drivers/regulator/palmas-regulator.c

   1 /*
   2  * Driver for Regulator part of Palmas PMIC Chips
   3  *
   4  * Copyright 2011-2013 Texas Instruments Inc.
   5  *
   6  * Author: Graeme Gregory <gg@slimlogic.co.uk>
   7  * Author: Ian Lartey <ian@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/regmap.h>
  25 #include <linux/mfd/palmas.h>
  26 #include <linux/of.h>
  27 #include <linux/of_platform.h>
  28 #include <linux/regulator/of_regulator.h>
  29
  30 static const struct regulator_linear_range smps_low_ranges[] = {
  31         REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
  32         REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0),
  33         REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000),
  34         REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0),
  35 };
  36
  37 static const struct regulator_linear_range smps_high_ranges[] = {
  38         REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
  39         REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0),
  40         REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000),
  41         REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0),
  42 };
  43
  44 static struct palmas_regs_info palmas_generic_regs_info[] = {
  45         {
  46                 .name           = "SMPS12",
  47                 .sname          = "smps1-in",
  48                 .vsel_addr      = PALMAS_SMPS12_VOLTAGE,
  49                 .ctrl_addr      = PALMAS_SMPS12_CTRL,
  50                 .tstep_addr     = PALMAS_SMPS12_TSTEP,
  51                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
  52         },
  53         {
  54                 .name           = "SMPS123",
  55                 .sname          = "smps1-in",
  56                 .vsel_addr      = PALMAS_SMPS12_VOLTAGE,
  57                 .ctrl_addr      = PALMAS_SMPS12_CTRL,
  58                 .tstep_addr     = PALMAS_SMPS12_TSTEP,
  59                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
  60         },
  61         {
  62                 .name           = "SMPS3",
  63                 .sname          = "smps3-in",
  64                 .vsel_addr      = PALMAS_SMPS3_VOLTAGE,
  65                 .ctrl_addr      = PALMAS_SMPS3_CTRL,
  66                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS3,
  67         },
  68         {
  69                 .name           = "SMPS45",
  70                 .sname          = "smps4-in",
  71                 .vsel_addr      = PALMAS_SMPS45_VOLTAGE,
  72                 .ctrl_addr      = PALMAS_SMPS45_CTRL,
  73                 .tstep_addr     = PALMAS_SMPS45_TSTEP,
  74                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
  75         },
  76         {
  77                 .name           = "SMPS457",
  78                 .sname          = "smps4-in",
  79                 .vsel_addr      = PALMAS_SMPS45_VOLTAGE,
  80                 .ctrl_addr      = PALMAS_SMPS45_CTRL,
  81                 .tstep_addr     = PALMAS_SMPS45_TSTEP,
  82                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
  83         },
  84         {
  85                 .name           = "SMPS6",
  86                 .sname          = "smps6-in",
  87                 .vsel_addr      = PALMAS_SMPS6_VOLTAGE,
  88                 .ctrl_addr      = PALMAS_SMPS6_CTRL,
  89                 .tstep_addr     = PALMAS_SMPS6_TSTEP,
  90                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS6,
  91         },
  92         {
  93                 .name           = "SMPS7",
  94                 .sname          = "smps7-in",
  95                 .vsel_addr      = PALMAS_SMPS7_VOLTAGE,
  96                 .ctrl_addr      = PALMAS_SMPS7_CTRL,
  97                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS7,
  98         },
  99         {
 100                 .name           = "SMPS8",
 101                 .sname          = "smps8-in",
 102                 .vsel_addr      = PALMAS_SMPS8_VOLTAGE,
 103                 .ctrl_addr      = PALMAS_SMPS8_CTRL,
 104                 .tstep_addr     = PALMAS_SMPS8_TSTEP,
 105                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS8,
 106         },
 107         {
 108                 .name           = "SMPS9",
 109                 .sname          = "smps9-in",
 110                 .vsel_addr      = PALMAS_SMPS9_VOLTAGE,
 111                 .ctrl_addr      = PALMAS_SMPS9_CTRL,
 112                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS9,
 113         },
 114         {
 115                 .name           = "SMPS10_OUT2",
 116                 .sname          = "smps10-in",
 117                 .ctrl_addr      = PALMAS_SMPS10_CTRL,
 118                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
 119         },
 120         {
 121                 .name           = "SMPS10_OUT1",
 122                 .sname          = "smps10-out2",
 123                 .ctrl_addr      = PALMAS_SMPS10_CTRL,
 124                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
 125         },
 126         {
 127                 .name           = "LDO1",
 128                 .sname          = "ldo1-in",
 129                 .vsel_addr      = PALMAS_LDO1_VOLTAGE,
 130                 .ctrl_addr      = PALMAS_LDO1_CTRL,
 131                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO1,
 132         },
 133         {
 134                 .name           = "LDO2",
 135                 .sname          = "ldo2-in",
 136                 .vsel_addr      = PALMAS_LDO2_VOLTAGE,
 137                 .ctrl_addr      = PALMAS_LDO2_CTRL,
 138                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO2,
 139         },
 140         {
 141                 .name           = "LDO3",
 142                 .sname          = "ldo3-in",
 143                 .vsel_addr      = PALMAS_LDO3_VOLTAGE,
 144                 .ctrl_addr      = PALMAS_LDO3_CTRL,
 145                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO3,
 146         },
 147         {
 148                 .name           = "LDO4",
 149                 .sname          = "ldo4-in",
 150                 .vsel_addr      = PALMAS_LDO4_VOLTAGE,
 151                 .ctrl_addr      = PALMAS_LDO4_CTRL,
 152                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO4,
 153         },
 154         {
 155                 .name           = "LDO5",
 156                 .sname          = "ldo5-in",
 157                 .vsel_addr      = PALMAS_LDO5_VOLTAGE,
 158                 .ctrl_addr      = PALMAS_LDO5_CTRL,
 159                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO5,
 160         },
 161         {
 162                 .name           = "LDO6",
 163                 .sname          = "ldo6-in",
 164                 .vsel_addr      = PALMAS_LDO6_VOLTAGE,
 165                 .ctrl_addr      = PALMAS_LDO6_CTRL,
 166                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO6,
 167         },
 168         {
 169                 .name           = "LDO7",
 170                 .sname          = "ldo7-in",
 171                 .vsel_addr      = PALMAS_LDO7_VOLTAGE,
 172                 .ctrl_addr      = PALMAS_LDO7_CTRL,
 173                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO7,
 174         },
 175         {
 176                 .name           = "LDO8",
 177                 .sname          = "ldo8-in",
 178                 .vsel_addr      = PALMAS_LDO8_VOLTAGE,
 179                 .ctrl_addr      = PALMAS_LDO8_CTRL,
 180                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO8,
 181         },
 182         {
 183                 .name           = "LDO9",
 184                 .sname          = "ldo9-in",
 185                 .vsel_addr      = PALMAS_LDO9_VOLTAGE,
 186                 .ctrl_addr      = PALMAS_LDO9_CTRL,
 187                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDO9,
 188         },
 189         {
 190                 .name           = "LDOLN",
 191                 .sname          = "ldoln-in",
 192                 .vsel_addr      = PALMAS_LDOLN_VOLTAGE,
 193                 .ctrl_addr      = PALMAS_LDOLN_CTRL,
 194                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDOLN,
 195         },
 196         {
 197                 .name           = "LDOUSB",
 198                 .sname          = "ldousb-in",
 199                 .vsel_addr      = PALMAS_LDOUSB_VOLTAGE,
 200                 .ctrl_addr      = PALMAS_LDOUSB_CTRL,
 201                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB,
 202         },
 203         {
 204                 .name           = "REGEN1",
 205                 .ctrl_addr      = PALMAS_REGEN1_CTRL,
 206                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_REGEN1,
 207         },
 208         {
 209                 .name           = "REGEN2",
 210                 .ctrl_addr      = PALMAS_REGEN2_CTRL,
 211                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_REGEN2,
 212         },
 213         {
 214                 .name           = "REGEN3",
 215                 .ctrl_addr      = PALMAS_REGEN3_CTRL,
 216                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_REGEN3,
 217         },
 218         {
 219                 .name           = "SYSEN1",
 220                 .ctrl_addr      = PALMAS_SYSEN1_CTRL,
 221                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1,
 222         },
 223         {
 224                 .name           = "SYSEN2",
 225                 .ctrl_addr      = PALMAS_SYSEN2_CTRL,
 226                 .sleep_id       = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2,
 227         },
 228 };
 229
 230 static struct palmas_regs_info tps65917_regs_info[] = {
 231         {
 232                 .name           = "SMPS1",
 233                 .sname          = "smps1-in",
 234                 .vsel_addr      = TPS65917_SMPS1_VOLTAGE,
 235                 .ctrl_addr      = TPS65917_SMPS1_CTRL,
 236                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_SMPS1,
 237         },
 238         {
 239                 .name           = "SMPS2",
 240                 .sname          = "smps2-in",
 241                 .vsel_addr      = TPS65917_SMPS2_VOLTAGE,
 242                 .ctrl_addr      = TPS65917_SMPS2_CTRL,
 243                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_SMPS2,
 244         },
 245         {
 246                 .name           = "SMPS3",
 247                 .sname          = "smps3-in",
 248                 .vsel_addr      = TPS65917_SMPS3_VOLTAGE,
 249                 .ctrl_addr      = TPS65917_SMPS3_CTRL,
 250                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_SMPS3,
 251         },
 252         {
 253                 .name           = "SMPS4",
 254                 .sname          = "smps4-in",
 255                 .vsel_addr      = TPS65917_SMPS4_VOLTAGE,
 256                 .ctrl_addr      = TPS65917_SMPS4_CTRL,
 257                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_SMPS4,
 258         },
 259         {
 260                 .name           = "SMPS5",
 261                 .sname          = "smps5-in",
 262                 .vsel_addr      = TPS65917_SMPS5_VOLTAGE,
 263                 .ctrl_addr      = TPS65917_SMPS5_CTRL,
 264                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_SMPS5,
 265         },
 266         {
 267                 .name           = "LDO1",
 268                 .sname          = "ldo1-in",
 269                 .vsel_addr      = TPS65917_LDO1_VOLTAGE,
 270                 .ctrl_addr      = TPS65917_LDO1_CTRL,
 271                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_LDO1,
 272         },
 273         {
 274                 .name           = "LDO2",
 275                 .sname          = "ldo2-in",
 276                 .vsel_addr      = TPS65917_LDO2_VOLTAGE,
 277                 .ctrl_addr      = TPS65917_LDO2_CTRL,
 278                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_LDO2,
 279         },
 280         {
 281                 .name           = "LDO3",
 282                 .sname          = "ldo3-in",
 283                 .vsel_addr      = TPS65917_LDO3_VOLTAGE,
 284                 .ctrl_addr      = TPS65917_LDO3_CTRL,
 285                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_LDO3,
 286         },
 287         {
 288                 .name           = "LDO4",
 289                 .sname          = "ldo4-in",
 290                 .vsel_addr      = TPS65917_LDO4_VOLTAGE,
 291                 .ctrl_addr      = TPS65917_LDO4_CTRL,
 292                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_LDO4,
 293         },
 294         {
 295                 .name           = "LDO5",
 296                 .sname          = "ldo5-in",
 297                 .vsel_addr      = TPS65917_LDO5_VOLTAGE,
 298                 .ctrl_addr      = TPS65917_LDO5_CTRL,
 299                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_LDO5,
 300         },
 301         {
 302                 .name           = "REGEN1",
 303                 .ctrl_addr      = TPS65917_REGEN1_CTRL,
 304                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_REGEN1,
 305         },
 306         {
 307                 .name           = "REGEN2",
 308                 .ctrl_addr      = TPS65917_REGEN2_CTRL,
 309                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_REGEN2,
 310         },
 311         {
 312                 .name           = "REGEN3",
 313                 .ctrl_addr      = TPS65917_REGEN3_CTRL,
 314                 .sleep_id       = TPS65917_EXTERNAL_REQSTR_ID_REGEN3,
 315         },
 316 };
 317
 318 #define EXTERNAL_REQUESTOR(_id, _offset, _pos)          \
 319         [PALMAS_EXTERNAL_REQSTR_ID_##_id] = {           \
 320                 .id = PALMAS_EXTERNAL_REQSTR_ID_##_id,  \
 321                 .reg_offset = _offset,                  \
 322                 .bit_pos = _pos,                        \
 323         }
 324
 325 static struct palmas_sleep_requestor_info palma_sleep_req_info[] = {
 326         EXTERNAL_REQUESTOR(REGEN1, 0, 0),
 327         EXTERNAL_REQUESTOR(REGEN2, 0, 1),
 328         EXTERNAL_REQUESTOR(SYSEN1, 0, 2),
 329         EXTERNAL_REQUESTOR(SYSEN2, 0, 3),
 330         EXTERNAL_REQUESTOR(CLK32KG, 0, 4),
 331         EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5),
 332         EXTERNAL_REQUESTOR(REGEN3, 0, 6),
 333         EXTERNAL_REQUESTOR(SMPS12, 1, 0),
 334         EXTERNAL_REQUESTOR(SMPS3, 1, 1),
 335         EXTERNAL_REQUESTOR(SMPS45, 1, 2),
 336         EXTERNAL_REQUESTOR(SMPS6, 1, 3),
 337         EXTERNAL_REQUESTOR(SMPS7, 1, 4),
 338         EXTERNAL_REQUESTOR(SMPS8, 1, 5),
 339         EXTERNAL_REQUESTOR(SMPS9, 1, 6),
 340         EXTERNAL_REQUESTOR(SMPS10, 1, 7),
 341         EXTERNAL_REQUESTOR(LDO1, 2, 0),
 342         EXTERNAL_REQUESTOR(LDO2, 2, 1),
 343         EXTERNAL_REQUESTOR(LDO3, 2, 2),
 344         EXTERNAL_REQUESTOR(LDO4, 2, 3),
 345         EXTERNAL_REQUESTOR(LDO5, 2, 4),
 346         EXTERNAL_REQUESTOR(LDO6, 2, 5),
 347         EXTERNAL_REQUESTOR(LDO7, 2, 6),
 348         EXTERNAL_REQUESTOR(LDO8, 2, 7),
 349         EXTERNAL_REQUESTOR(LDO9, 3, 0),
 350         EXTERNAL_REQUESTOR(LDOLN, 3, 1),
 351         EXTERNAL_REQUESTOR(LDOUSB, 3, 2),
 352 };
 353
 354 #define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos)         \
 355         [TPS65917_EXTERNAL_REQSTR_ID_##_id] = {         \
 356                 .id = TPS65917_EXTERNAL_REQSTR_ID_##_id,        \
 357                 .reg_offset = _offset,                  \
 358                 .bit_pos = _pos,                        \
 359         }
 360
 361 static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = {
 362         EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0),
 363         EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1),
 364         EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6),
 365         EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0),
 366         EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1),
 367         EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2),
 368         EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3),
 369         EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4),
 370         EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0),
 371         EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1),
 372         EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2),
 373         EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3),
 374         EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4),
 375 };
 376
 377 static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500};
 378
 379 #define SMPS_CTRL_MODE_OFF              0x00
 380 #define SMPS_CTRL_MODE_ON               0x01
 381 #define SMPS_CTRL_MODE_ECO              0x02
 382 #define SMPS_CTRL_MODE_PWM              0x03
 383
 384 #define PALMAS_SMPS_NUM_VOLTAGES        122
 385 #define PALMAS_SMPS10_NUM_VOLTAGES      2
 386 #define PALMAS_LDO_NUM_VOLTAGES         50
 387
 388 #define SMPS10_VSEL                     (1<<3)
 389 #define SMPS10_BOOST_EN                 (1<<2)
 390 #define SMPS10_BYPASS_EN                (1<<1)
 391 #define SMPS10_SWITCH_EN                (1<<0)
 392
 393 #define REGULATOR_SLAVE                 0
 394
 395 static int palmas_smps_read(struct palmas *palmas, unsigned int reg,
 396                 unsigned int *dest)
 397 {
 398         unsigned int addr;
 399
 400         addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
 401
 402         return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
 403 }
 404
 405 static int palmas_smps_write(struct palmas *palmas, unsigned int reg,
 406                 unsigned int value)
 407 {
 408         unsigned int addr;
 409
 410         addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg);
 411
 412         return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
 413 }
 414
 415 static int palmas_ldo_read(struct palmas *palmas, unsigned int reg,
 416                 unsigned int *dest)
 417 {
 418         unsigned int addr;
 419
 420         addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
 421
 422         return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest);
 423 }
 424
 425 static int palmas_ldo_write(struct palmas *palmas, unsigned int reg,
 426                 unsigned int value)
 427 {
 428         unsigned int addr;
 429
 430         addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg);
 431
 432         return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value);
 433 }
 434
 435 static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode)
 436 {
 437         int id = rdev_get_id(dev);
 438         int ret;
 439         struct palmas_pmic *pmic = rdev_get_drvdata(dev);
 440         struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
 441         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 442         unsigned int reg;
 443         bool rail_enable = true;
 444
 445         ret = palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, &reg);
 446         if (ret)
 447                 return ret;
 448
 449         reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
 450
 451         if (reg == SMPS_CTRL_MODE_OFF)
 452                 rail_enable = false;
 453
 454         switch (mode) {
 455         case REGULATOR_MODE_NORMAL:
 456                 reg |= SMPS_CTRL_MODE_ON;
 457                 break;
 458         case REGULATOR_MODE_IDLE:
 459                 reg |= SMPS_CTRL_MODE_ECO;
 460                 break;
 461         case REGULATOR_MODE_FAST:
 462                 reg |= SMPS_CTRL_MODE_PWM;
 463                 break;
 464         default:
 465                 return -EINVAL;
 466         }
 467
 468         pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
 469         if (rail_enable)
 470                 palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg);
 471
 472         /* Switch the enable value to ensure this is used for enable */
 473         pmic->desc[id].enable_val = pmic->current_reg_mode[id];
 474
 475         return 0;
 476 }
 477
 478 static unsigned int palmas_get_mode_smps(struct regulator_dev *dev)
 479 {
 480         struct palmas_pmic *pmic = rdev_get_drvdata(dev);
 481         int id = rdev_get_id(dev);
 482         unsigned int reg;
 483
 484         reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
 485
 486         switch (reg) {
 487         case SMPS_CTRL_MODE_ON:
 488                 return REGULATOR_MODE_NORMAL;
 489         case SMPS_CTRL_MODE_ECO:
 490                 return REGULATOR_MODE_IDLE;
 491         case SMPS_CTRL_MODE_PWM:
 492                 return REGULATOR_MODE_FAST;
 493         }
 494
 495         return 0;
 496 }
 497
 498 static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev,
 499                  int ramp_delay)
 500 {
 501         int id = rdev_get_id(rdev);
 502         struct palmas_pmic *pmic = rdev_get_drvdata(rdev);
 503         struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
 504         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 505         unsigned int reg = 0;
 506         int ret;
 507
 508         /* SMPS3 and SMPS7 do not have tstep_addr setting */
 509         switch (id) {
 510         case PALMAS_REG_SMPS3:
 511         case PALMAS_REG_SMPS7:
 512                 return 0;
 513         }
 514
 515         if (ramp_delay <= 0)
 516                 reg = 0;
 517         else if (ramp_delay <= 2500)
 518                 reg = 3;
 519         else if (ramp_delay <= 5000)
 520                 reg = 2;
 521         else
 522                 reg = 1;
 523
 524         ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg);
 525         if (ret < 0) {
 526                 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret);
 527                 return ret;
 528         }
 529
 530         pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg];
 531         return ret;
 532 }
 533
 534 static struct regulator_ops palmas_ops_smps = {
 535         .is_enabled             = regulator_is_enabled_regmap,
 536         .enable                 = regulator_enable_regmap,
 537         .disable                = regulator_disable_regmap,
 538         .set_mode               = palmas_set_mode_smps,
 539         .get_mode               = palmas_get_mode_smps,
 540         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 541         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 542         .list_voltage           = regulator_list_voltage_linear_range,
 543         .map_voltage            = regulator_map_voltage_linear_range,
 544         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 545         .set_ramp_delay         = palmas_smps_set_ramp_delay,
 546 };
 547
 548 static struct regulator_ops palmas_ops_ext_control_smps = {
 549         .set_mode               = palmas_set_mode_smps,
 550         .get_mode               = palmas_get_mode_smps,
 551         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 552         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 553         .list_voltage           = regulator_list_voltage_linear_range,
 554         .map_voltage            = regulator_map_voltage_linear_range,
 555         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 556         .set_ramp_delay         = palmas_smps_set_ramp_delay,
 557 };
 558
 559 static struct regulator_ops palmas_ops_smps10 = {
 560         .is_enabled             = regulator_is_enabled_regmap,
 561         .enable                 = regulator_enable_regmap,
 562         .disable                = regulator_disable_regmap,
 563         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 564         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 565         .list_voltage           = regulator_list_voltage_linear,
 566         .map_voltage            = regulator_map_voltage_linear,
 567         .set_bypass             = regulator_set_bypass_regmap,
 568         .get_bypass             = regulator_get_bypass_regmap,
 569 };
 570
 571 static struct regulator_ops tps65917_ops_smps = {
 572         .is_enabled             = regulator_is_enabled_regmap,
 573         .enable                 = regulator_enable_regmap,
 574         .disable                = regulator_disable_regmap,
 575         .set_mode               = palmas_set_mode_smps,
 576         .get_mode               = palmas_get_mode_smps,
 577         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 578         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 579         .list_voltage           = regulator_list_voltage_linear_range,
 580         .map_voltage            = regulator_map_voltage_linear_range,
 581         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 582 };
 583
 584 static struct regulator_ops tps65917_ops_ext_control_smps = {
 585         .set_mode               = palmas_set_mode_smps,
 586         .get_mode               = palmas_get_mode_smps,
 587         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 588         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 589         .list_voltage           = regulator_list_voltage_linear_range,
 590         .map_voltage            = regulator_map_voltage_linear_range,
 591 };
 592
 593 static int palmas_is_enabled_ldo(struct regulator_dev *dev)
 594 {
 595         int id = rdev_get_id(dev);
 596         struct palmas_pmic *pmic = rdev_get_drvdata(dev);
 597         struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
 598         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 599         unsigned int reg;
 600
 601         palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, &reg);
 602
 603         reg &= PALMAS_LDO1_CTRL_STATUS;
 604
 605         return !!(reg);
 606 }
 607
 608 static struct regulator_ops palmas_ops_ldo = {
 609         .is_enabled             = palmas_is_enabled_ldo,
 610         .enable                 = regulator_enable_regmap,
 611         .disable                = regulator_disable_regmap,
 612         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 613         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 614         .list_voltage           = regulator_list_voltage_linear,
 615         .map_voltage            = regulator_map_voltage_linear,
 616 };
 617
 618 static struct regulator_ops palmas_ops_ext_control_ldo = {
 619         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 620         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 621         .list_voltage           = regulator_list_voltage_linear,
 622         .map_voltage            = regulator_map_voltage_linear,
 623 };
 624
 625 static struct regulator_ops palmas_ops_extreg = {
 626         .is_enabled             = regulator_is_enabled_regmap,
 627         .enable                 = regulator_enable_regmap,
 628         .disable                = regulator_disable_regmap,
 629 };
 630
 631 static struct regulator_ops palmas_ops_ext_control_extreg = {
 632 };
 633
 634 static struct regulator_ops tps65917_ops_ldo = {
 635         .is_enabled             = palmas_is_enabled_ldo,
 636         .enable                 = regulator_enable_regmap,
 637         .disable                = regulator_disable_regmap,
 638         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 639         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 640         .list_voltage           = regulator_list_voltage_linear,
 641         .map_voltage            = regulator_map_voltage_linear,
 642         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 643 };
 644
 645 static int palmas_regulator_config_external(struct palmas *palmas, int id,
 646                 struct palmas_reg_init *reg_init)
 647 {
 648         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 649         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 650         int ret;
 651
 652         ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id,
 653                                             reg_init->roof_floor, true);
 654         if (ret < 0)
 655                 dev_err(palmas->dev,
 656                         "Ext control config for regulator %d failed %d\n",
 657                         id, ret);
 658         return ret;
 659 }
 660
 661 /*
 662  * setup the hardware based sleep configuration of the SMPS/LDO regulators
 663  * from the platform data. This is different to the software based control
 664  * supported by the regulator framework as it is controlled by toggling
 665  * pins on the PMIC such as PREQ, SYSEN, ...
 666  */
 667 static int palmas_smps_init(struct palmas *palmas, int id,
 668                 struct palmas_reg_init *reg_init)
 669 {
 670         unsigned int reg;
 671         int ret;
 672         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 673         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 674         unsigned int addr = rinfo->ctrl_addr;
 675
 676         ret = palmas_smps_read(palmas, addr, &reg);
 677         if (ret)
 678                 return ret;
 679
 680         switch (id) {
 681         case PALMAS_REG_SMPS10_OUT1:
 682         case PALMAS_REG_SMPS10_OUT2:
 683                 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK;
 684                 if (reg_init->mode_sleep)
 685                         reg |= reg_init->mode_sleep <<
 686                                         PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT;
 687                 break;
 688         default:
 689                 if (reg_init->warm_reset)
 690                         reg |= PALMAS_SMPS12_CTRL_WR_S;
 691                 else
 692                         reg &= ~PALMAS_SMPS12_CTRL_WR_S;
 693
 694                 if (reg_init->roof_floor)
 695                         reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
 696                 else
 697                         reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
 698
 699                 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK;
 700                 if (reg_init->mode_sleep)
 701                         reg |= reg_init->mode_sleep <<
 702                                         PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT;
 703         }
 704
 705         ret = palmas_smps_write(palmas, addr, reg);
 706         if (ret)
 707                 return ret;
 708
 709         if (rinfo->vsel_addr && reg_init->vsel) {
 710
 711                 reg = reg_init->vsel;
 712
 713                 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg);
 714                 if (ret)
 715                         return ret;
 716         }
 717
 718         if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
 719                         (id != PALMAS_REG_SMPS10_OUT2)) {
 720                 /* Enable externally controlled regulator */
 721                 ret = palmas_smps_read(palmas, addr, &reg);
 722                 if (ret < 0)
 723                         return ret;
 724
 725                 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
 726                         reg |= SMPS_CTRL_MODE_ON;
 727                         ret = palmas_smps_write(palmas, addr, reg);
 728                         if (ret < 0)
 729                                 return ret;
 730                 }
 731                 return palmas_regulator_config_external(palmas, id, reg_init);
 732         }
 733         return 0;
 734 }
 735
 736 static int palmas_ldo_init(struct palmas *palmas, int id,
 737                 struct palmas_reg_init *reg_init)
 738 {
 739         unsigned int reg;
 740         unsigned int addr;
 741         int ret;
 742         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 743         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 744
 745         addr = rinfo->ctrl_addr;
 746
 747         ret = palmas_ldo_read(palmas, addr, &reg);
 748         if (ret)
 749                 return ret;
 750
 751         if (reg_init->warm_reset)
 752                 reg |= PALMAS_LDO1_CTRL_WR_S;
 753         else
 754                 reg &= ~PALMAS_LDO1_CTRL_WR_S;
 755
 756         if (reg_init->mode_sleep)
 757                 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
 758         else
 759                 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP;
 760
 761         ret = palmas_ldo_write(palmas, addr, reg);
 762         if (ret)
 763                 return ret;
 764
 765         if (reg_init->roof_floor) {
 766                 /* Enable externally controlled regulator */
 767                 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
 768                                 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
 769                                 PALMAS_LDO1_CTRL_MODE_ACTIVE);
 770                 if (ret < 0) {
 771                         dev_err(palmas->dev,
 772                                 "LDO Register 0x%02x update failed %d\n",
 773                                 addr, ret);
 774                         return ret;
 775                 }
 776                 return palmas_regulator_config_external(palmas, id, reg_init);
 777         }
 778         return 0;
 779 }
 780
 781 static int palmas_extreg_init(struct palmas *palmas, int id,
 782                 struct palmas_reg_init *reg_init)
 783 {
 784         unsigned int addr;
 785         int ret;
 786         unsigned int val = 0;
 787         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 788         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 789
 790         addr = rinfo->ctrl_addr;
 791
 792         if (reg_init->mode_sleep)
 793                 val = PALMAS_REGEN1_CTRL_MODE_SLEEP;
 794
 795         ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
 796                         addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val);
 797         if (ret < 0) {
 798                 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
 799                         addr, ret);
 800                 return ret;
 801         }
 802
 803         if (reg_init->roof_floor) {
 804                 /* Enable externally controlled regulator */
 805                 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
 806                                 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
 807                                 PALMAS_REGEN1_CTRL_MODE_ACTIVE);
 808                 if (ret < 0) {
 809                         dev_err(palmas->dev,
 810                                 "Resource Register 0x%02x update failed %d\n",
 811                                 addr, ret);
 812                         return ret;
 813                 }
 814                 return palmas_regulator_config_external(palmas, id, reg_init);
 815         }
 816         return 0;
 817 }
 818
 819 static void palmas_enable_ldo8_track(struct palmas *palmas)
 820 {
 821         unsigned int reg;
 822         unsigned int addr;
 823         int ret;
 824         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 825         struct palmas_regs_info *rinfo;
 826
 827         rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8];
 828         addr = rinfo->ctrl_addr;
 829
 830         ret = palmas_ldo_read(palmas, addr, &reg);
 831         if (ret) {
 832                 dev_err(palmas->dev, "Error in reading ldo8 control reg\n");
 833                 return;
 834         }
 835
 836         reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN;
 837         ret = palmas_ldo_write(palmas, addr, reg);
 838         if (ret < 0) {
 839                 dev_err(palmas->dev, "Error in enabling tracking mode\n");
 840                 return;
 841         }
 842         /*
 843          * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
 844          * output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
 845          * and can be set from 0.45 to 1.65 V.
 846          */
 847         addr = rinfo->vsel_addr;
 848         ret = palmas_ldo_read(palmas, addr, &reg);
 849         if (ret) {
 850                 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n");
 851                 return;
 852         }
 853
 854         reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK;
 855         ret = palmas_ldo_write(palmas, addr, reg);
 856         if (ret < 0)
 857                 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n");
 858
 859         return;
 860 }
 861
 862 static int palmas_ldo_registration(struct palmas_pmic *pmic,
 863                                    struct palmas_pmic_driver_data *ddata,
 864                                    struct palmas_pmic_platform_data *pdata,
 865                                    const char *pdev_name,
 866                                    struct regulator_config config)
 867 {
 868         int id, ret;
 869         struct regulator_dev *rdev;
 870         struct palmas_reg_init *reg_init;
 871         struct palmas_regs_info *rinfo;
 872         struct regulator_desc *desc;
 873
 874         for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
 875                 if (pdata && pdata->reg_init[id])
 876                         reg_init = pdata->reg_init[id];
 877                 else
 878                         reg_init = NULL;
 879
 880                 rinfo = &ddata->palmas_regs_info[id];
 881                 /* Miss out regulators which are not available due
 882                  * to alternate functions.
 883                  */
 884
 885                 /* Register the regulators */
 886                 desc = &pmic->desc[id];
 887                 desc->name = rinfo->name;
 888                 desc->id = id;
 889                 desc->type = REGULATOR_VOLTAGE;
 890                 desc->owner = THIS_MODULE;
 891
 892                 if (id < PALMAS_REG_REGEN1) {
 893                         desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
 894                         if (reg_init && reg_init->roof_floor)
 895                                 desc->ops = &palmas_ops_ext_control_ldo;
 896                         else
 897                                 desc->ops = &palmas_ops_ldo;
 898                         desc->min_uV = 900000;
 899                         desc->uV_step = 50000;
 900                         desc->linear_min_sel = 1;
 901                         desc->enable_time = 500;
 902                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
 903                                                             rinfo->vsel_addr);
 904                         desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
 905                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
 906                                                               rinfo->ctrl_addr);
 907                         desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
 908
 909                         /* Check if LDO8 is in tracking mode or not */
 910                         if (pdata && (id == PALMAS_REG_LDO8) &&
 911                             pdata->enable_ldo8_tracking) {
 912                                 palmas_enable_ldo8_track(pmic->palmas);
 913                                 desc->min_uV = 450000;
 914                                 desc->uV_step = 25000;
 915                         }
 916
 917                         /* LOD6 in vibrator mode will have enable time 2000us */
 918                         if (pdata && pdata->ldo6_vibrator &&
 919                             (id == PALMAS_REG_LDO6))
 920                                 desc->enable_time = 2000;
 921                 } else {
 922                         if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
 923                                 continue;
 924
 925                         desc->n_voltages = 1;
 926                         if (reg_init && reg_init->roof_floor)
 927                                 desc->ops = &palmas_ops_ext_control_extreg;
 928                         else
 929                                 desc->ops = &palmas_ops_extreg;
 930                         desc->enable_reg =
 931                                         PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
 932                                                            rinfo->ctrl_addr);
 933                         desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
 934                 }
 935
 936                 if (pdata)
 937                         config.init_data = pdata->reg_data[id];
 938                 else
 939                         config.init_data = NULL;
 940
 941                 desc->supply_name = rinfo->sname;
 942                 config.of_node = ddata->palmas_matches[id].of_node;
 943
 944                 rdev = devm_regulator_register(pmic->dev, desc, &config);
 945                 if (IS_ERR(rdev)) {
 946                         dev_err(pmic->dev,
 947                                 "failed to register %s regulator\n",
 948                                 pdev_name);
 949                         return PTR_ERR(rdev);
 950                 }
 951
 952                 /* Save regulator for cleanup */
 953                 pmic->rdev[id] = rdev;
 954
 955                 /* Initialise sleep/init values from platform data */
 956                 if (pdata) {
 957                         reg_init = pdata->reg_init[id];
 958                         if (reg_init) {
 959                                 if (id <= ddata->ldo_end)
 960                                         ret = palmas_ldo_init(pmic->palmas, id,
 961                                                               reg_init);
 962                                 else
 963                                         ret = palmas_extreg_init(pmic->palmas,
 964                                                                  id, reg_init);
 965                                 if (ret)
 966                                         return ret;
 967                         }
 968                 }
 969         }
 970
 971         return 0;
 972 }
 973
 974 static int tps65917_ldo_registration(struct palmas_pmic *pmic,
 975                                      struct palmas_pmic_driver_data *ddata,
 976                                      struct palmas_pmic_platform_data *pdata,
 977                                      const char *pdev_name,
 978                                      struct regulator_config config)
 979 {
 980         int id, ret;
 981         struct regulator_dev *rdev;
 982         struct palmas_reg_init *reg_init;
 983         struct palmas_regs_info *rinfo;
 984         struct regulator_desc *desc;
 985
 986         for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
 987                 if (pdata && pdata->reg_init[id])
 988                         reg_init = pdata->reg_init[id];
 989                 else
 990                         reg_init = NULL;
 991
 992                 /* Miss out regulators which are not available due
 993                  * to alternate functions.
 994                  */
 995                 rinfo = &ddata->palmas_regs_info[id];
 996
 997                 /* Register the regulators */
 998                 desc = &pmic->desc[id];
 999                 desc->name = rinfo->name;
1000                 desc->id = id;
1001                 desc->type = REGULATOR_VOLTAGE;
1002                 desc->owner = THIS_MODULE;
1003
1004                 if (id < TPS65917_REG_REGEN1) {
1005                         desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
1006                         if (reg_init && reg_init->roof_floor)
1007                                 desc->ops = &palmas_ops_ext_control_ldo;
1008                         else
1009                                 desc->ops = &tps65917_ops_ldo;
1010                         desc->min_uV = 900000;
1011                         desc->uV_step = 50000;
1012                         desc->linear_min_sel = 1;
1013                         desc->enable_time = 500;
1014                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1015                                                             rinfo->vsel_addr);
1016                         desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
1017                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1018                                                               rinfo->ctrl_addr);
1019                         desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
1020                         /*
1021                          * To be confirmed. Discussion on going with PMIC Team.
1022                          * It is of the order of ~60mV/uS.
1023                          */
1024                         desc->ramp_delay = 2500;
1025                 } else {
1026                         desc->n_voltages = 1;
1027                         if (reg_init && reg_init->roof_floor)
1028                                 desc->ops = &palmas_ops_ext_control_extreg;
1029                         else
1030                                 desc->ops = &palmas_ops_extreg;
1031                         desc->enable_reg =
1032                                         PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
1033                                                            rinfo->ctrl_addr);
1034                         desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
1035                 }
1036
1037                 if (pdata)
1038                         config.init_data = pdata->reg_data[id];
1039                 else
1040                         config.init_data = NULL;
1041
1042                 desc->supply_name = rinfo->sname;
1043                 config.of_node = ddata->palmas_matches[id].of_node;
1044
1045                 rdev = devm_regulator_register(pmic->dev, desc, &config);
1046                 if (IS_ERR(rdev)) {
1047                         dev_err(pmic->dev,
1048                                 "failed to register %s regulator\n",
1049                                 pdev_name);
1050                         return PTR_ERR(rdev);
1051                 }
1052
1053                 /* Save regulator for cleanup */
1054                 pmic->rdev[id] = rdev;
1055
1056                 /* Initialise sleep/init values from platform data */
1057                 if (pdata) {
1058                         reg_init = pdata->reg_init[id];
1059                         if (reg_init) {
1060                                 if (id < TPS65917_REG_REGEN1)
1061                                         ret = palmas_ldo_init(pmic->palmas,
1062                                                               id, reg_init);
1063                                 else
1064                                         ret = palmas_extreg_init(pmic->palmas,
1065                                                                  id, reg_init);
1066                                 if (ret)
1067                                         return ret;
1068                         }
1069                 }
1070         }
1071
1072         return 0;
1073 }
1074
1075 static int palmas_smps_registration(struct palmas_pmic *pmic,
1076                                     struct palmas_pmic_driver_data *ddata,
1077                                     struct palmas_pmic_platform_data *pdata,
1078                                     const char *pdev_name,
1079                                     struct regulator_config config)
1080 {
1081         int id, ret;
1082         unsigned int addr, reg;
1083         struct regulator_dev *rdev;
1084         struct palmas_reg_init *reg_init;
1085         struct palmas_regs_info *rinfo;
1086         struct regulator_desc *desc;
1087
1088         for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1089                 bool ramp_delay_support = false;
1090
1091                 /*
1092                  * Miss out regulators which are not available due
1093                  * to slaving configurations.
1094                  */
1095                 switch (id) {
1096                 case PALMAS_REG_SMPS12:
1097                 case PALMAS_REG_SMPS3:
1098                         if (pmic->smps123)
1099                                 continue;
1100                         if (id == PALMAS_REG_SMPS12)
1101                                 ramp_delay_support = true;
1102                         break;
1103                 case PALMAS_REG_SMPS123:
1104                         if (!pmic->smps123)
1105                                 continue;
1106                         ramp_delay_support = true;
1107                         break;
1108                 case PALMAS_REG_SMPS45:
1109                 case PALMAS_REG_SMPS7:
1110                         if (pmic->smps457)
1111                                 continue;
1112                         if (id == PALMAS_REG_SMPS45)
1113                                 ramp_delay_support = true;
1114                         break;
1115                 case PALMAS_REG_SMPS457:
1116                         if (!pmic->smps457)
1117                                 continue;
1118                         ramp_delay_support = true;
1119                         break;
1120                 case PALMAS_REG_SMPS10_OUT1:
1121                 case PALMAS_REG_SMPS10_OUT2:
1122                         if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST))
1123                                 continue;
1124                 }
1125                 rinfo = &ddata->palmas_regs_info[id];
1126                 desc = &pmic->desc[id];
1127
1128                 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
1129                         ramp_delay_support = true;
1130
1131                 if (ramp_delay_support) {
1132                         addr = rinfo->tstep_addr;
1133                         ret = palmas_smps_read(pmic->palmas, addr, &reg);
1134                         if (ret < 0) {
1135                                 dev_err(pmic->dev,
1136                                         "reading TSTEP reg failed: %d\n", ret);
1137                                 return ret;
1138                         }
1139                         desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3];
1140                         pmic->ramp_delay[id] = desc->ramp_delay;
1141                 }
1142
1143                 /* Initialise sleep/init values from platform data */
1144                 if (pdata && pdata->reg_init[id]) {
1145                         reg_init = pdata->reg_init[id];
1146                         ret = palmas_smps_init(pmic->palmas, id, reg_init);
1147                         if (ret)
1148                                 return ret;
1149                 } else {
1150                         reg_init = NULL;
1151                 }
1152
1153                 /* Register the regulators */
1154                 desc->name = rinfo->name;
1155                 desc->id = id;
1156
1157                 switch (id) {
1158                 case PALMAS_REG_SMPS10_OUT1:
1159                 case PALMAS_REG_SMPS10_OUT2:
1160                         desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
1161                         desc->ops = &palmas_ops_smps10;
1162                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1163                                                             PALMAS_SMPS10_CTRL);
1164                         desc->vsel_mask = SMPS10_VSEL;
1165                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1166                                                             PALMAS_SMPS10_CTRL);
1167                         if (id == PALMAS_REG_SMPS10_OUT1)
1168                                 desc->enable_mask = SMPS10_SWITCH_EN;
1169                         else
1170                                 desc->enable_mask = SMPS10_BOOST_EN;
1171                         desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1172                                                             PALMAS_SMPS10_CTRL);
1173                         desc->bypass_mask = SMPS10_BYPASS_EN;
1174                         desc->min_uV = 3750000;
1175                         desc->uV_step = 1250000;
1176                         break;
1177                 default:
1178                         /*
1179                          * Read and store the RANGE bit for later use
1180                          * This must be done before regulator is probed,
1181                          * otherwise we error in probe with unsupportable
1182                          * ranges. Read the current smps mode for later use.
1183                          */
1184                         addr = rinfo->vsel_addr;
1185                         desc->n_linear_ranges = 3;
1186
1187                         ret = palmas_smps_read(pmic->palmas, addr, &reg);
1188                         if (ret)
1189                                 return ret;
1190                         if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
1191                                 pmic->range[id] = 1;
1192                         if (pmic->range[id])
1193                                 desc->linear_ranges = smps_high_ranges;
1194                         else
1195                                 desc->linear_ranges = smps_low_ranges;
1196
1197                         if (reg_init && reg_init->roof_floor)
1198                                 desc->ops = &palmas_ops_ext_control_smps;
1199                         else
1200                                 desc->ops = &palmas_ops_smps;
1201                         desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1202                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1203                                                             rinfo->vsel_addr);
1204                         desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1205
1206                         /* Read the smps mode for later use. */
1207                         addr = rinfo->ctrl_addr;
1208                         ret = palmas_smps_read(pmic->palmas, addr, &reg);
1209                         if (ret)
1210                                 return ret;
1211                         pmic->current_reg_mode[id] = reg &
1212                                         PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1213
1214                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1215                                                               rinfo->ctrl_addr);
1216                         desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1217                         /* set_mode overrides this value */
1218                         desc->enable_val = SMPS_CTRL_MODE_ON;
1219                 }
1220
1221                 desc->type = REGULATOR_VOLTAGE;
1222                 desc->owner = THIS_MODULE;
1223
1224                 if (pdata)
1225                         config.init_data = pdata->reg_data[id];
1226                 else
1227                         config.init_data = NULL;
1228
1229                 desc->supply_name = rinfo->sname;
1230                 config.of_node = ddata->palmas_matches[id].of_node;
1231
1232                 rdev = devm_regulator_register(pmic->dev, desc, &config);
1233                 if (IS_ERR(rdev)) {
1234                         dev_err(pmic->dev,
1235                                 "failed to register %s regulator\n",
1236                                 pdev_name);
1237                         return PTR_ERR(rdev);
1238                 }
1239
1240                 /* Save regulator for cleanup */
1241                 pmic->rdev[id] = rdev;
1242         }
1243
1244         return 0;
1245 }
1246
1247 static int tps65917_smps_registration(struct palmas_pmic *pmic,
1248                                       struct palmas_pmic_driver_data *ddata,
1249                                       struct palmas_pmic_platform_data *pdata,
1250                                       const char *pdev_name,
1251                                       struct regulator_config config)
1252 {
1253         int id, ret;
1254         unsigned int addr, reg;
1255         struct regulator_dev *rdev;
1256         struct palmas_reg_init *reg_init;
1257         struct palmas_regs_info *rinfo;
1258         struct regulator_desc *desc;
1259
1260         for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1261                 /*
1262                  * Miss out regulators which are not available due
1263                  * to slaving configurations.
1264                  */
1265                 desc = &pmic->desc[id];
1266                 desc->n_linear_ranges = 3;
1267                 if ((id == TPS65917_REG_SMPS2) && pmic->smps12)
1268                         continue;
1269
1270                 /* Initialise sleep/init values from platform data */
1271                 if (pdata && pdata->reg_init[id]) {
1272                         reg_init = pdata->reg_init[id];
1273                         ret = palmas_smps_init(pmic->palmas, id, reg_init);
1274                         if (ret)
1275                                 return ret;
1276                 } else {
1277                         reg_init = NULL;
1278                 }
1279                 rinfo = &ddata->palmas_regs_info[id];
1280
1281                 /* Register the regulators */
1282                 desc->name = rinfo->name;
1283                 desc->id = id;
1284
1285                 /*
1286                  * Read and store the RANGE bit for later use
1287                  * This must be done before regulator is probed,
1288                  * otherwise we error in probe with unsupportable
1289                  * ranges. Read the current smps mode for later use.
1290                  */
1291                 addr = rinfo->vsel_addr;
1292
1293                 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1294                 if (ret)
1295                         return ret;
1296                 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE)
1297                         pmic->range[id] = 1;
1298
1299                 if (pmic->range[id])
1300                         desc->linear_ranges = smps_high_ranges;
1301                 else
1302                         desc->linear_ranges = smps_low_ranges;
1303
1304                 if (reg_init && reg_init->roof_floor)
1305                         desc->ops = &tps65917_ops_ext_control_smps;
1306                 else
1307                         desc->ops = &tps65917_ops_smps;
1308                 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1309                 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1310                                                     rinfo->vsel_addr);
1311                 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1312                 desc->ramp_delay = 2500;
1313
1314                 /* Read the smps mode for later use. */
1315                 addr = rinfo->ctrl_addr;
1316                 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1317                 if (ret)
1318                         return ret;
1319                 pmic->current_reg_mode[id] = reg &
1320                                 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1321                 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1322                                                       rinfo->ctrl_addr);
1323                 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1324                 /* set_mode overrides this value */
1325                 desc->enable_val = SMPS_CTRL_MODE_ON;
1326
1327                 desc->type = REGULATOR_VOLTAGE;
1328                 desc->owner = THIS_MODULE;
1329
1330                 if (pdata)
1331                         config.init_data = pdata->reg_data[id];
1332                 else
1333                         config.init_data = NULL;
1334
1335                 desc->supply_name = rinfo->sname;
1336                 config.of_node = ddata->palmas_matches[id].of_node;
1337
1338                 rdev = devm_regulator_register(pmic->dev, desc, &config);
1339                 if (IS_ERR(rdev)) {
1340                         dev_err(pmic->dev,
1341                                 "failed to register %s regulator\n",
1342                                 pdev_name);
1343                         return PTR_ERR(rdev);
1344                 }
1345
1346                 /* Save regulator for cleanup */
1347                 pmic->rdev[id] = rdev;
1348         }
1349
1350         return 0;
1351 }
1352
1353 static struct of_regulator_match palmas_matches[] = {
1354         { .name = "smps12", },
1355         { .name = "smps123", },
1356         { .name = "smps3", },
1357         { .name = "smps45", },
1358         { .name = "smps457", },
1359         { .name = "smps6", },
1360         { .name = "smps7", },
1361         { .name = "smps8", },
1362         { .name = "smps9", },
1363         { .name = "smps10_out2", },
1364         { .name = "smps10_out1", },
1365         { .name = "ldo1", },
1366         { .name = "ldo2", },
1367         { .name = "ldo3", },
1368         { .name = "ldo4", },
1369         { .name = "ldo5", },
1370         { .name = "ldo6", },
1371         { .name = "ldo7", },
1372         { .name = "ldo8", },
1373         { .name = "ldo9", },
1374         { .name = "ldoln", },
1375         { .name = "ldousb", },
1376         { .name = "regen1", },
1377         { .name = "regen2", },
1378         { .name = "regen3", },
1379         { .name = "sysen1", },
1380         { .name = "sysen2", },
1381 };
1382
1383 static struct of_regulator_match tps65917_matches[] = {
1384         { .name = "smps1", },
1385         { .name = "smps2", },
1386         { .name = "smps3", },
1387         { .name = "smps4", },
1388         { .name = "smps5", },
1389         { .name = "ldo1", },
1390         { .name = "ldo2", },
1391         { .name = "ldo3", },
1392         { .name = "ldo4", },
1393         { .name = "ldo5", },
1394         { .name = "regen1", },
1395         { .name = "regen2", },
1396         { .name = "regen3", },
1397         { .name = "sysen1", },
1398         { .name = "sysen2", },
1399 };
1400
1401 static struct palmas_pmic_driver_data palmas_ddata = {
1402         .smps_start = PALMAS_REG_SMPS12,
1403         .smps_end = PALMAS_REG_SMPS10_OUT1,
1404         .ldo_begin = PALMAS_REG_LDO1,
1405         .ldo_end = PALMAS_REG_LDOUSB,
1406         .max_reg = PALMAS_NUM_REGS,
1407         .has_regen3 = true,
1408         .palmas_regs_info = palmas_generic_regs_info,
1409         .palmas_matches = palmas_matches,
1410         .sleep_req_info = palma_sleep_req_info,
1411         .smps_register = palmas_smps_registration,
1412         .ldo_register = palmas_ldo_registration,
1413 };
1414
1415 static struct palmas_pmic_driver_data tps65917_ddata = {
1416         .smps_start = TPS65917_REG_SMPS1,
1417         .smps_end = TPS65917_REG_SMPS5,
1418         .ldo_begin = TPS65917_REG_LDO1,
1419         .ldo_end = TPS65917_REG_LDO5,
1420         .max_reg = TPS65917_NUM_REGS,
1421         .has_regen3 = true,
1422         .palmas_regs_info = tps65917_regs_info,
1423         .palmas_matches = tps65917_matches,
1424         .sleep_req_info = tps65917_sleep_req_info,
1425         .smps_register = tps65917_smps_registration,
1426         .ldo_register = tps65917_ldo_registration,
1427 };
1428
1429 static void palmas_dt_to_pdata(struct device *dev,
1430                                struct device_node *node,
1431                                struct palmas_pmic_platform_data *pdata,
1432                                struct palmas_pmic_driver_data *ddata)
1433 {
1434         struct device_node *regulators;
1435         u32 prop;
1436         int idx, ret;
1437
1438         regulators = of_get_child_by_name(node, "regulators");
1439         if (!regulators) {
1440                 dev_info(dev, "regulator node not found\n");
1441                 return;
1442         }
1443
1444         ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
1445                                  ddata->max_reg);
1446         of_node_put(regulators);
1447         if (ret < 0) {
1448                 dev_err(dev, "Error parsing regulator init data: %d\n", ret);
1449                 return;
1450         }
1451
1452         for (idx = 0; idx < ddata->max_reg; idx++) {
1453                 if (!ddata->palmas_matches[idx].init_data ||
1454                     !ddata->palmas_matches[idx].of_node)
1455                         continue;
1456
1457                 pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data;
1458
1459                 pdata->reg_init[idx] = devm_kzalloc(dev,
1460                                 sizeof(struct palmas_reg_init), GFP_KERNEL);
1461
1462                 pdata->reg_init[idx]->warm_reset =
1463                         of_property_read_bool(ddata->palmas_matches[idx].of_node,
1464                                               "ti,warm-reset");
1465
1466                 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
1467                                            "ti,roof-floor", &prop);
1468                 /* EINVAL: Property not found */
1469                 if (ret != -EINVAL) {
1470                         int econtrol;
1471
1472                         /* use default value, when no value is specified */
1473                         econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1474                         if (!ret) {
1475                                 switch (prop) {
1476                                 case 1:
1477                                         econtrol = PALMAS_EXT_CONTROL_ENABLE1;
1478                                         break;
1479                                 case 2:
1480                                         econtrol = PALMAS_EXT_CONTROL_ENABLE2;
1481                                         break;
1482                                 case 3:
1483                                         econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1484                                         break;
1485                                 default:
1486                                         WARN_ON(1);
1487                                         dev_warn(dev,
1488                                                  "%s: Invalid roof-floor option: %u\n",
1489                                              palmas_matches[idx].name, prop);
1490                                         break;
1491                                 }
1492                         }
1493                         pdata->reg_init[idx]->roof_floor = econtrol;
1494                 }
1495
1496                 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
1497                                            "ti,mode-sleep", &prop);
1498                 if (!ret)
1499                         pdata->reg_init[idx]->mode_sleep = prop;
1500
1501                 ret = of_property_read_bool(ddata->palmas_matches[idx].of_node,
1502                                             "ti,smps-range");
1503                 if (ret)
1504                         pdata->reg_init[idx]->vsel =
1505                                 PALMAS_SMPS12_VOLTAGE_RANGE;
1506
1507                 if (idx == PALMAS_REG_LDO8)
1508                         pdata->enable_ldo8_tracking = of_property_read_bool(
1509                                                 ddata->palmas_matches[idx].of_node,
1510                                                 "ti,enable-ldo8-tracking");
1511         }
1512
1513         pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
1514 }
1515
1516 static const struct of_device_id of_palmas_match_tbl[] = {
1517         {
1518                 .compatible = "ti,palmas-pmic",
1519                 .data = &palmas_ddata,
1520         },
1521         {
1522                 .compatible = "ti,twl6035-pmic",
1523                 .data = &palmas_ddata,
1524         },
1525         {
1526                 .compatible = "ti,twl6036-pmic",
1527                 .data = &palmas_ddata,
1528         },
1529         {
1530                 .compatible = "ti,twl6037-pmic",
1531                 .data = &palmas_ddata,
1532         },
1533         {
1534                 .compatible = "ti,tps65913-pmic",
1535                 .data = &palmas_ddata,
1536         },
1537         {
1538                 .compatible = "ti,tps65914-pmic",
1539                 .data = &palmas_ddata,
1540         },
1541         {
1542                 .compatible = "ti,tps80036-pmic",
1543                 .data = &palmas_ddata,
1544         },
1545         {
1546                 .compatible = "ti,tps659038-pmic",
1547                 .data = &palmas_ddata,
1548         },
1549          {
1550                 .compatible = "ti,tps65917-pmic",
1551                 .data = &tps65917_ddata,
1552         },
1553         { /* end */ }
1554 };
1555
1556 static int palmas_regulators_probe(struct platform_device *pdev)
1557 {
1558         struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
1559         struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev);
1560         struct device_node *node = pdev->dev.of_node;
1561         struct palmas_pmic_driver_data *driver_data;
1562         struct regulator_config config = { };
1563         struct palmas_pmic *pmic;
1564         const char *pdev_name;
1565         const struct of_device_id *match;
1566         int ret = 0;
1567         unsigned int reg;
1568
1569         match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev);
1570
1571         if (!match)
1572                 return -ENODATA;
1573
1574         driver_data = (struct palmas_pmic_driver_data *)match->data;
1575         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1576         if (!pdata)
1577                 return -ENOMEM;
1578
1579         pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1580         if (!pmic)
1581                 return -ENOMEM;
1582
1583         if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
1584                 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
1585                                                         TPS659038_REGEN2_CTRL;
1586                 palmas_ddata.has_regen3 = false;
1587         }
1588
1589         pmic->dev = &pdev->dev;
1590         pmic->palmas = palmas;
1591         palmas->pmic = pmic;
1592         platform_set_drvdata(pdev, pmic);
1593         pmic->palmas->pmic_ddata = driver_data;
1594
1595         palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
1596
1597         ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, &reg);
1598         if (ret)
1599                 return ret;
1600
1601         if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN)
1602                 pmic->smps123 = 1;
1603
1604         if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
1605                 pmic->smps457 = 1;
1606
1607         config.regmap = palmas->regmap[REGULATOR_SLAVE];
1608         config.dev = &pdev->dev;
1609         config.driver_data = pmic;
1610         pdev_name = pdev->name;
1611
1612         ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name,
1613                                          config);
1614         if (ret)
1615                 return ret;
1616
1617         ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name,
1618                                         config);
1619
1620         return ret;
1621 }
1622
1623 static struct platform_driver palmas_driver = {
1624         .driver = {
1625                 .name = "palmas-pmic",
1626                 .of_match_table = of_palmas_match_tbl,
1627         },
1628         .probe = palmas_regulators_probe,
1629 };
1630
1631 static int __init palmas_init(void)
1632 {
1633         return platform_driver_register(&palmas_driver);
1634 }
1635 subsys_initcall(palmas_init);
1636
1637 static void __exit palmas_exit(void)
1638 {
1639         platform_driver_unregister(&palmas_driver);
1640 }
1641 module_exit(palmas_exit);
1642
1643 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1644 MODULE_DESCRIPTION("Palmas voltage regulator driver");
1645 MODULE_LICENSE("GPL");
1646 MODULE_ALIAS("platform:palmas-pmic");
1647 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);