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69 lines
1.6 KiB
69 lines
1.6 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* ADXL372 3-Axis Digital Accelerometer I2C driver |
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* |
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* Copyright 2018 Analog Devices Inc. |
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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 "adxl372.h" |
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static const struct regmap_config adxl372_regmap_config = { |
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.reg_bits = 8, |
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.val_bits = 8, |
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.readable_noinc_reg = adxl372_readable_noinc_reg, |
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}; |
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static int adxl372_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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unsigned int regval; |
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int ret; |
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regmap = devm_regmap_init_i2c(client, &adxl372_regmap_config); |
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if (IS_ERR(regmap)) |
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return PTR_ERR(regmap); |
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ret = regmap_read(regmap, ADXL372_REVID, ®val); |
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if (ret < 0) |
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return ret; |
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/* Starting with the 3rd revision an I2C chip bug was fixed */ |
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if (regval < 3) |
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dev_warn(&client->dev, |
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"I2C might not work properly with other devices on the bus"); |
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return adxl372_probe(&client->dev, regmap, client->irq, id->name); |
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} |
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static const struct i2c_device_id adxl372_i2c_id[] = { |
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{ "adxl372", 0 }, |
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{} |
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}; |
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MODULE_DEVICE_TABLE(i2c, adxl372_i2c_id); |
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static const struct of_device_id adxl372_of_match[] = { |
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{ .compatible = "adi,adxl372" }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(of, adxl372_of_match); |
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static struct i2c_driver adxl372_i2c_driver = { |
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.driver = { |
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.name = "adxl372_i2c", |
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.of_match_table = adxl372_of_match, |
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}, |
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.probe = adxl372_i2c_probe, |
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.id_table = adxl372_i2c_id, |
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}; |
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module_i2c_driver(adxl372_i2c_driver); |
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MODULE_AUTHOR("Stefan Popa <[email protected]>"); |
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MODULE_DESCRIPTION("Analog Devices ADXL372 3-axis accelerometer I2C driver"); |
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MODULE_LICENSE("GPL");
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