1 /*
2 * ADT7410/ADT7420 digital temperature sensor driver
3 *
4 * Copyright 2012-2013 Analog Devices Inc.
5 * Author: Lars-Peter Clausen <lars@metafoo.de>
6 *
7 * Licensed under the GPL-2 or later.
8 */
9
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/i2c.h>
13
14 #include "adt7x10.h"
15
adt7410_i2c_read_word(struct device * dev,u8 reg)16 static int adt7410_i2c_read_word(struct device *dev, u8 reg)
17 {
18 return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg);
19 }
20
adt7410_i2c_write_word(struct device * dev,u8 reg,u16 data)21 static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data)
22 {
23 return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data);
24 }
25
adt7410_i2c_read_byte(struct device * dev,u8 reg)26 static int adt7410_i2c_read_byte(struct device *dev, u8 reg)
27 {
28 return i2c_smbus_read_byte_data(to_i2c_client(dev), reg);
29 }
30
adt7410_i2c_write_byte(struct device * dev,u8 reg,u8 data)31 static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data)
32 {
33 return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data);
34 }
35
36 static const struct adt7x10_ops adt7410_i2c_ops = {
37 .read_word = adt7410_i2c_read_word,
38 .write_word = adt7410_i2c_write_word,
39 .read_byte = adt7410_i2c_read_byte,
40 .write_byte = adt7410_i2c_write_byte,
41 };
42
adt7410_i2c_probe(struct i2c_client * client,const struct i2c_device_id * id)43 static int adt7410_i2c_probe(struct i2c_client *client,
44 const struct i2c_device_id *id)
45 {
46 if (!i2c_check_functionality(client->adapter,
47 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
48 return -ENODEV;
49
50 return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);
51 }
52
adt7410_i2c_remove(struct i2c_client * client)53 static int adt7410_i2c_remove(struct i2c_client *client)
54 {
55 return adt7x10_remove(&client->dev, client->irq);
56 }
57
58 static const struct i2c_device_id adt7410_ids[] = {
59 { "adt7410", 0 },
60 { "adt7420", 0 },
61 {}
62 };
63 MODULE_DEVICE_TABLE(i2c, adt7410_ids);
64
65 static struct i2c_driver adt7410_driver = {
66 .class = I2C_CLASS_HWMON,
67 .driver = {
68 .name = "adt7410",
69 .pm = ADT7X10_DEV_PM_OPS,
70 },
71 .probe = adt7410_i2c_probe,
72 .remove = adt7410_i2c_remove,
73 .id_table = adt7410_ids,
74 .address_list = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
75 };
76 module_i2c_driver(adt7410_driver);
77
78 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
79 MODULE_DESCRIPTION("ADT7410/AD7420 driver");
80 MODULE_LICENSE("GPL");
81