// 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/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,
                .volatile_reg   = adxl313_is_volatile_reg,
                .cache_type     = REGCACHE_MAPLE,
        },
        [ADXL313] = {
                .reg_bits       = 8,
                .val_bits       = 8,
                .rd_table       = &adxl313_readable_regs_table,
                .wr_table       = &adxl313_writable_regs_table,
                .max_register   = 0x39,
                .volatile_reg   = adxl313_is_volatile_reg,
                .cache_type     = REGCACHE_MAPLE,
        },
        [ADXL314] = {
                .reg_bits       = 8,
                .val_bits       = 8,
                .rd_table       = &adxl314_readable_regs_table,
                .wr_table       = &adxl314_writable_regs_table,
                .max_register   = 0x39,
                .volatile_reg   = adxl313_is_volatile_reg,
                .cache_type     = REGCACHE_MAPLE,
        },
};

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[ADXL313] },
        { .name = "adxl314", .driver_data = (kernel_ulong_t)&adxl31x_chip_info[ADXL314] },
        { }
};

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 device *dev = &client->dev;
        struct regmap *regmap;

        /*
         * Retrieves device specific data as a pointer to a
         * adxl313_chip_info structure
         */
        chip_data = i2c_get_match_data(client);

        regmap = devm_regmap_init_i2c(client,
                                      &adxl31x_i2c_regmap_config[chip_data->type]);
        if (IS_ERR(regmap))
                return dev_err_probe(dev, PTR_ERR(regmap), "Error initializing i2c regmap\n");

        return adxl313_core_probe(dev, regmap, chip_data, NULL);
}

static struct i2c_driver adxl313_i2c_driver = {
        .driver = {
                .name   = "adxl313_i2c",
                .of_match_table = adxl313_of_match,
        },
        .probe          = 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");