1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* NXP PCF50633 PMIC Driver 3 * 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 by 9 * Harald Welte and Andy Green and Werner Almesberger 10 */ 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 39 static 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 49 static 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 74 static 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 } 100 101 static struct platform_driver pcf50633_regulator_driver = { 102 .driver = { 103 .name = "pcf50633-regulator", 104 }, 105 .probe = pcf50633_regulator_probe, 106 }; 107 108 static int __init pcf50633_regulator_init(void) 109 { 110 return platform_driver_register(&pcf50633_regulator_driver); 111 } 112 subsys_initcall(pcf50633_regulator_init); 113 114 static void __exit pcf50633_regulator_exit(void) 115 { 116 platform_driver_unregister(&pcf50633_regulator_driver); 117 } 118 module_exit(pcf50633_regulator_exit); 119 120 MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>"); 121 MODULE_DESCRIPTION("PCF50633 regulator driver"); 122 MODULE_LICENSE("GPL"); 123 MODULE_ALIAS("platform:pcf50633-regulator"); 124