// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Marvell Armada ap806 pinctrl driver based on mvebu pinctrl core
 *
 * Copyright (C) 2017 Marvell
 *
 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 * Hanna Hawa <hannah@marvell.com>
 */

#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/pinctrl/pinctrl.h>

#include "pinctrl-mvebu.h"

static struct mvebu_mpp_mode armada_ap806_mpp_modes[] = {
        MPP_MODE(0,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "clk"),
                 MPP_FUNCTION(3, "spi0",    "clk")),
        MPP_MODE(1,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "cmd"),
                 MPP_FUNCTION(3, "spi0",    "miso")),
        MPP_MODE(2,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d0"),
                 MPP_FUNCTION(3, "spi0",    "mosi")),
        MPP_MODE(3,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d1"),
                 MPP_FUNCTION(3, "spi0",    "cs0n")),
        MPP_MODE(4,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d2"),
                 MPP_FUNCTION(3, "i2c0",    "sda")),
        MPP_MODE(5,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d3"),
                 MPP_FUNCTION(3, "i2c0",    "sdk")),
        MPP_MODE(6,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "ds")),
        MPP_MODE(7,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d4"),
                 MPP_FUNCTION(3, "uart1",   "rxd")),
        MPP_MODE(8,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d5"),
                 MPP_FUNCTION(3, "uart1",   "txd")),
        MPP_MODE(9,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d6"),
                 MPP_FUNCTION(3, "spi0",    "cs1n")),
        MPP_MODE(10,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "d7")),
        MPP_MODE(11,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(3, "uart0",   "txd")),
        MPP_MODE(12,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(1, "sdio",    "pw_off"),
                 MPP_FUNCTION(2, "sdio",    "hw_rst")),
        MPP_MODE(13,
                 MPP_FUNCTION(0, "gpio",    NULL)),
        MPP_MODE(14,
                 MPP_FUNCTION(0, "gpio",    NULL)),
        MPP_MODE(15,
                 MPP_FUNCTION(0, "gpio",    NULL)),
        MPP_MODE(16,
                 MPP_FUNCTION(0, "gpio",    NULL)),
        MPP_MODE(17,
                 MPP_FUNCTION(0, "gpio",    NULL)),
        MPP_MODE(18,
                 MPP_FUNCTION(0, "gpio",    NULL)),
        MPP_MODE(19,
                 MPP_FUNCTION(0, "gpio",    NULL),
                 MPP_FUNCTION(3, "uart0",   "rxd"),
                 MPP_FUNCTION(4, "sdio",    "pw_off")),
};

static struct mvebu_pinctrl_soc_info armada_ap806_pinctrl_info;

static const struct of_device_id armada_ap806_pinctrl_of_match[] = {
        {
                .compatible = "marvell,ap806-pinctrl",
        },
        { },
};

static const struct mvebu_mpp_ctrl armada_ap806_mpp_controls[] = {
        MPP_FUNC_CTRL(0, 19, NULL, mvebu_regmap_mpp_ctrl),
};

static struct pinctrl_gpio_range armada_ap806_mpp_gpio_ranges[] = {
        MPP_GPIO_RANGE(0,   0,  0, 20),
};

static int armada_ap806_pinctrl_probe(struct platform_device *pdev)
{
        struct mvebu_pinctrl_soc_info *soc = &armada_ap806_pinctrl_info;

        if (!pdev->dev.parent)
                return -ENODEV;

        soc->variant = 0; /* no variants for Armada AP806 */
        soc->controls = armada_ap806_mpp_controls;
        soc->ncontrols = ARRAY_SIZE(armada_ap806_mpp_controls);
        soc->gpioranges = armada_ap806_mpp_gpio_ranges;
        soc->ngpioranges = ARRAY_SIZE(armada_ap806_mpp_gpio_ranges);
        soc->modes = armada_ap806_mpp_modes;
        soc->nmodes = armada_ap806_mpp_controls[0].npins;

        pdev->dev.platform_data = soc;

        return mvebu_pinctrl_simple_regmap_probe(pdev, pdev->dev.parent, 0);
}

static struct platform_driver armada_ap806_pinctrl_driver = {
        .driver = {
                .name = "armada-ap806-pinctrl",
                .of_match_table = of_match_ptr(armada_ap806_pinctrl_of_match),
        },
        .probe = armada_ap806_pinctrl_probe,
};

builtin_platform_driver(armada_ap806_pinctrl_driver);