kernel/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         struct palmas_pmic *pmic = rdev_get_drvdata(dev);
 439         struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
 440         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 441         unsigned int reg;
 442         bool rail_enable = true;
 443
 444         palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, &reg);
 445
 446         reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
 447
 448         if (reg == SMPS_CTRL_MODE_OFF)
 449                 rail_enable = false;
 450
 451         switch (mode) {
 452         case REGULATOR_MODE_NORMAL:
 453                 reg |= SMPS_CTRL_MODE_ON;
 454                 break;
 455         case REGULATOR_MODE_IDLE:
 456                 reg |= SMPS_CTRL_MODE_ECO;
 457                 break;
 458         case REGULATOR_MODE_FAST:
 459                 reg |= SMPS_CTRL_MODE_PWM;
 460                 break;
 461         default:
 462                 return -EINVAL;
 463         }
 464
 465         pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
 466         if (rail_enable)
 467                 palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg);
 468
 469         /* Switch the enable value to ensure this is used for enable */
 470         pmic->desc[id].enable_val = pmic->current_reg_mode[id];
 471
 472         return 0;
 473 }
 474
 475 static unsigned int palmas_get_mode_smps(struct regulator_dev *dev)
 476 {
 477         struct palmas_pmic *pmic = rdev_get_drvdata(dev);
 478         int id = rdev_get_id(dev);
 479         unsigned int reg;
 480
 481         reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
 482
 483         switch (reg) {
 484         case SMPS_CTRL_MODE_ON:
 485                 return REGULATOR_MODE_NORMAL;
 486         case SMPS_CTRL_MODE_ECO:
 487                 return REGULATOR_MODE_IDLE;
 488         case SMPS_CTRL_MODE_PWM:
 489                 return REGULATOR_MODE_FAST;
 490         }
 491
 492         return 0;
 493 }
 494
 495 static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev,
 496                  int ramp_delay)
 497 {
 498         int id = rdev_get_id(rdev);
 499         struct palmas_pmic *pmic = rdev_get_drvdata(rdev);
 500         struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
 501         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 502         unsigned int reg = 0;
 503         int ret;
 504
 505         /* SMPS3 and SMPS7 do not have tstep_addr setting */
 506         switch (id) {
 507         case PALMAS_REG_SMPS3:
 508         case PALMAS_REG_SMPS7:
 509                 return 0;
 510         }
 511
 512         if (ramp_delay <= 0)
 513                 reg = 0;
 514         else if (ramp_delay <= 2500)
 515                 reg = 3;
 516         else if (ramp_delay <= 5000)
 517                 reg = 2;
 518         else
 519                 reg = 1;
 520
 521         ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg);
 522         if (ret < 0) {
 523                 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret);
 524                 return ret;
 525         }
 526
 527         pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg];
 528         return ret;
 529 }
 530
 531 static struct regulator_ops palmas_ops_smps = {
 532         .is_enabled             = regulator_is_enabled_regmap,
 533         .enable                 = regulator_enable_regmap,
 534         .disable                = regulator_disable_regmap,
 535         .set_mode               = palmas_set_mode_smps,
 536         .get_mode               = palmas_get_mode_smps,
 537         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 538         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 539         .list_voltage           = regulator_list_voltage_linear_range,
 540         .map_voltage            = regulator_map_voltage_linear_range,
 541         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 542         .set_ramp_delay         = palmas_smps_set_ramp_delay,
 543 };
 544
 545 static struct regulator_ops palmas_ops_ext_control_smps = {
 546         .set_mode               = palmas_set_mode_smps,
 547         .get_mode               = palmas_get_mode_smps,
 548         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 549         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 550         .list_voltage           = regulator_list_voltage_linear_range,
 551         .map_voltage            = regulator_map_voltage_linear_range,
 552         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 553         .set_ramp_delay         = palmas_smps_set_ramp_delay,
 554 };
 555
 556 static struct regulator_ops palmas_ops_smps10 = {
 557         .is_enabled             = regulator_is_enabled_regmap,
 558         .enable                 = regulator_enable_regmap,
 559         .disable                = regulator_disable_regmap,
 560         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 561         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 562         .list_voltage           = regulator_list_voltage_linear,
 563         .map_voltage            = regulator_map_voltage_linear,
 564         .set_bypass             = regulator_set_bypass_regmap,
 565         .get_bypass             = regulator_get_bypass_regmap,
 566 };
 567
 568 static struct regulator_ops tps65917_ops_smps = {
 569         .is_enabled             = regulator_is_enabled_regmap,
 570         .enable                 = regulator_enable_regmap,
 571         .disable                = regulator_disable_regmap,
 572         .set_mode               = palmas_set_mode_smps,
 573         .get_mode               = palmas_get_mode_smps,
 574         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 575         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 576         .list_voltage           = regulator_list_voltage_linear_range,
 577         .map_voltage            = regulator_map_voltage_linear_range,
 578         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 579 };
 580
 581 static struct regulator_ops tps65917_ops_ext_control_smps = {
 582         .set_mode               = palmas_set_mode_smps,
 583         .get_mode               = palmas_get_mode_smps,
 584         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 585         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 586         .list_voltage           = regulator_list_voltage_linear_range,
 587         .map_voltage            = regulator_map_voltage_linear_range,
 588 };
 589
 590 static int palmas_is_enabled_ldo(struct regulator_dev *dev)
 591 {
 592         int id = rdev_get_id(dev);
 593         struct palmas_pmic *pmic = rdev_get_drvdata(dev);
 594         struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata;
 595         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 596         unsigned int reg;
 597
 598         palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, &reg);
 599
 600         reg &= PALMAS_LDO1_CTRL_STATUS;
 601
 602         return !!(reg);
 603 }
 604
 605 static struct regulator_ops palmas_ops_ldo = {
 606         .is_enabled             = palmas_is_enabled_ldo,
 607         .enable                 = regulator_enable_regmap,
 608         .disable                = regulator_disable_regmap,
 609         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 610         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 611         .list_voltage           = regulator_list_voltage_linear,
 612         .map_voltage            = regulator_map_voltage_linear,
 613 };
 614
 615 static struct regulator_ops palmas_ops_ext_control_ldo = {
 616         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 617         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 618         .list_voltage           = regulator_list_voltage_linear,
 619         .map_voltage            = regulator_map_voltage_linear,
 620 };
 621
 622 static struct regulator_ops palmas_ops_extreg = {
 623         .is_enabled             = regulator_is_enabled_regmap,
 624         .enable                 = regulator_enable_regmap,
 625         .disable                = regulator_disable_regmap,
 626 };
 627
 628 static struct regulator_ops palmas_ops_ext_control_extreg = {
 629 };
 630
 631 static struct regulator_ops tps65917_ops_ldo = {
 632         .is_enabled             = palmas_is_enabled_ldo,
 633         .enable                 = regulator_enable_regmap,
 634         .disable                = regulator_disable_regmap,
 635         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
 636         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
 637         .list_voltage           = regulator_list_voltage_linear,
 638         .map_voltage            = regulator_map_voltage_linear,
 639         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 640 };
 641
 642 static int palmas_regulator_config_external(struct palmas *palmas, int id,
 643                 struct palmas_reg_init *reg_init)
 644 {
 645         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 646         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 647         int ret;
 648
 649         ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id,
 650                                             reg_init->roof_floor, true);
 651         if (ret < 0)
 652                 dev_err(palmas->dev,
 653                         "Ext control config for regulator %d failed %d\n",
 654                         id, ret);
 655         return ret;
 656 }
 657
 658 /*
 659  * setup the hardware based sleep configuration of the SMPS/LDO regulators
 660  * from the platform data. This is different to the software based control
 661  * supported by the regulator framework as it is controlled by toggling
 662  * pins on the PMIC such as PREQ, SYSEN, ...
 663  */
 664 static int palmas_smps_init(struct palmas *palmas, int id,
 665                 struct palmas_reg_init *reg_init)
 666 {
 667         unsigned int reg;
 668         int ret;
 669         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 670         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 671         unsigned int addr = rinfo->ctrl_addr;
 672
 673         ret = palmas_smps_read(palmas, addr, &reg);
 674         if (ret)
 675                 return ret;
 676
 677         switch (id) {
 678         case PALMAS_REG_SMPS10_OUT1:
 679         case PALMAS_REG_SMPS10_OUT2:
 680                 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK;
 681                 if (reg_init->mode_sleep)
 682                         reg |= reg_init->mode_sleep <<
 683                                         PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT;
 684                 break;
 685         default:
 686                 if (reg_init->warm_reset)
 687                         reg |= PALMAS_SMPS12_CTRL_WR_S;
 688                 else
 689                         reg &= ~PALMAS_SMPS12_CTRL_WR_S;
 690
 691                 if (reg_init->roof_floor)
 692                         reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
 693                 else
 694                         reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN;
 695
 696                 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK;
 697                 if (reg_init->mode_sleep)
 698                         reg |= reg_init->mode_sleep <<
 699                                         PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT;
 700         }
 701
 702         ret = palmas_smps_write(palmas, addr, reg);
 703         if (ret)
 704                 return ret;
 705
 706         if (rinfo->vsel_addr && reg_init->vsel) {
 707
 708                 reg = reg_init->vsel;
 709
 710                 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg);
 711                 if (ret)
 712                         return ret;
 713         }
 714
 715         if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
 716                         (id != PALMAS_REG_SMPS10_OUT2)) {
 717                 /* Enable externally controlled regulator */
 718                 ret = palmas_smps_read(palmas, addr, &reg);
 719                 if (ret < 0)
 720                         return ret;
 721
 722                 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
 723                         reg |= SMPS_CTRL_MODE_ON;
 724                         ret = palmas_smps_write(palmas, addr, reg);
 725                         if (ret < 0)
 726                                 return ret;
 727                 }
 728                 return palmas_regulator_config_external(palmas, id, reg_init);
 729         }
 730         return 0;
 731 }
 732
 733 static int palmas_ldo_init(struct palmas *palmas, int id,
 734                 struct palmas_reg_init *reg_init)
 735 {
 736         unsigned int reg;
 737         unsigned int addr;
 738         int ret;
 739         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 740         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 741
 742         addr = rinfo->ctrl_addr;
 743
 744         ret = palmas_ldo_read(palmas, addr, &reg);
 745         if (ret)
 746                 return ret;
 747
 748         if (reg_init->warm_reset)
 749                 reg |= PALMAS_LDO1_CTRL_WR_S;
 750         else
 751                 reg &= ~PALMAS_LDO1_CTRL_WR_S;
 752
 753         if (reg_init->mode_sleep)
 754                 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP;
 755         else
 756                 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP;
 757
 758         ret = palmas_ldo_write(palmas, addr, reg);
 759         if (ret)
 760                 return ret;
 761
 762         if (reg_init->roof_floor) {
 763                 /* Enable externally controlled regulator */
 764                 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
 765                                 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
 766                                 PALMAS_LDO1_CTRL_MODE_ACTIVE);
 767                 if (ret < 0) {
 768                         dev_err(palmas->dev,
 769                                 "LDO Register 0x%02x update failed %d\n",
 770                                 addr, ret);
 771                         return ret;
 772                 }
 773                 return palmas_regulator_config_external(palmas, id, reg_init);
 774         }
 775         return 0;
 776 }
 777
 778 static int palmas_extreg_init(struct palmas *palmas, int id,
 779                 struct palmas_reg_init *reg_init)
 780 {
 781         unsigned int addr;
 782         int ret;
 783         unsigned int val = 0;
 784         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 785         struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id];
 786
 787         addr = rinfo->ctrl_addr;
 788
 789         if (reg_init->mode_sleep)
 790                 val = PALMAS_REGEN1_CTRL_MODE_SLEEP;
 791
 792         ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
 793                         addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val);
 794         if (ret < 0) {
 795                 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n",
 796                         addr, ret);
 797                 return ret;
 798         }
 799
 800         if (reg_init->roof_floor) {
 801                 /* Enable externally controlled regulator */
 802                 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
 803                                 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
 804                                 PALMAS_REGEN1_CTRL_MODE_ACTIVE);
 805                 if (ret < 0) {
 806                         dev_err(palmas->dev,
 807                                 "Resource Register 0x%02x update failed %d\n",
 808                                 addr, ret);
 809                         return ret;
 810                 }
 811                 return palmas_regulator_config_external(palmas, id, reg_init);
 812         }
 813         return 0;
 814 }
 815
 816 static void palmas_enable_ldo8_track(struct palmas *palmas)
 817 {
 818         unsigned int reg;
 819         unsigned int addr;
 820         int ret;
 821         struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata;
 822         struct palmas_regs_info *rinfo;
 823
 824         rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8];
 825         addr = rinfo->ctrl_addr;
 826
 827         ret = palmas_ldo_read(palmas, addr, &reg);
 828         if (ret) {
 829                 dev_err(palmas->dev, "Error in reading ldo8 control reg\n");
 830                 return;
 831         }
 832
 833         reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN;
 834         ret = palmas_ldo_write(palmas, addr, reg);
 835         if (ret < 0) {
 836                 dev_err(palmas->dev, "Error in enabling tracking mode\n");
 837                 return;
 838         }
 839         /*
 840          * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8
 841          * output is defined by the LDO8_VOLTAGE.VSEL register divided by two,
 842          * and can be set from 0.45 to 1.65 V.
 843          */
 844         addr = rinfo->vsel_addr;
 845         ret = palmas_ldo_read(palmas, addr, &reg);
 846         if (ret) {
 847                 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n");
 848                 return;
 849         }
 850
 851         reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK;
 852         ret = palmas_ldo_write(palmas, addr, reg);
 853         if (ret < 0)
 854                 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n");
 855
 856         return;
 857 }
 858
 859 static int palmas_ldo_registration(struct palmas_pmic *pmic,
 860                                    struct palmas_pmic_driver_data *ddata,
 861                                    struct palmas_pmic_platform_data *pdata,
 862                                    const char *pdev_name,
 863                                    struct regulator_config config)
 864 {
 865         int id, ret;
 866         struct regulator_dev *rdev;
 867         struct palmas_reg_init *reg_init;
 868         struct palmas_regs_info *rinfo;
 869         struct regulator_desc *desc;
 870
 871         for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
 872                 if (pdata && pdata->reg_init[id])
 873                         reg_init = pdata->reg_init[id];
 874                 else
 875                         reg_init = NULL;
 876
 877                 rinfo = &ddata->palmas_regs_info[id];
 878                 /* Miss out regulators which are not available due
 879                  * to alternate functions.
 880                  */
 881
 882                 /* Register the regulators */
 883                 desc = &pmic->desc[id];
 884                 desc->name = rinfo->name;
 885                 desc->id = id;
 886                 desc->type = REGULATOR_VOLTAGE;
 887                 desc->owner = THIS_MODULE;
 888
 889                 if (id < PALMAS_REG_REGEN1) {
 890                         desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
 891                         if (reg_init && reg_init->roof_floor)
 892                                 desc->ops = &palmas_ops_ext_control_ldo;
 893                         else
 894                                 desc->ops = &palmas_ops_ldo;
 895                         desc->min_uV = 900000;
 896                         desc->uV_step = 50000;
 897                         desc->linear_min_sel = 1;
 898                         desc->enable_time = 500;
 899                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
 900                                                             rinfo->vsel_addr);
 901                         desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
 902                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
 903                                                               rinfo->ctrl_addr);
 904                         desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
 905
 906                         /* Check if LDO8 is in tracking mode or not */
 907                         if (pdata && (id == PALMAS_REG_LDO8) &&
 908                             pdata->enable_ldo8_tracking) {
 909                                 palmas_enable_ldo8_track(pmic->palmas);
 910                                 desc->min_uV = 450000;
 911                                 desc->uV_step = 25000;
 912                         }
 913
 914                         /* LOD6 in vibrator mode will have enable time 2000us */
 915                         if (pdata && pdata->ldo6_vibrator &&
 916                             (id == PALMAS_REG_LDO6))
 917                                 desc->enable_time = 2000;
 918                 } else {
 919                         if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3)
 920                                 continue;
 921
 922                         desc->n_voltages = 1;
 923                         if (reg_init && reg_init->roof_floor)
 924                                 desc->ops = &palmas_ops_ext_control_extreg;
 925                         else
 926                                 desc->ops = &palmas_ops_extreg;
 927                         desc->enable_reg =
 928                                         PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
 929                                                            rinfo->ctrl_addr);
 930                         desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
 931                 }
 932
 933                 if (pdata)
 934                         config.init_data = pdata->reg_data[id];
 935                 else
 936                         config.init_data = NULL;
 937
 938                 desc->supply_name = rinfo->sname;
 939                 config.of_node = ddata->palmas_matches[id].of_node;
 940
 941                 rdev = devm_regulator_register(pmic->dev, desc, &config);
 942                 if (IS_ERR(rdev)) {
 943                         dev_err(pmic->dev,
 944                                 "failed to register %s regulator\n",
 945                                 pdev_name);
 946                         return PTR_ERR(rdev);
 947                 }
 948
 949                 /* Save regulator for cleanup */
 950                 pmic->rdev[id] = rdev;
 951
 952                 /* Initialise sleep/init values from platform data */
 953                 if (pdata) {
 954                         reg_init = pdata->reg_init[id];
 955                         if (reg_init) {
 956                                 if (id <= ddata->ldo_end)
 957                                         ret = palmas_ldo_init(pmic->palmas, id,
 958                                                               reg_init);
 959                                 else
 960                                         ret = palmas_extreg_init(pmic->palmas,
 961                                                                  id, reg_init);
 962                                 if (ret)
 963                                         return ret;
 964                         }
 965                 }
 966         }
 967
 968         return 0;
 969 }
 970
 971 static int tps65917_ldo_registration(struct palmas_pmic *pmic,
 972                                      struct palmas_pmic_driver_data *ddata,
 973                                      struct palmas_pmic_platform_data *pdata,
 974                                      const char *pdev_name,
 975                                      struct regulator_config config)
 976 {
 977         int id, ret;
 978         struct regulator_dev *rdev;
 979         struct palmas_reg_init *reg_init;
 980         struct palmas_regs_info *rinfo;
 981         struct regulator_desc *desc;
 982
 983         for (id = ddata->ldo_begin; id < ddata->max_reg; id++) {
 984                 if (pdata && pdata->reg_init[id])
 985                         reg_init = pdata->reg_init[id];
 986                 else
 987                         reg_init = NULL;
 988
 989                 /* Miss out regulators which are not available due
 990                  * to alternate functions.
 991                  */
 992                 rinfo = &ddata->palmas_regs_info[id];
 993
 994                 /* Register the regulators */
 995                 desc = &pmic->desc[id];
 996                 desc->name = rinfo->name;
 997                 desc->id = id;
 998                 desc->type = REGULATOR_VOLTAGE;
 999                 desc->owner = THIS_MODULE;
1000
1001                 if (id < TPS65917_REG_REGEN1) {
1002                         desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES;
1003                         if (reg_init && reg_init->roof_floor)
1004                                 desc->ops = &palmas_ops_ext_control_ldo;
1005                         else
1006                                 desc->ops = &tps65917_ops_ldo;
1007                         desc->min_uV = 900000;
1008                         desc->uV_step = 50000;
1009                         desc->linear_min_sel = 1;
1010                         desc->enable_time = 500;
1011                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1012                                                             rinfo->vsel_addr);
1013                         desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
1014                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
1015                                                               rinfo->ctrl_addr);
1016                         desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE;
1017                         /*
1018                          * To be confirmed. Discussion on going with PMIC Team.
1019                          * It is of the order of ~60mV/uS.
1020                          */
1021                         desc->ramp_delay = 2500;
1022                 } else {
1023                         desc->n_voltages = 1;
1024                         if (reg_init && reg_init->roof_floor)
1025                                 desc->ops = &palmas_ops_ext_control_extreg;
1026                         else
1027                                 desc->ops = &palmas_ops_extreg;
1028                         desc->enable_reg =
1029                                         PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
1030                                                            rinfo->ctrl_addr);
1031                         desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE;
1032                 }
1033
1034                 if (pdata)
1035                         config.init_data = pdata->reg_data[id];
1036                 else
1037                         config.init_data = NULL;
1038
1039                 desc->supply_name = rinfo->sname;
1040                 config.of_node = ddata->palmas_matches[id].of_node;
1041
1042                 rdev = devm_regulator_register(pmic->dev, desc, &config);
1043                 if (IS_ERR(rdev)) {
1044                         dev_err(pmic->dev,
1045                                 "failed to register %s regulator\n",
1046                                 pdev_name);
1047                         return PTR_ERR(rdev);
1048                 }
1049
1050                 /* Save regulator for cleanup */
1051                 pmic->rdev[id] = rdev;
1052
1053                 /* Initialise sleep/init values from platform data */
1054                 if (pdata) {
1055                         reg_init = pdata->reg_init[id];
1056                         if (reg_init) {
1057                                 if (id < TPS65917_REG_REGEN1)
1058                                         ret = palmas_ldo_init(pmic->palmas,
1059                                                               id, reg_init);
1060                                 else
1061                                         ret = palmas_extreg_init(pmic->palmas,
1062                                                                  id, reg_init);
1063                                 if (ret)
1064                                         return ret;
1065                         }
1066                 }
1067         }
1068
1069         return 0;
1070 }
1071
1072 static int palmas_smps_registration(struct palmas_pmic *pmic,
1073                                     struct palmas_pmic_driver_data *ddata,
1074                                     struct palmas_pmic_platform_data *pdata,
1075                                     const char *pdev_name,
1076                                     struct regulator_config config)
1077 {
1078         int id, ret;
1079         unsigned int addr, reg;
1080         struct regulator_dev *rdev;
1081         struct palmas_reg_init *reg_init;
1082         struct palmas_regs_info *rinfo;
1083         struct regulator_desc *desc;
1084
1085         for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1086                 bool ramp_delay_support = false;
1087
1088                 /*
1089                  * Miss out regulators which are not available due
1090                  * to slaving configurations.
1091                  */
1092                 switch (id) {
1093                 case PALMAS_REG_SMPS12:
1094                 case PALMAS_REG_SMPS3:
1095                         if (pmic->smps123)
1096                                 continue;
1097                         if (id == PALMAS_REG_SMPS12)
1098                                 ramp_delay_support = true;
1099                         break;
1100                 case PALMAS_REG_SMPS123:
1101                         if (!pmic->smps123)
1102                                 continue;
1103                         ramp_delay_support = true;
1104                         break;
1105                 case PALMAS_REG_SMPS45:
1106                 case PALMAS_REG_SMPS7:
1107                         if (pmic->smps457)
1108                                 continue;
1109                         if (id == PALMAS_REG_SMPS45)
1110                                 ramp_delay_support = true;
1111                         break;
1112                 case PALMAS_REG_SMPS457:
1113                         if (!pmic->smps457)
1114                                 continue;
1115                         ramp_delay_support = true;
1116                         break;
1117                 case PALMAS_REG_SMPS10_OUT1:
1118                 case PALMAS_REG_SMPS10_OUT2:
1119                         if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST))
1120                                 continue;
1121                 }
1122                 rinfo = &ddata->palmas_regs_info[id];
1123                 desc = &pmic->desc[id];
1124
1125                 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8))
1126                         ramp_delay_support = true;
1127
1128                 if (ramp_delay_support) {
1129                         addr = rinfo->tstep_addr;
1130                         ret = palmas_smps_read(pmic->palmas, addr, &reg);
1131                         if (ret < 0) {
1132                                 dev_err(pmic->dev,
1133                                         "reading TSTEP reg failed: %d\n", ret);
1134                                 return ret;
1135                         }
1136                         desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3];
1137                         pmic->ramp_delay[id] = desc->ramp_delay;
1138                 }
1139
1140                 /* Initialise sleep/init values from platform data */
1141                 if (pdata && pdata->reg_init[id]) {
1142                         reg_init = pdata->reg_init[id];
1143                         ret = palmas_smps_init(pmic->palmas, id, reg_init);
1144                         if (ret)
1145                                 return ret;
1146                 } else {
1147                         reg_init = NULL;
1148                 }
1149
1150                 /* Register the regulators */
1151                 desc->name = rinfo->name;
1152                 desc->id = id;
1153
1154                 switch (id) {
1155                 case PALMAS_REG_SMPS10_OUT1:
1156                 case PALMAS_REG_SMPS10_OUT2:
1157                         desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES;
1158                         desc->ops = &palmas_ops_smps10;
1159                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1160                                                             PALMAS_SMPS10_CTRL);
1161                         desc->vsel_mask = SMPS10_VSEL;
1162                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1163                                                             PALMAS_SMPS10_CTRL);
1164                         if (id == PALMAS_REG_SMPS10_OUT1)
1165                                 desc->enable_mask = SMPS10_SWITCH_EN;
1166                         else
1167                                 desc->enable_mask = SMPS10_BOOST_EN;
1168                         desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1169                                                             PALMAS_SMPS10_CTRL);
1170                         desc->bypass_mask = SMPS10_BYPASS_EN;
1171                         desc->min_uV = 3750000;
1172                         desc->uV_step = 1250000;
1173                         break;
1174                 default:
1175                         /*
1176                          * Read and store the RANGE bit for later use
1177                          * This must be done before regulator is probed,
1178                          * otherwise we error in probe with unsupportable
1179                          * ranges. Read the current smps mode for later use.
1180                          */
1181                         addr = rinfo->vsel_addr;
1182                         desc->n_linear_ranges = 3;
1183
1184                         ret = palmas_smps_read(pmic->palmas, addr, &reg);
1185                         if (ret)
1186                                 return ret;
1187                         if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
1188                                 pmic->range[id] = 1;
1189                         if (pmic->range[id])
1190                                 desc->linear_ranges = smps_high_ranges;
1191                         else
1192                                 desc->linear_ranges = smps_low_ranges;
1193
1194                         if (reg_init && reg_init->roof_floor)
1195                                 desc->ops = &palmas_ops_ext_control_smps;
1196                         else
1197                                 desc->ops = &palmas_ops_smps;
1198                         desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1199                         desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1200                                                             rinfo->vsel_addr);
1201                         desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1202
1203                         /* Read the smps mode for later use. */
1204                         addr = rinfo->ctrl_addr;
1205                         ret = palmas_smps_read(pmic->palmas, addr, &reg);
1206                         if (ret)
1207                                 return ret;
1208                         pmic->current_reg_mode[id] = reg &
1209                                         PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1210
1211                         desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1212                                                               rinfo->ctrl_addr);
1213                         desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1214                         /* set_mode overrides this value */
1215                         desc->enable_val = SMPS_CTRL_MODE_ON;
1216                 }
1217
1218                 desc->type = REGULATOR_VOLTAGE;
1219                 desc->owner = THIS_MODULE;
1220
1221                 if (pdata)
1222                         config.init_data = pdata->reg_data[id];
1223                 else
1224                         config.init_data = NULL;
1225
1226                 desc->supply_name = rinfo->sname;
1227                 config.of_node = ddata->palmas_matches[id].of_node;
1228
1229                 rdev = devm_regulator_register(pmic->dev, desc, &config);
1230                 if (IS_ERR(rdev)) {
1231                         dev_err(pmic->dev,
1232                                 "failed to register %s regulator\n",
1233                                 pdev_name);
1234                         return PTR_ERR(rdev);
1235                 }
1236
1237                 /* Save regulator for cleanup */
1238                 pmic->rdev[id] = rdev;
1239         }
1240
1241         return 0;
1242 }
1243
1244 static int tps65917_smps_registration(struct palmas_pmic *pmic,
1245                                       struct palmas_pmic_driver_data *ddata,
1246                                       struct palmas_pmic_platform_data *pdata,
1247                                       const char *pdev_name,
1248                                       struct regulator_config config)
1249 {
1250         int id, ret;
1251         unsigned int addr, reg;
1252         struct regulator_dev *rdev;
1253         struct palmas_reg_init *reg_init;
1254         struct palmas_regs_info *rinfo;
1255         struct regulator_desc *desc;
1256
1257         for (id = ddata->smps_start; id <= ddata->smps_end; id++) {
1258                 /*
1259                  * Miss out regulators which are not available due
1260                  * to slaving configurations.
1261                  */
1262                 desc = &pmic->desc[id];
1263                 desc->n_linear_ranges = 3;
1264                 if ((id == TPS65917_REG_SMPS2) && pmic->smps12)
1265                         continue;
1266
1267                 /* Initialise sleep/init values from platform data */
1268                 if (pdata && pdata->reg_init[id]) {
1269                         reg_init = pdata->reg_init[id];
1270                         ret = palmas_smps_init(pmic->palmas, id, reg_init);
1271                         if (ret)
1272                                 return ret;
1273                 } else {
1274                         reg_init = NULL;
1275                 }
1276                 rinfo = &ddata->palmas_regs_info[id];
1277
1278                 /* Register the regulators */
1279                 desc->name = rinfo->name;
1280                 desc->id = id;
1281
1282                 /*
1283                  * Read and store the RANGE bit for later use
1284                  * This must be done before regulator is probed,
1285                  * otherwise we error in probe with unsupportable
1286                  * ranges. Read the current smps mode for later use.
1287                  */
1288                 addr = rinfo->vsel_addr;
1289
1290                 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1291                 if (ret)
1292                         return ret;
1293                 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE)
1294                         pmic->range[id] = 1;
1295
1296                 if (pmic->range[id])
1297                         desc->linear_ranges = smps_high_ranges;
1298                 else
1299                         desc->linear_ranges = smps_low_ranges;
1300
1301                 if (reg_init && reg_init->roof_floor)
1302                         desc->ops = &tps65917_ops_ext_control_smps;
1303                 else
1304                         desc->ops = &tps65917_ops_smps;
1305                 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
1306                 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1307                                                     rinfo->vsel_addr);
1308                 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
1309                 desc->ramp_delay = 2500;
1310
1311                 /* Read the smps mode for later use. */
1312                 addr = rinfo->ctrl_addr;
1313                 ret = palmas_smps_read(pmic->palmas, addr, &reg);
1314                 if (ret)
1315                         return ret;
1316                 pmic->current_reg_mode[id] = reg &
1317                                 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1318                 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
1319                                                       rinfo->ctrl_addr);
1320                 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
1321                 /* set_mode overrides this value */
1322                 desc->enable_val = SMPS_CTRL_MODE_ON;
1323
1324                 desc->type = REGULATOR_VOLTAGE;
1325                 desc->owner = THIS_MODULE;
1326
1327                 if (pdata)
1328                         config.init_data = pdata->reg_data[id];
1329                 else
1330                         config.init_data = NULL;
1331
1332                 desc->supply_name = rinfo->sname;
1333                 config.of_node = ddata->palmas_matches[id].of_node;
1334
1335                 rdev = devm_regulator_register(pmic->dev, desc, &config);
1336                 if (IS_ERR(rdev)) {
1337                         dev_err(pmic->dev,
1338                                 "failed to register %s regulator\n",
1339                                 pdev_name);
1340                         return PTR_ERR(rdev);
1341                 }
1342
1343                 /* Save regulator for cleanup */
1344                 pmic->rdev[id] = rdev;
1345         }
1346
1347         return 0;
1348 }
1349
1350 static struct of_regulator_match palmas_matches[] = {
1351         { .name = "smps12", },
1352         { .name = "smps123", },
1353         { .name = "smps3", },
1354         { .name = "smps45", },
1355         { .name = "smps457", },
1356         { .name = "smps6", },
1357         { .name = "smps7", },
1358         { .name = "smps8", },
1359         { .name = "smps9", },
1360         { .name = "smps10_out2", },
1361         { .name = "smps10_out1", },
1362         { .name = "ldo1", },
1363         { .name = "ldo2", },
1364         { .name = "ldo3", },
1365         { .name = "ldo4", },
1366         { .name = "ldo5", },
1367         { .name = "ldo6", },
1368         { .name = "ldo7", },
1369         { .name = "ldo8", },
1370         { .name = "ldo9", },
1371         { .name = "ldoln", },
1372         { .name = "ldousb", },
1373         { .name = "regen1", },
1374         { .name = "regen2", },
1375         { .name = "regen3", },
1376         { .name = "sysen1", },
1377         { .name = "sysen2", },
1378 };
1379
1380 static struct of_regulator_match tps65917_matches[] = {
1381         { .name = "smps1", },
1382         { .name = "smps2", },
1383         { .name = "smps3", },
1384         { .name = "smps4", },
1385         { .name = "smps5", },
1386         { .name = "ldo1", },
1387         { .name = "ldo2", },
1388         { .name = "ldo3", },
1389         { .name = "ldo4", },
1390         { .name = "ldo5", },
1391         { .name = "regen1", },
1392         { .name = "regen2", },
1393         { .name = "regen3", },
1394         { .name = "sysen1", },
1395         { .name = "sysen2", },
1396 };
1397
1398 static struct palmas_pmic_driver_data palmas_ddata = {
1399         .smps_start = PALMAS_REG_SMPS12,
1400         .smps_end = PALMAS_REG_SMPS10_OUT1,
1401         .ldo_begin = PALMAS_REG_LDO1,
1402         .ldo_end = PALMAS_REG_LDOUSB,
1403         .max_reg = PALMAS_NUM_REGS,
1404         .has_regen3 = true,
1405         .palmas_regs_info = palmas_generic_regs_info,
1406         .palmas_matches = palmas_matches,
1407         .sleep_req_info = palma_sleep_req_info,
1408         .smps_register = palmas_smps_registration,
1409         .ldo_register = palmas_ldo_registration,
1410 };
1411
1412 static struct palmas_pmic_driver_data tps65917_ddata = {
1413         .smps_start = TPS65917_REG_SMPS1,
1414         .smps_end = TPS65917_REG_SMPS5,
1415         .ldo_begin = TPS65917_REG_LDO1,
1416         .ldo_end = TPS65917_REG_LDO5,
1417         .max_reg = TPS65917_NUM_REGS,
1418         .has_regen3 = true,
1419         .palmas_regs_info = tps65917_regs_info,
1420         .palmas_matches = tps65917_matches,
1421         .sleep_req_info = tps65917_sleep_req_info,
1422         .smps_register = tps65917_smps_registration,
1423         .ldo_register = tps65917_ldo_registration,
1424 };
1425
1426 static void palmas_dt_to_pdata(struct device *dev,
1427                                struct device_node *node,
1428                                struct palmas_pmic_platform_data *pdata,
1429                                struct palmas_pmic_driver_data *ddata)
1430 {
1431         struct device_node *regulators;
1432         u32 prop;
1433         int idx, ret;
1434
1435         regulators = of_get_child_by_name(node, "regulators");
1436         if (!regulators) {
1437                 dev_info(dev, "regulator node not found\n");
1438                 return;
1439         }
1440
1441         ret = of_regulator_match(dev, regulators, ddata->palmas_matches,
1442                                  ddata->max_reg);
1443         of_node_put(regulators);
1444         if (ret < 0) {
1445                 dev_err(dev, "Error parsing regulator init data: %d\n", ret);
1446                 return;
1447         }
1448
1449         for (idx = 0; idx < ddata->max_reg; idx++) {
1450                 if (!ddata->palmas_matches[idx].init_data ||
1451                     !ddata->palmas_matches[idx].of_node)
1452                         continue;
1453
1454                 pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data;
1455
1456                 pdata->reg_init[idx] = devm_kzalloc(dev,
1457                                 sizeof(struct palmas_reg_init), GFP_KERNEL);
1458
1459                 pdata->reg_init[idx]->warm_reset =
1460                         of_property_read_bool(ddata->palmas_matches[idx].of_node,
1461                                               "ti,warm-reset");
1462
1463                 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
1464                                            "ti,roof-floor", &prop);
1465                 /* EINVAL: Property not found */
1466                 if (ret != -EINVAL) {
1467                         int econtrol;
1468
1469                         /* use default value, when no value is specified */
1470                         econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1471                         if (!ret) {
1472                                 switch (prop) {
1473                                 case 1:
1474                                         econtrol = PALMAS_EXT_CONTROL_ENABLE1;
1475                                         break;
1476                                 case 2:
1477                                         econtrol = PALMAS_EXT_CONTROL_ENABLE2;
1478                                         break;
1479                                 case 3:
1480                                         econtrol = PALMAS_EXT_CONTROL_NSLEEP;
1481                                         break;
1482                                 default:
1483                                         WARN_ON(1);
1484                                         dev_warn(dev,
1485                                                  "%s: Invalid roof-floor option: %u\n",
1486                                              palmas_matches[idx].name, prop);
1487                                         break;
1488                                 }
1489                         }
1490                         pdata->reg_init[idx]->roof_floor = econtrol;
1491                 }
1492
1493                 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node,
1494                                            "ti,mode-sleep", &prop);
1495                 if (!ret)
1496                         pdata->reg_init[idx]->mode_sleep = prop;
1497
1498                 ret = of_property_read_bool(ddata->palmas_matches[idx].of_node,
1499                                             "ti,smps-range");
1500                 if (ret)
1501                         pdata->reg_init[idx]->vsel =
1502                                 PALMAS_SMPS12_VOLTAGE_RANGE;
1503
1504                 if (idx == PALMAS_REG_LDO8)
1505                         pdata->enable_ldo8_tracking = of_property_read_bool(
1506                                                 ddata->palmas_matches[idx].of_node,
1507                                                 "ti,enable-ldo8-tracking");
1508         }
1509
1510         pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator");
1511 }
1512
1513 static const struct of_device_id of_palmas_match_tbl[] = {
1514         {
1515                 .compatible = "ti,palmas-pmic",
1516                 .data = &palmas_ddata,
1517         },
1518         {
1519                 .compatible = "ti,twl6035-pmic",
1520                 .data = &palmas_ddata,
1521         },
1522         {
1523                 .compatible = "ti,twl6036-pmic",
1524                 .data = &palmas_ddata,
1525         },
1526         {
1527                 .compatible = "ti,twl6037-pmic",
1528                 .data = &palmas_ddata,
1529         },
1530         {
1531                 .compatible = "ti,tps65913-pmic",
1532                 .data = &palmas_ddata,
1533         },
1534         {
1535                 .compatible = "ti,tps65914-pmic",
1536                 .data = &palmas_ddata,
1537         },
1538         {
1539                 .compatible = "ti,tps80036-pmic",
1540                 .data = &palmas_ddata,
1541         },
1542         {
1543                 .compatible = "ti,tps659038-pmic",
1544                 .data = &palmas_ddata,
1545         },
1546          {
1547                 .compatible = "ti,tps65917-pmic",
1548                 .data = &tps65917_ddata,
1549         },
1550         { /* end */ }
1551 };
1552
1553 static int palmas_regulators_probe(struct platform_device *pdev)
1554 {
1555         struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
1556         struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev);
1557         struct device_node *node = pdev->dev.of_node;
1558         struct palmas_pmic_driver_data *driver_data;
1559         struct regulator_config config = { };
1560         struct palmas_pmic *pmic;
1561         const char *pdev_name;
1562         const struct of_device_id *match;
1563         int ret = 0;
1564         unsigned int reg;
1565
1566         match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev);
1567
1568         if (!match)
1569                 return -ENODATA;
1570
1571         driver_data = (struct palmas_pmic_driver_data *)match->data;
1572         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1573         if (!pdata)
1574                 return -ENOMEM;
1575
1576         pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1577         if (!pmic)
1578                 return -ENOMEM;
1579
1580         if (of_device_is_compatible(node, "ti,tps659038-pmic")) {
1581                 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr =
1582                                                         TPS659038_REGEN2_CTRL;
1583                 palmas_ddata.has_regen3 = false;
1584         }
1585
1586         pmic->dev = &pdev->dev;
1587         pmic->palmas = palmas;
1588         palmas->pmic = pmic;
1589         platform_set_drvdata(pdev, pmic);
1590         pmic->palmas->pmic_ddata = driver_data;
1591
1592         palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data);
1593
1594         ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, &reg);
1595         if (ret)
1596                 return ret;
1597
1598         if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN)
1599                 pmic->smps123 = 1;
1600
1601         if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
1602                 pmic->smps457 = 1;
1603
1604         config.regmap = palmas->regmap[REGULATOR_SLAVE];
1605         config.dev = &pdev->dev;
1606         config.driver_data = pmic;
1607         pdev_name = pdev->name;
1608
1609         ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name,
1610                                          config);
1611         if (ret)
1612                 return ret;
1613
1614         ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name,
1615                                         config);
1616
1617         return ret;
1618 }
1619
1620 static struct platform_driver palmas_driver = {
1621         .driver = {
1622                 .name = "palmas-pmic",
1623                 .of_match_table = of_palmas_match_tbl,
1624         },
1625         .probe = palmas_regulators_probe,
1626 };
1627
1628 static int __init palmas_init(void)
1629 {
1630         return platform_driver_register(&palmas_driver);
1631 }
1632 subsys_initcall(palmas_init);
1633
1634 static void __exit palmas_exit(void)
1635 {
1636         platform_driver_unregister(&palmas_driver);
1637 }
1638 module_exit(palmas_exit);
1639
1640 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1641 MODULE_DESCRIPTION("Palmas voltage regulator driver");
1642 MODULE_LICENSE("GPL");
1643 MODULE_ALIAS("platform:palmas-pmic");
1644 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);