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/mfd/tps65910.h>
  21 #include <linux/regulator/of_regulator.h>
  22
  23 #define TPS65910_SUPPLY_STATE_ENABLED   0x1
  24 #define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 |       \
  25                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 |          \
  26                         TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 |          \
  27                         TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
  28
  29 /* supported VIO voltages in microvolts */
  30 static const unsigned int VIO_VSEL_table[] = {
  31         1500000, 1800000, 2500000, 3300000,
  32 };
  33
  34 /* VSEL tables for TPS65910 specific LDOs and dcdc's */
  35
  36 /* supported VRTC voltages in microvolts */
  37 static const unsigned int VRTC_VSEL_table[] = {
  38         1800000,
  39 };
  40
  41 /* supported VDD3 voltages in microvolts */
  42 static const unsigned int VDD3_VSEL_table[] = {
  43         5000000,
  44 };
  45
  46 /* supported VDIG1 voltages in microvolts */
  47 static const unsigned int VDIG1_VSEL_table[] = {
  48         1200000, 1500000, 1800000, 2700000,
  49 };
  50
  51 /* supported VDIG2 voltages in microvolts */
  52 static const unsigned int VDIG2_VSEL_table[] = {
  53         1000000, 1100000, 1200000, 1800000,
  54 };
  55
  56 /* supported VPLL voltages in microvolts */
  57 static const unsigned int VPLL_VSEL_table[] = {
  58         1000000, 1100000, 1800000, 2500000,
  59 };
  60
  61 /* supported VDAC voltages in microvolts */
  62 static const unsigned int VDAC_VSEL_table[] = {
  63         1800000, 2600000, 2800000, 2850000,
  64 };
  65
  66 /* supported VAUX1 voltages in microvolts */
  67 static const unsigned int VAUX1_VSEL_table[] = {
  68         1800000, 2500000, 2800000, 2850000,
  69 };
  70
  71 /* supported VAUX2 voltages in microvolts */
  72 static const unsigned int VAUX2_VSEL_table[] = {
  73         1800000, 2800000, 2900000, 3300000,
  74 };
  75
  76 /* supported VAUX33 voltages in microvolts */
  77 static const unsigned int VAUX33_VSEL_table[] = {
  78         1800000, 2000000, 2800000, 3300000,
  79 };
  80
  81 /* supported VMMC voltages in microvolts */
  82 static const unsigned int VMMC_VSEL_table[] = {
  83         1800000, 2800000, 3000000, 3300000,
  84 };
  85
  86 /* supported BBCH voltages in microvolts */
  87 static const unsigned int VBB_VSEL_table[] = {
  88         3000000, 2520000, 3150000, 5000000,
  89 };
  90
  91 struct tps_info {
  92         const char *name;
  93         const char *vin_name;
  94         u8 n_voltages;
  95         const unsigned int *voltage_table;
  96         int enable_time_us;
  97 };
  98
  99 static struct tps_info tps65910_regs[] = {
 100         {
 101                 .name = "vrtc",
 102                 .vin_name = "vcc7",
 103                 .n_voltages = ARRAY_SIZE(VRTC_VSEL_table),
 104                 .voltage_table = VRTC_VSEL_table,
 105                 .enable_time_us = 2200,
 106         },
 107         {
 108                 .name = "vio",
 109                 .vin_name = "vccio",
 110                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 111                 .voltage_table = VIO_VSEL_table,
 112                 .enable_time_us = 350,
 113         },
 114         {
 115                 .name = "vdd1",
 116                 .vin_name = "vcc1",
 117                 .enable_time_us = 350,
 118         },
 119         {
 120                 .name = "vdd2",
 121                 .vin_name = "vcc2",
 122                 .enable_time_us = 350,
 123         },
 124         {
 125                 .name = "vdd3",
 126                 .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
 127                 .voltage_table = VDD3_VSEL_table,
 128                 .enable_time_us = 200,
 129         },
 130         {
 131                 .name = "vdig1",
 132                 .vin_name = "vcc6",
 133                 .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
 134                 .voltage_table = VDIG1_VSEL_table,
 135                 .enable_time_us = 100,
 136         },
 137         {
 138                 .name = "vdig2",
 139                 .vin_name = "vcc6",
 140                 .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
 141                 .voltage_table = VDIG2_VSEL_table,
 142                 .enable_time_us = 100,
 143         },
 144         {
 145                 .name = "vpll",
 146                 .vin_name = "vcc5",
 147                 .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
 148                 .voltage_table = VPLL_VSEL_table,
 149                 .enable_time_us = 100,
 150         },
 151         {
 152                 .name = "vdac",
 153                 .vin_name = "vcc5",
 154                 .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
 155                 .voltage_table = VDAC_VSEL_table,
 156                 .enable_time_us = 100,
 157         },
 158         {
 159                 .name = "vaux1",
 160                 .vin_name = "vcc4",
 161                 .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
 162                 .voltage_table = VAUX1_VSEL_table,
 163                 .enable_time_us = 100,
 164         },
 165         {
 166                 .name = "vaux2",
 167                 .vin_name = "vcc4",
 168                 .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
 169                 .voltage_table = VAUX2_VSEL_table,
 170                 .enable_time_us = 100,
 171         },
 172         {
 173                 .name = "vaux33",
 174                 .vin_name = "vcc3",
 175                 .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
 176                 .voltage_table = VAUX33_VSEL_table,
 177                 .enable_time_us = 100,
 178         },
 179         {
 180                 .name = "vmmc",
 181                 .vin_name = "vcc3",
 182                 .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
 183                 .voltage_table = VMMC_VSEL_table,
 184                 .enable_time_us = 100,
 185         },
 186         {
 187                 .name = "vbb",
 188                 .vin_name = "vcc7",
 189                 .n_voltages = ARRAY_SIZE(VBB_VSEL_table),
 190                 .voltage_table = VBB_VSEL_table,
 191         },
 192 };
 193
 194 static struct tps_info tps65911_regs[] = {
 195         {
 196                 .name = "vrtc",
 197                 .vin_name = "vcc7",
 198                 .enable_time_us = 2200,
 199         },
 200         {
 201                 .name = "vio",
 202                 .vin_name = "vccio",
 203                 .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 204                 .voltage_table = VIO_VSEL_table,
 205                 .enable_time_us = 350,
 206         },
 207         {
 208                 .name = "vdd1",
 209                 .vin_name = "vcc1",
 210                 .n_voltages = 0x4C,
 211                 .enable_time_us = 350,
 212         },
 213         {
 214                 .name = "vdd2",
 215                 .vin_name = "vcc2",
 216                 .n_voltages = 0x4C,
 217                 .enable_time_us = 350,
 218         },
 219         {
 220                 .name = "vddctrl",
 221                 .n_voltages = 0x44,
 222                 .enable_time_us = 900,
 223         },
 224         {
 225                 .name = "ldo1",
 226                 .vin_name = "vcc6",
 227                 .n_voltages = 0x33,
 228                 .enable_time_us = 420,
 229         },
 230         {
 231                 .name = "ldo2",
 232                 .vin_name = "vcc6",
 233                 .n_voltages = 0x33,
 234                 .enable_time_us = 420,
 235         },
 236         {
 237                 .name = "ldo3",
 238                 .vin_name = "vcc5",
 239                 .n_voltages = 0x1A,
 240                 .enable_time_us = 230,
 241         },
 242         {
 243                 .name = "ldo4",
 244                 .vin_name = "vcc5",
 245                 .n_voltages = 0x33,
 246                 .enable_time_us = 230,
 247         },
 248         {
 249                 .name = "ldo5",
 250                 .vin_name = "vcc4",
 251                 .n_voltages = 0x1A,
 252                 .enable_time_us = 230,
 253         },
 254         {
 255                 .name = "ldo6",
 256                 .vin_name = "vcc3",
 257                 .n_voltages = 0x1A,
 258                 .enable_time_us = 230,
 259         },
 260         {
 261                 .name = "ldo7",
 262                 .vin_name = "vcc3",
 263                 .n_voltages = 0x1A,
 264                 .enable_time_us = 230,
 265         },
 266         {
 267                 .name = "ldo8",
 268                 .vin_name = "vcc3",
 269                 .n_voltages = 0x1A,
 270                 .enable_time_us = 230,
 271         },
 272 };
 273
 274 #define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
 275 static unsigned int tps65910_ext_sleep_control[] = {
 276         0,
 277         EXT_CONTROL_REG_BITS(VIO,    1, 0),
 278         EXT_CONTROL_REG_BITS(VDD1,   1, 1),
 279         EXT_CONTROL_REG_BITS(VDD2,   1, 2),
 280         EXT_CONTROL_REG_BITS(VDD3,   1, 3),
 281         EXT_CONTROL_REG_BITS(VDIG1,  0, 1),
 282         EXT_CONTROL_REG_BITS(VDIG2,  0, 2),
 283         EXT_CONTROL_REG_BITS(VPLL,   0, 6),
 284         EXT_CONTROL_REG_BITS(VDAC,   0, 7),
 285         EXT_CONTROL_REG_BITS(VAUX1,  0, 3),
 286         EXT_CONTROL_REG_BITS(VAUX2,  0, 4),
 287         EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
 288         EXT_CONTROL_REG_BITS(VMMC,   0, 0),
 289 };
 290
 291 static unsigned int tps65911_ext_sleep_control[] = {
 292         0,
 293         EXT_CONTROL_REG_BITS(VIO,     1, 0),
 294         EXT_CONTROL_REG_BITS(VDD1,    1, 1),
 295         EXT_CONTROL_REG_BITS(VDD2,    1, 2),
 296         EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
 297         EXT_CONTROL_REG_BITS(LDO1,    0, 1),
 298         EXT_CONTROL_REG_BITS(LDO2,    0, 2),
 299         EXT_CONTROL_REG_BITS(LDO3,    0, 7),
 300         EXT_CONTROL_REG_BITS(LDO4,    0, 6),
 301         EXT_CONTROL_REG_BITS(LDO5,    0, 3),
 302         EXT_CONTROL_REG_BITS(LDO6,    0, 0),
 303         EXT_CONTROL_REG_BITS(LDO7,    0, 5),
 304         EXT_CONTROL_REG_BITS(LDO8,    0, 4),
 305 };
 306
 307 struct tps65910_reg {
 308         struct regulator_desc *desc;
 309         struct tps65910 *mfd;
 310         struct regulator_dev **rdev;
 311         struct tps_info **info;
 312         int num_regulators;
 313         int mode;
 314         int  (*get_ctrl_reg)(int);
 315         unsigned int *ext_sleep_control;
 316         unsigned int board_ext_control[TPS65910_NUM_REGS];
 317 };
 318
 319 static int tps65910_get_ctrl_register(int id)
 320 {
 321         switch (id) {
 322         case TPS65910_REG_VRTC:
 323                 return TPS65910_VRTC;
 324         case TPS65910_REG_VIO:
 325                 return TPS65910_VIO;
 326         case TPS65910_REG_VDD1:
 327                 return TPS65910_VDD1;
 328         case TPS65910_REG_VDD2:
 329                 return TPS65910_VDD2;
 330         case TPS65910_REG_VDD3:
 331                 return TPS65910_VDD3;
 332         case TPS65910_REG_VDIG1:
 333                 return TPS65910_VDIG1;
 334         case TPS65910_REG_VDIG2:
 335                 return TPS65910_VDIG2;
 336         case TPS65910_REG_VPLL:
 337                 return TPS65910_VPLL;
 338         case TPS65910_REG_VDAC:
 339                 return TPS65910_VDAC;
 340         case TPS65910_REG_VAUX1:
 341                 return TPS65910_VAUX1;
 342         case TPS65910_REG_VAUX2:
 343                 return TPS65910_VAUX2;
 344         case TPS65910_REG_VAUX33:
 345                 return TPS65910_VAUX33;
 346         case TPS65910_REG_VMMC:
 347                 return TPS65910_VMMC;
 348         case TPS65910_REG_VBB:
 349                 return TPS65910_BBCH;
 350         default:
 351                 return -EINVAL;
 352         }
 353 }
 354
 355 static int tps65911_get_ctrl_register(int id)
 356 {
 357         switch (id) {
 358         case TPS65910_REG_VRTC:
 359                 return TPS65910_VRTC;
 360         case TPS65910_REG_VIO:
 361                 return TPS65910_VIO;
 362         case TPS65910_REG_VDD1:
 363                 return TPS65910_VDD1;
 364         case TPS65910_REG_VDD2:
 365                 return TPS65910_VDD2;
 366         case TPS65911_REG_VDDCTRL:
 367                 return TPS65911_VDDCTRL;
 368         case TPS65911_REG_LDO1:
 369                 return TPS65911_LDO1;
 370         case TPS65911_REG_LDO2:
 371                 return TPS65911_LDO2;
 372         case TPS65911_REG_LDO3:
 373                 return TPS65911_LDO3;
 374         case TPS65911_REG_LDO4:
 375                 return TPS65911_LDO4;
 376         case TPS65911_REG_LDO5:
 377                 return TPS65911_LDO5;
 378         case TPS65911_REG_LDO6:
 379                 return TPS65911_LDO6;
 380         case TPS65911_REG_LDO7:
 381                 return TPS65911_LDO7;
 382         case TPS65911_REG_LDO8:
 383                 return TPS65911_LDO8;
 384         default:
 385                 return -EINVAL;
 386         }
 387 }
 388
 389 static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
 390 {
 391         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 392         struct regmap *regmap = rdev_get_regmap(dev);
 393         int reg, id = rdev_get_id(dev);
 394
 395         reg = pmic->get_ctrl_reg(id);
 396         if (reg < 0)
 397                 return reg;
 398
 399         switch (mode) {
 400         case REGULATOR_MODE_NORMAL:
 401                 return regmap_update_bits(regmap, reg,
 402                                           LDO_ST_MODE_BIT | LDO_ST_ON_BIT,
 403                                           LDO_ST_ON_BIT);
 404         case REGULATOR_MODE_IDLE:
 405                 return regmap_set_bits(regmap, reg,
 406                                        LDO_ST_ON_BIT | LDO_ST_MODE_BIT);
 407         case REGULATOR_MODE_STANDBY:
 408                 return regmap_clear_bits(regmap, reg, LDO_ST_ON_BIT);
 409         }
 410
 411         return -EINVAL;
 412 }
 413
 414 static unsigned int tps65910_get_mode(struct regulator_dev *dev)
 415 {
 416         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 417         struct regmap *regmap = rdev_get_regmap(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 = regmap_read(regmap, 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 regmap *regmap = rdev_get_regmap(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 = regmap_read(regmap, TPS65910_VDD1_OP, &opvsel);
 445                 if (ret < 0)
 446                         return ret;
 447                 ret = regmap_read(regmap, TPS65910_VDD1, &mult);
 448                 if (ret < 0)
 449                         return ret;
 450                 mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
 451                 ret = regmap_read(regmap, 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 = regmap_read(regmap, TPS65910_VDD2_OP, &opvsel);
 461                 if (ret < 0)
 462                         return ret;
 463                 ret = regmap_read(regmap, TPS65910_VDD2, &mult);
 464                 if (ret < 0)
 465                         return ret;
 466                 mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
 467                 ret = regmap_read(regmap, 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 = regmap_read(regmap, TPS65911_VDDCTRL_OP, &opvsel);
 477                 if (ret < 0)
 478                         return ret;
 479                 ret = regmap_read(regmap, TPS65911_VDDCTRL_SR, &srvsel);
 480                 if (ret < 0)
 481                         return ret;
 482                 sr = opvsel & VDDCTRL_OP_CMD_MASK;
 483                 opvsel &= VDDCTRL_OP_SEL_MASK;
 484                 srvsel &= VDDCTRL_SR_SEL_MASK;
 485                 vselmax = 64;
 486                 break;
 487         }
 488
 489         /* multiplier 0 == 1 but 2,3 normal */
 490         if (!mult)
 491                 mult = 1;
 492
 493         if (sr) {
 494                 /* normalise to valid range */
 495                 if (srvsel < 3)
 496                         srvsel = 3;
 497                 if (srvsel > vselmax)
 498                         srvsel = vselmax;
 499                 return srvsel - 3;
 500         } else {
 501
 502                 /* normalise to valid range*/
 503                 if (opvsel < 3)
 504                         opvsel = 3;
 505                 if (opvsel > vselmax)
 506                         opvsel = vselmax;
 507                 return opvsel - 3;
 508         }
 509         return -EINVAL;
 510 }
 511
 512 static int tps65910_get_voltage_sel(struct regulator_dev *dev)
 513 {
 514         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 515         struct regmap *regmap = rdev_get_regmap(dev);
 516         int ret, reg, value, id = rdev_get_id(dev);
 517
 518         reg = pmic->get_ctrl_reg(id);
 519         if (reg < 0)
 520                 return reg;
 521
 522         ret = regmap_read(regmap, reg, &value);
 523         if (ret < 0)
 524                 return ret;
 525
 526         switch (id) {
 527         case TPS65910_REG_VIO:
 528         case TPS65910_REG_VDIG1:
 529         case TPS65910_REG_VDIG2:
 530         case TPS65910_REG_VPLL:
 531         case TPS65910_REG_VDAC:
 532         case TPS65910_REG_VAUX1:
 533         case TPS65910_REG_VAUX2:
 534         case TPS65910_REG_VAUX33:
 535         case TPS65910_REG_VMMC:
 536                 value &= LDO_SEL_MASK;
 537                 value >>= LDO_SEL_SHIFT;
 538                 break;
 539         case TPS65910_REG_VBB:
 540                 value &= BBCH_BBSEL_MASK;
 541                 value >>= BBCH_BBSEL_SHIFT;
 542                 break;
 543         default:
 544                 return -EINVAL;
 545         }
 546
 547         return value;
 548 }
 549
 550 static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
 551 {
 552         return dev->desc->volt_table[0];
 553 }
 554
 555 static int tps65911_get_voltage_sel(struct regulator_dev *dev)
 556 {
 557         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 558         struct regmap *regmap = rdev_get_regmap(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 = regmap_read(regmap, 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 regmap *regmap = rdev_get_regmap(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                 regmap_update_bits(regmap, TPS65910_VDD1, VDD1_VGAIN_SEL_MASK,
 609                                    dcdc_mult << VDD1_VGAIN_SEL_SHIFT);
 610                 regmap_write(regmap, TPS65910_VDD1_OP, vsel);
 611                 break;
 612         case TPS65910_REG_VDD2:
 613                 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 614                 if (dcdc_mult == 1)
 615                         dcdc_mult--;
 616                 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
 617
 618                 regmap_update_bits(regmap, TPS65910_VDD2, VDD1_VGAIN_SEL_MASK,
 619                                    dcdc_mult << VDD2_VGAIN_SEL_SHIFT);
 620                 regmap_write(regmap, TPS65910_VDD2_OP, vsel);
 621                 break;
 622         case TPS65911_REG_VDDCTRL:
 623                 vsel = selector + 3;
 624                 regmap_write(regmap, TPS65911_VDDCTRL_OP, vsel);
 625                 break;
 626         }
 627
 628         return 0;
 629 }
 630
 631 static int tps65910_set_voltage_sel(struct regulator_dev *dev,
 632                                     unsigned selector)
 633 {
 634         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 635         struct regmap *regmap = rdev_get_regmap(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 regmap_update_bits(regmap, reg, LDO_SEL_MASK,
 653                                           selector << LDO_SEL_SHIFT);
 654         case TPS65910_REG_VBB:
 655                 return regmap_update_bits(regmap, 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         struct regmap *regmap = rdev_get_regmap(dev);
 667         int reg, id = rdev_get_id(dev);
 668
 669         reg = pmic->get_ctrl_reg(id);
 670         if (reg < 0)
 671                 return reg;
 672
 673         switch (id) {
 674         case TPS65911_REG_LDO1:
 675         case TPS65911_REG_LDO2:
 676         case TPS65911_REG_LDO4:
 677                 return regmap_update_bits(regmap, reg, LDO1_SEL_MASK,
 678                                           selector << LDO_SEL_SHIFT);
 679         case TPS65911_REG_LDO3:
 680         case TPS65911_REG_LDO5:
 681         case TPS65911_REG_LDO6:
 682         case TPS65911_REG_LDO7:
 683         case TPS65911_REG_LDO8:
 684                 return regmap_update_bits(regmap, reg, LDO3_SEL_MASK,
 685                                           selector << LDO_SEL_SHIFT);
 686         case TPS65910_REG_VIO:
 687                 return regmap_update_bits(regmap, reg, LDO_SEL_MASK,
 688                                           selector << LDO_SEL_SHIFT);
 689         case TPS65910_REG_VBB:
 690                 return regmap_update_bits(regmap, reg, BBCH_BBSEL_MASK,
 691                                           selector << BBCH_BBSEL_SHIFT);
 692         }
 693
 694         return -EINVAL;
 695 }
 696
 697
 698 static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
 699                                         unsigned selector)
 700 {
 701         int volt, mult = 1, id = rdev_get_id(dev);
 702
 703         switch (id) {
 704         case TPS65910_REG_VDD1:
 705         case TPS65910_REG_VDD2:
 706                 mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 707                 volt = VDD1_2_MIN_VOLT +
 708                         (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
 709                 break;
 710         case TPS65911_REG_VDDCTRL:
 711                 volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
 712                 break;
 713         default:
 714                 BUG();
 715                 return -EINVAL;
 716         }
 717
 718         return  volt * 100 * mult;
 719 }
 720
 721 static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
 722 {
 723         struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 724         int step_mv = 0, id = rdev_get_id(dev);
 725
 726         switch (id) {
 727         case TPS65911_REG_LDO1:
 728         case TPS65911_REG_LDO2:
 729         case TPS65911_REG_LDO4:
 730                 /* The first 5 values of the selector correspond to 1V */
 731                 if (selector < 5)
 732                         selector = 0;
 733                 else
 734                         selector -= 4;
 735
 736                 step_mv = 50;
 737                 break;
 738         case TPS65911_REG_LDO3:
 739         case TPS65911_REG_LDO5:
 740         case TPS65911_REG_LDO6:
 741         case TPS65911_REG_LDO7:
 742         case TPS65911_REG_LDO8:
 743                 /* The first 3 values of the selector correspond to 1V */
 744                 if (selector < 3)
 745                         selector = 0;
 746                 else
 747                         selector -= 2;
 748
 749                 step_mv = 100;
 750                 break;
 751         case TPS65910_REG_VIO:
 752                 return pmic->info[id]->voltage_table[selector];
 753         default:
 754                 return -EINVAL;
 755         }
 756
 757         return (LDO_MIN_VOLT + selector * step_mv) * 1000;
 758 }
 759
 760 /* Regulator ops (except VRTC) */
 761 static const struct regulator_ops tps65910_ops_dcdc = {
 762         .is_enabled             = regulator_is_enabled_regmap,
 763         .enable                 = regulator_enable_regmap,
 764         .disable                = regulator_disable_regmap,
 765         .set_mode               = tps65910_set_mode,
 766         .get_mode               = tps65910_get_mode,
 767         .get_voltage_sel        = tps65910_get_voltage_dcdc_sel,
 768         .set_voltage_sel        = tps65910_set_voltage_dcdc_sel,
 769         .set_voltage_time_sel   = regulator_set_voltage_time_sel,
 770         .list_voltage           = tps65910_list_voltage_dcdc,
 771         .map_voltage            = regulator_map_voltage_ascend,
 772 };
 773
 774 static const struct regulator_ops tps65910_ops_vdd3 = {
 775         .is_enabled             = regulator_is_enabled_regmap,
 776         .enable                 = regulator_enable_regmap,
 777         .disable                = regulator_disable_regmap,
 778         .set_mode               = tps65910_set_mode,
 779         .get_mode               = tps65910_get_mode,
 780         .get_voltage            = tps65910_get_voltage_vdd3,
 781         .list_voltage           = regulator_list_voltage_table,
 782         .map_voltage            = regulator_map_voltage_ascend,
 783 };
 784
 785 static const struct regulator_ops tps65910_ops_vbb = {
 786         .is_enabled             = regulator_is_enabled_regmap,
 787         .enable                 = regulator_enable_regmap,
 788         .disable                = regulator_disable_regmap,
 789         .set_mode               = tps65910_set_mode,
 790         .get_mode               = tps65910_get_mode,
 791         .get_voltage_sel        = tps65910_get_voltage_sel,
 792         .set_voltage_sel        = tps65910_set_voltage_sel,
 793         .list_voltage           = regulator_list_voltage_table,
 794         .map_voltage            = regulator_map_voltage_iterate,
 795 };
 796
 797 static const struct regulator_ops tps65910_ops = {
 798         .is_enabled             = regulator_is_enabled_regmap,
 799         .enable                 = regulator_enable_regmap,
 800         .disable                = regulator_disable_regmap,
 801         .set_mode               = tps65910_set_mode,
 802         .get_mode               = tps65910_get_mode,
 803         .get_voltage_sel        = tps65910_get_voltage_sel,
 804         .set_voltage_sel        = tps65910_set_voltage_sel,
 805         .list_voltage           = regulator_list_voltage_table,
 806         .map_voltage            = regulator_map_voltage_ascend,
 807 };
 808
 809 static const struct regulator_ops tps65911_ops = {
 810         .is_enabled             = regulator_is_enabled_regmap,
 811         .enable                 = regulator_enable_regmap,
 812         .disable                = regulator_disable_regmap,
 813         .set_mode               = tps65910_set_mode,
 814         .get_mode               = tps65910_get_mode,
 815         .get_voltage_sel        = tps65911_get_voltage_sel,
 816         .set_voltage_sel        = tps65911_set_voltage_sel,
 817         .list_voltage           = tps65911_list_voltage,
 818         .map_voltage            = regulator_map_voltage_ascend,
 819 };
 820
 821 static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
 822                 int id, int ext_sleep_config)
 823 {
 824         struct tps65910 *mfd = pmic->mfd;
 825         u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
 826         u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
 827         int ret;
 828
 829         /*
 830          * Regulator can not be control from multiple external input EN1, EN2
 831          * and EN3 together.
 832          */
 833         if (ext_sleep_config & EXT_SLEEP_CONTROL) {
 834                 int en_count;
 835                 en_count = ((ext_sleep_config &
 836                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
 837                 en_count += ((ext_sleep_config &
 838                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
 839                 en_count += ((ext_sleep_config &
 840                                 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
 841                 en_count += ((ext_sleep_config &
 842                                 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
 843                 if (en_count > 1) {
 844                         dev_err(mfd->dev,
 845                                 "External sleep control flag is not proper\n");
 846                         return -EINVAL;
 847                 }
 848         }
 849
 850         pmic->board_ext_control[id] = ext_sleep_config;
 851
 852         /* External EN1 control */
 853         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
 854                 ret = regmap_set_bits(mfd->regmap,
 855                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 856         else
 857                 ret = regmap_clear_bits(mfd->regmap,
 858                                 TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
 859         if (ret < 0) {
 860                 dev_err(mfd->dev,
 861                         "Error in configuring external control EN1\n");
 862                 return ret;
 863         }
 864
 865         /* External EN2 control */
 866         if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
 867                 ret = regmap_set_bits(mfd->regmap,
 868                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 869         else
 870                 ret = regmap_clear_bits(mfd->regmap,
 871                                 TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
 872         if (ret < 0) {
 873                 dev_err(mfd->dev,
 874                         "Error in configuring external control EN2\n");
 875                 return ret;
 876         }
 877
 878         /* External EN3 control for TPS65910 LDO only */
 879         if ((tps65910_chip_id(mfd) == TPS65910) &&
 880                         (id >= TPS65910_REG_VDIG1)) {
 881                 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
 882                         ret = regmap_set_bits(mfd->regmap,
 883                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 884                 else
 885                         ret = regmap_clear_bits(mfd->regmap,
 886                                 TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
 887                 if (ret < 0) {
 888                         dev_err(mfd->dev,
 889                                 "Error in configuring external control EN3\n");
 890                         return ret;
 891                 }
 892         }
 893
 894         /* Return if no external control is selected */
 895         if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
 896                 /* Clear all sleep controls */
 897                 ret = regmap_clear_bits(mfd->regmap,
 898                         TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
 899                 if (!ret)
 900                         ret = regmap_clear_bits(mfd->regmap,
 901                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 902                 if (ret < 0)
 903                         dev_err(mfd->dev,
 904                                 "Error in configuring SLEEP register\n");
 905                 return ret;
 906         }
 907
 908         /*
 909          * For regulator that has separate operational and sleep register make
 910          * sure that operational is used and clear sleep register to turn
 911          * regulator off when external control is inactive
 912          */
 913         if ((id == TPS65910_REG_VDD1) ||
 914                 (id == TPS65910_REG_VDD2) ||
 915                         ((id == TPS65911_REG_VDDCTRL) &&
 916                                 (tps65910_chip_id(mfd) == TPS65911))) {
 917                 int op_reg_add = pmic->get_ctrl_reg(id) + 1;
 918                 int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
 919                 int opvsel, srvsel;
 920
 921                 ret = regmap_read(mfd->regmap, op_reg_add, &opvsel);
 922                 if (ret < 0)
 923                         return ret;
 924                 ret = regmap_read(mfd->regmap, sr_reg_add, &srvsel);
 925                 if (ret < 0)
 926                         return ret;
 927
 928                 if (opvsel & VDD1_OP_CMD_MASK) {
 929                         u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
 930
 931                         ret = regmap_write(mfd->regmap, op_reg_add, 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 = regmap_write(mfd->regmap, 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 = regmap_clear_bits(mfd->regmap,
 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 = regmap_set_bits(mfd->regmap,
 950                                 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
 951                 else
 952                         ret = regmap_clear_bits(mfd->regmap,
 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 = regmap_set_bits(pmic->mfd->regmap, 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                 regmap_clear_bits(pmic->mfd->regmap, 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                         return dev_err_probe(tps65910->dev, PTR_ERR(rdev),
1215                                              "failed to register %s regulator\n",
1216                                              pdev->name);
1217
1218                 /* Save regulator for cleanup */
1219                 pmic->rdev[i] = rdev;
1220         }
1221         return 0;
1222 }
1223
1224 static void tps65910_shutdown(struct platform_device *pdev)
1225 {
1226         struct tps65910_reg *pmic = platform_get_drvdata(pdev);
1227         int i;
1228
1229         /*
1230          * Before bootloader jumps to kernel, it makes sure that required
1231          * external control signals are in desired state so that given rails
1232          * can be configure accordingly.
1233          * If rails are configured to be controlled from external control
1234          * then before shutting down/rebooting the system, the external
1235          * control configuration need to be remove from the rails so that
1236          * its output will be available as per register programming even
1237          * if external controls are removed. This is require when the POR
1238          * value of the control signals are not in active state and before
1239          * bootloader initializes it, the system requires the rail output
1240          * to be active for booting.
1241          */
1242         for (i = 0; i < pmic->num_regulators; i++) {
1243                 int err;
1244                 if (!pmic->rdev[i])
1245                         continue;
1246
1247                 err = tps65910_set_ext_sleep_config(pmic, i, 0);
1248                 if (err < 0)
1249                         dev_err(&pdev->dev,
1250                                 "Error in clearing external control\n");
1251         }
1252 }
1253
1254 static struct platform_driver tps65910_driver = {
1255         .driver = {
1256                 .name = "tps65910-pmic",
1257                 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
1258         },
1259         .probe = tps65910_probe,
1260         .shutdown = tps65910_shutdown,
1261 };
1262
1263 static int __init tps65910_init(void)
1264 {
1265         return platform_driver_register(&tps65910_driver);
1266 }
1267 subsys_initcall(tps65910_init);
1268
1269 static void __exit tps65910_cleanup(void)
1270 {
1271         platform_driver_unregister(&tps65910_driver);
1272 }
1273 module_exit(tps65910_cleanup);
1274
1275 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
1276 MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
1277 MODULE_LICENSE("GPL v2");
1278 MODULE_ALIAS("platform:tps65910-pmic");