LXR linux/drivers/hwmon/adt7410.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * ADT7410/ADT7420 digital temperature sensor driver
   4 *
   5 * Copyright 2012-2013 Analog Devices Inc.
   6 *   Author: Lars-Peter Clausen <lars@metafoo.de>
   7 */
   8
   9#include <linux/module.h>
  10#include <linux/init.h>
  11#include <linux/i2c.h>
  12
  13#include "adt7x10.h"
  14
  15static int adt7410_i2c_read_word(struct device *dev, u8 reg)
  16{
  17        return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg);
  18}
  19
  20static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data)
  21{
  22        return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data);
  23}
  24
  25static int adt7410_i2c_read_byte(struct device *dev, u8 reg)
  26{
  27        return i2c_smbus_read_byte_data(to_i2c_client(dev), reg);
  28}
  29
  30static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data)
  31{
  32        return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data);
  33}
  34
  35static const struct adt7x10_ops adt7410_i2c_ops = {
  36        .read_word = adt7410_i2c_read_word,
  37        .write_word = adt7410_i2c_write_word,
  38        .read_byte = adt7410_i2c_read_byte,
  39        .write_byte = adt7410_i2c_write_byte,
  40};
  41
  42static int adt7410_i2c_probe(struct i2c_client *client,
  43        const struct i2c_device_id *id)
  44{
  45        if (!i2c_check_functionality(client->adapter,
  46                        I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
  47                return -ENODEV;
  48
  49        return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);
  50}
  51
  52static int adt7410_i2c_remove(struct i2c_client *client)
  53{
  54        return adt7x10_remove(&client->dev, client->irq);
  55}
  56
  57static const struct i2c_device_id adt7410_ids[] = {
  58        { "adt7410", 0 },
  59        { "adt7420", 0 },
  60        {}
  61};
  62MODULE_DEVICE_TABLE(i2c, adt7410_ids);
  63
  64static struct i2c_driver adt7410_driver = {
  65        .class          = I2C_CLASS_HWMON,
  66        .driver = {
  67                .name   = "adt7410",
  68                .pm     = ADT7X10_DEV_PM_OPS,
  69        },
  70        .probe          = adt7410_i2c_probe,
  71        .remove         = adt7410_i2c_remove,
  72        .id_table       = adt7410_ids,
  73        .address_list   = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
  74};
  75module_i2c_driver(adt7410_driver);
  76
  77MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
  78MODULE_DESCRIPTION("ADT7410/AD7420 driver");
  79MODULE_LICENSE("GPL");
  80