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/of.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/regulator/driver.h>
  23 #include <linux/regulator/machine.h>
  24 #include <linux/slab.h>
  25 #include <linux/gpio.h>
  26 #include <linux/mfd/tps65910.h>
  27 #include <linux/regulator/of_regulator.h>
  28
  29 #define TPS65910_SUPPLY_STATE_ENABLED   0x1
  30 #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 |       \
  31                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 |          \
  32                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 |          \
  33                         TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
  34
  35 /* supported VIO voltages in microvolts */
  36 static const unsigned int VIO_VSEL_table[] = {
  37         1500000, 1800000, 2500000, 3300000,
  38 };
  39
  40 /* VSEL tables for TPS65910 specific LDOs and dcdc's */
  41
  42 /* supported VRTC voltages in microvolts */
  43 static const unsigned int VRTC_VSEL_table[] = {
  44         1800000,
  45 };
  46
  47 /* supported VDD3 voltages in microvolts */
  48 static const unsigned int VDD3_VSEL_table[] = {
  49         5000000,
  50 };
  51
  52 /* supported VDIG1 voltages in microvolts */
  53 static const unsigned int VDIG1_VSEL_table[] = {
  54         1200000, 1500000, 1800000, 2700000,
  55 };
  56
  57 /* supported VDIG2 voltages in microvolts */
  58 static const unsigned int VDIG2_VSEL_table[] = {
  59         1000000, 1100000, 1200000, 1800000,
  60 };
  61
  62 /* supported VPLL voltages in microvolts */
  63 static const unsigned int VPLL_VSEL_table[] = {
  64         1000000, 1100000, 1800000, 2500000,
  65 };
  66
  67 /* supported VDAC voltages in microvolts */
  68 static const unsigned int VDAC_VSEL_table[] = {
  69         1800000, 2600000, 2800000, 2850000,
  70 };
  71
  72 /* supported VAUX1 voltages in microvolts */
  73 static const unsigned int VAUX1_VSEL_table[] = {
  74         1800000, 2500000, 2800000, 2850000,
  75 };
  76
  77 /* supported VAUX2 voltages in microvolts */
  78 static const unsigned int VAUX2_VSEL_table[] = {
  79         1800000, 2800000, 2900000, 3300000,
  80 };
  81
  82 /* supported VAUX33 voltages in microvolts */
  83 static const unsigned int VAUX33_VSEL_table[] = {
  84         1800000, 2000000, 2800000, 3300000,
  85 };
  86
  87 /* supported VMMC voltages in microvolts */
  88 static const unsigned int VMMC_VSEL_table[] = {
  89         1800000, 2800000, 3000000, 3300000,
  90 };
  91
  92 /* supported BBCH voltages in microvolts */
  93 static const unsigned int VBB_VSEL_table[] = {
  94         3000000, 2520000, 3150000, 5000000,
  95 };
  96
  97 struct tps_info {
  98         const char *name;
  99         const char *vin_name;
 100         u8 n_voltages;
 101         const unsigned int *voltage_table;
 102         int enable_time_us;
 103 };
 104
 105 static struct tps_info tps65910_regs[] = {
 106         {
 107                 .name = "vrtc",
 108                 .vin_name = "vcc7",
 109                 .n_voltages = ARRAY_SIZE(VRTC_VSEL_table),
 110                 .voltage_table = VRTC_VSEL_table,
 111                 .enable_time_us = 2200,
 112         },
 113         {
 114                 .name = "vio",
 115                 .vin_name = "vccio",
 116                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 117                 .voltage_table = VIO_VSEL_table,
 118                 .enable_time_us = 350,
 119         },
 120         {
 121                 .name = "vdd1",
 122                 .vin_name = "vcc1",
 123                 .enable_time_us = 350,
 124         },
 125         {
 126                 .name = "vdd2",
 127                 .vin_name = "vcc2",
 128                 .enable_time_us = 350,
 129         },
 130         {
 131                 .name = "vdd3",
 132                 .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
 133                 .voltage_table = VDD3_VSEL_table,
 134                 .enable_time_us = 200,
 135         },
 136         {
 137                 .name = "vdig1",
 138                 .vin_name = "vcc6",
 139                 .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
 140                 .voltage_table = VDIG1_VSEL_table,
 141                 .enable_time_us = 100,
 142         },
 143         {
 144                 .name = "vdig2",
 145                 .vin_name = "vcc6",
 146                 .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
 147                 .voltage_table = VDIG2_VSEL_table,
 148                 .enable_time_us = 100,
 149         },
 150         {
 151                 .name = "vpll",
 152                 .vin_name = "vcc5",
 153                 .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
 154                 .voltage_table = VPLL_VSEL_table,
 155                 .enable_time_us = 100,
 156         },
 157         {
 158                 .name = "vdac",
 159                 .vin_name = "vcc5",
 160                 .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
 161                 .voltage_table = VDAC_VSEL_table,
 162                 .enable_time_us = 100,
 163         },
 164         {
 165                 .name = "vaux1",
 166                 .vin_name = "vcc4",
 167                 .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
 168                 .voltage_table = VAUX1_VSEL_table,
 169                 .enable_time_us = 100,
 170         },
 171         {
 172                 .name = "vaux2",
 173                 .vin_name = "vcc4",
 174                 .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
 175                 .voltage_table = VAUX2_VSEL_table,
 176                 .enable_time_us = 100,
 177         },
 178         {
 179                 .name = "vaux33",
 180                 .vin_name = "vcc3",
 181                 .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
 182                 .voltage_table = VAUX33_VSEL_table,
 183                 .enable_time_us = 100,
 184         },
 185         {
 186                 .name = "vmmc",
 187                 .vin_name = "vcc3",
 188                 .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
 189                 .voltage_table = VMMC_VSEL_table,
 190                 .enable_time_us = 100,
 191         },
 192         {
 193                 .name = "vbb",
 194                 .vin_name = "vcc7",
 195                 .n_voltages = ARRAY_SIZE(VBB_VSEL_table),
 196                 .voltage_table = VBB_VSEL_table,
 197         },
 198 };
 199
 200 static struct tps_info tps65911_regs[] = {
 201         {
 202                 .name = "vrtc",
 203                 .vin_name = "vcc7",
 204                 .enable_time_us = 2200,
 205         },
 206         {
 207                 .name = "vio",
 208                 .vin_name = "vccio",
 209                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 210                 .voltage_table = VIO_VSEL_table,
 211                 .enable_time_us = 350,
 212         },
 213         {
 214                 .name = "vdd1",
 215                 .vin_name = "vcc1",
 216                 .n_voltages = 0x4C,
 217                 .enable_time_us = 350,
 218         },
 219         {
 220                 .name = "vdd2",
 221                 .vin_name = "vcc2",
 222                 .n_voltages = 0x4C,
 223                 .enable_time_us = 350,
 224         },
 225         {
 226                 .name = "vddctrl",
 227                 .n_voltages = 0x44,
 228                 .enable_time_us = 900,
 229         },
 230         {
 231                 .name = "ldo1",
 232                 .vin_name = "vcc6",
 233                 .n_voltages = 0x33,
 234                 .enable_time_us = 420,
 235         },
 236         {
 237                 .name = "ldo2",
 238                 .vin_name = "vcc6",
 239                 .n_voltages = 0x33,
 240                 .enable_time_us = 420,
 241         },
 242         {
 243                 .name = "ldo3",
 244                 .vin_name = "vcc5",
 245                 .n_voltages = 0x1A,
 246                 .enable_time_us = 230,
 247         },
 248         {
 249                 .name = "ldo4",
 250                 .vin_name = "vcc5",
 251                 .n_voltages = 0x33,
 252                 .enable_time_us = 230,
 253         },
 254         {
 255                 .name = "ldo5",
 256                 .vin_name = "vcc4",
 257                 .n_voltages = 0x1A,
 258                 .enable_time_us = 230,
 259         },
 260         {
 261                 .name = "ldo6",
 262                 .vin_name = "vcc3",
 263                 .n_voltages = 0x1A,
 264                 .enable_time_us = 230,
 265         },
 266         {
 267                 .name = "ldo7",
 268                 .vin_name = "vcc3",
 269                 .n_voltages = 0x1A,
 270                 .enable_time_us = 230,
 271         },
 272         {
 273                 .name = "ldo8",
 274                 .vin_name = "vcc3",
 275                 .n_voltages = 0x1A,
 276                 .enable_time_us = 230,
 277         },
 278 };
 279
 280 #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
 281 static unsigned int tps65910_ext_sleep_control[] = {
 282         0,
 283         EXT_CONTROL_REG_BITS(VIO,    1, 0),
 284         EXT_CONTROL_REG_BITS(VDD1,   1, 1),
 285         EXT_CONTROL_REG_BITS(VDD2,   1, 2),
 286         EXT_CONTROL_REG_BITS(VDD3,   1, 3),
 287         EXT_CONTROL_REG_BITS(VDIG1,  0, 1),
 288         EXT_CONTROL_REG_BITS(VDIG2,  0, 2),
 289         EXT_CONTROL_REG_BITS(VPLL,   0, 6),
 290         EXT_CONTROL_REG_BITS(VDAC,   0, 7),
 291         EXT_CONTROL_REG_BITS(VAUX1,  0, 3),
 292         EXT_CONTROL_REG_BITS(VAUX2,  0, 4),
 293         EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
 294         EXT_CONTROL_REG_BITS(VMMC,   0, 0),
 295 };
 296
 297 static unsigned int tps65911_ext_sleep_control[] = {
 298         0,
 299         EXT_CONTROL_REG_BITS(VIO,     1, 0),
 300         EXT_CONTROL_REG_BITS(VDD1,    1, 1),
 301         EXT_CONTROL_REG_BITS(VDD2,    1, 2),
 302         EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
 303         EXT_CONTROL_REG_BITS(LDO1,    0, 1),
 304         EXT_CONTROL_REG_BITS(LDO2,    0, 2),
 305         EXT_CONTROL_REG_BITS(LDO3,    0, 7),
 306         EXT_CONTROL_REG_BITS(LDO4,    0, 6),
 307         EXT_CONTROL_REG_BITS(LDO5,    0, 3),
 308         EXT_CONTROL_REG_BITS(LDO6,    0, 0),
 309         EXT_CONTROL_REG_BITS(LDO7,    0, 5),
 310         EXT_CONTROL_REG_BITS(LDO8,    0, 4),
 311 };
 312
 313 struct tps65910_reg {
 314         struct regulator_desc *desc;
 315         struct tps65910 *mfd;
 316         struct regulator_dev **rdev;
 317         struct tps_info **info;
 318         int num_regulators;
 319         int mode;
 320         int  (*get_ctrl_reg)(int);
 321         unsigned int *ext_sleep_control;
 322         unsigned int board_ext_control[TPS65910_NUM_REGS];
 323 };
 324
 325 static int tps65910_get_ctrl_register(int id)
 326 {
 327         switch (id) {
 328         case TPS65910_REG_VRTC:
 329                 return TPS65910_VRTC;
 330         case TPS65910_REG_VIO:
 331                 return TPS65910_VIO;
 332         case TPS65910_REG_VDD1:
 333                 return TPS65910_VDD1;
 334         case TPS65910_REG_VDD2:
 335                 return TPS65910_VDD2;
 336         case TPS65910_REG_VDD3:
 337                 return TPS65910_VDD3;
 338         case TPS65910_REG_VDIG1:
 339                 return TPS65910_VDIG1;
 340         case TPS65910_REG_VDIG2:
 341                 return TPS65910_VDIG2;
 342         case TPS65910_REG_VPLL:
 343                 return TPS65910_VPLL;
 344         case TPS65910_REG_VDAC:
 345                 return TPS65910_VDAC;
 346         case TPS65910_REG_VAUX1:
 347                 return TPS65910_VAUX1;
 348         case TPS65910_REG_VAUX2:
 349                 return TPS65910_VAUX2;
 350         case TPS65910_REG_VAUX33:
 351                 return TPS65910_VAUX33;
 352         case TPS65910_REG_VMMC:
 353                 return TPS65910_VMMC;
 354         case TPS65910_REG_VBB:
 355                 return TPS65910_BBCH;
 356         default:
 357                 return -EINVAL;
 358         }
 359 }
 360
 361 static int tps65911_get_ctrl_register(int id)
 362 {
 363         switch (id) {
 364         case TPS65910_REG_VRTC:
 365                 return TPS65910_VRTC;
 366         case TPS65910_REG_VIO:
 367                 return TPS65910_VIO;
 368         case TPS65910_REG_VDD1:
 369                 return TPS65910_VDD1;
 370         case TPS65910_REG_VDD2:
 371                 return TPS65910_VDD2;
 372         case TPS65911_REG_VDDCTRL:
 373                 return TPS65911_VDDCTRL;
 374         case TPS65911_REG_LDO1:
 375                 return TPS65911_LDO1;
 376         case TPS65911_REG_LDO2:
 377                 return TPS65911_LDO2;
 378         case TPS65911_REG_LDO3:
 379                 return TPS65911_LDO3;
 380         case TPS65911_REG_LDO4:
 381                 return TPS65911_LDO4;
 382         case TPS65911_REG_LDO5:
 383                 return TPS65911_LDO5;
 384         case TPS65911_REG_LDO6:
 385                 return TPS65911_LDO6;
 386         case TPS65911_REG_LDO7:
 387                 return TPS65911_LDO7;
 388         case TPS65911_REG_LDO8:
 389                 return TPS65911_LDO8;
 390         default:
 391                 return -EINVAL;
 392         }
 393 }
 394
 395 static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
 396 {
 397         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 398         struct tps65910 *mfd = pmic->mfd;
 399         int reg, value, id = rdev_get_id(dev);
 400
 401         reg = pmic->get_ctrl_reg(id);
 402         if (reg < 0)
 403                 return reg;
 404
 405         switch (mode) {
 406         case REGULATOR_MODE_NORMAL:
 407                 return tps65910_reg_update_bits(pmic->mfd, reg,
 408                                                 LDO_ST_MODE_BIT | LDO_ST_ON_BIT,
 409                                                 LDO_ST_ON_BIT);
 410         case REGULATOR_MODE_IDLE:
 411                 value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
 412                 return tps65910_reg_set_bits(mfd, reg, value);
 413         case REGULATOR_MODE_STANDBY:
 414                 return tps65910_reg_clear_bits(mfd, reg, LDO_ST_ON_BIT);
 415         }
 416
 417         return -EINVAL;
 418 }
 419
 420 static unsigned int tps65910_get_mode(struct regulator_dev *dev)
 421 {
 422         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 423         int ret, reg, value, id = rdev_get_id(dev);
 424
 425         reg = pmic->get_ctrl_reg(id);
 426         if (reg < 0)
 427                 return reg;
 428
 429         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 430         if (ret < 0)
 431                 return ret;
 432
 433         if (!(value & LDO_ST_ON_BIT))
 434                 return REGULATOR_MODE_STANDBY;
 435         else if (value & LDO_ST_MODE_BIT)
 436                 return REGULATOR_MODE_IDLE;
 437         else
 438                 return REGULATOR_MODE_NORMAL;
 439 }
 440
 441 static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
 442 {
 443         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 444         int ret, id = rdev_get_id(dev);
 445         int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
 446
 447         switch (id) {
 448         case TPS65910_REG_VDD1:
 449                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_OP, &opvsel);
 450                 if (ret < 0)
 451                         return ret;
 452                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1, &mult);
 453                 if (ret < 0)
 454                         return ret;
 455                 mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
 456                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_SR, &srvsel);
 457                 if (ret < 0)
 458                         return ret;
 459                 sr = opvsel & VDD1_OP_CMD_MASK;
 460                 opvsel &= VDD1_OP_SEL_MASK;
 461                 srvsel &= VDD1_SR_SEL_MASK;
 462                 vselmax = 75;
 463                 break;
 464         case TPS65910_REG_VDD2:
 465                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_OP, &opvsel);
 466                 if (ret < 0)
 467                         return ret;
 468                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2, &mult);
 469                 if (ret < 0)
 470                         return ret;
 471                 mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
 472                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_SR, &srvsel);
 473                 if (ret < 0)
 474                         return ret;
 475                 sr = opvsel & VDD2_OP_CMD_MASK;
 476                 opvsel &= VDD2_OP_SEL_MASK;
 477                 srvsel &= VDD2_SR_SEL_MASK;
 478                 vselmax = 75;
 479                 break;
 480         case TPS65911_REG_VDDCTRL:
 481                 ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_OP,
 482                                         &opvsel);
 483                 if (ret < 0)
 484                         return ret;
 485                 ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_SR,
 486                                         &srvsel);
 487                 if (ret < 0)
 488                         return ret;
 489                 sr = opvsel & VDDCTRL_OP_CMD_MASK;
 490                 opvsel &= VDDCTRL_OP_SEL_MASK;
 491                 srvsel &= VDDCTRL_SR_SEL_MASK;
 492                 vselmax = 64;
 493                 break;
 494         }
 495
 496         /* multiplier 0 == 1 but 2,3 normal */
 497         if (!mult)
 498                 mult = 1;
 499
 500         if (sr) {
 501                 /* normalise to valid range */
 502                 if (srvsel < 3)
 503                         srvsel = 3;
 504                 if (srvsel > vselmax)
 505                         srvsel = vselmax;
 506                 return srvsel - 3;
 507         } else {
 508
 509                 /* normalise to valid range*/
 510                 if (opvsel < 3)
 511                         opvsel = 3;
 512                 if (opvsel > vselmax)
 513                         opvsel = vselmax;
 514                 return opvsel - 3;
 515         }
 516         return -EINVAL;
 517 }
 518
 519 static int tps65910_get_voltage_sel(struct regulator_dev *dev)
 520 {
 521         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 522         int ret, reg, value, id = rdev_get_id(dev);
 523
 524         reg = pmic->get_ctrl_reg(id);
 525         if (reg < 0)
 526                 return reg;
 527
 528         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 529         if (ret < 0)
 530                 return ret;
 531
 532         switch (id) {
 533         case TPS65910_REG_VIO:
 534         case TPS65910_REG_VDIG1:
 535         case TPS65910_REG_VDIG2:
 536         case TPS65910_REG_VPLL:
 537         case TPS65910_REG_VDAC:
 538         case TPS65910_REG_VAUX1:
 539         case TPS65910_REG_VAUX2:
 540         case TPS65910_REG_VAUX33:
 541         case TPS65910_REG_VMMC:
 542                 value &= LDO_SEL_MASK;
 543                 value >>= LDO_SEL_SHIFT;
 544                 break;
 545         case TPS65910_REG_VBB:
 546                 value &= BBCH_BBSEL_MASK;
 547                 value >>= BBCH_BBSEL_SHIFT;
 548                 break;
 549         default:
 550                 return -EINVAL;
 551         }
 552
 553         return value;
 554 }
 555
 556 static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
 557 {
 558         return dev->desc->volt_table[0];
 559 }
 560
 561 static int tps65911_get_voltage_sel(struct regulator_dev *dev)
 562 {
 563         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 564         int ret, id = rdev_get_id(dev);
 565         unsigned int value, reg;
 566
 567         reg = pmic->get_ctrl_reg(id);
 568
 569         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 570         if (ret < 0)
 571                 return ret;
 572
 573         switch (id) {
 574         case TPS65911_REG_LDO1:
 575         case TPS65911_REG_LDO2:
 576         case TPS65911_REG_LDO4:
 577                 value &= LDO1_SEL_MASK;
 578                 value >>= LDO_SEL_SHIFT;
 579                 break;
 580         case TPS65911_REG_LDO3:
 581         case TPS65911_REG_LDO5:
 582         case TPS65911_REG_LDO6:
 583         case TPS65911_REG_LDO7:
 584         case TPS65911_REG_LDO8:
 585                 value &= LDO3_SEL_MASK;
 586                 value >>= LDO_SEL_SHIFT;
 587                 break;
 588         case TPS65910_REG_VIO:
 589                 value &= LDO_SEL_MASK;
 590                 value >>= LDO_SEL_SHIFT;
 591                 break;
 592         default:
 593                 return -EINVAL;
 594         }
 595
 596         return value;
 597 }
 598
 599 static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
 600                                          unsigned selector)
 601 {
 602         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 603         int id = rdev_get_id(dev), vsel;
 604         int dcdc_mult = 0;
 605
 606         switch (id) {
 607         case TPS65910_REG_VDD1:
 608                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 609                 if (dcdc_mult == 1)
 610                         dcdc_mult--;
 611                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
 612
 613                 tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD1,
 614                                          VDD1_VGAIN_SEL_MASK,
 615                                          dcdc_mult << VDD1_VGAIN_SEL_SHIFT);
 616                 tps65910_reg_write(pmic->mfd, TPS65910_VDD1_OP, vsel);
 617                 break;
 618         case TPS65910_REG_VDD2:
 619                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 620                 if (dcdc_mult == 1)
 621                         dcdc_mult--;
 622                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
 623
 624                 tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD2,
 625                                          VDD1_VGAIN_SEL_MASK,
 626                                          dcdc_mult << VDD2_VGAIN_SEL_SHIFT);
 627                 tps65910_reg_write(pmic->mfd, TPS65910_VDD2_OP, vsel);
 628                 break;
 629         case TPS65911_REG_VDDCTRL:
 630                 vsel = selector + 3;
 631                 tps65910_reg_write(pmic->mfd, TPS65911_VDDCTRL_OP, vsel);
 632         }
 633
 634         return 0;
 635 }
 636
 637 static int tps65910_set_voltage_sel(struct regulator_dev *dev,
 638                                     unsigned selector)
 639 {
 640         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 641         int reg, id = rdev_get_id(dev);
 642
 643         reg = pmic->get_ctrl_reg(id);
 644         if (reg < 0)
 645                 return reg;
 646
 647         switch (id) {
 648         case TPS65910_REG_VIO:
 649         case TPS65910_REG_VDIG1:
 650         case TPS65910_REG_VDIG2:
 651         case TPS65910_REG_VPLL:
 652         case TPS65910_REG_VDAC:
 653         case TPS65910_REG_VAUX1:
 654         case TPS65910_REG_VAUX2:
 655         case TPS65910_REG_VAUX33:
 656         case TPS65910_REG_VMMC:
 657                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
 658                                                 selector << LDO_SEL_SHIFT);
 659         case TPS65910_REG_VBB:
 660                 return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
 661                                                 selector << BBCH_BBSEL_SHIFT);
 662         }
 663
 664         return -EINVAL;
 665 }
 666
 667 static int tps65911_set_voltage_sel(struct regulator_dev *dev,
 668                                     unsigned selector)
 669 {
 670         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 671         int reg, id = rdev_get_id(dev);
 672
 673         reg = pmic->get_ctrl_reg(id);
 674         if (reg < 0)
 675                 return reg;
 676
 677         switch (id) {
 678         case TPS65911_REG_LDO1:
 679         case TPS65911_REG_LDO2:
 680         case TPS65911_REG_LDO4:
 681                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO1_SEL_MASK,
 682                                                 selector << LDO_SEL_SHIFT);
 683         case TPS65911_REG_LDO3:
 684         case TPS65911_REG_LDO5:
 685         case TPS65911_REG_LDO6:
 686         case TPS65911_REG_LDO7:
 687         case TPS65911_REG_LDO8:
 688                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO3_SEL_MASK,
 689                                                 selector << LDO_SEL_SHIFT);
 690         case TPS65910_REG_VIO:
 691                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
 692                                                 selector << LDO_SEL_SHIFT);
 693         case TPS65910_REG_VBB:
 694                 return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
 695                                                 selector << BBCH_BBSEL_SHIFT);
 696         }
 697
 698         return -EINVAL;
 699 }
 700
 701
 702 static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
 703                                         unsigned selector)
 704 {
 705         int volt, mult = 1, id = rdev_get_id(dev);
 706
 707         switch (id) {
 708         case TPS65910_REG_VDD1:
 709         case TPS65910_REG_VDD2:
 710                 mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 711                 volt = VDD1_2_MIN_VOLT +
 712                         (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
 713                 break;
 714         case TPS65911_REG_VDDCTRL:
 715                 volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
 716                 break;
 717         default:
 718                 BUG();
 719                 return -EINVAL;
 720         }
 721
 722         return  volt * 100 * mult;
 723 }
 724
 725 static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
 726 {
 727         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 728         int step_mv = 0, id = rdev_get_id(dev);
 729
 730         switch (id) {
 731         case TPS65911_REG_LDO1:
 732         case TPS65911_REG_LDO2:
 733         case TPS65911_REG_LDO4:
 734                 /* The first 5 values of the selector correspond to 1V */
 735                 if (selector < 5)
 736                         selector = 0;
 737                 else
 738                         selector -= 4;
 739
 740                 step_mv = 50;
 741                 break;
 742         case TPS65911_REG_LDO3:
 743         case TPS65911_REG_LDO5:
 744         case TPS65911_REG_LDO6:
 745         case TPS65911_REG_LDO7:
 746         case TPS65911_REG_LDO8:
 747                 /* The first 3 values of the selector correspond to 1V */
 748                 if (selector < 3)
 749                         selector = 0;
 750                 else
 751                         selector -= 2;
 752
 753                 step_mv = 100;
 754                 break;
 755         case TPS65910_REG_VIO:
 756                 return pmic->info[id]->voltage_table[selector];
 757         default:
 758                 return -EINVAL;
 759         }
 760
 761         return (LDO_MIN_VOLT + selector * step_mv) * 1000;
 762 }
 763
 764 /* Regulator ops (except VRTC) */
 765 static struct regulator_ops tps65910_ops_dcdc = {
 766         .is_enabled             = regulator_is_enabled_regmap,
 767         .enable                 = regulator_enable_regmap,
 768         .disable                = regulator_disable_regmap,
 769         .set_mode               = tps65910_set_mode,
 770         .get_mode               = tps65910_get_mode,
 771         .get_voltage_sel        = tps65910_get_voltage_dcdc_sel,
 772         .set_voltage_sel        = tps65910_set_voltage_dcdc_sel,
 773         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 774         .list_voltage           = tps65910_list_voltage_dcdc,
 775         .map_voltage            = regulator_map_voltage_ascend,
 776 };
 777
 778 static struct regulator_ops tps65910_ops_vdd3 = {
 779         .is_enabled             = regulator_is_enabled_regmap,
 780         .enable                 = regulator_enable_regmap,
 781         .disable                = regulator_disable_regmap,
 782         .set_mode               = tps65910_set_mode,
 783         .get_mode               = tps65910_get_mode,
 784         .get_voltage            = tps65910_get_voltage_vdd3,
 785         .list_voltage           = regulator_list_voltage_table,
 786         .map_voltage            = regulator_map_voltage_ascend,
 787 };
 788
 789 static struct regulator_ops tps65910_ops_vbb = {
 790         .is_enabled             = regulator_is_enabled_regmap,
 791         .enable                 = regulator_enable_regmap,
 792         .disable                = regulator_disable_regmap,
 793         .set_mode               = tps65910_set_mode,
 794         .get_mode               = tps65910_get_mode,
 795         .get_voltage_sel        = tps65910_get_voltage_sel,
 796         .set_voltage_sel        = tps65910_set_voltage_sel,
 797         .list_voltage           = regulator_list_voltage_table,
 798         .map_voltage            = regulator_map_voltage_iterate,
 799 };
 800
 801 static struct regulator_ops tps65910_ops = {
 802         .is_enabled             = regulator_is_enabled_regmap,
 803         .enable                 = regulator_enable_regmap,
 804         .disable                = regulator_disable_regmap,
 805         .set_mode               = tps65910_set_mode,
 806         .get_mode               = tps65910_get_mode,
 807         .get_voltage_sel        = tps65910_get_voltage_sel,
 808         .set_voltage_sel        = tps65910_set_voltage_sel,
 809         .list_voltage           = regulator_list_voltage_table,
 810         .map_voltage            = regulator_map_voltage_ascend,
 811 };
 812
 813 static struct regulator_ops tps65911_ops = {
 814         .is_enabled             = regulator_is_enabled_regmap,
 815         .enable                 = regulator_enable_regmap,
 816         .disable                = regulator_disable_regmap,
 817         .set_mode               = tps65910_set_mode,
 818         .get_mode               = tps65910_get_mode,
 819         .get_voltage_sel        = tps65911_get_voltage_sel,
 820         .set_voltage_sel        = tps65911_set_voltage_sel,
 821         .list_voltage           = tps65911_list_voltage,
 822         .map_voltage            = regulator_map_voltage_ascend,
 823 };
 824
 825 static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
 826                 int id, int ext_sleep_config)
 827 {
 828         struct tps65910 *mfd = pmic->mfd;
 829         u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
 830         u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
 831         int ret;
 832
 833         /*
 834          * Regulator can not be control from multiple external input EN1, EN2
 835          * and EN3 together.
 836          */
 837         if (ext_sleep_config & EXT_SLEEP_CONTROL) {
 838                 int en_count;
 839                 en_count = ((ext_sleep_config &
 840                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
 841                 en_count += ((ext_sleep_config &
 842                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
 843                 en_count += ((ext_sleep_config &
 844                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
 845                 en_count += ((ext_sleep_config &
 846                                 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
 847                 if (en_count > 1) {
 848                         dev_err(mfd->dev,
 849                                 "External sleep control flag is not proper\n");
 850                         return -EINVAL;
 851                 }
 852         }
 853
 854         pmic->board_ext_control[id] = ext_sleep_config;
 855
 856         /* External EN1 control */
 857         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
 858                 ret = tps65910_reg_set_bits(mfd,
 859                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 860         else
 861                 ret = tps65910_reg_clear_bits(mfd,
 862                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 863         if (ret < 0) {
 864                 dev_err(mfd->dev,
 865                         "Error in configuring external control EN1\n");
 866                 return ret;
 867         }
 868
 869         /* External EN2 control */
 870         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
 871                 ret = tps65910_reg_set_bits(mfd,
 872                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 873         else
 874                 ret = tps65910_reg_clear_bits(mfd,
 875                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 876         if (ret < 0) {
 877                 dev_err(mfd->dev,
 878                         "Error in configuring external control EN2\n");
 879                 return ret;
 880         }
 881
 882         /* External EN3 control for TPS65910 LDO only */
 883         if ((tps65910_chip_id(mfd) == TPS65910) &&
 884                         (id >= TPS65910_REG_VDIG1)) {
 885                 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
 886                         ret = tps65910_reg_set_bits(mfd,
 887                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 888                 else
 889                         ret = tps65910_reg_clear_bits(mfd,
 890                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 891                 if (ret < 0) {
 892                         dev_err(mfd->dev,
 893                                 "Error in configuring external control EN3\n");
 894                         return ret;
 895                 }
 896         }
 897
 898         /* Return if no external control is selected */
 899         if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
 900                 /* Clear all sleep controls */
 901                 ret = tps65910_reg_clear_bits(mfd,
 902                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
 903                 if (!ret)
 904                         ret = tps65910_reg_clear_bits(mfd,
 905                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 906                 if (ret < 0)
 907                         dev_err(mfd->dev,
 908                                 "Error in configuring SLEEP register\n");
 909                 return ret;
 910         }
 911
 912         /*
 913          * For regulator that has separate operational and sleep register make
 914          * sure that operational is used and clear sleep register to turn
 915          * regulator off when external control is inactive
 916          */
 917         if ((id == TPS65910_REG_VDD1) ||
 918                 (id == TPS65910_REG_VDD2) ||
 919                         ((id == TPS65911_REG_VDDCTRL) &&
 920                                 (tps65910_chip_id(mfd) == TPS65911))) {
 921                 int op_reg_add = pmic->get_ctrl_reg(id) + 1;
 922                 int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
 923                 int opvsel, srvsel;
 924
 925                 ret = tps65910_reg_read(pmic->mfd, op_reg_add, &opvsel);
 926                 if (ret < 0)
 927                         return ret;
 928                 ret = tps65910_reg_read(pmic->mfd, sr_reg_add, &srvsel);
 929                 if (ret < 0)
 930                         return ret;
 931
 932                 if (opvsel & VDD1_OP_CMD_MASK) {
 933                         u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
 934
 935                         ret = tps65910_reg_write(pmic->mfd, op_reg_add,
 936                                                  reg_val);
 937                         if (ret < 0) {
 938                                 dev_err(mfd->dev,
 939                                         "Error in configuring op register\n");
 940                                 return ret;
 941                         }
 942                 }
 943                 ret = tps65910_reg_write(pmic->mfd, sr_reg_add, 0);
 944                 if (ret < 0) {
 945                         dev_err(mfd->dev, "Error in setting sr register\n");
 946                         return ret;
 947                 }
 948         }
 949
 950         ret = tps65910_reg_clear_bits(mfd,
 951                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
 952         if (!ret) {
 953                 if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
 954                         ret = tps65910_reg_set_bits(mfd,
 955                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 956                 else
 957                         ret = tps65910_reg_clear_bits(mfd,
 958                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 959         }
 960         if (ret < 0)
 961                 dev_err(mfd->dev,
 962                         "Error in configuring SLEEP register\n");
 963
 964         return ret;
 965 }
 966
 967 #ifdef CONFIG_OF
 968
 969 static struct of_regulator_match tps65910_matches[] = {
 970         { .name = "vrtc",       .driver_data = (void *) &tps65910_regs[0] },
 971         { .name = "vio",        .driver_data = (void *) &tps65910_regs[1] },
 972         { .name = "vdd1",       .driver_data = (void *) &tps65910_regs[2] },
 973         { .name = "vdd2",       .driver_data = (void *) &tps65910_regs[3] },
 974         { .name = "vdd3",       .driver_data = (void *) &tps65910_regs[4] },
 975         { .name = "vdig1",      .driver_data = (void *) &tps65910_regs[5] },
 976         { .name = "vdig2",      .driver_data = (void *) &tps65910_regs[6] },
 977         { .name = "vpll",       .driver_data = (void *) &tps65910_regs[7] },
 978         { .name = "vdac",       .driver_data = (void *) &tps65910_regs[8] },
 979         { .name = "vaux1",      .driver_data = (void *) &tps65910_regs[9] },
 980         { .name = "vaux2",      .driver_data = (void *) &tps65910_regs[10] },
 981         { .name = "vaux33",     .driver_data = (void *) &tps65910_regs[11] },
 982         { .name = "vmmc",       .driver_data = (void *) &tps65910_regs[12] },
 983         { .name = "vbb",        .driver_data = (void *) &tps65910_regs[13] },
 984 };
 985
 986 static struct of_regulator_match tps65911_matches[] = {
 987         { .name = "vrtc",       .driver_data = (void *) &tps65911_regs[0] },
 988         { .name = "vio",        .driver_data = (void *) &tps65911_regs[1] },
 989         { .name = "vdd1",       .driver_data = (void *) &tps65911_regs[2] },
 990         { .name = "vdd2",       .driver_data = (void *) &tps65911_regs[3] },
 991         { .name = "vddctrl",    .driver_data = (void *) &tps65911_regs[4] },
 992         { .name = "ldo1",       .driver_data = (void *) &tps65911_regs[5] },
 993         { .name = "ldo2",       .driver_data = (void *) &tps65911_regs[6] },
 994         { .name = "ldo3",       .driver_data = (void *) &tps65911_regs[7] },
 995         { .name = "ldo4",       .driver_data = (void *) &tps65911_regs[8] },
 996         { .name = "ldo5",       .driver_data = (void *) &tps65911_regs[9] },
 997         { .name = "ldo6",       .driver_data = (void *) &tps65911_regs[10] },
 998         { .name = "ldo7",       .driver_data = (void *) &tps65911_regs[11] },
 999         { .name = "ldo8",       .driver_data = (void *) &tps65911_regs[12] },
1000 };
1001
1002 static struct tps65910_board *tps65910_parse_dt_reg_data(
1003                 struct platform_device *pdev,
1004                 struct of_regulator_match **tps65910_reg_matches)
1005 {
1006         struct tps65910_board *pmic_plat_data;
1007         struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1008         struct device_node *np, *regulators;
1009         struct of_regulator_match *matches;
1010         unsigned int prop;
1011         int idx = 0, ret, count;
1012
1013         pmic_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pmic_plat_data),
1014                                         GFP_KERNEL);
1015         if (!pmic_plat_data)
1016                 return NULL;
1017
1018         np = pdev->dev.parent->of_node;
1019         regulators = of_get_child_by_name(np, "regulators");
1020         if (!regulators) {
1021                 dev_err(&pdev->dev, "regulator node not found\n");
1022                 return NULL;
1023         }
1024
1025         switch (tps65910_chip_id(tps65910)) {
1026         case TPS65910:
1027                 count = ARRAY_SIZE(tps65910_matches);
1028                 matches = tps65910_matches;
1029                 break;
1030         case TPS65911:
1031                 count = ARRAY_SIZE(tps65911_matches);
1032                 matches = tps65911_matches;
1033                 break;
1034         default:
1035                 of_node_put(regulators);
1036                 dev_err(&pdev->dev, "Invalid tps chip version\n");
1037                 return NULL;
1038         }
1039
1040         ret = of_regulator_match(&pdev->dev, regulators, matches, count);
1041         of_node_put(regulators);
1042         if (ret < 0) {
1043                 dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
1044                         ret);
1045                 return NULL;
1046         }
1047
1048         *tps65910_reg_matches = matches;
1049
1050         for (idx = 0; idx < count; idx++) {
1051                 if (!matches[idx].of_node)
1052                         continue;
1053
1054                 pmic_plat_data->tps65910_pmic_init_data[idx] =
1055                                                         matches[idx].init_data;
1056
1057                 ret = of_property_read_u32(matches[idx].of_node,
1058                                 "ti,regulator-ext-sleep-control", &prop);
1059                 if (!ret)
1060                         pmic_plat_data->regulator_ext_sleep_control[idx] = prop;
1061
1062         }
1063
1064         return pmic_plat_data;
1065 }
1066 #else
1067 static inline struct tps65910_board *tps65910_parse_dt_reg_data(
1068                         struct platform_device *pdev,
1069                         struct of_regulator_match **tps65910_reg_matches)
1070 {
1071         *tps65910_reg_matches = NULL;
1072         return NULL;
1073 }
1074 #endif
1075
1076 static int tps65910_probe(struct platform_device *pdev)
1077 {
1078         struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1079         struct regulator_config config = { };
1080         struct tps_info *info;
1081         struct regulator_dev *rdev;
1082         struct tps65910_reg *pmic;
1083         struct tps65910_board *pmic_plat_data;
1084         struct of_regulator_match *tps65910_reg_matches = NULL;
1085         int i, err;
1086
1087         pmic_plat_data = dev_get_platdata(tps65910->dev);
1088         if (!pmic_plat_data && tps65910->dev->of_node)
1089                 pmic_plat_data = tps65910_parse_dt_reg_data(pdev,
1090                                                 &tps65910_reg_matches);
1091
1092         if (!pmic_plat_data) {
1093                 dev_err(&pdev->dev, "Platform data not found\n");
1094                 return -EINVAL;
1095         }
1096
1097         pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1098         if (!pmic)
1099                 return -ENOMEM;
1100
1101         pmic->mfd = tps65910;
1102         platform_set_drvdata(pdev, pmic);
1103
1104         /* Give control of all register to control port */
1105         tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
1106                                 DEVCTRL_SR_CTL_I2C_SEL_MASK);
1107
1108         switch (tps65910_chip_id(tps65910)) {
1109         case TPS65910:
1110                 pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
1111                 pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
1112                 pmic->ext_sleep_control = tps65910_ext_sleep_control;
1113                 info = tps65910_regs;
1114                 break;
1115         case TPS65911:
1116                 pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
1117                 pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
1118                 pmic->ext_sleep_control = tps65911_ext_sleep_control;
1119                 info = tps65911_regs;
1120                 break;
1121         default:
1122                 dev_err(&pdev->dev, "Invalid tps chip version\n");
1123                 return -ENODEV;
1124         }
1125
1126         pmic->desc = devm_kzalloc(&pdev->dev, pmic->num_regulators *
1127                         sizeof(struct regulator_desc), GFP_KERNEL);
1128         if (!pmic->desc)
1129                 return -ENOMEM;
1130
1131         pmic->info = devm_kzalloc(&pdev->dev, pmic->num_regulators *
1132                         sizeof(struct tps_info *), GFP_KERNEL);
1133         if (!pmic->info)
1134                 return -ENOMEM;
1135
1136         pmic->rdev = devm_kzalloc(&pdev->dev, pmic->num_regulators *
1137                         sizeof(struct regulator_dev *), GFP_KERNEL);
1138         if (!pmic->rdev)
1139                 return -ENOMEM;
1140
1141         for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
1142                         i++, info++) {
1143                 /* Register the regulators */
1144                 pmic->info[i] = info;
1145
1146                 pmic->desc[i].name = info->name;
1147                 pmic->desc[i].supply_name = info->vin_name;
1148                 pmic->desc[i].id = i;
1149                 pmic->desc[i].n_voltages = info->n_voltages;
1150                 pmic->desc[i].enable_time = info->enable_time_us;
1151
1152                 if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
1153                         pmic->desc[i].ops = &tps65910_ops_dcdc;
1154                         pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
1155                                                         VDD1_2_NUM_VOLT_COARSE;
1156                         pmic->desc[i].ramp_delay = 12500;
1157                 } else if (i == TPS65910_REG_VDD3) {
1158                         if (tps65910_chip_id(tps65910) == TPS65910) {
1159                                 pmic->desc[i].ops = &tps65910_ops_vdd3;
1160                                 pmic->desc[i].volt_table = info->voltage_table;
1161                         } else {
1162                                 pmic->desc[i].ops = &tps65910_ops_dcdc;
1163                                 pmic->desc[i].ramp_delay = 5000;
1164                         }
1165                 } else if (i == TPS65910_REG_VBB &&
1166                                 tps65910_chip_id(tps65910) == TPS65910) {
1167                         pmic->desc[i].ops = &tps65910_ops_vbb;
1168                         pmic->desc[i].volt_table = info->voltage_table;
1169                 } else {
1170                         if (tps65910_chip_id(tps65910) == TPS65910) {
1171                                 pmic->desc[i].ops = &tps65910_ops;
1172                                 pmic->desc[i].volt_table = info->voltage_table;
1173                         } else {
1174                                 pmic->desc[i].ops = &tps65911_ops;
1175                         }
1176                 }
1177
1178                 err = tps65910_set_ext_sleep_config(pmic, i,
1179                                 pmic_plat_data->regulator_ext_sleep_control[i]);
1180                 /*
1181                  * Failing on regulator for configuring externally control
1182                  * is not a serious issue, just throw warning.
1183                  */
1184                 if (err < 0)
1185                         dev_warn(tps65910->dev,
1186                                 "Failed to initialise ext control config\n");
1187
1188                 pmic->desc[i].type = REGULATOR_VOLTAGE;
1189                 pmic->desc[i].owner = THIS_MODULE;
1190                 pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i);
1191                 pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED;
1192
1193                 config.dev = tps65910->dev;
1194                 config.init_data = pmic_plat_data->tps65910_pmic_init_data[i];
1195                 config.driver_data = pmic;
1196                 config.regmap = tps65910->regmap;
1197
1198                 if (tps65910_reg_matches)
1199                         config.of_node = tps65910_reg_matches[i].of_node;
1200
1201                 rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
1202                                                &config);
1203                 if (IS_ERR(rdev)) {
1204                         dev_err(tps65910->dev,
1205                                 "failed to register %s regulator\n",
1206                                 pdev->name);
1207                         return PTR_ERR(rdev);
1208                 }
1209
1210                 /* Save regulator for cleanup */
1211                 pmic->rdev[i] = rdev;
1212         }
1213         return 0;
1214 }
1215
1216 static void tps65910_shutdown(struct platform_device *pdev)
1217 {
1218         struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1219         int i;
1220
1221         /*
1222          * Before bootloader jumps to kernel, it makes sure that required
1223          * external control signals are in desired state so that given rails
1224          * can be configure accordingly.
1225          * If rails are configured to be controlled from external control
1226          * then before shutting down/rebooting the system, the external
1227          * control configuration need to be remove from the rails so that
1228          * its output will be available as per register programming even
1229          * if external controls are removed. This is require when the POR
1230          * value of the control signals are not in active state and before
1231          * bootloader initializes it, the system requires the rail output
1232          * to be active for booting.
1233          */
1234         for (i = 0; i < pmic->num_regulators; i++) {
1235                 int err;
1236                 if (!pmic->rdev[i])
1237                         continue;
1238
1239                 err = tps65910_set_ext_sleep_config(pmic, i, 0);
1240                 if (err < 0)
1241                         dev_err(&pdev->dev,
1242                                 "Error in clearing external control\n");
1243         }
1244 }
1245
1246 static struct platform_driver tps65910_driver = {
1247         .driver = {
1248                 .name = "tps65910-pmic",
1249         },
1250         .probe = tps65910_probe,
1251         .shutdown = tps65910_shutdown,
1252 };
1253
1254 static int __init tps65910_init(void)
1255 {
1256         return platform_driver_register(&tps65910_driver);
1257 }
1258 subsys_initcall(tps65910_init);
1259
1260 static void __exit tps65910_cleanup(void)
1261 {
1262         platform_driver_unregister(&tps65910_driver);
1263 }
1264 module_exit(tps65910_cleanup);
1265
1266 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1267 MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
1268 MODULE_LICENSE("GPL v2");
1269 MODULE_ALIAS("platform:tps65910-pmic");