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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Regulator driver for TI TPS65912x PMICs4 *5 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/6 * Andrew F. Davis <afd@ti.com>7 *8 * Based on the TPS65218 driver and the previous TPS65912 driver by9 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>10 */11 12#include <linux/module.h>13#include <linux/mod_devicetable.h>14#include <linux/platform_device.h>15#include <linux/regulator/driver.h>16 17#include <linux/mfd/tps65912.h>18 19enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,20 LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };21 22#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \23 [_id] = { \24 .name = _name, \25 .of_match = _of_match, \26 .regulators_node = "regulators", \27 .id = _id, \28 .ops = &_ops, \29 .n_voltages = 64, \30 .type = REGULATOR_VOLTAGE, \31 .owner = THIS_MODULE, \32 .vsel_reg = _vr, \33 .vsel_mask = 0x3f, \34 .enable_reg = _er, \35 .enable_mask = BIT(7), \36 .volt_table = NULL, \37 .linear_ranges = _lr, \38 .n_linear_ranges = ARRAY_SIZE(_lr), \39 }40 41static const struct linear_range tps65912_dcdc_ranges[] = {42 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),43};44 45static const struct linear_range tps65912_ldo_ranges[] = {46 REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),47 REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),48 REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),49};50 51/* Operations permitted on DCDCx */52static const struct regulator_ops tps65912_ops_dcdc = {53 .is_enabled = regulator_is_enabled_regmap,54 .enable = regulator_enable_regmap,55 .disable = regulator_disable_regmap,56 .get_voltage_sel = regulator_get_voltage_sel_regmap,57 .set_voltage_sel = regulator_set_voltage_sel_regmap,58 .list_voltage = regulator_list_voltage_linear_range,59};60 61/* Operations permitted on LDOx */62static const struct regulator_ops tps65912_ops_ldo = {63 .is_enabled = regulator_is_enabled_regmap,64 .enable = regulator_enable_regmap,65 .disable = regulator_disable_regmap,66 .get_voltage_sel = regulator_get_voltage_sel_regmap,67 .set_voltage_sel = regulator_set_voltage_sel_regmap,68 .list_voltage = regulator_list_voltage_linear_range,69 .map_voltage = regulator_map_voltage_linear_range,70};71 72static const struct regulator_desc regulators[] = {73 TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,74 TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,75 tps65912_dcdc_ranges),76 TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,77 TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,78 tps65912_dcdc_ranges),79 TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,80 TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,81 tps65912_dcdc_ranges),82 TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,83 TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,84 tps65912_dcdc_ranges),85 TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,86 TPS65912_LDO1_OP, TPS65912_LDO1_AVS,87 tps65912_ldo_ranges),88 TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,89 TPS65912_LDO2_OP, TPS65912_LDO2_AVS,90 tps65912_ldo_ranges),91 TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,92 TPS65912_LDO3_OP, TPS65912_LDO3_AVS,93 tps65912_ldo_ranges),94 TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,95 TPS65912_LDO4_OP, TPS65912_LDO4_AVS,96 tps65912_ldo_ranges),97 TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,98 TPS65912_LDO5, TPS65912_LDO5,99 tps65912_ldo_ranges),100 TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,101 TPS65912_LDO6, TPS65912_LDO6,102 tps65912_ldo_ranges),103 TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,104 TPS65912_LDO7, TPS65912_LDO7,105 tps65912_ldo_ranges),106 TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,107 TPS65912_LDO8, TPS65912_LDO8,108 tps65912_ldo_ranges),109 TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,110 TPS65912_LDO9, TPS65912_LDO9,111 tps65912_ldo_ranges),112 TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,113 TPS65912_LDO10, TPS65912_LDO10,114 tps65912_ldo_ranges),115};116 117static int tps65912_regulator_probe(struct platform_device *pdev)118{119 struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);120 struct regulator_config config = { };121 struct regulator_dev *rdev;122 int i;123 124 platform_set_drvdata(pdev, tps);125 126 config.dev = &pdev->dev;127 config.driver_data = tps;128 config.dev->of_node = tps->dev->of_node;129 config.regmap = tps->regmap;130 131 for (i = 0; i < ARRAY_SIZE(regulators); i++) {132 rdev = devm_regulator_register(&pdev->dev, ®ulators[i],133 &config);134 if (IS_ERR(rdev)) {135 dev_err(tps->dev, "failed to register %s regulator\n",136 pdev->name);137 return PTR_ERR(rdev);138 }139 }140 141 return 0;142}143 144static const struct platform_device_id tps65912_regulator_id_table[] = {145 { "tps65912-regulator", },146 { /* sentinel */ }147};148MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);149 150static struct platform_driver tps65912_regulator_driver = {151 .driver = {152 .name = "tps65912-regulator",153 .probe_type = PROBE_PREFER_ASYNCHRONOUS,154 },155 .probe = tps65912_regulator_probe,156 .id_table = tps65912_regulator_id_table,157};158module_platform_driver(tps65912_regulator_driver);159 160MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");161MODULE_DESCRIPTION("TPS65912 voltage regulator driver");162MODULE_LICENSE("GPL v2");163