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 { 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 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