| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 42 | static 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 | |
| 52 | static int adt7410_i2c_remove(struct i2c_client *client) |
| 53 | { |
| 54 | return adt7x10_remove(&client->dev, client->irq); |
| 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 = 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"); |