// SPDX-License-Identifier: GPL-2.0-only /* * ADXL313 3-Axis Digital Accelerometer * * Copyright (c) 2021 Lucas Stankus <lucas.p.stankus@gmail.com> * * Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL313.pdf */ #include <linux/i2c.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/regmap.h> #include "adxl313.h" static const struct regmap_config adxl31x_i2c_regmap_config[] = { [ADXL312] = { .reg_bits = 8, .val_bits = 8, .rd_table = &adxl312_readable_regs_table, .wr_table = &adxl312_writable_regs_table, .max_register = 0x39, }, [ADXL313] = { .reg_bits = 8, .val_bits = 8, .rd_table = &adxl313_readable_regs_table, .wr_table = &adxl313_writable_regs_table, .max_register = 0x39, }, [ADXL314] = { .reg_bits = 8, .val_bits = 8, .rd_table = &adxl314_readable_regs_table, .wr_table = &adxl314_writable_regs_table, .max_register = 0x39, }, }; static const struct i2c_device_id adxl313_i2c_id[] = { { .name = "adxl312", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL312] }, { .name = "adxl313", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL312] }, { .name = "adxl314", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL312] }, { } }; MODULE_DEVICE_TABLE(i2c, adxl313_i2c_id); static const struct of_device_id adxl313_of_match[] = { { .compatible = "adi,adxl312", .data = &adxl31x_chip_info[ADXL312] }, { .compatible = "adi,adxl313", .data = &adxl31x_chip_info[ADXL313] }, { .compatible = "adi,adxl314", .data = &adxl31x_chip_info[ADXL314] }, { } }; MODULE_DEVICE_TABLE(of, adxl313_of_match); static int adxl313_i2c_probe(struct i2c_client *client) { const struct adxl313_chip_info *chip_data; struct regmap *regmap; /* * Retrieves device specific data as a pointer to a * adxl313_chip_info structure */ chip_data = device_get_match_data(&client->dev); if (!chip_data) chip_data = (const struct adxl313_chip_info *)i2c_match_id(adxl313_i2c_id, client)->driver_data; regmap = devm_regmap_init_i2c(client, &adxl31x_i2c_regmap_config[chip_data->type]); if (IS_ERR(regmap)) { dev_err(&client->dev, "Error initializing i2c regmap: %ld\n", PTR_ERR(regmap)); return PTR_ERR(regmap); } return adxl313_core_probe(&client->dev, regmap, chip_data, NULL); } static struct i2c_driver adxl313_i2c_driver = { .driver = { .name = "adxl313_i2c", .of_match_table = adxl313_of_match, }, .probe_new = adxl313_i2c_probe, .id_table = adxl313_i2c_id, }; module_i2c_driver(adxl313_i2c_driver); MODULE_AUTHOR("Lucas Stankus <lucas.p.stankus@gmail.com>"); MODULE_DESCRIPTION("ADXL313 3-Axis Digital Accelerometer I2C driver"); MODULE_LICENSE("GPL v2"); MODULE_IMPORT_NS(IIO_ADXL313);