1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Regulator driver for TI TPS65912x PMICs 4 * 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 by 9 * 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 19 enum 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 41 static const struct linear_range tps65912_dcdc_ranges[] = { 42 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000), 43 }; 44 45 static 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 */ 52 static 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 */ 62 static 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 72 static 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 tps65912_regulator_probe(struct platform_device * pdev)117 static 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 } 143 144 static const struct platform_device_id tps65912_regulator_id_table[] = { 145 { "tps65912-regulator", }, 146 { /* sentinel */ } 147 }; 148 MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table); 149 150 static 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 }; 158 module_platform_driver(tps65912_regulator_driver); 159 160 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); 161 MODULE_DESCRIPTION("TPS65912 voltage regulator driver"); 162 MODULE_LICENSE("GPL v2"); 163