1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * BMI160 - Bosch IMU, I2C bits 4 * 5 * Copyright (c) 2016, Intel Corporation. 6 * 7 * 7-bit I2C slave address is: 8 * - 0x68 if SDO is pulled to GND 9 * - 0x69 if SDO is pulled to VDDIO 10 */ 11 #include <linux/i2c.h> 12 #include <linux/mod_devicetable.h> 13 #include <linux/module.h> 14 #include <linux/pm.h> 15 #include <linux/regmap.h> 16 17 #include "bmi160.h" 18 19 static int bmi160_i2c_probe(struct i2c_client *client) 20 { 21 const struct i2c_device_id *id = i2c_client_get_device_id(client); 22 struct regmap *regmap; 23 const char *name; 24 25 regmap = devm_regmap_init_i2c(client, &bmi160_regmap_config); 26 if (IS_ERR(regmap)) { 27 dev_err(&client->dev, "Failed to register i2c regmap: %pe\n", 28 regmap); 29 return PTR_ERR(regmap); 30 } 31 32 if (id) 33 name = id->name; 34 else 35 name = dev_name(&client->dev); 36 37 return bmi160_core_probe(&client->dev, regmap, name, false); 38 } 39 40 static const struct i2c_device_id bmi160_i2c_id[] = { 41 { "bmi120" }, 42 { "bmi160" }, 43 { } 44 }; 45 MODULE_DEVICE_TABLE(i2c, bmi160_i2c_id); 46 47 static const struct acpi_device_id bmi160_acpi_match[] = { 48 /* 49 * FIRMWARE BUG WORKAROUND 50 * Some manufacturers like GPD, Lenovo or Aya used the incorrect 51 * ID "10EC5280" for bmi160 in their DSDT. A fixed firmware is not 52 * available as of Feb 2024 after trying to work with OEMs, and 53 * this is not expected to change anymore since at least some of 54 * the affected devices are from 2021/2022. 55 */ 56 {"10EC5280", 0}, 57 {"BMI0120", 0}, 58 {"BMI0160", 0}, 59 { } 60 }; 61 MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match); 62 63 static const struct of_device_id bmi160_of_match[] = { 64 { .compatible = "bosch,bmi120" }, 65 { .compatible = "bosch,bmi160" }, 66 { } 67 }; 68 MODULE_DEVICE_TABLE(of, bmi160_of_match); 69 70 static struct i2c_driver bmi160_i2c_driver = { 71 .driver = { 72 .name = "bmi160_i2c", 73 .pm = pm_ptr(&bmi160_core_pm_ops), 74 .acpi_match_table = bmi160_acpi_match, 75 .of_match_table = bmi160_of_match, 76 }, 77 .probe = bmi160_i2c_probe, 78 .id_table = bmi160_i2c_id, 79 }; 80 module_i2c_driver(bmi160_i2c_driver); 81 82 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>"); 83 MODULE_DESCRIPTION("BMI160 I2C driver"); 84 MODULE_LICENSE("GPL v2"); 85 MODULE_IMPORT_NS("IIO_BMI160"); 86