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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Regulators driver for Marvell 88PM86074 *5 * Copyright (C) 2009 Marvell International Ltd.6 * Haojian Zhuang <haojian.zhuang@marvell.com>7 */8#include <linux/kernel.h>9#include <linux/init.h>10#include <linux/err.h>11#include <linux/of.h>12#include <linux/regulator/of_regulator.h>13#include <linux/platform_device.h>14#include <linux/regulator/driver.h>15#include <linux/regulator/machine.h>16#include <linux/mfd/88pm860x.h>17#include <linux/module.h>18 19struct pm8607_regulator_info {20 struct regulator_desc desc;21 22 unsigned int *vol_suspend;23 24 int slope_double;25};26 27static const unsigned int BUCK1_table[] = {28 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,29 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,30 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,31 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,32 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,33 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,34 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,35 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,36};37 38static const unsigned int BUCK1_suspend_table[] = {39 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,40 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,41 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,42 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,43 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,44 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,45 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,46 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,47};48 49static const unsigned int BUCK2_table[] = {50 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,51 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,52 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,53 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,54 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,55 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,56 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,57 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,58};59 60static const unsigned int BUCK2_suspend_table[] = {61 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,62 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,63 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,64 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,65 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,66 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,67 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,68 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,69};70 71static const unsigned int BUCK3_table[] = {72 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,73 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,74 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,75 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,76 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,77 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,78 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,79 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,80};81 82static const unsigned int BUCK3_suspend_table[] = {83 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,84 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,85 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,86 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,87 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,88 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,89 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,90 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,91};92 93static const unsigned int LDO1_table[] = {94 1800000, 1200000, 2800000, 0,95};96 97static const unsigned int LDO1_suspend_table[] = {98 1800000, 1200000, 0, 0,99};100 101static const unsigned int LDO2_table[] = {102 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,103};104 105static const unsigned int LDO2_suspend_table[] = {106 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,107};108 109static const unsigned int LDO3_table[] = {110 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,111};112 113static const unsigned int LDO3_suspend_table[] = {114 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,115};116 117static const unsigned int LDO4_table[] = {118 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,119};120 121static const unsigned int LDO4_suspend_table[] = {122 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,123};124 125static const unsigned int LDO5_table[] = {126 2900000, 3000000, 3100000, 3300000,127};128 129static const unsigned int LDO5_suspend_table[] = {130 2900000, 0, 0, 0,131};132 133static const unsigned int LDO6_table[] = {134 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,135};136 137static const unsigned int LDO6_suspend_table[] = {138 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,139};140 141static const unsigned int LDO7_table[] = {142 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,143};144 145static const unsigned int LDO7_suspend_table[] = {146 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,147};148 149static const unsigned int LDO8_table[] = {150 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,151};152 153static const unsigned int LDO8_suspend_table[] = {154 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,155};156 157static const unsigned int LDO9_table[] = {158 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,159};160 161static const unsigned int LDO9_suspend_table[] = {162 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,163};164 165static const unsigned int LDO10_table[] = {166 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,167 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,168};169 170static const unsigned int LDO10_suspend_table[] = {171 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,172 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,173};174 175static const unsigned int LDO12_table[] = {176 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,177 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,178};179 180static const unsigned int LDO12_suspend_table[] = {181 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,182 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,183};184 185static const unsigned int LDO13_table[] = {186 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,187};188 189static const unsigned int LDO13_suspend_table[] = {190 0,191};192 193static const unsigned int LDO14_table[] = {194 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,195};196 197static const unsigned int LDO14_suspend_table[] = {198 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,199};200 201static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)202{203 struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);204 int ret;205 206 ret = regulator_list_voltage_table(rdev, index);207 if (ret < 0)208 return ret;209 210 if (info->slope_double)211 ret <<= 1;212 213 return ret;214}215 216static const struct regulator_ops pm8607_regulator_ops = {217 .list_voltage = pm8607_list_voltage,218 .set_voltage_sel = regulator_set_voltage_sel_regmap,219 .get_voltage_sel = regulator_get_voltage_sel_regmap,220 .enable = regulator_enable_regmap,221 .disable = regulator_disable_regmap,222 .is_enabled = regulator_is_enabled_regmap,223};224 225static const struct regulator_ops pm8606_preg_ops = {226 .enable = regulator_enable_regmap,227 .disable = regulator_disable_regmap,228 .is_enabled = regulator_is_enabled_regmap,229};230 231#define PM8606_PREG(ereg, ebit) \232{ \233 .desc = { \234 .name = "PREG", \235 .of_match = of_match_ptr("PREG"), \236 .regulators_node = of_match_ptr("regulators"), \237 .ops = &pm8606_preg_ops, \238 .type = REGULATOR_CURRENT, \239 .id = PM8606_ID_PREG, \240 .owner = THIS_MODULE, \241 .enable_reg = PM8606_##ereg, \242 .enable_mask = (ebit), \243 .enable_is_inverted = true, \244 }, \245}246 247#define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \248{ \249 .desc = { \250 .name = #vreg, \251 .of_match = of_match_ptr(#vreg), \252 .regulators_node = of_match_ptr("regulators"), \253 .ops = &pm8607_regulator_ops, \254 .type = REGULATOR_VOLTAGE, \255 .id = PM8607_ID_##vreg, \256 .owner = THIS_MODULE, \257 .volt_table = vreg##_table, \258 .n_voltages = ARRAY_SIZE(vreg##_table), \259 .vsel_reg = PM8607_##vreg, \260 .vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \261 .apply_reg = PM8607_##ureg, \262 .apply_bit = (ubit), \263 .enable_reg = PM8607_##ereg, \264 .enable_mask = 1 << (ebit), \265 }, \266 .slope_double = (0), \267 .vol_suspend = (unsigned int *)&vreg##_suspend_table, \268}269 270#define PM8607_LDO(_id, vreg, shift, ereg, ebit) \271{ \272 .desc = { \273 .name = "LDO" #_id, \274 .of_match = of_match_ptr("LDO" #_id), \275 .regulators_node = of_match_ptr("regulators"), \276 .ops = &pm8607_regulator_ops, \277 .type = REGULATOR_VOLTAGE, \278 .id = PM8607_ID_LDO##_id, \279 .owner = THIS_MODULE, \280 .volt_table = LDO##_id##_table, \281 .n_voltages = ARRAY_SIZE(LDO##_id##_table), \282 .vsel_reg = PM8607_##vreg, \283 .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \284 .enable_reg = PM8607_##ereg, \285 .enable_mask = 1 << (ebit), \286 }, \287 .slope_double = (0), \288 .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \289}290 291static struct pm8607_regulator_info pm8607_regulator_info[] = {292 PM8607_DVC(BUCK1, GO, BIT(0), SUPPLIES_EN11, 0),293 PM8607_DVC(BUCK2, GO, BIT(1), SUPPLIES_EN11, 1),294 PM8607_DVC(BUCK3, GO, BIT(2), SUPPLIES_EN11, 2),295 296 PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3),297 PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4),298 PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5),299 PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6),300 PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7),301 PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0),302 PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1),303 PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2),304 PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3),305 PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4),306 PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5),307 PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0),308 PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6),309};310 311static struct pm8607_regulator_info pm8606_regulator_info[] = {312 PM8606_PREG(PREREGULATORB, 5),313};314 315static int pm8607_regulator_probe(struct platform_device *pdev)316{317 struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);318 struct pm8607_regulator_info *info = NULL;319 struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev);320 struct regulator_config config = { };321 struct regulator_dev *rdev;322 struct resource *res;323 int i;324 325 res = platform_get_resource(pdev, IORESOURCE_REG, 0);326 if (res) {327 /* There're resources in 88PM8607 regulator driver */328 for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {329 info = &pm8607_regulator_info[i];330 if (info->desc.vsel_reg == res->start)331 break;332 }333 if (i == ARRAY_SIZE(pm8607_regulator_info)) {334 dev_err(&pdev->dev, "Failed to find regulator %llu\n",335 (unsigned long long)res->start);336 return -EINVAL;337 }338 } else {339 /* There's no resource in 88PM8606 PREG regulator driver */340 info = &pm8606_regulator_info[0];341 /* i is used to check regulator ID */342 i = -1;343 }344 345 /* check DVC ramp slope double */346 if ((i == PM8607_ID_BUCK3) && chip->buck3_double)347 info->slope_double = 1;348 349 config.dev = chip->dev;350 config.driver_data = info;351 352 if (pdata)353 config.init_data = pdata;354 355 if (chip->id == CHIP_PM8607)356 config.regmap = chip->regmap;357 else358 config.regmap = chip->regmap_companion;359 360 rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);361 if (IS_ERR(rdev)) {362 dev_err(&pdev->dev, "failed to register regulator %s\n",363 info->desc.name);364 return PTR_ERR(rdev);365 }366 367 platform_set_drvdata(pdev, info);368 return 0;369}370 371static const struct platform_device_id pm8607_regulator_driver_ids[] = {372 {373 .name = "88pm860x-regulator",374 .driver_data = 0,375 }, {376 .name = "88pm860x-preg",377 .driver_data = 0,378 },379 { },380};381MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids);382 383static struct platform_driver pm8607_regulator_driver = {384 .driver = {385 .name = "88pm860x-regulator",386 .probe_type = PROBE_PREFER_ASYNCHRONOUS,387 },388 .probe = pm8607_regulator_probe,389 .id_table = pm8607_regulator_driver_ids,390};391 392static int __init pm8607_regulator_init(void)393{394 return platform_driver_register(&pm8607_regulator_driver);395}396subsys_initcall(pm8607_regulator_init);397 398static void __exit pm8607_regulator_exit(void)399{400 platform_driver_unregister(&pm8607_regulator_driver);401}402module_exit(pm8607_regulator_exit);403 404MODULE_LICENSE("GPL");405MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");406MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");407MODULE_ALIAS("platform:88pm8607-regulator");408