162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Support for I2C-interfaced Bosch BNO055 IMU. 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (C) 2021-2022 Istituto Italiano di Tecnologia 662306a36Sopenharmony_ci * Electronic Design Laboratory 762306a36Sopenharmony_ci * Written by Andrea Merello <andrea.merello@iit.it> 862306a36Sopenharmony_ci */ 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci#include <linux/i2c.h> 1162306a36Sopenharmony_ci#include <linux/mod_devicetable.h> 1262306a36Sopenharmony_ci#include <linux/module.h> 1362306a36Sopenharmony_ci#include <linux/regmap.h> 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci#include "bno055.h" 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci#define BNO055_I2C_XFER_BURST_BREAK_THRESHOLD 3 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_cistatic int bno055_i2c_probe(struct i2c_client *client) 2062306a36Sopenharmony_ci{ 2162306a36Sopenharmony_ci struct regmap *regmap; 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci regmap = devm_regmap_init_i2c(client, &bno055_regmap_config); 2462306a36Sopenharmony_ci if (IS_ERR(regmap)) 2562306a36Sopenharmony_ci return dev_err_probe(&client->dev, PTR_ERR(regmap), 2662306a36Sopenharmony_ci "Unable to init register map"); 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci return bno055_probe(&client->dev, regmap, 2962306a36Sopenharmony_ci BNO055_I2C_XFER_BURST_BREAK_THRESHOLD, true); 3062306a36Sopenharmony_ci} 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_cistatic const struct i2c_device_id bno055_i2c_id[] = { 3362306a36Sopenharmony_ci {"bno055", 0}, 3462306a36Sopenharmony_ci { } 3562306a36Sopenharmony_ci}; 3662306a36Sopenharmony_ciMODULE_DEVICE_TABLE(i2c, bno055_i2c_id); 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_cistatic const struct of_device_id __maybe_unused bno055_i2c_of_match[] = { 3962306a36Sopenharmony_ci { .compatible = "bosch,bno055" }, 4062306a36Sopenharmony_ci { } 4162306a36Sopenharmony_ci}; 4262306a36Sopenharmony_ciMODULE_DEVICE_TABLE(of, bno055_i2c_of_match); 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_cistatic struct i2c_driver bno055_driver = { 4562306a36Sopenharmony_ci .driver = { 4662306a36Sopenharmony_ci .name = "bno055-i2c", 4762306a36Sopenharmony_ci .of_match_table = bno055_i2c_of_match, 4862306a36Sopenharmony_ci }, 4962306a36Sopenharmony_ci .probe = bno055_i2c_probe, 5062306a36Sopenharmony_ci .id_table = bno055_i2c_id, 5162306a36Sopenharmony_ci}; 5262306a36Sopenharmony_cimodule_i2c_driver(bno055_driver); 5362306a36Sopenharmony_ci 5462306a36Sopenharmony_ciMODULE_AUTHOR("Andrea Merello"); 5562306a36Sopenharmony_ciMODULE_DESCRIPTION("Bosch BNO055 I2C interface"); 5662306a36Sopenharmony_ciMODULE_IMPORT_NS(IIO_BNO055); 5762306a36Sopenharmony_ciMODULE_LICENSE("GPL"); 58