diff options
Diffstat (limited to 'drivers/iio/accel/adxl345_i2c.c')
-rw-r--r-- | drivers/iio/accel/adxl345_i2c.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/iio/accel/adxl345_i2c.c b/drivers/iio/accel/adxl345_i2c.c new file mode 100644 index 000000000..098cd83f9 --- /dev/null +++ b/drivers/iio/accel/adxl345_i2c.c @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ADXL345 3-Axis Digital Accelerometer I2C driver + * + * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> + * + * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or + * 0x53 (ALT ADDRESS pin grounded) + */ + +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/regmap.h> + +#include "adxl345.h" + +static const struct regmap_config adxl345_i2c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int adxl345_i2c_probe(struct i2c_client *client) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(&client->dev, PTR_ERR(regmap), "Error initializing regmap\n"); + + return adxl345_core_probe(&client->dev, regmap); +} + +static const struct i2c_device_id adxl345_i2c_id[] = { + { "adxl345", ADXL345 }, + { "adxl375", ADXL375 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id); + +static const struct of_device_id adxl345_of_match[] = { + { .compatible = "adi,adxl345", .data = (const void *)ADXL345 }, + { .compatible = "adi,adxl375", .data = (const void *)ADXL375 }, + { } +}; +MODULE_DEVICE_TABLE(of, adxl345_of_match); + +static const struct acpi_device_id adxl345_acpi_match[] = { + { "ADS0345", ADXL345 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match); + +static struct i2c_driver adxl345_i2c_driver = { + .driver = { + .name = "adxl345_i2c", + .of_match_table = adxl345_of_match, + .acpi_match_table = adxl345_acpi_match, + }, + .probe_new = adxl345_i2c_probe, + .id_table = adxl345_i2c_id, +}; +module_i2c_driver(adxl345_i2c_driver); + +MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>"); +MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver"); +MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS(IIO_ADXL345); |