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1// SPDX-License-Identifier: GPL-2.0-or-later2/* NXP PCF50633 PMIC Driver3 *4 * (C) 2006-2008 by Openmoko, Inc.5 * Author: Balaji Rao <balajirrao@openmoko.org>6 * All rights reserved.7 *8 * Broken down from monstrous PCF50633 driver mainly by9 * Harald Welte and Andy Green and Werner Almesberger10 */11 12#include <linux/kernel.h>13#include <linux/module.h>14#include <linux/init.h>15#include <linux/device.h>16#include <linux/err.h>17#include <linux/platform_device.h>18 19#include <linux/mfd/pcf50633/core.h>20#include <linux/mfd/pcf50633/pmic.h>21 22#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \23 { \24 .name = _name, \25 .id = PCF50633_REGULATOR_##_id, \26 .ops = &pcf50633_regulator_ops, \27 .n_voltages = _n, \28 .min_uV = _min_uV, \29 .uV_step = _uV_step, \30 .linear_min_sel = _min_sel, \31 .type = REGULATOR_VOLTAGE, \32 .owner = THIS_MODULE, \33 .vsel_reg = PCF50633_REG_##_id##OUT, \34 .vsel_mask = 0xff, \35 .enable_reg = PCF50633_REG_##_id##OUT + 1, \36 .enable_mask = PCF50633_REGULATOR_ON, \37 }38 39static const struct regulator_ops pcf50633_regulator_ops = {40 .set_voltage_sel = regulator_set_voltage_sel_regmap,41 .get_voltage_sel = regulator_get_voltage_sel_regmap,42 .list_voltage = regulator_list_voltage_linear,43 .map_voltage = regulator_map_voltage_linear,44 .enable = regulator_enable_regmap,45 .disable = regulator_disable_regmap,46 .is_enabled = regulator_is_enabled_regmap,47};48 49static const struct regulator_desc regulators[] = {50 [PCF50633_REGULATOR_AUTO] =51 PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),52 [PCF50633_REGULATOR_DOWN1] =53 PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),54 [PCF50633_REGULATOR_DOWN2] =55 PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),56 [PCF50633_REGULATOR_LDO1] =57 PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),58 [PCF50633_REGULATOR_LDO2] =59 PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),60 [PCF50633_REGULATOR_LDO3] =61 PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),62 [PCF50633_REGULATOR_LDO4] =63 PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),64 [PCF50633_REGULATOR_LDO5] =65 PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),66 [PCF50633_REGULATOR_LDO6] =67 PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),68 [PCF50633_REGULATOR_HCLDO] =69 PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),70 [PCF50633_REGULATOR_MEMLDO] =71 PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),72};73 74static int pcf50633_regulator_probe(struct platform_device *pdev)75{76 struct regulator_dev *rdev;77 struct pcf50633 *pcf;78 struct regulator_config config = { };79 80 /* Already set by core driver */81 pcf = dev_to_pcf50633(pdev->dev.parent);82 83 config.dev = &pdev->dev;84 config.init_data = dev_get_platdata(&pdev->dev);85 config.driver_data = pcf;86 config.regmap = pcf->regmap;87 88 rdev = devm_regulator_register(&pdev->dev, ®ulators[pdev->id],89 &config);90 if (IS_ERR(rdev))91 return PTR_ERR(rdev);92 93 platform_set_drvdata(pdev, rdev);94 95 if (pcf->pdata->regulator_registered)96 pcf->pdata->regulator_registered(pcf, pdev->id);97 98 return 0;99}100 101static struct platform_driver pcf50633_regulator_driver = {102 .driver = {103 .name = "pcf50633-regulator",104 .probe_type = PROBE_PREFER_ASYNCHRONOUS,105 },106 .probe = pcf50633_regulator_probe,107};108 109static int __init pcf50633_regulator_init(void)110{111 return platform_driver_register(&pcf50633_regulator_driver);112}113subsys_initcall(pcf50633_regulator_init);114 115static void __exit pcf50633_regulator_exit(void)116{117 platform_driver_unregister(&pcf50633_regulator_driver);118}119module_exit(pcf50633_regulator_exit);120 121MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");122MODULE_DESCRIPTION("PCF50633 regulator driver");123MODULE_LICENSE("GPL");124MODULE_ALIAS("platform:pcf50633-regulator");125