mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
fb9bf5c8f1
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// sky81452-regulator.c SKY81452 regulator driver
|
|
//
|
|
// Copyright 2014 Skyworks Solutions Inc.
|
|
// Author : Gyungoh Yoo <jack.yoo@skyworksinc.com>
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/init.h>
|
|
#include <linux/err.h>
|
|
#include <linux/of.h>
|
|
#include <linux/regulator/driver.h>
|
|
#include <linux/regulator/of_regulator.h>
|
|
|
|
/* registers */
|
|
#define SKY81452_REG1 0x01
|
|
#define SKY81452_REG3 0x03
|
|
|
|
/* bit mask */
|
|
#define SKY81452_LEN 0x40
|
|
#define SKY81452_LOUT 0x1F
|
|
|
|
static const struct regulator_ops sky81452_reg_ops = {
|
|
.list_voltage = regulator_list_voltage_linear_range,
|
|
.map_voltage = regulator_map_voltage_linear_range,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.enable = regulator_enable_regmap,
|
|
.disable = regulator_disable_regmap,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
};
|
|
|
|
static const struct regulator_linear_range sky81452_reg_ranges[] = {
|
|
REGULATOR_LINEAR_RANGE(4500000, 0, 14, 250000),
|
|
REGULATOR_LINEAR_RANGE(9000000, 15, 31, 1000000),
|
|
};
|
|
|
|
static const struct regulator_desc sky81452_reg = {
|
|
.name = "LOUT",
|
|
.of_match = of_match_ptr("lout"),
|
|
.regulators_node = of_match_ptr("regulator"),
|
|
.ops = &sky81452_reg_ops,
|
|
.type = REGULATOR_VOLTAGE,
|
|
.owner = THIS_MODULE,
|
|
.n_voltages = SKY81452_LOUT + 1,
|
|
.linear_ranges = sky81452_reg_ranges,
|
|
.n_linear_ranges = ARRAY_SIZE(sky81452_reg_ranges),
|
|
.vsel_reg = SKY81452_REG3,
|
|
.vsel_mask = SKY81452_LOUT,
|
|
.enable_reg = SKY81452_REG1,
|
|
.enable_mask = SKY81452_LEN,
|
|
};
|
|
|
|
static int sky81452_reg_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
const struct regulator_init_data *init_data = dev_get_platdata(dev);
|
|
struct regulator_config config = { };
|
|
struct regulator_dev *rdev;
|
|
|
|
config.dev = dev->parent;
|
|
config.init_data = init_data;
|
|
config.of_node = dev->of_node;
|
|
config.regmap = dev_get_drvdata(dev->parent);
|
|
|
|
rdev = devm_regulator_register(dev, &sky81452_reg, &config);
|
|
if (IS_ERR(rdev)) {
|
|
dev_err(dev, "failed to register. err=%ld\n", PTR_ERR(rdev));
|
|
return PTR_ERR(rdev);
|
|
}
|
|
|
|
platform_set_drvdata(pdev, rdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver sky81452_reg_driver = {
|
|
.driver = {
|
|
.name = "sky81452-regulator",
|
|
},
|
|
.probe = sky81452_reg_probe,
|
|
};
|
|
|
|
module_platform_driver(sky81452_reg_driver);
|
|
|
|
MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver");
|
|
MODULE_AUTHOR("Gyungoh Yoo <jack.yoo@skyworksinc.com>");
|
|
MODULE_LICENSE("GPL v2");
|