linux-imx

/*

 * ADT7410/ADT7420 digital temperature sensor driver

 *

 * Copyright 2012-2013 Analog Devices Inc.

 *   Author: Lars-Peter Clausen <lars@metafoo.de>

 *

 * Licensed under the GPL-2 or later.

 */

​

#include <linux/module.h>

#include <linux/init.h>

#include <linux/i2c.h>

​

#include "adt7x10.h"

​

static int adt7410_i2c_read_word(struct device *dev, u8 reg)

{

    return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg);

}

​

static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data)

{

    return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data);

}

​

static int adt7410_i2c_read_byte(struct device *dev, u8 reg)

{

    return i2c_smbus_read_byte_data(to_i2c_client(dev), reg);

}

​

static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data)

{

    return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data);

}

​

static const struct adt7x10_ops adt7410_i2c_ops = {

    .read_word = adt7410_i2c_read_word,

    .write_word = adt7410_i2c_write_word,

    .read_byte = adt7410_i2c_read_byte,

    .write_byte = adt7410_i2c_write_byte,

};

​

static int adt7410_i2c_probe(struct i2c_client *client,

    const struct i2c_device_id *id)

{

    if (!i2c_check_functionality(client->adapter,

            I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))

        return -ENODEV;

​

    return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);

}

​

static int adt7410_i2c_remove(struct i2c_client *client)

{

    return adt7x10_remove(&client->dev, client->irq);

}

​

static const struct i2c_device_id adt7410_ids[] = {

    { "adt7410", 0 },

    { "adt7420", 0 },

    {}

};

MODULE_DEVICE_TABLE(i2c, adt7410_ids);