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115 lines
3.2 KiB
115 lines
3.2 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Driver for TPS61050/61052 boost converters, typically used for white LEDs |
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* or audio amplifiers. |
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* |
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* Copyright (C) 2011 ST-Ericsson SA |
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* Written on behalf of Linaro for ST-Ericsson |
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* |
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* Author: Linus Walleij <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/err.h> |
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#include <linux/regmap.h> |
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#include <linux/platform_device.h> |
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#include <linux/regulator/driver.h> |
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#include <linux/mfd/core.h> |
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#include <linux/mfd/tps6105x.h> |
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static const unsigned int tps6105x_voltages[] = { |
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4500000, |
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5000000, |
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5250000, |
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5000000, /* There is an additional 5V */ |
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}; |
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static const struct regulator_ops tps6105x_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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.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_table, |
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}; |
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static const struct regulator_desc tps6105x_regulator_desc = { |
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.name = "tps6105x-boost", |
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.of_match = of_match_ptr("regulator"), |
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.ops = &tps6105x_regulator_ops, |
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.type = REGULATOR_VOLTAGE, |
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.id = 0, |
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.owner = THIS_MODULE, |
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.n_voltages = ARRAY_SIZE(tps6105x_voltages), |
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.volt_table = tps6105x_voltages, |
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.vsel_reg = TPS6105X_REG_0, |
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.vsel_mask = TPS6105X_REG0_VOLTAGE_MASK, |
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.enable_reg = TPS6105X_REG_0, |
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.enable_mask = TPS6105X_REG0_MODE_MASK, |
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.enable_val = TPS6105X_REG0_MODE_VOLTAGE << |
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TPS6105X_REG0_MODE_SHIFT, |
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}; |
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/* |
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* Registers the chip as a voltage regulator |
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*/ |
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static int tps6105x_regulator_probe(struct platform_device *pdev) |
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{ |
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struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev); |
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struct tps6105x_platform_data *pdata = tps6105x->pdata; |
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struct regulator_config config = { }; |
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int ret; |
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/* This instance is not set for regulator mode so bail out */ |
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if (pdata->mode != TPS6105X_MODE_VOLTAGE) { |
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dev_info(&pdev->dev, |
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"chip not in voltage mode mode, exit probe\n"); |
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return 0; |
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} |
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config.dev = &tps6105x->client->dev; |
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config.init_data = pdata->regulator_data; |
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config.driver_data = tps6105x; |
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config.of_node = pdev->dev.parent->of_node; |
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config.regmap = tps6105x->regmap; |
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/* Register regulator with framework */ |
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tps6105x->regulator = devm_regulator_register(&pdev->dev, |
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&tps6105x_regulator_desc, |
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&config); |
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if (IS_ERR(tps6105x->regulator)) { |
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ret = PTR_ERR(tps6105x->regulator); |
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dev_err(&tps6105x->client->dev, |
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"failed to register regulator\n"); |
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return ret; |
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} |
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platform_set_drvdata(pdev, tps6105x); |
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return 0; |
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} |
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static struct platform_driver tps6105x_regulator_driver = { |
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.driver = { |
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.name = "tps6105x-regulator", |
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}, |
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.probe = tps6105x_regulator_probe, |
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}; |
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static __init int tps6105x_regulator_init(void) |
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{ |
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return platform_driver_register(&tps6105x_regulator_driver); |
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} |
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subsys_initcall(tps6105x_regulator_init); |
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static __exit void tps6105x_regulator_exit(void) |
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{ |
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platform_driver_unregister(&tps6105x_regulator_driver); |
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} |
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module_exit(tps6105x_regulator_exit); |
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MODULE_AUTHOR("Linus Walleij <[email protected]>"); |
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MODULE_DESCRIPTION("TPS6105x regulator driver"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:tps6105x-regulator");
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