92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* MFD driver for Active-semi ACT8945a PMIC
|
|
*
|
|
* Copyright (C) 2015 Atmel Corporation.
|
|
*
|
|
* Author: Wenyou Yang <wenyou.yang@atmel.com>
|
|
*/
|
|
|
|
#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",
|
|
.of_compatible = "active-semi,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)
|
|
{
|
|
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 = devm_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 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_new = act8945a_i2c_probe,
|
|
.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");
|