d372e5a19a
This driver has two parts, one for i2c and one for spi, since the chip can operate with both wire protocols. The core file has a common adxl345_core_remove() function which puts the chip into a powerdown state. This can be implemented with a devm_add_action_or_reset() hook. Doing that means we can register the IIO device with devm_iio_device_register() and get rid of the adxl345_core_remove() function. The dev_set_drvdata() call can be removed as there is no other user of this private data anymore. Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Link: https://lore.kernel.org/r/20210624080441.8710-1-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* ADXL345 3-Axis Digital Accelerometer I2C driver
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*
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* Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com>
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*
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* 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or
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* 0x53 (ALT ADDRESS pin grounded)
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*/
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include "adxl345.h"
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static const struct regmap_config adxl345_i2c_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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};
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static int adxl345_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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if (!id)
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return -ENODEV;
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regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config);
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if (IS_ERR(regmap)) {
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dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
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PTR_ERR(regmap));
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return PTR_ERR(regmap);
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}
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return adxl345_core_probe(&client->dev, regmap, id->driver_data,
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id->name);
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}
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static const struct i2c_device_id adxl345_i2c_id[] = {
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{ "adxl345", ADXL345 },
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{ "adxl375", ADXL375 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
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static const struct of_device_id adxl345_of_match[] = {
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{ .compatible = "adi,adxl345" },
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{ .compatible = "adi,adxl375" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, adxl345_of_match);
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static struct i2c_driver adxl345_i2c_driver = {
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.driver = {
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.name = "adxl345_i2c",
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.of_match_table = adxl345_of_match,
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},
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.probe = adxl345_i2c_probe,
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.id_table = adxl345_i2c_id,
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};
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module_i2c_driver(adxl345_i2c_driver);
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MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>");
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MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver");
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MODULE_LICENSE("GPL v2");
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