| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * STMicroelectronics LSM9DS0 IMU driver |
| * |
| * Copyright (C) 2021, Intel Corporation |
| * |
| * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
| */ |
| |
| #include <linux/i2c.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/mod_devicetable.h> |
| #include <linux/regmap.h> |
| |
| #include <linux/iio/common/st_sensors_i2c.h> |
| |
| #include "st_lsm9ds0.h" |
| |
| static const struct of_device_id st_lsm9ds0_of_match[] = { |
| { |
| .compatible = "st,lsm9ds0-imu", |
| .data = LSM9DS0_IMU_DEV_NAME, |
| }, |
| {} |
| }; |
| MODULE_DEVICE_TABLE(of, st_lsm9ds0_of_match); |
| |
| static const struct i2c_device_id st_lsm9ds0_id_table[] = { |
| { LSM9DS0_IMU_DEV_NAME }, |
| {} |
| }; |
| MODULE_DEVICE_TABLE(i2c, st_lsm9ds0_id_table); |
| |
| static const struct regmap_config st_lsm9ds0_regmap_config = { |
| .reg_bits = 8, |
| .val_bits = 8, |
| .read_flag_mask = 0x80, |
| }; |
| |
| static int st_lsm9ds0_i2c_probe(struct i2c_client *client) |
| { |
| const struct regmap_config *config = &st_lsm9ds0_regmap_config; |
| struct device *dev = &client->dev; |
| struct st_lsm9ds0 *lsm9ds0; |
| struct regmap *regmap; |
| |
| st_sensors_dev_name_probe(dev, client->name, sizeof(client->name)); |
| |
| lsm9ds0 = devm_kzalloc(dev, sizeof(*lsm9ds0), GFP_KERNEL); |
| if (!lsm9ds0) |
| return -ENOMEM; |
| |
| lsm9ds0->dev = dev; |
| lsm9ds0->name = client->name; |
| lsm9ds0->irq = client->irq; |
| |
| regmap = devm_regmap_init_i2c(client, config); |
| if (IS_ERR(regmap)) |
| return PTR_ERR(regmap); |
| |
| i2c_set_clientdata(client, lsm9ds0); |
| |
| return st_lsm9ds0_probe(lsm9ds0, regmap); |
| } |
| |
| static struct i2c_driver st_lsm9ds0_driver = { |
| .driver = { |
| .name = "st-lsm9ds0-i2c", |
| .of_match_table = st_lsm9ds0_of_match, |
| }, |
| .probe_new = st_lsm9ds0_i2c_probe, |
| .id_table = st_lsm9ds0_id_table, |
| }; |
| module_i2c_driver(st_lsm9ds0_driver); |
| |
| MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>"); |
| MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU I2C driver"); |
| MODULE_LICENSE("GPL v2"); |