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// SPDX-License-Identifier: GPL-2.0-only
/*
* ADXL355 3-Axis Digital Accelerometer SPI driver
*
* Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com>
*/
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include <linux/property.h>
#include "adxl355.h"
static const struct regmap_config adxl355_spi_regmap_config = {
.reg_bits = 7,
.pad_bits = 1,
.val_bits = 8,
.read_flag_mask = BIT(0),
.max_register = 0x2F,
.rd_table = &adxl355_readable_regs_tbl,
.wr_table = &adxl355_writeable_regs_tbl,
};
static int adxl355_spi_probe(struct spi_device *spi)
{
const struct adxl355_chip_info *chip_data;
struct regmap *regmap;
chip_data = device_get_match_data(&spi->dev);
if (!chip_data) {
chip_data = (void *)spi_get_device_id(spi)->driver_data;
if (!chip_data)
return -EINVAL;
}
regmap = devm_regmap_init_spi(spi, &adxl355_spi_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&spi->dev, "Error initializing spi regmap: %ld\n",
PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return adxl355_core_probe(&spi->dev, regmap, chip_data);
}
static const struct spi_device_id adxl355_spi_id[] = {
{ "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] },
{ "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] },
{ }
};
MODULE_DEVICE_TABLE(spi, adxl355_spi_id);
static const struct of_device_id adxl355_of_match[] = {
{ .compatible = "adi,adxl355", .data = &adxl35x_chip_info[ADXL355] },
{ .compatible = "adi,adxl359", .data = &adxl35x_chip_info[ADXL359] },
{ }
};
MODULE_DEVICE_TABLE(of, adxl355_of_match);
static struct spi_driver adxl355_spi_driver = {
.driver = {
.name = "adxl355_spi",
.of_match_table = adxl355_of_match,
},
.probe = adxl355_spi_probe,
.id_table = adxl355_spi_id,
};
module_spi_driver(adxl355_spi_driver);
MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>");
MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer SPI driver");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS(IIO_ADXL355);
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