mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-16 02:46:49 +07:00
dd4cae9ce6
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/*
|
|
* Regulator driver for the Richtek RT5033
|
|
*
|
|
* Copyright (C) 2014 Samsung Electronics, Co., Ltd.
|
|
* Author: Beomho Seo <beomho.seo@samsung.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#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");
|