drivers/iio/chemical/ens160_i2c.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * ScioSense ENS160 multi-gas sensor I2C driver
   4  *
   5  * Copyright (c) 2024 Gustavo Silva <gustavograzs@gmail.com>
   6  *
   7  * 7-Bit I2C slave address is:
   8  *      - 0x52 if ADDR pin LOW
   9  *      - 0x53 if ADDR pin HIGH
  10  */
  11
  12 #include <linux/i2c.h>
  13 #include <linux/module.h>
  14 #include <linux/regmap.h>
  15
  16 #include "ens160.h"
  17
  18 static const struct regmap_config ens160_regmap_i2c_conf = {
  19         .reg_bits = 8,
  20         .val_bits = 8,
  21 };
  22
  23 static int ens160_i2c_probe(struct i2c_client *client)
  24 {
  25         struct regmap *regmap;
  26
  27         regmap = devm_regmap_init_i2c(client, &ens160_regmap_i2c_conf);
  28         if (IS_ERR(regmap))
  29                 return dev_err_probe(&client->dev, PTR_ERR(regmap),
  30                                      "Failed to register i2c regmap\n");
  31
  32         return devm_ens160_core_probe(&client->dev, regmap, client->irq,
  33                                       "ens160");
  34 }
  35
  36 static const struct i2c_device_id ens160_i2c_id[] = {
  37         { "ens160" },
  38         { }
  39 };
  40 MODULE_DEVICE_TABLE(i2c, ens160_i2c_id);
  41
  42 static const struct of_device_id ens160_of_i2c_match[] = {
  43         { .compatible = "sciosense,ens160" },
  44         { }
  45 };
  46 MODULE_DEVICE_TABLE(of, ens160_of_i2c_match);
  47
  48 static struct i2c_driver ens160_i2c_driver = {
  49         .driver = {
  50                 .name           = "ens160",
  51                 .of_match_table = ens160_of_i2c_match,
  52                 .pm             = pm_sleep_ptr(&ens160_pm_ops),
  53         },
  54         .probe = ens160_i2c_probe,
  55         .id_table = ens160_i2c_id,
  56 };
  57 module_i2c_driver(ens160_i2c_driver);
  58
  59 MODULE_AUTHOR("Gustavo Silva <gustavograzs@gmail.com>");
  60 MODULE_DESCRIPTION("ScioSense ENS160 I2C driver");
  61 MODULE_LICENSE("GPL v2");
  62 MODULE_IMPORT_NS(IIO_ENS160);