80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* STMicroelectronics LSM9DS0 IMU driver
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*
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* Copyright (C) 2021, Intel Corporation
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*
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* Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/regmap.h>
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#include <linux/spi/spi.h>
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#include <linux/iio/common/st_sensors_spi.h>
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#include "st_lsm9ds0.h"
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static const struct of_device_id st_lsm9ds0_of_match[] = {
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{
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.compatible = "st,lsm9ds0-imu",
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.data = LSM9DS0_IMU_DEV_NAME,
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},
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{}
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};
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MODULE_DEVICE_TABLE(of, st_lsm9ds0_of_match);
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static const struct spi_device_id st_lsm9ds0_id_table[] = {
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{ LSM9DS0_IMU_DEV_NAME },
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{}
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};
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MODULE_DEVICE_TABLE(spi, st_lsm9ds0_id_table);
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static const struct regmap_config st_lsm9ds0_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.read_flag_mask = 0xc0,
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};
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static int st_lsm9ds0_spi_probe(struct spi_device *spi)
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{
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struct device *dev = &spi->dev;
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struct st_lsm9ds0 *lsm9ds0;
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struct regmap *regmap;
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st_sensors_dev_name_probe(dev, spi->modalias, sizeof(spi->modalias));
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lsm9ds0 = devm_kzalloc(dev, sizeof(*lsm9ds0), GFP_KERNEL);
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if (!lsm9ds0)
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return -ENOMEM;
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lsm9ds0->dev = dev;
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lsm9ds0->name = spi->modalias;
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lsm9ds0->irq = spi->irq;
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regmap = devm_regmap_init_spi(spi, &st_lsm9ds0_regmap_config);
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if (IS_ERR(regmap))
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return PTR_ERR(regmap);
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spi_set_drvdata(spi, lsm9ds0);
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return st_lsm9ds0_probe(lsm9ds0, regmap);
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}
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static struct spi_driver st_lsm9ds0_driver = {
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.driver = {
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.name = "st-lsm9ds0-spi",
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.of_match_table = st_lsm9ds0_of_match,
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},
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.probe = st_lsm9ds0_spi_probe,
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.id_table = st_lsm9ds0_id_table,
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};
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module_spi_driver(st_lsm9ds0_driver);
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MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
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MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU SPI driver");
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MODULE_LICENSE("GPL v2");
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MODULE_IMPORT_NS(IIO_ST_SENSORS);
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