1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Support for I2C-interfaced Bosch BNO055 IMU. 4 * 5 * Copyright (C) 2021-2022 Istituto Italiano di Tecnologia 6 * Electronic Design Laboratory 7 * Written by Andrea Merello <andrea.merello@iit.it> 8 */ 9 10 #include <linux/i2c.h> 11 #include <linux/mod_devicetable.h> 12 #include <linux/module.h> 13 #include <linux/regmap.h> 14 15 #include "bno055.h" 16 17 #define BNO055_I2C_XFER_BURST_BREAK_THRESHOLD 3 18 19 static int bno055_i2c_probe(struct i2c_client *client) 20 { 21 struct regmap *regmap; 22 23 regmap = devm_regmap_init_i2c(client, &bno055_regmap_config); 24 if (IS_ERR(regmap)) 25 return dev_err_probe(&client->dev, PTR_ERR(regmap), 26 "Unable to init register map"); 27 28 return bno055_probe(&client->dev, regmap, 29 BNO055_I2C_XFER_BURST_BREAK_THRESHOLD, true); 30 } 31 32 static const struct i2c_device_id bno055_i2c_id[] = { 33 {"bno055", 0}, 34 { } 35 }; 36 MODULE_DEVICE_TABLE(i2c, bno055_i2c_id); 37 38 static const struct of_device_id __maybe_unused bno055_i2c_of_match[] = { 39 { .compatible = "bosch,bno055" }, 40 { } 41 }; 42 MODULE_DEVICE_TABLE(of, bno055_i2c_of_match); 43 44 static struct i2c_driver bno055_driver = { 45 .driver = { 46 .name = "bno055-i2c", 47 .of_match_table = bno055_i2c_of_match, 48 }, 49 .probe_new = bno055_i2c_probe, 50 .id_table = bno055_i2c_id, 51 }; 52 module_i2c_driver(bno055_driver); 53 54 MODULE_AUTHOR("Andrea Merello"); 55 MODULE_DESCRIPTION("Bosch BNO055 I2C interface"); 56 MODULE_IMPORT_NS(IIO_BNO055); 57 MODULE_LICENSE("GPL"); 58