linux-stable/drivers/mfd/atc260x-i2c.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* I2C bus interface for ATC260x PMICs
*
* Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
* Copyright (C) 2020 Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
*/
#include <linux/i2c.h>
#include <linux/mfd/atc260x/core.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
static int atc260x_i2c_probe(struct i2c_client *client)
{
struct atc260x *atc260x;
struct regmap_config regmap_cfg;
int ret;
atc260x = devm_kzalloc(&client->dev, sizeof(*atc260x), GFP_KERNEL);
if (!atc260x)
return -ENOMEM;
atc260x->dev = &client->dev;
atc260x->irq = client->irq;
ret = atc260x_match_device(atc260x, &regmap_cfg);
if (ret)
return ret;
i2c_set_clientdata(client, atc260x);
atc260x->regmap = devm_regmap_init_i2c(client, &regmap_cfg);
if (IS_ERR(atc260x->regmap)) {
ret = PTR_ERR(atc260x->regmap);
dev_err(&client->dev, "failed to init regmap: %d\n", ret);
return ret;
}
return atc260x_device_probe(atc260x);
}
static const struct of_device_id atc260x_i2c_of_match[] = {
{ .compatible = "actions,atc2603c", .data = (void *)ATC2603C },
{ .compatible = "actions,atc2609a", .data = (void *)ATC2609A },
{ }
};
MODULE_DEVICE_TABLE(of, atc260x_i2c_of_match);
static struct i2c_driver atc260x_i2c_driver = {
.driver = {
.name = "atc260x",
.of_match_table = atc260x_i2c_of_match,
},
.probe = atc260x_i2c_probe,
};
module_i2c_driver(atc260x_i2c_driver);
MODULE_DESCRIPTION("ATC260x PMICs I2C bus interface");
MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@gmail.com>");
MODULE_LICENSE("GPL");