// SPDX-License-Identifier: GPL-2.0-only
/*
 * RSB driver for the X-Powers' Power Management ICs
 *
 * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
 * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
 * as well as configurable GPIOs.
 *
 * This driver supports the RSB variants.
 *
 * Copyright (C) 2015 Chen-Yu Tsai
 *
 * Author: Chen-Yu Tsai <wens@csie.org>
 */

#include <linux/acpi.h>
#include <linux/err.h>
#include <linux/mfd/axp20x.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/sunxi-rsb.h>

static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev)
{
        struct axp20x_dev *axp20x;
        int ret;

        axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL);
        if (!axp20x)
                return -ENOMEM;

        axp20x->dev = &rdev->dev;
        axp20x->irq = rdev->irq;
        dev_set_drvdata(&rdev->dev, axp20x);

        ret = axp20x_match_device(axp20x);
        if (ret)
                return ret;

        axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg);
        if (IS_ERR(axp20x->regmap)) {
                ret = PTR_ERR(axp20x->regmap);
                dev_err(&rdev->dev, "regmap init failed: %d\n", ret);
                return ret;
        }

        return axp20x_device_probe(axp20x);
}

static void axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
{
        struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev);

        axp20x_device_remove(axp20x);
}

static const struct of_device_id axp20x_rsb_of_match[] = {
        { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
        { .compatible = "x-powers,axp717", .data = (void *)AXP717_ID },
        { .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
        { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
        { .compatible = "x-powers,axp809", .data = (void *)AXP809_ID },
        { .compatible = "x-powers,axp813", .data = (void *)AXP813_ID },
        { },
};
MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match);

static struct sunxi_rsb_driver axp20x_rsb_driver = {
        .driver = {
                .name   = "axp20x-rsb",
                .of_match_table = of_match_ptr(axp20x_rsb_of_match),
        },
        .probe  = axp20x_rsb_probe,
        .remove = axp20x_rsb_remove,
};
module_sunxi_rsb_driver(axp20x_rsb_driver);

MODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X");
MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
MODULE_LICENSE("GPL v2");