drivers/regulator/tps65912-regulator.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Regulator driver for TI TPS65912x PMICs
0004  *
0005  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
0006  *  Andrew F. Davis <afd@ti.com>
0007  *
0008  * Based on the TPS65218 driver and the previous TPS65912 driver by
0009  * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
0010  */
0011
0012 #include <linux/module.h>
0013 #include <linux/mod_devicetable.h>
0014 #include <linux/platform_device.h>
0015 #include <linux/regulator/driver.h>
0016
0017 #include <linux/mfd/tps65912.h>
0018
0019 enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3,
0020     LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 };
0021
0022 #define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr)  \
0023     [_id] = {                           \
0024         .name           = _name,            \
0025         .of_match       = _of_match,            \
0026         .regulators_node    = "regulators",         \
0027         .id         = _id,              \
0028         .ops            = &_ops,            \
0029         .n_voltages     = 64,               \
0030         .type           = REGULATOR_VOLTAGE,        \
0031         .owner          = THIS_MODULE,          \
0032         .vsel_reg       = _vr,              \
0033         .vsel_mask      = 0x3f,             \
0034         .enable_reg     = _er,              \
0035         .enable_mask        = BIT(7),           \
0036         .volt_table     = NULL,             \
0037         .linear_ranges      = _lr,              \
0038         .n_linear_ranges    = ARRAY_SIZE(_lr),      \
0039     }
0040
0041 static const struct linear_range tps65912_dcdc_ranges[] = {
0042     REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000),
0043 };
0044
0045 static const struct linear_range tps65912_ldo_ranges[] = {
0046     REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000),
0047     REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000),
0048     REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000),
0049 };
0050
0051 /* Operations permitted on DCDCx */
0052 static const struct regulator_ops tps65912_ops_dcdc = {
0053     .is_enabled     = regulator_is_enabled_regmap,
0054     .enable         = regulator_enable_regmap,
0055     .disable        = regulator_disable_regmap,
0056     .get_voltage_sel    = regulator_get_voltage_sel_regmap,
0057     .set_voltage_sel    = regulator_set_voltage_sel_regmap,
0058     .list_voltage       = regulator_list_voltage_linear_range,
0059 };
0060
0061 /* Operations permitted on LDOx */
0062 static const struct regulator_ops tps65912_ops_ldo = {
0063     .is_enabled     = regulator_is_enabled_regmap,
0064     .enable         = regulator_enable_regmap,
0065     .disable        = regulator_disable_regmap,
0066     .get_voltage_sel    = regulator_get_voltage_sel_regmap,
0067     .set_voltage_sel    = regulator_set_voltage_sel_regmap,
0068     .list_voltage       = regulator_list_voltage_linear_range,
0069     .map_voltage        = regulator_map_voltage_linear_range,
0070 };
0071
0072 static const struct regulator_desc regulators[] = {
0073     TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc,
0074                TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL,
0075                tps65912_dcdc_ranges),
0076     TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc,
0077                TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL,
0078                tps65912_dcdc_ranges),
0079     TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc,
0080                TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL,
0081                tps65912_dcdc_ranges),
0082     TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc,
0083                TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL,
0084                tps65912_dcdc_ranges),
0085     TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo,
0086                TPS65912_LDO1_OP, TPS65912_LDO1_AVS,
0087                tps65912_ldo_ranges),
0088     TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo,
0089                TPS65912_LDO2_OP, TPS65912_LDO2_AVS,
0090                tps65912_ldo_ranges),
0091     TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo,
0092                TPS65912_LDO3_OP, TPS65912_LDO3_AVS,
0093                tps65912_ldo_ranges),
0094     TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo,
0095                TPS65912_LDO4_OP, TPS65912_LDO4_AVS,
0096                tps65912_ldo_ranges),
0097     TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo,
0098                TPS65912_LDO5, TPS65912_LDO5,
0099                tps65912_ldo_ranges),
0100     TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo,
0101                TPS65912_LDO6, TPS65912_LDO6,
0102                tps65912_ldo_ranges),
0103     TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo,
0104                TPS65912_LDO7, TPS65912_LDO7,
0105                tps65912_ldo_ranges),
0106     TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo,
0107                TPS65912_LDO8, TPS65912_LDO8,
0108                tps65912_ldo_ranges),
0109     TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo,
0110                TPS65912_LDO9, TPS65912_LDO9,
0111                tps65912_ldo_ranges),
0112     TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo,
0113                TPS65912_LDO10, TPS65912_LDO10,
0114                tps65912_ldo_ranges),
0115 };
0116
0117 static int tps65912_regulator_probe(struct platform_device *pdev)
0118 {
0119     struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent);
0120     struct regulator_config config = { };
0121     struct regulator_dev *rdev;
0122     int i;
0123
0124     platform_set_drvdata(pdev, tps);
0125
0126     config.dev = &pdev->dev;
0127     config.driver_data = tps;
0128     config.dev->of_node = tps->dev->of_node;
0129     config.regmap = tps->regmap;
0130
0131     for (i = 0; i < ARRAY_SIZE(regulators); i++) {
0132         rdev = devm_regulator_register(&pdev->dev, &regulators[i],
0133                            &config);
0134         if (IS_ERR(rdev)) {
0135             dev_err(tps->dev, "failed to register %s regulator\n",
0136                 pdev->name);
0137             return PTR_ERR(rdev);
0138         }
0139     }
0140
0141     return 0;
0142 }
0143
0144 static const struct platform_device_id tps65912_regulator_id_table[] = {
0145     { "tps65912-regulator", },
0146     { /* sentinel */ }
0147 };
0148 MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table);
0149
0150 static struct platform_driver tps65912_regulator_driver = {
0151     .driver = {
0152         .name = "tps65912-regulator",
0153     },
0154     .probe = tps65912_regulator_probe,
0155     .id_table = tps65912_regulator_id_table,
0156 };
0157 module_platform_driver(tps65912_regulator_driver);
0158
0159 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
0160 MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
0161 MODULE_LICENSE("GPL v2");