drivers/iio/gyro/fxas21002c_spi.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Driver for NXP Fxas21002c Gyroscope - SPI
   4  *
   5  * Copyright (C) 2019 Linaro Ltd.
   6  */
   7
   8 #include <linux/err.h>
   9 #include <linux/mod_devicetable.h>
  10 #include <linux/module.h>
  11 #include <linux/regmap.h>
  12 #include <linux/spi/spi.h>
  13
  14 #include "fxas21002c.h"
  15
  16 static const struct regmap_config fxas21002c_regmap_spi_conf = {
  17         .reg_bits = 8,
  18         .val_bits = 8,
  19         .max_register = FXAS21002C_REG_CTRL3,
  20 };
  21
  22 static int fxas21002c_spi_probe(struct spi_device *spi)
  23 {
  24         const struct spi_device_id *id = spi_get_device_id(spi);
  25         struct regmap *regmap;
  26
  27         regmap = devm_regmap_init_spi(spi, &fxas21002c_regmap_spi_conf);
  28         if (IS_ERR(regmap)) {
  29                 dev_err(&spi->dev, "Failed to register spi regmap: %ld\n",
  30                         PTR_ERR(regmap));
  31                 return PTR_ERR(regmap);
  32         }
  33
  34         return fxas21002c_core_probe(&spi->dev, regmap, spi->irq, id->name);
  35 }
  36
  37 static void fxas21002c_spi_remove(struct spi_device *spi)
  38 {
  39         fxas21002c_core_remove(&spi->dev);
  40 }
  41
  42 static const struct spi_device_id fxas21002c_spi_id[] = {
  43         { "fxas21002c", 0 },
  44         { }
  45 };
  46 MODULE_DEVICE_TABLE(spi, fxas21002c_spi_id);
  47
  48 static const struct of_device_id fxas21002c_spi_of_match[] = {
  49         { .compatible = "nxp,fxas21002c", },
  50         { }
  51 };
  52 MODULE_DEVICE_TABLE(of, fxas21002c_spi_of_match);
  53
  54 static struct spi_driver fxas21002c_spi_driver = {
  55         .driver = {
  56                 .name = "fxas21002c_spi",
  57                 .pm = &fxas21002c_pm_ops,
  58                 .of_match_table = fxas21002c_spi_of_match,
  59         },
  60         .probe          = fxas21002c_spi_probe,
  61         .remove         = fxas21002c_spi_remove,
  62         .id_table       = fxas21002c_spi_id,
  63 };
  64 module_spi_driver(fxas21002c_spi_driver);
  65
  66 MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
  67 MODULE_LICENSE("GPL v2");
  68 MODULE_DESCRIPTION("FXAS21002C SPI Gyro driver");