mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 14:11:52 +00:00
d3532d6975
Add support for ADXL359 device in already existing ADXL355 driver. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/adxl359.pdf Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com> Link: https://lore.kernel.org/r/20221031105129.47740-4-ramona.bolboaca@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
// 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);
|