Quelle  fxos8700_i2c.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * FXOS8700 - NXP IMU, I2C bits
 *
 * 7-bit I2C slave address determined by SA1 and SA0 logic level
 * inputs represented in the following table:
 *      SA1  |  SA0  |  Slave Address
 *      0    |  0    |  0x1E
 *      0    |  1    |  0x1D
 *      1    |  0    |  0x1C
 *      1    |  1    |  0x1F
 */
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/regmap.h>

#include "fxos8700.h"

static int fxos8700_i2c_probe(struct i2c_client *client)
{
 const struct i2c_device_id *id = i2c_client_get_device_id(client);
 struct regmap *regmap;
 const char *name = NULL;

 regmap = devm_regmap_init_i2c(client, &fxos8700_regmap_config);
 if (IS_ERR(regmap)) {
  dev_err(&client->dev, "Failed to register i2c regmap %ld\n", PTR_ERR(regmap));
  return PTR_ERR(regmap);
 }

 if (id)
  name = id->name;

 return fxos8700_core_probe(&client->dev, regmap, name, false);
}

static const struct i2c_device_id fxos8700_i2c_id[] = {
 { "fxos8700" },
 { }
};
MODULE_DEVICE_TABLE(i2c, fxos8700_i2c_id);

static const struct acpi_device_id fxos8700_acpi_match[] = {
 {"FXOS8700", 0},
 { }
};
MODULE_DEVICE_TABLE(acpi, fxos8700_acpi_match);

static const struct of_device_id fxos8700_of_match[] = {
 { .compatible = "nxp,fxos8700" },
 { }
};
MODULE_DEVICE_TABLE(of, fxos8700_of_match);

static struct i2c_driver fxos8700_i2c_driver = {
 .driver = {
  .name                   = "fxos8700_i2c",
  .acpi_match_table       = fxos8700_acpi_match,
  .of_match_table         = fxos8700_of_match,
 },
 .probe          = fxos8700_i2c_probe,
 .id_table       = fxos8700_i2c_id,
};
module_i2c_driver(fxos8700_i2c_driver);

MODULE_AUTHOR("Robert Jones ");
MODULE_DESCRIPTION("FXOS8700 I2C driver");
MODULE_LICENSE("GPL v2");