -= 2;
 751
 752                 step_mv = 100;
 753                 break;
 754         case TPS65910_REG_VIO:
 755                 return pmic->info[id]->voltage_table[selector];
 756         default:
 757                 return -EINVAL;
 758         }
 759
 760         return (LDO_MIN_VOLT + selector * step_mv) * 1000;
 761 }
 762
 763 /* Regulator ops (except VRTC) */
 764 static struct regulator_ops tps65910_ops_dcdc = {
 765         .is_enabled             = regulator_is_enabled_regmap,
 766         .enable                 = regulator_enable_regmap,
 767         .disable                = regulator_disable_regmap,
 768         .set_mode               = tps65910_set_mode,
 769         .get_mode               = tps65910_get_mode,
 770         .get_voltage_sel        = tps65910_get_voltage_dcdc_sel,
 771         .set_voltage_sel        = tps65910_set_voltage_dcdc_sel,
 772         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 773         .list_voltage           = tps65910_list_voltage_dcdc,
 774         .map_voltage            = regulator_map_voltage_ascend,
 775 };
 776
 777 static struct regulator_ops tps65910_ops_vdd3 = {
 778         .is_enabled             = regulator_is_enabled_regmap,
 779         .enable                 = regulator_enable_regmap,
 780         .disable                = regulator_disable_regmap,
 781         .set_mode               = tps65910_set_mode,
 782         .get_mode               = tps65910_get_mode,
 783         .get_voltage            = tps65910_get_voltage_vdd3,
 784         .list_voltage           = regulator_list_voltage_table,
 785         .map_voltage            = regulator_map_voltage_ascend,
 786 };
 787
 788 static struct regulator_ops tps65910_ops_vbb = {
 789         .is_enabled             = regulator_is_enabled_regmap,
 790         .enable                 = regulator_enable_regmap,
 791         .disable                = regulator_disable_regmap,
 792         .set_mode               = tps65910_set_mode,
 793         .get_mode               = tps65910_get_mode,
 794         .get_voltage_sel        = tps65910_get_voltage_sel,
 795         .set_voltage_sel        = tps65910_set_voltage_sel,
 796         .list_voltage           = regulator_list_voltage_table,
 797         .map_voltage            = regulator_map_voltage_iterate,
 798 };
 799
 800 static struct regulator_ops tps65910_ops = {
 801         .is_enabled             = regulator_is_enabled_regmap,
 802         .enable                 = regulator_enable_regmap,
 803         .disable                = regulator_disable_regmap,
 804         .set_mode               = tps65910_set_mode,
 805         .get_mode               = tps65910_get_mode,
 806         .get_voltage_sel        = tps65910_get_voltage_sel,
 807         .set_voltage_sel        = tps65910_set_voltage_sel,
 808         .list_voltage           = regulator_list_voltage_table,
 809         .map_voltage            = regulator_map_voltage_ascend,
 810 };
 811
 812 static struct regulator_ops tps65911_ops = {
 813         .is_enabled             = regulator_is_enabled_regmap,
 814         .enable                 = regulator_enable_regmap,
 815         .disable                = regulator_disable_regmap,
 816         .set_mode               = tps65910_set_mode,
 817         .get_mode               = tps65910_get_mode,
 818         .get_voltage_sel        = tps65911_get_voltage_sel,
 819         .set_voltage_sel        = tps65911_set_voltage_sel,
 820         .list_voltage           = tps65911_list_voltage,
 821         .map_voltage            = regulator_map_voltage_ascend,
 822 };
 823
 824 static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
 825                 int id, int ext_sleep_config)
 826 {
 827         struct tps65910 *mfd = pmic->mfd;
 828         u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
 829         u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
 830         int ret;
 831
 832         /*
 833          * Regulator can not be control from multiple external input EN1, EN2
 834          * and EN3 together.
 835          */
 836         if (ext_sleep_config & EXT_SLEEP_CONTROL) {
 837                 int en_count;
 838                 en_count = ((ext_sleep_config &
 839                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
 840                 en_count += ((ext_sleep_config &
 841                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
 842                 en_count += ((ext_sleep_config &
 843                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
 844                 en_count += ((ext_sleep_config &
 845                                 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
 846                 if (en_count > 1) {
 847                         dev_err(mfd->dev,
 848                                 "External sleep control flag is not proper\n");
 849                         return -EINVAL;
 850                 }
 851         }
 852
 853         pmic->board_ext_control[id] = ext_sleep_config;
 854
 855         /* External EN1 control */
 856         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
 857                 ret = tps65910_reg_set_bits(mfd,
 858                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 859         else
 860                 ret = tps65910_reg_clear_bits(mfd,
 861                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 862         if (ret < 0) {
 863                 dev_err(mfd->dev,
 864                         "Error in configuring external control EN1\n");
 865                 return ret;
 866         }
 867
 868         /* External EN2 control */
 869         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
 870                 ret = tps65910_reg_set_bits(mfd,
 871                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 872         else
 873                 ret = tps65910_reg_clear_bits(mfd,
 874                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 875         if (ret < 0) {
 876                 dev_err(mfd->dev,
 877                         "Error in configuring external control EN2\n");
 878                 return ret;
 879         }
 880
 881         /* External EN3 control for TPS65910 LDO only */
 882         if ((tps65910_chip_id(mfd) == TPS65910) &&
 883                         (id >= TPS65910_REG_VDIG1)) {
 884                 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
 885                         ret = tps65910_reg_set_bits(mfd,
 886                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 887                 else
 888                         ret = tps65910_reg_clear_bits(mfd,
 889                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 890                 if (ret < 0) {
 891                         dev_err(mfd->dev,
 892                                 "Error in configuring external control EN3\n");
 893                         return ret;
 894                 }
 895         }
 896
 897         /* Return if no external control is selected */
 898         if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
 899                 /* Clear all sleep controls */
 900                 ret = tps65910_reg_clear_bits(mfd,
 901                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
 902                 if (!ret)
 903                         ret = tps65910_reg_clear_bits(mfd,
 904                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 905                 if (ret < 0)
 906                         dev_err(mfd->dev,
 907                                 "Error in configuring SLEEP register\n");
 908                 return ret;
 909         }
 910
 911         /*
 912          * For regulator that has separate operational and sleep register make
 913          * sure that operational is used and clear sleep register to turn
 914          * regulator off when external control is inactive
 915          */
 916         if ((id == TPS65910_REG_VDD1) ||
 917                 (id == TPS65910_REG_VDD2) ||
 918                         ((id == TPS65911_REG_VDDCTRL) &&
 919                                 (tps65910_chip_id(mfd) == TPS65911))) {
 920                 int op_reg_add = pmic->get_ctrl_reg(id) + 1;
 921                 int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
 922                 int opvsel, srvsel;
 923
 924                 ret = tps65910_reg_read(pmic->mfd, op_reg_add, &opvsel);
 925                 if (ret < 0)
 926                         return ret;
 927                 ret = tps65910_reg_read(pmic->mfd, sr_reg_add, &srvsel);
 928                 if (ret < 0)
 929                         return ret;
 930
 931                 if (opvsel & VDD1_OP_CMD_MASK) {
 932                         u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
 933
 934                         ret = tps65910_reg_write(pmic->mfd, op_reg_add,
 935                                                  reg_val);
 936                         if (ret < 0) {
 937                                 dev_err(mfd->dev,
 938                                         "Error in configuring op register\n");
 939                                 return ret;
 940                         }
 941                 }
 942                 ret = tps65910_reg_write(pmic->mfd, sr_reg_add, 0);
 943                 if (ret < 0) {
 944                         dev_err(mfd->dev, "Error in setting sr register\n");
 945                         return ret;
 946                 }
 947         }
 948
 949         ret = tps65910_reg_clear_bits(mfd,
 950                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
 951         if (!ret) {
 952                 if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
 953                         ret = tps65910_reg_set_bits(mfd,
 954                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 955                 else
 956                         ret = tps65910_reg_clear_bits(mfd,
 957                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 958         }
 959         if (ret < 0)
 960                 dev_err(mfd->dev,
 961                         "Error in configuring SLEEP register\n");
 962
 963         return ret;
 964 }
 965
 966 #ifdef CONFIG_OF
 967
 968 static struct of_regulator_match tps65910_matches[] = {
 969         { .name = "vrtc",       .driver_data = (void *) &tps65910_regs[0] },
 970         { .name = "vio",        .driver_data = (void *) &tps65910_regs[1] },
 971         { .name = "vdd1",       .driver_data = (void *) &tps65910_regs[2] },
 972         { .name = "vdd2",       .driver_data = (void *) &tps65910_regs[3] },
 973         { .name = "vdd3",       .driver_data = (void *) &tps65910_regs[4] },
 974         { .name = "vdig1",      .driver_data = (void *) &tps65910_regs[5] },
 975         { .name = "vdig2",      .driver_data = (void *) &tps65910_regs[6] },
 976         { .name = "vpll",       .driver_data = (void *) &tps65910_regs[7] },
 977         { .name = "vdac",       .driver_data = (void *) &tps65910_regs[8] },
 978         { .name = "vaux1",      .driver_data = (void *) &tps65910_regs[9] },
 979         { .name = "vaux2",      .driver_data = (void *) &tps65910_regs[10] },
 980         { .name = "vaux33",     .driver_data = (void *) &tps65910_regs[11] },
 981         { .name = "vmmc",       .driver_data = (void *) &tps65910_regs[12] },
 982         { .name = "vbb",        .driver_data = (void *) &tps65910_regs[13] },
 983 };
 984
 985 static struct of_regulator_match tps65911_matches[] = {
 986         { .name = "vrtc",       .driver_data = (void *) &tps65911_regs[0] },
 987         { .name = "vio",        .driver_data = (void *) &tps65911_regs[1] },
 988         { .name = "vdd1",       .driver_data = (void *) &tps65911_regs[2] },
 989         { .name = "vdd2",       .driver_data = (void *) &tps65911_regs[3] },
 990         { .name = "vddctrl",    .driver_data = (void *) &tps65911_regs[4] },
 991         { .name = "ldo1",       .driver_data = (void *) &tps65911_regs[5] },
 992         { .name = "ldo2",       .driver_data = (void *) &tps65911_regs[6] },
 993         { .name = "ldo3",       .driver_data = (void *) &tps65911_regs[7] },
 994         { .name = "ldo4",       .driver_data = (void *) &tps65911_regs[8] },
 995         { .name = "ldo5",       .driver_data = (void *) &tps65911_regs[9] },
 996         { .name = "ldo6",       .driver_data = (void *) &tps65911_regs[10] },
 997         { .name = "ldo7",       .driver_data = (void *) &tps65911_regs[11] },
 998         { .name = "ldo8",       .driver_data = (void *) &tps65911_regs[12] },
 999 };
1000
1001 static struct tps65910_board *tps65910_parse_dt_reg_data(
1002                 struct platform_device *pdev,
1003                 struct of_regulator_match **tps65910_reg_matches)
1004 {
1005         struct tps65910_board *pmic_plat_data;
1006         struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1007         struct device_node *np, *regulators;
1008         struct of_regulator_match *matches;
1009         unsigned int prop;
1010         int idx = 0, ret, count;
1011
1012         pmic_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pmic_plat_data),
1013                                         GFP_KERNEL);
1014         if (!pmic_plat_data)
1015                 return NULL;
1016
1017         np = pdev->dev.parent->of_node;
1018         regulators = of_get_child_by_name(np, "regulators");
1019         if (!regulators) {
1020                 dev_err(&pdev->dev, "regulator node not found\n");
1021                 return NULL;
1022         }
1023
1024         switch (tps65910_chip_id(tps65910)) {
1025         case TPS65910:
1026                 count = ARRAY_SIZE(tps65910_matches);
1027                 matches = tps65910_matches;
1028                 break;
1029         case TPS65911:
1030                 count = ARRAY_SIZE(tps65911_matches);
1031                 matches = tps65911_matches;
1032                 break;
1033         default:
1034                 of_node_put(regulators);
1035                 dev_err(&pdev->dev, "Invalid tps chip version\n");
1036                 return NULL;
1037         }
1038
1039         ret = of_regulator_match(&pdev->dev, regulators, matches, count);
1040         of_node_put(regulators);
1041         if (ret < 0) {
1042                 dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
1043                         ret);
1044                 return NULL;
1045         }
1046
1047         *tps65910_reg_matches = matches;
1048
1049         for (idx = 0; idx < count; idx++) {
1050                 if (!matches[idx].of_node)
1051                         continue;
1052
1053                 pmic_plat_data->tps65910_pmic_init_data[idx] =
1054                                                         matches[idx].init_data;
1055
1056                 ret = of_property_read_u32(matches[idx].of_node,
1057                                 "ti,regulator-ext-sleep-control", &prop);
1058                 if (!ret)
1059                         pmic_plat_data->regulator_ext_sleep_control[idx] = prop;
1060
1061         }
1062
1063         return pmic_plat_data;
1064 }
1065 #else
1066 static inline struct tps65910_board *tps65910_parse_dt_reg_data(
1067                         struct platform_device *pdev,
1068                         struct of_regulator_match **tps65910_reg_matches)
1069 {
1070         *tps65910_reg_matches = NULL;
1071         return NULL;
1072 }
1073 #endif
1074
1075 static int tps65910_probe(struct platform_device *pdev)
1076 {
1077         struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1078         struct regulator_config config = { };
1079         struct tps_info *info;
1080         struct regulator_dev *rdev;
1081         struct tps65910_reg *pmic;
1082         struct tps65910_board *pmic_plat_data;
1083         struct of_regulator_match *tps65910_reg_matches = NULL;
1084         int i, err;
1085
1086         pmic_plat_data = dev_get_platdata(tps65910->dev);
1087         if (!pmic_plat_data && tps65910->dev->of_node)
1088                 pmic_plat_data = tps65910_parse_dt_reg_data(pdev,
1089                                                 &tps65910_reg_matches);
1090
1091         if (!pmic_plat_data) {
1092                 dev_err(&pdev->dev, "Platform data not found\n");
1093                 return -EINVAL;
1094         }
1095
1096         pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1097         if (!pmic)
1098                 return -ENOMEM;
1099
1100         pmic->mfd = tps65910;
1101         platform_set_drvdata(pdev, pmic);
1102
1103         /* Give control of all register to control port */
1104         tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
1105                                 DEVCTRL_SR_CTL_I2C_SEL_MASK);
1106
1107         switch (tps65910_chip_id(tps65910)) {
1108         case TPS65910:
1109                 pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
1110                 pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
1111                 pmic->ext_sleep_control = tps65910_ext_sleep_control;
1112                 info = tps65910_regs;
1113                 break;
1114         case TPS65911:
1115                 pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
1116                 pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
1117                 pmic->ext_sleep_control = tps65911_ext_sleep_control;
1118                 info = tps65911_regs;
1119                 break;
1120         default:
1121                 dev_err(&pdev->dev, "Invalid tps chip version\n");
1122                 return -ENODEV;
1123         }
1124
1125         pmic->desc = devm_kzalloc(&pdev->dev, pmic->num_regulators *
1126                         sizeof(struct regulator_desc), GFP_KERNEL);
1127         if (!pmic->desc)
1128                 return -ENOMEM;
1129
1130         pmic->info = devm_kzalloc(&pdev->dev, pmic->num_regulators *
1131                         sizeof(struct tps_info *), GFP_KERNEL);
1132         if (!pmic->info)
1133                 return -ENOMEM;
1134
1135         pmic->rdev = devm_kzalloc(&pdev->dev, pmic->num_regulators *
1136                         sizeof(struct regulator_dev *), GFP_KERNEL);
1137         if (!pmic->rdev)
1138                 return -ENOMEM;
1139
1140         for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
1141                         i++, info++) {
1142                 /* Register the regulators */
1143                 pmic->info[i] = info;
1144
1145                 pmic->desc[i].name = info->name;
1146                 pmic->desc[i].supply_name = info->vin_name;
1147                 pmic->desc[i].id = i;
1148                 pmic->desc[i].n_voltages = info->n_voltages;
1149                 pmic->desc[i].enable_time = info->enable_time_us;
1150
1151                 if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
1152                         pmic->desc[i].ops = &tps65910_ops_dcdc;
1153                         pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
1154                                                         VDD1_2_NUM_VOLT_COARSE;
1155                         pmic->desc[i].ramp_delay = 12500;
1156                 } else if (i == TPS65910_REG_VDD3) {
1157                         if (tps65910_chip_id(tps65910) == TPS65910) {
1158                                 pmic->desc[i].ops = &tps65910_ops_vdd3;
1159                                 pmic->desc[i].volt_table = info->voltage_table;
1160                         } else {
1161                                 pmic->desc[i].ops = &tps65910_ops_dcdc;
1162                                 pmic->desc[i].ramp_delay = 5000;
1163                         }
1164                 } else if (i == TPS65910_REG_VBB &&
1165                                 tps65910_chip_id(tps65910) == TPS65910) {
1166                         pmic->desc[i].ops = &tps65910_ops_vbb;
1167                         pmic->desc[i].volt_table = info->voltage_table;
1168                 } else {
1169                         if (tps65910_chip_id(tps65910) == TPS65910) {
1170                                 pmic->desc[i].ops = &tps65910_ops;
1171                                 pmic->desc[i].volt_table = info->voltage_table;
1172                         } else {
1173                                 pmic->desc[i].ops = &tps65911_ops;
1174                         }
1175                 }
1176
1177                 err = tps65910_set_ext_sleep_config(pmic, i,
1178                                 pmic_plat_data->regulator_ext_sleep_control[i]);
1179                 /*
1180                  * Failing on regulator for configuring externally control
1181                  * is not a serious issue, just throw warning.
1182                  */
1183                 if (err < 0)
1184                         dev_warn(tps65910->dev,
1185                                 "Failed to initialise ext control config\n");
1186
1187                 pmic->desc[i].type = REGULATOR_VOLTAGE;
1188                 pmic->desc[i].owner = THIS_MODULE;
1189                 pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i);
1190                 pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED;
1191
1192                 config.dev = tps65910->dev;
1193                 config.init_data = pmic_plat_data->tps65910_pmic_init_data[i];
1194                 config.driver_data = pmic;
1195                 config.regmap = tps65910->regmap;
1196
1197                 if (tps65910_reg_matches)
1198                         config.of_node = tps65910_reg_matches[i].of_node;
1199
1200                 rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
1201                                                &config);
1202                 if (IS_ERR(rdev)) {
1203                         dev_err(tps65910->dev,
1204                                 "failed to register %s regulator\n",
1205                                 pdev->name);
1206                         return PTR_ERR(rdev);
1207                 }
1208
1209                 /* Save regulator for cleanup */
1210                 pmic->rdev[i] = rdev;
1211         }
1212         return 0;
1213 }
1214
1215 static void tps65910_shutdown(struct platform_device *pdev)
1216 {
1217         struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1218         int i;
1219
1220         /*
1221          * Before bootloader jumps to kernel, it makes sure that required
1222          * external control signals are in desired state so that given rails
1223          * can be configure accordingly.
1224          * If rails are configured to be controlled from external control
1225          * then before shutting down/rebooting the system, the external
1226          * control configuration need to be remove from the rails so that
1227          * its output will be available as per register programming even
1228          * if external controls are removed. This is require when the POR
1229          * value of the control signals are not in active state and before
1230          * bootloader initializes it, the system requires the rail output
1231          * to be active for booting.
1232          */
1233         for (i = 0; i < pmic->num_regulators; i++) {
1234                 int err;
1235                 if (!pmic->rdev[i])
1236                         continue;
1237
1238                 err = tps65910_set_ext_sleep_config(pmic, i, 0);
1239                 if (err < 0)
1240                         dev_err(&pdev->dev,
1241                                 "Error in clearing external control\n");
1242         }
1243 }
1244
1245 static struct platform_driver tps65910_driver = {
1246         .driver = {
1247                 .name = "tps65910-pmic",
1248         },
1249         .probe = tps65910_probe,
1250         .shutdown = tps65910_shutdown,
1251 };
1252
1253 static int __init tps65910_init(void)
1254 {
1255         return platform_driver_register(&tps65910_driver);
1256 }
1257 subsys_initcall(tps65910_init);
1258
1259 static void __exit tps65910_cleanup(void)
1260 {
1261         platform_driver_unregister(&tps65910_driver);
1262 }
1263 module_exit(tps65910_cleanup);
1264
1265 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1266 MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
1267 MODULE_LICENSE("GPL v2");
1268 MODULE_ALIAS("platform:tps65910-pmic");