LXR linux/drivers/iio/imu/st_lsm9ds0/st_lsm9ds0

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * STMicroelectronics LSM9DS0 IMU driver
   4 *
   5 * Copyright (C) 2021, Intel Corporation
   6 *
   7 * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
   8 */
   9
  10#include <linux/i2c.h>
  11#include <linux/kernel.h>
  12#include <linux/module.h>
  13#include <linux/mod_devicetable.h>
  14#include <linux/regmap.h>
  15
  16#include <linux/iio/common/st_sensors_i2c.h>
  17
  18#include "st_lsm9ds0.h"
  19
  20static const struct of_device_id st_lsm9ds0_of_match[] = {
  21        {
  22                .compatible = "st,lsm9ds0-imu",
  23                .data = LSM9DS0_IMU_DEV_NAME,
  24        },
  25        {}
  26};
  27MODULE_DEVICE_TABLE(of, st_lsm9ds0_of_match);
  28
  29static const struct i2c_device_id st_lsm9ds0_id_table[] = {
  30        { LSM9DS0_IMU_DEV_NAME },
  31        {}
  32};
  33MODULE_DEVICE_TABLE(i2c, st_lsm9ds0_id_table);
  34
  35static const struct regmap_config st_lsm9ds0_regmap_config = {
  36        .reg_bits       = 8,
  37        .val_bits       = 8,
  38        .read_flag_mask = 0x80,
  39};
  40
  41static int st_lsm9ds0_i2c_probe(struct i2c_client *client)
  42{
  43        const struct regmap_config *config = &st_lsm9ds0_regmap_config;
  44        struct device *dev = &client->dev;
  45        struct st_lsm9ds0 *lsm9ds0;
  46        struct regmap *regmap;
  47
  48        st_sensors_dev_name_probe(dev, client->name, sizeof(client->name));
  49
  50        lsm9ds0 = devm_kzalloc(dev, sizeof(*lsm9ds0), GFP_KERNEL);
  51        if (!lsm9ds0)
  52                return -ENOMEM;
  53
  54        lsm9ds0->dev = dev;
  55        lsm9ds0->name = client->name;
  56        lsm9ds0->irq = client->irq;
  57
  58        regmap = devm_regmap_init_i2c(client, config);
  59        if (IS_ERR(regmap))
  60                return PTR_ERR(regmap);
  61
  62        i2c_set_clientdata(client, lsm9ds0);
  63
  64        return st_lsm9ds0_probe(lsm9ds0, regmap);
  65}
  66
  67static int st_lsm9ds0_i2c_remove(struct i2c_client *client)
  68{
  69        return st_lsm9ds0_remove(i2c_get_clientdata(client));
  70}
  71
  72static struct i2c_driver st_lsm9ds0_driver = {
  73        .driver = {
  74                .name = "st-lsm9ds0-i2c",
  75                .of_match_table = st_lsm9ds0_of_match,
  76        },
  77        .probe_new = st_lsm9ds0_i2c_probe,
  78        .remove = st_lsm9ds0_i2c_remove,
  79        .id_table = st_lsm9ds0_id_table,
  80};
  81module_i2c_driver(st_lsm9ds0_driver);
  82
  83MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
  84MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU I2C driver");
  85MODULE_LICENSE("GPL v2");
  86