1 // SPDX-License-Identifier: BSD-3-Clause 2 /* 3 * Copyright (c) 2016-2020, STMicroelectronics - All Rights Reserved 4 */ 5 6 #include <assert.h> 7 #include <drivers/stpmic1.h> 8 #include <kernel/panic.h> 9 #include <platform_config.h> 10 #include <stdint.h> 11 #include <string.h> 12 #include <trace.h> 13 #include <util.h> 14 15 struct regul_struct { 16 const char *dt_node_name; 17 const uint16_t *voltage_table; 18 uint8_t voltage_table_size; 19 uint8_t control_reg; 20 uint8_t low_power_reg; 21 uint8_t enable_pos; 22 uint8_t pull_down_reg; 23 uint8_t pull_down_pos; 24 uint8_t mask_reset_reg; 25 uint8_t mask_reset_pos; 26 }; 27 28 static struct i2c_handle_s *pmic_i2c_handle; 29 static uint16_t pmic_i2c_addr; 30 31 /* Voltage tables in mV */ 32 static const uint16_t buck1_voltage_table[] = { 33 725, 34 725, 35 725, 36 725, 37 725, 38 725, 39 750, 40 775, 41 800, 42 825, 43 850, 44 875, 45 900, 46 925, 47 950, 48 975, 49 1000, 50 1025, 51 1050, 52 1075, 53 1100, 54 1125, 55 1150, 56 1175, 57 1200, 58 1225, 59 1250, 60 1275, 61 1300, 62 1325, 63 1350, 64 1375, 65 1400, 66 1425, 67 1450, 68 1475, 69 1500, 70 1500, 71 1500, 72 1500, 73 1500, 74 1500, 75 1500, 76 1500, 77 1500, 78 1500, 79 1500, 80 1500, 81 1500, 82 1500, 83 1500, 84 1500, 85 1500, 86 1500, 87 1500, 88 1500, 89 1500, 90 1500, 91 1500, 92 1500, 93 1500, 94 1500, 95 1500, 96 1500, 97 }; 98 99 static const uint16_t buck2_voltage_table[] = { 100 1000, 101 1000, 102 1000, 103 1000, 104 1000, 105 1000, 106 1000, 107 1000, 108 1000, 109 1000, 110 1000, 111 1000, 112 1000, 113 1000, 114 1000, 115 1000, 116 1000, 117 1000, 118 1050, 119 1050, 120 1100, 121 1100, 122 1150, 123 1150, 124 1200, 125 1200, 126 1250, 127 1250, 128 1300, 129 1300, 130 1350, 131 1350, 132 1400, 133 1400, 134 1450, 135 1450, 136 1500, 137 }; 138 139 static const uint16_t buck3_voltage_table[] = { 140 1000, 141 1000, 142 1000, 143 1000, 144 1000, 145 1000, 146 1000, 147 1000, 148 1000, 149 1000, 150 1000, 151 1000, 152 1000, 153 1000, 154 1000, 155 1000, 156 1000, 157 1000, 158 1000, 159 1000, 160 1100, 161 1100, 162 1100, 163 1100, 164 1200, 165 1200, 166 1200, 167 1200, 168 1300, 169 1300, 170 1300, 171 1300, 172 1400, 173 1400, 174 1400, 175 1400, 176 1500, 177 1600, 178 1700, 179 1800, 180 1900, 181 2000, 182 2100, 183 2200, 184 2300, 185 2400, 186 2500, 187 2600, 188 2700, 189 2800, 190 2900, 191 3000, 192 3100, 193 3200, 194 3300, 195 3400, 196 }; 197 198 static const uint16_t buck4_voltage_table[] = { 199 600, 200 625, 201 650, 202 675, 203 700, 204 725, 205 750, 206 775, 207 800, 208 825, 209 850, 210 875, 211 900, 212 925, 213 950, 214 975, 215 1000, 216 1025, 217 1050, 218 1075, 219 1100, 220 1125, 221 1150, 222 1175, 223 1200, 224 1225, 225 1250, 226 1275, 227 1300, 228 1300, 229 1350, 230 1350, 231 1400, 232 1400, 233 1450, 234 1450, 235 1500, 236 1600, 237 1700, 238 1800, 239 1900, 240 2000, 241 2100, 242 2200, 243 2300, 244 2400, 245 2500, 246 2600, 247 2700, 248 2800, 249 2900, 250 3000, 251 3100, 252 3200, 253 3300, 254 3400, 255 3500, 256 3600, 257 3700, 258 3800, 259 3900, 260 }; 261 262 static const uint16_t ldo1_voltage_table[] = { 263 1700, 264 1700, 265 1700, 266 1700, 267 1700, 268 1700, 269 1700, 270 1700, 271 1700, 272 1800, 273 1900, 274 2000, 275 2100, 276 2200, 277 2300, 278 2400, 279 2500, 280 2600, 281 2700, 282 2800, 283 2900, 284 3000, 285 3100, 286 3200, 287 3300, 288 }; 289 290 static const uint16_t ldo2_voltage_table[] = { 291 1700, 292 1700, 293 1700, 294 1700, 295 1700, 296 1700, 297 1700, 298 1700, 299 1700, 300 1800, 301 1900, 302 2000, 303 2100, 304 2200, 305 2300, 306 2400, 307 2500, 308 2600, 309 2700, 310 2800, 311 2900, 312 3000, 313 3100, 314 3200, 315 3300, 316 }; 317 318 static const uint16_t ldo3_voltage_table[] = { 319 1700, 320 1700, 321 1700, 322 1700, 323 1700, 324 1700, 325 1700, 326 1700, 327 1700, 328 1800, 329 1900, 330 2000, 331 2100, 332 2200, 333 2300, 334 2400, 335 2500, 336 2600, 337 2700, 338 2800, 339 2900, 340 3000, 341 3100, 342 3200, 343 3300, 344 3300, 345 3300, 346 3300, 347 3300, 348 3300, 349 3300, 350 500, /* VOUT2/2 (Sink/source mode) */ 351 0xFFFF, /* VREFDDR */ 352 }; 353 354 static const uint16_t ldo5_voltage_table[] = { 355 1700, 356 1700, 357 1700, 358 1700, 359 1700, 360 1700, 361 1700, 362 1700, 363 1700, 364 1800, 365 1900, 366 2000, 367 2100, 368 2200, 369 2300, 370 2400, 371 2500, 372 2600, 373 2700, 374 2800, 375 2900, 376 3000, 377 3100, 378 3200, 379 3300, 380 3400, 381 3500, 382 3600, 383 3700, 384 3800, 385 3900, 386 }; 387 388 static const uint16_t ldo6_voltage_table[] = { 389 900, 390 1000, 391 1100, 392 1200, 393 1300, 394 1400, 395 1500, 396 1600, 397 1700, 398 1800, 399 1900, 400 2000, 401 2100, 402 2200, 403 2300, 404 2400, 405 2500, 406 2600, 407 2700, 408 2800, 409 2900, 410 3000, 411 3100, 412 3200, 413 3300, 414 }; 415 416 static const uint16_t ldo4_voltage_table[] = { 417 3300, 418 }; 419 420 static const uint16_t vref_ddr_voltage_table[] = { 421 3300, 422 }; 423 424 /* Table of Regulators in PMIC SoC */ 425 static const struct regul_struct regulators_table[] = { 426 { 427 .dt_node_name = "buck1", 428 .voltage_table = buck1_voltage_table, 429 .voltage_table_size = ARRAY_SIZE(buck1_voltage_table), 430 .control_reg = BUCK1_CONTROL_REG, 431 .low_power_reg = BUCK1_PWRCTRL_REG, 432 .enable_pos = LDO_BUCK_ENABLE_POS, 433 .pull_down_reg = BUCK_PULL_DOWN_REG, 434 .pull_down_pos = BUCK1_PULL_DOWN_SHIFT, 435 .mask_reset_reg = MASK_RESET_BUCK_REG, 436 .mask_reset_pos = BUCK1_MASK_RESET_SHIFT, 437 }, 438 { 439 .dt_node_name = "buck2", 440 .voltage_table = buck2_voltage_table, 441 .voltage_table_size = ARRAY_SIZE(buck2_voltage_table), 442 .control_reg = BUCK2_CONTROL_REG, 443 .low_power_reg = BUCK2_PWRCTRL_REG, 444 .enable_pos = LDO_BUCK_ENABLE_POS, 445 .pull_down_reg = BUCK_PULL_DOWN_REG, 446 .pull_down_pos = BUCK2_PULL_DOWN_SHIFT, 447 .mask_reset_reg = MASK_RESET_BUCK_REG, 448 .mask_reset_pos = BUCK2_MASK_RESET_SHIFT, 449 }, 450 { 451 .dt_node_name = "buck3", 452 .voltage_table = buck3_voltage_table, 453 .voltage_table_size = ARRAY_SIZE(buck3_voltage_table), 454 .control_reg = BUCK3_CONTROL_REG, 455 .low_power_reg = BUCK3_PWRCTRL_REG, 456 .enable_pos = LDO_BUCK_ENABLE_POS, 457 .pull_down_reg = BUCK_PULL_DOWN_REG, 458 .pull_down_pos = BUCK3_PULL_DOWN_SHIFT, 459 .mask_reset_reg = MASK_RESET_BUCK_REG, 460 .mask_reset_pos = BUCK3_MASK_RESET_SHIFT, 461 }, 462 { 463 .dt_node_name = "buck4", 464 .voltage_table = buck4_voltage_table, 465 .voltage_table_size = ARRAY_SIZE(buck4_voltage_table), 466 .control_reg = BUCK4_CONTROL_REG, 467 .low_power_reg = BUCK4_PWRCTRL_REG, 468 .enable_pos = LDO_BUCK_ENABLE_POS, 469 .pull_down_reg = BUCK_PULL_DOWN_REG, 470 .pull_down_pos = BUCK4_PULL_DOWN_SHIFT, 471 .mask_reset_reg = MASK_RESET_BUCK_REG, 472 .mask_reset_pos = BUCK4_MASK_RESET_SHIFT, 473 }, 474 { 475 .dt_node_name = "ldo1", 476 .voltage_table = ldo1_voltage_table, 477 .voltage_table_size = ARRAY_SIZE(ldo1_voltage_table), 478 .control_reg = LDO1_CONTROL_REG, 479 .low_power_reg = LDO1_PWRCTRL_REG, 480 .enable_pos = LDO_BUCK_ENABLE_POS, 481 .mask_reset_reg = MASK_RESET_LDO_REG, 482 .mask_reset_pos = LDO1_MASK_RESET_SHIFT, 483 }, 484 { 485 .dt_node_name = "ldo2", 486 .voltage_table = ldo2_voltage_table, 487 .voltage_table_size = ARRAY_SIZE(ldo2_voltage_table), 488 .control_reg = LDO2_CONTROL_REG, 489 .low_power_reg = LDO2_PWRCTRL_REG, 490 .enable_pos = LDO_BUCK_ENABLE_POS, 491 .mask_reset_reg = MASK_RESET_LDO_REG, 492 .mask_reset_pos = LDO2_MASK_RESET_SHIFT, 493 }, 494 { 495 .dt_node_name = "ldo3", 496 .voltage_table = ldo3_voltage_table, 497 .voltage_table_size = ARRAY_SIZE(ldo3_voltage_table), 498 .control_reg = LDO3_CONTROL_REG, 499 .low_power_reg = LDO3_PWRCTRL_REG, 500 .enable_pos = LDO_BUCK_ENABLE_POS, 501 .mask_reset_reg = MASK_RESET_LDO_REG, 502 .mask_reset_pos = LDO3_MASK_RESET_SHIFT, 503 }, 504 { 505 .dt_node_name = "ldo4", 506 .voltage_table = ldo4_voltage_table, 507 .voltage_table_size = ARRAY_SIZE(ldo4_voltage_table), 508 .control_reg = LDO4_CONTROL_REG, 509 .low_power_reg = LDO4_PWRCTRL_REG, 510 .enable_pos = LDO_BUCK_ENABLE_POS, 511 .mask_reset_reg = MASK_RESET_LDO_REG, 512 .mask_reset_pos = LDO4_MASK_RESET_SHIFT, 513 }, 514 { 515 .dt_node_name = "ldo5", 516 .voltage_table = ldo5_voltage_table, 517 .voltage_table_size = ARRAY_SIZE(ldo5_voltage_table), 518 .control_reg = LDO5_CONTROL_REG, 519 .low_power_reg = LDO5_PWRCTRL_REG, 520 .enable_pos = LDO_BUCK_ENABLE_POS, 521 .mask_reset_reg = MASK_RESET_LDO_REG, 522 .mask_reset_pos = LDO5_MASK_RESET_SHIFT, 523 }, 524 { 525 .dt_node_name = "ldo6", 526 .voltage_table = ldo6_voltage_table, 527 .voltage_table_size = ARRAY_SIZE(ldo6_voltage_table), 528 .control_reg = LDO6_CONTROL_REG, 529 .low_power_reg = LDO6_PWRCTRL_REG, 530 .enable_pos = LDO_BUCK_ENABLE_POS, 531 .mask_reset_reg = MASK_RESET_LDO_REG, 532 .mask_reset_pos = LDO6_MASK_RESET_SHIFT, 533 }, 534 { 535 .dt_node_name = "vref_ddr", 536 .voltage_table = vref_ddr_voltage_table, 537 .voltage_table_size = ARRAY_SIZE(vref_ddr_voltage_table), 538 .control_reg = VREF_DDR_CONTROL_REG, 539 .low_power_reg = VREF_DDR_PWRCTRL_REG, 540 .enable_pos = LDO_BUCK_ENABLE_POS, 541 .mask_reset_reg = MASK_RESET_LDO_REG, 542 .mask_reset_pos = VREF_DDR_MASK_RESET_SHIFT, 543 }, 544 { 545 .dt_node_name = "boost", 546 }, 547 { 548 .dt_node_name = "pwr_sw1", 549 }, 550 { 551 .dt_node_name = "pwr_sw2", 552 }, 553 }; 554 555 static const struct regul_struct *get_regulator_data(const char *name) 556 { 557 unsigned int i = 0; 558 559 for (i = 0; i < ARRAY_SIZE(regulators_table); i++) 560 if (strcmp(name, regulators_table[i].dt_node_name) == 0) 561 return ®ulators_table[i]; 562 563 /* Regulator not found */ 564 panic(name); 565 } 566 567 static uint8_t voltage_to_index(const char *name, uint16_t millivolts) 568 { 569 const struct regul_struct *regul = get_regulator_data(name); 570 unsigned int i = 0; 571 572 assert(regul->voltage_table); 573 for (i = 0; i < regul->voltage_table_size; i++) 574 if (regul->voltage_table[i] == millivolts) 575 return i; 576 577 /* Voltage not found */ 578 panic(name); 579 } 580 581 int stpmic1_powerctrl_on(void) 582 { 583 return stpmic1_register_update(MAIN_CONTROL_REG, PWRCTRL_PIN_VALID, 584 PWRCTRL_PIN_VALID); 585 } 586 587 int stpmic1_switch_off(void) 588 { 589 return stpmic1_register_update(MAIN_CONTROL_REG, 1, 590 SOFTWARE_SWITCH_OFF_ENABLED); 591 } 592 593 int stpmic1_regulator_enable(const char *name) 594 { 595 const struct regul_struct *regul = get_regulator_data(name); 596 597 return stpmic1_register_update(regul->control_reg, 598 BIT(regul->enable_pos), 599 BIT(regul->enable_pos)); 600 } 601 602 int stpmic1_regulator_disable(const char *name) 603 { 604 const struct regul_struct *regul = get_regulator_data(name); 605 606 return stpmic1_register_update(regul->control_reg, 0, 607 BIT(regul->enable_pos)); 608 } 609 610 bool stpmic1_is_regulator_enabled(const char *name) 611 { 612 const struct regul_struct *regul = get_regulator_data(name); 613 uint8_t val = 0; 614 615 if (stpmic1_register_read(regul->control_reg, &val)) 616 panic(); 617 618 return val & BIT(regul->enable_pos); 619 } 620 621 int stpmic1_regulator_voltage_set(const char *name, uint16_t millivolts) 622 { 623 uint8_t voltage_index = voltage_to_index(name, millivolts); 624 const struct regul_struct *regul = get_regulator_data(name); 625 uint8_t mask = 0; 626 627 /* Voltage can be set for buck<N> or ldo<N> (except ldo4) regulators */ 628 if (!strcmp(name, "buck")) 629 mask = BUCK_VOLTAGE_MASK; 630 else if (!strcmp(name, "ldo") && strcmp(name, "ldo4")) 631 mask = LDO_VOLTAGE_MASK; 632 else 633 return 0; 634 635 return stpmic1_register_update(regul->control_reg, 636 voltage_index << LDO_BUCK_VOLTAGE_SHIFT, 637 mask); 638 } 639 640 int stpmic1_regulator_mask_reset_set(const char *name) 641 { 642 const struct regul_struct *regul = get_regulator_data(name); 643 644 return stpmic1_register_update(regul->mask_reset_reg, 645 BIT(regul->mask_reset_pos), 646 LDO_BUCK_RESET_MASK << 647 regul->mask_reset_pos); 648 } 649 650 int stpmic1_bo_enable_unpg(struct stpmic1_bo_cfg *cfg) 651 { 652 return stpmic1_register_update(cfg->ctrl_reg, 653 BIT(cfg->enable_pos), 654 BIT(cfg->enable_pos)); 655 } 656 657 /* Returns 1 if no configuration are expected applied at runtime, 0 otherwise */ 658 int stpmic1_bo_voltage_cfg(const char *name, uint16_t millivolts, 659 struct stpmic1_bo_cfg *cfg) 660 { 661 uint8_t voltage_index = voltage_to_index(name, millivolts); 662 const struct regul_struct *regul = get_regulator_data(name); 663 uint8_t mask = 0; 664 665 /* Voltage can be set for buck<N> or ldo<N> (except ldo4) regulators */ 666 if (!strcmp(name, "buck")) 667 mask = BUCK_VOLTAGE_MASK; 668 else if (!strcmp(name, "ldo") && strcmp(name, "ldo4")) 669 mask = LDO_VOLTAGE_MASK; 670 else 671 return 1; 672 673 cfg->ctrl_reg = regul->control_reg; 674 cfg->value = voltage_index << LDO_BUCK_VOLTAGE_SHIFT; 675 cfg->mask = mask; 676 677 return 0; 678 } 679 680 int stpmic1_bo_voltage_unpg(struct stpmic1_bo_cfg *cfg) 681 { 682 return stpmic1_register_update(cfg->ctrl_reg, cfg->value, cfg->mask); 683 } 684 685 int stpmic1_bo_pull_down_cfg(const char *name, struct stpmic1_bo_cfg *cfg) 686 { 687 const struct regul_struct *regul = get_regulator_data(name); 688 689 cfg->pd_reg = regul->pull_down_reg; 690 cfg->pd_value = BIT(regul->pull_down_pos); 691 cfg->pd_mask = LDO_BUCK_PULL_DOWN_MASK << regul->pull_down_pos; 692 693 return 0; 694 } 695 696 int stpmic1_bo_pull_down_unpg(struct stpmic1_bo_cfg *cfg) 697 { 698 return stpmic1_register_update(cfg->pd_reg, cfg->pd_value, 699 cfg->pd_mask); 700 } 701 702 int stpmic1_bo_mask_reset_cfg(const char *name, struct stpmic1_bo_cfg *cfg) 703 { 704 const struct regul_struct *regul = get_regulator_data(name); 705 706 cfg->mrst_reg = regul->mask_reset_reg; 707 cfg->mrst_value = BIT(regul->mask_reset_pos); 708 cfg->mrst_mask = LDO_BUCK_RESET_MASK << regul->mask_reset_pos; 709 710 return 0; 711 } 712 713 int stpmic1_bo_mask_reset_unpg(struct stpmic1_bo_cfg *cfg) 714 { 715 return stpmic1_register_update(cfg->mrst_reg, cfg->mrst_value, 716 cfg->mrst_mask); 717 } 718 719 int stpmic1_regulator_voltage_get(const char *name) 720 { 721 const struct regul_struct *regul = get_regulator_data(name); 722 uint8_t value = 0; 723 uint8_t mask = 0; 724 725 /* Voltage can be set for buck<N> or ldo<N> (except ldo4) regulators */ 726 if (!strcmp(name, "buck")) 727 mask = BUCK_VOLTAGE_MASK; 728 else if (!strcmp(name, "ldo") && strcmp(name, "ldo4")) 729 mask = LDO_VOLTAGE_MASK; 730 else 731 return 0; 732 733 if (stpmic1_register_read(regul->control_reg, &value)) 734 return -1; 735 736 value = (value & mask) >> LDO_BUCK_VOLTAGE_SHIFT; 737 738 if (value > regul->voltage_table_size) 739 return -1; 740 741 return regul->voltage_table[value]; 742 } 743 744 int stpmic1_lp_copy_reg(const char *name) 745 { 746 const struct regul_struct *regul = get_regulator_data(name); 747 uint8_t val = 0; 748 int status = 0; 749 750 status = stpmic1_register_read(regul->control_reg, &val); 751 if (status) 752 return status; 753 754 return stpmic1_register_write(regul->low_power_reg, val); 755 } 756 757 int stpmic1_lp_cfg(const char *name, struct stpmic1_lp_cfg *cfg) 758 { 759 const struct regul_struct *regul = get_regulator_data(name); 760 761 cfg->ctrl_reg = regul->control_reg; 762 cfg->lp_reg = regul->low_power_reg; 763 764 return 0; 765 } 766 767 int stpmic1_lp_load_unpg(struct stpmic1_lp_cfg *cfg) 768 { 769 uint8_t val = 0; 770 int status = 0; 771 772 status = stpmic1_register_read(cfg->ctrl_reg, &val); 773 if (!status) 774 status = stpmic1_register_write(cfg->lp_reg, val); 775 776 return status; 777 } 778 779 int stpmic1_lp_reg_on_off(const char *name, uint8_t enable) 780 { 781 const struct regul_struct *regul = get_regulator_data(name); 782 783 return stpmic1_register_update(regul->low_power_reg, enable, 784 LDO_BUCK_ENABLE_MASK); 785 } 786 787 int stpmic1_lp_on_off_unpg(struct stpmic1_lp_cfg *cfg, int enable) 788 { 789 assert(enable == 0 || enable == 1); 790 return stpmic1_register_update(cfg->lp_reg, enable, 791 LDO_BUCK_ENABLE_MASK); 792 } 793 794 int stpmic1_lp_set_mode(const char *name, uint8_t hplp) 795 { 796 const struct regul_struct *regul = get_regulator_data(name); 797 798 return stpmic1_register_update(regul->low_power_reg, 799 hplp << LDO_BUCK_HPLP_POS, 800 BIT(LDO_BUCK_HPLP_POS)); 801 } 802 803 int stpmic1_lp_mode_unpg(struct stpmic1_lp_cfg *cfg, unsigned int mode) 804 { 805 assert(mode == 0 || mode == 1); 806 return stpmic1_register_update(cfg->lp_reg, 807 mode << LDO_BUCK_HPLP_POS, 808 BIT(LDO_BUCK_HPLP_POS)); 809 } 810 811 int stpmic1_lp_set_voltage(const char *name, uint16_t millivolts) 812 { 813 uint8_t voltage_index = voltage_to_index(name, millivolts); 814 const struct regul_struct *regul = get_regulator_data(name); 815 uint8_t mask = 0; 816 817 /* Voltage can be set for buck<N> or ldo<N> (except ldo4) regulators */ 818 if (!strcmp(name, "buck")) 819 mask = BUCK_VOLTAGE_MASK; 820 else if (!strcmp(name, "ldo") && strcmp(name, "ldo4")) 821 mask = LDO_VOLTAGE_MASK; 822 else 823 return 0; 824 825 return stpmic1_register_update(regul->low_power_reg, voltage_index << 2, 826 mask); 827 } 828 829 /* Returns 1 if no configuration are expected applied at runtime, 0 otherwise */ 830 int stpmic1_lp_voltage_cfg(const char *name, uint16_t millivolts, 831 struct stpmic1_lp_cfg *cfg) 832 833 { 834 uint8_t voltage_index = voltage_to_index(name, millivolts); 835 uint8_t mask = 0; 836 837 /* Voltage can be set for buck<N> or ldo<N> (except ldo4) regulators */ 838 if (!strcmp(name, "buck")) 839 mask = BUCK_VOLTAGE_MASK; 840 else if (!strcmp(name, "ldo") && strcmp(name, "ldo4")) 841 mask = LDO_VOLTAGE_MASK; 842 else 843 return 1; 844 845 assert(cfg->lp_reg == get_regulator_data(name)->low_power_reg); 846 cfg->value = voltage_index << 2; 847 cfg->mask = mask; 848 849 return 0; 850 } 851 852 int stpmic1_lp_voltage_unpg(struct stpmic1_lp_cfg *cfg) 853 { 854 return stpmic1_register_update(cfg->lp_reg, cfg->value, cfg->mask); 855 } 856 857 int stpmic1_register_read(uint8_t register_id, uint8_t *value) 858 { 859 struct i2c_handle_s *i2c = pmic_i2c_handle; 860 861 return stm32_i2c_read_write_membyte(i2c, pmic_i2c_addr, 862 register_id, value, 863 false /* !write */); 864 } 865 866 int stpmic1_register_write(uint8_t register_id, uint8_t value) 867 { 868 struct i2c_handle_s *i2c = pmic_i2c_handle; 869 uint8_t val = value; 870 871 return stm32_i2c_read_write_membyte(i2c, pmic_i2c_addr, 872 register_id, &val, 873 true /* write */); 874 } 875 876 int stpmic1_register_update(uint8_t register_id, uint8_t value, uint8_t mask) 877 { 878 int status = 0; 879 uint8_t val = 0; 880 881 status = stpmic1_register_read(register_id, &val); 882 if (status) 883 return status; 884 885 val = (val & ~mask) | (value & mask); 886 887 return stpmic1_register_write(register_id, val); 888 } 889 890 void stpmic1_bind_i2c(struct i2c_handle_s *i2c_handle, uint16_t i2c_addr) 891 { 892 pmic_i2c_handle = i2c_handle; 893 pmic_i2c_addr = i2c_addr; 894 } 895 896 void stpmic1_dump_regulators(void) 897 { 898 size_t i = 0; 899 char __maybe_unused const *name = NULL; 900 901 for (i = 0; i < ARRAY_SIZE(regulators_table); i++) { 902 if (!regulators_table[i].control_reg) 903 continue; 904 905 name = regulators_table[i].dt_node_name; 906 DMSG("PMIC regul %s: %sable, %dmV", 907 name, stpmic1_is_regulator_enabled(name) ? "en" : "dis", 908 stpmic1_regulator_voltage_get(name)); 909 } 910 } 911 912 int stpmic1_get_version(unsigned long *version) 913 { 914 uint8_t read_val = 0; 915 916 if (stpmic1_register_read(VERSION_STATUS_REG, &read_val)) 917 return -1; 918 919 *version = read_val; 920 return 0; 921 } 922