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167 lines
4.7 KiB
167 lines
4.7 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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#include <linux/mfd/sm5703.h> |
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#include <linux/module.h> |
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#include <linux/mod_devicetable.h> |
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#include <linux/platform_device.h> |
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#include <linux/regmap.h> |
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#include <linux/regulator/driver.h> |
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#include <linux/regulator/of_regulator.h> |
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enum sm5703_regulators { |
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SM5703_BUCK, |
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SM5703_LDO1, |
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SM5703_LDO2, |
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SM5703_LDO3, |
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SM5703_USBLDO1, |
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SM5703_USBLDO2, |
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SM5703_VBUS, |
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SM5703_MAX_REGULATORS, |
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}; |
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static const int sm5703_ldo_voltagemap[] = { |
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1500000, 1800000, 2600000, 2800000, 3000000, 3300000, |
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}; |
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static const int sm5703_buck_voltagemap[] = { |
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1000000, 1000000, 1000000, 1000000, |
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1000000, 1000000, 1000000, 1000000, |
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1000000, 1000000, 1000000, 1100000, |
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1200000, 1300000, 1400000, 1500000, |
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1600000, 1700000, 1800000, 1900000, |
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2000000, 2100000, 2200000, 2300000, |
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2400000, 2500000, 2600000, 2700000, |
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2800000, 2900000, 3000000, 3000000, |
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}; |
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#define SM5703USBLDO(_name, _id) \ |
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[SM5703_USBLDO ## _id] = { \ |
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.name = _name, \ |
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.of_match = _name, \ |
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.regulators_node = "regulators", \ |
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.type = REGULATOR_VOLTAGE, \ |
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.id = SM5703_USBLDO ## _id, \ |
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.ops = &sm5703_regulator_ops_fixed, \ |
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.fixed_uV = SM5703_USBLDO_MICROVOLT, \ |
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.enable_reg = SM5703_REG_USBLDO12, \ |
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.enable_mask = SM5703_REG_EN_USBLDO ##_id, \ |
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.owner = THIS_MODULE, \ |
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} |
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#define SM5703VBUS(_name) \ |
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[SM5703_VBUS] = { \ |
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.name = _name, \ |
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.of_match = _name, \ |
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.regulators_node = "regulators", \ |
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.type = REGULATOR_VOLTAGE, \ |
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.id = SM5703_VBUS, \ |
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.ops = &sm5703_regulator_ops_fixed, \ |
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.fixed_uV = SM5703_VBUS_MICROVOLT, \ |
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.enable_reg = SM5703_REG_CNTL, \ |
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.enable_mask = SM5703_OPERATION_MODE_MASK, \ |
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.enable_val = SM5703_OPERATION_MODE_USB_OTG_MODE, \ |
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.disable_val = SM5703_OPERATION_MODE_CHARGING_ON, \ |
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.owner = THIS_MODULE, \ |
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} |
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#define SM5703BUCK(_name) \ |
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[SM5703_BUCK] = { \ |
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.name = _name, \ |
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.of_match = _name, \ |
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.regulators_node = "regulators", \ |
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.type = REGULATOR_VOLTAGE, \ |
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.id = SM5703_BUCK, \ |
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.ops = &sm5703_regulator_ops, \ |
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.n_voltages = ARRAY_SIZE(sm5703_buck_voltagemap), \ |
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.volt_table = sm5703_buck_voltagemap, \ |
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.vsel_reg = SM5703_REG_BUCK, \ |
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.vsel_mask = SM5703_BUCK_VOLT_MASK, \ |
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.enable_reg = SM5703_REG_BUCK, \ |
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.enable_mask = SM5703_REG_EN_BUCK, \ |
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.owner = THIS_MODULE, \ |
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} |
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#define SM5703LDO(_name, _id) \ |
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[SM5703_LDO ## _id] = { \ |
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.name = _name, \ |
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.of_match = _name, \ |
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.regulators_node = "regulators", \ |
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.type = REGULATOR_VOLTAGE, \ |
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.id = SM5703_LDO ## _id, \ |
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.ops = &sm5703_regulator_ops, \ |
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.n_voltages = ARRAY_SIZE(sm5703_ldo_voltagemap), \ |
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.volt_table = sm5703_ldo_voltagemap, \ |
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.vsel_reg = SM5703_REG_LDO ##_id, \ |
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.vsel_mask = SM5703_LDO_VOLT_MASK, \ |
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.enable_reg = SM5703_REG_LDO ##_id, \ |
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.enable_mask = SM5703_LDO_EN, \ |
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.owner = THIS_MODULE, \ |
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} |
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static const struct regulator_ops sm5703_regulator_ops = { |
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.enable = regulator_enable_regmap, |
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.disable = regulator_disable_regmap, |
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.is_enabled = regulator_is_enabled_regmap, |
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.list_voltage = regulator_list_voltage_table, |
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.get_voltage_sel = regulator_get_voltage_sel_regmap, |
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.set_voltage_sel = regulator_set_voltage_sel_regmap, |
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}; |
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static const struct regulator_ops sm5703_regulator_ops_fixed = { |
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.enable = regulator_enable_regmap, |
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.disable = regulator_disable_regmap, |
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.is_enabled = regulator_is_enabled_regmap, |
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}; |
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static struct regulator_desc sm5703_regulators_desc[SM5703_MAX_REGULATORS] = { |
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SM5703BUCK("buck"), |
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SM5703LDO("ldo1", 1), |
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SM5703LDO("ldo2", 2), |
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SM5703LDO("ldo3", 3), |
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SM5703USBLDO("usbldo1", 1), |
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SM5703USBLDO("usbldo2", 2), |
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SM5703VBUS("vbus"), |
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}; |
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static int sm5703_regulator_probe(struct platform_device *pdev) |
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{ |
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struct device *dev = &pdev->dev; |
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struct regulator_config config = { NULL, }; |
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struct regulator_dev *rdev; |
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struct sm5703_dev *sm5703 = dev_get_drvdata(pdev->dev.parent); |
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int i; |
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config.dev = dev->parent; |
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config.regmap = sm5703->regmap; |
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for (i = 0; i < SM5703_MAX_REGULATORS; i++) { |
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rdev = devm_regulator_register(dev, |
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&sm5703_regulators_desc[i], |
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&config); |
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if (IS_ERR(rdev)) |
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return dev_err_probe(dev, PTR_ERR(rdev), |
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"Failed to register a regulator\n"); |
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} |
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return 0; |
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} |
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static const struct platform_device_id sm5703_regulator_id[] = { |
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{ "sm5703-regulator", 0 }, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(platform, sm5703_regulator_id); |
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static struct platform_driver sm5703_regulator_driver = { |
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.driver = { |
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.name = "sm5703-regulator", |
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}, |
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.probe = sm5703_regulator_probe, |
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.id_table = sm5703_regulator_id, |
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}; |
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module_platform_driver(sm5703_regulator_driver); |
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MODULE_DESCRIPTION("Silicon Mitus SM5703 LDO/Buck/USB regulator driver"); |
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MODULE_AUTHOR("Markuss Broks <[email protected]>"); |
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MODULE_LICENSE("GPL");
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