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// SPDX-License-Identifier: GPL-2.0-only
/*
* Bosch triaxial acceleration sensor
*
* Copyright (c) 2025 Petre Rodan <petre.rodan@subdimension.ro>
*
* Datasheet: https://media.digikey.com/pdf/Data%20Sheets/Bosch/BMA220.pdf
* I2C address is either 0x0b or 0x0a depending on CSB (pin 10)
*/
#include <linux/bitfield.h>
#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/types.h>
#include "bma220.h"
static int bma220_set_wdt(struct regmap *regmap, const u8 val)
{
return regmap_update_bits(regmap, BMA220_REG_WDT, BMA220_WDT_MASK,
FIELD_PREP(BMA220_WDT_MASK, val));
}
static int bma220_i2c_probe(struct i2c_client *client)
{
struct regmap *regmap;
int ret;
regmap = devm_regmap_init_i2c(client, &bma220_i2c_regmap_config);
if (IS_ERR(regmap))
return dev_err_probe(&client->dev, PTR_ERR(regmap),
"failed to create regmap\n");
ret = bma220_common_probe(&client->dev, regmap, client->irq);
if (ret)
return ret;
return bma220_set_wdt(regmap, BMA220_WDT_1MS);
}
static const struct of_device_id bma220_i2c_match[] = {
{ .compatible = "bosch,bma220" },
{ }
};
MODULE_DEVICE_TABLE(of, bma220_i2c_match);
static const struct i2c_device_id bma220_i2c_id[] = {
{ "bma220" },
{ }
};
MODULE_DEVICE_TABLE(i2c, bma220_i2c_id);
static struct i2c_driver bma220_i2c_driver = {
.driver = {
.name = "bma220_i2c",
.pm = pm_sleep_ptr(&bma220_pm_ops),
.of_match_table = bma220_i2c_match,
},
.probe = bma220_i2c_probe,
.id_table = bma220_i2c_id,
};
module_i2c_driver(bma220_i2c_driver);
MODULE_AUTHOR("Petre Rodan <petre.rodan@subdimension.ro>");
MODULE_DESCRIPTION("Bosch triaxial acceleration sensor i2c driver");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS("IIO_BOSCH_BMA220");
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