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465c811f1f
Add a IIO driver for the Bosch BMA400 3-axes ultra-low power accelerometer. The driver supports reading from the acceleration and temperature registers. The driver also supports reading and configuring the output data rate, oversampling ratio, and scale. Signed-off-by: Dan Robertson <dan@dlrobertson.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* I2C IIO driver for Bosch BMA400 triaxial acceleration sensor.
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*
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* Copyright 2019 Dan Robertson <dan@dlrobertson.com>
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*
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* I2C address is either 0x14 or 0x15 depending on SDO
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*/
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#include <linux/i2c.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include "bma400.h"
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static int bma400_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct regmap *regmap;
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regmap = devm_regmap_init_i2c(client, &bma400_regmap_config);
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if (IS_ERR(regmap)) {
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dev_err(&client->dev, "failed to create regmap\n");
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return PTR_ERR(regmap);
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}
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return bma400_probe(&client->dev, regmap, id->name);
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}
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static int bma400_i2c_remove(struct i2c_client *client)
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{
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return bma400_remove(&client->dev);
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}
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static const struct i2c_device_id bma400_i2c_ids[] = {
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{ "bma400", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, bma400_i2c_ids);
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static const struct of_device_id bma400_of_i2c_match[] = {
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{ .compatible = "bosch,bma400" },
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{ }
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};
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MODULE_DEVICE_TABLE(of, bma400_of_i2c_match);
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static struct i2c_driver bma400_i2c_driver = {
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.driver = {
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.name = "bma400",
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.of_match_table = bma400_of_i2c_match,
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},
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.probe = bma400_i2c_probe,
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.remove = bma400_i2c_remove,
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.id_table = bma400_i2c_ids,
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};
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module_i2c_driver(bma400_i2c_driver);
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MODULE_AUTHOR("Dan Robertson <dan@dlrobertson.com>");
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MODULE_DESCRIPTION("Bosch BMA400 triaxial acceleration sensor (I2C)");
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MODULE_LICENSE("GPL");
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