iio/gyro/fxas21002c_spi.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 /*
0003  * Driver for NXP Fxas21002c Gyroscope - SPI
0004  *
0005  * Copyright (C) 2019 Linaro Ltd.
0006  */
0007
0008 #include <linux/err.h>
0009 #include <linux/mod_devicetable.h>
0010 #include <linux/module.h>
0011 #include <linux/regmap.h>
0012 #include <linux/spi/spi.h>
0013
0014 #include "fxas21002c.h"
0015
0016 static const struct regmap_config fxas21002c_regmap_spi_conf = {
0017     .reg_bits = 8,
0018     .val_bits = 8,
0019     .max_register = FXAS21002C_REG_CTRL3,
0020 };
0021
0022 static int fxas21002c_spi_probe(struct spi_device *spi)
0023 {
0024     const struct spi_device_id *id = spi_get_device_id(spi);
0025     struct regmap *regmap;
0026
0027     regmap = devm_regmap_init_spi(spi, &fxas21002c_regmap_spi_conf);
0028     if (IS_ERR(regmap)) {
0029         dev_err(&spi->dev, "Failed to register spi regmap: %ld\n",
0030             PTR_ERR(regmap));
0031         return PTR_ERR(regmap);
0032     }
0033
0034     return fxas21002c_core_probe(&spi->dev, regmap, spi->irq, id->name);
0035 }
0036
0037 static void fxas21002c_spi_remove(struct spi_device *spi)
0038 {
0039     fxas21002c_core_remove(&spi->dev);
0040 }
0041
0042 static const struct spi_device_id fxas21002c_spi_id[] = {
0043     { "fxas21002c", 0 },
0044     { }
0045 };
0046 MODULE_DEVICE_TABLE(spi, fxas21002c_spi_id);
0047
0048 static const struct of_device_id fxas21002c_spi_of_match[] = {
0049     { .compatible = "nxp,fxas21002c", },
0050     { }
0051 };
0052 MODULE_DEVICE_TABLE(of, fxas21002c_spi_of_match);
0053
0054 static struct spi_driver fxas21002c_spi_driver = {
0055     .driver = {
0056         .name = "fxas21002c_spi",
0057         .pm = &fxas21002c_pm_ops,
0058         .of_match_table = fxas21002c_spi_of_match,
0059     },
0060     .probe      = fxas21002c_spi_probe,
0061     .remove     = fxas21002c_spi_remove,
0062     .id_table   = fxas21002c_spi_id,
0063 };
0064 module_spi_driver(fxas21002c_spi_driver);
0065
0066 MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
0067 MODULE_LICENSE("GPL v2");
0068 MODULE_DESCRIPTION("FXAS21002C SPI Gyro driver");