drivers/regulator/tps65910-regulator.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * tps65910.c  --  TI tps65910
   4  *
   5  * Copyright 2010 Texas Instruments Inc.
   6  *
   7  * Author: Graeme Gregory <gg@slimlogic.co.uk>
   8  * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/module.h>
  13 #include <linux/init.h>
  14 #include <linux/err.h>
  15 #include <linux/of.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/regulator/driver.h>
  18 #include <linux/regulator/machine.h>
  19 #include <linux/slab.h>
  20 #include <linux/gpio.h>
  21 #include <linux/mfd/tps65910.h>
  22 #include <linux/regulator/of_regulator.h>
  23
  24 #define TPS65910_SUPPLY_STATE_ENABLED   0x1
  25 #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 |       \
  26                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 |          \
  27                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 |          \
  28                         TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
  29
  30 /* supported VIO voltages in microvolts */
  31 static const unsigned int VIO_VSEL_table[] = {
  32         1500000, 1800000, 2500000, 3300000,
  33 };
  34
  35 /* VSEL tables for TPS65910 specific LDOs and dcdc's */
  36
  37 /* supported VRTC voltages in microvolts */
  38 static const unsigned int VRTC_VSEL_table[] = {
  39         1800000,
  40 };
  41
  42 /* supported VDD3 voltages in microvolts */
  43 static const unsigned int VDD3_VSEL_table[] = {
  44         5000000,
  45 };
  46
  47 /* supported VDIG1 voltages in microvolts */
  48 static const unsigned int VDIG1_VSEL_table[] = {
  49         1200000, 1500000, 1800000, 2700000,
  50 };
  51
  52 /* supported VDIG2 voltages in microvolts */
  53 static const unsigned int VDIG2_VSEL_table[] = {
  54         1000000, 1100000, 1200000, 1800000,
  55 };
  56
  57 /* supported VPLL voltages in microvolts */
  58 static const unsigned int VPLL_VSEL_table[] = {
  59         1000000, 1100000, 1800000, 2500000,
  60 };
  61
  62 /* supported VDAC voltages in microvolts */
  63 static const unsigned int VDAC_VSEL_table[] = {
  64         1800000, 2600000, 2800000, 2850000,
  65 };
  66
  67 /* supported VAUX1 voltages in microvolts */
  68 static const unsigned int VAUX1_VSEL_table[] = {
  69         1800000, 2500000, 2800000, 2850000,
  70 };
  71
  72 /* supported VAUX2 voltages in microvolts */
  73 static const unsigned int VAUX2_VSEL_table[] = {
  74         1800000, 2800000, 2900000, 3300000,
  75 };
  76
  77 /* supported VAUX33 voltages in microvolts */
  78 static const unsigned int VAUX33_VSEL_table[] = {
  79         1800000, 2000000, 2800000, 3300000,
  80 };
  81
  82 /* supported VMMC voltages in microvolts */
  83 static const unsigned int VMMC_VSEL_table[] = {
  84         1800000, 2800000, 3000000, 3300000,
  85 };
  86
  87 /* supported BBCH voltages in microvolts */
  88 static const unsigned int VBB_VSEL_table[] = {
  89         3000000, 2520000, 3150000, 5000000,
  90 };
  91
  92 struct tps_info {
  93         const char *name;
  94         const char *vin_name;
  95         u8 n_voltages;
  96         const unsigned int *voltage_table;
  97         int enable_time_us;
  98 };
  99
 100 static struct tps_info tps65910_regs[] = {
 101         {
 102                 .name = "vrtc",
 103                 .vin_name = "vcc7",
 104                 .n_voltages = ARRAY_SIZE(VRTC_VSEL_table),
 105                 .voltage_table = VRTC_VSEL_table,
 106                 .enable_time_us = 2200,
 107         },
 108         {
 109                 .name = "vio",
 110                 .vin_name = "vccio",
 111                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 112                 .voltage_table = VIO_VSEL_table,
 113                 .enable_time_us = 350,
 114         },
 115         {
 116                 .name = "vdd1",
 117                 .vin_name = "vcc1",
 118                 .enable_time_us = 350,
 119         },
 120         {
 121                 .name = "vdd2",
 122                 .vin_name = "vcc2",
 123                 .enable_time_us = 350,
 124         },
 125         {
 126                 .name = "vdd3",
 127                 .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
 128                 .voltage_table = VDD3_VSEL_table,
 129                 .enable_time_us = 200,
 130         },
 131         {
 132                 .name = "vdig1",
 133                 .vin_name = "vcc6",
 134                 .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
 135                 .voltage_table = VDIG1_VSEL_table,
 136                 .enable_time_us = 100,
 137         },
 138         {
 139                 .name = "vdig2",
 140                 .vin_name = "vcc6",
 141                 .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
 142                 .voltage_table = VDIG2_VSEL_table,
 143                 .enable_time_us = 100,
 144         },
 145         {
 146                 .name = "vpll",
 147                 .vin_name = "vcc5",
 148                 .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
 149                 .voltage_table = VPLL_VSEL_table,
 150                 .enable_time_us = 100,
 151         },
 152         {
 153                 .name = "vdac",
 154                 .vin_name = "vcc5",
 155                 .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
 156                 .voltage_table = VDAC_VSEL_table,
 157                 .enable_time_us = 100,
 158         },
 159         {
 160                 .name = "vaux1",
 161                 .vin_name = "vcc4",
 162                 .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
 163                 .voltage_table = VAUX1_VSEL_table,
 164                 .enable_time_us = 100,
 165         },
 166         {
 167                 .name = "vaux2",
 168                 .vin_name = "vcc4",
 169                 .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
 170                 .voltage_table = VAUX2_VSEL_table,
 171                 .enable_time_us = 100,
 172         },
 173         {
 174                 .name = "vaux33",
 175                 .vin_name = "vcc3",
 176                 .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
 177                 .voltage_table = VAUX33_VSEL_table,
 178                 .enable_time_us = 100,
 179         },
 180         {
 181                 .name = "vmmc",
 182                 .vin_name = "vcc3",
 183                 .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
 184                 .voltage_table = VMMC_VSEL_table,
 185                 .enable_time_us = 100,
 186         },
 187         {
 188                 .name = "vbb",
 189                 .vin_name = "vcc7",
 190                 .n_voltages = ARRAY_SIZE(VBB_VSEL_table),
 191                 .voltage_table = VBB_VSEL_table,
 192         },
 193 };
 194
 195 static struct tps_info tps65911_regs[] = {
 196         {
 197                 .name = "vrtc",
 198                 .vin_name = "vcc7",
 199                 .enable_time_us = 2200,
 200         },
 201         {
 202                 .name = "vio",
 203                 .vin_name = "vccio",
 204                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 205                 .voltage_table = VIO_VSEL_table,
 206                 .enable_time_us = 350,
 207         },
 208         {
 209                 .name = "vdd1",
 210                 .vin_name = "vcc1",
 211                 .n_voltages = 0x4C,
 212                 .enable_time_us = 350,
 213         },
 214         {
 215                 .name = "vdd2",
 216                 .vin_name = "vcc2",
 217                 .n_voltages = 0x4C,
 218                 .enable_time_us = 350,
 219         },
 220         {
 221                 .name = "vddctrl",
 222                 .n_voltages = 0x44,
 223                 .enable_time_us = 900,
 224         },
 225         {
 226                 .name = "ldo1",
 227                 .vin_name = "vcc6",
 228                 .n_voltages = 0x33,
 229                 .enable_time_us = 420,
 230         },
 231         {
 232                 .name = "ldo2",
 233                 .vin_name = "vcc6",
 234                 .n_voltages = 0x33,
 235                 .enable_time_us = 420,
 236         },
 237         {
 238                 .name = "ldo3",
 239                 .vin_name = "vcc5",
 240                 .n_voltages = 0x1A,
 241                 .enable_time_us = 230,
 242         },
 243         {
 244                 .name = "ldo4",
 245                 .vin_name = "vcc5",
 246                 .n_voltages = 0x33,
 247                 .enable_time_us = 230,
 248         },
 249         {
 250                 .name = "ldo5",
 251                 .vin_name = "vcc4",
 252                 .n_voltages = 0x1A,
 253                 .enable_time_us = 230,
 254         },
 255         {
 256                 .name = "ldo6",
 257                 .vin_name = "vcc3",
 258                 .n_voltages = 0x1A,
 259                 .enable_time_us = 230,
 260         },
 261         {
 262                 .name = "ldo7",
 263                 .vin_name = "vcc3",
 264                 .n_voltages = 0x1A,
 265                 .enable_time_us = 230,
 266         },
 267         {
 268                 .name = "ldo8",
 269                 .vin_name = "vcc3",
 270                 .n_voltages = 0x1A,
 271                 .enable_time_us = 230,
 272         },
 273 };
 274
 275 #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
 276 static unsigned int tps65910_ext_sleep_control[] = {
 277         0,
 278         EXT_CONTROL_REG_BITS(VIO,    1, 0),
 279         EXT_CONTROL_REG_BITS(VDD1,   1, 1),
 280         EXT_CONTROL_REG_BITS(VDD2,   1, 2),
 281         EXT_CONTROL_REG_BITS(VDD3,   1, 3),
 282         EXT_CONTROL_REG_BITS(VDIG1,  0, 1),
 283         EXT_CONTROL_REG_BITS(VDIG2,  0, 2),
 284         EXT_CONTROL_REG_BITS(VPLL,   0, 6),
 285         EXT_CONTROL_REG_BITS(VDAC,   0, 7),
 286         EXT_CONTROL_REG_BITS(VAUX1,  0, 3),
 287         EXT_CONTROL_REG_BITS(VAUX2,  0, 4),
 288         EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
 289         EXT_CONTROL_REG_BITS(VMMC,   0, 0),
 290 };
 291
 292 static unsigned int tps65911_ext_sleep_control[] = {
 293         0,
 294         EXT_CONTROL_REG_BITS(VIO,     1, 0),
 295         EXT_CONTROL_REG_BITS(VDD1,    1, 1),
 296         EXT_CONTROL_REG_BITS(VDD2,    1, 2),
 297         EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
 298         EXT_CONTROL_REG_BITS(LDO1,    0, 1),
 299         EXT_CONTROL_REG_BITS(LDO2,    0, 2),
 300         EXT_CONTROL_REG_BITS(LDO3,    0, 7),
 301         EXT_CONTROL_REG_BITS(LDO4,    0, 6),
 302         EXT_CONTROL_REG_BITS(LDO5,    0, 3),
 303         EXT_CONTROL_REG_BITS(LDO6,    0, 0),
 304         EXT_CONTROL_REG_BITS(LDO7,    0, 5),
 305         EXT_CONTROL_REG_BITS(LDO8,    0, 4),
 306 };
 307
 308 struct tps65910_reg {
 309         struct regulator_desc *desc;
 310         struct tps65910 *mfd;
 311         struct regulator_dev **rdev;
 312         struct tps_info **info;
 313         int num_regulators;
 314         int mode;
 315         int  (*get_ctrl_reg)(int);
 316         unsigned int *ext_sleep_control;
 317         unsigned int board_ext_control[TPS65910_NUM_REGS];
 318 };
 319
 320 static int tps65910_get_ctrl_register(int id)
 321 {
 322         switch (id) {
 323         case TPS65910_REG_VRTC:
 324                 return TPS65910_VRTC;
 325         case TPS65910_REG_VIO:
 326                 return TPS65910_VIO;
 327         case TPS65910_REG_VDD1:
 328                 return TPS65910_VDD1;
 329         case TPS65910_REG_VDD2:
 330                 return TPS65910_VDD2;
 331         case TPS65910_REG_VDD3:
 332                 return TPS65910_VDD3;
 333         case TPS65910_REG_VDIG1:
 334                 return TPS65910_VDIG1;
 335         case TPS65910_REG_VDIG2:
 336                 return TPS65910_VDIG2;
 337         case TPS65910_REG_VPLL:
 338                 return TPS65910_VPLL;
 339         case TPS65910_REG_VDAC:
 340                 return TPS65910_VDAC;
 341         case TPS65910_REG_VAUX1:
 342                 return TPS65910_VAUX1;
 343         case TPS65910_REG_VAUX2:
 344                 return TPS65910_VAUX2;
 345         case TPS65910_REG_VAUX33:
 346                 return TPS65910_VAUX33;
 347         case TPS65910_REG_VMMC:
 348                 return TPS65910_VMMC;
 349         case TPS65910_REG_VBB:
 350                 return TPS65910_BBCH;
 351         default:
 352                 return -EINVAL;
 353         }
 354 }
 355
 356 static int tps65911_get_ctrl_register(int id)
 357 {
 358         switch (id) {
 359         case TPS65910_REG_VRTC:
 360                 return TPS65910_VRTC;
 361         case TPS65910_REG_VIO:
 362                 return TPS65910_VIO;
 363         case TPS65910_REG_VDD1:
 364                 return TPS65910_VDD1;
 365         case TPS65910_REG_VDD2:
 366                 return TPS65910_VDD2;
 367         case TPS65911_REG_VDDCTRL:
 368                 return TPS65911_VDDCTRL;
 369         case TPS65911_REG_LDO1:
 370                 return TPS65911_LDO1;
 371         case TPS65911_REG_LDO2:
 372                 return TPS65911_LDO2;
 373         case TPS65911_REG_LDO3:
 374                 return TPS65911_LDO3;
 375         case TPS65911_REG_LDO4:
 376                 return TPS65911_LDO4;
 377         case TPS65911_REG_LDO5:
 378                 return TPS65911_LDO5;
 379         case TPS65911_REG_LDO6:
 380                 return TPS65911_LDO6;
 381         case TPS65911_REG_LDO7:
 382                 return TPS65911_LDO7;
 383         case TPS65911_REG_LDO8:
 384                 return TPS65911_LDO8;
 385         default:
 386                 return -EINVAL;
 387         }
 388 }
 389
 390 static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
 391 {
 392         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 393         struct tps65910 *mfd = pmic->mfd;
 394         int reg, value, id = rdev_get_id(dev);
 395
 396         reg = pmic->get_ctrl_reg(id);
 397         if (reg < 0)
 398                 return reg;
 399
 400         switch (mode) {
 401         case REGULATOR_MODE_NORMAL:
 402                 return tps65910_reg_update_bits(pmic->mfd, reg,
 403                                                 LDO_ST_MODE_BIT | LDO_ST_ON_BIT,
 404                                                 LDO_ST_ON_BIT);
 405         case REGULATOR_MODE_IDLE:
 406                 value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
 407                 return tps65910_reg_set_bits(mfd, reg, value);
 408         case REGULATOR_MODE_STANDBY:
 409                 return tps65910_reg_clear_bits(mfd, reg, LDO_ST_ON_BIT);
 410         }
 411
 412         return -EINVAL;
 413 }
 414
 415 static unsigned int tps65910_get_mode(struct regulator_dev *dev)
 416 {
 417         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 418         int ret, reg, value, id = rdev_get_id(dev);
 419
 420         reg = pmic->get_ctrl_reg(id);
 421         if (reg < 0)
 422                 return reg;
 423
 424         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 425         if (ret < 0)
 426                 return ret;
 427
 428         if (!(value & LDO_ST_ON_BIT))
 429                 return REGULATOR_MODE_STANDBY;
 430         else if (value & LDO_ST_MODE_BIT)
 431                 return REGULATOR_MODE_IDLE;
 432         else
 433                 return REGULATOR_MODE_NORMAL;
 434 }
 435
 436 static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
 437 {
 438         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 439         int ret, id = rdev_get_id(dev);
 440         int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
 441
 442         switch (id) {
 443         case TPS65910_REG_VDD1:
 444                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_OP, &opvsel);
 445                 if (ret < 0)
 446                         return ret;
 447                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1, &mult);
 448                 if (ret < 0)
 449                         return ret;
 450                 mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
 451                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD1_SR, &srvsel);
 452                 if (ret < 0)
 453                         return ret;
 454                 sr = opvsel & VDD1_OP_CMD_MASK;
 455                 opvsel &= VDD1_OP_SEL_MASK;
 456                 srvsel &= VDD1_SR_SEL_MASK;
 457                 vselmax = 75;
 458                 break;
 459         case TPS65910_REG_VDD2:
 460                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_OP, &opvsel);
 461                 if (ret < 0)
 462                         return ret;
 463                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2, &mult);
 464                 if (ret < 0)
 465                         return ret;
 466                 mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
 467                 ret = tps65910_reg_read(pmic->mfd, TPS65910_VDD2_SR, &srvsel);
 468                 if (ret < 0)
 469                         return ret;
 470                 sr = opvsel & VDD2_OP_CMD_MASK;
 471                 opvsel &= VDD2_OP_SEL_MASK;
 472                 srvsel &= VDD2_SR_SEL_MASK;
 473                 vselmax = 75;
 474                 break;
 475         case TPS65911_REG_VDDCTRL:
 476                 ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_OP,
 477                                         &opvsel);
 478                 if (ret < 0)
 479                         return ret;
 480                 ret = tps65910_reg_read(pmic->mfd, TPS65911_VDDCTRL_SR,
 481                                         &srvsel);
 482                 if (ret < 0)
 483                         return ret;
 484                 sr = opvsel & VDDCTRL_OP_CMD_MASK;
 485                 opvsel &= VDDCTRL_OP_SEL_MASK;
 486                 srvsel &= VDDCTRL_SR_SEL_MASK;
 487                 vselmax = 64;
 488                 break;
 489         }
 490
 491         /* multiplier 0 == 1 but 2,3 normal */
 492         if (!mult)
 493                 mult = 1;
 494
 495         if (sr) {
 496                 /* normalise to valid range */
 497                 if (srvsel < 3)
 498                         srvsel = 3;
 499                 if (srvsel > vselmax)
 500                         srvsel = vselmax;
 501                 return srvsel - 3;
 502         } else {
 503
 504                 /* normalise to valid range*/
 505                 if (opvsel < 3)
 506                         opvsel = 3;
 507                 if (opvsel > vselmax)
 508                         opvsel = vselmax;
 509                 return opvsel - 3;
 510         }
 511         return -EINVAL;
 512 }
 513
 514 static int tps65910_get_voltage_sel(struct regulator_dev *dev)
 515 {
 516         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 517         int ret, reg, value, id = rdev_get_id(dev);
 518
 519         reg = pmic->get_ctrl_reg(id);
 520         if (reg < 0)
 521                 return reg;
 522
 523         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 524         if (ret < 0)
 525                 return ret;
 526
 527         switch (id) {
 528         case TPS65910_REG_VIO:
 529         case TPS65910_REG_VDIG1:
 530         case TPS65910_REG_VDIG2:
 531         case TPS65910_REG_VPLL:
 532         case TPS65910_REG_VDAC:
 533         case TPS65910_REG_VAUX1:
 534         case TPS65910_REG_VAUX2:
 535         case TPS65910_REG_VAUX33:
 536         case TPS65910_REG_VMMC:
 537                 value &= LDO_SEL_MASK;
 538                 value >>= LDO_SEL_SHIFT;
 539                 break;
 540         case TPS65910_REG_VBB:
 541                 value &= BBCH_BBSEL_MASK;
 542                 value >>= BBCH_BBSEL_SHIFT;
 543                 break;
 544         default:
 545                 return -EINVAL;
 546         }
 547
 548         return value;
 549 }
 550
 551 static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
 552 {
 553         return dev->desc->volt_table[0];
 554 }
 555
 556 static int tps65911_get_voltage_sel(struct regulator_dev *dev)
 557 {
 558         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 559         int ret, id = rdev_get_id(dev);
 560         unsigned int value, reg;
 561
 562         reg = pmic->get_ctrl_reg(id);
 563
 564         ret = tps65910_reg_read(pmic->mfd, reg, &value);
 565         if (ret < 0)
 566                 return ret;
 567
 568         switch (id) {
 569         case TPS65911_REG_LDO1:
 570         case TPS65911_REG_LDO2:
 571         case TPS65911_REG_LDO4:
 572                 value &= LDO1_SEL_MASK;
 573                 value >>= LDO_SEL_SHIFT;
 574                 break;
 575         case TPS65911_REG_LDO3:
 576         case TPS65911_REG_LDO5:
 577         case TPS65911_REG_LDO6:
 578         case TPS65911_REG_LDO7:
 579         case TPS65911_REG_LDO8:
 580                 value &= LDO3_SEL_MASK;
 581                 value >>= LDO_SEL_SHIFT;
 582                 break;
 583         case TPS65910_REG_VIO:
 584                 value &= LDO_SEL_MASK;
 585                 value >>= LDO_SEL_SHIFT;
 586                 break;
 587         default:
 588                 return -EINVAL;
 589         }
 590
 591         return value;
 592 }
 593
 594 static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
 595                                          unsigned selector)
 596 {
 597         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 598         int id = rdev_get_id(dev), vsel;
 599         int dcdc_mult = 0;
 600
 601         switch (id) {
 602         case TPS65910_REG_VDD1:
 603                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 604                 if (dcdc_mult == 1)
 605                         dcdc_mult--;
 606                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
 607
 608                 tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD1,
 609                                          VDD1_VGAIN_SEL_MASK,
 610                                          dcdc_mult << VDD1_VGAIN_SEL_SHIFT);
 611                 tps65910_reg_write(pmic->mfd, TPS65910_VDD1_OP, vsel);
 612                 break;
 613         case TPS65910_REG_VDD2:
 614                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 615                 if (dcdc_mult == 1)
 616                         dcdc_mult--;
 617                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
 618
 619                 tps65910_reg_update_bits(pmic->mfd, TPS65910_VDD2,
 620                                          VDD1_VGAIN_SEL_MASK,
 621                                          dcdc_mult << VDD2_VGAIN_SEL_SHIFT);
 622                 tps65910_reg_write(pmic->mfd, TPS65910_VDD2_OP, vsel);
 623                 break;
 624         case TPS65911_REG_VDDCTRL:
 625                 vsel = selector + 3;
 626                 tps65910_reg_write(pmic->mfd, TPS65911_VDDCTRL_OP, vsel);
 627         }
 628
 629         return 0;
 630 }
 631
 632 static int tps65910_set_voltage_sel(struct regulator_dev *dev,
 633                                     unsigned selector)
 634 {
 635         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 636         int reg, id = rdev_get_id(dev);
 637
 638         reg = pmic->get_ctrl_reg(id);
 639         if (reg < 0)
 640                 return reg;
 641
 642         switch (id) {
 643         case TPS65910_REG_VIO:
 644         case TPS65910_REG_VDIG1:
 645         case TPS65910_REG_VDIG2:
 646         case TPS65910_REG_VPLL:
 647         case TPS65910_REG_VDAC:
 648         case TPS65910_REG_VAUX1:
 649         case TPS65910_REG_VAUX2:
 650         case TPS65910_REG_VAUX33:
 651         case TPS65910_REG_VMMC:
 652                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
 653                                                 selector << LDO_SEL_SHIFT);
 654         case TPS65910_REG_VBB:
 655                 return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
 656                                                 selector << BBCH_BBSEL_SHIFT);
 657         }
 658
 659         return -EINVAL;
 660 }
 661
 662 static int tps65911_set_voltage_sel(struct regulator_dev *dev,
 663                                     unsigned selector)
 664 {
 665         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 666         int reg, id = rdev_get_id(dev);
 667
 668         reg = pmic->get_ctrl_reg(id);
 669         if (reg < 0)
 670                 return reg;
 671
 672         switch (id) {
 673         case TPS65911_REG_LDO1:
 674         case TPS65911_REG_LDO2:
 675         case TPS65911_REG_LDO4:
 676                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO1_SEL_MASK,
 677                                                 selector << LDO_SEL_SHIFT);
 678         case TPS65911_REG_LDO3:
 679         case TPS65911_REG_LDO5:
 680         case TPS65911_REG_LDO6:
 681         case TPS65911_REG_LDO7:
 682         case TPS65911_REG_LDO8:
 683                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO3_SEL_MASK,
 684                                                 selector << LDO_SEL_SHIFT);
 685         case TPS65910_REG_VIO:
 686                 return tps65910_reg_update_bits(pmic->mfd, reg, LDO_SEL_MASK,
 687                                                 selector << LDO_SEL_SHIFT);
 688         case TPS65910_REG_VBB:
 689                 return tps65910_reg_update_bits(pmic->mfd, reg, BBCH_BBSEL_MASK,
 690                                                 selector << BBCH_BBSEL_SHIFT);
 691         }
 692
 693         return -EINVAL;
 694 }
 695
 696
 697 static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
 698                                         unsigned selector)
 699 {
 700         int volt, mult = 1, id = rdev_get_id(dev);
 701
 702         switch (id) {
 703         case TPS65910_REG_VDD1:
 704         case TPS65910_REG_VDD2:
 705                 mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 706                 volt = VDD1_2_MIN_VOLT +
 707                         (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
 708                 break;
 709         case TPS65911_REG_VDDCTRL:
 710                 volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
 711                 break;
 712         default:
 713                 BUG();
 714                 return -EINVAL;
 715         }
 716
 717         return  volt * 100 * mult;
 718 }
 719
 720 static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
 721 {
 722         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 723         int step_mv = 0, id = rdev_get_id(dev);
 724
 725         switch (id) {
 726         case TPS65911_REG_LDO1:
 727         case TPS65911_REG_LDO2:
 728         case TPS65911_REG_LDO4:
 729                 /* The first 5 values of the selector correspond to 1V */
 730                 if (selector < 5)
 731                         selector = 0;
 732                 else
 733                         selector -= 4;
 734
 735                 step_mv = 50;
 736                 break;
 737         case TPS65911_REG_LDO3:
 738         case TPS65911_REG_LDO5:
 739         case TPS65911_REG_LDO6:
 740         case TPS65911_REG_LDO7:
 741         case TPS65911_REG_LDO8:
 742                 /* The first 3 values of the selector correspond to 1V */
 743                 if (selector < 3)
 744                         selector = 0;
 745                 else
 746                         selector -= 2;
 747
 748                 step_mv = 100;
 749                 break;
 750         case TPS65910_REG_VIO:
 751                 return pmic->info[id]->voltage_table[selector];
 752         default:
 753                 return -EINVAL;
 754         }
 755
 756         return (LDO_MIN_VOLT + selector * step_mv) * 1000;
 757 }
 758
 759 /* Regulator ops (except VRTC) */
 760 static struct regulator_ops tps65910_ops_dcdc = {
 761         .is_enabled             = regulator_is_enabled_regmap,
 762         .enable                 = regulator_enable_regmap,
 763         .disable                = regulator_disable_regmap,
 764         .set_mode               = tps65910_set_mode,
 765         .get_mode               = tps65910_get_mode,
 766         .get_voltage_sel        = tps65910_get_voltage_dcdc_sel,
 767         .set_voltage_sel        = tps65910_set_voltage_dcdc_sel,
 768         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 769         .list_voltage           = tps65910_list_voltage_dcdc,
 770         .map_voltage            = regulator_map_voltage_ascend,
 771 };
 772
 773 static struct regulator_ops tps65910_ops_vdd3 = {
 774         .is_enabled             = regulator_is_enabled_regmap,
 775         .enable                 = regulator_enable_regmap,
 776         .disable                = regulator_disable_regmap,
 777         .set_mode               = tps65910_set_mode,
 778         .get_mode               = tps65910_get_mode,
 779         .get_voltage            = tps65910_get_voltage_vdd3,
 780         .list_voltage           = regulator_list_voltage_table,
 781         .map_voltage            = regulator_map_voltage_ascend,
 782 };
 783
 784 static struct regulator_ops tps65910_ops_vbb = {
 785         .is_enabled             = regulator_is_enabled_regmap,
 786         .enable                 = regulator_enable_regmap,
 787         .disable                = regulator_disable_regmap,
 788         .set_mode               = tps65910_set_mode,
 789         .get_mode               = tps65910_get_mode,
 790         .get_voltage_sel        = tps65910_get_voltage_sel,
 791         .set_voltage_sel        = tps65910_set_voltage_sel,
 792         .list_voltage           = regulator_list_voltage_table,
 793         .map_voltage            = regulator_map_voltage_iterate,
 794 };
 795
 796 static struct regulator_ops tps65910_ops = {
 797         .is_enabled             = regulator_is_enabled_regmap,
 798         .enable                 = regulator_enable_regmap,
 799         .disable                = regulator_disable_regmap,
 800         .set_mode               = tps65910_set_mode,
 801         .get_mode               = tps65910_get_mode,
 802         .get_voltage_sel        = tps65910_get_voltage_sel,
 803         .set_voltage_sel        = tps65910_set_voltage_sel,
 804         .list_voltage           = regulator_list_voltage_table,
 805         .map_voltage            = regulator_map_voltage_ascend,
 806 };
 807
 808 static struct regulator_ops tps65911_ops = {
 809         .is_enabled             = regulator_is_enabled_regmap,
 810         .enable                 = regulator_enable_regmap,
 811         .disable                = regulator_disable_regmap,
 812         .set_mode               = tps65910_set_mode,
 813         .get_mode               = tps65910_get_mode,
 814         .get_voltage_sel        = tps65911_get_voltage_sel,
 815         .set_voltage_sel        = tps65911_set_voltage_sel,
 816         .list_voltage           = tps65911_list_voltage,
 817         .map_voltage            = regulator_map_voltage_ascend,
 818 };
 819
 820 static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
 821                 int id, int ext_sleep_config)
 822 {
 823         struct tps65910 *mfd = pmic->mfd;
 824         u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
 825         u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
 826         int ret;
 827
 828         /*
 829          * Regulator can not be control from multiple external input EN1, EN2
 830          * and EN3 together.
 831          */
 832         if (ext_sleep_config & EXT_SLEEP_CONTROL) {
 833                 int en_count;
 834                 en_count = ((ext_sleep_config &
 835                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
 836                 en_count += ((ext_sleep_config &
 837                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
 838                 en_count += ((ext_sleep_config &
 839                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
 840                 en_count += ((ext_sleep_config &
 841                                 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
 842                 if (en_count > 1) {
 843                         dev_err(mfd->dev,
 844                                 "External sleep control flag is not proper\n");
 845                         return -EINVAL;
 846                 }
 847         }
 848
 849         pmic->board_ext_control[id] = ext_sleep_config;
 850
 851         /* External EN1 control */
 852         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
 853                 ret = tps65910_reg_set_bits(mfd,
 854                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 855         else
 856                 ret = tps65910_reg_clear_bits(mfd,
 857                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 858         if (ret < 0) {
 859                 dev_err(mfd->dev,
 860                         "Error in configuring external control EN1\n");
 861                 return ret;
 862         }
 863
 864         /* External EN2 control */
 865         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
 866                 ret = tps65910_reg_set_bits(mfd,
 867                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 868         else
 869                 ret = tps65910_reg_clear_bits(mfd,
 870                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 871         if (ret < 0) {
 872                 dev_err(mfd->dev,
 873                         "Error in configuring external control EN2\n");
 874                 return ret;
 875         }
 876
 877         /* External EN3 control for TPS65910 LDO only */
 878         if ((tps65910_chip_id(mfd) == TPS65910) &&
 879                         (id >= TPS65910_REG_VDIG1)) {
 880                 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
 881                         ret = tps65910_reg_set_bits(mfd,
 882                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 883                 else
 884                         ret = tps65910_reg_clear_bits(mfd,
 885                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 886                 if (ret < 0) {
 887                         dev_err(mfd->dev,
 888                                 "Error in configuring external control EN3\n");
 889                         return ret;
 890                 }
 891         }
 892
 893         /* Return if no external control is selected */
 894         if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
 895                 /* Clear all sleep controls */
 896                 ret = tps65910_reg_clear_bits(mfd,
 897                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
 898                 if (!ret)
 899                         ret = tps65910_reg_clear_bits(mfd,
 900                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 901                 if (ret < 0)
 902                         dev_err(mfd->dev,
 903                                 "Error in configuring SLEEP register\n");
 904                 return ret;
 905         }
 906
 907         /*
 908          * For regulator that has separate operational and sleep register make
 909          * sure that operational is used and clear sleep register to turn
 910          * regulator off when external control is inactive
 911          */
 912         if ((id == TPS65910_REG_VDD1) ||
 913                 (id == TPS65910_REG_VDD2) ||
 914                         ((id == TPS65911_REG_VDDCTRL) &&
 915                                 (tps65910_chip_id(mfd) == TPS65911))) {
 916                 int op_reg_add = pmic->get_ctrl_reg(id) + 1;
 917                 int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
 918                 int opvsel, srvsel;
 919
 920                 ret = tps65910_reg_read(pmic->mfd, op_reg_add, &opvsel);
 921                 if (ret < 0)
 922                         return ret;
 923                 ret = tps65910_reg_read(pmic->mfd, sr_reg_add, &srvsel);
 924                 if (ret < 0)
 925                         return ret;
 926
 927                 if (opvsel & VDD1_OP_CMD_MASK) {
 928                         u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
 929
 930                         ret = tps65910_reg_write(pmic->mfd, op_reg_add,
 931                                                  reg_val);
 932                         if (ret < 0) {
 933                                 dev_err(mfd->dev,
 934                                         "Error in configuring op register\n");
 935                                 return ret;
 936                         }
 937                 }
 938                 ret = tps65910_reg_write(pmic->mfd, sr_reg_add, 0);
 939                 if (ret < 0) {
 940                         dev_err(mfd->dev, "Error in setting sr register\n");
 941                         return ret;
 942                 }
 943         }
 944
 945         ret = tps65910_reg_clear_bits(mfd,
 946                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
 947         if (!ret) {
 948                 if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
 949                         ret = tps65910_reg_set_bits(mfd,
 950                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 951                 else
 952                         ret = tps65910_reg_clear_bits(mfd,
 953                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 954         }
 955         if (ret < 0)
 956                 dev_err(mfd->dev,
 957                         "Error in configuring SLEEP register\n");
 958
 959         return ret;
 960 }
 961
 962 #ifdef CONFIG_OF
 963
 964 static struct of_regulator_match tps65910_matches[] = {
 965         { .name = "vrtc",       .driver_data = (void *) &tps65910_regs[0] },
 966         { .name = "vio",        .driver_data = (void *) &tps65910_regs[1] },
 967         { .name = "vdd1",       .driver_data = (void *) &tps65910_regs[2] },
 968         { .name = "vdd2",       .driver_data = (void *) &tps65910_regs[3] },
 969         { .name = "vdd3",       .driver_data = (void *) &tps65910_regs[4] },
 970         { .name = "vdig1",      .driver_data = (void *) &tps65910_regs[5] },
 971         { .name = "vdig2",      .driver_data = (void *) &tps65910_regs[6] },
 972         { .name = "vpll",       .driver_data = (void *) &tps65910_regs[7] },
 973         { .name = "vdac",       .driver_data = (void *) &tps65910_regs[8] },
 974         { .name = "vaux1",      .driver_data = (void *) &tps65910_regs[9] },
 975         { .name = "vaux2",      .driver_data = (void *) &tps65910_regs[10] },
 976         { .name = "vaux33",     .driver_data = (void *) &tps65910_regs[11] },
 977         { .name = "vmmc",       .driver_data = (void *) &tps65910_regs[12] },
 978         { .name = "vbb",        .driver_data = (void *) &tps65910_regs[13] },
 979 };
 980
 981 static struct of_regulator_match tps65911_matches[] = {
 982         { .name = "vrtc",       .driver_data = (void *) &tps65911_regs[0] },
 983         { .name = "vio",        .driver_data = (void *) &tps65911_regs[1] },
 984         { .name = "vdd1",       .driver_data = (void *) &tps65911_regs[2] },
 985         { .name = "vdd2",       .driver_data = (void *) &tps65911_regs[3] },
 986         { .name = "vddctrl",    .driver_data = (void *) &tps65911_regs[4] },
 987         { .name = "ldo1",       .driver_data = (void *) &tps65911_regs[5] },
 988         { .name = "ldo2",       .driver_data = (void *) &tps65911_regs[6] },
 989         { .name = "ldo3",       .driver_data = (void *) &tps65911_regs[7] },
 990         { .name = "ldo4",       .driver_data = (void *) &tps65911_regs[8] },
 991         { .name = "ldo5",       .driver_data = (void *) &tps65911_regs[9] },
 992         { .name = "ldo6",       .driver_data = (void *) &tps65911_regs[10] },
 993         { .name = "ldo7",       .driver_data = (void *) &tps65911_regs[11] },
 994         { .name = "ldo8",       .driver_data = (void *) &tps65911_regs[12] },
 995 };
 996
 997 static struct tps65910_board *tps65910_parse_dt_reg_data(
 998                 struct platform_device *pdev,
 999                 struct of_regulator_match **tps65910_reg_matches)
1000 {
1001         struct tps65910_board *pmic_plat_data;
1002         struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1003         struct device_node *np, *regulators;
1004         struct of_regulator_match *matches;
1005         unsigned int prop;
1006         int idx = 0, ret, count;
1007
1008         pmic_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pmic_plat_data),
1009                                         GFP_KERNEL);
1010         if (!pmic_plat_data)
1011                 return NULL;
1012
1013         np = pdev->dev.parent->of_node;
1014         regulators = of_get_child_by_name(np, "regulators");
1015         if (!regulators) {
1016                 dev_err(&pdev->dev, "regulator node not found\n");
1017                 return NULL;
1018         }
1019
1020         switch (tps65910_chip_id(tps65910)) {
1021         case TPS65910:
1022                 count = ARRAY_SIZE(tps65910_matches);
1023                 matches = tps65910_matches;
1024                 break;
1025         case TPS65911:
1026                 count = ARRAY_SIZE(tps65911_matches);
1027                 matches = tps65911_matches;
1028                 break;
1029         default:
1030                 of_node_put(regulators);
1031                 dev_err(&pdev->dev, "Invalid tps chip version\n");
1032                 return NULL;
1033         }
1034
1035         ret = of_regulator_match(&pdev->dev, regulators, matches, count);
1036         of_node_put(regulators);
1037         if (ret < 0) {
1038                 dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
1039                         ret);
1040                 return NULL;
1041         }
1042
1043         *tps65910_reg_matches = matches;
1044
1045         for (idx = 0; idx < count; idx++) {
1046                 if (!matches[idx].of_node)
1047                         continue;
1048
1049                 pmic_plat_data->tps65910_pmic_init_data[idx] =
1050                                                         matches[idx].init_data;
1051
1052                 ret = of_property_read_u32(matches[idx].of_node,
1053                                 "ti,regulator-ext-sleep-control", &prop);
1054                 if (!ret)
1055                         pmic_plat_data->regulator_ext_sleep_control[idx] = prop;
1056
1057         }
1058
1059         return pmic_plat_data;
1060 }
1061 #else
1062 static inline struct tps65910_board *tps65910_parse_dt_reg_data(
1063                         struct platform_device *pdev,
1064                         struct of_regulator_match **tps65910_reg_matches)
1065 {
1066         *tps65910_reg_matches = NULL;
1067         return NULL;
1068 }
1069 #endif
1070
1071 static int tps65910_probe(struct platform_device *pdev)
1072 {
1073         struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
1074         struct regulator_config config = { };
1075         struct tps_info *info;
1076         struct regulator_dev *rdev;
1077         struct tps65910_reg *pmic;
1078         struct tps65910_board *pmic_plat_data;
1079         struct of_regulator_match *tps65910_reg_matches = NULL;
1080         int i, err;
1081
1082         pmic_plat_data = dev_get_platdata(tps65910->dev);
1083         if (!pmic_plat_data && tps65910->dev->of_node)
1084                 pmic_plat_data = tps65910_parse_dt_reg_data(pdev,
1085                                                 &tps65910_reg_matches);
1086
1087         if (!pmic_plat_data) {
1088                 dev_err(&pdev->dev, "Platform data not found\n");
1089                 return -EINVAL;
1090         }
1091
1092         pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
1093         if (!pmic)
1094                 return -ENOMEM;
1095
1096         pmic->mfd = tps65910;
1097         platform_set_drvdata(pdev, pmic);
1098
1099         /* Give control of all register to control port */
1100         err = tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
1101                                 DEVCTRL_SR_CTL_I2C_SEL_MASK);
1102         if (err < 0)
1103                 return err;
1104
1105         switch (tps65910_chip_id(tps65910)) {
1106         case TPS65910:
1107                 BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65910_regs));
1108                 pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
1109                 pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
1110                 pmic->ext_sleep_control = tps65910_ext_sleep_control;
1111                 info = tps65910_regs;
1112                 /* Work around silicon erratum SWCZ010: output programmed
1113                  * voltage level can go higher than expected or crash
1114                  * Workaround: use no synchronization of DCDC clocks
1115                  */
1116                 tps65910_reg_clear_bits(pmic->mfd, TPS65910_DCDCCTRL,
1117                                         DCDCCTRL_DCDCCKSYNC_MASK);
1118                 break;
1119         case TPS65911:
1120                 BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65911_regs));
1121                 pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
1122                 pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
1123                 pmic->ext_sleep_control = tps65911_ext_sleep_control;
1124                 info = tps65911_regs;
1125                 break;
1126         default:
1127                 dev_err(&pdev->dev, "Invalid tps chip version\n");
1128                 return -ENODEV;
1129         }
1130
1131         pmic->desc = devm_kcalloc(&pdev->dev,
1132                                   pmic->num_regulators,
1133                                   sizeof(struct regulator_desc),
1134                                   GFP_KERNEL);
1135         if (!pmic->desc)
1136                 return -ENOMEM;
1137
1138         pmic->info = devm_kcalloc(&pdev->dev,
1139                                   pmic->num_regulators,
1140                                   sizeof(struct tps_info *),
1141                                   GFP_KERNEL);
1142         if (!pmic->info)
1143                 return -ENOMEM;
1144
1145         pmic->rdev = devm_kcalloc(&pdev->dev,
1146                                   pmic->num_regulators,
1147                                   sizeof(struct regulator_dev *),
1148                                   GFP_KERNEL);
1149         if (!pmic->rdev)
1150                 return -ENOMEM;
1151
1152         for (i = 0; i < pmic->num_regulators; i++, info++) {
1153                 /* Register the regulators */
1154                 pmic->info[i] = info;
1155
1156                 pmic->desc[i].name = info->name;
1157                 pmic->desc[i].supply_name = info->vin_name;
1158                 pmic->desc[i].id = i;
1159                 pmic->desc[i].n_voltages = info->n_voltages;
1160                 pmic->desc[i].enable_time = info->enable_time_us;
1161
1162                 if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
1163                         pmic->desc[i].ops = &tps65910_ops_dcdc;
1164                         pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
1165                                                         VDD1_2_NUM_VOLT_COARSE;
1166                         pmic->desc[i].ramp_delay = 12500;
1167                 } else if (i == TPS65910_REG_VDD3) {
1168                         if (tps65910_chip_id(tps65910) == TPS65910) {
1169                                 pmic->desc[i].ops = &tps65910_ops_vdd3;
1170                                 pmic->desc[i].volt_table = info->voltage_table;
1171                         } else {
1172                                 pmic->desc[i].ops = &tps65910_ops_dcdc;
1173                                 pmic->desc[i].ramp_delay = 5000;
1174                         }
1175                 } else if (i == TPS65910_REG_VBB &&
1176                                 tps65910_chip_id(tps65910) == TPS65910) {
1177                         pmic->desc[i].ops = &tps65910_ops_vbb;
1178                         pmic->desc[i].volt_table = info->voltage_table;
1179                 } else {
1180                         if (tps65910_chip_id(tps65910) == TPS65910) {
1181                                 pmic->desc[i].ops = &tps65910_ops;
1182                                 pmic->desc[i].volt_table = info->voltage_table;
1183                         } else {
1184                                 pmic->desc[i].ops = &tps65911_ops;
1185                         }
1186                 }
1187
1188                 err = tps65910_set_ext_sleep_config(pmic, i,
1189                                 pmic_plat_data->regulator_ext_sleep_control[i]);
1190                 /*
1191                  * Failing on regulator for configuring externally control
1192                  * is not a serious issue, just throw warning.
1193                  */
1194                 if (err < 0)
1195                         dev_warn(tps65910->dev,
1196                                 "Failed to initialise ext control config\n");
1197
1198                 pmic->desc[i].type = REGULATOR_VOLTAGE;
1199                 pmic->desc[i].owner = THIS_MODULE;
1200                 pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i);
1201                 pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED;
1202
1203                 config.dev = tps65910->dev;
1204                 config.init_data = pmic_plat_data->tps65910_pmic_init_data[i];
1205                 config.driver_data = pmic;
1206                 config.regmap = tps65910->regmap;
1207
1208                 if (tps65910_reg_matches)
1209                         config.of_node = tps65910_reg_matches[i].of_node;
1210
1211                 rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
1212                                                &config);
1213                 if (IS_ERR(rdev)) {
1214                         dev_err(tps65910->dev,
1215                                 "failed to register %s regulator\n",
1216                                 pdev->name);
1217                         return PTR_ERR(rdev);
1218                 }
1219
1220                 /* Save regulator for cleanup */
1221                 pmic->rdev[i] = rdev;
1222         }
1223         return 0;
1224 }
1225
1226 static void tps65910_shutdown(struct platform_device *pdev)
1227 {
1228         struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1229         int i;
1230
1231         /*
1232          * Before bootloader jumps to kernel, it makes sure that required
1233          * external control signals are in desired state so that given rails
1234          * can be configure accordingly.
1235          * If rails are configured to be controlled from external control
1236          * then before shutting down/rebooting the system, the external
1237          * control configuration need to be remove from the rails so that
1238          * its output will be available as per register programming even
1239          * if external controls are removed. This is require when the POR
1240          * value of the control signals are not in active state and before
1241          * bootloader initializes it, the system requires the rail output
1242          * to be active for booting.
1243          */
1244         for (i = 0; i < pmic->num_regulators; i++) {
1245                 int err;
1246                 if (!pmic->rdev[i])
1247                         continue;
1248
1249                 err = tps65910_set_ext_sleep_config(pmic, i, 0);
1250                 if (err < 0)
1251                         dev_err(&pdev->dev,
1252                                 "Error in clearing external control\n");
1253         }
1254 }
1255
1256 static struct platform_driver tps65910_driver = {
1257         .driver = {
1258                 .name = "tps65910-pmic",
1259         },
1260         .probe = tps65910_probe,
1261         .shutdown = tps65910_shutdown,
1262 };
1263
1264 static int __init tps65910_init(void)
1265 {
1266         return platform_driver_register(&tps65910_driver);
1267 }
1268 subsys_initcall(tps65910_init);
1269
1270 static void __exit tps65910_cleanup(void)
1271 {
1272         platform_driver_unregister(&tps65910_driver);
1273 }
1274 module_exit(tps65910_cleanup);
1275
1276 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1277 MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
1278 MODULE_LICENSE("GPL v2");
1279 MODULE_ALIAS("platform:tps65910-pmic");