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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Regulator driver for Ricoh RN5T618 PMIC4 *5 * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>6 */7 8#include <linux/mfd/rn5t618.h>9#include <linux/module.h>10#include <linux/of.h>11#include <linux/platform_device.h>12#include <linux/regmap.h>13#include <linux/regulator/driver.h>14#include <linux/regulator/of_regulator.h>15 16static const struct regulator_ops rn5t618_reg_ops = {17 .enable = regulator_enable_regmap,18 .disable = regulator_disable_regmap,19 .is_enabled = regulator_is_enabled_regmap,20 .set_voltage_sel = regulator_set_voltage_sel_regmap,21 .get_voltage_sel = regulator_get_voltage_sel_regmap,22 .list_voltage = regulator_list_voltage_linear,23};24 25#define REG(rid, ereg, emask, vreg, vmask, min, max, step) \26 { \27 .name = #rid, \28 .of_match = of_match_ptr(#rid), \29 .regulators_node = of_match_ptr("regulators"), \30 .id = RN5T618_##rid, \31 .type = REGULATOR_VOLTAGE, \32 .owner = THIS_MODULE, \33 .ops = &rn5t618_reg_ops, \34 .n_voltages = ((max) - (min)) / (step) + 1, \35 .min_uV = (min), \36 .uV_step = (step), \37 .enable_reg = RN5T618_##ereg, \38 .enable_mask = (emask), \39 .vsel_reg = RN5T618_##vreg, \40 .vsel_mask = (vmask), \41 }42 43static const struct regulator_desc rn5t567_regulators[] = {44 /* DCDC */45 REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),46 REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),47 REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),48 REG(DCDC4, DC4CTL, BIT(0), DC4DAC, 0xff, 600000, 3500000, 12500),49 /* LDO */50 REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),51 REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),52 REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),53 REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),54 REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),55 /* LDO RTC */56 REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1200000, 3500000, 25000),57 REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),58};59 60static const struct regulator_desc rn5t618_regulators[] = {61 /* DCDC */62 REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),63 REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),64 REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),65 /* LDO */66 REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),67 REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),68 REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),69 REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),70 REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),71 /* LDO RTC */72 REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),73 REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),74};75 76static const struct regulator_desc rc5t619_regulators[] = {77 /* DCDC */78 REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),79 REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),80 REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),81 REG(DCDC4, DC4CTL, BIT(0), DC4DAC, 0xff, 600000, 3500000, 12500),82 REG(DCDC5, DC5CTL, BIT(0), DC5DAC, 0xff, 600000, 3500000, 12500),83 /* LDO */84 REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),85 REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),86 REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 900000, 3500000, 25000),87 REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),88 REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 600000, 3500000, 25000),89 REG(LDO6, LDOEN1, BIT(5), LDO6DAC, 0x7f, 600000, 3500000, 25000),90 REG(LDO7, LDOEN1, BIT(6), LDO7DAC, 0x7f, 900000, 3500000, 25000),91 REG(LDO8, LDOEN1, BIT(7), LDO8DAC, 0x7f, 900000, 3500000, 25000),92 REG(LDO9, LDOEN2, BIT(0), LDO9DAC, 0x7f, 900000, 3500000, 25000),93 REG(LDO10, LDOEN2, BIT(1), LDO10DAC, 0x7f, 900000, 3500000, 25000),94 /* LDO RTC */95 REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),96 REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),97};98 99static int rn5t618_regulator_probe(struct platform_device *pdev)100{101 struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);102 struct regulator_config config = { };103 struct regulator_dev *rdev;104 const struct regulator_desc *regulators;105 int i;106 int num_regulators = 0;107 108 switch (rn5t618->variant) {109 case RN5T567:110 regulators = rn5t567_regulators;111 num_regulators = ARRAY_SIZE(rn5t567_regulators);112 break;113 case RN5T618:114 regulators = rn5t618_regulators;115 num_regulators = ARRAY_SIZE(rn5t618_regulators);116 break;117 case RC5T619:118 regulators = rc5t619_regulators;119 num_regulators = ARRAY_SIZE(rc5t619_regulators);120 break;121 default:122 return -EINVAL;123 }124 125 config.dev = pdev->dev.parent;126 config.regmap = rn5t618->regmap;127 128 for (i = 0; i < num_regulators; i++) {129 rdev = devm_regulator_register(&pdev->dev,130 ®ulators[i],131 &config);132 if (IS_ERR(rdev)) {133 dev_err(&pdev->dev, "failed to register %s regulator\n",134 regulators[i].name);135 return PTR_ERR(rdev);136 }137 }138 139 return 0;140}141 142static struct platform_driver rn5t618_regulator_driver = {143 .probe = rn5t618_regulator_probe,144 .driver = {145 .name = "rn5t618-regulator",146 .probe_type = PROBE_PREFER_ASYNCHRONOUS,147 },148};149 150module_platform_driver(rn5t618_regulator_driver);151 152MODULE_ALIAS("platform:rn5t618-regulator");153MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");154MODULE_DESCRIPTION("RN5T618 regulator driver");155MODULE_LICENSE("GPL v2");156