1 /* 2 * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips: 3 * - BMC150 4 * - BMC156 5 * - BMM150 6 * 7 * Copyright (c) 2016, Intel Corporation. 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms and conditions of the GNU General Public License, 11 * version 2, as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope it will be useful, but WITHOUT 14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 16 * more details. 17 */ 18 #include <linux/device.h> 19 #include <linux/mod_devicetable.h> 20 #include <linux/i2c.h> 21 #include <linux/module.h> 22 #include <linux/acpi.h> 23 #include <linux/regmap.h> 24 25 #include "bmc150_magn.h" 26 27 static int bmc150_magn_i2c_probe(struct i2c_client *client, 28 const struct i2c_device_id *id) 29 { 30 struct regmap *regmap; 31 const char *name = NULL; 32 33 regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config); 34 if (IS_ERR(regmap)) { 35 dev_err(&client->dev, "Failed to initialize i2c regmap\n"); 36 return PTR_ERR(regmap); 37 } 38 39 if (id) 40 name = id->name; 41 42 return bmc150_magn_probe(&client->dev, regmap, client->irq, name); 43 } 44 45 static int bmc150_magn_i2c_remove(struct i2c_client *client) 46 { 47 return bmc150_magn_remove(&client->dev); 48 } 49 50 static const struct acpi_device_id bmc150_magn_acpi_match[] = { 51 {"BMC150B", 0}, 52 {"BMC156B", 0}, 53 {"BMM150B", 0}, 54 {}, 55 }; 56 MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match); 57 58 static const struct i2c_device_id bmc150_magn_i2c_id[] = { 59 {"bmc150_magn", 0}, 60 {"bmc156_magn", 0}, 61 {"bmm150_magn", 0}, 62 {} 63 }; 64 MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id); 65 66 static const struct of_device_id bmc150_magn_of_match[] = { 67 { .compatible = "bosch,bmc150_magn" }, 68 { .compatible = "bosch,bmc156_magn" }, 69 { .compatible = "bosch,bmm150_magn" }, 70 { } 71 }; 72 MODULE_DEVICE_TABLE(of, bmc150_magn_of_match); 73 74 static struct i2c_driver bmc150_magn_driver = { 75 .driver = { 76 .name = "bmc150_magn_i2c", 77 .of_match_table = bmc150_magn_of_match, 78 .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match), 79 .pm = &bmc150_magn_pm_ops, 80 }, 81 .probe = bmc150_magn_i2c_probe, 82 .remove = bmc150_magn_i2c_remove, 83 .id_table = bmc150_magn_i2c_id, 84 }; 85 module_i2c_driver(bmc150_magn_driver); 86 87 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com"); 88 MODULE_LICENSE("GPL v2"); 89 MODULE_DESCRIPTION("BMC150 I2C magnetometer driver"); 90