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