drivers/iio/imu/fxos8700_i2c.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * FXOS8700 - NXP IMU, I2C bits
   4  *
   5  * 7-bit I2C slave address determined by SA1 and SA0 logic level
   6  * inputs represented in the following table:
   7  *      SA1  |  SA0  |  Slave Address
   8  *      0    |  0    |  0x1E
   9  *      0    |  1    |  0x1D
  10  *      1    |  0    |  0x1C
  11  *      1    |  1    |  0x1F
  12  */
  13 #include <linux/acpi.h>
  14 #include <linux/i2c.h>
  15 #include <linux/module.h>
  16 #include <linux/mod_devicetable.h>
  17 #include <linux/regmap.h>
  18
  19 #include "fxos8700.h"
  20
  21 static int fxos8700_i2c_probe(struct i2c_client *client,
  22                               const struct i2c_device_id *id)
  23 {
  24         struct regmap *regmap;
  25         const char *name = NULL;
  26
  27         regmap = devm_regmap_init_i2c(client, &fxos8700_regmap_config);
  28         if (IS_ERR(regmap)) {
  29                 dev_err(&client->dev, "Failed to register i2c regmap %d\n",
  30                         (int)PTR_ERR(regmap));
  31                 return PTR_ERR(regmap);
  32         }
  33
  34         if (id)
  35                 name = id->name;
  36
  37         return fxos8700_core_probe(&client->dev, regmap, name, false);
  38 }
  39
  40 static const struct i2c_device_id fxos8700_i2c_id[] = {
  41         {"fxos8700", 0},
  42         { }
  43 };
  44 MODULE_DEVICE_TABLE(i2c, fxos8700_i2c_id);
  45
  46 static const struct acpi_device_id fxos8700_acpi_match[] = {
  47         {"FXOS8700", 0},
  48         { }
  49 };
  50 MODULE_DEVICE_TABLE(acpi, fxos8700_acpi_match);
  51
  52 static const struct of_device_id fxos8700_of_match[] = {
  53         { .compatible = "nxp,fxos8700" },
  54         { }
  55 };
  56 MODULE_DEVICE_TABLE(of, fxos8700_of_match);
  57
  58 static struct i2c_driver fxos8700_i2c_driver = {
  59         .driver = {
  60                 .name                   = "fxos8700_i2c",
  61                 .acpi_match_table       = ACPI_PTR(fxos8700_acpi_match),
  62                 .of_match_table         = fxos8700_of_match,
  63         },
  64         .probe          = fxos8700_i2c_probe,
  65         .id_table       = fxos8700_i2c_id,
  66 };
  67 module_i2c_driver(fxos8700_i2c_driver);
  68
  69 MODULE_AUTHOR("Robert Jones <rjones@gateworks.com>");
  70 MODULE_DESCRIPTION("FXOS8700 I2C driver");
  71 MODULE_LICENSE("GPL v2");