tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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");