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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * ADXL313 3-Axis Digital Accelerometer4 *5 * Copyright (c) 2021 Lucas Stankus <lucas.p.stankus@gmail.com>6 *7 * Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL313.pdf8 */9 10#include <linux/i2c.h>11#include <linux/mod_devicetable.h>12#include <linux/module.h>13#include <linux/regmap.h>14 15#include "adxl313.h"16 17static const struct regmap_config adxl31x_i2c_regmap_config[] = {18 [ADXL312] = {19 .reg_bits = 8,20 .val_bits = 8,21 .rd_table = &adxl312_readable_regs_table,22 .wr_table = &adxl312_writable_regs_table,23 .max_register = 0x39,24 },25 [ADXL313] = {26 .reg_bits = 8,27 .val_bits = 8,28 .rd_table = &adxl313_readable_regs_table,29 .wr_table = &adxl313_writable_regs_table,30 .max_register = 0x39,31 },32 [ADXL314] = {33 .reg_bits = 8,34 .val_bits = 8,35 .rd_table = &adxl314_readable_regs_table,36 .wr_table = &adxl314_writable_regs_table,37 .max_register = 0x39,38 },39};40 41static const struct i2c_device_id adxl313_i2c_id[] = {42 { .name = "adxl312", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL312] },43 { .name = "adxl313", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL313] },44 { .name = "adxl314", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL314] },45 { }46};47 48MODULE_DEVICE_TABLE(i2c, adxl313_i2c_id);49 50static const struct of_device_id adxl313_of_match[] = {51 { .compatible = "adi,adxl312", .data = &adxl31x_chip_info[ADXL312] },52 { .compatible = "adi,adxl313", .data = &adxl31x_chip_info[ADXL313] },53 { .compatible = "adi,adxl314", .data = &adxl31x_chip_info[ADXL314] },54 { }55};56 57MODULE_DEVICE_TABLE(of, adxl313_of_match);58 59static int adxl313_i2c_probe(struct i2c_client *client)60{61 const struct adxl313_chip_info *chip_data;62 struct regmap *regmap;63 64 /*65 * Retrieves device specific data as a pointer to a66 * adxl313_chip_info structure67 */68 chip_data = i2c_get_match_data(client);69 70 regmap = devm_regmap_init_i2c(client,71 &adxl31x_i2c_regmap_config[chip_data->type]);72 if (IS_ERR(regmap)) {73 dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",74 PTR_ERR(regmap));75 return PTR_ERR(regmap);76 }77 78 return adxl313_core_probe(&client->dev, regmap, chip_data, NULL);79}80 81static struct i2c_driver adxl313_i2c_driver = {82 .driver = {83 .name = "adxl313_i2c",84 .of_match_table = adxl313_of_match,85 },86 .probe = adxl313_i2c_probe,87 .id_table = adxl313_i2c_id,88};89 90module_i2c_driver(adxl313_i2c_driver);91 92MODULE_AUTHOR("Lucas Stankus <lucas.p.stankus@gmail.com>");93MODULE_DESCRIPTION("ADXL313 3-Axis Digital Accelerometer I2C driver");94MODULE_LICENSE("GPL v2");95MODULE_IMPORT_NS(IIO_ADXL313);96