80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* ADXL355 3-Axis Digital Accelerometer I2C driver
|
|
*
|
|
* Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com>
|
|
*/
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/module.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#include "adxl355.h"
|
|
|
|
static const struct regmap_config adxl355_i2c_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = 0x2F,
|
|
.rd_table = &adxl355_readable_regs_tbl,
|
|
.wr_table = &adxl355_writeable_regs_tbl,
|
|
};
|
|
|
|
static int adxl355_i2c_probe(struct i2c_client *client)
|
|
{
|
|
struct regmap *regmap;
|
|
const struct adxl355_chip_info *chip_data;
|
|
const struct i2c_device_id *adxl355;
|
|
|
|
chip_data = device_get_match_data(&client->dev);
|
|
if (!chip_data) {
|
|
adxl355 = to_i2c_driver(client->dev.driver)->id_table;
|
|
if (!adxl355)
|
|
return -EINVAL;
|
|
|
|
chip_data = (void *)i2c_match_id(adxl355, client)->driver_data;
|
|
|
|
if (!chip_data)
|
|
return -EINVAL;
|
|
}
|
|
|
|
regmap = devm_regmap_init_i2c(client, &adxl355_i2c_regmap_config);
|
|
if (IS_ERR(regmap)) {
|
|
dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
|
|
PTR_ERR(regmap));
|
|
|
|
return PTR_ERR(regmap);
|
|
}
|
|
|
|
return adxl355_core_probe(&client->dev, regmap, chip_data);
|
|
}
|
|
|
|
static const struct i2c_device_id adxl355_i2c_id[] = {
|
|
{ "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] },
|
|
{ "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, adxl355_i2c_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 i2c_driver adxl355_i2c_driver = {
|
|
.driver = {
|
|
.name = "adxl355_i2c",
|
|
.of_match_table = adxl355_of_match,
|
|
},
|
|
.probe_new = adxl355_i2c_probe,
|
|
.id_table = adxl355_i2c_id,
|
|
};
|
|
module_i2c_driver(adxl355_i2c_driver);
|
|
|
|
MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>");
|
|
MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer I2C driver");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_IMPORT_NS(IIO_ADXL355);
|