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/*
* MFD driver for Active-semi ACT8945a PMIC
*
* Copyright (C) 2015 Atmel Corporation.
*
* Author: Wenyou Yang <wenyou.yang@atmel.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/i2c.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regmap.h>
static const struct mfd_cell act8945a_devs[] = {
{
.name = "act8945a-regulator",
},
{
.name = "act8945a-charger",
},
};
static const struct regmap_config act8945a_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
};
static int act8945a_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
int ret;
struct regmap *regmap;
regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
return ret;
}
i2c_set_clientdata(i2c, regmap);
ret = mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE, act8945a_devs,
ARRAY_SIZE(act8945a_devs), NULL, 0, NULL);
if (ret) {
dev_err(&i2c->dev, "Failed to add sub devices\n");
return ret;
}
return 0;
}
static int act8945a_i2c_remove(struct i2c_client *i2c)
{
mfd_remove_devices(&i2c->dev);
return 0;
}
static const struct i2c_device_id act8945a_i2c_id[] = {
{ "act8945a", 0 },
{}
};
MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id);
static const struct of_device_id act8945a_of_match[] = {
{ .compatible = "active-semi,act8945a", },
{},
};
MODULE_DEVICE_TABLE(of, act8945a_of_match);
static struct i2c_driver act8945a_i2c_driver = {
.driver = {
.name = "act8945a",
.of_match_table = of_match_ptr(act8945a_of_match),
},
.probe = act8945a_i2c_probe,
.remove = act8945a_i2c_remove,
.id_table = act8945a_i2c_id,
};
static int __init act8945a_i2c_init(void)
{
return i2c_add_driver(&act8945a_i2c_driver);
}
subsys_initcall(act8945a_i2c_init);
static void __exit act8945a_i2c_exit(void)
{
i2c_del_driver(&act8945a_i2c_driver);
}
module_exit(act8945a_i2c_exit);
MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver");
MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
MODULE_LICENSE("GPL");
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