Eva Rachel Retuya | 5170512 | 2017-03-04 16:31:25 +0800 | [diff] [blame] | 1 | /* |
| 2 | * ADXL345 3-Axis Digital Accelerometer I2C driver |
| 3 | * |
| 4 | * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> |
| 5 | * |
| 6 | * This file is subject to the terms and conditions of version 2 of |
| 7 | * the GNU General Public License. See the file COPYING in the main |
| 8 | * directory of this archive for more details. |
| 9 | * |
| 10 | * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or |
| 11 | * 0x53 (ALT ADDRESS pin grounded) |
| 12 | */ |
| 13 | |
| 14 | #include <linux/i2c.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/regmap.h> |
| 17 | |
| 18 | #include "adxl345.h" |
| 19 | |
| 20 | static const struct regmap_config adxl345_i2c_regmap_config = { |
| 21 | .reg_bits = 8, |
| 22 | .val_bits = 8, |
| 23 | }; |
| 24 | |
| 25 | static int adxl345_i2c_probe(struct i2c_client *client, |
| 26 | const struct i2c_device_id *id) |
| 27 | { |
| 28 | struct regmap *regmap; |
| 29 | |
| 30 | regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config); |
| 31 | if (IS_ERR(regmap)) { |
| 32 | dev_err(&client->dev, "Error initializing i2c regmap: %ld\n", |
| 33 | PTR_ERR(regmap)); |
| 34 | return PTR_ERR(regmap); |
| 35 | } |
| 36 | |
| 37 | return adxl345_core_probe(&client->dev, regmap, id ? id->name : NULL); |
| 38 | } |
| 39 | |
| 40 | static int adxl345_i2c_remove(struct i2c_client *client) |
| 41 | { |
| 42 | return adxl345_core_remove(&client->dev); |
| 43 | } |
| 44 | |
| 45 | static const struct i2c_device_id adxl345_i2c_id[] = { |
| 46 | { "adxl345", 0 }, |
| 47 | { } |
| 48 | }; |
| 49 | |
| 50 | MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id); |
| 51 | |
| 52 | static const struct of_device_id adxl345_of_match[] = { |
| 53 | { .compatible = "adi,adxl345" }, |
| 54 | { }, |
| 55 | }; |
| 56 | |
| 57 | MODULE_DEVICE_TABLE(of, adxl345_of_match); |
| 58 | |
| 59 | static struct i2c_driver adxl345_i2c_driver = { |
| 60 | .driver = { |
| 61 | .name = "adxl345_i2c", |
| 62 | .of_match_table = adxl345_of_match, |
| 63 | }, |
| 64 | .probe = adxl345_i2c_probe, |
| 65 | .remove = adxl345_i2c_remove, |
| 66 | .id_table = adxl345_i2c_id, |
| 67 | }; |
| 68 | |
| 69 | module_i2c_driver(adxl345_i2c_driver); |
| 70 | |
| 71 | MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>"); |
| 72 | MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver"); |
| 73 | MODULE_LICENSE("GPL v2"); |