Files
linux/drivers/iio/accel/mma7455_i2c.c
Uwe Kleine-König (The Capable Hub) f68afce8e8 iio: Initialize i2c_device_id arrays using member names
While being less compact, using named initializers allows to more easily
see which members of the structs are assigned which value without having
to lookup the declaration of the struct. And it's also more robust
against changes to the struct definition.

The mentioned robustness is relevant for a planned change to struct
i2c_device_id that replaces .driver_data by an anonymous union.

This patch doesn't modify the compiled arrays, only their representation
in source form benefits. The former was confirmed with x86 and arm64
builds.

Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
Reviewed-by: Siratul Islam <email@sirat.me>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2026-05-31 11:01:46 +01:00

63 lines
1.5 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* IIO accel I2C driver for Freescale MMA7455L 3-axis 10-bit accelerometer
* Copyright 2015 Joachim Eastwood <manabian@gmail.com>
*/
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include "mma7455.h"
static int mma7455_i2c_probe(struct i2c_client *i2c)
{
const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
struct regmap *regmap;
const char *name = NULL;
regmap = devm_regmap_init_i2c(i2c, &mma7455_core_regmap);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
if (id)
name = id->name;
return mma7455_core_probe(&i2c->dev, regmap, name);
}
static void mma7455_i2c_remove(struct i2c_client *i2c)
{
mma7455_core_remove(&i2c->dev);
}
static const struct i2c_device_id mma7455_i2c_ids[] = {
{ .name = "mma7455" },
{ .name = "mma7456" },
{ }
};
MODULE_DEVICE_TABLE(i2c, mma7455_i2c_ids);
static const struct of_device_id mma7455_of_match[] = {
{ .compatible = "fsl,mma7455" },
{ .compatible = "fsl,mma7456" },
{ }
};
MODULE_DEVICE_TABLE(of, mma7455_of_match);
static struct i2c_driver mma7455_i2c_driver = {
.probe = mma7455_i2c_probe,
.remove = mma7455_i2c_remove,
.id_table = mma7455_i2c_ids,
.driver = {
.name = "mma7455-i2c",
.of_match_table = mma7455_of_match,
},
};
module_i2c_driver(mma7455_i2c_driver);
MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
MODULE_DESCRIPTION("Freescale MMA7455L I2C accelerometer driver");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS("IIO_MMA7455");