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_ldo9 = { 616 .is_enabled = palmas_is_enabled_ldo, 617 .enable = regulator_enable_regmap, 618 .disable = regulator_disable_regmap, 619 .get_voltage_sel = regulator_get_voltage_sel_regmap, 620 .set_voltage_sel = regulator_set_voltage_sel_regmap, 621 .list_voltage = regulator_list_voltage_linear, 622 .map_voltage = regulator_map_voltage_linear, 623 .set_bypass = regulator_set_bypass_regmap, 624 .get_bypass = regulator_get_bypass_regmap, 625 }; 626 627 static struct regulator_ops palmas_ops_ext_control_ldo = { 628 .get_voltage_sel = regulator_get_voltage_sel_regmap, 629 .set_voltage_sel = regulator_set_voltage_sel_regmap, 630 .list_voltage = regulator_list_voltage_linear, 631 .map_voltage = regulator_map_voltage_linear, 632 }; 633 634 static struct regulator_ops palmas_ops_extreg = { 635 .is_enabled = regulator_is_enabled_regmap, 636 .enable = regulator_enable_regmap, 637 .disable = regulator_disable_regmap, 638 }; 639 640 static struct regulator_ops palmas_ops_ext_control_extreg = { 641 }; 642 643 static struct regulator_ops tps65917_ops_ldo = { 644 .is_enabled = palmas_is_enabled_ldo, 645 .enable = regulator_enable_regmap, 646 .disable = regulator_disable_regmap, 647 .get_voltage_sel = regulator_get_voltage_sel_regmap, 648 .set_voltage_sel = regulator_set_voltage_sel_regmap, 649 .list_voltage = regulator_list_voltage_linear, 650 .map_voltage = regulator_map_voltage_linear, 651 .set_voltage_time_sel = regulator_set_voltage_time_sel, 652 }; 653 654 static struct regulator_ops tps65917_ops_ldo_1_2 = { 655 .is_enabled = palmas_is_enabled_ldo, 656 .enable = regulator_enable_regmap, 657 .disable = regulator_disable_regmap, 658 .get_voltage_sel = regulator_get_voltage_sel_regmap, 659 .set_voltage_sel = regulator_set_voltage_sel_regmap, 660 .list_voltage = regulator_list_voltage_linear, 661 .map_voltage = regulator_map_voltage_linear, 662 .set_voltage_time_sel = regulator_set_voltage_time_sel, 663 .set_bypass = regulator_set_bypass_regmap, 664 .get_bypass = regulator_get_bypass_regmap, 665 }; 666 667 static int palmas_regulator_config_external(struct palmas *palmas, int id, 668 struct palmas_reg_init *reg_init) 669 { 670 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 671 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 672 int ret; 673 674 ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id, 675 reg_init->roof_floor, true); 676 if (ret < 0) 677 dev_err(palmas->dev, 678 "Ext control config for regulator %d failed %d\n", 679 id, ret); 680 return ret; 681 } 682 683 /* 684 * setup the hardware based sleep configuration of the SMPS/LDO regulators 685 * from the platform data. This is different to the software based control 686 * supported by the regulator framework as it is controlled by toggling 687 * pins on the PMIC such as PREQ, SYSEN, ... 688 */ 689 static int palmas_smps_init(struct palmas *palmas, int id, 690 struct palmas_reg_init *reg_init) 691 { 692 unsigned int reg; 693 int ret; 694 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 695 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 696 unsigned int addr = rinfo->ctrl_addr; 697 698 ret = palmas_smps_read(palmas, addr, ®); 699 if (ret) 700 return ret; 701 702 switch (id) { 703 case PALMAS_REG_SMPS10_OUT1: 704 case PALMAS_REG_SMPS10_OUT2: 705 reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; 706 if (reg_init->mode_sleep) 707 reg |= reg_init->mode_sleep << 708 PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; 709 break; 710 default: 711 if (reg_init->warm_reset) 712 reg |= PALMAS_SMPS12_CTRL_WR_S; 713 else 714 reg &= ~PALMAS_SMPS12_CTRL_WR_S; 715 716 if (reg_init->roof_floor) 717 reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 718 else 719 reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; 720 721 reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK; 722 if (reg_init->mode_sleep) 723 reg |= reg_init->mode_sleep << 724 PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; 725 } 726 727 ret = palmas_smps_write(palmas, addr, reg); 728 if (ret) 729 return ret; 730 731 if (rinfo->vsel_addr && reg_init->vsel) { 732 733 reg = reg_init->vsel; 734 735 ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg); 736 if (ret) 737 return ret; 738 } 739 740 if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) && 741 (id != PALMAS_REG_SMPS10_OUT2)) { 742 /* Enable externally controlled regulator */ 743 ret = palmas_smps_read(palmas, addr, ®); 744 if (ret < 0) 745 return ret; 746 747 if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) { 748 reg |= SMPS_CTRL_MODE_ON; 749 ret = palmas_smps_write(palmas, addr, reg); 750 if (ret < 0) 751 return ret; 752 } 753 return palmas_regulator_config_external(palmas, id, reg_init); 754 } 755 return 0; 756 } 757 758 static int palmas_ldo_init(struct palmas *palmas, int id, 759 struct palmas_reg_init *reg_init) 760 { 761 unsigned int reg; 762 unsigned int addr; 763 int ret; 764 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 765 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 766 767 addr = rinfo->ctrl_addr; 768 769 ret = palmas_ldo_read(palmas, addr, ®); 770 if (ret) 771 return ret; 772 773 if (reg_init->warm_reset) 774 reg |= PALMAS_LDO1_CTRL_WR_S; 775 else 776 reg &= ~PALMAS_LDO1_CTRL_WR_S; 777 778 if (reg_init->mode_sleep) 779 reg |= PALMAS_LDO1_CTRL_MODE_SLEEP; 780 else 781 reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP; 782 783 ret = palmas_ldo_write(palmas, addr, reg); 784 if (ret) 785 return ret; 786 787 if (reg_init->roof_floor) { 788 /* Enable externally controlled regulator */ 789 ret = palmas_update_bits(palmas, PALMAS_LDO_BASE, 790 addr, PALMAS_LDO1_CTRL_MODE_ACTIVE, 791 PALMAS_LDO1_CTRL_MODE_ACTIVE); 792 if (ret < 0) { 793 dev_err(palmas->dev, 794 "LDO Register 0x%02x update failed %d\n", 795 addr, ret); 796 return ret; 797 } 798 return palmas_regulator_config_external(palmas, id, reg_init); 799 } 800 return 0; 801 } 802 803 static int palmas_extreg_init(struct palmas *palmas, int id, 804 struct palmas_reg_init *reg_init) 805 { 806 unsigned int addr; 807 int ret; 808 unsigned int val = 0; 809 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 810 struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; 811 812 addr = rinfo->ctrl_addr; 813 814 if (reg_init->mode_sleep) 815 val = PALMAS_REGEN1_CTRL_MODE_SLEEP; 816 817 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 818 addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); 819 if (ret < 0) { 820 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", 821 addr, ret); 822 return ret; 823 } 824 825 if (reg_init->roof_floor) { 826 /* Enable externally controlled regulator */ 827 ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, 828 addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE, 829 PALMAS_REGEN1_CTRL_MODE_ACTIVE); 830 if (ret < 0) { 831 dev_err(palmas->dev, 832 "Resource Register 0x%02x update failed %d\n", 833 addr, ret); 834 return ret; 835 } 836 return palmas_regulator_config_external(palmas, id, reg_init); 837 } 838 return 0; 839 } 840 841 static void palmas_enable_ldo8_track(struct palmas *palmas) 842 { 843 unsigned int reg; 844 unsigned int addr; 845 int ret; 846 struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; 847 struct palmas_regs_info *rinfo; 848 849 rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8]; 850 addr = rinfo->ctrl_addr; 851 852 ret = palmas_ldo_read(palmas, addr, ®); 853 if (ret) { 854 dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); 855 return; 856 } 857 858 reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; 859 ret = palmas_ldo_write(palmas, addr, reg); 860 if (ret < 0) { 861 dev_err(palmas->dev, "Error in enabling tracking mode\n"); 862 return; 863 } 864 /* 865 * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 866 * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, 867 * and can be set from 0.45 to 1.65 V. 868 */ 869 addr = rinfo->vsel_addr; 870 ret = palmas_ldo_read(palmas, addr, ®); 871 if (ret) { 872 dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); 873 return; 874 } 875 876 reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; 877 ret = palmas_ldo_write(palmas, addr, reg); 878 if (ret < 0) 879 dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); 880 881 return; 882 } 883 884 static int palmas_ldo_registration(struct palmas_pmic *pmic, 885 struct palmas_pmic_driver_data *ddata, 886 struct palmas_pmic_platform_data *pdata, 887 const char *pdev_name, 888 struct regulator_config config) 889 { 890 int id, ret; 891 struct regulator_dev *rdev; 892 struct palmas_reg_init *reg_init; 893 struct palmas_regs_info *rinfo; 894 struct regulator_desc *desc; 895 896 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 897 if (pdata && pdata->reg_init[id]) 898 reg_init = pdata->reg_init[id]; 899 else 900 reg_init = NULL; 901 902 rinfo = &ddata->palmas_regs_info[id]; 903 /* Miss out regulators which are not available due 904 * to alternate functions. 905 */ 906 907 /* Register the regulators */ 908 desc = &pmic->desc[id]; 909 desc->name = rinfo->name; 910 desc->id = id; 911 desc->type = REGULATOR_VOLTAGE; 912 desc->owner = THIS_MODULE; 913 914 if (id < PALMAS_REG_REGEN1) { 915 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; 916 if (reg_init && reg_init->roof_floor) 917 desc->ops = &palmas_ops_ext_control_ldo; 918 else 919 desc->ops = &palmas_ops_ldo; 920 desc->min_uV = 900000; 921 desc->uV_step = 50000; 922 desc->linear_min_sel = 1; 923 desc->enable_time = 500; 924 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 925 rinfo->vsel_addr); 926 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; 927 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 928 rinfo->ctrl_addr); 929 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; 930 931 /* Check if LDO8 is in tracking mode or not */ 932 if (pdata && (id == PALMAS_REG_LDO8) && 933 pdata->enable_ldo8_tracking) { 934 palmas_enable_ldo8_track(pmic->palmas); 935 desc->min_uV = 450000; 936 desc->uV_step = 25000; 937 } 938 939 /* LOD6 in vibrator mode will have enable time 2000us */ 940 if (pdata && pdata->ldo6_vibrator && 941 (id == PALMAS_REG_LDO6)) 942 desc->enable_time = 2000; 943 944 if (id == PALMAS_REG_LDO9) { 945 desc->ops = &palmas_ops_ldo9; 946 desc->bypass_reg = desc->enable_reg; 947 desc->bypass_mask = 948 PALMAS_LDO9_CTRL_LDO_BYPASS_EN; 949 } 950 } else { 951 if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3) 952 continue; 953 954 desc->n_voltages = 1; 955 if (reg_init && reg_init->roof_floor) 956 desc->ops = &palmas_ops_ext_control_extreg; 957 else 958 desc->ops = &palmas_ops_extreg; 959 desc->enable_reg = 960 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 961 rinfo->ctrl_addr); 962 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; 963 } 964 965 if (pdata) 966 config.init_data = pdata->reg_data[id]; 967 else 968 config.init_data = NULL; 969 970 desc->supply_name = rinfo->sname; 971 config.of_node = ddata->palmas_matches[id].of_node; 972 973 rdev = devm_regulator_register(pmic->dev, desc, &config); 974 if (IS_ERR(rdev)) { 975 dev_err(pmic->dev, 976 "failed to register %s regulator\n", 977 pdev_name); 978 return PTR_ERR(rdev); 979 } 980 981 /* Save regulator for cleanup */ 982 pmic->rdev[id] = rdev; 983 984 /* Initialise sleep/init values from platform data */ 985 if (pdata) { 986 reg_init = pdata->reg_init[id]; 987 if (reg_init) { 988 if (id <= ddata->ldo_end) 989 ret = palmas_ldo_init(pmic->palmas, id, 990 reg_init); 991 else 992 ret = palmas_extreg_init(pmic->palmas, 993 id, reg_init); 994 if (ret) 995 return ret; 996 } 997 } 998 } 999 1000 return 0; 1001 } 1002 1003 static int tps65917_ldo_registration(struct palmas_pmic *pmic, 1004 struct palmas_pmic_driver_data *ddata, 1005 struct palmas_pmic_platform_data *pdata, 1006 const char *pdev_name, 1007 struct regulator_config config) 1008 { 1009 int id, ret; 1010 struct regulator_dev *rdev; 1011 struct palmas_reg_init *reg_init; 1012 struct palmas_regs_info *rinfo; 1013 struct regulator_desc *desc; 1014 1015 for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { 1016 if (pdata && pdata->reg_init[id]) 1017 reg_init = pdata->reg_init[id]; 1018 else 1019 reg_init = NULL; 1020 1021 /* Miss out regulators which are not available due 1022 * to alternate functions. 1023 */ 1024 rinfo = &ddata->palmas_regs_info[id]; 1025 1026 /* Register the regulators */ 1027 desc = &pmic->desc[id]; 1028 desc->name = rinfo->name; 1029 desc->id = id; 1030 desc->type = REGULATOR_VOLTAGE; 1031 desc->owner = THIS_MODULE; 1032 1033 if (id < TPS65917_REG_REGEN1) { 1034 desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; 1035 if (reg_init && reg_init->roof_floor) 1036 desc->ops = &palmas_ops_ext_control_ldo; 1037 else 1038 desc->ops = &tps65917_ops_ldo; 1039 desc->min_uV = 900000; 1040 desc->uV_step = 50000; 1041 desc->linear_min_sel = 1; 1042 desc->enable_time = 500; 1043 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1044 rinfo->vsel_addr); 1045 desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; 1046 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, 1047 rinfo->ctrl_addr); 1048 desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; 1049 /* 1050 * To be confirmed. Discussion on going with PMIC Team. 1051 * It is of the order of ~60mV/uS. 1052 */ 1053 desc->ramp_delay = 2500; 1054 if (id == TPS65917_REG_LDO1 || 1055 id == TPS65917_REG_LDO2) { 1056 desc->ops = &tps65917_ops_ldo_1_2; 1057 desc->bypass_reg = desc->enable_reg; 1058 desc->bypass_mask = 1059 TPS65917_LDO1_CTRL_BYPASS_EN; 1060 } 1061 } else { 1062 desc->n_voltages = 1; 1063 if (reg_init && reg_init->roof_floor) 1064 desc->ops = &palmas_ops_ext_control_extreg; 1065 else 1066 desc->ops = &palmas_ops_extreg; 1067 desc->enable_reg = 1068 PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, 1069 rinfo->ctrl_addr); 1070 desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; 1071 } 1072 1073 if (pdata) 1074 config.init_data = pdata->reg_data[id]; 1075 else 1076 config.init_data = NULL; 1077 1078 desc->supply_name = rinfo->sname; 1079 config.of_node = ddata->palmas_matches[id].of_node; 1080 1081 rdev = devm_regulator_register(pmic->dev, desc, &config); 1082 if (IS_ERR(rdev)) { 1083 dev_err(pmic->dev, 1084 "failed to register %s regulator\n", 1085 pdev_name); 1086 return PTR_ERR(rdev); 1087 } 1088 1089 /* Save regulator for cleanup */ 1090 pmic->rdev[id] = rdev; 1091 1092 /* Initialise sleep/init values from platform data */ 1093 if (pdata) { 1094 reg_init = pdata->reg_init[id]; 1095 if (reg_init) { 1096 if (id < TPS65917_REG_REGEN1) 1097 ret = palmas_ldo_init(pmic->palmas, 1098 id, reg_init); 1099 else 1100 ret = palmas_extreg_init(pmic->palmas, 1101 id, reg_init); 1102 if (ret) 1103 return ret; 1104 } 1105 } 1106 } 1107 1108 return 0; 1109 } 1110 1111 static int palmas_smps_registration(struct palmas_pmic *pmic, 1112 struct palmas_pmic_driver_data *ddata, 1113 struct palmas_pmic_platform_data *pdata, 1114 const char *pdev_name, 1115 struct regulator_config config) 1116 { 1117 int id, ret; 1118 unsigned int addr, reg; 1119 struct regulator_dev *rdev; 1120 struct palmas_reg_init *reg_init; 1121 struct palmas_regs_info *rinfo; 1122 struct regulator_desc *desc; 1123 1124 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1125 bool ramp_delay_support = false; 1126 1127 /* 1128 * Miss out regulators which are not available due 1129 * to slaving configurations. 1130 */ 1131 switch (id) { 1132 case PALMAS_REG_SMPS12: 1133 case PALMAS_REG_SMPS3: 1134 if (pmic->smps123) 1135 continue; 1136 if (id == PALMAS_REG_SMPS12) 1137 ramp_delay_support = true; 1138 break; 1139 case PALMAS_REG_SMPS123: 1140 if (!pmic->smps123) 1141 continue; 1142 ramp_delay_support = true; 1143 break; 1144 case PALMAS_REG_SMPS45: 1145 case PALMAS_REG_SMPS7: 1146 if (pmic->smps457) 1147 continue; 1148 if (id == PALMAS_REG_SMPS45) 1149 ramp_delay_support = true; 1150 break; 1151 case PALMAS_REG_SMPS457: 1152 if (!pmic->smps457) 1153 continue; 1154 ramp_delay_support = true; 1155 break; 1156 case PALMAS_REG_SMPS10_OUT1: 1157 case PALMAS_REG_SMPS10_OUT2: 1158 if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST)) 1159 continue; 1160 } 1161 rinfo = &ddata->palmas_regs_info[id]; 1162 desc = &pmic->desc[id]; 1163 1164 if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) 1165 ramp_delay_support = true; 1166 1167 if (ramp_delay_support) { 1168 addr = rinfo->tstep_addr; 1169 ret = palmas_smps_read(pmic->palmas, addr, ®); 1170 if (ret < 0) { 1171 dev_err(pmic->dev, 1172 "reading TSTEP reg failed: %d\n", ret); 1173 return ret; 1174 } 1175 desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3]; 1176 pmic->ramp_delay[id] = desc->ramp_delay; 1177 } 1178 1179 /* Initialise sleep/init values from platform data */ 1180 if (pdata && pdata->reg_init[id]) { 1181 reg_init = pdata->reg_init[id]; 1182 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1183 if (ret) 1184 return ret; 1185 } else { 1186 reg_init = NULL; 1187 } 1188 1189 /* Register the regulators */ 1190 desc->name = rinfo->name; 1191 desc->id = id; 1192 1193 switch (id) { 1194 case PALMAS_REG_SMPS10_OUT1: 1195 case PALMAS_REG_SMPS10_OUT2: 1196 desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; 1197 desc->ops = &palmas_ops_smps10; 1198 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1199 PALMAS_SMPS10_CTRL); 1200 desc->vsel_mask = SMPS10_VSEL; 1201 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1202 PALMAS_SMPS10_CTRL); 1203 if (id == PALMAS_REG_SMPS10_OUT1) 1204 desc->enable_mask = SMPS10_SWITCH_EN; 1205 else 1206 desc->enable_mask = SMPS10_BOOST_EN; 1207 desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1208 PALMAS_SMPS10_CTRL); 1209 desc->bypass_mask = SMPS10_BYPASS_EN; 1210 desc->min_uV = 3750000; 1211 desc->uV_step = 1250000; 1212 break; 1213 default: 1214 /* 1215 * Read and store the RANGE bit for later use 1216 * This must be done before regulator is probed, 1217 * otherwise we error in probe with unsupportable 1218 * ranges. Read the current smps mode for later use. 1219 */ 1220 addr = rinfo->vsel_addr; 1221 desc->n_linear_ranges = 3; 1222 1223 ret = palmas_smps_read(pmic->palmas, addr, ®); 1224 if (ret) 1225 return ret; 1226 if (reg & PALMAS_SMPS12_VOLTAGE_RANGE) 1227 pmic->range[id] = 1; 1228 if (pmic->range[id]) 1229 desc->linear_ranges = smps_high_ranges; 1230 else 1231 desc->linear_ranges = smps_low_ranges; 1232 1233 if (reg_init && reg_init->roof_floor) 1234 desc->ops = &palmas_ops_ext_control_smps; 1235 else 1236 desc->ops = &palmas_ops_smps; 1237 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1238 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1239 rinfo->vsel_addr); 1240 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1241 1242 /* Read the smps mode for later use. */ 1243 addr = rinfo->ctrl_addr; 1244 ret = palmas_smps_read(pmic->palmas, addr, ®); 1245 if (ret) 1246 return ret; 1247 pmic->current_reg_mode[id] = reg & 1248 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1249 1250 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1251 rinfo->ctrl_addr); 1252 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1253 /* set_mode overrides this value */ 1254 desc->enable_val = SMPS_CTRL_MODE_ON; 1255 } 1256 1257 desc->type = REGULATOR_VOLTAGE; 1258 desc->owner = THIS_MODULE; 1259 1260 if (pdata) 1261 config.init_data = pdata->reg_data[id]; 1262 else 1263 config.init_data = NULL; 1264 1265 desc->supply_name = rinfo->sname; 1266 config.of_node = ddata->palmas_matches[id].of_node; 1267 1268 rdev = devm_regulator_register(pmic->dev, desc, &config); 1269 if (IS_ERR(rdev)) { 1270 dev_err(pmic->dev, 1271 "failed to register %s regulator\n", 1272 pdev_name); 1273 return PTR_ERR(rdev); 1274 } 1275 1276 /* Save regulator for cleanup */ 1277 pmic->rdev[id] = rdev; 1278 } 1279 1280 return 0; 1281 } 1282 1283 static int tps65917_smps_registration(struct palmas_pmic *pmic, 1284 struct palmas_pmic_driver_data *ddata, 1285 struct palmas_pmic_platform_data *pdata, 1286 const char *pdev_name, 1287 struct regulator_config config) 1288 { 1289 int id, ret; 1290 unsigned int addr, reg; 1291 struct regulator_dev *rdev; 1292 struct palmas_reg_init *reg_init; 1293 struct palmas_regs_info *rinfo; 1294 struct regulator_desc *desc; 1295 1296 for (id = ddata->smps_start; id <= ddata->smps_end; id++) { 1297 /* 1298 * Miss out regulators which are not available due 1299 * to slaving configurations. 1300 */ 1301 desc = &pmic->desc[id]; 1302 desc->n_linear_ranges = 3; 1303 if ((id == TPS65917_REG_SMPS2) && pmic->smps12) 1304 continue; 1305 1306 /* Initialise sleep/init values from platform data */ 1307 if (pdata && pdata->reg_init[id]) { 1308 reg_init = pdata->reg_init[id]; 1309 ret = palmas_smps_init(pmic->palmas, id, reg_init); 1310 if (ret) 1311 return ret; 1312 } else { 1313 reg_init = NULL; 1314 } 1315 rinfo = &ddata->palmas_regs_info[id]; 1316 1317 /* Register the regulators */ 1318 desc->name = rinfo->name; 1319 desc->id = id; 1320 1321 /* 1322 * Read and store the RANGE bit for later use 1323 * This must be done before regulator is probed, 1324 * otherwise we error in probe with unsupportable 1325 * ranges. Read the current smps mode for later use. 1326 */ 1327 addr = rinfo->vsel_addr; 1328 1329 ret = palmas_smps_read(pmic->palmas, addr, ®); 1330 if (ret) 1331 return ret; 1332 if (reg & TPS65917_SMPS1_VOLTAGE_RANGE) 1333 pmic->range[id] = 1; 1334 1335 if (pmic->range[id]) 1336 desc->linear_ranges = smps_high_ranges; 1337 else 1338 desc->linear_ranges = smps_low_ranges; 1339 1340 if (reg_init && reg_init->roof_floor) 1341 desc->ops = &tps65917_ops_ext_control_smps; 1342 else 1343 desc->ops = &tps65917_ops_smps; 1344 desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; 1345 desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1346 rinfo->vsel_addr); 1347 desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; 1348 desc->ramp_delay = 2500; 1349 1350 /* Read the smps mode for later use. */ 1351 addr = rinfo->ctrl_addr; 1352 ret = palmas_smps_read(pmic->palmas, addr, ®); 1353 if (ret) 1354 return ret; 1355 pmic->current_reg_mode[id] = reg & 1356 PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1357 desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, 1358 rinfo->ctrl_addr); 1359 desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; 1360 /* set_mode overrides this value */ 1361 desc->enable_val = SMPS_CTRL_MODE_ON; 1362 1363 desc->type = REGULATOR_VOLTAGE; 1364 desc->owner = THIS_MODULE; 1365 1366 if (pdata) 1367 config.init_data = pdata->reg_data[id]; 1368 else 1369 config.init_data = NULL; 1370 1371 desc->supply_name = rinfo->sname; 1372 config.of_node = ddata->palmas_matches[id].of_node; 1373 1374 rdev = devm_regulator_register(pmic->dev, desc, &config); 1375 if (IS_ERR(rdev)) { 1376 dev_err(pmic->dev, 1377 "failed to register %s regulator\n", 1378 pdev_name); 1379 return PTR_ERR(rdev); 1380 } 1381 1382 /* Save regulator for cleanup */ 1383 pmic->rdev[id] = rdev; 1384 } 1385 1386 return 0; 1387 } 1388 1389 static struct of_regulator_match palmas_matches[] = { 1390 { .name = "smps12", }, 1391 { .name = "smps123", }, 1392 { .name = "smps3", }, 1393 { .name = "smps45", }, 1394 { .name = "smps457", }, 1395 { .name = "smps6", }, 1396 { .name = "smps7", }, 1397 { .name = "smps8", }, 1398 { .name = "smps9", }, 1399 { .name = "smps10_out2", }, 1400 { .name = "smps10_out1", }, 1401 { .name = "ldo1", }, 1402 { .name = "ldo2", }, 1403 { .name = "ldo3", }, 1404 { .name = "ldo4", }, 1405 { .name = "ldo5", }, 1406 { .name = "ldo6", }, 1407 { .name = "ldo7", }, 1408 { .name = "ldo8", }, 1409 { .name = "ldo9", }, 1410 { .name = "ldoln", }, 1411 { .name = "ldousb", }, 1412 { .name = "regen1", }, 1413 { .name = "regen2", }, 1414 { .name = "regen3", }, 1415 { .name = "sysen1", }, 1416 { .name = "sysen2", }, 1417 }; 1418 1419 static struct of_regulator_match tps65917_matches[] = { 1420 { .name = "smps1", }, 1421 { .name = "smps2", }, 1422 { .name = "smps3", }, 1423 { .name = "smps4", }, 1424 { .name = "smps5", }, 1425 { .name = "ldo1", }, 1426 { .name = "ldo2", }, 1427 { .name = "ldo3", }, 1428 { .name = "ldo4", }, 1429 { .name = "ldo5", }, 1430 { .name = "regen1", }, 1431 { .name = "regen2", }, 1432 { .name = "regen3", }, 1433 { .name = "sysen1", }, 1434 { .name = "sysen2", }, 1435 }; 1436 1437 static struct palmas_pmic_driver_data palmas_ddata = { 1438 .smps_start = PALMAS_REG_SMPS12, 1439 .smps_end = PALMAS_REG_SMPS10_OUT1, 1440 .ldo_begin = PALMAS_REG_LDO1, 1441 .ldo_end = PALMAS_REG_LDOUSB, 1442 .max_reg = PALMAS_NUM_REGS, 1443 .has_regen3 = true, 1444 .palmas_regs_info = palmas_generic_regs_info, 1445 .palmas_matches = palmas_matches, 1446 .sleep_req_info = palma_sleep_req_info, 1447 .smps_register = palmas_smps_registration, 1448 .ldo_register = palmas_ldo_registration, 1449 }; 1450 1451 static struct palmas_pmic_driver_data tps65917_ddata = { 1452 .smps_start = TPS65917_REG_SMPS1, 1453 .smps_end = TPS65917_REG_SMPS5, 1454 .ldo_begin = TPS65917_REG_LDO1, 1455 .ldo_end = TPS65917_REG_LDO5, 1456 .max_reg = TPS65917_NUM_REGS, 1457 .has_regen3 = true, 1458 .palmas_regs_info = tps65917_regs_info, 1459 .palmas_matches = tps65917_matches, 1460 .sleep_req_info = tps65917_sleep_req_info, 1461 .smps_register = tps65917_smps_registration, 1462 .ldo_register = tps65917_ldo_registration, 1463 }; 1464 1465 static void palmas_dt_to_pdata(struct device *dev, 1466 struct device_node *node, 1467 struct palmas_pmic_platform_data *pdata, 1468 struct palmas_pmic_driver_data *ddata) 1469 { 1470 struct device_node *regulators; 1471 u32 prop; 1472 int idx, ret; 1473 1474 regulators = of_get_child_by_name(node, "regulators"); 1475 if (!regulators) { 1476 dev_info(dev, "regulator node not found\n"); 1477 return; 1478 } 1479 1480 ret = of_regulator_match(dev, regulators, ddata->palmas_matches, 1481 ddata->max_reg); 1482 of_node_put(regulators); 1483 if (ret < 0) { 1484 dev_err(dev, "Error parsing regulator init data: %d\n", ret); 1485 return; 1486 } 1487 1488 for (idx = 0; idx < ddata->max_reg; idx++) { 1489 if (!ddata->palmas_matches[idx].init_data || 1490 !ddata->palmas_matches[idx].of_node) 1491 continue; 1492 1493 pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data; 1494 1495 pdata->reg_init[idx] = devm_kzalloc(dev, 1496 sizeof(struct palmas_reg_init), GFP_KERNEL); 1497 1498 pdata->reg_init[idx]->warm_reset = 1499 of_property_read_bool(ddata->palmas_matches[idx].of_node, 1500 "ti,warm-reset"); 1501 1502 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, 1503 "ti,roof-floor", &prop); 1504 /* EINVAL: Property not found */ 1505 if (ret != -EINVAL) { 1506 int econtrol; 1507 1508 /* use default value, when no value is specified */ 1509 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1510 if (!ret) { 1511 switch (prop) { 1512 case 1: 1513 econtrol = PALMAS_EXT_CONTROL_ENABLE1; 1514 break; 1515 case 2: 1516 econtrol = PALMAS_EXT_CONTROL_ENABLE2; 1517 break; 1518 case 3: 1519 econtrol = PALMAS_EXT_CONTROL_NSLEEP; 1520 break; 1521 default: 1522 WARN_ON(1); 1523 dev_warn(dev, 1524 "%s: Invalid roof-floor option: %u\n", 1525 palmas_matches[idx].name, prop); 1526 break; 1527 } 1528 } 1529 pdata->reg_init[idx]->roof_floor = econtrol; 1530 } 1531 1532 ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, 1533 "ti,mode-sleep", &prop); 1534 if (!ret) 1535 pdata->reg_init[idx]->mode_sleep = prop; 1536 1537 ret = of_property_read_bool(ddata->palmas_matches[idx].of_node, 1538 "ti,smps-range"); 1539 if (ret) 1540 pdata->reg_init[idx]->vsel = 1541 PALMAS_SMPS12_VOLTAGE_RANGE; 1542 1543 if (idx == PALMAS_REG_LDO8) 1544 pdata->enable_ldo8_tracking = of_property_read_bool( 1545 ddata->palmas_matches[idx].of_node, 1546 "ti,enable-ldo8-tracking"); 1547 } 1548 1549 pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); 1550 } 1551 1552 static const struct of_device_id of_palmas_match_tbl[] = { 1553 { 1554 .compatible = "ti,palmas-pmic", 1555 .data = &palmas_ddata, 1556 }, 1557 { 1558 .compatible = "ti,twl6035-pmic", 1559 .data = &palmas_ddata, 1560 }, 1561 { 1562 .compatible = "ti,twl6036-pmic", 1563 .data = &palmas_ddata, 1564 }, 1565 { 1566 .compatible = "ti,twl6037-pmic", 1567 .data = &palmas_ddata, 1568 }, 1569 { 1570 .compatible = "ti,tps65913-pmic", 1571 .data = &palmas_ddata, 1572 }, 1573 { 1574 .compatible = "ti,tps65914-pmic", 1575 .data = &palmas_ddata, 1576 }, 1577 { 1578 .compatible = "ti,tps80036-pmic", 1579 .data = &palmas_ddata, 1580 }, 1581 { 1582 .compatible = "ti,tps659038-pmic", 1583 .data = &palmas_ddata, 1584 }, 1585 { 1586 .compatible = "ti,tps65917-pmic", 1587 .data = &tps65917_ddata, 1588 }, 1589 { /* end */ } 1590 }; 1591 1592 static int palmas_regulators_probe(struct platform_device *pdev) 1593 { 1594 struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); 1595 struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); 1596 struct device_node *node = pdev->dev.of_node; 1597 struct palmas_pmic_driver_data *driver_data; 1598 struct regulator_config config = { }; 1599 struct palmas_pmic *pmic; 1600 const char *pdev_name; 1601 const struct of_device_id *match; 1602 int ret = 0; 1603 unsigned int reg; 1604 1605 match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev); 1606 1607 if (!match) 1608 return -ENODATA; 1609 1610 driver_data = (struct palmas_pmic_driver_data *)match->data; 1611 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); 1612 if (!pdata) 1613 return -ENOMEM; 1614 1615 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); 1616 if (!pmic) 1617 return -ENOMEM; 1618 1619 if (of_device_is_compatible(node, "ti,tps659038-pmic")) { 1620 palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr = 1621 TPS659038_REGEN2_CTRL; 1622 palmas_ddata.has_regen3 = false; 1623 } 1624 1625 pmic->dev = &pdev->dev; 1626 pmic->palmas = palmas; 1627 palmas->pmic = pmic; 1628 platform_set_drvdata(pdev, pmic); 1629 pmic->palmas->pmic_ddata = driver_data; 1630 1631 palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data); 1632 1633 ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®); 1634 if (ret) 1635 return ret; 1636 1637 if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) 1638 pmic->smps123 = 1; 1639 1640 if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN) 1641 pmic->smps457 = 1; 1642 1643 config.regmap = palmas->regmap[REGULATOR_SLAVE]; 1644 config.dev = &pdev->dev; 1645 config.driver_data = pmic; 1646 pdev_name = pdev->name; 1647 1648 ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name, 1649 config); 1650 if (ret) 1651 return ret; 1652 1653 ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name, 1654 config); 1655 1656 return ret; 1657 } 1658 1659 static struct platform_driver palmas_driver = { 1660 .driver = { 1661 .name = "palmas-pmic", 1662 .of_match_table = of_palmas_match_tbl, 1663 }, 1664 .probe = palmas_regulators_probe, 1665 }; 1666 1667 static int __init palmas_init(void) 1668 { 1669 return platform_driver_register(&palmas_driver); 1670 } 1671 subsys_initcall(palmas_init); 1672 1673 static void __exit palmas_exit(void) 1674 { 1675 platform_driver_unregister(&palmas_driver); 1676 } 1677 module_exit(palmas_exit); 1678 1679 MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); 1680 MODULE_DESCRIPTION("Palmas voltage regulator driver"); 1681 MODULE_LICENSE("GPL"); 1682 MODULE_ALIAS("platform:palmas-pmic"); 1683 MODULE_DEVICE_TABLE(of, of_palmas_match_tbl); 1684