1057 lines · c
1// SPDX-License-Identifier: GPL-2.0+2//3// Regulator device driver for DA9061 and DA9062.4// Copyright (C) 2015-2017 Dialog Semiconductor5 6#include <linux/kernel.h>7#include <linux/module.h>8#include <linux/init.h>9#include <linux/err.h>10#include <linux/slab.h>11#include <linux/of.h>12#include <linux/platform_device.h>13#include <linux/regmap.h>14#include <linux/regulator/driver.h>15#include <linux/regulator/machine.h>16#include <linux/regulator/of_regulator.h>17#include <linux/mfd/da9062/core.h>18#include <linux/mfd/da9062/registers.h>19#include <dt-bindings/regulator/dlg,da9063-regulator.h>20 21/* Regulator IDs */22enum {23 DA9061_ID_BUCK1,24 DA9061_ID_BUCK2,25 DA9061_ID_BUCK3,26 DA9061_ID_LDO1,27 DA9061_ID_LDO2,28 DA9061_ID_LDO3,29 DA9061_ID_LDO4,30 DA9061_MAX_REGULATORS,31};32 33enum {34 DA9062_ID_BUCK1,35 DA9062_ID_BUCK2,36 DA9062_ID_BUCK3,37 DA9062_ID_BUCK4,38 DA9062_ID_LDO1,39 DA9062_ID_LDO2,40 DA9062_ID_LDO3,41 DA9062_ID_LDO4,42 DA9062_MAX_REGULATORS,43};44 45/* Regulator capabilities and registers description */46struct da9062_regulator_info {47 struct regulator_desc desc;48 /* Main register fields */49 struct reg_field mode;50 struct reg_field suspend;51 struct reg_field sleep;52 struct reg_field suspend_sleep;53 unsigned int suspend_vsel_reg;54 /* Event detection bit */55 struct reg_field oc_event;56};57 58/* Single regulator settings */59struct da9062_regulator {60 struct regulator_desc desc;61 struct regulator_dev *rdev;62 struct da9062 *hw;63 const struct da9062_regulator_info *info;64 65 struct regmap_field *mode;66 struct regmap_field *suspend;67 struct regmap_field *sleep;68 struct regmap_field *suspend_sleep;69};70 71/* Encapsulates all information for the regulators driver */72struct da9062_regulators {73 int irq_ldo_lim;74 unsigned n_regulators;75 /* Array size to be defined during init. Keep at end. */76 struct da9062_regulator regulator[] __counted_by(n_regulators);77};78 79/* Regulator operations */80 81/* Current limits array (in uA)82 * - DA9061_ID_[BUCK1|BUCK3]83 * - DA9062_ID_[BUCK1|BUCK2|BUCK4]84 * Entry indexes corresponds to register values.85 */86static const unsigned int da9062_buck_a_limits[] = {87 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000,88 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 200000089};90 91/* Current limits array (in uA)92 * - DA9061_ID_BUCK293 * - DA9062_ID_BUCK394 * Entry indexes corresponds to register values.95 */96static const unsigned int da9062_buck_b_limits[] = {97 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,98 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 300000099};100 101static unsigned int da9062_map_buck_mode(unsigned int mode)102{103 switch (mode) {104 case DA9063_BUCK_MODE_SLEEP:105 return REGULATOR_MODE_STANDBY;106 case DA9063_BUCK_MODE_SYNC:107 return REGULATOR_MODE_FAST;108 case DA9063_BUCK_MODE_AUTO:109 return REGULATOR_MODE_NORMAL;110 default:111 return REGULATOR_MODE_INVALID;112 }113}114 115static int da9062_buck_set_mode(struct regulator_dev *rdev, unsigned mode)116{117 struct da9062_regulator *regl = rdev_get_drvdata(rdev);118 unsigned val;119 120 switch (mode) {121 case REGULATOR_MODE_FAST:122 val = DA9063_BUCK_MODE_SYNC;123 break;124 case REGULATOR_MODE_NORMAL:125 val = DA9063_BUCK_MODE_AUTO;126 break;127 case REGULATOR_MODE_STANDBY:128 val = DA9063_BUCK_MODE_SLEEP;129 break;130 default:131 return -EINVAL;132 }133 134 return regmap_field_write(regl->mode, val);135}136 137/*138 * Bucks use single mode register field for normal operation139 * and suspend state.140 * There are 3 modes to map to: FAST, NORMAL, and STANDBY.141 */142 143static unsigned da9062_buck_get_mode(struct regulator_dev *rdev)144{145 struct da9062_regulator *regl = rdev_get_drvdata(rdev);146 unsigned int val;147 int ret;148 149 ret = regmap_field_read(regl->mode, &val);150 if (ret < 0)151 return ret;152 153 switch (val) {154 default:155 /* Sleep flag bit decides the mode */156 break;157 case DA9063_BUCK_MODE_SLEEP:158 return REGULATOR_MODE_STANDBY;159 case DA9063_BUCK_MODE_SYNC:160 return REGULATOR_MODE_FAST;161 case DA9063_BUCK_MODE_AUTO:162 return REGULATOR_MODE_NORMAL;163 }164 165 ret = regmap_field_read(regl->sleep, &val);166 if (ret < 0)167 return 0;168 169 if (val)170 return REGULATOR_MODE_STANDBY;171 else172 return REGULATOR_MODE_FAST;173}174 175/*176 * LDOs use sleep flags - one for normal and one for suspend state.177 * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state.178 */179 180static int da9062_ldo_set_mode(struct regulator_dev *rdev, unsigned mode)181{182 struct da9062_regulator *regl = rdev_get_drvdata(rdev);183 unsigned val;184 185 switch (mode) {186 case REGULATOR_MODE_NORMAL:187 val = 0;188 break;189 case REGULATOR_MODE_STANDBY:190 val = 1;191 break;192 default:193 return -EINVAL;194 }195 196 return regmap_field_write(regl->sleep, val);197}198 199static unsigned da9062_ldo_get_mode(struct regulator_dev *rdev)200{201 struct da9062_regulator *regl = rdev_get_drvdata(rdev);202 int ret, val;203 204 ret = regmap_field_read(regl->sleep, &val);205 if (ret < 0)206 return 0;207 208 if (val)209 return REGULATOR_MODE_STANDBY;210 else211 return REGULATOR_MODE_NORMAL;212}213 214static int da9062_buck_get_status(struct regulator_dev *rdev)215{216 int ret = regulator_is_enabled_regmap(rdev);217 218 if (ret == 0) {219 ret = REGULATOR_STATUS_OFF;220 } else if (ret > 0) {221 ret = da9062_buck_get_mode(rdev);222 if (ret > 0)223 ret = regulator_mode_to_status(ret);224 else if (ret == 0)225 ret = -EIO;226 }227 228 return ret;229}230 231static int da9062_ldo_get_status(struct regulator_dev *rdev)232{233 int ret = regulator_is_enabled_regmap(rdev);234 235 if (ret == 0) {236 ret = REGULATOR_STATUS_OFF;237 } else if (ret > 0) {238 ret = da9062_ldo_get_mode(rdev);239 if (ret > 0)240 ret = regulator_mode_to_status(ret);241 else if (ret == 0)242 ret = -EIO;243 }244 245 return ret;246}247 248static int da9062_set_suspend_voltage(struct regulator_dev *rdev, int uv)249{250 struct da9062_regulator *regl = rdev_get_drvdata(rdev);251 const struct da9062_regulator_info *rinfo = regl->info;252 int ret, sel;253 254 sel = regulator_map_voltage_linear(rdev, uv, uv);255 if (sel < 0)256 return sel;257 258 sel <<= ffs(rdev->desc->vsel_mask) - 1;259 260 ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg,261 rdev->desc->vsel_mask, sel);262 263 return ret;264}265 266static int da9062_suspend_enable(struct regulator_dev *rdev)267{268 struct da9062_regulator *regl = rdev_get_drvdata(rdev);269 270 return regmap_field_write(regl->suspend, 1);271}272 273static int da9062_suspend_disable(struct regulator_dev *rdev)274{275 struct da9062_regulator *regl = rdev_get_drvdata(rdev);276 277 return regmap_field_write(regl->suspend, 0);278}279 280static int da9062_buck_set_suspend_mode(struct regulator_dev *rdev,281 unsigned mode)282{283 struct da9062_regulator *regl = rdev_get_drvdata(rdev);284 int val;285 286 switch (mode) {287 case REGULATOR_MODE_FAST:288 val = DA9063_BUCK_MODE_SYNC;289 break;290 case REGULATOR_MODE_NORMAL:291 val = DA9063_BUCK_MODE_AUTO;292 break;293 case REGULATOR_MODE_STANDBY:294 val = DA9063_BUCK_MODE_SLEEP;295 break;296 default:297 return -EINVAL;298 }299 300 return regmap_field_write(regl->mode, val);301}302 303static int da9062_ldo_set_suspend_mode(struct regulator_dev *rdev,304 unsigned mode)305{306 struct da9062_regulator *regl = rdev_get_drvdata(rdev);307 unsigned val;308 309 switch (mode) {310 case REGULATOR_MODE_NORMAL:311 val = 0;312 break;313 case REGULATOR_MODE_STANDBY:314 val = 1;315 break;316 default:317 return -EINVAL;318 }319 320 return regmap_field_write(regl->suspend_sleep, val);321}322 323static const struct regulator_ops da9062_buck_ops = {324 .enable = regulator_enable_regmap,325 .disable = regulator_disable_regmap,326 .is_enabled = regulator_is_enabled_regmap,327 .get_voltage_sel = regulator_get_voltage_sel_regmap,328 .set_voltage_sel = regulator_set_voltage_sel_regmap,329 .list_voltage = regulator_list_voltage_linear,330 .set_current_limit = regulator_set_current_limit_regmap,331 .get_current_limit = regulator_get_current_limit_regmap,332 .set_mode = da9062_buck_set_mode,333 .get_mode = da9062_buck_get_mode,334 .get_status = da9062_buck_get_status,335 .set_suspend_voltage = da9062_set_suspend_voltage,336 .set_suspend_enable = da9062_suspend_enable,337 .set_suspend_disable = da9062_suspend_disable,338 .set_suspend_mode = da9062_buck_set_suspend_mode,339};340 341static const struct regulator_ops da9062_ldo_ops = {342 .enable = regulator_enable_regmap,343 .disable = regulator_disable_regmap,344 .is_enabled = regulator_is_enabled_regmap,345 .get_voltage_sel = regulator_get_voltage_sel_regmap,346 .set_voltage_sel = regulator_set_voltage_sel_regmap,347 .list_voltage = regulator_list_voltage_linear,348 .set_mode = da9062_ldo_set_mode,349 .get_mode = da9062_ldo_get_mode,350 .get_status = da9062_ldo_get_status,351 .set_suspend_voltage = da9062_set_suspend_voltage,352 .set_suspend_enable = da9062_suspend_enable,353 .set_suspend_disable = da9062_suspend_disable,354 .set_suspend_mode = da9062_ldo_set_suspend_mode,355};356 357/* DA9061 Regulator information */358static const struct da9062_regulator_info local_da9061_regulator_info[] = {359 {360 .desc.id = DA9061_ID_BUCK1,361 .desc.name = "DA9061 BUCK1",362 .desc.of_match = of_match_ptr("buck1"),363 .desc.regulators_node = of_match_ptr("regulators"),364 .desc.ops = &da9062_buck_ops,365 .desc.min_uV = (300) * 1000,366 .desc.uV_step = (10) * 1000,367 .desc.n_voltages = ((1570) - (300))/(10) + 1,368 .desc.curr_table = da9062_buck_a_limits,369 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),370 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,371 .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,372 .desc.enable_reg = DA9062AA_BUCK1_CONT,373 .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,374 .desc.vsel_reg = DA9062AA_VBUCK1_A,375 .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,376 .desc.linear_min_sel = 0,377 .desc.of_map_mode = da9062_map_buck_mode,378 .sleep = REG_FIELD(DA9062AA_VBUCK1_A,379 __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,380 sizeof(unsigned int) * 8 -381 __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),382 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,383 __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,384 sizeof(unsigned int) * 8 -385 __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),386 .suspend_vsel_reg = DA9062AA_VBUCK1_B,387 .mode = REG_FIELD(DA9062AA_BUCK1_CFG,388 __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,389 sizeof(unsigned int) * 8 -390 __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),391 .suspend = REG_FIELD(DA9062AA_BUCK1_CONT,392 __builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1,393 sizeof(unsigned int) * 8 -394 __builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1),395 },396 {397 .desc.id = DA9061_ID_BUCK2,398 .desc.name = "DA9061 BUCK2",399 .desc.of_match = of_match_ptr("buck2"),400 .desc.regulators_node = of_match_ptr("regulators"),401 .desc.ops = &da9062_buck_ops,402 .desc.min_uV = (800) * 1000,403 .desc.uV_step = (20) * 1000,404 .desc.n_voltages = ((3340) - (800))/(20) + 1,405 .desc.curr_table = da9062_buck_b_limits,406 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),407 .desc.csel_reg = DA9062AA_BUCK_ILIM_A,408 .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,409 .desc.enable_reg = DA9062AA_BUCK3_CONT,410 .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,411 .desc.vsel_reg = DA9062AA_VBUCK3_A,412 .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,413 .desc.linear_min_sel = 0,414 .desc.of_map_mode = da9062_map_buck_mode,415 .sleep = REG_FIELD(DA9062AA_VBUCK3_A,416 __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,417 sizeof(unsigned int) * 8 -418 __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),419 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,420 __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,421 sizeof(unsigned int) * 8 -422 __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),423 .suspend_vsel_reg = DA9062AA_VBUCK3_B,424 .mode = REG_FIELD(DA9062AA_BUCK3_CFG,425 __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,426 sizeof(unsigned int) * 8 -427 __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),428 .suspend = REG_FIELD(DA9062AA_BUCK3_CONT,429 __builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1,430 sizeof(unsigned int) * 8 -431 __builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1),432 },433 {434 .desc.id = DA9061_ID_BUCK3,435 .desc.name = "DA9061 BUCK3",436 .desc.of_match = of_match_ptr("buck3"),437 .desc.regulators_node = of_match_ptr("regulators"),438 .desc.ops = &da9062_buck_ops,439 .desc.min_uV = (530) * 1000,440 .desc.uV_step = (10) * 1000,441 .desc.n_voltages = ((1800) - (530))/(10) + 1,442 .desc.curr_table = da9062_buck_a_limits,443 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),444 .desc.csel_reg = DA9062AA_BUCK_ILIM_B,445 .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,446 .desc.enable_reg = DA9062AA_BUCK4_CONT,447 .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,448 .desc.vsel_reg = DA9062AA_VBUCK4_A,449 .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,450 .desc.linear_min_sel = 0,451 .desc.of_map_mode = da9062_map_buck_mode,452 .sleep = REG_FIELD(DA9062AA_VBUCK4_A,453 __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,454 sizeof(unsigned int) * 8 -455 __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),456 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,457 __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,458 sizeof(unsigned int) * 8 -459 __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),460 .suspend_vsel_reg = DA9062AA_VBUCK4_B,461 .mode = REG_FIELD(DA9062AA_BUCK4_CFG,462 __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,463 sizeof(unsigned int) * 8 -464 __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),465 .suspend = REG_FIELD(DA9062AA_BUCK4_CONT,466 __builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1,467 sizeof(unsigned int) * 8 -468 __builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1),469 },470 {471 .desc.id = DA9061_ID_LDO1,472 .desc.name = "DA9061 LDO1",473 .desc.of_match = of_match_ptr("ldo1"),474 .desc.regulators_node = of_match_ptr("regulators"),475 .desc.ops = &da9062_ldo_ops,476 .desc.min_uV = (900) * 1000,477 .desc.uV_step = (50) * 1000,478 .desc.n_voltages = ((3600) - (900))/(50) + 1479 + DA9062AA_VLDO_A_MIN_SEL,480 .desc.enable_reg = DA9062AA_LDO1_CONT,481 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,482 .desc.vsel_reg = DA9062AA_VLDO1_A,483 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,484 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,485 .sleep = REG_FIELD(DA9062AA_VLDO1_A,486 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,487 sizeof(unsigned int) * 8 -488 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),489 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,490 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,491 sizeof(unsigned int) * 8 -492 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),493 .suspend_vsel_reg = DA9062AA_VLDO1_B,494 .suspend = REG_FIELD(DA9062AA_LDO1_CONT,495 __builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1,496 sizeof(unsigned int) * 8 -497 __builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1),498 .oc_event = REG_FIELD(DA9062AA_STATUS_D,499 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,500 sizeof(unsigned int) * 8 -501 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),502 },503 {504 .desc.id = DA9061_ID_LDO2,505 .desc.name = "DA9061 LDO2",506 .desc.of_match = of_match_ptr("ldo2"),507 .desc.regulators_node = of_match_ptr("regulators"),508 .desc.ops = &da9062_ldo_ops,509 .desc.min_uV = (900) * 1000,510 .desc.uV_step = (50) * 1000,511 .desc.n_voltages = ((3600) - (900))/(50) + 1512 + DA9062AA_VLDO_A_MIN_SEL,513 .desc.enable_reg = DA9062AA_LDO2_CONT,514 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,515 .desc.vsel_reg = DA9062AA_VLDO2_A,516 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,517 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,518 .sleep = REG_FIELD(DA9062AA_VLDO2_A,519 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,520 sizeof(unsigned int) * 8 -521 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),522 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,523 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,524 sizeof(unsigned int) * 8 -525 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),526 .suspend_vsel_reg = DA9062AA_VLDO2_B,527 .suspend = REG_FIELD(DA9062AA_LDO2_CONT,528 __builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1,529 sizeof(unsigned int) * 8 -530 __builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1),531 .oc_event = REG_FIELD(DA9062AA_STATUS_D,532 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,533 sizeof(unsigned int) * 8 -534 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),535 },536 {537 .desc.id = DA9061_ID_LDO3,538 .desc.name = "DA9061 LDO3",539 .desc.of_match = of_match_ptr("ldo3"),540 .desc.regulators_node = of_match_ptr("regulators"),541 .desc.ops = &da9062_ldo_ops,542 .desc.min_uV = (900) * 1000,543 .desc.uV_step = (50) * 1000,544 .desc.n_voltages = ((3600) - (900))/(50) + 1545 + DA9062AA_VLDO_A_MIN_SEL,546 .desc.enable_reg = DA9062AA_LDO3_CONT,547 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,548 .desc.vsel_reg = DA9062AA_VLDO3_A,549 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,550 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,551 .sleep = REG_FIELD(DA9062AA_VLDO3_A,552 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,553 sizeof(unsigned int) * 8 -554 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),555 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,556 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,557 sizeof(unsigned int) * 8 -558 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),559 .suspend_vsel_reg = DA9062AA_VLDO3_B,560 .suspend = REG_FIELD(DA9062AA_LDO3_CONT,561 __builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1,562 sizeof(unsigned int) * 8 -563 __builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1),564 .oc_event = REG_FIELD(DA9062AA_STATUS_D,565 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,566 sizeof(unsigned int) * 8 -567 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),568 },569 {570 .desc.id = DA9061_ID_LDO4,571 .desc.name = "DA9061 LDO4",572 .desc.of_match = of_match_ptr("ldo4"),573 .desc.regulators_node = of_match_ptr("regulators"),574 .desc.ops = &da9062_ldo_ops,575 .desc.min_uV = (900) * 1000,576 .desc.uV_step = (50) * 1000,577 .desc.n_voltages = ((3600) - (900))/(50) + 1578 + DA9062AA_VLDO_A_MIN_SEL,579 .desc.enable_reg = DA9062AA_LDO4_CONT,580 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,581 .desc.vsel_reg = DA9062AA_VLDO4_A,582 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,583 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,584 .sleep = REG_FIELD(DA9062AA_VLDO4_A,585 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,586 sizeof(unsigned int) * 8 -587 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),588 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,589 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,590 sizeof(unsigned int) * 8 -591 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),592 .suspend_vsel_reg = DA9062AA_VLDO4_B,593 .suspend = REG_FIELD(DA9062AA_LDO4_CONT,594 __builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1,595 sizeof(unsigned int) * 8 -596 __builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1),597 .oc_event = REG_FIELD(DA9062AA_STATUS_D,598 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,599 sizeof(unsigned int) * 8 -600 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),601 },602};603 604/* DA9062 Regulator information */605static const struct da9062_regulator_info local_da9062_regulator_info[] = {606 {607 .desc.id = DA9062_ID_BUCK1,608 .desc.name = "DA9062 BUCK1",609 .desc.of_match = of_match_ptr("buck1"),610 .desc.regulators_node = of_match_ptr("regulators"),611 .desc.ops = &da9062_buck_ops,612 .desc.min_uV = (300) * 1000,613 .desc.uV_step = (10) * 1000,614 .desc.n_voltages = ((1570) - (300))/(10) + 1,615 .desc.curr_table = da9062_buck_a_limits,616 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),617 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,618 .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK,619 .desc.enable_reg = DA9062AA_BUCK1_CONT,620 .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,621 .desc.vsel_reg = DA9062AA_VBUCK1_A,622 .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,623 .desc.linear_min_sel = 0,624 .desc.of_map_mode = da9062_map_buck_mode,625 .sleep = REG_FIELD(DA9062AA_VBUCK1_A,626 __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,627 sizeof(unsigned int) * 8 -628 __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),629 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,630 __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,631 sizeof(unsigned int) * 8 -632 __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),633 .suspend_vsel_reg = DA9062AA_VBUCK1_B,634 .mode = REG_FIELD(DA9062AA_BUCK1_CFG,635 __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,636 sizeof(unsigned int) * 8 -637 __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),638 .suspend = REG_FIELD(DA9062AA_BUCK1_CONT,639 __builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1,640 sizeof(unsigned int) * 8 -641 __builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1),642 },643 {644 .desc.id = DA9062_ID_BUCK2,645 .desc.name = "DA9062 BUCK2",646 .desc.of_match = of_match_ptr("buck2"),647 .desc.regulators_node = of_match_ptr("regulators"),648 .desc.ops = &da9062_buck_ops,649 .desc.min_uV = (300) * 1000,650 .desc.uV_step = (10) * 1000,651 .desc.n_voltages = ((1570) - (300))/(10) + 1,652 .desc.curr_table = da9062_buck_a_limits,653 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),654 .desc.csel_reg = DA9062AA_BUCK_ILIM_C,655 .desc.csel_mask = DA9062AA_BUCK2_ILIM_MASK,656 .desc.enable_reg = DA9062AA_BUCK2_CONT,657 .desc.enable_mask = DA9062AA_BUCK2_EN_MASK,658 .desc.vsel_reg = DA9062AA_VBUCK2_A,659 .desc.vsel_mask = DA9062AA_VBUCK2_A_MASK,660 .desc.linear_min_sel = 0,661 .desc.of_map_mode = da9062_map_buck_mode,662 .sleep = REG_FIELD(DA9062AA_VBUCK2_A,663 __builtin_ffs((int)DA9062AA_BUCK2_SL_A_MASK) - 1,664 sizeof(unsigned int) * 8 -665 __builtin_clz((DA9062AA_BUCK2_SL_A_MASK)) - 1),666 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK2_B,667 __builtin_ffs((int)DA9062AA_BUCK2_SL_B_MASK) - 1,668 sizeof(unsigned int) * 8 -669 __builtin_clz((DA9062AA_BUCK2_SL_B_MASK)) - 1),670 .suspend_vsel_reg = DA9062AA_VBUCK2_B,671 .mode = REG_FIELD(DA9062AA_BUCK2_CFG,672 __builtin_ffs((int)DA9062AA_BUCK2_MODE_MASK) - 1,673 sizeof(unsigned int) * 8 -674 __builtin_clz((DA9062AA_BUCK2_MODE_MASK)) - 1),675 .suspend = REG_FIELD(DA9062AA_BUCK2_CONT,676 __builtin_ffs((int)DA9062AA_BUCK2_CONF_MASK) - 1,677 sizeof(unsigned int) * 8 -678 __builtin_clz(DA9062AA_BUCK2_CONF_MASK) - 1),679 },680 {681 .desc.id = DA9062_ID_BUCK3,682 .desc.name = "DA9062 BUCK3",683 .desc.of_match = of_match_ptr("buck3"),684 .desc.regulators_node = of_match_ptr("regulators"),685 .desc.ops = &da9062_buck_ops,686 .desc.min_uV = (800) * 1000,687 .desc.uV_step = (20) * 1000,688 .desc.n_voltages = ((3340) - (800))/(20) + 1,689 .desc.curr_table = da9062_buck_b_limits,690 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),691 .desc.csel_reg = DA9062AA_BUCK_ILIM_A,692 .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK,693 .desc.enable_reg = DA9062AA_BUCK3_CONT,694 .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,695 .desc.vsel_reg = DA9062AA_VBUCK3_A,696 .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,697 .desc.linear_min_sel = 0,698 .desc.of_map_mode = da9062_map_buck_mode,699 .sleep = REG_FIELD(DA9062AA_VBUCK3_A,700 __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,701 sizeof(unsigned int) * 8 -702 __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),703 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,704 __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,705 sizeof(unsigned int) * 8 -706 __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),707 .suspend_vsel_reg = DA9062AA_VBUCK3_B,708 .mode = REG_FIELD(DA9062AA_BUCK3_CFG,709 __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,710 sizeof(unsigned int) * 8 -711 __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),712 .suspend = REG_FIELD(DA9062AA_BUCK3_CONT,713 __builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1,714 sizeof(unsigned int) * 8 -715 __builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1),716 },717 {718 .desc.id = DA9062_ID_BUCK4,719 .desc.name = "DA9062 BUCK4",720 .desc.of_match = of_match_ptr("buck4"),721 .desc.regulators_node = of_match_ptr("regulators"),722 .desc.ops = &da9062_buck_ops,723 .desc.min_uV = (530) * 1000,724 .desc.uV_step = (10) * 1000,725 .desc.n_voltages = ((1800) - (530))/(10) + 1,726 .desc.curr_table = da9062_buck_a_limits,727 .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),728 .desc.csel_reg = DA9062AA_BUCK_ILIM_B,729 .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK,730 .desc.enable_reg = DA9062AA_BUCK4_CONT,731 .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,732 .desc.vsel_reg = DA9062AA_VBUCK4_A,733 .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,734 .desc.linear_min_sel = 0,735 .desc.of_map_mode = da9062_map_buck_mode,736 .sleep = REG_FIELD(DA9062AA_VBUCK4_A,737 __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,738 sizeof(unsigned int) * 8 -739 __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),740 .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,741 __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,742 sizeof(unsigned int) * 8 -743 __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),744 .suspend_vsel_reg = DA9062AA_VBUCK4_B,745 .mode = REG_FIELD(DA9062AA_BUCK4_CFG,746 __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,747 sizeof(unsigned int) * 8 -748 __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),749 .suspend = REG_FIELD(DA9062AA_BUCK4_CONT,750 __builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1,751 sizeof(unsigned int) * 8 -752 __builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1),753 },754 {755 .desc.id = DA9062_ID_LDO1,756 .desc.name = "DA9062 LDO1",757 .desc.of_match = of_match_ptr("ldo1"),758 .desc.regulators_node = of_match_ptr("regulators"),759 .desc.ops = &da9062_ldo_ops,760 .desc.min_uV = (900) * 1000,761 .desc.uV_step = (50) * 1000,762 .desc.n_voltages = ((3600) - (900))/(50) + 1763 + DA9062AA_VLDO_A_MIN_SEL,764 .desc.enable_reg = DA9062AA_LDO1_CONT,765 .desc.enable_mask = DA9062AA_LDO1_EN_MASK,766 .desc.vsel_reg = DA9062AA_VLDO1_A,767 .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,768 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,769 .sleep = REG_FIELD(DA9062AA_VLDO1_A,770 __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,771 sizeof(unsigned int) * 8 -772 __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),773 .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,774 __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,775 sizeof(unsigned int) * 8 -776 __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),777 .suspend_vsel_reg = DA9062AA_VLDO1_B,778 .suspend = REG_FIELD(DA9062AA_LDO1_CONT,779 __builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1,780 sizeof(unsigned int) * 8 -781 __builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1),782 .oc_event = REG_FIELD(DA9062AA_STATUS_D,783 __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,784 sizeof(unsigned int) * 8 -785 __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),786 },787 {788 .desc.id = DA9062_ID_LDO2,789 .desc.name = "DA9062 LDO2",790 .desc.of_match = of_match_ptr("ldo2"),791 .desc.regulators_node = of_match_ptr("regulators"),792 .desc.ops = &da9062_ldo_ops,793 .desc.min_uV = (900) * 1000,794 .desc.uV_step = (50) * 1000,795 .desc.n_voltages = ((3600) - (900))/(50) + 1796 + DA9062AA_VLDO_A_MIN_SEL,797 .desc.enable_reg = DA9062AA_LDO2_CONT,798 .desc.enable_mask = DA9062AA_LDO2_EN_MASK,799 .desc.vsel_reg = DA9062AA_VLDO2_A,800 .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,801 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,802 .sleep = REG_FIELD(DA9062AA_VLDO2_A,803 __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,804 sizeof(unsigned int) * 8 -805 __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),806 .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,807 __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,808 sizeof(unsigned int) * 8 -809 __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),810 .suspend_vsel_reg = DA9062AA_VLDO2_B,811 .suspend = REG_FIELD(DA9062AA_LDO2_CONT,812 __builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1,813 sizeof(unsigned int) * 8 -814 __builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1),815 .oc_event = REG_FIELD(DA9062AA_STATUS_D,816 __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,817 sizeof(unsigned int) * 8 -818 __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),819 },820 {821 .desc.id = DA9062_ID_LDO3,822 .desc.name = "DA9062 LDO3",823 .desc.of_match = of_match_ptr("ldo3"),824 .desc.regulators_node = of_match_ptr("regulators"),825 .desc.ops = &da9062_ldo_ops,826 .desc.min_uV = (900) * 1000,827 .desc.uV_step = (50) * 1000,828 .desc.n_voltages = ((3600) - (900))/(50) + 1829 + DA9062AA_VLDO_A_MIN_SEL,830 .desc.enable_reg = DA9062AA_LDO3_CONT,831 .desc.enable_mask = DA9062AA_LDO3_EN_MASK,832 .desc.vsel_reg = DA9062AA_VLDO3_A,833 .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,834 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,835 .sleep = REG_FIELD(DA9062AA_VLDO3_A,836 __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,837 sizeof(unsigned int) * 8 -838 __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),839 .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,840 __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,841 sizeof(unsigned int) * 8 -842 __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),843 .suspend_vsel_reg = DA9062AA_VLDO3_B,844 .suspend = REG_FIELD(DA9062AA_LDO3_CONT,845 __builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1,846 sizeof(unsigned int) * 8 -847 __builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1),848 .oc_event = REG_FIELD(DA9062AA_STATUS_D,849 __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,850 sizeof(unsigned int) * 8 -851 __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),852 },853 {854 .desc.id = DA9062_ID_LDO4,855 .desc.name = "DA9062 LDO4",856 .desc.of_match = of_match_ptr("ldo4"),857 .desc.regulators_node = of_match_ptr("regulators"),858 .desc.ops = &da9062_ldo_ops,859 .desc.min_uV = (900) * 1000,860 .desc.uV_step = (50) * 1000,861 .desc.n_voltages = ((3600) - (900))/(50) + 1862 + DA9062AA_VLDO_A_MIN_SEL,863 .desc.enable_reg = DA9062AA_LDO4_CONT,864 .desc.enable_mask = DA9062AA_LDO4_EN_MASK,865 .desc.vsel_reg = DA9062AA_VLDO4_A,866 .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,867 .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL,868 .sleep = REG_FIELD(DA9062AA_VLDO4_A,869 __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,870 sizeof(unsigned int) * 8 -871 __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),872 .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,873 __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,874 sizeof(unsigned int) * 8 -875 __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),876 .suspend_vsel_reg = DA9062AA_VLDO4_B,877 .suspend = REG_FIELD(DA9062AA_LDO4_CONT,878 __builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1,879 sizeof(unsigned int) * 8 -880 __builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1),881 .oc_event = REG_FIELD(DA9062AA_STATUS_D,882 __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,883 sizeof(unsigned int) * 8 -884 __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),885 },886};887 888/* Regulator interrupt handlers */889static irqreturn_t da9062_ldo_lim_event(int irq, void *data)890{891 struct da9062_regulators *regulators = data;892 struct da9062 *hw = regulators->regulator[0].hw;893 struct da9062_regulator *regl;894 int handled = IRQ_NONE;895 int bits, i, ret;896 897 ret = regmap_read(hw->regmap, DA9062AA_STATUS_D, &bits);898 if (ret < 0) {899 dev_err(hw->dev,900 "Failed to read LDO overcurrent indicator\n");901 goto ldo_lim_error;902 }903 904 for (i = regulators->n_regulators - 1; i >= 0; i--) {905 regl = ®ulators->regulator[i];906 if (regl->info->oc_event.reg != DA9062AA_STATUS_D)907 continue;908 909 if (BIT(regl->info->oc_event.lsb) & bits) {910 regulator_notifier_call_chain(regl->rdev,911 REGULATOR_EVENT_OVER_CURRENT, NULL);912 handled = IRQ_HANDLED;913 }914 }915 916ldo_lim_error:917 return handled;918}919 920static int da9062_regulator_probe(struct platform_device *pdev)921{922 struct da9062 *chip = dev_get_drvdata(pdev->dev.parent);923 struct da9062_regulators *regulators;924 struct da9062_regulator *regl;925 struct regulator_config config = { };926 const struct da9062_regulator_info *rinfo;927 int n, ret;928 int max_regulators;929 930 switch (chip->chip_type) {931 case COMPAT_TYPE_DA9061:932 max_regulators = DA9061_MAX_REGULATORS;933 rinfo = local_da9061_regulator_info;934 break;935 case COMPAT_TYPE_DA9062:936 max_regulators = DA9062_MAX_REGULATORS;937 rinfo = local_da9062_regulator_info;938 break;939 default:940 dev_err(chip->dev, "Unrecognised chip type\n");941 return -ENODEV;942 }943 944 /* Allocate memory required by usable regulators */945 regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, regulator,946 max_regulators), GFP_KERNEL);947 if (!regulators)948 return -ENOMEM;949 950 regulators->n_regulators = max_regulators;951 platform_set_drvdata(pdev, regulators);952 953 for (n = 0; n < regulators->n_regulators; n++) {954 /* Initialise regulator structure */955 regl = ®ulators->regulator[n];956 regl->hw = chip;957 regl->info = &rinfo[n];958 regl->desc = regl->info->desc;959 regl->desc.type = REGULATOR_VOLTAGE;960 regl->desc.owner = THIS_MODULE;961 962 if (regl->info->mode.reg) {963 regl->mode = devm_regmap_field_alloc(964 &pdev->dev,965 chip->regmap,966 regl->info->mode);967 if (IS_ERR(regl->mode))968 return PTR_ERR(regl->mode);969 }970 971 if (regl->info->suspend.reg) {972 regl->suspend = devm_regmap_field_alloc(973 &pdev->dev,974 chip->regmap,975 regl->info->suspend);976 if (IS_ERR(regl->suspend))977 return PTR_ERR(regl->suspend);978 }979 980 if (regl->info->sleep.reg) {981 regl->sleep = devm_regmap_field_alloc(982 &pdev->dev,983 chip->regmap,984 regl->info->sleep);985 if (IS_ERR(regl->sleep))986 return PTR_ERR(regl->sleep);987 }988 989 if (regl->info->suspend_sleep.reg) {990 regl->suspend_sleep = devm_regmap_field_alloc(991 &pdev->dev,992 chip->regmap,993 regl->info->suspend_sleep);994 if (IS_ERR(regl->suspend_sleep))995 return PTR_ERR(regl->suspend_sleep);996 }997 998 /* Register regulator */999 memset(&config, 0, sizeof(config));1000 config.dev = chip->dev;1001 config.driver_data = regl;1002 config.regmap = chip->regmap;1003 1004 regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc,1005 &config);1006 if (IS_ERR(regl->rdev)) {1007 dev_err(&pdev->dev,1008 "Failed to register %s regulator\n",1009 regl->desc.name);1010 return PTR_ERR(regl->rdev);1011 }1012 }1013 1014 /* LDOs overcurrent event support */1015 regulators->irq_ldo_lim = platform_get_irq_byname_optional(pdev, "LDO_LIM");1016 if (regulators->irq_ldo_lim < 0)1017 return 0;1018 1019 ret = devm_request_threaded_irq(&pdev->dev, regulators->irq_ldo_lim,1020 NULL, da9062_ldo_lim_event,1021 IRQF_TRIGGER_LOW | IRQF_ONESHOT,1022 "LDO_LIM", regulators);1023 if (ret) {1024 dev_warn(&pdev->dev,1025 "Failed to request LDO_LIM IRQ.\n");1026 regulators->irq_ldo_lim = -ENXIO;1027 }1028 1029 return 0;1030}1031 1032static struct platform_driver da9062_regulator_driver = {1033 .driver = {1034 .name = "da9062-regulators",1035 .probe_type = PROBE_PREFER_ASYNCHRONOUS,1036 },1037 .probe = da9062_regulator_probe,1038};1039 1040static int __init da9062_regulator_init(void)1041{1042 return platform_driver_register(&da9062_regulator_driver);1043}1044subsys_initcall(da9062_regulator_init);1045 1046static void __exit da9062_regulator_cleanup(void)1047{1048 platform_driver_unregister(&da9062_regulator_driver);1049}1050module_exit(da9062_regulator_cleanup);1051 1052/* Module information */1053MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>");1054MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061");1055MODULE_LICENSE("GPL");1056MODULE_ALIAS("platform:da9062-regulators");1057