1/* 2 * Driver for Regulator part of Palmas PMIC Chips 3 * 4 * Copyright 2011-2013 Texas Instruments Inc. 5 * 6 * Author: Graeme Gregory <gg@slimlogic.co.uk> 7 * Author: Ian Lartey <ian@slimlogic.co.uk> 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or (at your 12 * option) any later version. 13 * 14 */ 15 16#include <linux/kernel.h> 17#include <linux/module.h> 18#include <linux/init.h> 19#include <linux/err.h> 20#include <linux/platform_device.h> 21#include <linux/regulator/driver.h> 22#include <linux/regulator/machine.h> 23#include <linux/slab.h> 24#include <linux/regmap.h> 25#include <linux/mfd/palmas.h> 26#include <linux/of.h> 27#include <linux/of_platform.h> 28#include <linux/regulator/of_regulator.h> 29 30static const struct regulator_linear_range smps_low_ranges[] = { 31 REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), 32 REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0), 33 REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000), 34 REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0), 35}; 36 37static const struct regulator_linear_range smps_high_ranges[] = { 38 REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), 39 REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0), 40 REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000), 41 REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0), 42}; 43 44static struct palmas_regs_info palmas_generic_regs_info[] = { 45 { 46 .name = "SMPS12", 47 .sname = "smps1-in", 48 .vsel_addr = PALMAS_SMPS12_VOLTAGE, 49 .ctrl_addr = PALMAS_SMPS12_CTRL, 50 .tstep_addr = PALMAS_SMPS12_TSTEP, 51 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, 52 }, 53 { 54 .name = "SMPS123", 55 .sname = "smps1-in", 56 .vsel_addr = PALMAS_SMPS12_VOLTAGE, 57 .ctrl_addr = PALMAS_SMPS12_CTRL, 58 .tstep_addr = PALMAS_SMPS12_TSTEP, 59 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, 60 }, 61 { 62 .name = "SMPS3", 63 .sname = "smps3-in", 64 .vsel_addr = PALMAS_SMPS3_VOLTAGE, 65 .ctrl_addr = PALMAS_SMPS3_CTRL, 66 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3, 67 }, 68 { 69 .name = "SMPS45", 70 .sname = "smps4-in", 71 .vsel_addr = PALMAS_SMPS45_VOLTAGE, 72 .ctrl_addr = PALMAS_SMPS45_CTRL, 73 .tstep_addr = PALMAS_SMPS45_TSTEP, 74 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, 75 }, 76 { 77 .name = "SMPS457", 78 .sname = "smps4-in", 79 .vsel_addr = PALMAS_SMPS45_VOLTAGE, 80 .ctrl_addr = PALMAS_SMPS45_CTRL, 81 .tstep_addr = PALMAS_SMPS45_TSTEP, 82 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, 83 }, 84 { 85 .name = "SMPS6", 86 .sname = "smps6-in", 87 .vsel_addr = PALMAS_SMPS6_VOLTAGE, 88 .ctrl_addr = PALMAS_SMPS6_CTRL, 89 .tstep_addr = PALMAS_SMPS6_TSTEP, 90 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6, 91 }, 92 { 93 .name = "SMPS7", 94 .sname = "smps7-in", 95 .vsel_addr = PALMAS_SMPS7_VOLTAGE, 96 .ctrl_addr = PALMAS_SMPS7_CTRL, 97 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7, 98 }, 99 { 100 .name = "SMPS8", 101 .sname = "smps8-in", 102 .vsel_addr = PALMAS_SMPS8_VOLTAGE, 103 .ctrl_addr = PALMAS_SMPS8_CTRL, 104 .tstep_addr = PALMAS_SMPS8_TSTEP, 105 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8, 106 }, 107 { 108 .name = "SMPS9", 109 .sname = "smps9-in", 110 .vsel_addr = PALMAS_SMPS9_VOLTAGE, 111 .ctrl_addr = PALMAS_SMPS9_CTRL, 112 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9, 113 }, 114 { 115 .name = "SMPS10_OUT2", 116 .sname = "smps10-in", 117 .ctrl_addr = PALMAS_SMPS10_CTRL, 118 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, 119 }, 120 { 121 .name = "SMPS10_OUT1", 122 .sname = "smps10-out2", 123 .ctrl_addr = PALMAS_SMPS10_CTRL, 124 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, 125 }, 126 { 127 .name = "LDO1", 128 .sname = "ldo1-in", 129 .vsel_addr = PALMAS_LDO1_VOLTAGE, 130 .ctrl_addr = PALMAS_LDO1_CTRL, 131 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1, 132 }, 133 { 134 .name = "LDO2", 135 .sname = "ldo2-in", 136 .vsel_addr = PALMAS_LDO2_VOLTAGE, 137 .ctrl_addr = PALMAS_LDO2_CTRL, 138 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2, 139 }, 140 { 141 .name = "LDO3", 142 .sname = "ldo3-in", 143 .vsel_addr = PALMAS_LDO3_VOLTAGE, 144 .ctrl_addr = PALMAS_LDO3_CTRL, 145 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3, 146 }, 147 { 148 .name = "LDO4", 149 .sname = "ldo4-in", 150 .vsel_addr = PALMAS_LDO4_VOLTAGE, 151 .ctrl_addr = PALMAS_LDO4_CTRL, 152 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4, 153 }, 154 { 155 .name = "LDO5", 156 .sname = "ldo5-in", 157 .vsel_addr = PALMAS_LDO5_VOLTAGE, 158 .ctrl_addr = PALMAS_LDO5_CTRL, 159 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5, 160 }, 161 { 162 .name = "LDO6", 163 .sname = "ldo6-in", 164 .vsel_addr = PALMAS_LDO6_VOLTAGE, 165 .ctrl_addr = PALMAS_LDO6_CTRL, 166 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6, 167 }, 168 { 169 .name = "LDO7", 170 .sname = "ldo7-in", 171 .vsel_addr = PALMAS_LDO7_VOLTAGE, 172 .ctrl_addr = PALMAS_LDO7_CTRL, 173 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7, 174 }, 175 { 176 .name = "LDO8", 177 .sname = "ldo8-in", 178 .vsel_addr = PALMAS_LDO8_VOLTAGE, 179 .ctrl_addr = PALMAS_LDO8_CTRL, 180 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8, 181 }, 182 { 183 .name = "LDO9", 184 .sname = "ldo9-in", 185 .vsel_addr = PALMAS_LDO9_VOLTAGE, 186 .ctrl_addr = PALMAS_LDO9_CTRL, 187 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9, 188 }, 189 { 190 .name = "LDOLN", 191 .sname = "ldoln-in", 192 .vsel_addr = PALMAS_LDOLN_VOLTAGE, 193 .ctrl_addr = PALMAS_LDOLN_CTRL, 194 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN, 195 }, 196 { 197 .name = "LDOUSB", 198 .sname = "ldousb-in", 199 .vsel_addr = PALMAS_LDOUSB_VOLTAGE, 200 .ctrl_addr = PALMAS_LDOUSB_CTRL, 201 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB, 202 }, 203 { 204 .name = "REGEN1", 205 .ctrl_addr = PALMAS_REGEN1_CTRL, 206 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1, 207 }, 208 { 209 .name = "REGEN2", 210 .ctrl_addr = PALMAS_REGEN2_CTRL, 211 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2, 212 }, 213 { 214 .name = "REGEN3", 215 .ctrl_addr = PALMAS_REGEN3_CTRL, 216 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3, 217 }, 218 { 219 .name = "SYSEN1", 220 .ctrl_addr = PALMAS_SYSEN1_CTRL, 221 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1, 222 }, 223 { 224 .name = "SYSEN2", 225 .ctrl_addr = PALMAS_SYSEN2_CTRL, 226 .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2, 227 }, 228}; 229 230static struct palmas_regs_info tps65917_regs_info[] = { 231 { 232 .name = "SMPS1", 233 .sname = "smps1-in", 234 .vsel_addr = TPS65917_SMPS1_VOLTAGE, 235 .ctrl_addr = TPS65917_SMPS1_CTRL, 236 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS1, 237 }, 238 { 239 .name = "SMPS2", 240 .sname = "smps2-in", 241 .vsel_addr = TPS65917_SMPS2_VOLTAGE, 242 .ctrl_addr = TPS65917_SMPS2_CTRL, 243 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS2, 244 }, 245 { 246 .name = "SMPS3", 247 .sname = "smps3-in", 248 .vsel_addr = TPS65917_SMPS3_VOLTAGE, 249 .ctrl_addr = TPS65917_SMPS3_CTRL, 250 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS3, 251 }, 252 { 253 .name = "SMPS4", 254 .sname = "smps4-in", 255 .vsel_addr = TPS65917_SMPS4_VOLTAGE, 256 .ctrl_addr = TPS65917_SMPS4_CTRL, 257 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS4, 258 }, 259 { 260 .name = "SMPS5", 261 .sname = "smps5-in", 262 .vsel_addr = TPS65917_SMPS5_VOLTAGE, 263 .ctrl_addr = TPS65917_SMPS5_CTRL, 264 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS5, 265 }, 266 { 267 .name = "LDO1", 268 .sname = "ldo1-in", 269 .vsel_addr = TPS65917_LDO1_VOLTAGE, 270 .ctrl_addr = TPS65917_LDO1_CTRL, 271 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO1, 272 }, 273 { 274 .name = "LDO2", 275 .sname = "ldo2-in", 276 .vsel_addr = TPS65917_LDO2_VOLTAGE, 277 .ctrl_addr = TPS65917_LDO2_CTRL, 278 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO2, 279 }, 280 { 281 .name = "LDO3", 282 .sname = "ldo3-in", 283 .vsel_addr = TPS65917_LDO3_VOLTAGE, 284 .ctrl_addr = TPS65917_LDO3_CTRL, 285 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO3, 286 }, 287 { 288 .name = "LDO4", 289 .sname = "ldo4-in", 290 .vsel_addr = TPS65917_LDO4_VOLTAGE, 291 .ctrl_addr = TPS65917_LDO4_CTRL, 292 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO4, 293 }, 294 { 295 .name = "LDO5", 296 .sname = "ldo5-in", 297 .vsel_addr = TPS65917_LDO5_VOLTAGE, 298 .ctrl_addr = TPS65917_LDO5_CTRL, 299 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO5, 300 }, 301 { 302 .name = "REGEN1", 303 .ctrl_addr = TPS65917_REGEN1_CTRL, 304 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN1, 305 }, 306 { 307 .name = "REGEN2", 308 .ctrl_addr = TPS65917_REGEN2_CTRL, 309 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN2, 310 }, 311 { 312 .name = "REGEN3", 313 .ctrl_addr = TPS65917_REGEN3_CTRL, 314 .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN3, 315 }, 316}; 317 318#define EXTERNAL_REQUESTOR(_id, _offset, _pos) \ 319 [PALMAS_EXTERNAL_REQSTR_ID_##_id] = { \ 320 .id = PALMAS_EXTERNAL_REQSTR_ID_##_id, \ 321 .reg_offset = _offset, \ 322 .bit_pos = _pos, \ 323 } 324 325static struct palmas_sleep_requestor_info palma_sleep_req_info[] = { 326 EXTERNAL_REQUESTOR(REGEN1, 0, 0), 327 EXTERNAL_REQUESTOR(REGEN2, 0, 1), 328 EXTERNAL_REQUESTOR(SYSEN1, 0, 2), 329 EXTERNAL_REQUESTOR(SYSEN2, 0, 3), 330 EXTERNAL_REQUESTOR(CLK32KG, 0, 4), 331 EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5), 332 EXTERNAL_REQUESTOR(REGEN3, 0, 6), 333 EXTERNAL_REQUESTOR(SMPS12, 1, 0), 334 EXTERNAL_REQUESTOR(SMPS3, 1, 1), 335 EXTERNAL_REQUESTOR(SMPS45, 1, 2), 336 EXTERNAL_REQUESTOR(SMPS6, 1, 3), 337 EXTERNAL_REQUESTOR(SMPS7, 1, 4), 338 EXTERNAL_REQUESTOR(SMPS8, 1, 5), 339 EXTERNAL_REQUESTOR(SMPS9, 1, 6), 340 EXTERNAL_REQUESTOR(SMPS10, 1, 7), 341 EXTERNAL_REQUESTOR(LDO1, 2, 0), 342 EXTERNAL_REQUESTOR(LDO2, 2, 1), 343 EXTERNAL_REQUESTOR(LDO3, 2, 2), 344 EXTERNAL_REQUESTOR(LDO4, 2, 3), 345 EXTERNAL_REQUESTOR(LDO5, 2, 4), 346 EXTERNAL_REQUESTOR(LDO6, 2, 5), 347 EXTERNAL_REQUESTOR(LDO7, 2, 6), 348 EXTERNAL_REQUESTOR(LDO8, 2, 7), 349 EXTERNAL_REQUESTOR(LDO9, 3, 0), 350 EXTERNAL_REQUESTOR(LDOLN, 3, 1), 351 EXTERNAL_REQUESTOR(LDOUSB, 3, 2), 352}; 353 354#define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos) \ 355 [TPS65917_EXTERNAL_REQSTR_ID_##_id] = { \ 356 .id = TPS65917_EXTERNAL_REQSTR_ID_##_id, \ 357 .reg_offset = _offset, \ 358 .bit_pos = _pos, \ 359 } 360 361static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = { 362 EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0), 363 EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1), 364 EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6), 365 EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0), 366 EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1), 367 EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2), 368 EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3), 369 EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4), 370 EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0), 371 EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1), 372 EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2), 373 EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3), 374 EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4), 375}; 376 377static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500}; 378 379#define SMPS_CTRL_MODE_OFF 0x00 380#define SMPS_CTRL_MODE_ON 0x01 381#define SMPS_CTRL_MODE_ECO 0x02 382#define SMPS_CTRL_MODE_PWM 0x03 383 384#define PALMAS_SMPS_NUM_VOLTAGES 122 385#define PALMAS_SMPS10_NUM_VOLTAGES 2 386#define PALMAS_LDO_NUM_VOLTAGES 50 387 388#define SMPS10_VSEL (1<<3) 389#define SMPS10_BOOST_EN (1<<2) 390#define SMPS10_BYPASS_EN (1<<1) 391#define SMPS10_SWITCH_EN (1<<0) 392 393#define REGULATOR_SLAVE 0 394 395static int palmas_smps_read(struct palmas *palmas, unsigned int reg, 396 unsigned int *dest) 397{ 398 unsigned int addr; 399 400 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); 401 402 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); 403} 404 405static int palmas_smps_write(struct palmas *palmas, unsigned int reg, 406 unsigned int value) 407{ 408 unsigned int addr; 409 410 addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); 411 412 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); 413} 414 415static int palmas_ldo_read(struct palmas *palmas, unsigned int reg, 416 unsigned int *dest) 417{ 418 unsigned int addr; 419 420 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); 421 422 return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); 423} 424 425static int palmas_ldo_write(struct palmas *palmas, unsigned int reg, 426 unsigned int value) 427{ 428 unsigned int addr; 429 430 addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); 431 432 return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); 433} 434 435static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) 436{ 437 int id = rdev_get_id(dev); 438 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 439 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 440 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 441 unsigned int reg; 442 bool rail_enable = true; 443 444 palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, ®); 445 446 reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 447 448 if (reg == SMPS_CTRL_MODE_OFF) 449 rail_enable = false; 450 451 switch (mode) { 452 case REGULATOR_MODE_NORMAL: 453 reg |= SMPS_CTRL_MODE_ON; 454 break; 455 case REGULATOR_MODE_IDLE: 456 reg |= SMPS_CTRL_MODE_ECO; 457 break; 458 case REGULATOR_MODE_FAST: 459 reg |= SMPS_CTRL_MODE_PWM; 460 break; 461 default: 462 return -EINVAL; 463 } 464 465 pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 466 if (rail_enable) 467 palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg); 468 469 /* Switch the enable value to ensure this is used for enable */ 470 pmic->desc[id].enable_val = pmic->current_reg_mode[id]; 471 472 return 0; 473} 474 475static unsigned int palmas_get_mode_smps(struct regulator_dev *dev) 476{ 477 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 478 int id = rdev_get_id(dev); 479 unsigned int reg; 480 481 reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 482 483 switch (reg) { 484 case SMPS_CTRL_MODE_ON: 485 return REGULATOR_MODE_NORMAL; 486 case SMPS_CTRL_MODE_ECO: 487 return REGULATOR_MODE_IDLE; 488 case SMPS_CTRL_MODE_PWM: 489 return REGULATOR_MODE_FAST; 490 } 491 492 return 0; 493} 494 495static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev, 496 int ramp_delay) 497{ 498 int id = rdev_get_id(rdev); 499 struct palmas_pmic *pmic = rdev_get_drvdata(rdev); 500 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 501 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 502 unsigned int reg = 0; 503 int ret; 504 505 /* SMPS3 and SMPS7 do not have tstep_addr setting */ 506 switch (id) { 507 case PALMAS_REG_SMPS3: 508 case PALMAS_REG_SMPS7: 509 return 0; 510 } 511 512 if (ramp_delay <= 0) 513 reg = 0; 514 else if (ramp_delay <= 2500) 515 reg = 3; 516 else if (ramp_delay <= 5000) 517 reg = 2; 518 else 519 reg = 1; 520 521 ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg); 522 if (ret < 0) { 523 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret); 524 return ret; 525 } 526 527 pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg]; 528 return ret; 529} 530 531static struct regulator_ops palmas_ops_smps = { 532 .is_enabled = regulator_is_enabled_regmap, 533 .enable = regulator_enable_regmap, 534 .disable = regulator_disable_regmap, 535 .set_mode = palmas_set_mode_smps, 536 .get_mode = palmas_get_mode_smps, 537 .get_voltage_sel = regulator_get_voltage_sel_regmap, 538 .set_voltage_sel = regulator_set_voltage_sel_regmap, 539 .list_voltage = regulator_list_voltage_linear_range, 540 .map_voltage = regulator_map_voltage_linear_range, 541 .set_voltage_time_sel = regulator_set_voltage_time_sel, 542 .set_ramp_delay = palmas_smps_set_ramp_delay, 543}; 544 545static struct regulator_ops palmas_ops_ext_control_smps = { 546 .set_mode = palmas_set_mode_smps, 547 .get_mode = palmas_get_mode_smps, 548 .get_voltage_sel = regulator_get_voltage_sel_regmap, 549 .set_voltage_sel = regulator_set_voltage_sel_regmap, 550 .list_voltage = regulator_list_voltage_linear_range, 551 .map_voltage = regulator_map_voltage_linear_range, 552 .set_voltage_time_sel = regulator_set_voltage_time_sel, 553 .set_ramp_delay = palmas_smps_set_ramp_delay, 554}; 555 556static struct regulator_ops palmas_ops_smps10 = { 557 .is_enabled = regulator_is_enabled_regmap, 558 .enable = regulator_enable_regmap, 559 .disable = regulator_disable_regmap, 560 .get_voltage_sel = regulator_get_voltage_sel_regmap, 561 .set_voltage_sel = regulator_set_voltage_sel_regmap, 562 .list_voltage = regulator_list_voltage_linear, 563 .map_voltage = regulator_map_voltage_linear, 564 .set_bypass = regulator_set_bypass_regmap, 565 .get_bypass = regulator_get_bypass_regmap, 566}; 567 568static struct regulator_ops tps65917_ops_smps = { 569 .is_enabled = regulator_is_enabled_regmap, 570 .enable = regulator_enable_regmap, 571 .disable = regulator_disable_regmap, 572 .set_mode = palmas_set_mode_smps, 573 .get_mode = palmas_get_mode_smps, 574 .get_voltage_sel = regulator_get_voltage_sel_regmap, 575 .set_voltage_sel = regulator_set_voltage_sel_regmap, 576 .list_voltage = regulator_list_voltage_linear_range, 577 .map_voltage = regulator_map_voltage_linear_range, 578 .set_voltage_time_sel = regulator_set_voltage_time_sel, 579}; 580 581static struct regulator_ops tps65917_ops_ext_control_smps = { 582 .set_mode = palmas_set_mode_smps, 583 .get_mode = palmas_get_mode_smps, 584 .get_voltage_sel = regulator_get_voltage_sel_regmap, 585 .set_voltage_sel = regulator_set_voltage_sel_regmap, 586 .list_voltage = regulator_list_voltage_linear_range, 587 .map_voltage = regulator_map_voltage_linear_range, 588}; 589 590static int palmas_is_enabled_ldo(struct regulator_dev *dev) 591{ 592 int id = rdev_get_id(dev); 593 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 594 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 595 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 596 unsigned int reg; 597 598 palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, ®); 599 600 reg &= PALMAS_LDO1_CTRL_STATUS; 601 602 return !!(reg); 603} 604 605static struct regulator_ops palmas_ops_ldo = { 606 .is_enabled = palmas_is_enabled_ldo, 607 .enable = regulator_enable_regmap, 608 .disable = regulator_disable_regmap, 609 .get_voltage_sel = regulator_get_voltage_sel_regmap, 610 .set_voltage_sel = regulator_set_voltage_sel_regmap, 611 .list_voltage = regulator_list_voltage_linear, 612 .map_voltage = regulator_map_voltage_linear, 613}; 614 615static struct regulator_ops palmas_ops_ext_control_ldo = { 616 .get_voltage_sel = regulator_get_voltage_sel_regmap, 617 .set_voltage_sel = regulator_set_voltage_sel_regmap, 618 .list_voltage = regulator_list_voltage_linear, 619 .map_voltage = regulator_map_voltage_linear, 620}; 621 622static struct regulator_ops palmas_ops_extreg = { 623 .is_enabled = regulator_is_enabled_regmap, 624 .enable = regulator_enable_regmap, 625 .disable = regulator_disable_regmap, 626}; 627 628static struct regulator_ops palmas_ops_ext_control_extreg = { 629}; 630 631static struct regulator_ops tps65917_ops_ldo = { 632 .is_enabled = palmas_is_enabled_ldo, 633 .enable = regulator_enable_regmap, 634 .disable = regulator_disable_regmap, 635 .get_voltage_sel = regulator_get_voltage_sel_regmap, 636 .set_voltage_sel = regulator_set_voltage_sel_regmap, 637 .list_voltage = regulator_list_voltage_linear, 638 .map_voltage = regulator_map_voltage_linear, 639 .set_voltage_time_sel = regulator_set_voltage_time_sel, 640}; 641 642static int palmas_regulator_config_external(struct palmas *palmas, int id, 643 struct palmas_reg_init *reg_init) 644{ 645 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 646 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 647 int ret; 648 649 ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id, 650 reg_init->roof_floor, true); 651 if (ret < 0) 652 dev_err(palmas->dev, 653 "Ext control config for regulator %d failed %d\n", 654 id, ret); 655 return ret; 656} 657 658/* 659 * setup the hardware based sleep configuration of the SMPS/LDO regulators 660 * from the platform data. This is different to the software based control 661 * supported by the regulator framework as it is controlled by toggling 662 * pins on the PMIC such as PREQ, SYSEN, ... 663 */ 664static int palmas_smps_init(struct palmas *palmas, int id, 665 struct palmas_reg_init *reg_init) 666{ 667 unsigned int reg; 668 int ret; 669 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 670 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 671 unsigned int addr = rinfo->ctrl_addr; 672 673 ret = palmas_smps_read(palmas, addr, ®); 674 if (ret) 675 return ret; 676 677 switch (id) { 678 case PALMAS_REG_SMPS10_OUT1: 679 case PALMAS_REG_SMPS10_OUT2: 680 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; 681 if (reg_init->mode_sleep) 682 reg |= reg_init->mode_sleep << 683 PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; 684 break; 685 default: 686 if (reg_init->warm_reset) 687 reg |= PALMAS_SMPS12_CTRL_WR_S; 688 else 689 reg &= ~PALMAS_SMPS12_CTRL_WR_S; 690 691 if (reg_init->roof_floor) 692 reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 693 else 694 reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 695 696 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK; 697 if (reg_init->mode_sleep) 698 reg |= reg_init->mode_sleep << 699 PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; 700 } 701 702 ret = palmas_smps_write(palmas, addr, reg); 703 if (ret) 704 return ret; 705 706 if (rinfo->vsel_addr && reg_init->vsel) { 707 708 reg = reg_init->vsel; 709 710 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg); 711 if (ret) 712 return ret; 713 } 714 715 if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) && 716 (id != PALMAS_REG_SMPS10_OUT2)) { 717 /* Enable externally controlled regulator */ 718 ret = palmas_smps_read(palmas, addr, ®); 719 if (ret < 0) 720 return ret; 721 722 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) { 723 reg |= SMPS_CTRL_MODE_ON; 724 ret = palmas_smps_write(palmas, addr, reg); 725 if (ret < 0) 726 return ret; 727 } 728 return palmas_regulator_config_external(palmas, id, reg_init); 729 } 730 return 0; 731} 732 733static int palmas_ldo_init(struct palmas *palmas, int id, 734 struct palmas_reg_init *reg_init) 735{ 736 unsigned int reg; 737 unsigned int addr; 738 int ret; 739 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 740 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 741 742 addr = rinfo->ctrl_addr; 743 744 ret = palmas_ldo_read(palmas, addr, ®); 745 if (ret) 746 return ret; 747 748 if (reg_init->warm_reset) 749 reg |= PALMAS_LDO1_CTRL_WR_S; 750 else 751 reg &= ~PALMAS_LDO1_CTRL_WR_S; 752 753 if (reg_init->mode_sleep) 754 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP; 755 else 756 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP; 757 758 ret = palmas_ldo_write(palmas, addr, reg); 759 if (ret) 760 return ret; 761 762 if (reg_init->roof_floor) { 763 /* Enable externally controlled regulator */ 764 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE, 765 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE, 766 PALMAS_LDO1_CTRL_MODE_ACTIVE); 767 if (ret < 0) { 768 dev_err(palmas->dev, 769 "LDO Register 0x%02x update failed %d\n", 770 addr, ret); 771 return ret; 772 } 773 return palmas_regulator_config_external(palmas, id, reg_init); 774 } 775 return 0; 776} 777 778static int palmas_extreg_init(struct palmas *palmas, int id, 779 struct palmas_reg_init *reg_init) 780{ 781 unsigned int addr; 782 int ret; 783 unsigned int val = 0; 784 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 785 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 786 787 addr = rinfo->ctrl_addr; 788 789 if (reg_init->mode_sleep) 790 val = PALMAS_REGEN1_CTRL_MODE_SLEEP; 791 792 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 793 addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); 794 if (ret < 0) { 795 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", 796 addr, ret); 797 return ret; 798 } 799 800 if (reg_init->roof_floor) { 801 /* Enable externally controlled regulator */ 802 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 803 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE, 804 PALMAS_REGEN1_CTRL_MODE_ACTIVE); 805 if (ret < 0) { 806 dev_err(palmas->dev, 807 "Resource Register 0x%02x update failed %d\n", 808 addr, ret); 809 return ret; 810 } 811 return palmas_regulator_config_external(palmas, id, reg_init); 812 } 813 return 0; 814} 815 816static void palmas_enable_ldo8_track(struct palmas *palmas) 817{ 818 unsigned int reg; 819 unsigned int addr; 820 int ret; 821 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 822 struct palmas_regs_info *rinfo; 823 824 rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8]; 825 addr = rinfo->ctrl_addr; 826 827 ret = palmas_ldo_read(palmas, addr, ®); 828 if (ret) { 829 dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); 830 return; 831 } 832 833 reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; 834 ret = palmas_ldo_write(palmas, addr, reg); 835 if (ret < 0) { 836 dev_err(palmas->dev, "Error in enabling tracking mode\n"); 837 return; 838 } 839 /* 840 * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 841 * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, 842 * and can be set from 0.45 to 1.65 V. 843 */ 844 addr = rinfo->vsel_addr; 845 ret = palmas_ldo_read(palmas, addr, ®); 846 if (ret) { 847 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); 848 return; 849 } 850 851 reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; 852 ret = palmas_ldo_write(palmas, addr, reg); 853 if (ret < 0) 854 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); 855 856 return; 857} 858 859static int palmas_ldo_registration(struct palmas_pmic *pmic, 860 struct palmas_pmic_driver_data *ddata, 861 struct palmas_pmic_platform_data *pdata, 862 const char *pdev_name, 863 struct regulator_config config) 864{ 865 int id, ret; 866 struct regulator_dev *rdev; 867 struct palmas_reg_init *reg_init; 868 struct palmas_regs_info *rinfo; 869 struct regulator_desc *desc; 870 871 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 872 if (pdata && pdata->reg_init[id]) 873 reg_init = pdata->reg_init[id]; 874 else 875 reg_init = NULL; 876 877 rinfo = &ddata->palmas_regs_info[id]; 878 /* Miss out regulators which are not available due 879 * to alternate functions. 880 */ 881 882 /* Register the regulators */ 883 desc = &pmic->desc[id]; 884 desc->name = rinfo->name; 885 desc->id = id; 886 desc->type = REGULATOR_VOLTAGE; 887 desc->owner = THIS_MODULE; 888 889 if (id < PALMAS_REG_REGEN1) { 890 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; 891 if (reg_init && reg_init->roof_floor) 892 desc->ops = &palmas_ops_ext_control_ldo; 893 else 894 desc->ops = &palmas_ops_ldo; 895 desc->min_uV = 900000; 896 desc->uV_step = 50000; 897 desc->linear_min_sel = 1; 898 desc->enable_time = 500; 899 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 900 rinfo->vsel_addr); 901 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; 902 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 903 rinfo->ctrl_addr); 904 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; 905 906 /* Check if LDO8 is in tracking mode or not */ 907 if (pdata && (id == PALMAS_REG_LDO8) && 908 pdata->enable_ldo8_tracking) { 909 palmas_enable_ldo8_track(pmic->palmas); 910 desc->min_uV = 450000; 911 desc->uV_step = 25000; 912 } 913 914 /* LOD6 in vibrator mode will have enable time 2000us */ 915 if (pdata && pdata->ldo6_vibrator && 916 (id == PALMAS_REG_LDO6)) 917 desc->enable_time = 2000; 918 } else { 919 if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3) 920 continue; 921 922 desc->n_voltages = 1; 923 if (reg_init && reg_init->roof_floor) 924 desc->ops = &palmas_ops_ext_control_extreg; 925 else 926 desc->ops = &palmas_ops_extreg; 927 desc->enable_reg = 928 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 929 rinfo->ctrl_addr); 930 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; 931 } 932 933 if (pdata) 934 config.init_data = pdata->reg_data[id]; 935 else 936 config.init_data = NULL; 937 938 desc->supply_name = rinfo->sname; 939 config.of_node = ddata->palmas_matches[id].of_node; 940 941 rdev = devm_regulator_register(pmic->dev, desc, &config); 942 if (IS_ERR(rdev)) { 943 dev_err(pmic->dev, 944 "failed to register %s regulator\n", 945 pdev_name); 946 return PTR_ERR(rdev); 947 } 948 949 /* Save regulator for cleanup */ 950 pmic->rdev[id] = rdev; 951 952 /* Initialise sleep/init values from platform data */ 953 if (pdata) { 954 reg_init = pdata->reg_init[id]; 955 if (reg_init) { 956 if (id <= ddata->ldo_end) 957 ret = palmas_ldo_init(pmic->palmas, id, 958 reg_init); 959 else 960 ret = palmas_extreg_init(pmic->palmas, 961 id, reg_init); 962 if (ret) 963 return ret; 964 } 965 } 966 } 967 968 return 0; 969} 970 971static int tps65917_ldo_registration(struct palmas_pmic *pmic, 972 struct palmas_pmic_driver_data *ddata, 973 struct palmas_pmic_platform_data *pdata, 974 const char *pdev_name, 975 struct regulator_config config) 976{ 977 int id, ret; 978 struct regulator_dev *rdev; 979 struct palmas_reg_init *reg_init; 980 struct palmas_regs_info *rinfo; 981 struct regulator_desc *desc; 982 983 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 984 if (pdata && pdata->reg_init[id]) 985 reg_init = pdata->reg_init[id]; 986 else 987 reg_init = NULL; 988 989 /* Miss out regulators which are not available due 990 * to alternate functions. 991 */ 992 rinfo = &ddata->palmas_regs_info[id]; 993 994 /* Register the regulators */ 995 desc = &pmic->desc[id]; 996 desc->name = rinfo->name; 997 desc->id = id; 998 desc->type = REGULATOR_VOLTAGE; 999 desc->owner = THIS_MODULE; 1000 1001 if (id < TPS65917_REG_REGEN1) { 1002 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; 1003 if (reg_init && reg_init->roof_floor) 1004 desc->ops = &palmas_ops_ext_control_ldo; 1005 else 1006 desc->ops = &tps65917_ops_ldo; 1007 desc->min_uV = 900000; 1008 desc->uV_step = 50000; 1009 desc->linear_min_sel = 1; 1010 desc->enable_time = 500; 1011 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1012 rinfo->vsel_addr); 1013 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; 1014 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1015 rinfo->ctrl_addr); 1016 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; 1017 /* 1018 * To be confirmed. Discussion on going with PMIC Team. 1019 * It is of the order of ~60mV/uS. 1020 */ 1021 desc->ramp_delay = 2500; 1022 } else { 1023 desc->n_voltages = 1; 1024 if (reg_init && reg_init->roof_floor) 1025 desc->ops = &palmas_ops_ext_control_extreg; 1026 else 1027 desc->ops = &palmas_ops_extreg; 1028 desc->enable_reg = 1029 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 1030 rinfo->ctrl_addr); 1031 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; 1032 } 1033 1034 if (pdata) 1035 config.init_data = pdata->reg_data[id]; 1036 else 1037 config.init_data = NULL; 1038 1039 desc->supply_name = rinfo->sname; 1040 config.of_node = ddata->palmas_matches[id].of_node; 1041 1042 rdev = devm_regulator_register(pmic->dev, desc, &config); 1043 if (IS_ERR(rdev)) { 1044 dev_err(pmic->dev, 1045 "failed to register %s regulator\n", 1046 pdev_name); 1047 return PTR_ERR(rdev); 1048 } 1049 1050 /* Save regulator for cleanup */ 1051 pmic->rdev[id] = rdev; 1052 1053 /* Initialise sleep/init values from platform data */ 1054 if (pdata) { 1055 reg_init = pdata->reg_init[id]; 1056 if (reg_init) { 1057 if (id < TPS65917_REG_REGEN1) 1058 ret = palmas_ldo_init(pmic->palmas, 1059 id, reg_init); 1060 else 1061 ret = palmas_extreg_init(pmic->palmas, 1062 id, reg_init); 1063 if (ret) 1064 return ret; 1065 } 1066 } 1067 } 1068 1069 return 0; 1070} 1071 1072static int palmas_smps_registration(struct palmas_pmic *pmic, 1073 struct palmas_pmic_driver_data *ddata, 1074 struct palmas_pmic_platform_data *pdata, 1075 const char *pdev_name, 1076 struct regulator_config config) 1077{ 1078 int id, ret; 1079 unsigned int addr, reg; 1080 struct regulator_dev *rdev; 1081 struct palmas_reg_init *reg_init; 1082 struct palmas_regs_info *rinfo; 1083 struct regulator_desc *desc; 1084 1085 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1086 bool ramp_delay_support = false; 1087 1088 /* 1089 * Miss out regulators which are not available due 1090 * to slaving configurations. 1091 */ 1092 switch (id) { 1093 case PALMAS_REG_SMPS12: 1094 case PALMAS_REG_SMPS3: 1095 if (pmic->smps123) 1096 continue; 1097 if (id == PALMAS_REG_SMPS12) 1098 ramp_delay_support = true; 1099 break; 1100 case PALMAS_REG_SMPS123: 1101 if (!pmic->smps123) 1102 continue; 1103 ramp_delay_support = true; 1104 break; 1105 case PALMAS_REG_SMPS45: 1106 case PALMAS_REG_SMPS7: 1107 if (pmic->smps457) 1108 continue; 1109 if (id == PALMAS_REG_SMPS45) 1110 ramp_delay_support = true; 1111 break; 1112 case PALMAS_REG_SMPS457: 1113 if (!pmic->smps457) 1114 continue; 1115 ramp_delay_support = true; 1116 break; 1117 case PALMAS_REG_SMPS10_OUT1: 1118 case PALMAS_REG_SMPS10_OUT2: 1119 if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST)) 1120 continue; 1121 } 1122 rinfo = &ddata->palmas_regs_info[id]; 1123 desc = &pmic->desc[id]; 1124 1125 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) 1126 ramp_delay_support = true; 1127 1128 if (ramp_delay_support) { 1129 addr = rinfo->tstep_addr; 1130 ret = palmas_smps_read(pmic->palmas, addr, ®); 1131 if (ret < 0) { 1132 dev_err(pmic->dev, 1133 "reading TSTEP reg failed: %d\n", ret); 1134 return ret; 1135 } 1136 desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3]; 1137 pmic->ramp_delay[id] = desc->ramp_delay; 1138 } 1139 1140 /* Initialise sleep/init values from platform data */ 1141 if (pdata && pdata->reg_init[id]) { 1142 reg_init = pdata->reg_init[id]; 1143 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1144 if (ret) 1145 return ret; 1146 } else { 1147 reg_init = NULL; 1148 } 1149 1150 /* Register the regulators */ 1151 desc->name = rinfo->name; 1152 desc->id = id; 1153 1154 switch (id) { 1155 case PALMAS_REG_SMPS10_OUT1: 1156 case PALMAS_REG_SMPS10_OUT2: 1157 desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; 1158 desc->ops = &palmas_ops_smps10; 1159 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1160 PALMAS_SMPS10_CTRL); 1161 desc->vsel_mask = SMPS10_VSEL; 1162 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1163 PALMAS_SMPS10_CTRL); 1164 if (id == PALMAS_REG_SMPS10_OUT1) 1165 desc->enable_mask = SMPS10_SWITCH_EN; 1166 else 1167 desc->enable_mask = SMPS10_BOOST_EN; 1168 desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1169 PALMAS_SMPS10_CTRL); 1170 desc->bypass_mask = SMPS10_BYPASS_EN; 1171 desc->min_uV = 3750000; 1172 desc->uV_step = 1250000; 1173 break; 1174 default: 1175 /* 1176 * Read and store the RANGE bit for later use 1177 * This must be done before regulator is probed, 1178 * otherwise we error in probe with unsupportable 1179 * ranges. Read the current smps mode for later use. 1180 */ 1181 addr = rinfo->vsel_addr; 1182 desc->n_linear_ranges = 3; 1183 1184 ret = palmas_smps_read(pmic->palmas, addr, ®); 1185 if (ret) 1186 return ret; 1187 if (reg & PALMAS_SMPS12_VOLTAGE_RANGE) 1188 pmic->range[id] = 1; 1189 if (pmic->range[id]) 1190 desc->linear_ranges = smps_high_ranges; 1191 else 1192 desc->linear_ranges = smps_low_ranges; 1193 1194 if (reg_init && reg_init->roof_floor) 1195 desc->ops = &palmas_ops_ext_control_smps; 1196 else 1197 desc->ops = &palmas_ops_smps; 1198 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1199 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1200 rinfo->vsel_addr); 1201 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1202 1203 /* Read the smps mode for later use. */ 1204 addr = rinfo->ctrl_addr; 1205 ret = palmas_smps_read(pmic->palmas, addr, ®); 1206 if (ret) 1207 return ret; 1208 pmic->current_reg_mode[id] = reg & 1209 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1210 1211 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1212 rinfo->ctrl_addr); 1213 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1214 /* set_mode overrides this value */ 1215 desc->enable_val = SMPS_CTRL_MODE_ON; 1216 } 1217 1218 desc->type = REGULATOR_VOLTAGE; 1219 desc->owner = THIS_MODULE; 1220 1221 if (pdata) 1222 config.init_data = pdata->reg_data[id]; 1223 else 1224 config.init_data = NULL; 1225 1226 desc->supply_name = rinfo->sname; 1227 config.of_node = ddata->palmas_matches[id].of_node; 1228 1229 rdev = devm_regulator_register(pmic->dev, desc, &config); 1230 if (IS_ERR(rdev)) { 1231 dev_err(pmic->dev, 1232 "failed to register %s regulator\n", 1233 pdev_name); 1234 return PTR_ERR(rdev); 1235 } 1236 1237 /* Save regulator for cleanup */ 1238 pmic->rdev[id] = rdev; 1239 } 1240 1241 return 0; 1242} 1243 1244static int tps65917_smps_registration(struct palmas_pmic *pmic, 1245 struct palmas_pmic_driver_data *ddata, 1246 struct palmas_pmic_platform_data *pdata, 1247 const char *pdev_name, 1248 struct regulator_config config) 1249{ 1250 int id, ret; 1251 unsigned int addr, reg; 1252 struct regulator_dev *rdev; 1253 struct palmas_reg_init *reg_init; 1254 struct palmas_regs_info *rinfo; 1255 struct regulator_desc *desc; 1256 1257 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1258 /* 1259 * Miss out regulators which are not available due 1260 * to slaving configurations. 1261 */ 1262 desc = &pmic->desc[id]; 1263 desc->n_linear_ranges = 3; 1264 if ((id == TPS65917_REG_SMPS2) && pmic->smps12) 1265 continue; 1266 1267 /* Initialise sleep/init values from platform data */ 1268 if (pdata && pdata->reg_init[id]) { 1269 reg_init = pdata->reg_init[id]; 1270 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1271 if (ret) 1272 return ret; 1273 } else { 1274 reg_init = NULL; 1275 } 1276 rinfo = &ddata->palmas_regs_info[id]; 1277 1278 /* Register the regulators */ 1279 desc->name = rinfo->name; 1280 desc->id = id; 1281 1282 /* 1283 * Read and store the RANGE bit for later use 1284 * This must be done before regulator is probed, 1285 * otherwise we error in probe with unsupportable 1286 * ranges. Read the current smps mode for later use. 1287 */ 1288 addr = rinfo->vsel_addr; 1289 1290 ret = palmas_smps_read(pmic->palmas, addr, ®); 1291 if (ret) 1292 return ret; 1293 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE) 1294 pmic->range[id] = 1; 1295 1296 if (pmic->range[id]) 1297 desc->linear_ranges = smps_high_ranges; 1298 else 1299 desc->linear_ranges = smps_low_ranges; 1300 1301 if (reg_init && reg_init->roof_floor) 1302 desc->ops = &tps65917_ops_ext_control_smps; 1303 else 1304 desc->ops = &tps65917_ops_smps; 1305 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1306 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1307 rinfo->vsel_addr); 1308 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1309 desc->ramp_delay = 2500; 1310 1311 /* Read the smps mode for later use. */ 1312 addr = rinfo->ctrl_addr; 1313 ret = palmas_smps_read(pmic->palmas, addr, ®); 1314 if (ret) 1315 return ret; 1316 pmic->current_reg_mode[id] = reg & 1317 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1318 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1319 rinfo->ctrl_addr); 1320 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1321 /* set_mode overrides this value */ 1322 desc->enable_val = SMPS_CTRL_MODE_ON; 1323 1324 desc->type = REGULATOR_VOLTAGE; 1325 desc->owner = THIS_MODULE; 1326 1327 if (pdata) 1328 config.init_data = pdata->reg_data[id]; 1329 else 1330 config.init_data = NULL; 1331 1332 desc->supply_name = rinfo->sname; 1333 config.of_node = ddata->palmas_matches[id].of_node; 1334 1335 rdev = devm_regulator_register(pmic->dev, desc, &config); 1336 if (IS_ERR(rdev)) { 1337 dev_err(pmic->dev, 1338 "failed to register %s regulator\n", 1339 pdev_name); 1340 return PTR_ERR(rdev); 1341 } 1342 1343 /* Save regulator for cleanup */ 1344 pmic->rdev[id] = rdev; 1345 } 1346 1347 return 0; 1348} 1349 1350static struct of_regulator_match palmas_matches[] = { 1351 { .name = "smps12", }, 1352 { .name = "smps123", }, 1353 { .name = "smps3", }, 1354 { .name = "smps45", }, 1355 { .name = "smps457", }, 1356 { .name = "smps6", }, 1357 { .name = "smps7", }, 1358 { .name = "smps8", }, 1359 { .name = "smps9", }, 1360 { .name = "smps10_out2", }, 1361 { .name = "smps10_out1", }, 1362 { .name = "ldo1", }, 1363 { .name = "ldo2", }, 1364 { .name = "ldo3", }, 1365 { .name = "ldo4", }, 1366 { .name = "ldo5", }, 1367 { .name = "ldo6", }, 1368 { .name = "ldo7", }, 1369 { .name = "ldo8", }, 1370 { .name = "ldo9", }, 1371 { .name = "ldoln", }, 1372 { .name = "ldousb", }, 1373 { .name = "regen1", }, 1374 { .name = "regen2", }, 1375 { .name = "regen3", }, 1376 { .name = "sysen1", }, 1377 { .name = "sysen2", }, 1378}; 1379 1380static struct of_regulator_match tps65917_matches[] = { 1381 { .name = "smps1", }, 1382 { .name = "smps2", }, 1383 { .name = "smps3", }, 1384 { .name = "smps4", }, 1385 { .name = "smps5", }, 1386 { .name = "ldo1", }, 1387 { .name = "ldo2", }, 1388 { .name = "ldo3", }, 1389 { .name = "ldo4", }, 1390 { .name = "ldo5", }, 1391 { .name = "regen1", }, 1392 { .name = "regen2", }, 1393 { .name = "regen3", }, 1394 { .name = "sysen1", }, 1395 { .name = "sysen2", }, 1396}; 1397 1398static struct palmas_pmic_driver_data palmas_ddata = { 1399 .smps_start = PALMAS_REG_SMPS12, 1400 .smps_end = PALMAS_REG_SMPS10_OUT1, 1401 .ldo_begin = PALMAS_REG_LDO1, 1402 .ldo_end = PALMAS_REG_LDOUSB, 1403 .max_reg = PALMAS_NUM_REGS, 1404 .has_regen3 = true, 1405 .palmas_regs_info = palmas_generic_regs_info, 1406 .palmas_matches = palmas_matches, 1407 .sleep_req_info = palma_sleep_req_info, 1408 .smps_register = palmas_smps_registration, 1409 .ldo_register = palmas_ldo_registration, 1410}; 1411 1412static struct palmas_pmic_driver_data tps65917_ddata = { 1413 .smps_start = TPS65917_REG_SMPS1, 1414 .smps_end = TPS65917_REG_SMPS5, 1415 .ldo_begin = TPS65917_REG_LDO1, 1416 .ldo_end = TPS65917_REG_LDO5, 1417 .max_reg = TPS65917_NUM_REGS, 1418 .has_regen3 = true, 1419 .palmas_regs_info = tps65917_regs_info, 1420 .palmas_matches = tps65917_matches, 1421 .sleep_req_info = tps65917_sleep_req_info, 1422 .smps_register = tps65917_smps_registration, 1423 .ldo_register = tps65917_ldo_registration, 1424}; 1425 1426static void palmas_dt_to_pdata(struct device *dev, 1427 struct device_node *node, 1428 struct palmas_pmic_platform_data *pdata, 1429 struct palmas_pmic_driver_data *ddata) 1430{ 1431 struct device_node *regulators; 1432 u32 prop; 1433 int idx, ret; 1434 1435 regulators = of_get_child_by_name(node, "regulators"); 1436 if (!regulators) { 1437 dev_info(dev, "regulator node not found\n"); 1438 return; 1439 } 1440 1441 ret = of_regulator_match(dev, regulators, ddata->palmas_matches, 1442 ddata->max_reg); 1443 of_node_put(regulators); 1444 if (ret < 0) { 1445 dev_err(dev, "Error parsing regulator init data: %d\n", ret); 1446 return; 1447 } 1448 1449 for (idx = 0; idx < ddata->max_reg; idx++) { 1450 if (!ddata->palmas_matches[idx].init_data || 1451 !ddata->palmas_matches[idx].of_node) 1452 continue; 1453 1454 pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data; 1455 1456 pdata->reg_init[idx] = devm_kzalloc(dev, 1457 sizeof(struct palmas_reg_init), GFP_KERNEL); 1458 1459 pdata->reg_init[idx]->warm_reset = 1460 of_property_read_bool(ddata->palmas_matches[idx].of_node, 1461 "ti,warm-reset"); 1462 1463 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, 1464 "ti,roof-floor", &prop); 1465 /* EINVAL: Property not found */ 1466 if (ret != -EINVAL) { 1467 int econtrol; 1468 1469 /* use default value, when no value is specified */ 1470 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1471 if (!ret) { 1472 switch (prop) { 1473 case 1: 1474 econtrol = PALMAS_EXT_CONTROL_ENABLE1; 1475 break; 1476 case 2: 1477 econtrol = PALMAS_EXT_CONTROL_ENABLE2; 1478 break; 1479 case 3: 1480 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1481 break; 1482 default: 1483 WARN_ON(1); 1484 dev_warn(dev, 1485 "%s: Invalid roof-floor option: %u\n", 1486 palmas_matches[idx].name, prop); 1487 break; 1488 } 1489 } 1490 pdata->reg_init[idx]->roof_floor = econtrol; 1491 } 1492 1493 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, 1494 "ti,mode-sleep", &prop); 1495 if (!ret) 1496 pdata->reg_init[idx]->mode_sleep = prop; 1497 1498 ret = of_property_read_bool(ddata->palmas_matches[idx].of_node, 1499 "ti,smps-range"); 1500 if (ret) 1501 pdata->reg_init[idx]->vsel = 1502 PALMAS_SMPS12_VOLTAGE_RANGE; 1503 1504 if (idx == PALMAS_REG_LDO8) 1505 pdata->enable_ldo8_tracking = of_property_read_bool( 1506 ddata->palmas_matches[idx].of_node, 1507 "ti,enable-ldo8-tracking"); 1508 } 1509 1510 pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); 1511} 1512 1513static const struct of_device_id of_palmas_match_tbl[] = { 1514 { 1515 .compatible = "ti,palmas-pmic", 1516 .data = &palmas_ddata, 1517 }, 1518 { 1519 .compatible = "ti,twl6035-pmic", 1520 .data = &palmas_ddata, 1521 }, 1522 { 1523 .compatible = "ti,twl6036-pmic", 1524 .data = &palmas_ddata, 1525 }, 1526 { 1527 .compatible = "ti,twl6037-pmic", 1528 .data = &palmas_ddata, 1529 }, 1530 { 1531 .compatible = "ti,tps65913-pmic", 1532 .data = &palmas_ddata, 1533 }, 1534 { 1535 .compatible = "ti,tps65914-pmic", 1536 .data = &palmas_ddata, 1537 }, 1538 { 1539 .compatible = "ti,tps80036-pmic", 1540 .data = &palmas_ddata, 1541 }, 1542 { 1543 .compatible = "ti,tps659038-pmic", 1544 .data = &palmas_ddata, 1545 }, 1546 { 1547 .compatible = "ti,tps65917-pmic", 1548 .data = &tps65917_ddata, 1549 }, 1550 { /* end */ } 1551}; 1552 1553static int palmas_regulators_probe(struct platform_device *pdev) 1554{ 1555 struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); 1556 struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); 1557 struct device_node *node = pdev->dev.of_node; 1558 struct palmas_pmic_driver_data *driver_data; 1559 struct regulator_config config = { }; 1560 struct palmas_pmic *pmic; 1561 const char *pdev_name; 1562 const struct of_device_id *match; 1563 int ret = 0; 1564 unsigned int reg; 1565 1566 match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev); 1567 1568 if (!match) 1569 return -ENODATA; 1570 1571 driver_data = (struct palmas_pmic_driver_data *)match->data; 1572 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 1573 if (!pdata) 1574 return -ENOMEM; 1575 1576 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); 1577 if (!pmic) 1578 return -ENOMEM; 1579 1580 if (of_device_is_compatible(node, "ti,tps659038-pmic")) { 1581 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr = 1582 TPS659038_REGEN2_CTRL; 1583 palmas_ddata.has_regen3 = false; 1584 } 1585 1586 pmic->dev = &pdev->dev; 1587 pmic->palmas = palmas; 1588 palmas->pmic = pmic; 1589 platform_set_drvdata(pdev, pmic); 1590 pmic->palmas->pmic_ddata = driver_data; 1591 1592 palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data); 1593 1594 ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®); 1595 if (ret) 1596 return ret; 1597 1598 if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) 1599 pmic->smps123 = 1; 1600 1601 if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN) 1602 pmic->smps457 = 1; 1603 1604 config.regmap = palmas->regmap[REGULATOR_SLAVE]; 1605 config.dev = &pdev->dev; 1606 config.driver_data = pmic; 1607 pdev_name = pdev->name; 1608 1609 ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name, 1610 config); 1611 if (ret) 1612 return ret; 1613 1614 ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name, 1615 config); 1616 1617 return ret; 1618} 1619 1620static struct platform_driver palmas_driver = { 1621 .driver = { 1622 .name = "palmas-pmic", 1623 .of_match_table = of_palmas_match_tbl, 1624 }, 1625 .probe = palmas_regulators_probe, 1626}; 1627 1628static int __init palmas_init(void) 1629{ 1630 return platform_driver_register(&palmas_driver); 1631} 1632subsys_initcall(palmas_init); 1633 1634static void __exit palmas_exit(void) 1635{ 1636 platform_driver_unregister(&palmas_driver); 1637} 1638module_exit(palmas_exit); 1639 1640MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); 1641MODULE_DESCRIPTION("Palmas voltage regulator driver"); 1642MODULE_LICENSE("GPL"); 1643MODULE_ALIAS("platform:palmas-pmic"); 1644MODULE_DEVICE_TABLE(of, of_palmas_match_tbl); 1645