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