drivers/iio/imu/bmi160/bmi160_i2c.c

   1 /*
   2  * BMI160 - Bosch IMU, I2C bits
   3  *
   4  * Copyright (c) 2016, Intel Corporation.
   5  *
   6  * This file is subject to the terms and conditions of version 2 of
   7  * the GNU General Public License.  See the file COPYING in the main
   8  * directory of this archive for more details.
   9  *
  10  * 7-bit I2C slave address is:
  11  *      - 0x68 if SDO is pulled to GND
  12  *      - 0x69 if SDO is pulled to VDDIO
  13  */
  14 #include <linux/acpi.h>
  15 #include <linux/i2c.h>
  16 #include <linux/module.h>
  17 #include <linux/of.h>
  18 #include <linux/regmap.h>
  19
  20 #include "bmi160.h"
  21
  22 static int bmi160_i2c_probe(struct i2c_client *client,
  23                             const struct i2c_device_id *id)
  24 {
  25         struct regmap *regmap;
  26         const char *name = NULL;
  27
  28         regmap = devm_regmap_init_i2c(client, &bmi160_regmap_config);
  29         if (IS_ERR(regmap)) {
  30                 dev_err(&client->dev, "Failed to register i2c regmap %d\n",
  31                         (int)PTR_ERR(regmap));
  32                 return PTR_ERR(regmap);
  33         }
  34
  35         if (id)
  36                 name = id->name;
  37
  38         return bmi160_core_probe(&client->dev, regmap, name, false);
  39 }
  40
  41 static int bmi160_i2c_remove(struct i2c_client *client)
  42 {
  43         bmi160_core_remove(&client->dev);
  44
  45         return 0;
  46 }
  47
  48 static const struct i2c_device_id bmi160_i2c_id[] = {
  49         {"bmi160", 0},
  50         {}
  51 };
  52 MODULE_DEVICE_TABLE(i2c, bmi160_i2c_id);
  53
  54 static const struct acpi_device_id bmi160_acpi_match[] = {
  55         {"BMI0160", 0},
  56         { },
  57 };
  58 MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match);
  59
  60 #ifdef CONFIG_OF
  61 static const struct of_device_id bmi160_of_match[] = {
  62         { .compatible = "bosch,bmi160" },
  63         { },
  64 };
  65 MODULE_DEVICE_TABLE(of, bmi160_of_match);
  66 #endif
  67
  68 static struct i2c_driver bmi160_i2c_driver = {
  69         .driver = {
  70                 .name                   = "bmi160_i2c",
  71                 .acpi_match_table       = ACPI_PTR(bmi160_acpi_match),
  72                 .of_match_table         = of_match_ptr(bmi160_of_match),
  73         },
  74         .probe          = bmi160_i2c_probe,
  75         .remove         = bmi160_i2c_remove,
  76         .id_table       = bmi160_i2c_id,
  77 };
  78 module_i2c_driver(bmi160_i2c_driver);
  79
  80 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
  81 MODULE_DESCRIPTION("BMI160 I2C driver");
  82 MODULE_LICENSE("GPL v2");