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 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 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 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 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 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 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