drivers/hwmon/adt7410.c

   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");