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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs4 *5 * http://www.active-semi.com/products/power-management-units/act88xx/6 *7 * Copyright (C) 2013 Atmel Corporation8 */9 10#include <linux/module.h>11#include <linux/init.h>12#include <linux/i2c.h>13#include <linux/err.h>14#include <linux/platform_device.h>15#include <linux/regulator/driver.h>16#include <linux/regulator/act8865.h>17#include <linux/of.h>18#include <linux/of_device.h>19#include <linux/power_supply.h>20#include <linux/regulator/of_regulator.h>21#include <linux/regmap.h>22#include <dt-bindings/regulator/active-semi,8865-regulator.h>23 24/*25 * ACT8600 Global Register Map.26 */27#define ACT8600_SYS_MODE 0x0028#define ACT8600_SYS_CTRL 0x0129#define ACT8600_DCDC1_VSET 0x1030#define ACT8600_DCDC1_CTRL 0x1231#define ACT8600_DCDC2_VSET 0x2032#define ACT8600_DCDC2_CTRL 0x2233#define ACT8600_DCDC3_VSET 0x3034#define ACT8600_DCDC3_CTRL 0x3235#define ACT8600_SUDCDC4_VSET 0x4036#define ACT8600_SUDCDC4_CTRL 0x4137#define ACT8600_LDO5_VSET 0x5038#define ACT8600_LDO5_CTRL 0x5139#define ACT8600_LDO6_VSET 0x6040#define ACT8600_LDO6_CTRL 0x6141#define ACT8600_LDO7_VSET 0x7042#define ACT8600_LDO7_CTRL 0x7143#define ACT8600_LDO8_VSET 0x8044#define ACT8600_LDO8_CTRL 0x8145#define ACT8600_LDO910_CTRL 0x9146#define ACT8600_APCH0 0xA147#define ACT8600_APCH1 0xA848#define ACT8600_APCH2 0xA949#define ACT8600_APCH_STAT 0xAA50#define ACT8600_OTG0 0xB051#define ACT8600_OTG1 0xB252 53/*54 * ACT8846 Global Register Map.55 */56#define ACT8846_SYS0 0x0057#define ACT8846_SYS1 0x0158#define ACT8846_REG1_VSET 0x1059#define ACT8846_REG1_CTRL 0x1260#define ACT8846_REG2_VSET0 0x2061#define ACT8846_REG2_VSET1 0x2162#define ACT8846_REG2_CTRL 0x2263#define ACT8846_REG3_VSET0 0x3064#define ACT8846_REG3_VSET1 0x3165#define ACT8846_REG3_CTRL 0x3266#define ACT8846_REG4_VSET0 0x4067#define ACT8846_REG4_VSET1 0x4168#define ACT8846_REG4_CTRL 0x4269#define ACT8846_REG5_VSET 0x5070#define ACT8846_REG5_CTRL 0x5171#define ACT8846_REG6_VSET 0x5872#define ACT8846_REG6_CTRL 0x5973#define ACT8846_REG7_VSET 0x6074#define ACT8846_REG7_CTRL 0x6175#define ACT8846_REG8_VSET 0x6876#define ACT8846_REG8_CTRL 0x6977#define ACT8846_REG9_VSET 0x7078#define ACT8846_REG9_CTRL 0x7179#define ACT8846_REG10_VSET 0x8080#define ACT8846_REG10_CTRL 0x8181#define ACT8846_REG11_VSET 0x9082#define ACT8846_REG11_CTRL 0x9183#define ACT8846_REG12_VSET 0xa084#define ACT8846_REG12_CTRL 0xa185#define ACT8846_REG13_CTRL 0xb186#define ACT8846_GLB_OFF_CTRL 0xc387#define ACT8846_OFF_SYSMASK 0x1888 89/*90 * ACT8865 Global Register Map.91 */92#define ACT8865_SYS_MODE 0x0093#define ACT8865_SYS_CTRL 0x0194#define ACT8865_SYS_UNLK_REGS 0x0b95#define ACT8865_DCDC1_VSET1 0x2096#define ACT8865_DCDC1_VSET2 0x2197#define ACT8865_DCDC1_CTRL 0x2298#define ACT8865_DCDC1_SUS 0x2499#define ACT8865_DCDC2_VSET1 0x30100#define ACT8865_DCDC2_VSET2 0x31101#define ACT8865_DCDC2_CTRL 0x32102#define ACT8865_DCDC2_SUS 0x34103#define ACT8865_DCDC3_VSET1 0x40104#define ACT8865_DCDC3_VSET2 0x41105#define ACT8865_DCDC3_CTRL 0x42106#define ACT8865_DCDC3_SUS 0x44107#define ACT8865_LDO1_VSET 0x50108#define ACT8865_LDO1_CTRL 0x51109#define ACT8865_LDO1_SUS 0x52110#define ACT8865_LDO2_VSET 0x54111#define ACT8865_LDO2_CTRL 0x55112#define ACT8865_LDO2_SUS 0x56113#define ACT8865_LDO3_VSET 0x60114#define ACT8865_LDO3_CTRL 0x61115#define ACT8865_LDO3_SUS 0x62116#define ACT8865_LDO4_VSET 0x64117#define ACT8865_LDO4_CTRL 0x65118#define ACT8865_LDO4_SUS 0x66119#define ACT8865_MSTROFF 0x20120 121/*122 * Field Definitions.123 */124#define ACT8865_ENA 0x80 /* ON - [7] */125#define ACT8865_DIS 0x40 /* DIS - [6] */126 127#define ACT8865_VSEL_MASK 0x3F /* VSET - [5:0] */128 129 130#define ACT8600_LDO10_ENA 0x40 /* ON - [6] */131#define ACT8600_SUDCDC_VSEL_MASK 0xFF /* SUDCDC VSET - [7:0] */132 133#define ACT8600_APCH_CHG_ACIN BIT(7)134#define ACT8600_APCH_CHG_USB BIT(6)135#define ACT8600_APCH_CSTATE0 BIT(5)136#define ACT8600_APCH_CSTATE1 BIT(4)137 138/*139 * ACT8865 voltage number140 */141#define ACT8865_VOLTAGE_NUM 64142#define ACT8600_SUDCDC_VOLTAGE_NUM 256143 144struct act8865 {145 struct regmap *regmap;146 int off_reg;147 int off_mask;148};149 150static const struct regmap_range act8600_reg_ranges[] = {151 regmap_reg_range(0x00, 0x01),152 regmap_reg_range(0x10, 0x10),153 regmap_reg_range(0x12, 0x12),154 regmap_reg_range(0x20, 0x20),155 regmap_reg_range(0x22, 0x22),156 regmap_reg_range(0x30, 0x30),157 regmap_reg_range(0x32, 0x32),158 regmap_reg_range(0x40, 0x41),159 regmap_reg_range(0x50, 0x51),160 regmap_reg_range(0x60, 0x61),161 regmap_reg_range(0x70, 0x71),162 regmap_reg_range(0x80, 0x81),163 regmap_reg_range(0x91, 0x91),164 regmap_reg_range(0xA1, 0xA1),165 regmap_reg_range(0xA8, 0xAA),166 regmap_reg_range(0xB0, 0xB0),167 regmap_reg_range(0xB2, 0xB2),168 regmap_reg_range(0xC1, 0xC1),169};170 171static const struct regmap_range act8600_reg_ro_ranges[] = {172 regmap_reg_range(0xAA, 0xAA),173 regmap_reg_range(0xC1, 0xC1),174};175 176static const struct regmap_range act8600_reg_volatile_ranges[] = {177 regmap_reg_range(0x00, 0x01),178 regmap_reg_range(0x12, 0x12),179 regmap_reg_range(0x22, 0x22),180 regmap_reg_range(0x32, 0x32),181 regmap_reg_range(0x41, 0x41),182 regmap_reg_range(0x51, 0x51),183 regmap_reg_range(0x61, 0x61),184 regmap_reg_range(0x71, 0x71),185 regmap_reg_range(0x81, 0x81),186 regmap_reg_range(0xA8, 0xA8),187 regmap_reg_range(0xAA, 0xAA),188 regmap_reg_range(0xB0, 0xB0),189 regmap_reg_range(0xC1, 0xC1),190};191 192static const struct regmap_access_table act8600_write_ranges_table = {193 .yes_ranges = act8600_reg_ranges,194 .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),195 .no_ranges = act8600_reg_ro_ranges,196 .n_no_ranges = ARRAY_SIZE(act8600_reg_ro_ranges),197};198 199static const struct regmap_access_table act8600_read_ranges_table = {200 .yes_ranges = act8600_reg_ranges,201 .n_yes_ranges = ARRAY_SIZE(act8600_reg_ranges),202};203 204static const struct regmap_access_table act8600_volatile_ranges_table = {205 .yes_ranges = act8600_reg_volatile_ranges,206 .n_yes_ranges = ARRAY_SIZE(act8600_reg_volatile_ranges),207};208 209static const struct regmap_config act8600_regmap_config = {210 .reg_bits = 8,211 .val_bits = 8,212 .max_register = 0xFF,213 .wr_table = &act8600_write_ranges_table,214 .rd_table = &act8600_read_ranges_table,215 .volatile_table = &act8600_volatile_ranges_table,216};217 218static const struct regmap_config act8865_regmap_config = {219 .reg_bits = 8,220 .val_bits = 8,221};222 223static const struct linear_range act8865_voltage_ranges[] = {224 REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),225 REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),226 REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),227};228 229static const struct linear_range act8600_sudcdc_voltage_ranges[] = {230 REGULATOR_LINEAR_RANGE(3000000, 0, 63, 0),231 REGULATOR_LINEAR_RANGE(3000000, 64, 159, 100000),232 REGULATOR_LINEAR_RANGE(12600000, 160, 191, 200000),233 REGULATOR_LINEAR_RANGE(19000000, 192, 247, 400000),234 REGULATOR_LINEAR_RANGE(41400000, 248, 255, 0),235};236 237static int act8865_set_suspend_state(struct regulator_dev *rdev, bool enable)238{239 struct regmap *regmap = rdev->regmap;240 int id = rdev->desc->id, reg, val;241 242 switch (id) {243 case ACT8865_ID_DCDC1:244 reg = ACT8865_DCDC1_SUS;245 val = 0xa8;246 break;247 case ACT8865_ID_DCDC2:248 reg = ACT8865_DCDC2_SUS;249 val = 0xa8;250 break;251 case ACT8865_ID_DCDC3:252 reg = ACT8865_DCDC3_SUS;253 val = 0xa8;254 break;255 case ACT8865_ID_LDO1:256 reg = ACT8865_LDO1_SUS;257 val = 0xe8;258 break;259 case ACT8865_ID_LDO2:260 reg = ACT8865_LDO2_SUS;261 val = 0xe8;262 break;263 case ACT8865_ID_LDO3:264 reg = ACT8865_LDO3_SUS;265 val = 0xe8;266 break;267 case ACT8865_ID_LDO4:268 reg = ACT8865_LDO4_SUS;269 val = 0xe8;270 break;271 default:272 return -EINVAL;273 }274 275 if (enable)276 val |= BIT(4);277 278 /*279 * Ask the PMIC to enable/disable this output when entering hibernate280 * mode.281 */282 return regmap_write(regmap, reg, val);283}284 285static int act8865_set_suspend_enable(struct regulator_dev *rdev)286{287 return act8865_set_suspend_state(rdev, true);288}289 290static int act8865_set_suspend_disable(struct regulator_dev *rdev)291{292 return act8865_set_suspend_state(rdev, false);293}294 295static unsigned int act8865_of_map_mode(unsigned int mode)296{297 switch (mode) {298 case ACT8865_REGULATOR_MODE_FIXED:299 return REGULATOR_MODE_FAST;300 case ACT8865_REGULATOR_MODE_NORMAL:301 return REGULATOR_MODE_NORMAL;302 case ACT8865_REGULATOR_MODE_LOWPOWER:303 return REGULATOR_MODE_STANDBY;304 default:305 return REGULATOR_MODE_INVALID;306 }307}308 309static int act8865_set_mode(struct regulator_dev *rdev, unsigned int mode)310{311 struct regmap *regmap = rdev->regmap;312 int id = rdev_get_id(rdev);313 int reg, val = 0;314 315 switch (id) {316 case ACT8865_ID_DCDC1:317 reg = ACT8865_DCDC1_CTRL;318 break;319 case ACT8865_ID_DCDC2:320 reg = ACT8865_DCDC2_CTRL;321 break;322 case ACT8865_ID_DCDC3:323 reg = ACT8865_DCDC3_CTRL;324 break;325 case ACT8865_ID_LDO1:326 reg = ACT8865_LDO1_CTRL;327 break;328 case ACT8865_ID_LDO2:329 reg = ACT8865_LDO2_CTRL;330 break;331 case ACT8865_ID_LDO3:332 reg = ACT8865_LDO3_CTRL;333 break;334 case ACT8865_ID_LDO4:335 reg = ACT8865_LDO4_CTRL;336 break;337 default:338 return -EINVAL;339 }340 341 switch (mode) {342 case REGULATOR_MODE_FAST:343 case REGULATOR_MODE_NORMAL:344 if (id <= ACT8865_ID_DCDC3)345 val = BIT(5);346 break;347 case REGULATOR_MODE_STANDBY:348 if (id > ACT8865_ID_DCDC3)349 val = BIT(5);350 break;351 default:352 return -EINVAL;353 }354 355 return regmap_update_bits(regmap, reg, BIT(5), val);356}357 358static unsigned int act8865_get_mode(struct regulator_dev *rdev)359{360 struct regmap *regmap = rdev->regmap;361 int id = rdev_get_id(rdev);362 int reg, ret, val = 0;363 364 switch (id) {365 case ACT8865_ID_DCDC1:366 reg = ACT8865_DCDC1_CTRL;367 break;368 case ACT8865_ID_DCDC2:369 reg = ACT8865_DCDC2_CTRL;370 break;371 case ACT8865_ID_DCDC3:372 reg = ACT8865_DCDC3_CTRL;373 break;374 case ACT8865_ID_LDO1:375 reg = ACT8865_LDO1_CTRL;376 break;377 case ACT8865_ID_LDO2:378 reg = ACT8865_LDO2_CTRL;379 break;380 case ACT8865_ID_LDO3:381 reg = ACT8865_LDO3_CTRL;382 break;383 case ACT8865_ID_LDO4:384 reg = ACT8865_LDO4_CTRL;385 break;386 default:387 return -EINVAL;388 }389 390 ret = regmap_read(regmap, reg, &val);391 if (ret)392 return ret;393 394 if (id <= ACT8865_ID_DCDC3 && (val & BIT(5)))395 return REGULATOR_MODE_FAST;396 else if (id > ACT8865_ID_DCDC3 && !(val & BIT(5)))397 return REGULATOR_MODE_NORMAL;398 else399 return REGULATOR_MODE_STANDBY;400}401 402static const struct regulator_ops act8865_ops = {403 .list_voltage = regulator_list_voltage_linear_range,404 .map_voltage = regulator_map_voltage_linear_range,405 .get_voltage_sel = regulator_get_voltage_sel_regmap,406 .set_voltage_sel = regulator_set_voltage_sel_regmap,407 .enable = regulator_enable_regmap,408 .disable = regulator_disable_regmap,409 .set_mode = act8865_set_mode,410 .get_mode = act8865_get_mode,411 .is_enabled = regulator_is_enabled_regmap,412 .set_suspend_enable = act8865_set_suspend_enable,413 .set_suspend_disable = act8865_set_suspend_disable,414};415 416static const struct regulator_ops act8865_ldo_ops = {417 .list_voltage = regulator_list_voltage_linear_range,418 .map_voltage = regulator_map_voltage_linear_range,419 .get_voltage_sel = regulator_get_voltage_sel_regmap,420 .set_voltage_sel = regulator_set_voltage_sel_regmap,421 .enable = regulator_enable_regmap,422 .disable = regulator_disable_regmap,423 .set_mode = act8865_set_mode,424 .get_mode = act8865_get_mode,425 .is_enabled = regulator_is_enabled_regmap,426 .set_suspend_enable = act8865_set_suspend_enable,427 .set_suspend_disable = act8865_set_suspend_disable,428 .set_pull_down = regulator_set_pull_down_regmap,429};430 431static const struct regulator_ops act8865_fixed_ldo_ops = {432 .enable = regulator_enable_regmap,433 .disable = regulator_disable_regmap,434 .is_enabled = regulator_is_enabled_regmap,435};436 437#define ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, _ops) \438 [_family##_ID_##_id] = { \439 .name = _name, \440 .of_match = of_match_ptr(_name), \441 .of_map_mode = act8865_of_map_mode, \442 .regulators_node = of_match_ptr("regulators"), \443 .supply_name = _supply, \444 .id = _family##_ID_##_id, \445 .type = REGULATOR_VOLTAGE, \446 .ops = _ops, \447 .n_voltages = ACT8865_VOLTAGE_NUM, \448 .linear_ranges = act8865_voltage_ranges, \449 .n_linear_ranges = ARRAY_SIZE(act8865_voltage_ranges), \450 .vsel_reg = _family##_##_id##_##_vsel_reg, \451 .vsel_mask = ACT8865_VSEL_MASK, \452 .enable_reg = _family##_##_id##_CTRL, \453 .enable_mask = ACT8865_ENA, \454 .pull_down_reg = _family##_##_id##_CTRL, \455 .pull_down_mask = ACT8865_DIS, \456 .owner = THIS_MODULE, \457 }458 459#define ACT88xx_REG(_name, _family, _id, _vsel_reg, _supply) \460 ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ops)461 462#define ACT88xx_LDO(_name, _family, _id, _vsel_reg, _supply) \463 ACT88xx_REG_(_name, _family, _id, _vsel_reg, _supply, &act8865_ldo_ops)464 465static const struct regulator_desc act8600_regulators[] = {466 ACT88xx_REG("DCDC1", ACT8600, DCDC1, VSET, "vp1"),467 ACT88xx_REG("DCDC2", ACT8600, DCDC2, VSET, "vp2"),468 ACT88xx_REG("DCDC3", ACT8600, DCDC3, VSET, "vp3"),469 {470 .name = "SUDCDC_REG4",471 .of_match = of_match_ptr("SUDCDC_REG4"),472 .regulators_node = of_match_ptr("regulators"),473 .id = ACT8600_ID_SUDCDC4,474 .ops = &act8865_ops,475 .type = REGULATOR_VOLTAGE,476 .n_voltages = ACT8600_SUDCDC_VOLTAGE_NUM,477 .linear_ranges = act8600_sudcdc_voltage_ranges,478 .n_linear_ranges = ARRAY_SIZE(act8600_sudcdc_voltage_ranges),479 .vsel_reg = ACT8600_SUDCDC4_VSET,480 .vsel_mask = ACT8600_SUDCDC_VSEL_MASK,481 .enable_reg = ACT8600_SUDCDC4_CTRL,482 .enable_mask = ACT8865_ENA,483 .owner = THIS_MODULE,484 },485 ACT88xx_REG("LDO5", ACT8600, LDO5, VSET, "inl"),486 ACT88xx_REG("LDO6", ACT8600, LDO6, VSET, "inl"),487 ACT88xx_REG("LDO7", ACT8600, LDO7, VSET, "inl"),488 ACT88xx_REG("LDO8", ACT8600, LDO8, VSET, "inl"),489 {490 .name = "LDO_REG9",491 .of_match = of_match_ptr("LDO_REG9"),492 .regulators_node = of_match_ptr("regulators"),493 .id = ACT8600_ID_LDO9,494 .ops = &act8865_fixed_ldo_ops,495 .type = REGULATOR_VOLTAGE,496 .n_voltages = 1,497 .fixed_uV = 3300000,498 .enable_reg = ACT8600_LDO910_CTRL,499 .enable_mask = ACT8865_ENA,500 .owner = THIS_MODULE,501 },502 {503 .name = "LDO_REG10",504 .of_match = of_match_ptr("LDO_REG10"),505 .regulators_node = of_match_ptr("regulators"),506 .id = ACT8600_ID_LDO10,507 .ops = &act8865_fixed_ldo_ops,508 .type = REGULATOR_VOLTAGE,509 .n_voltages = 1,510 .fixed_uV = 1200000,511 .enable_reg = ACT8600_LDO910_CTRL,512 .enable_mask = ACT8600_LDO10_ENA,513 .owner = THIS_MODULE,514 },515};516 517static const struct regulator_desc act8846_regulators[] = {518 ACT88xx_REG("REG1", ACT8846, REG1, VSET, "vp1"),519 ACT88xx_REG("REG2", ACT8846, REG2, VSET0, "vp2"),520 ACT88xx_REG("REG3", ACT8846, REG3, VSET0, "vp3"),521 ACT88xx_REG("REG4", ACT8846, REG4, VSET0, "vp4"),522 ACT88xx_REG("REG5", ACT8846, REG5, VSET, "inl1"),523 ACT88xx_REG("REG6", ACT8846, REG6, VSET, "inl1"),524 ACT88xx_REG("REG7", ACT8846, REG7, VSET, "inl1"),525 ACT88xx_REG("REG8", ACT8846, REG8, VSET, "inl2"),526 ACT88xx_REG("REG9", ACT8846, REG9, VSET, "inl2"),527 ACT88xx_REG("REG10", ACT8846, REG10, VSET, "inl3"),528 ACT88xx_REG("REG11", ACT8846, REG11, VSET, "inl3"),529 ACT88xx_REG("REG12", ACT8846, REG12, VSET, "inl3"),530};531 532static const struct regulator_desc act8865_regulators[] = {533 ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1, "vp1"),534 ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1, "vp2"),535 ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1, "vp3"),536 ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),537 ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),538 ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),539 ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),540};541 542static const struct regulator_desc act8865_alt_regulators[] = {543 ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET2, "vp1"),544 ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET2, "vp2"),545 ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET2, "vp3"),546 ACT88xx_LDO("LDO_REG1", ACT8865, LDO1, VSET, "inl45"),547 ACT88xx_LDO("LDO_REG2", ACT8865, LDO2, VSET, "inl45"),548 ACT88xx_LDO("LDO_REG3", ACT8865, LDO3, VSET, "inl67"),549 ACT88xx_LDO("LDO_REG4", ACT8865, LDO4, VSET, "inl67"),550};551 552#ifdef CONFIG_OF553static const struct of_device_id act8865_dt_ids[] = {554 { .compatible = "active-semi,act8600", .data = (void *)ACT8600 },555 { .compatible = "active-semi,act8846", .data = (void *)ACT8846 },556 { .compatible = "active-semi,act8865", .data = (void *)ACT8865 },557 { }558};559MODULE_DEVICE_TABLE(of, act8865_dt_ids);560#endif561 562static struct act8865_regulator_data *act8865_get_regulator_data(563 int id, struct act8865_platform_data *pdata)564{565 int i;566 567 for (i = 0; i < pdata->num_regulators; i++) {568 if (pdata->regulators[i].id == id)569 return &pdata->regulators[i];570 }571 572 return NULL;573}574 575static struct i2c_client *act8865_i2c_client;576static void act8865_power_off(void)577{578 struct act8865 *act8865;579 580 act8865 = i2c_get_clientdata(act8865_i2c_client);581 regmap_write(act8865->regmap, act8865->off_reg, act8865->off_mask);582 while (1);583}584 585static int act8600_charger_get_status(struct regmap *map)586{587 unsigned int val;588 int ret;589 u8 state0, state1;590 591 ret = regmap_read(map, ACT8600_APCH_STAT, &val);592 if (ret < 0)593 return ret;594 595 state0 = val & ACT8600_APCH_CSTATE0;596 state1 = val & ACT8600_APCH_CSTATE1;597 598 if (state0 && !state1)599 return POWER_SUPPLY_STATUS_CHARGING;600 if (!state0 && state1)601 return POWER_SUPPLY_STATUS_NOT_CHARGING;602 if (!state0 && !state1)603 return POWER_SUPPLY_STATUS_DISCHARGING;604 605 return POWER_SUPPLY_STATUS_UNKNOWN;606}607 608static int act8600_charger_get_property(struct power_supply *psy,609 enum power_supply_property psp, union power_supply_propval *val)610{611 struct regmap *map = power_supply_get_drvdata(psy);612 int ret;613 614 switch (psp) {615 case POWER_SUPPLY_PROP_STATUS:616 ret = act8600_charger_get_status(map);617 if (ret < 0)618 return ret;619 620 val->intval = ret;621 break;622 default:623 return -EINVAL;624 }625 626 return 0;627}628 629static enum power_supply_property act8600_charger_properties[] = {630 POWER_SUPPLY_PROP_STATUS,631};632 633static const struct power_supply_desc act8600_charger_desc = {634 .name = "act8600-charger",635 .type = POWER_SUPPLY_TYPE_BATTERY,636 .properties = act8600_charger_properties,637 .num_properties = ARRAY_SIZE(act8600_charger_properties),638 .get_property = act8600_charger_get_property,639};640 641static int act8600_charger_probe(struct device *dev, struct regmap *regmap)642{643 struct power_supply *charger;644 struct power_supply_config cfg = {645 .drv_data = regmap,646 .of_node = dev->of_node,647 };648 649 charger = devm_power_supply_register(dev, &act8600_charger_desc, &cfg);650 651 return PTR_ERR_OR_ZERO(charger);652}653 654static int act8865_pmic_probe(struct i2c_client *client)655{656 const struct i2c_device_id *i2c_id = i2c_client_get_device_id(client);657 const struct regulator_desc *regulators;658 struct act8865_platform_data *pdata = NULL;659 struct device *dev = &client->dev;660 int i, ret, num_regulators;661 struct act8865 *act8865;662 const struct regmap_config *regmap_config;663 unsigned long type;664 int off_reg, off_mask;665 int voltage_select = 0;666 667 if (dev->of_node) {668 const struct of_device_id *id;669 670 id = of_match_device(of_match_ptr(act8865_dt_ids), dev);671 if (!id)672 return -ENODEV;673 674 type = (unsigned long) id->data;675 676 voltage_select = of_property_read_bool(dev->of_node, "active-semi,vsel-high");677 } else {678 type = i2c_id->driver_data;679 pdata = dev_get_platdata(dev);680 }681 682 switch (type) {683 case ACT8600:684 regulators = act8600_regulators;685 num_regulators = ARRAY_SIZE(act8600_regulators);686 regmap_config = &act8600_regmap_config;687 off_reg = -1;688 off_mask = -1;689 break;690 case ACT8846:691 regulators = act8846_regulators;692 num_regulators = ARRAY_SIZE(act8846_regulators);693 regmap_config = &act8865_regmap_config;694 off_reg = ACT8846_GLB_OFF_CTRL;695 off_mask = ACT8846_OFF_SYSMASK;696 break;697 case ACT8865:698 if (voltage_select) {699 regulators = act8865_alt_regulators;700 num_regulators = ARRAY_SIZE(act8865_alt_regulators);701 } else {702 regulators = act8865_regulators;703 num_regulators = ARRAY_SIZE(act8865_regulators);704 }705 regmap_config = &act8865_regmap_config;706 off_reg = ACT8865_SYS_CTRL;707 off_mask = ACT8865_MSTROFF;708 break;709 default:710 dev_err(dev, "invalid device id %lu\n", type);711 return -EINVAL;712 }713 714 act8865 = devm_kzalloc(dev, sizeof(struct act8865), GFP_KERNEL);715 if (!act8865)716 return -ENOMEM;717 718 act8865->regmap = devm_regmap_init_i2c(client, regmap_config);719 if (IS_ERR(act8865->regmap)) {720 ret = PTR_ERR(act8865->regmap);721 dev_err(dev, "Failed to allocate register map: %d\n", ret);722 return ret;723 }724 725 if (of_device_is_system_power_controller(dev->of_node)) {726 if (!pm_power_off && (off_reg > 0)) {727 act8865_i2c_client = client;728 act8865->off_reg = off_reg;729 act8865->off_mask = off_mask;730 pm_power_off = act8865_power_off;731 } else {732 dev_err(dev, "Failed to set poweroff capability, already defined\n");733 }734 }735 736 /* Finally register devices */737 for (i = 0; i < num_regulators; i++) {738 const struct regulator_desc *desc = ®ulators[i];739 struct regulator_config config = { };740 struct regulator_dev *rdev;741 742 config.dev = dev;743 config.driver_data = act8865;744 config.regmap = act8865->regmap;745 746 if (pdata) {747 struct act8865_regulator_data *rdata;748 749 rdata = act8865_get_regulator_data(desc->id, pdata);750 if (rdata) {751 config.init_data = rdata->init_data;752 config.of_node = rdata->of_node;753 }754 }755 756 rdev = devm_regulator_register(dev, desc, &config);757 if (IS_ERR(rdev)) {758 dev_err(dev, "failed to register %s\n", desc->name);759 return PTR_ERR(rdev);760 }761 }762 763 if (type == ACT8600) {764 ret = act8600_charger_probe(dev, act8865->regmap);765 if (ret < 0) {766 if (ret != -EPROBE_DEFER)767 dev_err(dev, "Failed to probe charger");768 return ret;769 }770 }771 772 i2c_set_clientdata(client, act8865);773 774 /* Unlock expert registers for ACT8865. */775 return type != ACT8865 ? 0 : regmap_write(act8865->regmap,776 ACT8865_SYS_UNLK_REGS, 0xef);777}778 779static const struct i2c_device_id act8865_ids[] = {780 { .name = "act8600", .driver_data = ACT8600 },781 { .name = "act8846", .driver_data = ACT8846 },782 { .name = "act8865", .driver_data = ACT8865 },783 { },784};785MODULE_DEVICE_TABLE(i2c, act8865_ids);786 787static struct i2c_driver act8865_pmic_driver = {788 .driver = {789 .name = "act8865",790 .probe_type = PROBE_PREFER_ASYNCHRONOUS,791 },792 .probe = act8865_pmic_probe,793 .id_table = act8865_ids,794};795 796module_i2c_driver(act8865_pmic_driver);797 798MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");799MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");800MODULE_LICENSE("GPL v2");801