Quelle  atc260x-i2c.c   Sprache: C

// 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, ®map_cfg);
 if (ret)
  return ret;

 i2c_set_clientdata(client, atc260x);

 atc260x->regmap = devm_regmap_init_i2c(client, ®map_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 ");
MODULE_AUTHOR("Cristian Ciocaltea ");
MODULE_LICENSE("GPL");