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 {
  23         const struct i2c_device_id *id = i2c_client_get_device_id(client);
  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 %ld\n", PTR_ERR(regmap));
  30                 return PTR_ERR(regmap);
  31         }
  32
  33         if (id)
  34                 name = id->name;
  35
  36         return fxos8700_core_probe(&client->dev, regmap, name, false);
  37 }
  38
  39 static const struct i2c_device_id fxos8700_i2c_id[] = {
  40         {"fxos8700", 0},
  41         { }
  42 };
  43 MODULE_DEVICE_TABLE(i2c, fxos8700_i2c_id);
  44
  45 static const struct acpi_device_id fxos8700_acpi_match[] = {
  46         {"FXOS8700", 0},
  47         { }
  48 };
  49 MODULE_DEVICE_TABLE(acpi, fxos8700_acpi_match);
  50
  51 static const struct of_device_id fxos8700_of_match[] = {
  52         { .compatible = "nxp,fxos8700" },
  53         { }
  54 };
  55 MODULE_DEVICE_TABLE(of, fxos8700_of_match);
  56
  57 static struct i2c_driver fxos8700_i2c_driver = {
  58         .driver = {
  59                 .name                   = "fxos8700_i2c",
  60                 .acpi_match_table       = ACPI_PTR(fxos8700_acpi_match),
  61                 .of_match_table         = fxos8700_of_match,
  62         },
  63         .probe          = fxos8700_i2c_probe,
  64         .id_table       = fxos8700_i2c_id,
  65 };
  66 module_i2c_driver(fxos8700_i2c_driver);
  67
  68 MODULE_AUTHOR("Robert Jones <rjones@gateworks.com>");
  69 MODULE_DESCRIPTION("FXOS8700 I2C driver");
  70 MODULE_LICENSE("GPL v2");