drivers/regulator/twl-regulator.c

   1 /*
   2  * twl-regulator.c -- support regulators in twl4030/twl6030 family chips
   3  *
   4  * Copyright (C) 2008 David Brownell
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/init.h>
  14 #include <linux/err.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/of.h>
  17 #include <linux/of_device.h>
  18 #include <linux/regulator/driver.h>
  19 #include <linux/regulator/machine.h>
  20 #include <linux/regulator/of_regulator.h>
  21 #include <linux/i2c/twl.h>
  22
  23
  24 /*
  25  * The TWL4030/TW5030/TPS659x0/TWL6030 family chips include power management, a
  26  * USB OTG transceiver, an RTC, ADC, PWM, and lots more.  Some versions
  27  * include an audio codec, battery charger, and more voltage regulators.
  28  * These chips are often used in OMAP-based systems.
  29  *
  30  * This driver implements software-based resource control for various
  31  * voltage regulators.  This is usually augmented with state machine
  32  * based control.
  33  */
  34
  35 struct twlreg_info {
  36         /* start of regulator's PM_RECEIVER control register bank */
  37         u8                      base;
  38
  39         /* twl resource ID, for resource control state machine */
  40         u8                      id;
  41
  42         /* voltage in mV = table[VSEL]; table_len must be a power-of-two */
  43         u8                      table_len;
  44         const u16               *table;
  45
  46         /* regulator specific turn-on delay */
  47         u16                     delay;
  48
  49         /* State REMAP default configuration */
  50         u8                      remap;
  51
  52         /* chip constraints on regulator behavior */
  53         u16                     min_mV;
  54         u16                     max_mV;
  55
  56         u8                      flags;
  57
  58         /* used by regulator core */
  59         struct regulator_desc   desc;
  60
  61         /* chip specific features */
  62         unsigned long           features;
  63
  64         /*
  65          * optional override functions for voltage set/get
  66          * these are currently only used for SMPS regulators
  67          */
  68         int                     (*get_voltage)(void *data);
  69         int                     (*set_voltage)(void *data, int target_uV);
  70
  71         /* data passed from board for external get/set voltage */
  72         void                    *data;
  73 };
  74
  75
  76 /* LDO control registers ... offset is from the base of its register bank.
  77  * The first three registers of all power resource banks help hardware to
  78  * manage the various resource groups.
  79  */
  80 /* Common offset in TWL4030/6030 */
  81 #define VREG_GRP                0
  82 /* TWL4030 register offsets */
  83 #define VREG_TYPE               1
  84 #define VREG_REMAP              2
  85 #define VREG_DEDICATED          3       /* LDO control */
  86 #define VREG_VOLTAGE_SMPS_4030  9
  87 /* TWL6030 register offsets */
  88 #define VREG_TRANS              1
  89 #define VREG_STATE              2
  90 #define VREG_VOLTAGE            3
  91 #define VREG_VOLTAGE_SMPS       4
  92 /* TWL6030 Misc register offsets */
  93 #define VREG_BC_ALL             1
  94 #define VREG_BC_REF             2
  95 #define VREG_BC_PROC            3
  96 #define VREG_BC_CLK_RST         4
  97
  98 /* TWL6030 LDO register values for CFG_STATE */
  99 #define TWL6030_CFG_STATE_OFF   0x00
 100 #define TWL6030_CFG_STATE_ON    0x01
 101 #define TWL6030_CFG_STATE_OFF2  0x02
 102 #define TWL6030_CFG_STATE_SLEEP 0x03
 103 #define TWL6030_CFG_STATE_GRP_SHIFT     5
 104 #define TWL6030_CFG_STATE_APP_SHIFT     2
 105 #define TWL6030_CFG_STATE_APP_MASK      (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
 106 #define TWL6030_CFG_STATE_APP(v)        (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
 107                                                 TWL6030_CFG_STATE_APP_SHIFT)
 108
 109 /* Flags for SMPS Voltage reading */
 110 #define SMPS_OFFSET_EN          BIT(0)
 111 #define SMPS_EXTENDED_EN        BIT(1)
 112
 113 /* twl6025 SMPS EPROM values */
 114 #define TWL6030_SMPS_OFFSET             0xB0
 115 #define TWL6030_SMPS_MULT               0xB3
 116 #define SMPS_MULTOFFSET_SMPS4   BIT(0)
 117 #define SMPS_MULTOFFSET_VIO     BIT(1)
 118 #define SMPS_MULTOFFSET_SMPS3   BIT(6)
 119
 120 static inline int
 121 twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
 122 {
 123         u8 value;
 124         int status;
 125
 126         status = twl_i2c_read_u8(slave_subgp,
 127                         &value, info->base + offset);
 128         return (status < 0) ? status : value;
 129 }
 130
 131 static inline int
 132 twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
 133                                                  u8 value)
 134 {
 135         return twl_i2c_write_u8(slave_subgp,
 136                         value, info->base + offset);
 137 }
 138
 139 /*----------------------------------------------------------------------*/
 140
 141 /* generic power resource operations, which work on all regulators */
 142
 143 static int twlreg_grp(struct regulator_dev *rdev)
 144 {
 145         return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
 146                                                                  VREG_GRP);
 147 }
 148
 149 /*
 150  * Enable/disable regulators by joining/leaving the P1 (processor) group.
 151  * We assume nobody else is updating the DEV_GRP registers.
 152  */
 153 /* definition for 4030 family */
 154 #define P3_GRP_4030     BIT(7)          /* "peripherals" */
 155 #define P2_GRP_4030     BIT(6)          /* secondary processor, modem, etc */
 156 #define P1_GRP_4030     BIT(5)          /* CPU/Linux */
 157 /* definition for 6030 family */
 158 #define P3_GRP_6030     BIT(2)          /* secondary processor, modem, etc */
 159 #define P2_GRP_6030     BIT(1)          /* "peripherals" */
 160 #define P1_GRP_6030     BIT(0)          /* CPU/Linux */
 161
 162 static int twl4030reg_is_enabled(struct regulator_dev *rdev)
 163 {
 164         int     state = twlreg_grp(rdev);
 165
 166         if (state < 0)
 167                 return state;
 168
 169         return state & P1_GRP_4030;
 170 }
 171
 172 static int twl6030reg_is_enabled(struct regulator_dev *rdev)
 173 {
 174         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 175         int                     grp = 0, val;
 176
 177         if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS))) {
 178                 grp = twlreg_grp(rdev);
 179                 if (grp < 0)
 180                         return grp;
 181                 grp &= P1_GRP_6030;
 182         } else {
 183                 grp = 1;
 184         }
 185
 186         val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
 187         val = TWL6030_CFG_STATE_APP(val);
 188
 189         return grp && (val == TWL6030_CFG_STATE_ON);
 190 }
 191
 192 static int twl4030reg_enable(struct regulator_dev *rdev)
 193 {
 194         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 195         int                     grp;
 196         int                     ret;
 197
 198         grp = twlreg_grp(rdev);
 199         if (grp < 0)
 200                 return grp;
 201
 202         grp |= P1_GRP_4030;
 203
 204         ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
 205
 206         return ret;
 207 }
 208
 209 static int twl6030reg_enable(struct regulator_dev *rdev)
 210 {
 211         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 212         int                     grp = 0;
 213         int                     ret;
 214
 215         if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
 216                 grp = twlreg_grp(rdev);
 217         if (grp < 0)
 218                 return grp;
 219
 220         ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
 221                         grp << TWL6030_CFG_STATE_GRP_SHIFT |
 222                         TWL6030_CFG_STATE_ON);
 223         return ret;
 224 }
 225
 226 static int twl4030reg_enable_time(struct regulator_dev *rdev)
 227 {
 228         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 229
 230         return info->delay;
 231 }
 232
 233 static int twl6030reg_enable_time(struct regulator_dev *rdev)
 234 {
 235         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 236
 237         return info->delay;
 238 }
 239
 240 static int twl4030reg_disable(struct regulator_dev *rdev)
 241 {
 242         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 243         int                     grp;
 244         int                     ret;
 245
 246         grp = twlreg_grp(rdev);
 247         if (grp < 0)
 248                 return grp;
 249
 250         grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
 251
 252         ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
 253
 254         return ret;
 255 }
 256
 257 static int twl6030reg_disable(struct regulator_dev *rdev)
 258 {
 259         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 260         int                     grp = 0;
 261         int                     ret;
 262
 263         if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
 264                 grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
 265
 266         /* For 6030, set the off state for all grps enabled */
 267         ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
 268                         (grp) << TWL6030_CFG_STATE_GRP_SHIFT |
 269                         TWL6030_CFG_STATE_OFF);
 270
 271         return ret;
 272 }
 273
 274 static int twl4030reg_get_status(struct regulator_dev *rdev)
 275 {
 276         int     state = twlreg_grp(rdev);
 277
 278         if (state < 0)
 279                 return state;
 280         state &= 0x0f;
 281
 282         /* assume state != WARM_RESET; we'd not be running...  */
 283         if (!state)
 284                 return REGULATOR_STATUS_OFF;
 285         return (state & BIT(3))
 286                 ? REGULATOR_STATUS_NORMAL
 287                 : REGULATOR_STATUS_STANDBY;
 288 }
 289
 290 static int twl6030reg_get_status(struct regulator_dev *rdev)
 291 {
 292         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 293         int                     val;
 294
 295         val = twlreg_grp(rdev);
 296         if (val < 0)
 297                 return val;
 298
 299         val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
 300
 301         switch (TWL6030_CFG_STATE_APP(val)) {
 302         case TWL6030_CFG_STATE_ON:
 303                 return REGULATOR_STATUS_NORMAL;
 304
 305         case TWL6030_CFG_STATE_SLEEP:
 306                 return REGULATOR_STATUS_STANDBY;
 307
 308         case TWL6030_CFG_STATE_OFF:
 309         case TWL6030_CFG_STATE_OFF2:
 310         default:
 311                 break;
 312         }
 313
 314         return REGULATOR_STATUS_OFF;
 315 }
 316
 317 static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
 318 {
 319         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 320         unsigned                message;
 321         int                     status;
 322
 323         /* We can only set the mode through state machine commands... */
 324         switch (mode) {
 325         case REGULATOR_MODE_NORMAL:
 326                 message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);
 327                 break;
 328         case REGULATOR_MODE_STANDBY:
 329                 message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);
 330                 break;
 331         default:
 332                 return -EINVAL;
 333         }
 334
 335         /* Ensure the resource is associated with some group */
 336         status = twlreg_grp(rdev);
 337         if (status < 0)
 338                 return status;
 339         if (!(status & (P3_GRP_4030 | P2_GRP_4030 | P1_GRP_4030)))
 340                 return -EACCES;
 341
 342         status = twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
 343                         message >> 8, TWL4030_PM_MASTER_PB_WORD_MSB);
 344         if (status < 0)
 345                 return status;
 346
 347         return twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
 348                         message & 0xff, TWL4030_PM_MASTER_PB_WORD_LSB);
 349 }
 350
 351 static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
 352 {
 353         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 354         int grp = 0;
 355         int val;
 356
 357         if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
 358                 grp = twlreg_grp(rdev);
 359
 360         if (grp < 0)
 361                 return grp;
 362
 363         /* Compose the state register settings */
 364         val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
 365         /* We can only set the mode through state machine commands... */
 366         switch (mode) {
 367         case REGULATOR_MODE_NORMAL:
 368                 val |= TWL6030_CFG_STATE_ON;
 369                 break;
 370         case REGULATOR_MODE_STANDBY:
 371                 val |= TWL6030_CFG_STATE_SLEEP;
 372                 break;
 373
 374         default:
 375                 return -EINVAL;
 376         }
 377
 378         return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
 379 }
 380
 381 /*----------------------------------------------------------------------*/
 382
 383 /*
 384  * Support for adjustable-voltage LDOs uses a four bit (or less) voltage
 385  * select field in its control register.   We use tables indexed by VSEL
 386  * to record voltages in milliVolts.  (Accuracy is about three percent.)
 387  *
 388  * Note that VSEL values for VAUX2 changed in twl5030 and newer silicon;
 389  * currently handled by listing two slightly different VAUX2 regulators,
 390  * only one of which will be configured.
 391  *
 392  * VSEL values documented as "TI cannot support these values" are flagged
 393  * in these tables as UNSUP() values; we normally won't assign them.
 394  *
 395  * VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported.
 396  * TI are revising the twl5030/tps659x0 specs to support that 3.0V setting.
 397  */
 398 #define UNSUP_MASK      0x8000
 399
 400 #define UNSUP(x)        (UNSUP_MASK | (x))
 401 #define IS_UNSUP(info, x)                       \
 402         ((UNSUP_MASK & (x)) &&                  \
 403          !((info)->features & TWL4030_ALLOW_UNSUPPORTED))
 404 #define LDO_MV(x)       (~UNSUP_MASK & (x))
 405
 406
 407 static const u16 VAUX1_VSEL_table[] = {
 408         UNSUP(1500), UNSUP(1800), 2500, 2800,
 409         3000, 3000, 3000, 3000,
 410 };
 411 static const u16 VAUX2_4030_VSEL_table[] = {
 412         UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300,
 413         1500, 1800, UNSUP(1850), 2500,
 414         UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
 415         UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
 416 };
 417 static const u16 VAUX2_VSEL_table[] = {
 418         1700, 1700, 1900, 1300,
 419         1500, 1800, 2000, 2500,
 420         2100, 2800, 2200, 2300,
 421         2400, 2400, 2400, 2400,
 422 };
 423 static const u16 VAUX3_VSEL_table[] = {
 424         1500, 1800, 2500, 2800,
 425         3000, 3000, 3000, 3000,
 426 };
 427 static const u16 VAUX4_VSEL_table[] = {
 428         700, 1000, 1200, UNSUP(1300),
 429         1500, 1800, UNSUP(1850), 2500,
 430         UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
 431         UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
 432 };
 433 static const u16 VMMC1_VSEL_table[] = {
 434         1850, 2850, 3000, 3150,
 435 };
 436 static const u16 VMMC2_VSEL_table[] = {
 437         UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300),
 438         UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500),
 439         2600, 2800, 2850, 3000,
 440         3150, 3150, 3150, 3150,
 441 };
 442 static const u16 VPLL1_VSEL_table[] = {
 443         1000, 1200, 1300, 1800,
 444         UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
 445 };
 446 static const u16 VPLL2_VSEL_table[] = {
 447         700, 1000, 1200, 1300,
 448         UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500),
 449         UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000),
 450         UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
 451 };
 452 static const u16 VSIM_VSEL_table[] = {
 453         UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
 454         2800, 3000, 3000, 3000,
 455 };
 456 static const u16 VDAC_VSEL_table[] = {
 457         1200, 1300, 1800, 1800,
 458 };
 459 static const u16 VDD1_VSEL_table[] = {
 460         800, 1450,
 461 };
 462 static const u16 VDD2_VSEL_table[] = {
 463         800, 1450, 1500,
 464 };
 465 static const u16 VIO_VSEL_table[] = {
 466         1800, 1850,
 467 };
 468 static const u16 VINTANA2_VSEL_table[] = {
 469         2500, 2750,
 470 };
 471
 472 static int twl4030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
 473 {
 474         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 475         int                     mV = info->table[index];
 476
 477         return IS_UNSUP(info, mV) ? 0 : (LDO_MV(mV) * 1000);
 478 }
 479
 480 static int
 481 twl4030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
 482 {
 483         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 484
 485         return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
 486                             selector);
 487 }
 488
 489 static int twl4030ldo_get_voltage(struct regulator_dev *rdev)
 490 {
 491         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 492         int             vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
 493                                                                 VREG_VOLTAGE);
 494
 495         if (vsel < 0)
 496                 return vsel;
 497
 498         vsel &= info->table_len - 1;
 499         return LDO_MV(info->table[vsel]) * 1000;
 500 }
 501
 502 static struct regulator_ops twl4030ldo_ops = {
 503         .list_voltage   = twl4030ldo_list_voltage,
 504
 505         .set_voltage_sel = twl4030ldo_set_voltage_sel,
 506         .get_voltage    = twl4030ldo_get_voltage,
 507
 508         .enable         = twl4030reg_enable,
 509         .disable        = twl4030reg_disable,
 510         .is_enabled     = twl4030reg_is_enabled,
 511         .enable_time    = twl4030reg_enable_time,
 512
 513         .set_mode       = twl4030reg_set_mode,
 514
 515         .get_status     = twl4030reg_get_status,
 516 };
 517
 518 static int
 519 twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
 520                         unsigned *selector)
 521 {
 522         struct twlreg_info *info = rdev_get_drvdata(rdev);
 523         int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
 524
 525         if (info->set_voltage) {
 526                 return info->set_voltage(info->data, min_uV);
 527         } else {
 528                 twlreg_write(info, TWL_MODULE_PM_RECEIVER,
 529                         VREG_VOLTAGE_SMPS_4030, vsel);
 530         }
 531
 532         return 0;
 533 }
 534
 535 static int twl4030smps_get_voltage(struct regulator_dev *rdev)
 536 {
 537         struct twlreg_info *info = rdev_get_drvdata(rdev);
 538         int vsel;
 539
 540         if (info->get_voltage)
 541                 return info->get_voltage(info->data);
 542
 543         vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
 544                 VREG_VOLTAGE_SMPS_4030);
 545
 546         return vsel * 12500 + 600000;
 547 }
 548
 549 static struct regulator_ops twl4030smps_ops = {
 550         .set_voltage    = twl4030smps_set_voltage,
 551         .get_voltage    = twl4030smps_get_voltage,
 552 };
 553
 554 static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
 555         int max_uV, unsigned *selector)
 556 {
 557         struct twlreg_info *info = rdev_get_drvdata(rdev);
 558
 559         if (info->set_voltage)
 560                 return info->set_voltage(info->data, min_uV);
 561
 562         return -ENODEV;
 563 }
 564
 565 static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
 566 {
 567         struct twlreg_info *info = rdev_get_drvdata(rdev);
 568
 569         if (info->get_voltage)
 570                 return info->get_voltage(info->data);
 571
 572         return -ENODEV;
 573 }
 574
 575 static struct regulator_ops twl6030coresmps_ops = {
 576         .set_voltage    = twl6030coresmps_set_voltage,
 577         .get_voltage    = twl6030coresmps_get_voltage,
 578 };
 579
 580 static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
 581 {
 582         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 583
 584         return ((info->min_mV + (index * 100)) * 1000);
 585 }
 586
 587 static int
 588 twl6030ldo_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
 589                        unsigned *selector)
 590 {
 591         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 592         int                     vsel;
 593
 594         if ((min_uV/1000 < info->min_mV) || (max_uV/1000 > info->max_mV))
 595                 return -EDOM;
 596
 597         /*
 598          * Use the below formula to calculate vsel
 599          * mV = 1000mv + 100mv * (vsel - 1)
 600          */
 601         vsel = (min_uV/1000 - 1000)/100 + 1;
 602         *selector = vsel;
 603         return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, vsel);
 604
 605 }
 606
 607 static int twl6030ldo_get_voltage(struct regulator_dev *rdev)
 608 {
 609         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 610         int             vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
 611                                                                 VREG_VOLTAGE);
 612
 613         if (vsel < 0)
 614                 return vsel;
 615
 616         /*
 617          * Use the below formula to calculate vsel
 618          * mV = 1000mv + 100mv * (vsel - 1)
 619          */
 620         return (1000 + (100 * (vsel - 1))) * 1000;
 621 }
 622
 623 static struct regulator_ops twl6030ldo_ops = {
 624         .list_voltage   = twl6030ldo_list_voltage,
 625
 626         .set_voltage    = twl6030ldo_set_voltage,
 627         .get_voltage    = twl6030ldo_get_voltage,
 628
 629         .enable         = twl6030reg_enable,
 630         .disable        = twl6030reg_disable,
 631         .is_enabled     = twl6030reg_is_enabled,
 632         .enable_time    = twl6030reg_enable_time,
 633
 634         .set_mode       = twl6030reg_set_mode,
 635
 636         .get_status     = twl6030reg_get_status,
 637 };
 638
 639 /*----------------------------------------------------------------------*/
 640
 641 /*
 642  * Fixed voltage LDOs don't have a VSEL field to update.
 643  */
 644 static int twlfixed_list_voltage(struct regulator_dev *rdev, unsigned index)
 645 {
 646         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 647
 648         return info->min_mV * 1000;
 649 }
 650
 651 static int twlfixed_get_voltage(struct regulator_dev *rdev)
 652 {
 653         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 654
 655         return info->min_mV * 1000;
 656 }
 657
 658 static struct regulator_ops twl4030fixed_ops = {
 659         .list_voltage   = twlfixed_list_voltage,
 660
 661         .get_voltage    = twlfixed_get_voltage,
 662
 663         .enable         = twl4030reg_enable,
 664         .disable        = twl4030reg_disable,
 665         .is_enabled     = twl4030reg_is_enabled,
 666         .enable_time    = twl4030reg_enable_time,
 667
 668         .set_mode       = twl4030reg_set_mode,
 669
 670         .get_status     = twl4030reg_get_status,
 671 };
 672
 673 static struct regulator_ops twl6030fixed_ops = {
 674         .list_voltage   = twlfixed_list_voltage,
 675
 676         .get_voltage    = twlfixed_get_voltage,
 677
 678         .enable         = twl6030reg_enable,
 679         .disable        = twl6030reg_disable,
 680         .is_enabled     = twl6030reg_is_enabled,
 681         .enable_time    = twl6030reg_enable_time,
 682
 683         .set_mode       = twl6030reg_set_mode,
 684
 685         .get_status     = twl6030reg_get_status,
 686 };
 687
 688 static struct regulator_ops twl6030_fixed_resource = {
 689         .enable         = twl6030reg_enable,
 690         .disable        = twl6030reg_disable,
 691         .is_enabled     = twl6030reg_is_enabled,
 692         .enable_time    = twl6030reg_enable_time,
 693         .get_status     = twl6030reg_get_status,
 694 };
 695
 696 /*
 697  * SMPS status and control
 698  */
 699
 700 static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
 701 {
 702         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 703
 704         int voltage = 0;
 705
 706         switch (info->flags) {
 707         case SMPS_OFFSET_EN:
 708                 voltage = 100000;
 709                 /* fall through */
 710         case 0:
 711                 switch (index) {
 712                 case 0:
 713                         voltage = 0;
 714                         break;
 715                 case 58:
 716                         voltage = 1350 * 1000;
 717                         break;
 718                 case 59:
 719                         voltage = 1500 * 1000;
 720                         break;
 721                 case 60:
 722                         voltage = 1800 * 1000;
 723                         break;
 724                 case 61:
 725                         voltage = 1900 * 1000;
 726                         break;
 727                 case 62:
 728                         voltage = 2100 * 1000;
 729                         break;
 730                 default:
 731                         voltage += (600000 + (12500 * (index - 1)));
 732                 }
 733                 break;
 734         case SMPS_EXTENDED_EN:
 735                 switch (index) {
 736                 case 0:
 737                         voltage = 0;
 738                         break;
 739                 case 58:
 740                         voltage = 2084 * 1000;
 741                         break;
 742                 case 59:
 743                         voltage = 2315 * 1000;
 744                         break;
 745                 case 60:
 746                         voltage = 2778 * 1000;
 747                         break;
 748                 case 61:
 749                         voltage = 2932 * 1000;
 750                         break;
 751                 case 62:
 752                         voltage = 3241 * 1000;
 753                         break;
 754                 default:
 755                         voltage = (1852000 + (38600 * (index - 1)));
 756                 }
 757                 break;
 758         case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
 759                 switch (index) {
 760                 case 0:
 761                         voltage = 0;
 762                         break;
 763                 case 58:
 764                         voltage = 4167 * 1000;
 765                         break;
 766                 case 59:
 767                         voltage = 2315 * 1000;
 768                         break;
 769                 case 60:
 770                         voltage = 2778 * 1000;
 771                         break;
 772                 case 61:
 773                         voltage = 2932 * 1000;
 774                         break;
 775                 case 62:
 776                         voltage = 3241 * 1000;
 777                         break;
 778                 default:
 779                         voltage = (2161000 + (38600 * (index - 1)));
 780                 }
 781                 break;
 782         }
 783
 784         return voltage;
 785 }
 786
 787 static int
 788 twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
 789                         unsigned int *selector)
 790 {
 791         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 792         int     vsel = 0;
 793
 794         switch (info->flags) {
 795         case 0:
 796                 if (min_uV == 0)
 797                         vsel = 0;
 798                 else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
 799                         int calc_uV;
 800                         vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
 801                         vsel++;
 802                         calc_uV = twl6030smps_list_voltage(rdev, vsel);
 803                         if (calc_uV > max_uV)
 804                                 return -EINVAL;
 805                 }
 806                 /* Values 1..57 for vsel are linear and can be calculated
 807                  * values 58..62 are non linear.
 808                  */
 809                 else if ((min_uV > 1900000) && (max_uV >= 2100000))
 810                         vsel = 62;
 811                 else if ((min_uV > 1800000) && (max_uV >= 1900000))
 812                         vsel = 61;
 813                 else if ((min_uV > 1500000) && (max_uV >= 1800000))
 814                         vsel = 60;
 815                 else if ((min_uV > 1350000) && (max_uV >= 1500000))
 816                         vsel = 59;
 817                 else if ((min_uV > 1300000) && (max_uV >= 1350000))
 818                         vsel = 58;
 819                 else
 820                         return -EINVAL;
 821                 break;
 822         case SMPS_OFFSET_EN:
 823                 if (min_uV == 0)
 824                         vsel = 0;
 825                 else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
 826                         int calc_uV;
 827                         vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
 828                         vsel++;
 829                         calc_uV = twl6030smps_list_voltage(rdev, vsel);
 830                         if (calc_uV > max_uV)
 831                                 return -EINVAL;
 832                 }
 833                 /* Values 1..57 for vsel are linear and can be calculated
 834                  * values 58..62 are non linear.
 835                  */
 836                 else if ((min_uV > 1900000) && (max_uV >= 2100000))
 837                         vsel = 62;
 838                 else if ((min_uV > 1800000) && (max_uV >= 1900000))
 839                         vsel = 61;
 840                 else if ((min_uV > 1350000) && (max_uV >= 1800000))
 841                         vsel = 60;
 842                 else if ((min_uV > 1350000) && (max_uV >= 1500000))
 843                         vsel = 59;
 844                 else if ((min_uV > 1300000) && (max_uV >= 1350000))
 845                         vsel = 58;
 846                 else
 847                         return -EINVAL;
 848                 break;
 849         case SMPS_EXTENDED_EN:
 850                 if (min_uV == 0) {
 851                         vsel = 0;
 852                 } else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
 853                         vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
 854                         vsel++;
 855                 }
 856                 break;
 857         case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
 858                 if (min_uV == 0) {
 859                         vsel = 0;
 860                 } else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
 861                         vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
 862                         vsel++;
 863                 }
 864                 break;
 865         }
 866
 867         *selector = vsel;
 868
 869         return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
 870                                                         vsel);
 871 }
 872
 873 static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
 874 {
 875         struct twlreg_info      *info = rdev_get_drvdata(rdev);
 876
 877         return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
 878 }
 879
 880 static struct regulator_ops twlsmps_ops = {
 881         .list_voltage           = twl6030smps_list_voltage,
 882
 883         .set_voltage            = twl6030smps_set_voltage,
 884         .get_voltage_sel        = twl6030smps_get_voltage_sel,
 885
 886         .enable                 = twl6030reg_enable,
 887         .disable                = twl6030reg_disable,
 888         .is_enabled             = twl6030reg_is_enabled,
 889         .enable_time            = twl6030reg_enable_time,
 890
 891         .set_mode               = twl6030reg_set_mode,
 892
 893         .get_status             = twl6030reg_get_status,
 894 };
 895
 896 /*----------------------------------------------------------------------*/
 897
 898 #define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
 899                         remap_conf) \
 900                 TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
 901                         remap_conf, TWL4030, twl4030fixed_ops)
 902 #define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
 903                 TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
 904                         0x0, TWL6030, twl6030fixed_ops)
 905
 906 #define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
 907 static struct twlreg_info TWL4030_INFO_##label = { \
 908         .base = offset, \
 909         .id = num, \
 910         .table_len = ARRAY_SIZE(label##_VSEL_table), \
 911         .table = label##_VSEL_table, \
 912         .delay = turnon_delay, \
 913         .remap = remap_conf, \
 914         .desc = { \
 915                 .name = #label, \
 916                 .id = TWL4030_REG_##label, \
 917                 .n_voltages = ARRAY_SIZE(label##_VSEL_table), \
 918                 .ops = &twl4030ldo_ops, \
 919                 .type = REGULATOR_VOLTAGE, \
 920                 .owner = THIS_MODULE, \
 921                 }, \
 922         }
 923
 924 #define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
 925 static struct twlreg_info TWL4030_INFO_##label = { \
 926         .base = offset, \
 927         .id = num, \
 928         .delay = turnon_delay, \
 929         .remap = remap_conf, \
 930         .desc = { \
 931                 .name = #label, \
 932                 .id = TWL4030_REG_##label, \
 933                 .ops = &twl4030smps_ops, \
 934                 .type = REGULATOR_VOLTAGE, \
 935                 .owner = THIS_MODULE, \
 936                 }, \
 937         }
 938
 939 #define TWL6030_ADJUSTABLE_SMPS(label) \
 940 static struct twlreg_info TWL6030_INFO_##label = { \
 941         .desc = { \
 942                 .name = #label, \
 943                 .id = TWL6030_REG_##label, \
 944                 .ops = &twl6030coresmps_ops, \
 945                 .type = REGULATOR_VOLTAGE, \
 946                 .owner = THIS_MODULE, \
 947                 }, \
 948         }
 949
 950 #define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
 951 static struct twlreg_info TWL6030_INFO_##label = { \
 952         .base = offset, \
 953         .min_mV = min_mVolts, \
 954         .max_mV = max_mVolts, \
 955         .desc = { \
 956                 .name = #label, \
 957                 .id = TWL6030_REG_##label, \
 958                 .n_voltages = (max_mVolts - min_mVolts)/100 + 1, \
 959                 .ops = &twl6030ldo_ops, \
 960                 .type = REGULATOR_VOLTAGE, \
 961                 .owner = THIS_MODULE, \
 962                 }, \
 963         }
 964
 965 #define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
 966 static struct twlreg_info TWL6025_INFO_##label = { \
 967         .base = offset, \
 968         .min_mV = min_mVolts, \
 969         .max_mV = max_mVolts, \
 970         .desc = { \
 971                 .name = #label, \
 972                 .id = TWL6025_REG_##label, \
 973                 .n_voltages = ((max_mVolts - min_mVolts)/100) + 1, \
 974                 .ops = &twl6030ldo_ops, \
 975                 .type = REGULATOR_VOLTAGE, \
 976                 .owner = THIS_MODULE, \
 977                 }, \
 978         }
 979
 980 #define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
 981                 family, operations) \
 982 static struct twlreg_info TWLFIXED_INFO_##label = { \
 983         .base = offset, \
 984         .id = num, \
 985         .min_mV = mVolts, \
 986         .delay = turnon_delay, \
 987         .remap = remap_conf, \
 988         .desc = { \
 989                 .name = #label, \
 990                 .id = family##_REG_##label, \
 991                 .n_voltages = 1, \
 992                 .ops = &operations, \
 993                 .type = REGULATOR_VOLTAGE, \
 994                 .owner = THIS_MODULE, \
 995                 }, \
 996         }
 997
 998 #define TWL6030_FIXED_RESOURCE(label, offset, turnon_delay) \
 999 static struct twlreg_info TWLRES_INFO_##label = { \
1000         .base = offset, \
1001         .delay = turnon_delay, \
1002         .desc = { \
1003                 .name = #label, \
1004                 .id = TWL6030_REG_##label, \
1005                 .ops = &twl6030_fixed_resource, \
1006                 .type = REGULATOR_VOLTAGE, \
1007                 .owner = THIS_MODULE, \
1008                 }, \
1009         }
1010
1011 #define TWL6025_ADJUSTABLE_SMPS(label, offset) \
1012 static struct twlreg_info TWLSMPS_INFO_##label = { \
1013         .base = offset, \
1014         .min_mV = 600, \
1015         .max_mV = 2100, \
1016         .desc = { \
1017                 .name = #label, \
1018                 .id = TWL6025_REG_##label, \
1019                 .n_voltages = 63, \
1020                 .ops = &twlsmps_ops, \
1021                 .type = REGULATOR_VOLTAGE, \
1022                 .owner = THIS_MODULE, \
1023                 }, \
1024         }
1025
1026 /*
1027  * We list regulators here if systems need some level of
1028  * software control over them after boot.
1029  */
1030 TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08);
1031 TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08);
1032 TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08);
1033 TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08);
1034 TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08);
1035 TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08);
1036 TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08);
1037 TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00);
1038 TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08);
1039 TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00);
1040 TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08);
1041 TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08);
1042 TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
1043 TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08);
1044 TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08);
1045 /* VUSBCP is managed *only* by the USB subchip */
1046 /* 6030 REG with base as PMC Slave Misc : 0x0030 */
1047 /* Turnon-delay and remap configuration values for 6030 are not
1048    verified since the specification is not public */
1049 TWL6030_ADJUSTABLE_SMPS(VDD1);
1050 TWL6030_ADJUSTABLE_SMPS(VDD2);
1051 TWL6030_ADJUSTABLE_SMPS(VDD3);
1052 TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300);
1053 TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300);
1054 TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300);
1055 TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300);
1056 TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300);
1057 TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300);
1058 /* 6025 are renamed compared to 6030 versions */
1059 TWL6025_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300);
1060 TWL6025_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300);
1061 TWL6025_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300);
1062 TWL6025_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300);
1063 TWL6025_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300);
1064 TWL6025_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
1065 TWL6025_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
1066 TWL6025_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
1067 TWL6025_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
1068 TWL4030_FIXED_LDO(VINTANA2, 0x3f, 1500, 11, 100, 0x08);
1069 TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
1070 TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
1071 TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
1072 TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
1073 TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
1074 TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
1075 TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
1076 TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
1077 TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
1078 TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
1079 TWL6030_FIXED_RESOURCE(CLK32KG, 0x8C, 0);
1080 TWL6025_ADJUSTABLE_SMPS(SMPS3, 0x34);
1081 TWL6025_ADJUSTABLE_SMPS(SMPS4, 0x10);
1082 TWL6025_ADJUSTABLE_SMPS(VIO, 0x16);
1083
1084 static u8 twl_get_smps_offset(void)
1085 {
1086         u8 value;
1087
1088         twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1089                         TWL6030_SMPS_OFFSET);
1090         return value;
1091 }
1092
1093 static u8 twl_get_smps_mult(void)
1094 {
1095         u8 value;
1096
1097         twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
1098                         TWL6030_SMPS_MULT);
1099         return value;
1100 }
1101
1102 #define TWL_OF_MATCH(comp, family, label) \
1103         { \
1104                 .compatible = comp, \
1105                 .data = &family##_INFO_##label, \
1106         }
1107
1108 #define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
1109 #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
1110 #define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label)
1111 #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
1112 #define TWLRES_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLRES, label)
1113 #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
1114
1115 static const struct of_device_id twl_of_match[] __devinitconst = {
1116         TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
1117         TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
1118         TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
1119         TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
1120         TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
1121         TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
1122         TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
1123         TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
1124         TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
1125         TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
1126         TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
1127         TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
1128         TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
1129         TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
1130         TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
1131         TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
1132         TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
1133         TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
1134         TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
1135         TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
1136         TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
1137         TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
1138         TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
1139         TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
1140         TWL6025_OF_MATCH("ti,twl6025-ldo2", LDO2),
1141         TWL6025_OF_MATCH("ti,twl6025-ldo4", LDO4),
1142         TWL6025_OF_MATCH("ti,twl6025-ldo3", LDO3),
1143         TWL6025_OF_MATCH("ti,twl6025-ldo5", LDO5),
1144         TWL6025_OF_MATCH("ti,twl6025-ldo1", LDO1),
1145         TWL6025_OF_MATCH("ti,twl6025-ldo7", LDO7),
1146         TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6),
1147         TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN),
1148         TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB),
1149         TWLFIXED_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
1150         TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
1151         TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
1152         TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
1153         TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
1154         TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
1155         TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
1156         TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
1157         TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
1158         TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
1159         TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
1160         TWLRES_OF_MATCH("ti,twl6030-clk32kg", CLK32KG),
1161         TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3),
1162         TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4),
1163         TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO),
1164         {},
1165 };
1166 MODULE_DEVICE_TABLE(of, twl_of_match);
1167
1168 static int __devinit twlreg_probe(struct platform_device *pdev)
1169 {
1170         int                             i, id;
1171         struct twlreg_info              *info;
1172         struct regulator_init_data      *initdata;
1173         struct regulation_constraints   *c;
1174         struct regulator_dev            *rdev;
1175         struct twl_regulator_driver_data        *drvdata;
1176         const struct of_device_id       *match;
1177         struct regulator_config         config = { };
1178
1179         match = of_match_device(twl_of_match, &pdev->dev);
1180         if (match) {
1181                 info = match->data;
1182                 id = info->desc.id;
1183                 initdata = of_get_regulator_init_data(&pdev->dev,
1184                                                       pdev->dev.of_node);
1185                 drvdata = NULL;
1186         } else {
1187                 id = pdev->id;
1188                 initdata = pdev->dev.platform_data;
1189                 for (i = 0, info = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
1190                         info = twl_of_match[i].data;
1191                         if (info && info->desc.id == id)
1192                                 break;
1193                 }
1194                 if (i == ARRAY_SIZE(twl_of_match))
1195                         return -ENODEV;
1196
1197                 drvdata = initdata->driver_data;
1198                 if (!drvdata)
1199                         return -EINVAL;
1200         }
1201
1202         if (!info)
1203                 return -ENODEV;
1204
1205         if (!initdata)
1206                 return -EINVAL;
1207
1208         if (drvdata) {
1209                 /* copy the driver data into regulator data */
1210                 info->features = drvdata->features;
1211                 info->data = drvdata->data;
1212                 info->set_voltage = drvdata->set_voltage;
1213                 info->get_voltage = drvdata->get_voltage;
1214         }
1215
1216         /* Constrain board-specific capabilities according to what
1217          * this driver and the chip itself can actually do.
1218          */
1219         c = &initdata->constraints;
1220         c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
1221         c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
1222                                 | REGULATOR_CHANGE_MODE
1223                                 | REGULATOR_CHANGE_STATUS;
1224         switch (id) {
1225         case TWL4030_REG_VIO:
1226         case TWL4030_REG_VDD1:
1227         case TWL4030_REG_VDD2:
1228         case TWL4030_REG_VPLL1:
1229         case TWL4030_REG_VINTANA1:
1230         case TWL4030_REG_VINTANA2:
1231         case TWL4030_REG_VINTDIG:
1232                 c->always_on = true;
1233                 break;
1234         default:
1235                 break;
1236         }
1237
1238         switch (id) {
1239         case TWL6025_REG_SMPS3:
1240                 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
1241                         info->flags |= SMPS_EXTENDED_EN;
1242                 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
1243                         info->flags |= SMPS_OFFSET_EN;
1244                 break;
1245         case TWL6025_REG_SMPS4:
1246                 if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
1247                         info->flags |= SMPS_EXTENDED_EN;
1248                 if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
1249                         info->flags |= SMPS_OFFSET_EN;
1250                 break;
1251         case TWL6025_REG_VIO:
1252                 if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
1253                         info->flags |= SMPS_EXTENDED_EN;
1254                 if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
1255                         info->flags |= SMPS_OFFSET_EN;
1256                 break;
1257         }
1258
1259         config.dev = &pdev->dev;
1260         config.init_data = initdata;
1261         config.driver_data = info;
1262         config.of_node = pdev->dev.of_node;
1263
1264         rdev = regulator_register(&info->desc, &config);
1265         if (IS_ERR(rdev)) {
1266                 dev_err(&pdev->dev, "can't register %s, %ld\n",
1267                                 info->desc.name, PTR_ERR(rdev));
1268                 return PTR_ERR(rdev);
1269         }
1270         platform_set_drvdata(pdev, rdev);
1271
1272         if (twl_class_is_4030())
1273                 twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP,
1274                                                 info->remap);
1275
1276         /* NOTE:  many regulators support short-circuit IRQs (presentable
1277          * as REGULATOR_OVER_CURRENT notifications?) configured via:
1278          *  - SC_CONFIG
1279          *  - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
1280          *  - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
1281          *  - IT_CONFIG
1282          */
1283
1284         return 0;
1285 }
1286
1287 static int __devexit twlreg_remove(struct platform_device *pdev)
1288 {
1289         regulator_unregister(platform_get_drvdata(pdev));
1290         return 0;
1291 }
1292
1293 MODULE_ALIAS("platform:twl_reg");
1294
1295 static struct platform_driver twlreg_driver = {
1296         .probe          = twlreg_probe,
1297         .remove         = __devexit_p(twlreg_remove),
1298         /* NOTE: short name, to work around driver model truncation of
1299          * "twl_regulator.12" (and friends) to "twl_regulator.1".
1300          */
1301         .driver  = {
1302                 .name  = "twl_reg",
1303                 .owner = THIS_MODULE,
1304                 .of_match_table = of_match_ptr(twl_of_match),
1305         },
1306 };
1307
1308 static int __init twlreg_init(void)
1309 {
1310         return platform_driver_register(&twlreg_driver);
1311 }
1312 subsys_initcall(twlreg_init);
1313
1314 static void __exit twlreg_exit(void)
1315 {
1316         platform_driver_unregister(&twlreg_driver);
1317 }
1318 module_exit(twlreg_exit)
1319
1320 MODULE_DESCRIPTION("TWL regulator driver");
1321 MODULE_LICENSE("GPL");