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