drivers/iio/gyro/fxas21002c_i2c.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Driver for NXP FXAS21002C Gyroscope - I2C
   4  *
   5  * Copyright (C) 2018 Linaro Ltd.
   6  */
   7
   8 #include <linux/err.h>
   9 #include <linux/i2c.h>
  10 #include <linux/mod_devicetable.h>
  11 #include <linux/module.h>
  12 #include <linux/regmap.h>
  13
  14 #include "fxas21002c.h"
  15
  16 static const struct regmap_config fxas21002c_regmap_i2c_conf = {
  17         .reg_bits = 8,
  18         .val_bits = 8,
  19         .max_register = FXAS21002C_REG_CTRL3,
  20 };
  21
  22 static int fxas21002c_i2c_probe(struct i2c_client *i2c)
  23 {
  24         struct regmap *regmap;
  25
  26         regmap = devm_regmap_init_i2c(i2c, &fxas21002c_regmap_i2c_conf);
  27         if (IS_ERR(regmap)) {
  28                 dev_err(&i2c->dev, "Failed to register i2c regmap: %ld\n",
  29                         PTR_ERR(regmap));
  30                 return PTR_ERR(regmap);
  31         }
  32
  33         return fxas21002c_core_probe(&i2c->dev, regmap, i2c->irq, i2c->name);
  34 }
  35
  36 static int fxas21002c_i2c_remove(struct i2c_client *i2c)
  37 {
  38         fxas21002c_core_remove(&i2c->dev);
  39
  40         return 0;
  41 }
  42
  43 static const struct i2c_device_id fxas21002c_i2c_id[] = {
  44         { "fxas21002c", 0 },
  45         { }
  46 };
  47 MODULE_DEVICE_TABLE(i2c, fxas21002c_i2c_id);
  48
  49 static const struct of_device_id fxas21002c_i2c_of_match[] = {
  50         { .compatible = "nxp,fxas21002c", },
  51         { }
  52 };
  53 MODULE_DEVICE_TABLE(of, fxas21002c_i2c_of_match);
  54
  55 static struct i2c_driver fxas21002c_i2c_driver = {
  56         .driver = {
  57                 .name = "fxas21002c_i2c",
  58                 .pm = &fxas21002c_pm_ops,
  59                 .of_match_table = fxas21002c_i2c_of_match,
  60         },
  61         .probe_new      = fxas21002c_i2c_probe,
  62         .remove         = fxas21002c_i2c_remove,
  63         .id_table       = fxas21002c_i2c_id,
  64 };
  65 module_i2c_driver(fxas21002c_i2c_driver);
  66
  67 MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
  68 MODULE_LICENSE("GPL v2");
  69 MODULE_DESCRIPTION("FXAS21002C I2C Gyro driver");