1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * ADXL345 3-Axis Digital Accelerometer I2C driver 4 * 5 * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> 6 * 7 * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or 8 * 0x53 (ALT ADDRESS pin grounded) 9 */ 10 11 #include <linux/i2c.h> 12 #include <linux/module.h> 13 #include <linux/regmap.h> 14 15 #include "adxl345.h" 16 17 static const struct regmap_config adxl345_i2c_regmap_config = { 18 .reg_bits = 8, 19 .val_bits = 8, 20 }; 21 22 static int adxl345_i2c_probe(struct i2c_client *client) 23 { 24 struct regmap *regmap; 25 26 regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config); 27 if (IS_ERR(regmap)) 28 return dev_err_probe(&client->dev, PTR_ERR(regmap), "Error initializing regmap\n"); 29 30 return adxl345_core_probe(&client->dev, regmap); 31 } 32 33 static const struct i2c_device_id adxl345_i2c_id[] = { 34 { "adxl345", ADXL345 }, 35 { "adxl375", ADXL375 }, 36 { } 37 }; 38 MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id); 39 40 static const struct of_device_id adxl345_of_match[] = { 41 { .compatible = "adi,adxl345", .data = (const void *)ADXL345 }, 42 { .compatible = "adi,adxl375", .data = (const void *)ADXL375 }, 43 { } 44 }; 45 MODULE_DEVICE_TABLE(of, adxl345_of_match); 46 47 static const struct acpi_device_id adxl345_acpi_match[] = { 48 { "ADS0345", ADXL345 }, 49 { } 50 }; 51 MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match); 52 53 static struct i2c_driver adxl345_i2c_driver = { 54 .driver = { 55 .name = "adxl345_i2c", 56 .of_match_table = adxl345_of_match, 57 .acpi_match_table = adxl345_acpi_match, 58 }, 59 .probe_new = adxl345_i2c_probe, 60 .id_table = adxl345_i2c_id, 61 }; 62 module_i2c_driver(adxl345_i2c_driver); 63 64 MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>"); 65 MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver"); 66 MODULE_LICENSE("GPL v2"); 67 MODULE_IMPORT_NS(IIO_ADXL345); 68