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linux-next/drivers/regulator/rt5033-regulator.c
Thomas Gleixner d925da5c7b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450
Based on 1 normalized pattern(s):

  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 bythe free software foundation

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 5 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190116.345887520@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:18 +02:00

127 lines
3.6 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for the Richtek RT5033
*
* Copyright (C) 2014 Samsung Electronics, Co., Ltd.
* Author: Beomho Seo <beomho.seo@samsung.com>
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/rt5033.h>
#include <linux/mfd/rt5033-private.h>
#include <linux/regulator/of_regulator.h>
static const struct regulator_ops rt5033_safe_ldo_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
};
static const struct regulator_ops rt5033_buck_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
};
static const struct regulator_desc rt5033_supported_regulators[] = {
[RT5033_BUCK] = {
.name = "BUCK",
.of_match = of_match_ptr("BUCK"),
.regulators_node = of_match_ptr("regulators"),
.id = RT5033_BUCK,
.ops = &rt5033_buck_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.n_voltages = RT5033_REGULATOR_BUCK_VOLTAGE_STEP_NUM,
.min_uV = RT5033_REGULATOR_BUCK_VOLTAGE_MIN,
.uV_step = RT5033_REGULATOR_BUCK_VOLTAGE_STEP,
.enable_reg = RT5033_REG_CTRL,
.enable_mask = RT5033_CTRL_EN_BUCK_MASK,
.vsel_reg = RT5033_REG_BUCK_CTRL,
.vsel_mask = RT5033_BUCK_CTRL_MASK,
},
[RT5033_LDO] = {
.name = "LDO",
.of_match = of_match_ptr("LDO"),
.regulators_node = of_match_ptr("regulators"),
.id = RT5033_LDO,
.ops = &rt5033_buck_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.n_voltages = RT5033_REGULATOR_LDO_VOLTAGE_STEP_NUM,
.min_uV = RT5033_REGULATOR_LDO_VOLTAGE_MIN,
.uV_step = RT5033_REGULATOR_LDO_VOLTAGE_STEP,
.enable_reg = RT5033_REG_CTRL,
.enable_mask = RT5033_CTRL_EN_LDO_MASK,
.vsel_reg = RT5033_REG_LDO_CTRL,
.vsel_mask = RT5033_LDO_CTRL_MASK,
},
[RT5033_SAFE_LDO] = {
.name = "SAFE_LDO",
.of_match = of_match_ptr("SAFE_LDO"),
.regulators_node = of_match_ptr("regulators"),
.id = RT5033_SAFE_LDO,
.ops = &rt5033_safe_ldo_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.n_voltages = 1,
.min_uV = RT5033_REGULATOR_SAFE_LDO_VOLTAGE,
.enable_reg = RT5033_REG_CTRL,
.enable_mask = RT5033_CTRL_EN_SAFE_LDO_MASK,
},
};
static int rt5033_regulator_probe(struct platform_device *pdev)
{
struct rt5033_dev *rt5033 = dev_get_drvdata(pdev->dev.parent);
int ret, i;
struct regulator_config config = {};
config.dev = rt5033->dev;
config.driver_data = rt5033;
for (i = 0; i < ARRAY_SIZE(rt5033_supported_regulators); i++) {
struct regulator_dev *regulator;
config.regmap = rt5033->regmap;
regulator = devm_regulator_register(&pdev->dev,
&rt5033_supported_regulators[i], &config);
if (IS_ERR(regulator)) {
ret = PTR_ERR(regulator);
dev_err(&pdev->dev,
"Regulator init failed %d: with error: %d\n",
i, ret);
return ret;
}
}
return 0;
}
static const struct platform_device_id rt5033_regulator_id[] = {
{ "rt5033-regulator", },
{ }
};
MODULE_DEVICE_TABLE(platform, rt5033_regulator_id);
static struct platform_driver rt5033_regulator_driver = {
.driver = {
.name = "rt5033-regulator",
},
.probe = rt5033_regulator_probe,
.id_table = rt5033_regulator_id,
};
module_platform_driver(rt5033_regulator_driver);
MODULE_DESCRIPTION("Richtek RT5033 Regulator driver");
MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>");
MODULE_LICENSE("GPL");