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4236b12c87
'max77503_dev' is unused since the original
commit a0c543bdf4 ("regulator: max77503: Add ADI MAX77503 support").
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://msgid.link/r/20240528174659.53022-1-linux@treblig.org
Signed-off-by: Mark Brown <broonie@kernel.org>
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2023 Analog Devices, Inc.
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* ADI regulator driver for MAX77503.
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*/
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#include <linux/i2c.h>
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#include <linux/module.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/machine.h>
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#include <linux/regulator/of_regulator.h>
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#include <linux/util_macros.h>
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#define MAX77503_REG_CFG 0x00
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#define MAX77503_REG_VOUT 0x01
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#define MAX77503_BIT_EN BIT(0)
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#define MAX77503_BIT_CURR_LIM BIT(3)
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#define MAX77503_BIT_ADEN BIT(6)
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#define MAX77503_BITS_SOFT_START GENMASK(5, 4)
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#define MAX77503_BITS_MX_VOUT GENMASK(7, 0)
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#define MAX77503_AD_ENABLED 0x1
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#define MAX77503_AD_DISABLED 0x0
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static const struct regmap_config max77503_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = 0x2,
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};
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static const struct regulator_ops max77503_buck_ops = {
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.list_voltage = regulator_list_voltage_linear_range,
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.map_voltage = regulator_map_voltage_ascend,
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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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.get_current_limit = regulator_get_current_limit_regmap,
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.set_current_limit = regulator_set_current_limit_regmap,
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.set_active_discharge = regulator_set_active_discharge_regmap,
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.set_soft_start = regulator_set_soft_start_regmap,
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};
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static const struct linear_range max77503_buck_ranges[] = {
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REGULATOR_LINEAR_RANGE(800000, 0x00, 0x54, 50000)
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};
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static const unsigned int max77503_current_limit_table[] = {
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500000, 2000000
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};
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static const struct regulator_desc max77503_regulators_desc = {
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.name = "max77503",
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.enable_reg = MAX77503_REG_CFG,
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.enable_mask = MAX77503_BIT_EN,
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.ops = &max77503_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.linear_ranges = max77503_buck_ranges,
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.n_linear_ranges = ARRAY_SIZE(max77503_buck_ranges),
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.vsel_reg = MAX77503_REG_VOUT,
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.vsel_mask = MAX77503_BITS_MX_VOUT,
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.soft_start_reg = MAX77503_REG_CFG,
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.soft_start_mask = MAX77503_BITS_SOFT_START,
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.active_discharge_reg = MAX77503_REG_CFG,
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.active_discharge_mask = MAX77503_BIT_ADEN,
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.active_discharge_off = MAX77503_AD_DISABLED,
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.active_discharge_on = MAX77503_AD_ENABLED,
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.csel_reg = MAX77503_REG_CFG,
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.csel_mask = MAX77503_BIT_CURR_LIM,
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.curr_table = max77503_current_limit_table,
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.n_current_limits = ARRAY_SIZE(max77503_current_limit_table),
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.owner = THIS_MODULE,
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};
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static int max77503_regulator_probe(struct i2c_client *client)
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{
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struct device *dev = &client->dev;
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struct regulator_config config = {};
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struct regulator_dev *rdev;
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config.dev = dev;
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config.of_node = dev->of_node;
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config.regmap = devm_regmap_init_i2c(client, &max77503_regmap_config);
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if (IS_ERR(config.regmap)) {
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dev_err(dev, "Failed to init regmap");
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return PTR_ERR(config.regmap);
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}
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rdev = devm_regulator_register(dev, &max77503_regulators_desc, &config);
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if (IS_ERR(rdev)) {
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dev_err(dev, "Failed to register regulator MAX77503");
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return PTR_ERR(rdev);
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}
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return 0;
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}
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static const struct of_device_id of_max77503_match_tbl[] = {
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{ .compatible = "adi,max77503", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, of_max77503_match_tbl);
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static const struct i2c_device_id max77503_regulator_id[] = {
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{"max77503"},
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, max77503_regulator_id);
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static struct i2c_driver max77503_regulator_driver = {
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.driver = {
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.name = "max77503",
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.of_match_table = of_max77503_match_tbl
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},
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.probe = max77503_regulator_probe,
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.id_table = max77503_regulator_id,
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};
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module_i2c_driver(max77503_regulator_driver);
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MODULE_AUTHOR("Gokhan Celik <Gokhan.Celik@analog.com>");
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MODULE_DESCRIPTION("MAX77503 regulator driver");
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MODULE_LICENSE("GPL");
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