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/i2c.h>
  14 #include <linux/module.h>
  15 #include <linux/mod_devicetable.h>
  16 #include <linux/regmap.h>
  17
  18 #include "fxos8700.h"
  19
  20 static int fxos8700_i2c_probe(struct i2c_client *client)
  21 {
  22         const struct i2c_device_id *id = i2c_client_get_device_id(client);
  23         struct regmap *regmap;
  24         const char *name = NULL;
  25
  26         regmap = devm_regmap_init_i2c(client, &fxos8700_regmap_config);
  27         if (IS_ERR(regmap)) {
  28                 dev_err(&client->dev, "Failed to register i2c regmap %ld\n", PTR_ERR(regmap));
  29                 return PTR_ERR(regmap);
  30         }
  31
  32         if (id)
  33                 name = id->name;
  34
  35         return fxos8700_core_probe(&client->dev, regmap, name, false);
  36 }
  37
  38 static const struct i2c_device_id fxos8700_i2c_id[] = {
  39         { "fxos8700" },
  40         { }
  41 };
  42 MODULE_DEVICE_TABLE(i2c, fxos8700_i2c_id);
  43
  44 static const struct acpi_device_id fxos8700_acpi_match[] = {
  45         {"FXOS8700", 0},
  46         { }
  47 };
  48 MODULE_DEVICE_TABLE(acpi, fxos8700_acpi_match);
  49
  50 static const struct of_device_id fxos8700_of_match[] = {
  51         { .compatible = "nxp,fxos8700" },
  52         { }
  53 };
  54 MODULE_DEVICE_TABLE(of, fxos8700_of_match);
  55
  56 static struct i2c_driver fxos8700_i2c_driver = {
  57         .driver = {
  58                 .name                   = "fxos8700_i2c",
  59                 .acpi_match_table       = fxos8700_acpi_match,
  60                 .of_match_table         = fxos8700_of_match,
  61         },
  62         .probe          = fxos8700_i2c_probe,
  63         .id_table       = fxos8700_i2c_id,
  64 };
  65 module_i2c_driver(fxos8700_i2c_driver);
  66
  67 MODULE_AUTHOR("Robert Jones <rjones@gateworks.com>");
  68 MODULE_DESCRIPTION("FXOS8700 I2C driver");
  69 MODULE_LICENSE("GPL v2");