1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * tps65910.c -- TI tps65910 4 * 5 * Copyright 2010 Texas Instruments Inc. 6 * 7 * Author: Graeme Gregory <gg@slimlogic.co.uk> 8 * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> 9 */ 10 11#include <linux/kernel.h> 12#include <linux/module.h> 13#include <linux/init.h> 14#include <linux/err.h> 15#include <linux/of.h> 16#include <linux/platform_device.h> 17#include <linux/regulator/driver.h> 18#include <linux/regulator/machine.h> 19#include <linux/slab.h> 20#include <linux/gpio.h> 21#include <linux/mfd/tps65910.h> 22#include <linux/regulator/of_regulator.h> 23 24#define TPS65910_SUPPLY_STATE_ENABLED 0x1 25#define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \ 26 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \ 27 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \ 28 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) 29 30/* supported VIO voltages in microvolts */ 31static const unsigned int VIO_VSEL_table[] = { 32 1500000, 1800000, 2500000, 3300000, 33}; 34 35/* VSEL tables for TPS65910 specific LDOs and dcdc's */ 36 37/* supported VRTC voltages in microvolts */ 38static const unsigned int VRTC_VSEL_table[] = { 39 1800000, 40}; 41 42/* supported VDD3 voltages in microvolts */ 43static const unsigned int VDD3_VSEL_table[] = { 44 5000000, 45}; 46 47/* supported VDIG1 voltages in microvolts */ 48static const unsigned int VDIG1_VSEL_table[] = { 49 1200000, 1500000, 1800000, 2700000, 50}; 51 52/* supported VDIG2 voltages in microvolts */ 53static const unsigned int VDIG2_VSEL_table[] = { 54 1000000, 1100000, 1200000, 1800000, 55}; 56 57/* supported VPLL voltages in microvolts */ 58static const unsigned int VPLL_VSEL_table[] = { 59 1000000, 1100000, 1800000, 2500000, 60}; 61 62/* supported VDAC voltages in microvolts */ 63static const unsigned int VDAC_VSEL_table[] = { 64 1800000, 2600000, 2800000, 2850000, 65}; 66 67/* supported VAUX1 voltages in microvolts */ 68static const unsigned int VAUX1_VSEL_table[] = { 69 1800000, 2500000, 2800000, 2850000, 70}; 71 72/* supported VAUX2 voltages in microvolts */ 73static const unsigned int VAUX2_VSEL_table[] = { 74 1800000, 2800000, 2900000, 3300000, 75}; 76 77/* supported VAUX33 voltages in microvolts */ 78static const unsigned int VAUX33_VSEL_table[] = { 79 1800000, 2000000, 2800000, 3300000, 80}; 81 82/* supported VMMC voltages in microvolts */ 83static const unsigned int VMMC_VSEL_table[] = { 84 1800000, 2800000, 3000000, 3300000, 85}; 86 87/* supported BBCH voltages in microvolts */ 88static const unsigned int VBB_VSEL_table[] = { 89 3000000, 2520000, 3150000, 5000000, 90}; 91 92struct tps_info { 93 const char *name; 94 const char *vin_name; 95 u8 n_voltages; 96 const unsigned int *voltage_table; 97 int enable_time_us; 98}; 99 100static struct tps_info tps65910_regs[] = { 101 { 102 .name = "vrtc", 103 .vin_name = "vcc7", 104 .n_voltages = ARRAY_SIZE(VRTC_VSEL_table), 105 .voltage_table = VRTC_VSEL_table, 106 .enable_time_us = 2200, 107 }, 108 { 109 .name = "vio", 110 .vin_name = "vccio", 111 .n_voltages = ARRAY_SIZE(VIO_VSEL_table), 112 .voltage_table = VIO_VSEL_table, 113 .enable_time_us = 350, 114 }, 115 { 116 .name = "vdd1", 117 .vin_name = "vcc1", 118 .enable_time_us = 350, 119 }, 120 { 121 .name = "vdd2", 122 .vin_name = "vcc2", 123 .enable_time_us = 350, 124 }, 125 { 126 .name = "vdd3", 127 .n_voltages = ARRAY_SIZE(VDD3_VSEL_table), 128 .voltage_table = VDD3_VSEL_table, 129 .enable_time_us = 200, 130 }, 131 { 132 .name = "vdig1", 133 .vin_name = "vcc6", 134 .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table), 135 .voltage_table = VDIG1_VSEL_table, 136 .enable_time_us = 100, 137 }, 138 { 139 .name = "vdig2", 140 .vin_name = "vcc6", 141 .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table), 142 .voltage_table = VDIG2_VSEL_table, 143 .enable_time_us = 100, 144 }, 145 { 146 .name = "vpll", 147 .vin_name = "vcc5", 148 .n_voltages = ARRAY_SIZE(VPLL_VSEL_table), 149 .voltage_table = VPLL_VSEL_table, 150 .enable_time_us = 100, 151 }, 152 { 153 .name = "vdac", 154 .vin_name = "vcc5", 155 .n_voltages = ARRAY_SIZE(VDAC_VSEL_table), 156 .voltage_table = VDAC_VSEL_table, 157 .enable_time_us = 100, 158 }, 159 { 160 .name = "vaux1", 161 .vin_name = "vcc4", 162 .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table), 163 .voltage_table = VAUX1_VSEL_table, 164 .enable_time_us = 100, 165 }, 166 { 167 .name = "vaux2", 168 .vin_name = "vcc4", 169 .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table), 170 .voltage_table = VAUX2_VSEL_table, 171 .enable_time_us = 100, 172 }, 173 { 174 .name = "vaux33", 175 .vin_name = "vcc3", 176 .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table), 177 .voltage_table = VAUX33_VSEL_table, 178 .enable_time_us = 100, 179 }, 180 { 181 .name = "vmmc", 182 .vin_name = "vcc3", 183 .n_voltages = ARRAY_SIZE(VMMC_VSEL_table), 184 .voltage_table = VMMC_VSEL_table, 185 .enable_time_us = 100, 186 }, 187 { 188 .name = "vbb", 189 .vin_name = "vcc7", 190 .n_voltages = ARRAY_SIZE(VBB_VSEL_table), 191 .voltage_table = VBB_VSEL_table, 192 }, 193}; 194 195static struct tps_info tps65911_regs[] = { 196 { 197 .name = "vrtc", 198 .vin_name = "vcc7", 199 .enable_time_us = 2200, 200 }, 201 { 202 .name = "vio", 203 .vin_name = "vccio", 204 .n_voltages = ARRAY_SIZE(VIO_VSEL_table), 205 .voltage_table = VIO_VSEL_table, 206 .enable_time_us = 350, 207 }, 208 { 209 .name = "vdd1", 210 .vin_name = "vcc1", 211 .n_voltages = 0x4C, 212 .enable_time_us = 350, 213 }, 214 { 215 .name = "vdd2", 216 .vin_name = "vcc2", 217 .n_voltages = 0x4C, 218 .enable_time_us = 350, 219 }, 220 { 221 .name = "vddctrl", 222 .n_voltages = 0x44, 223 .enable_time_us = 900, 224 }, 225 { 226 .name = "ldo1", 227 .vin_name = "vcc6", 228 .n_voltages = 0x33, 229 .enable_time_us = 420, 230 }, 231 { 232 .name = "ldo2", 233 .vin_name = "vcc6", 234 .n_voltages = 0x33, 235 .enable_time_us = 420, 236 }, 237 { 238 .name = "ldo3", 239 .vin_name = "vcc5", 240 .n_voltages = 0x1A, 241 .enable_time_us = 230, 242 }, 243 { 244 .name = "ldo4", 245 .vin_name = "vcc5", 246 .n_voltages = 0x33, 247 .enable_time_us = 230, 248 }, 249 { 250 .name = "ldo5", 251 .vin_name = "vcc4", 252 .n_voltages = 0x1A, 253 .enable_time_us = 230, 254 }, 255 { 256 .name = "ldo6", 257 .vin_name = "vcc3", 258 .n_voltages = 0x1A, 259 .enable_time_us = 230, 260 }, 261 { 262 .name = "ldo7", 263 .vin_name = "vcc3", 264 .n_voltages = 0x1A, 265 .enable_time_us = 230, 266 }, 267 { 268 .name = "ldo8", 269 .vin_name = "vcc3", 270 .n_voltages = 0x1A, 271 .enable_time_us = 230, 272 }, 273}; 274 275#define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits)) 276static unsigned int tps65910_ext_sleep_control[] = { 277 0, 278 EXT_CONTROL_REG_BITS(VIO, 1, 0), 279 EXT_CONTROL_REG_BITS(VDD1, 1, 1), 280 EXT_CONTROL_REG_BITS(VDD2, 1, 2), 281 EXT_CONTROL_REG_BITS(VDD3, 1, 3), 282 EXT_CONTROL_REG_BITS(VDIG1, 0, 1), 283 EXT_CONTROL_REG_BITS(VDIG2, 0, 2), 284 EXT_CONTROL_REG_BITS(VPLL, 0, 6), 285 EXT_CONTROL_REG_BITS(VDAC, 0, 7), 286 EXT_CONTROL_REG_BITS(VAUX1, 0, 3), 287 EXT_CONTROL_REG_BITS(VAUX2, 0, 4), 288 EXT_CONTROL_REG_BITS(VAUX33, 0, 5), 289 EXT_CONTROL_REG_BITS(VMMC, 0, 0), 290}; 291 292static unsigned int tps65911_ext_sleep_control[] = { 293 0, 294 EXT_CONTROL_REG_BITS(VIO, 1, 0), 295 EXT_CONTROL_REG_BITS(VDD1, 1, 1), 296 EXT_CONTROL_REG_BITS(VDD2, 1, 2), 297 EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3), 298 EXT_CONTROL_REG_BITS(LDO1, 0, 1), 299 EXT_CONTROL_REG_BITS(LDO2, 0, 2), 300 EXT_CONTROL_REG_BITS(LDO3, 0, 7), 301 EXT_CONTROL_REG_BITS(LDO4, 0, 6), 302 EXT_CONTROL_REG_BITS(LDO5, 0, 3), 303 EXT_CONTROL_REG_BITS(LDO6, 0, 0), 304 EXT_CONTROL_REG_BITS(LDO7, 0, 5), 305 EXT_CONTROL_REG_BITS(LDO8, 0, 4), 306}; 307 308struct tps65910_reg { 309 struct regulator_desc *desc; 310 struct tps65910 *mfd; 311 struct regulator_dev **rdev; 312 struct tps_info **info; 313 int num_regulators; 314 int mode; 315 int (*get_ctrl_reg)(int); 316 unsigned int *ext_sleep_control; 317 unsigned int board_ext_control[TPS65910_NUM_REGS]; 318}; 319 320static int tps65910_get_ctrl_register(int id) 321{ 322 switch (id) { 323 case TPS65910_REG_VRTC: 324 return TPS65910_VRTC; 325 case TPS65910_REG_VIO: 326 return TPS65910_VIO; 327 case TPS65910_REG_VDD1: 328 return TPS65910_VDD1; 329 case TPS65910_REG_VDD2: 330 return TPS65910_VDD2; 331 case TPS65910_REG_VDD3: 332 return TPS65910_VDD3; 333 case TPS65910_REG_VDIG1: 334 return TPS65910_VDIG1; 335 case TPS65910_REG_VDIG2: 336 return TPS65910_VDIG2; 337 case TPS65910_REG_VPLL: 338 return TPS65910_VPLL; 339 case TPS65910_REG_VDAC: 340 return TPS65910_VDAC; 341 case TPS65910_REG_VAUX1: 342 return TPS65910_VAUX1; 343 case TPS65910_REG_VAUX2: 344 return TPS65910_VAUX2; 345 case TPS65910_REG_VAUX33: 346 return TPS65910_VAUX33; 347 case TPS65910_REG_VMMC: 348 return TPS65910_VMMC; 349 case TPS65910_REG_VBB: 350 return TPS65910_BBCH; 351 default: 352 return -EINVAL; 353 } 354} 355 356static int tps65911_get_ctrl_register(int id) 357{ 358 switch (id) { 359 case TPS65910_REG_VRTC: 360 return TPS65910_VRTC; 361 case TPS65910_REG_VIO: 362 return TPS65910_VIO; 363 case TPS65910_REG_VDD1: 364 return TPS65910_VDD1; 365 case TPS65910_REG_VDD2: 366 return TPS65910_VDD2; 367 case TPS65911_REG_VDDCTRL: 368 return TPS65911_VDDCTRL; 369 case TPS65911_REG_LDO1: 370 return TPS65911_LDO1; 371 case TPS65911_REG_LDO2: 372 return TPS65911_LDO2; 373 case TPS65911_REG_LDO3: 374 return TPS65911_LDO3; 375 case TPS65911_REG_LDO4: 376 return TPS65911_LDO4; 377 case TPS65911_REG_LDO5: 378 return TPS65911_LDO5; 379 case TPS65911_REG_LDO6: 380 return TPS65911_LDO6; 381 case TPS65911_REG_LDO7: 382 return TPS65911_LDO7; 383 case TPS65911_REG_LDO8: 384 return TPS65911_LDO8; 385 default: 386 return -EINVAL; 387 } 388} 389 390static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode) 391{ 392 struct tps65910_reg *pmic = rdev_get_drvdata(dev); 393 struct regmap *regmap = rdev_get_regmap(dev); 394 int reg, id = rdev_get_id(dev); 395 396 reg = pmic->get_ctrl_reg(id); 397 if (reg < 0) 398 return reg; 399 400 switch (mode) { 401 case REGULATOR_MODE_NORMAL: 402 return regmap_update_bits(regmap, reg, 403 LDO_ST_MODE_BIT | LDO_ST_ON_BIT, 404 LDO_ST_ON_BIT); 405 case REGULATOR_MODE_IDLE: 406 return regmap_set_bits(regmap, reg, 407 LDO_ST_ON_BIT | LDO_ST_MODE_BIT); 408 case REGULATOR_MODE_STANDBY: 409 return regmap_clear_bits(regmap, reg, LDO_ST_ON_BIT); 410 } 411 412 return -EINVAL; 413} 414 415static unsigned int tps65910_get_mode(struct regulator_dev *dev) 416{ 417 struct tps65910_reg *pmic = rdev_get_drvdata(dev); 418 struct regmap *regmap = rdev_get_regmap(dev); 419 int ret, reg, value, id = rdev_get_id(dev); 420 421 reg = pmic->get_ctrl_reg(id); 422 if (reg < 0) 423 return reg; 424 425 ret = regmap_read(regmap, reg, &value); 426 if (ret < 0) 427 return ret; 428 429 if (!(value & LDO_ST_ON_BIT)) 430 return REGULATOR_MODE_STANDBY; 431 else if (value & LDO_ST_MODE_BIT) 432 return REGULATOR_MODE_IDLE; 433 else 434 return REGULATOR_MODE_NORMAL; 435} 436 437static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev) 438{ 439 struct regmap *regmap = rdev_get_regmap(dev); 440 int ret, id = rdev_get_id(dev); 441 int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0; 442 443 switch (id) { 444 case TPS65910_REG_VDD1: 445 ret = regmap_read(regmap, TPS65910_VDD1_OP, &opvsel); 446 if (ret < 0) 447 return ret; 448 ret = regmap_read(regmap, TPS65910_VDD1, &mult); 449 if (ret < 0) 450 return ret; 451 mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT; 452 ret = regmap_read(regmap, TPS65910_VDD1_SR, &srvsel); 453 if (ret < 0) 454 return ret; 455 sr = opvsel & VDD1_OP_CMD_MASK; 456 opvsel &= VDD1_OP_SEL_MASK; 457 srvsel &= VDD1_SR_SEL_MASK; 458 vselmax = 75; 459 break; 460 case TPS65910_REG_VDD2: 461 ret = regmap_read(regmap, TPS65910_VDD2_OP, &opvsel); 462 if (ret < 0) 463 return ret; 464 ret = regmap_read(regmap, TPS65910_VDD2, &mult); 465 if (ret < 0) 466 return ret; 467 mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT; 468 ret = regmap_read(regmap, TPS65910_VDD2_SR, &srvsel); 469 if (ret < 0) 470 return ret; 471 sr = opvsel & VDD2_OP_CMD_MASK; 472 opvsel &= VDD2_OP_SEL_MASK; 473 srvsel &= VDD2_SR_SEL_MASK; 474 vselmax = 75; 475 break; 476 case TPS65911_REG_VDDCTRL: 477 ret = regmap_read(regmap, TPS65911_VDDCTRL_OP, &opvsel); 478 if (ret < 0) 479 return ret; 480 ret = regmap_read(regmap, TPS65911_VDDCTRL_SR, &srvsel); 481 if (ret < 0) 482 return ret; 483 sr = opvsel & VDDCTRL_OP_CMD_MASK; 484 opvsel &= VDDCTRL_OP_SEL_MASK; 485 srvsel &= VDDCTRL_SR_SEL_MASK; 486 vselmax = 64; 487 break; 488 } 489 490 /* multiplier 0 == 1 but 2,3 normal */ 491 if (!mult) 492 mult = 1; 493 494 if (sr) { 495 /* normalise to valid range */ 496 if (srvsel < 3) 497 srvsel = 3; 498 if (srvsel > vselmax) 499 srvsel = vselmax; 500 return srvsel - 3; 501 } else { 502 503 /* normalise to valid range*/ 504 if (opvsel < 3) 505 opvsel = 3; 506 if (opvsel > vselmax) 507 opvsel = vselmax; 508 return opvsel - 3; 509 } 510 return -EINVAL; 511} 512 513static int tps65910_get_voltage_sel(struct regulator_dev *dev) 514{ 515 struct tps65910_reg *pmic = rdev_get_drvdata(dev); 516 struct regmap *regmap = rdev_get_regmap(dev); 517 int ret, reg, value, id = rdev_get_id(dev); 518 519 reg = pmic->get_ctrl_reg(id); 520 if (reg < 0) 521 return reg; 522 523 ret = regmap_read(regmap, reg, &value); 524 if (ret < 0) 525 return ret; 526 527 switch (id) { 528 case TPS65910_REG_VIO: 529 case TPS65910_REG_VDIG1: 530 case TPS65910_REG_VDIG2: 531 case TPS65910_REG_VPLL: 532 case TPS65910_REG_VDAC: 533 case TPS65910_REG_VAUX1: 534 case TPS65910_REG_VAUX2: 535 case TPS65910_REG_VAUX33: 536 case TPS65910_REG_VMMC: 537 value &= LDO_SEL_MASK; 538 value >>= LDO_SEL_SHIFT; 539 break; 540 case TPS65910_REG_VBB: 541 value &= BBCH_BBSEL_MASK; 542 value >>= BBCH_BBSEL_SHIFT; 543 break; 544 default: 545 return -EINVAL; 546 } 547 548 return value; 549} 550 551static int tps65910_get_voltage_vdd3(struct regulator_dev *dev) 552{ 553 return dev->desc->volt_table[0]; 554} 555 556static int tps65911_get_voltage_sel(struct regulator_dev *dev) 557{ 558 struct tps65910_reg *pmic = rdev_get_drvdata(dev); 559 struct regmap *regmap = rdev_get_regmap(dev); 560 int ret, id = rdev_get_id(dev); 561 unsigned int value, reg; 562 563 reg = pmic->get_ctrl_reg(id); 564 565 ret = regmap_read(regmap, reg, &value); 566 if (ret < 0) 567 return ret; 568 569 switch (id) { 570 case TPS65911_REG_LDO1: 571 case TPS65911_REG_LDO2: 572 case TPS65911_REG_LDO4: 573 value &= LDO1_SEL_MASK; 574 value >>= LDO_SEL_SHIFT; 575 break; 576 case TPS65911_REG_LDO3: 577 case TPS65911_REG_LDO5: 578 case TPS65911_REG_LDO6: 579 case TPS65911_REG_LDO7: 580 case TPS65911_REG_LDO8: 581 value &= LDO3_SEL_MASK; 582 value >>= LDO_SEL_SHIFT; 583 break; 584 case TPS65910_REG_VIO: 585 value &= LDO_SEL_MASK; 586 value >>= LDO_SEL_SHIFT; 587 break; 588 default: 589 return -EINVAL; 590 } 591 592 return value; 593} 594 595static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev, 596 unsigned selector) 597{ 598 struct regmap *regmap = rdev_get_regmap(dev); 599 int id = rdev_get_id(dev), vsel; 600 int dcdc_mult = 0; 601 602 switch (id) { 603 case TPS65910_REG_VDD1: 604 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1; 605 if (dcdc_mult == 1) 606 dcdc_mult--; 607 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3; 608 609 regmap_update_bits(regmap, TPS65910_VDD1, VDD1_VGAIN_SEL_MASK, 610 dcdc_mult << VDD1_VGAIN_SEL_SHIFT); 611 regmap_write(regmap, TPS65910_VDD1_OP, vsel); 612 break; 613 case TPS65910_REG_VDD2: 614 dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1; 615 if (dcdc_mult == 1) 616 dcdc_mult--; 617 vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3; 618 619 regmap_update_bits(regmap, TPS65910_VDD2, VDD1_VGAIN_SEL_MASK, 620 dcdc_mult << VDD2_VGAIN_SEL_SHIFT); 621 regmap_write(regmap, TPS65910_VDD2_OP, vsel); 622 break; 623 case TPS65911_REG_VDDCTRL: 624 vsel = selector + 3; 625 regmap_write(regmap, TPS65911_VDDCTRL_OP, vsel); 626 break; 627 } 628 629 return 0; 630} 631 632static int tps65910_set_voltage_sel(struct regulator_dev *dev, 633 unsigned selector) 634{ 635 struct tps65910_reg *pmic = rdev_get_drvdata(dev); 636 struct regmap *regmap = rdev_get_regmap(dev); 637 int reg, id = rdev_get_id(dev); 638 639 reg = pmic->get_ctrl_reg(id); 640 if (reg < 0) 641 return reg; 642 643 switch (id) { 644 case TPS65910_REG_VIO: 645 case TPS65910_REG_VDIG1: 646 case TPS65910_REG_VDIG2: 647 case TPS65910_REG_VPLL: 648 case TPS65910_REG_VDAC: 649 case TPS65910_REG_VAUX1: 650 case TPS65910_REG_VAUX2: 651 case TPS65910_REG_VAUX33: 652 case TPS65910_REG_VMMC: 653 return regmap_update_bits(regmap, reg, LDO_SEL_MASK, 654 selector << LDO_SEL_SHIFT); 655 case TPS65910_REG_VBB: 656 return regmap_update_bits(regmap, reg, BBCH_BBSEL_MASK, 657 selector << BBCH_BBSEL_SHIFT); 658 } 659 660 return -EINVAL; 661} 662 663static int tps65911_set_voltage_sel(struct regulator_dev *dev, 664 unsigned selector) 665{ 666 struct tps65910_reg *pmic = rdev_get_drvdata(dev); 667 struct regmap *regmap = rdev_get_regmap(dev); 668 int reg, id = rdev_get_id(dev); 669 670 reg = pmic->get_ctrl_reg(id); 671 if (reg < 0) 672 return reg; 673 674 switch (id) { 675 case TPS65911_REG_LDO1: 676 case TPS65911_REG_LDO2: 677 case TPS65911_REG_LDO4: 678 return regmap_update_bits(regmap, reg, LDO1_SEL_MASK, 679 selector << LDO_SEL_SHIFT); 680 case TPS65911_REG_LDO3: 681 case TPS65911_REG_LDO5: 682 case TPS65911_REG_LDO6: 683 case TPS65911_REG_LDO7: 684 case TPS65911_REG_LDO8: 685 return regmap_update_bits(regmap, reg, LDO3_SEL_MASK, 686 selector << LDO_SEL_SHIFT); 687 case TPS65910_REG_VIO: 688 return regmap_update_bits(regmap, reg, LDO_SEL_MASK, 689 selector << LDO_SEL_SHIFT); 690 case TPS65910_REG_VBB: 691 return regmap_update_bits(regmap, reg, BBCH_BBSEL_MASK, 692 selector << BBCH_BBSEL_SHIFT); 693 } 694 695 return -EINVAL; 696} 697 698 699static int tps65910_list_voltage_dcdc(struct regulator_dev *dev, 700 unsigned selector) 701{ 702 int volt, mult = 1, id = rdev_get_id(dev); 703 704 switch (id) { 705 case TPS65910_REG_VDD1: 706 case TPS65910_REG_VDD2: 707 mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1; 708 volt = VDD1_2_MIN_VOLT + 709 (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET; 710 break; 711 case TPS65911_REG_VDDCTRL: 712 volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET); 713 break; 714 default: 715 BUG(); 716 return -EINVAL; 717 } 718 719 return volt * 100 * mult; 720} 721 722static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector) 723{ 724 struct tps65910_reg *pmic = rdev_get_drvdata(dev); 725 int step_mv = 0, id = rdev_get_id(dev); 726 727 switch (id) { 728 case TPS65911_REG_LDO1: 729 case TPS65911_REG_LDO2: 730 case TPS65911_REG_LDO4: 731 /* The first 5 values of the selector correspond to 1V */ 732 if (selector < 5) 733 selector = 0; 734 else 735 selector -= 4; 736 737 step_mv = 50; 738 break; 739 case TPS65911_REG_LDO3: 740 case TPS65911_REG_LDO5: 741 case TPS65911_REG_LDO6: 742 case TPS65911_REG_LDO7: 743 case TPS65911_REG_LDO8: 744 /* The first 3 values of the selector correspond to 1V */ 745 if (selector < 3) 746 selector = 0; 747 else 748 selector -= 2; 749 750 step_mv = 100; 751 break; 752 case TPS65910_REG_VIO: 753 return pmic->info[id]->voltage_table[selector]; 754 default: 755 return -EINVAL; 756 } 757 758 return (LDO_MIN_VOLT + selector * step_mv) * 1000; 759} 760 761/* Regulator ops (except VRTC) */ 762static const struct regulator_ops tps65910_ops_dcdc = { 763 .is_enabled = regulator_is_enabled_regmap, 764 .enable = regulator_enable_regmap, 765 .disable = regulator_disable_regmap, 766 .set_mode = tps65910_set_mode, 767 .get_mode = tps65910_get_mode, 768 .get_voltage_sel = tps65910_get_voltage_dcdc_sel, 769 .set_voltage_sel = tps65910_set_voltage_dcdc_sel, 770 .set_voltage_time_sel = regulator_set_voltage_time_sel, 771 .list_voltage = tps65910_list_voltage_dcdc, 772 .map_voltage = regulator_map_voltage_ascend, 773}; 774 775static const struct regulator_ops tps65910_ops_vdd3 = { 776 .is_enabled = regulator_is_enabled_regmap, 777 .enable = regulator_enable_regmap, 778 .disable = regulator_disable_regmap, 779 .set_mode = tps65910_set_mode, 780 .get_mode = tps65910_get_mode, 781 .get_voltage = tps65910_get_voltage_vdd3, 782 .list_voltage = regulator_list_voltage_table, 783 .map_voltage = regulator_map_voltage_ascend, 784}; 785 786static const struct regulator_ops tps65910_ops_vbb = { 787 .is_enabled = regulator_is_enabled_regmap, 788 .enable = regulator_enable_regmap, 789 .disable = regulator_disable_regmap, 790 .set_mode = tps65910_set_mode, 791 .get_mode = tps65910_get_mode, 792 .get_voltage_sel = tps65910_get_voltage_sel, 793 .set_voltage_sel = tps65910_set_voltage_sel, 794 .list_voltage = regulator_list_voltage_table, 795 .map_voltage = regulator_map_voltage_iterate, 796}; 797 798static const struct regulator_ops tps65910_ops = { 799 .is_enabled = regulator_is_enabled_regmap, 800 .enable = regulator_enable_regmap, 801 .disable = regulator_disable_regmap, 802 .set_mode = tps65910_set_mode, 803 .get_mode = tps65910_get_mode, 804 .get_voltage_sel = tps65910_get_voltage_sel, 805 .set_voltage_sel = tps65910_set_voltage_sel, 806 .list_voltage = regulator_list_voltage_table, 807 .map_voltage = regulator_map_voltage_ascend, 808}; 809 810static const struct regulator_ops tps65911_ops = { 811 .is_enabled = regulator_is_enabled_regmap, 812 .enable = regulator_enable_regmap, 813 .disable = regulator_disable_regmap, 814 .set_mode = tps65910_set_mode, 815 .get_mode = tps65910_get_mode, 816 .get_voltage_sel = tps65911_get_voltage_sel, 817 .set_voltage_sel = tps65911_set_voltage_sel, 818 .list_voltage = tps65911_list_voltage, 819 .map_voltage = regulator_map_voltage_ascend, 820}; 821 822static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic, 823 int id, int ext_sleep_config) 824{ 825 struct tps65910 *mfd = pmic->mfd; 826 u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF; 827 u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF); 828 int ret; 829 830 /* 831 * Regulator can not be control from multiple external input EN1, EN2 832 * and EN3 together. 833 */ 834 if (ext_sleep_config & EXT_SLEEP_CONTROL) { 835 int en_count; 836 en_count = ((ext_sleep_config & 837 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0); 838 en_count += ((ext_sleep_config & 839 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0); 840 en_count += ((ext_sleep_config & 841 TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0); 842 en_count += ((ext_sleep_config & 843 TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0); 844 if (en_count > 1) { 845 dev_err(mfd->dev, 846 "External sleep control flag is not proper\n"); 847 return -EINVAL; 848 } 849 } 850 851 pmic->board_ext_control[id] = ext_sleep_config; 852 853 /* External EN1 control */ 854 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) 855 ret = regmap_set_bits(mfd->regmap, 856 TPS65910_EN1_LDO_ASS + regoffs, bit_pos); 857 else 858 ret = regmap_clear_bits(mfd->regmap, 859 TPS65910_EN1_LDO_ASS + regoffs, bit_pos); 860 if (ret < 0) { 861 dev_err(mfd->dev, 862 "Error in configuring external control EN1\n"); 863 return ret; 864 } 865 866 /* External EN2 control */ 867 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) 868 ret = regmap_set_bits(mfd->regmap, 869 TPS65910_EN2_LDO_ASS + regoffs, bit_pos); 870 else 871 ret = regmap_clear_bits(mfd->regmap, 872 TPS65910_EN2_LDO_ASS + regoffs, bit_pos); 873 if (ret < 0) { 874 dev_err(mfd->dev, 875 "Error in configuring external control EN2\n"); 876 return ret; 877 } 878 879 /* External EN3 control for TPS65910 LDO only */ 880 if ((tps65910_chip_id(mfd) == TPS65910) && 881 (id >= TPS65910_REG_VDIG1)) { 882 if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) 883 ret = regmap_set_bits(mfd->regmap, 884 TPS65910_EN3_LDO_ASS + regoffs, bit_pos); 885 else 886 ret = regmap_clear_bits(mfd->regmap, 887 TPS65910_EN3_LDO_ASS + regoffs, bit_pos); 888 if (ret < 0) { 889 dev_err(mfd->dev, 890 "Error in configuring external control EN3\n"); 891 return ret; 892 } 893 } 894 895 /* Return if no external control is selected */ 896 if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) { 897 /* Clear all sleep controls */ 898 ret = regmap_clear_bits(mfd->regmap, 899 TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos); 900 if (!ret) 901 ret = regmap_clear_bits(mfd->regmap, 902 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos); 903 if (ret < 0) 904 dev_err(mfd->dev, 905 "Error in configuring SLEEP register\n"); 906 return ret; 907 } 908 909 /* 910 * For regulator that has separate operational and sleep register make 911 * sure that operational is used and clear sleep register to turn 912 * regulator off when external control is inactive 913 */ 914 if ((id == TPS65910_REG_VDD1) || 915 (id == TPS65910_REG_VDD2) || 916 ((id == TPS65911_REG_VDDCTRL) && 917 (tps65910_chip_id(mfd) == TPS65911))) { 918 int op_reg_add = pmic->get_ctrl_reg(id) + 1; 919 int sr_reg_add = pmic->get_ctrl_reg(id) + 2; 920 int opvsel, srvsel; 921 922 ret = regmap_read(mfd->regmap, op_reg_add, &opvsel); 923 if (ret < 0) 924 return ret; 925 ret = regmap_read(mfd->regmap, sr_reg_add, &srvsel); 926 if (ret < 0) 927 return ret; 928 929 if (opvsel & VDD1_OP_CMD_MASK) { 930 u8 reg_val = srvsel & VDD1_OP_SEL_MASK; 931 932 ret = regmap_write(mfd->regmap, op_reg_add, reg_val); 933 if (ret < 0) { 934 dev_err(mfd->dev, 935 "Error in configuring op register\n"); 936 return ret; 937 } 938 } 939 ret = regmap_write(mfd->regmap, sr_reg_add, 0); 940 if (ret < 0) { 941 dev_err(mfd->dev, "Error in setting sr register\n"); 942 return ret; 943 } 944 } 945 946 ret = regmap_clear_bits(mfd->regmap, 947 TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos); 948 if (!ret) { 949 if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) 950 ret = regmap_set_bits(mfd->regmap, 951 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos); 952 else 953 ret = regmap_clear_bits(mfd->regmap, 954 TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos); 955 } 956 if (ret < 0) 957 dev_err(mfd->dev, 958 "Error in configuring SLEEP register\n"); 959 960 return ret; 961} 962 963#ifdef CONFIG_OF 964 965static struct of_regulator_match tps65910_matches[] = { 966 { .name = "vrtc", .driver_data = (void *) &tps65910_regs[0] }, 967 { .name = "vio", .driver_data = (void *) &tps65910_regs[1] }, 968 { .name = "vdd1", .driver_data = (void *) &tps65910_regs[2] }, 969 { .name = "vdd2", .driver_data = (void *) &tps65910_regs[3] }, 970 { .name = "vdd3", .driver_data = (void *) &tps65910_regs[4] }, 971 { .name = "vdig1", .driver_data = (void *) &tps65910_regs[5] }, 972 { .name = "vdig2", .driver_data = (void *) &tps65910_regs[6] }, 973 { .name = "vpll", .driver_data = (void *) &tps65910_regs[7] }, 974 { .name = "vdac", .driver_data = (void *) &tps65910_regs[8] }, 975 { .name = "vaux1", .driver_data = (void *) &tps65910_regs[9] }, 976 { .name = "vaux2", .driver_data = (void *) &tps65910_regs[10] }, 977 { .name = "vaux33", .driver_data = (void *) &tps65910_regs[11] }, 978 { .name = "vmmc", .driver_data = (void *) &tps65910_regs[12] }, 979 { .name = "vbb", .driver_data = (void *) &tps65910_regs[13] }, 980}; 981 982static struct of_regulator_match tps65911_matches[] = { 983 { .name = "vrtc", .driver_data = (void *) &tps65911_regs[0] }, 984 { .name = "vio", .driver_data = (void *) &tps65911_regs[1] }, 985 { .name = "vdd1", .driver_data = (void *) &tps65911_regs[2] }, 986 { .name = "vdd2", .driver_data = (void *) &tps65911_regs[3] }, 987 { .name = "vddctrl", .driver_data = (void *) &tps65911_regs[4] }, 988 { .name = "ldo1", .driver_data = (void *) &tps65911_regs[5] }, 989 { .name = "ldo2", .driver_data = (void *) &tps65911_regs[6] }, 990 { .name = "ldo3", .driver_data = (void *) &tps65911_regs[7] }, 991 { .name = "ldo4", .driver_data = (void *) &tps65911_regs[8] }, 992 { .name = "ldo5", .driver_data = (void *) &tps65911_regs[9] }, 993 { .name = "ldo6", .driver_data = (void *) &tps65911_regs[10] }, 994 { .name = "ldo7", .driver_data = (void *) &tps65911_regs[11] }, 995 { .name = "ldo8", .driver_data = (void *) &tps65911_regs[12] }, 996}; 997 998static struct tps65910_board *tps65910_parse_dt_reg_data( 999 struct platform_device *pdev, 1000 struct of_regulator_match **tps65910_reg_matches) 1001{ 1002 struct tps65910_board *pmic_plat_data; 1003 struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent); 1004 struct device_node *np, *regulators; 1005 struct of_regulator_match *matches; 1006 unsigned int prop; 1007 int idx = 0, ret, count; 1008 1009 pmic_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pmic_plat_data), 1010 GFP_KERNEL); 1011 if (!pmic_plat_data) 1012 return NULL; 1013 1014 np = pdev->dev.parent->of_node; 1015 regulators = of_get_child_by_name(np, "regulators"); 1016 if (!regulators) { 1017 dev_err(&pdev->dev, "regulator node not found\n"); 1018 return NULL; 1019 } 1020 1021 switch (tps65910_chip_id(tps65910)) { 1022 case TPS65910: 1023 count = ARRAY_SIZE(tps65910_matches); 1024 matches = tps65910_matches; 1025 break; 1026 case TPS65911: 1027 count = ARRAY_SIZE(tps65911_matches); 1028 matches = tps65911_matches; 1029 break; 1030 default: 1031 of_node_put(regulators); 1032 dev_err(&pdev->dev, "Invalid tps chip version\n"); 1033 return NULL; 1034 } 1035 1036 ret = of_regulator_match(&pdev->dev, regulators, matches, count); 1037 of_node_put(regulators); 1038 if (ret < 0) { 1039 dev_err(&pdev->dev, "Error parsing regulator init data: %d\n", 1040 ret); 1041 return NULL; 1042 } 1043 1044 *tps65910_reg_matches = matches; 1045 1046 for (idx = 0; idx < count; idx++) { 1047 if (!matches[idx].of_node) 1048 continue; 1049 1050 pmic_plat_data->tps65910_pmic_init_data[idx] = 1051 matches[idx].init_data; 1052 1053 ret = of_property_read_u32(matches[idx].of_node, 1054 "ti,regulator-ext-sleep-control", &prop); 1055 if (!ret) 1056 pmic_plat_data->regulator_ext_sleep_control[idx] = prop; 1057 1058 } 1059 1060 return pmic_plat_data; 1061} 1062#else 1063static inline struct tps65910_board *tps65910_parse_dt_reg_data( 1064 struct platform_device *pdev, 1065 struct of_regulator_match **tps65910_reg_matches) 1066{ 1067 *tps65910_reg_matches = NULL; 1068 return NULL; 1069} 1070#endif 1071 1072static int tps65910_probe(struct platform_device *pdev) 1073{ 1074 struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent); 1075 struct regulator_config config = { }; 1076 struct tps_info *info; 1077 struct regulator_dev *rdev; 1078 struct tps65910_reg *pmic; 1079 struct tps65910_board *pmic_plat_data; 1080 struct of_regulator_match *tps65910_reg_matches = NULL; 1081 int i, err; 1082 1083 pmic_plat_data = dev_get_platdata(tps65910->dev); 1084 if (!pmic_plat_data && tps65910->dev->of_node) 1085 pmic_plat_data = tps65910_parse_dt_reg_data(pdev, 1086 &tps65910_reg_matches); 1087 1088 if (!pmic_plat_data) { 1089 dev_err(&pdev->dev, "Platform data not found\n"); 1090 return -EINVAL; 1091 } 1092 1093 pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); 1094 if (!pmic) 1095 return -ENOMEM; 1096 1097 pmic->mfd = tps65910; 1098 platform_set_drvdata(pdev, pmic); 1099 1100 /* Give control of all register to control port */ 1101 err = regmap_set_bits(pmic->mfd->regmap, TPS65910_DEVCTRL, 1102 DEVCTRL_SR_CTL_I2C_SEL_MASK); 1103 if (err < 0) 1104 return err; 1105 1106 switch (tps65910_chip_id(tps65910)) { 1107 case TPS65910: 1108 BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65910_regs)); 1109 pmic->get_ctrl_reg = &tps65910_get_ctrl_register; 1110 pmic->num_regulators = ARRAY_SIZE(tps65910_regs); 1111 pmic->ext_sleep_control = tps65910_ext_sleep_control; 1112 info = tps65910_regs; 1113 /* Work around silicon erratum SWCZ010: output programmed 1114 * voltage level can go higher than expected or crash 1115 * Workaround: use no synchronization of DCDC clocks 1116 */ 1117 regmap_clear_bits(pmic->mfd->regmap, TPS65910_DCDCCTRL, 1118 DCDCCTRL_DCDCCKSYNC_MASK); 1119 break; 1120 case TPS65911: 1121 BUILD_BUG_ON(TPS65910_NUM_REGS < ARRAY_SIZE(tps65911_regs)); 1122 pmic->get_ctrl_reg = &tps65911_get_ctrl_register; 1123 pmic->num_regulators = ARRAY_SIZE(tps65911_regs); 1124 pmic->ext_sleep_control = tps65911_ext_sleep_control; 1125 info = tps65911_regs; 1126 break; 1127 default: 1128 dev_err(&pdev->dev, "Invalid tps chip version\n"); 1129 return -ENODEV; 1130 } 1131 1132 pmic->desc = devm_kcalloc(&pdev->dev, 1133 pmic->num_regulators, 1134 sizeof(struct regulator_desc), 1135 GFP_KERNEL); 1136 if (!pmic->desc) 1137 return -ENOMEM; 1138 1139 pmic->info = devm_kcalloc(&pdev->dev, 1140 pmic->num_regulators, 1141 sizeof(struct tps_info *), 1142 GFP_KERNEL); 1143 if (!pmic->info) 1144 return -ENOMEM; 1145 1146 pmic->rdev = devm_kcalloc(&pdev->dev, 1147 pmic->num_regulators, 1148 sizeof(struct regulator_dev *), 1149 GFP_KERNEL); 1150 if (!pmic->rdev) 1151 return -ENOMEM; 1152 1153 for (i = 0; i < pmic->num_regulators; i++, info++) { 1154 /* Register the regulators */ 1155 pmic->info[i] = info; 1156 1157 pmic->desc[i].name = info->name; 1158 pmic->desc[i].supply_name = info->vin_name; 1159 pmic->desc[i].id = i; 1160 pmic->desc[i].n_voltages = info->n_voltages; 1161 pmic->desc[i].enable_time = info->enable_time_us; 1162 1163 if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) { 1164 pmic->desc[i].ops = &tps65910_ops_dcdc; 1165 pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE * 1166 VDD1_2_NUM_VOLT_COARSE; 1167 pmic->desc[i].ramp_delay = 12500; 1168 } else if (i == TPS65910_REG_VDD3) { 1169 if (tps65910_chip_id(tps65910) == TPS65910) { 1170 pmic->desc[i].ops = &tps65910_ops_vdd3; 1171 pmic->desc[i].volt_table = info->voltage_table; 1172 } else { 1173 pmic->desc[i].ops = &tps65910_ops_dcdc; 1174 pmic->desc[i].ramp_delay = 5000; 1175 } 1176 } else if (i == TPS65910_REG_VBB && 1177 tps65910_chip_id(tps65910) == TPS65910) { 1178 pmic->desc[i].ops = &tps65910_ops_vbb; 1179 pmic->desc[i].volt_table = info->voltage_table; 1180 } else { 1181 if (tps65910_chip_id(tps65910) == TPS65910) { 1182 pmic->desc[i].ops = &tps65910_ops; 1183 pmic->desc[i].volt_table = info->voltage_table; 1184 } else { 1185 pmic->desc[i].ops = &tps65911_ops; 1186 } 1187 } 1188 1189 err = tps65910_set_ext_sleep_config(pmic, i, 1190 pmic_plat_data->regulator_ext_sleep_control[i]); 1191 /* 1192 * Failing on regulator for configuring externally control 1193 * is not a serious issue, just throw warning. 1194 */ 1195 if (err < 0) 1196 dev_warn(tps65910->dev, 1197 "Failed to initialise ext control config\n"); 1198 1199 pmic->desc[i].type = REGULATOR_VOLTAGE; 1200 pmic->desc[i].owner = THIS_MODULE; 1201 pmic->desc[i].enable_reg = pmic->get_ctrl_reg(i); 1202 pmic->desc[i].enable_mask = TPS65910_SUPPLY_STATE_ENABLED; 1203 1204 config.dev = tps65910->dev; 1205 config.init_data = pmic_plat_data->tps65910_pmic_init_data[i]; 1206 config.driver_data = pmic; 1207 config.regmap = tps65910->regmap; 1208 1209 if (tps65910_reg_matches) 1210 config.of_node = tps65910_reg_matches[i].of_node; 1211 1212 rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i], 1213 &config); 1214 if (IS_ERR(rdev)) 1215 return dev_err_probe(tps65910->dev, PTR_ERR(rdev), 1216 "failed to register %s regulator\n", 1217 pdev->name); 1218 1219 /* Save regulator for cleanup */ 1220 pmic->rdev[i] = rdev; 1221 } 1222 return 0; 1223} 1224 1225static void tps65910_shutdown(struct platform_device *pdev) 1226{ 1227 struct tps65910_reg *pmic = platform_get_drvdata(pdev); 1228 int i; 1229 1230 /* 1231 * Before bootloader jumps to kernel, it makes sure that required 1232 * external control signals are in desired state so that given rails 1233 * can be configure accordingly. 1234 * If rails are configured to be controlled from external control 1235 * then before shutting down/rebooting the system, the external 1236 * control configuration need to be remove from the rails so that 1237 * its output will be available as per register programming even 1238 * if external controls are removed. This is require when the POR 1239 * value of the control signals are not in active state and before 1240 * bootloader initializes it, the system requires the rail output 1241 * to be active for booting. 1242 */ 1243 for (i = 0; i < pmic->num_regulators; i++) { 1244 int err; 1245 if (!pmic->rdev[i]) 1246 continue; 1247 1248 err = tps65910_set_ext_sleep_config(pmic, i, 0); 1249 if (err < 0) 1250 dev_err(&pdev->dev, 1251 "Error in clearing external control\n"); 1252 } 1253} 1254 1255static struct platform_driver tps65910_driver = { 1256 .driver = { 1257 .name = "tps65910-pmic", 1258 }, 1259 .probe = tps65910_probe, 1260 .shutdown = tps65910_shutdown, 1261}; 1262 1263static int __init tps65910_init(void) 1264{ 1265 return platform_driver_register(&tps65910_driver); 1266} 1267subsys_initcall(tps65910_init); 1268 1269static void __exit tps65910_cleanup(void) 1270{ 1271 platform_driver_unregister(&tps65910_driver); 1272} 1273module_exit(tps65910_cleanup); 1274 1275MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); 1276MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver"); 1277MODULE_LICENSE("GPL v2"); 1278MODULE_ALIAS("platform:tps65910-pmic"); 1279