LXR linux/drivers/iio/magnetometer/bmc150_magn

   1/*
   2 * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips:
   3 *  - BMC150
   4 *  - BMC156
   5 *  - BMM150
   6 *
   7 * Copyright (c) 2016, Intel Corporation.
   8 *
   9 * This program is free software; you can redistribute it and/or modify it
  10 * under the terms and conditions of the GNU General Public License,
  11 * version 2, as published by the Free Software Foundation.
  12 *
  13 * This program is distributed in the hope it will be useful, but WITHOUT
  14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  16 * more details.
  17 */
  18#include <linux/device.h>
  19#include <linux/mod_devicetable.h>
  20#include <linux/i2c.h>
  21#include <linux/module.h>
  22#include <linux/acpi.h>
  23#include <linux/regmap.h>
  24
  25#include "bmc150_magn.h"
  26
  27static int bmc150_magn_i2c_probe(struct i2c_client *client,
  28                                 const struct i2c_device_id *id)
  29{
  30        struct regmap *regmap;
  31        const char *name = NULL;
  32
  33        regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config);
  34        if (IS_ERR(regmap)) {
  35                dev_err(&client->dev, "Failed to initialize i2c regmap\n");
  36                return PTR_ERR(regmap);
  37        }
  38
  39        if (id)
  40                name = id->name;
  41
  42        return bmc150_magn_probe(&client->dev, regmap, client->irq, name);
  43}
  44
  45static int bmc150_magn_i2c_remove(struct i2c_client *client)
  46{
  47        return bmc150_magn_remove(&client->dev);
  48}
  49
  50static const struct acpi_device_id bmc150_magn_acpi_match[] = {
  51        {"BMC150B", 0},
  52        {"BMC156B", 0},
  53        {"BMM150B", 0},
  54        {},
  55};
  56MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
  57
  58static const struct i2c_device_id bmc150_magn_i2c_id[] = {
  59        {"bmc150_magn", 0},
  60        {"bmc156_magn", 0},
  61        {"bmm150_magn", 0},
  62        {}
  63};
  64MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id);
  65
  66static const struct of_device_id bmc150_magn_of_match[] = {
  67        { .compatible = "bosch,bmc150_magn" },
  68        { .compatible = "bosch,bmc156_magn" },
  69        { .compatible = "bosch,bmm150_magn" },
  70        { }
  71};
  72MODULE_DEVICE_TABLE(of, bmc150_magn_of_match);
  73
  74static struct i2c_driver bmc150_magn_driver = {
  75        .driver = {
  76                .name   = "bmc150_magn_i2c",
  77                .of_match_table = bmc150_magn_of_match,
  78                .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
  79                .pm     = &bmc150_magn_pm_ops,
  80        },
  81        .probe          = bmc150_magn_i2c_probe,
  82        .remove         = bmc150_magn_i2c_remove,
  83        .id_table       = bmc150_magn_i2c_id,
  84};
  85module_i2c_driver(bmc150_magn_driver);
  86
  87MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
  88MODULE_LICENSE("GPL v2");
  89MODULE_DESCRIPTION("BMC150 I2C magnetometer driver");
  90