/* * Regulator driver for TI TPS65912x PMICs * * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ * Andrew F. Davis <afd@ti.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed "as is" WITHOUT ANY WARRANTY of any * kind, whether expressed or implied; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License version 2 for more details. * * Based on the TPS65218 driver and the previous TPS65912 driver by * Margarita Olaya Cabrera <magi@slimlogic.co.uk> */ #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/mfd/tps65912.h> enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 }; #define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \ [_id] = { \ .name = _name, \ .of_match = _of_match, \ .regulators_node = "regulators", \ .id = _id, \ .ops = &_ops, \ .n_voltages = 64, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .vsel_reg = _vr, \ .vsel_mask = 0x3f, \ .enable_reg = _er, \ .enable_mask = BIT(7), \ .volt_table = NULL, \ .linear_ranges = _lr, \ .n_linear_ranges = ARRAY_SIZE(_lr), \ } static const struct regulator_linear_range tps65912_dcdc_ranges[] = { REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000), }; static const struct regulator_linear_range tps65912_ldo_ranges[] = { REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000), REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000), REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000), }; /* Operations permitted on DCDCx */ static struct regulator_ops tps65912_ops_dcdc = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear_range, }; /* Operations permitted on LDOx */ static struct regulator_ops tps65912_ops_ldo = { .is_enabled = regulator_is_enabled_regmap, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear_range, .map_voltage = regulator_map_voltage_linear_range, }; static const struct regulator_desc regulators[] = { TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc, TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL, tps65912_dcdc_ranges), TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc, TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL, tps65912_dcdc_ranges), TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc, TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL, tps65912_dcdc_ranges), TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc, TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL, tps65912_dcdc_ranges), TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo, TPS65912_LDO1_OP, TPS65912_LDO1_AVS, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo, TPS65912_LDO2_OP, TPS65912_LDO2_AVS, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo, TPS65912_LDO3_OP, TPS65912_LDO3_AVS, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo, TPS65912_LDO4_OP, TPS65912_LDO4_AVS, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo, TPS65912_LDO5, TPS65912_LDO5, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo, TPS65912_LDO6, TPS65912_LDO6, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo, TPS65912_LDO7, TPS65912_LDO7, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo, TPS65912_LDO8, TPS65912_LDO8, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo, TPS65912_LDO9, TPS65912_LDO9, tps65912_ldo_ranges), TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo, TPS65912_LDO10, TPS65912_LDO10, tps65912_ldo_ranges), }; static int tps65912_regulator_probe(struct platform_device *pdev) { struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = { }; struct regulator_dev *rdev; int i; platform_set_drvdata(pdev, tps); config.dev = &pdev->dev; config.driver_data = tps; config.dev->of_node = tps->dev->of_node; config.regmap = tps->regmap; for (i = 0; i < ARRAY_SIZE(regulators); i++) { rdev = devm_regulator_register(&pdev->dev, ®ulators[i], &config); if (IS_ERR(rdev)) { dev_err(tps->dev, "failed to register %s regulator\n", pdev->name); return PTR_ERR(rdev); } } return 0; } static const struct platform_device_id tps65912_regulator_id_table[] = { { "tps65912-regulator", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table); static struct platform_driver tps65912_regulator_driver = { .driver = { .name = "tps65912-regulator", }, .probe = tps65912_regulator_probe, .id_table = tps65912_regulator_id_table, }; module_platform_driver(tps65912_regulator_driver); MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>"); MODULE_DESCRIPTION("TPS65912 voltage regulator driver"); MODULE_LICENSE("GPL v2");