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_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 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 438 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 439 int id = rdev_get_id(dev); 440 unsigned int reg; 441 bool rail_enable = true; 442 443 palmas_smps_read(pmic->palmas, ddata->palmas_regs_info[id].ctrl_addr, 444 ®); 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, 468 ddata->palmas_regs_info[id].ctrl_addr, reg); 469 470 /* Switch the enable value to ensure this is used for enable */ 471 pmic->desc[id].enable_val = pmic->current_reg_mode[id]; 472 473 return 0; 474 } 475 476 static unsigned int palmas_get_mode_smps(struct regulator_dev *dev) 477 { 478 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 479 int id = rdev_get_id(dev); 480 unsigned int reg; 481 482 reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 483 484 switch (reg) { 485 case SMPS_CTRL_MODE_ON: 486 return REGULATOR_MODE_NORMAL; 487 case SMPS_CTRL_MODE_ECO: 488 return REGULATOR_MODE_IDLE; 489 case SMPS_CTRL_MODE_PWM: 490 return REGULATOR_MODE_FAST; 491 } 492 493 return 0; 494 } 495 496 static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev, 497 int ramp_delay) 498 { 499 struct palmas_pmic *pmic = rdev_get_drvdata(rdev); 500 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 501 int id = rdev_get_id(rdev); 502 unsigned int reg = 0; 503 unsigned int addr = ddata->palmas_regs_info[id].tstep_addr; 504 int ret; 505 506 /* SMPS3 and SMPS7 do not have tstep_addr setting */ 507 switch (id) { 508 case PALMAS_REG_SMPS3: 509 case PALMAS_REG_SMPS7: 510 return 0; 511 } 512 513 if (ramp_delay <= 0) 514 reg = 0; 515 else if (ramp_delay <= 2500) 516 reg = 3; 517 else if (ramp_delay <= 5000) 518 reg = 2; 519 else 520 reg = 1; 521 522 ret = palmas_smps_write(pmic->palmas, addr, reg); 523 if (ret < 0) { 524 dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret); 525 return ret; 526 } 527 528 pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg]; 529 return ret; 530 } 531 532 static struct regulator_ops palmas_ops_smps = { 533 .is_enabled = regulator_is_enabled_regmap, 534 .enable = regulator_enable_regmap, 535 .disable = regulator_disable_regmap, 536 .set_mode = palmas_set_mode_smps, 537 .get_mode = palmas_get_mode_smps, 538 .get_voltage_sel = regulator_get_voltage_sel_regmap, 539 .set_voltage_sel = regulator_set_voltage_sel_regmap, 540 .list_voltage = regulator_list_voltage_linear_range, 541 .map_voltage = regulator_map_voltage_linear_range, 542 .set_voltage_time_sel = regulator_set_voltage_time_sel, 543 .set_ramp_delay = palmas_smps_set_ramp_delay, 544 }; 545 546 static struct regulator_ops palmas_ops_ext_control_smps = { 547 .set_mode = palmas_set_mode_smps, 548 .get_mode = palmas_get_mode_smps, 549 .get_voltage_sel = regulator_get_voltage_sel_regmap, 550 .set_voltage_sel = regulator_set_voltage_sel_regmap, 551 .list_voltage = regulator_list_voltage_linear_range, 552 .map_voltage = regulator_map_voltage_linear_range, 553 .set_voltage_time_sel = regulator_set_voltage_time_sel, 554 .set_ramp_delay = palmas_smps_set_ramp_delay, 555 }; 556 557 static struct regulator_ops palmas_ops_smps10 = { 558 .is_enabled = regulator_is_enabled_regmap, 559 .enable = regulator_enable_regmap, 560 .disable = regulator_disable_regmap, 561 .get_voltage_sel = regulator_get_voltage_sel_regmap, 562 .set_voltage_sel = regulator_set_voltage_sel_regmap, 563 .list_voltage = regulator_list_voltage_linear, 564 .map_voltage = regulator_map_voltage_linear, 565 .set_bypass = regulator_set_bypass_regmap, 566 .get_bypass = regulator_get_bypass_regmap, 567 }; 568 569 static struct regulator_ops tps65917_ops_smps = { 570 .is_enabled = regulator_is_enabled_regmap, 571 .enable = regulator_enable_regmap, 572 .disable = regulator_disable_regmap, 573 .set_mode = palmas_set_mode_smps, 574 .get_mode = palmas_get_mode_smps, 575 .get_voltage_sel = regulator_get_voltage_sel_regmap, 576 .set_voltage_sel = regulator_set_voltage_sel_regmap, 577 .list_voltage = regulator_list_voltage_linear_range, 578 .map_voltage = regulator_map_voltage_linear_range, 579 .set_voltage_time_sel = regulator_set_voltage_time_sel, 580 }; 581 582 static struct regulator_ops tps65917_ops_ext_control_smps = { 583 .set_mode = palmas_set_mode_smps, 584 .get_mode = palmas_get_mode_smps, 585 .get_voltage_sel = regulator_get_voltage_sel_regmap, 586 .set_voltage_sel = regulator_set_voltage_sel_regmap, 587 .list_voltage = regulator_list_voltage_linear_range, 588 .map_voltage = regulator_map_voltage_linear_range, 589 }; 590 591 static int palmas_is_enabled_ldo(struct regulator_dev *dev) 592 { 593 struct palmas_pmic *pmic = rdev_get_drvdata(dev); 594 struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; 595 int id = rdev_get_id(dev); 596 unsigned int reg; 597 598 palmas_ldo_read(pmic->palmas, 599 ddata->palmas_regs_info[id].ctrl_addr, ®); 600 601 reg &= PALMAS_LDO1_CTRL_STATUS; 602 603 return !!(reg); 604 } 605 606 static struct regulator_ops palmas_ops_ldo = { 607 .is_enabled = palmas_is_enabled_ldo, 608 .enable = regulator_enable_regmap, 609 .disable = regulator_disable_regmap, 610 .get_voltage_sel = regulator_get_voltage_sel_regmap, 611 .set_voltage_sel = regulator_set_voltage_sel_regmap, 612 .list_voltage = regulator_list_voltage_linear, 613 .map_voltage = regulator_map_voltage_linear, 614 }; 615 616 static struct regulator_ops palmas_ops_ext_control_ldo = { 617 .get_voltage_sel = regulator_get_voltage_sel_regmap, 618 .set_voltage_sel = regulator_set_voltage_sel_regmap, 619 .list_voltage = regulator_list_voltage_linear, 620 .map_voltage = regulator_map_voltage_linear, 621 }; 622 623 static struct regulator_ops palmas_ops_extreg = { 624 .is_enabled = regulator_is_enabled_regmap, 625 .enable = regulator_enable_regmap, 626 .disable = regulator_disable_regmap, 627 }; 628 629 static struct regulator_ops palmas_ops_ext_control_extreg = { 630 }; 631 632 static struct regulator_ops tps65917_ops_ldo = { 633 .is_enabled = palmas_is_enabled_ldo, 634 .enable = regulator_enable_regmap, 635 .disable = regulator_disable_regmap, 636 .get_voltage_sel = regulator_get_voltage_sel_regmap, 637 .set_voltage_sel = regulator_set_voltage_sel_regmap, 638 .list_voltage = regulator_list_voltage_linear, 639 .map_voltage = regulator_map_voltage_linear, 640 .set_voltage_time_sel = regulator_set_voltage_time_sel, 641 }; 642 643 static int palmas_regulator_config_external(struct palmas *palmas, int id, 644 struct palmas_reg_init *reg_init) 645 { 646 int sleep_id = palmas_regs_info[id].sleep_id; 647 int ret; 648 649 ret = palmas_ext_control_req_config(palmas, 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 unsigned int addr; 669 int ret; 670 671 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 672 673 addr = ddata->palmas_regs_info[id].ctrl_addr; 674 675 ret = palmas_smps_read(palmas, addr, ®); 676 if (ret) 677 return ret; 678 679 switch (id) { 680 case PALMAS_REG_SMPS10_OUT1: 681 case PALMAS_REG_SMPS10_OUT2: 682 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; 683 if (reg_init->mode_sleep) 684 reg |= reg_init->mode_sleep << 685 PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; 686 break; 687 default: 688 if (reg_init->warm_reset) 689 reg |= PALMAS_SMPS12_CTRL_WR_S; 690 else 691 reg &= ~PALMAS_SMPS12_CTRL_WR_S; 692 693 if (reg_init->roof_floor) 694 reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 695 else 696 reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 697 698 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK; 699 if (reg_init->mode_sleep) 700 reg |= reg_init->mode_sleep << 701 PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; 702 } 703 704 ret = palmas_smps_write(palmas, addr, reg); 705 if (ret) 706 return ret; 707 708 if (ddata->palmas_regs_info[id].vsel_addr && reg_init->vsel) { 709 addr = ddata->palmas_regs_info[id].vsel_addr; 710 711 reg = reg_init->vsel; 712 713 ret = palmas_smps_write(palmas, addr, reg); 714 if (ret) 715 return ret; 716 } 717 718 if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) && 719 (id != PALMAS_REG_SMPS10_OUT2)) { 720 /* Enable externally controlled regulator */ 721 addr = ddata->palmas_regs_info[id].ctrl_addr; 722 ret = palmas_smps_read(palmas, addr, ®); 723 if (ret < 0) 724 return ret; 725 726 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) { 727 reg |= SMPS_CTRL_MODE_ON; 728 ret = palmas_smps_write(palmas, addr, reg); 729 if (ret < 0) 730 return ret; 731 } 732 return palmas_regulator_config_external(palmas, id, reg_init); 733 } 734 return 0; 735 } 736 737 static int palmas_ldo_init(struct palmas *palmas, int id, 738 struct palmas_reg_init *reg_init) 739 { 740 unsigned int reg; 741 unsigned int addr; 742 int ret; 743 744 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 745 746 addr = ddata->palmas_regs_info[id].ctrl_addr; 747 748 ret = palmas_ldo_read(palmas, addr, ®); 749 if (ret) 750 return ret; 751 752 if (reg_init->warm_reset) 753 reg |= PALMAS_LDO1_CTRL_WR_S; 754 else 755 reg &= ~PALMAS_LDO1_CTRL_WR_S; 756 757 if (reg_init->mode_sleep) 758 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP; 759 else 760 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP; 761 762 ret = palmas_ldo_write(palmas, addr, reg); 763 if (ret) 764 return ret; 765 766 if (reg_init->roof_floor) { 767 /* Enable externally controlled regulator */ 768 addr = ddata->palmas_regs_info[id].ctrl_addr; 769 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE, 770 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE, 771 PALMAS_LDO1_CTRL_MODE_ACTIVE); 772 if (ret < 0) { 773 dev_err(palmas->dev, 774 "LDO Register 0x%02x update failed %d\n", 775 addr, ret); 776 return ret; 777 } 778 return palmas_regulator_config_external(palmas, id, reg_init); 779 } 780 return 0; 781 } 782 783 static int palmas_extreg_init(struct palmas *palmas, int id, 784 struct palmas_reg_init *reg_init) 785 { 786 unsigned int addr; 787 int ret; 788 unsigned int val = 0; 789 790 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 791 792 addr = ddata->palmas_regs_info[id].ctrl_addr; 793 794 if (reg_init->mode_sleep) 795 val = PALMAS_REGEN1_CTRL_MODE_SLEEP; 796 797 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 798 addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); 799 if (ret < 0) { 800 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", 801 addr, ret); 802 return ret; 803 } 804 805 if (reg_init->roof_floor) { 806 /* Enable externally controlled regulator */ 807 addr = ddata->palmas_regs_info[id].ctrl_addr; 808 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 809 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE, 810 PALMAS_REGEN1_CTRL_MODE_ACTIVE); 811 if (ret < 0) { 812 dev_err(palmas->dev, 813 "Resource Register 0x%02x update failed %d\n", 814 addr, ret); 815 return ret; 816 } 817 return palmas_regulator_config_external(palmas, id, reg_init); 818 } 819 return 0; 820 } 821 822 static void palmas_enable_ldo8_track(struct palmas *palmas) 823 { 824 unsigned int reg; 825 unsigned int addr; 826 int ret; 827 828 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 829 830 addr = ddata->palmas_regs_info[PALMAS_REG_LDO8].ctrl_addr; 831 832 ret = palmas_ldo_read(palmas, addr, ®); 833 if (ret) { 834 dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); 835 return; 836 } 837 838 reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; 839 ret = palmas_ldo_write(palmas, addr, reg); 840 if (ret < 0) { 841 dev_err(palmas->dev, "Error in enabling tracking mode\n"); 842 return; 843 } 844 /* 845 * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 846 * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, 847 * and can be set from 0.45 to 1.65 V. 848 */ 849 addr = ddata->palmas_regs_info[PALMAS_REG_LDO8].vsel_addr; 850 ret = palmas_ldo_read(palmas, addr, ®); 851 if (ret) { 852 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); 853 return; 854 } 855 856 reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; 857 ret = palmas_ldo_write(palmas, addr, reg); 858 if (ret < 0) 859 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); 860 861 return; 862 } 863 864 static int palmas_ldo_registration(struct palmas_pmic *pmic, 865 struct palmas_pmic_driver_data *ddata, 866 struct palmas_pmic_platform_data *pdata, 867 const char *pdev_name, 868 struct regulator_config config) 869 { 870 int id, ret; 871 struct regulator_dev *rdev; 872 struct palmas_reg_init *reg_init; 873 874 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 875 if (pdata && pdata->reg_init[id]) 876 reg_init = pdata->reg_init[id]; 877 else 878 reg_init = NULL; 879 880 /* Miss out regulators which are not available due 881 * to alternate functions. 882 */ 883 884 /* Register the regulators */ 885 pmic->desc[id].name = ddata->palmas_regs_info[id].name; 886 pmic->desc[id].id = id; 887 pmic->desc[id].type = REGULATOR_VOLTAGE; 888 pmic->desc[id].owner = THIS_MODULE; 889 890 if (id < PALMAS_REG_REGEN1) { 891 pmic->desc[id].n_voltages = PALMAS_LDO_NUM_VOLTAGES; 892 if (reg_init && reg_init->roof_floor) 893 pmic->desc[id].ops = 894 &palmas_ops_ext_control_ldo; 895 else 896 pmic->desc[id].ops = &palmas_ops_ldo; 897 pmic->desc[id].min_uV = 900000; 898 pmic->desc[id].uV_step = 50000; 899 pmic->desc[id].linear_min_sel = 1; 900 pmic->desc[id].enable_time = 500; 901 pmic->desc[id].vsel_reg = 902 PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 903 ddata->palmas_regs_info[id].vsel_addr); 904 pmic->desc[id].vsel_mask = 905 PALMAS_LDO1_VOLTAGE_VSEL_MASK; 906 pmic->desc[id].enable_reg = 907 PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 908 ddata->palmas_regs_info[id].ctrl_addr); 909 pmic->desc[id].enable_mask = 910 PALMAS_LDO1_CTRL_MODE_ACTIVE; 911 912 /* Check if LDO8 is in tracking mode or not */ 913 if (pdata && (id == PALMAS_REG_LDO8) && 914 pdata->enable_ldo8_tracking) { 915 palmas_enable_ldo8_track(pmic->palmas); 916 pmic->desc[id].min_uV = 450000; 917 pmic->desc[id].uV_step = 25000; 918 } 919 920 /* LOD6 in vibrator mode will have enable time 2000us */ 921 if (pdata && pdata->ldo6_vibrator && 922 (id == PALMAS_REG_LDO6)) 923 pmic->desc[id].enable_time = 2000; 924 } else { 925 pmic->desc[id].n_voltages = 1; 926 if (reg_init && reg_init->roof_floor) 927 pmic->desc[id].ops = 928 &palmas_ops_ext_control_extreg; 929 else 930 pmic->desc[id].ops = &palmas_ops_extreg; 931 pmic->desc[id].enable_reg = 932 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 933 ddata->palmas_regs_info[id].ctrl_addr); 934 pmic->desc[id].enable_mask = 935 PALMAS_REGEN1_CTRL_MODE_ACTIVE; 936 } 937 938 if (pdata) 939 config.init_data = pdata->reg_data[id]; 940 else 941 config.init_data = NULL; 942 943 pmic->desc[id].supply_name = ddata->palmas_regs_info[id].sname; 944 config.of_node = ddata->palmas_matches[id].of_node; 945 946 rdev = devm_regulator_register(pmic->dev, &pmic->desc[id], 947 &config); 948 if (IS_ERR(rdev)) { 949 dev_err(pmic->dev, 950 "failed to register %s regulator\n", 951 pdev_name); 952 return PTR_ERR(rdev); 953 } 954 955 /* Save regulator for cleanup */ 956 pmic->rdev[id] = rdev; 957 958 /* Initialise sleep/init values from platform data */ 959 if (pdata) { 960 reg_init = pdata->reg_init[id]; 961 if (reg_init) { 962 if (id <= ddata->ldo_end) 963 ret = palmas_ldo_init(pmic->palmas, id, 964 reg_init); 965 else 966 ret = palmas_extreg_init(pmic->palmas, 967 id, reg_init); 968 if (ret) 969 return ret; 970 } 971 } 972 } 973 974 return 0; 975 } 976 977 static int tps65917_ldo_registration(struct palmas_pmic *pmic, 978 struct palmas_pmic_driver_data *ddata, 979 struct palmas_pmic_platform_data *pdata, 980 const char *pdev_name, 981 struct regulator_config config) 982 { 983 int id, ret; 984 struct regulator_dev *rdev; 985 struct palmas_reg_init *reg_init; 986 987 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 988 if (pdata && pdata->reg_init[id]) 989 reg_init = pdata->reg_init[id]; 990 else 991 reg_init = NULL; 992 993 /* Miss out regulators which are not available due 994 * to alternate functions. 995 */ 996 997 /* Register the regulators */ 998 pmic->desc[id].name = ddata->palmas_regs_info[id].name; 999 pmic->desc[id].id = id; 1000 pmic->desc[id].type = REGULATOR_VOLTAGE; 1001 pmic->desc[id].owner = THIS_MODULE; 1002 1003 if (id < TPS65917_REG_REGEN1) { 1004 pmic->desc[id].n_voltages = PALMAS_LDO_NUM_VOLTAGES; 1005 if (reg_init && reg_init->roof_floor) 1006 pmic->desc[id].ops = 1007 &palmas_ops_ext_control_ldo; 1008 else 1009 pmic->desc[id].ops = &tps65917_ops_ldo; 1010 pmic->desc[id].min_uV = 900000; 1011 pmic->desc[id].uV_step = 50000; 1012 pmic->desc[id].linear_min_sel = 1; 1013 pmic->desc[id].enable_time = 500; 1014 pmic->desc[id].vsel_reg = 1015 PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1016 ddata->palmas_regs_info[id].vsel_addr); 1017 pmic->desc[id].vsel_mask = 1018 PALMAS_LDO1_VOLTAGE_VSEL_MASK; 1019 pmic->desc[id].enable_reg = 1020 PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1021 ddata->palmas_regs_info[id].ctrl_addr); 1022 pmic->desc[id].enable_mask = 1023 PALMAS_LDO1_CTRL_MODE_ACTIVE; 1024 /* 1025 * To be confirmed. Discussion on going with PMIC Team. 1026 * It is of the order of ~60mV/uS. 1027 */ 1028 pmic->desc[id].ramp_delay = 2500; 1029 } else { 1030 pmic->desc[id].n_voltages = 1; 1031 if (reg_init && reg_init->roof_floor) 1032 pmic->desc[id].ops = 1033 &palmas_ops_ext_control_extreg; 1034 else 1035 pmic->desc[id].ops = &palmas_ops_extreg; 1036 pmic->desc[id].enable_reg = 1037 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 1038 ddata->palmas_regs_info[id].ctrl_addr); 1039 pmic->desc[id].enable_mask = 1040 PALMAS_REGEN1_CTRL_MODE_ACTIVE; 1041 } 1042 1043 if (pdata) 1044 config.init_data = pdata->reg_data[id]; 1045 else 1046 config.init_data = NULL; 1047 1048 pmic->desc[id].supply_name = ddata->palmas_regs_info[id].sname; 1049 config.of_node = ddata->palmas_matches[id].of_node; 1050 1051 rdev = devm_regulator_register(pmic->dev, &pmic->desc[id], 1052 &config); 1053 if (IS_ERR(rdev)) { 1054 dev_err(pmic->dev, 1055 "failed to register %s regulator\n", 1056 pdev_name); 1057 return PTR_ERR(rdev); 1058 } 1059 1060 /* Save regulator for cleanup */ 1061 pmic->rdev[id] = rdev; 1062 1063 /* Initialise sleep/init values from platform data */ 1064 if (pdata) { 1065 reg_init = pdata->reg_init[id]; 1066 if (reg_init) { 1067 if (id < TPS65917_REG_REGEN1) 1068 ret = palmas_ldo_init(pmic->palmas, 1069 id, reg_init); 1070 else 1071 ret = palmas_extreg_init(pmic->palmas, 1072 id, reg_init); 1073 if (ret) 1074 return ret; 1075 } 1076 } 1077 } 1078 1079 return 0; 1080 } 1081 1082 static int palmas_smps_registration(struct palmas_pmic *pmic, 1083 struct palmas_pmic_driver_data *ddata, 1084 struct palmas_pmic_platform_data *pdata, 1085 const char *pdev_name, 1086 struct regulator_config config) 1087 { 1088 int id, ret; 1089 unsigned int addr, reg; 1090 struct regulator_dev *rdev; 1091 struct palmas_reg_init *reg_init; 1092 1093 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1094 bool ramp_delay_support = false; 1095 1096 /* 1097 * Miss out regulators which are not available due 1098 * to slaving configurations. 1099 */ 1100 switch (id) { 1101 case PALMAS_REG_SMPS12: 1102 case PALMAS_REG_SMPS3: 1103 if (pmic->smps123) 1104 continue; 1105 if (id == PALMAS_REG_SMPS12) 1106 ramp_delay_support = true; 1107 break; 1108 case PALMAS_REG_SMPS123: 1109 if (!pmic->smps123) 1110 continue; 1111 ramp_delay_support = true; 1112 break; 1113 case PALMAS_REG_SMPS45: 1114 case PALMAS_REG_SMPS7: 1115 if (pmic->smps457) 1116 continue; 1117 if (id == PALMAS_REG_SMPS45) 1118 ramp_delay_support = true; 1119 break; 1120 case PALMAS_REG_SMPS457: 1121 if (!pmic->smps457) 1122 continue; 1123 ramp_delay_support = true; 1124 break; 1125 case PALMAS_REG_SMPS10_OUT1: 1126 case PALMAS_REG_SMPS10_OUT2: 1127 if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST)) 1128 continue; 1129 } 1130 1131 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) 1132 ramp_delay_support = true; 1133 1134 if (ramp_delay_support) { 1135 addr = ddata->palmas_regs_info[id].tstep_addr; 1136 ret = palmas_smps_read(pmic->palmas, addr, ®); 1137 if (ret < 0) { 1138 dev_err(pmic->dev, 1139 "reading TSTEP reg failed: %d\n", ret); 1140 return ret; 1141 } 1142 pmic->desc[id].ramp_delay = 1143 palmas_smps_ramp_delay[reg & 0x3]; 1144 pmic->ramp_delay[id] = pmic->desc[id].ramp_delay; 1145 } 1146 1147 /* Initialise sleep/init values from platform data */ 1148 if (pdata && pdata->reg_init[id]) { 1149 reg_init = pdata->reg_init[id]; 1150 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1151 if (ret) 1152 return ret; 1153 } else { 1154 reg_init = NULL; 1155 } 1156 1157 /* Register the regulators */ 1158 pmic->desc[id].name = ddata->palmas_regs_info[id].name; 1159 pmic->desc[id].id = id; 1160 1161 switch (id) { 1162 case PALMAS_REG_SMPS10_OUT1: 1163 case PALMAS_REG_SMPS10_OUT2: 1164 pmic->desc[id].n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; 1165 pmic->desc[id].ops = &palmas_ops_smps10; 1166 pmic->desc[id].vsel_reg = 1167 PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1168 PALMAS_SMPS10_CTRL); 1169 pmic->desc[id].vsel_mask = SMPS10_VSEL; 1170 pmic->desc[id].enable_reg = 1171 PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1172 PALMAS_SMPS10_CTRL); 1173 if (id == PALMAS_REG_SMPS10_OUT1) 1174 pmic->desc[id].enable_mask = SMPS10_SWITCH_EN; 1175 else 1176 pmic->desc[id].enable_mask = SMPS10_BOOST_EN; 1177 pmic->desc[id].bypass_reg = 1178 PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1179 PALMAS_SMPS10_CTRL); 1180 pmic->desc[id].bypass_mask = SMPS10_BYPASS_EN; 1181 pmic->desc[id].min_uV = 3750000; 1182 pmic->desc[id].uV_step = 1250000; 1183 break; 1184 default: 1185 /* 1186 * Read and store the RANGE bit for later use 1187 * This must be done before regulator is probed, 1188 * otherwise we error in probe with unsupportable 1189 * ranges. Read the current smps mode for later use. 1190 */ 1191 addr = palmas_regs_info[id].vsel_addr; 1192 pmic->desc[id].n_linear_ranges = 3; 1193 1194 ret = palmas_smps_read(pmic->palmas, addr, ®); 1195 if (ret) 1196 return ret; 1197 if (reg & PALMAS_SMPS12_VOLTAGE_RANGE) 1198 pmic->range[id] = 1; 1199 if (pmic->range[id]) 1200 pmic->desc[id].linear_ranges = smps_high_ranges; 1201 else 1202 pmic->desc[id].linear_ranges = smps_low_ranges; 1203 1204 if (reg_init && reg_init->roof_floor) 1205 pmic->desc[id].ops = 1206 &palmas_ops_ext_control_smps; 1207 else 1208 pmic->desc[id].ops = &palmas_ops_smps; 1209 pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1210 pmic->desc[id].vsel_reg = 1211 PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1212 palmas_regs_info[id].vsel_addr); 1213 pmic->desc[id].vsel_mask = 1214 PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1215 1216 /* Read the smps mode for later use. */ 1217 addr = palmas_regs_info[id].ctrl_addr; 1218 ret = palmas_smps_read(pmic->palmas, addr, ®); 1219 if (ret) 1220 return ret; 1221 pmic->current_reg_mode[id] = reg & 1222 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1223 1224 pmic->desc[id].enable_reg = 1225 PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1226 palmas_regs_info[id].ctrl_addr); 1227 pmic->desc[id].enable_mask = 1228 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1229 /* set_mode overrides this value */ 1230 pmic->desc[id].enable_val = SMPS_CTRL_MODE_ON; 1231 } 1232 1233 pmic->desc[id].type = REGULATOR_VOLTAGE; 1234 pmic->desc[id].owner = THIS_MODULE; 1235 1236 if (pdata) 1237 config.init_data = pdata->reg_data[id]; 1238 else 1239 config.init_data = NULL; 1240 1241 pmic->desc[id].supply_name = ddata->palmas_regs_info[id].sname; 1242 config.of_node = ddata->palmas_matches[id].of_node; 1243 1244 rdev = devm_regulator_register(pmic->dev, &pmic->desc[id], 1245 &config); 1246 if (IS_ERR(rdev)) { 1247 dev_err(pmic->dev, 1248 "failed to register %s regulator\n", 1249 pdev_name); 1250 return PTR_ERR(rdev); 1251 } 1252 1253 /* Save regulator for cleanup */ 1254 pmic->rdev[id] = rdev; 1255 } 1256 1257 return 0; 1258 } 1259 1260 static int tps65917_smps_registration(struct palmas_pmic *pmic, 1261 struct palmas_pmic_driver_data *ddata, 1262 struct palmas_pmic_platform_data *pdata, 1263 const char *pdev_name, 1264 struct regulator_config config) 1265 { 1266 int id, ret; 1267 unsigned int addr, reg; 1268 struct regulator_dev *rdev; 1269 struct palmas_reg_init *reg_init; 1270 1271 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1272 /* 1273 * Miss out regulators which are not available due 1274 * to slaving configurations. 1275 */ 1276 pmic->desc[id].n_linear_ranges = 3; 1277 if ((id == TPS65917_REG_SMPS2) && pmic->smps12) 1278 continue; 1279 1280 /* Initialise sleep/init values from platform data */ 1281 if (pdata && pdata->reg_init[id]) { 1282 reg_init = pdata->reg_init[id]; 1283 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1284 if (ret) 1285 return ret; 1286 } else { 1287 reg_init = NULL; 1288 } 1289 1290 /* Register the regulators */ 1291 pmic->desc[id].name = ddata->palmas_regs_info[id].name; 1292 pmic->desc[id].id = id; 1293 1294 /* 1295 * Read and store the RANGE bit for later use 1296 * This must be done before regulator is probed, 1297 * otherwise we error in probe with unsupportable 1298 * ranges. Read the current smps mode for later use. 1299 */ 1300 addr = ddata->palmas_regs_info[id].vsel_addr; 1301 1302 ret = palmas_smps_read(pmic->palmas, addr, ®); 1303 if (ret) 1304 return ret; 1305 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE) 1306 pmic->range[id] = 1; 1307 1308 if (pmic->range[id]) 1309 pmic->desc[id].linear_ranges = smps_high_ranges; 1310 else 1311 pmic->desc[id].linear_ranges = smps_low_ranges; 1312 1313 1314 if (reg_init && reg_init->roof_floor) 1315 pmic->desc[id].ops = 1316 &tps65917_ops_ext_control_smps; 1317 else 1318 pmic->desc[id].ops = &tps65917_ops_smps; 1319 pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1320 pmic->desc[id].vsel_reg = 1321 PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1322 tps65917_regs_info[id].vsel_addr); 1323 pmic->desc[id].vsel_mask = 1324 PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1325 1326 pmic->desc[id].ramp_delay = 2500; 1327 1328 /* Read the smps mode for later use. */ 1329 addr = ddata->palmas_regs_info[id].ctrl_addr; 1330 ret = palmas_smps_read(pmic->palmas, addr, ®); 1331 if (ret) 1332 return ret; 1333 pmic->current_reg_mode[id] = reg & 1334 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1335 1336 pmic->desc[id].type = REGULATOR_VOLTAGE; 1337 pmic->desc[id].owner = THIS_MODULE; 1338 1339 if (pdata) 1340 config.init_data = pdata->reg_data[id]; 1341 else 1342 config.init_data = NULL; 1343 1344 pmic->desc[id].supply_name = ddata->palmas_regs_info[id].sname; 1345 config.of_node = ddata->palmas_matches[id].of_node; 1346 1347 rdev = devm_regulator_register(pmic->dev, &pmic->desc[id], 1348 &config); 1349 if (IS_ERR(rdev)) { 1350 dev_err(pmic->dev, 1351 "failed to register %s regulator\n", 1352 pdev_name); 1353 return PTR_ERR(rdev); 1354 } 1355 1356 /* Save regulator for cleanup */ 1357 pmic->rdev[id] = rdev; 1358 } 1359 1360 return 0; 1361 } 1362 1363 static struct of_regulator_match palmas_matches[] = { 1364 { .name = "smps12", }, 1365 { .name = "smps123", }, 1366 { .name = "smps3", }, 1367 { .name = "smps45", }, 1368 { .name = "smps457", }, 1369 { .name = "smps6", }, 1370 { .name = "smps7", }, 1371 { .name = "smps8", }, 1372 { .name = "smps9", }, 1373 { .name = "smps10_out2", }, 1374 { .name = "smps10_out1", }, 1375 { .name = "ldo1", }, 1376 { .name = "ldo2", }, 1377 { .name = "ldo3", }, 1378 { .name = "ldo4", }, 1379 { .name = "ldo5", }, 1380 { .name = "ldo6", }, 1381 { .name = "ldo7", }, 1382 { .name = "ldo8", }, 1383 { .name = "ldo9", }, 1384 { .name = "ldoln", }, 1385 { .name = "ldousb", }, 1386 { .name = "regen1", }, 1387 { .name = "regen2", }, 1388 { .name = "regen3", }, 1389 { .name = "sysen1", }, 1390 { .name = "sysen2", }, 1391 }; 1392 1393 static struct of_regulator_match tps65917_matches[] = { 1394 { .name = "smps1", }, 1395 { .name = "smps2", }, 1396 { .name = "smps3", }, 1397 { .name = "smps4", }, 1398 { .name = "smps5", }, 1399 { .name = "ldo1", }, 1400 { .name = "ldo2", }, 1401 { .name = "ldo3", }, 1402 { .name = "ldo4", }, 1403 { .name = "ldo5", }, 1404 { .name = "regen1", }, 1405 { .name = "regen2", }, 1406 { .name = "regen3", }, 1407 { .name = "sysen1", }, 1408 { .name = "sysen2", }, 1409 }; 1410 1411 static struct palmas_pmic_driver_data palmas_ddata = { 1412 .smps_start = PALMAS_REG_SMPS12, 1413 .smps_end = PALMAS_REG_SMPS10_OUT1, 1414 .ldo_begin = PALMAS_REG_LDO1, 1415 .ldo_end = PALMAS_REG_LDOUSB, 1416 .max_reg = PALMAS_NUM_REGS, 1417 .palmas_regs_info = palmas_regs_info, 1418 .palmas_matches = palmas_matches, 1419 .sleep_req_info = palma_sleep_req_info, 1420 .smps_register = palmas_smps_registration, 1421 .ldo_register = palmas_ldo_registration, 1422 }; 1423 1424 static struct palmas_pmic_driver_data tps65917_ddata = { 1425 .smps_start = TPS65917_REG_SMPS1, 1426 .smps_end = TPS65917_REG_SMPS5, 1427 .ldo_begin = TPS65917_REG_LDO1, 1428 .ldo_end = TPS65917_REG_LDO5, 1429 .max_reg = TPS65917_NUM_REGS, 1430 .palmas_regs_info = tps65917_regs_info, 1431 .palmas_matches = tps65917_matches, 1432 .sleep_req_info = tps65917_sleep_req_info, 1433 .smps_register = tps65917_smps_registration, 1434 .ldo_register = tps65917_ldo_registration, 1435 }; 1436 1437 static void palmas_dt_to_pdata(struct device *dev, 1438 struct device_node *node, 1439 struct palmas_pmic_platform_data *pdata, 1440 struct palmas_pmic_driver_data *ddata) 1441 { 1442 struct device_node *regulators; 1443 u32 prop; 1444 int idx, ret; 1445 1446 node = of_node_get(node); 1447 regulators = of_get_child_by_name(node, "regulators"); 1448 if (!regulators) { 1449 dev_info(dev, "regulator node not found\n"); 1450 return; 1451 } 1452 1453 ret = of_regulator_match(dev, regulators, ddata->palmas_matches, 1454 ddata->max_reg); 1455 of_node_put(regulators); 1456 if (ret < 0) { 1457 dev_err(dev, "Error parsing regulator init data: %d\n", ret); 1458 return; 1459 } 1460 1461 for (idx = 0; idx < ddata->max_reg; idx++) { 1462 if (!ddata->palmas_matches[idx].init_data || 1463 !ddata->palmas_matches[idx].of_node) 1464 continue; 1465 1466 pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data; 1467 1468 pdata->reg_init[idx] = devm_kzalloc(dev, 1469 sizeof(struct palmas_reg_init), GFP_KERNEL); 1470 1471 pdata->reg_init[idx]->warm_reset = 1472 of_property_read_bool(ddata->palmas_matches[idx].of_node, 1473 "ti,warm-reset"); 1474 1475 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, 1476 "ti,roof-floor", &prop); 1477 /* EINVAL: Property not found */ 1478 if (ret != -EINVAL) { 1479 int econtrol; 1480 1481 /* use default value, when no value is specified */ 1482 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1483 if (!ret) { 1484 switch (prop) { 1485 case 1: 1486 econtrol = PALMAS_EXT_CONTROL_ENABLE1; 1487 break; 1488 case 2: 1489 econtrol = PALMAS_EXT_CONTROL_ENABLE2; 1490 break; 1491 case 3: 1492 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1493 break; 1494 default: 1495 WARN_ON(1); 1496 dev_warn(dev, 1497 "%s: Invalid roof-floor option: %u\n", 1498 palmas_matches[idx].name, prop); 1499 break; 1500 } 1501 } 1502 pdata->reg_init[idx]->roof_floor = econtrol; 1503 } 1504 1505 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, 1506 "ti,mode-sleep", &prop); 1507 if (!ret) 1508 pdata->reg_init[idx]->mode_sleep = prop; 1509 1510 ret = of_property_read_bool(ddata->palmas_matches[idx].of_node, 1511 "ti,smps-range"); 1512 if (ret) 1513 pdata->reg_init[idx]->vsel = 1514 PALMAS_SMPS12_VOLTAGE_RANGE; 1515 1516 if (idx == PALMAS_REG_LDO8) 1517 pdata->enable_ldo8_tracking = of_property_read_bool( 1518 ddata->palmas_matches[idx].of_node, 1519 "ti,enable-ldo8-tracking"); 1520 } 1521 1522 pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); 1523 } 1524 1525 static struct of_device_id of_palmas_match_tbl[] = { 1526 { 1527 .compatible = "ti,palmas-pmic", 1528 .data = &palmas_ddata, 1529 }, 1530 { 1531 .compatible = "ti,twl6035-pmic", 1532 .data = &palmas_ddata, 1533 }, 1534 { 1535 .compatible = "ti,twl6036-pmic", 1536 .data = &palmas_ddata, 1537 }, 1538 { 1539 .compatible = "ti,twl6037-pmic", 1540 .data = &palmas_ddata, 1541 }, 1542 { 1543 .compatible = "ti,tps65913-pmic", 1544 .data = &palmas_ddata, 1545 }, 1546 { 1547 .compatible = "ti,tps65914-pmic", 1548 .data = &palmas_ddata, 1549 }, 1550 { 1551 .compatible = "ti,tps80036-pmic", 1552 .data = &palmas_ddata, 1553 }, 1554 { 1555 .compatible = "ti,tps659038-pmic", 1556 .data = &palmas_ddata, 1557 }, 1558 { 1559 .compatible = "ti,tps65917-pmic", 1560 .data = &tps65917_ddata, 1561 }, 1562 { /* end */ } 1563 }; 1564 1565 static int palmas_regulators_probe(struct platform_device *pdev) 1566 { 1567 struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); 1568 struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); 1569 struct device_node *node = pdev->dev.of_node; 1570 struct palmas_pmic_driver_data *driver_data; 1571 struct regulator_config config = { }; 1572 struct palmas_pmic *pmic; 1573 const char *pdev_name; 1574 const struct of_device_id *match; 1575 int ret = 0; 1576 unsigned int reg; 1577 1578 match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev); 1579 1580 if (!match) 1581 return -ENODATA; 1582 1583 driver_data = (struct palmas_pmic_driver_data *)match->data; 1584 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 1585 if (!pdata) 1586 return -ENOMEM; 1587 1588 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); 1589 if (!pmic) 1590 return -ENOMEM; 1591 1592 pmic->dev = &pdev->dev; 1593 pmic->palmas = palmas; 1594 palmas->pmic = pmic; 1595 platform_set_drvdata(pdev, pmic); 1596 pmic->palmas->pmic_ddata = driver_data; 1597 1598 palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data); 1599 1600 ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®); 1601 if (ret) 1602 return ret; 1603 1604 if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) 1605 pmic->smps123 = 1; 1606 1607 if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN) 1608 pmic->smps457 = 1; 1609 1610 config.regmap = palmas->regmap[REGULATOR_SLAVE]; 1611 config.dev = &pdev->dev; 1612 config.driver_data = pmic; 1613 pdev_name = pdev->name; 1614 1615 ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name, 1616 config); 1617 if (ret) 1618 return ret; 1619 1620 ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name, 1621 config); 1622 1623 return ret; 1624 } 1625 1626 static struct platform_driver palmas_driver = { 1627 .driver = { 1628 .name = "palmas-pmic", 1629 .of_match_table = of_palmas_match_tbl, 1630 .owner = THIS_MODULE, 1631 }, 1632 .probe = palmas_regulators_probe, 1633 }; 1634 1635 static int __init palmas_init(void) 1636 { 1637 return platform_driver_register(&palmas_driver); 1638 } 1639 subsys_initcall(palmas_init); 1640 1641 static void __exit palmas_exit(void) 1642 { 1643 platform_driver_unregister(&palmas_driver); 1644 } 1645 module_exit(palmas_exit); 1646 1647 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); 1648 MODULE_DESCRIPTION("Palmas voltage regulator driver"); 1649 MODULE_LICENSE("GPL"); 1650 MODULE_ALIAS("platform:palmas-pmic"); 1651 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl); 1652