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
adt7410_i2c_read_word(struct device * dev,u8 reg)15 static 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
adt7410_i2c_write_word(struct device * dev,u8 reg,u16 data)20 static 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
adt7410_i2c_read_byte(struct device * dev,u8 reg)25 static 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
adt7410_i2c_write_byte(struct device * dev,u8 reg,u8 data)30 static 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
35 static 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
adt7410_i2c_probe(struct i2c_client * client)42 static int adt7410_i2c_probe(struct i2c_client *client)
43 {
44 if (!i2c_check_functionality(client->adapter,
45 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
46 return -ENODEV;
47
48 return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);
49 }
50
adt7410_i2c_remove(struct i2c_client * client)51 static int adt7410_i2c_remove(struct i2c_client *client)
52 {
53 adt7x10_remove(&client->dev, client->irq);
54 return 0;
55 }
56
57 static const struct i2c_device_id adt7410_ids[] = {
58 { "adt7410", 0 },
59 { "adt7420", 0 },
60 {}
61 };
62 MODULE_DEVICE_TABLE(i2c, adt7410_ids);
63
64 static struct i2c_driver adt7410_driver = {
65 .class = I2C_CLASS_HWMON,
66 .driver = {
67 .name = "adt7410",
68 .pm = ADT7X10_DEV_PM_OPS,
69 },
70 .probe_new = adt7410_i2c_probe,
71 .remove = adt7410_i2c_remove,
72 .id_table = adt7410_ids,
73 .address_list = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
74 };
75 module_i2c_driver(adt7410_driver);
76
77 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
78 MODULE_DESCRIPTION("ADT7410/AD7420 driver");
79 MODULE_LICENSE("GPL");
80