linux-stable/drivers/iio/accel/adxl345_i2c.c
Biju Das dcc3ac1381 iio: accel: adxl345: Simplify adxl345_read_raw()
Simplify adxl345_read_raw() by adding uscale variable to
struct adxl345_chip_info. Also convert variables adxl3{4,7}5_uscale to
macros and use it in OF/ACPI/ID match table.

Drop enum adxl345_device_type as there is no user.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230903090051.39274-3-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12 10:42:04 +01:00

77 lines
2 KiB
C

// 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 adxl345_chip_info adxl345_i2c_info = {
.name = "adxl345",
.uscale = ADXL345_USCALE,
};
static const struct adxl345_chip_info adxl375_i2c_info = {
.name = "adxl375",
.uscale = ADXL375_USCALE,
};
static const struct i2c_device_id adxl345_i2c_id[] = {
{ "adxl345", (kernel_ulong_t)&adxl345_i2c_info },
{ "adxl375", (kernel_ulong_t)&adxl375_i2c_info },
{ }
};
MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
static const struct of_device_id adxl345_of_match[] = {
{ .compatible = "adi,adxl345", .data = &adxl345_i2c_info },
{ .compatible = "adi,adxl375", .data = &adxl375_i2c_info },
{ }
};
MODULE_DEVICE_TABLE(of, adxl345_of_match);
static const struct acpi_device_id adxl345_acpi_match[] = {
{ "ADS0345", (kernel_ulong_t)&adxl345_i2c_info },
{ }
};
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 = 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);