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// SPDX-License-Identifier: GPL-2.0+
/*
* MP2629 parent driver for ADC and battery charger
*
* Copyright 2020 Monolithic Power Systems, Inc
*
* Author: Saravanan Sekar <sravanhome@gmail.com>
*/
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mp2629.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
static const struct mfd_cell mp2629_cell[] = {
{
.name = "mp2629_adc",
.of_compatible = "mps,mp2629_adc",
},
{
.name = "mp2629_charger",
.of_compatible = "mps,mp2629_charger",
}
};
static const struct regmap_config mp2629_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x17,
};
static int mp2629_probe(struct i2c_client *client)
{
struct mp2629_data *ddata;
int ret;
ddata = devm_kzalloc(&client->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
ddata->dev = &client->dev;
i2c_set_clientdata(client, ddata);
ddata->regmap = devm_regmap_init_i2c(client, &mp2629_regmap_config);
if (IS_ERR(ddata->regmap)) {
dev_err(ddata->dev, "Failed to allocate regmap\n");
return PTR_ERR(ddata->regmap);
}
ret = devm_mfd_add_devices(ddata->dev, PLATFORM_DEVID_AUTO, mp2629_cell,
ARRAY_SIZE(mp2629_cell), NULL, 0, NULL);
if (ret)
dev_err(ddata->dev, "Failed to register sub-devices %d\n", ret);
return ret;
}
static const struct of_device_id mp2629_of_match[] = {
{ .compatible = "mps,mp2629"},
{ }
};
MODULE_DEVICE_TABLE(of, mp2629_of_match);
static struct i2c_driver mp2629_driver = {
.driver = {
.name = "mp2629",
.of_match_table = mp2629_of_match,
},
.probe_new = mp2629_probe,
};
module_i2c_driver(mp2629_driver);
MODULE_AUTHOR("Saravanan Sekar <sravanhome@gmail.com>");
MODULE_DESCRIPTION("MP2629 Battery charger parent driver");
MODULE_LICENSE("GPL");
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