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183 lines
4.2 KiB
183 lines
4.2 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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#include <linux/module.h> |
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#include <linux/i2c.h> |
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#include <linux/of.h> |
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#include <linux/regmap.h> |
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#include <linux/regulator/driver.h> |
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static const struct regulator_ops max8893_ops = { |
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.is_enabled = regulator_is_enabled_regmap, |
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.enable = regulator_enable_regmap, |
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.disable = regulator_disable_regmap, |
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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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.list_voltage = regulator_list_voltage_linear, |
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.map_voltage = regulator_map_voltage_linear, |
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}; |
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static const struct regulator_desc max8893_regulators[] = { |
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{ |
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.name = "BUCK", |
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.supply_name = "in-buck", |
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.of_match = of_match_ptr("buck"), |
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.regulators_node = of_match_ptr("regulators"), |
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.n_voltages = 0x11, |
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.id = 6, |
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.ops = &max8893_ops, |
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.type = REGULATOR_VOLTAGE, |
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.owner = THIS_MODULE, |
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.min_uV = 800000, |
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.uV_step = 100000, |
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.vsel_reg = 0x4, |
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.vsel_mask = 0x1f, |
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.enable_reg = 0x0, |
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.enable_mask = BIT(7), |
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}, |
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{ |
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.name = "LDO1", |
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.supply_name = "in-ldo1", |
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.of_match = of_match_ptr("ldo1"), |
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.regulators_node = of_match_ptr("regulators"), |
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.n_voltages = 0x12, |
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.id = 1, |
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.ops = &max8893_ops, |
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.type = REGULATOR_VOLTAGE, |
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.owner = THIS_MODULE, |
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.min_uV = 1600000, |
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.uV_step = 100000, |
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.vsel_reg = 0x5, |
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.vsel_mask = 0x1f, |
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.enable_reg = 0x0, |
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.enable_mask = BIT(5), |
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}, |
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{ |
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.name = "LDO2", |
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.supply_name = "in-ldo2", |
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.of_match = of_match_ptr("ldo2"), |
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.regulators_node = of_match_ptr("regulators"), |
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.n_voltages = 0x16, |
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.id = 2, |
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.ops = &max8893_ops, |
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.type = REGULATOR_VOLTAGE, |
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.owner = THIS_MODULE, |
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.min_uV = 1200000, |
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.uV_step = 100000, |
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.vsel_reg = 0x6, |
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.vsel_mask = 0x1f, |
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.enable_reg = 0x0, |
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.enable_mask = BIT(4), |
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}, |
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{ |
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.name = "LDO3", |
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.supply_name = "in-ldo3", |
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.of_match = of_match_ptr("ldo3"), |
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.regulators_node = of_match_ptr("regulators"), |
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.n_voltages = 0x12, |
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.id = 3, |
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.ops = &max8893_ops, |
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.type = REGULATOR_VOLTAGE, |
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.owner = THIS_MODULE, |
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.min_uV = 1600000, |
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.uV_step = 100000, |
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.vsel_reg = 0x7, |
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.vsel_mask = 0x1f, |
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.enable_reg = 0x0, |
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.enable_mask = BIT(3), |
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}, |
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{ |
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.name = "LDO4", |
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.supply_name = "in-ldo4", |
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.of_match = of_match_ptr("ldo4"), |
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.regulators_node = of_match_ptr("regulators"), |
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.n_voltages = 0x1a, |
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.id = 4, |
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.ops = &max8893_ops, |
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.type = REGULATOR_VOLTAGE, |
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.owner = THIS_MODULE, |
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.min_uV = 800000, |
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.uV_step = 100000, |
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.vsel_reg = 0x8, |
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.vsel_mask = 0x1f, |
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.enable_reg = 0x0, |
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.enable_mask = BIT(2), |
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}, |
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{ |
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.name = "LDO5", |
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.supply_name = "in-ldo5", |
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.of_match = of_match_ptr("ldo5"), |
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.regulators_node = of_match_ptr("regulators"), |
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.n_voltages = 0x1a, |
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.id = 5, |
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.ops = &max8893_ops, |
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.type = REGULATOR_VOLTAGE, |
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.owner = THIS_MODULE, |
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.min_uV = 800000, |
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.uV_step = 100000, |
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.vsel_reg = 0x9, |
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.vsel_mask = 0x1f, |
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.enable_reg = 0x0, |
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.enable_mask = BIT(1), |
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} |
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}; |
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static const struct regmap_config max8893_regmap = { |
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.reg_bits = 8, |
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.val_bits = 8, |
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}; |
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static int max8893_probe_new(struct i2c_client *i2c) |
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{ |
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int id, ret; |
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struct regulator_config config = {.dev = &i2c->dev}; |
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struct regmap *regmap = devm_regmap_init_i2c(i2c, &max8893_regmap); |
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if (IS_ERR(regmap)) { |
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ret = PTR_ERR(regmap); |
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dev_err(&i2c->dev, "regmap init failed: %d\n", ret); |
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return ret; |
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} |
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for (id = 0; id < ARRAY_SIZE(max8893_regulators); id++) { |
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struct regulator_dev *rdev; |
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rdev = devm_regulator_register(&i2c->dev, |
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&max8893_regulators[id], |
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&config); |
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if (IS_ERR(rdev)) { |
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ret = PTR_ERR(rdev); |
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dev_err(&i2c->dev, "failed to register %s: %d\n", |
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max8893_regulators[id].name, ret); |
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return ret; |
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} |
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} |
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return 0; |
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} |
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#ifdef CONFIG_OF |
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static const struct of_device_id max8893_dt_match[] = { |
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{ .compatible = "maxim,max8893" }, |
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{ /* sentinel */ }, |
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}; |
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MODULE_DEVICE_TABLE(of, max8893_dt_match); |
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#endif |
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static const struct i2c_device_id max8893_ids[] = { |
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{ "max8893", 0 }, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(i2c, max8893_ids); |
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static struct i2c_driver max8893_driver = { |
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.probe_new = max8893_probe_new, |
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.driver = { |
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.name = "max8893", |
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.of_match_table = of_match_ptr(max8893_dt_match), |
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}, |
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.id_table = max8893_ids, |
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}; |
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module_i2c_driver(max8893_driver); |
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MODULE_DESCRIPTION("Maxim MAX8893 PMIC driver"); |
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MODULE_AUTHOR("Sergey Larin <[email protected]>"); |
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MODULE_LICENSE("GPL");
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