// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) ST-Ericsson SA 2012
 *
 * Author: Ola Lilja (ola.o.lilja@stericsson.com)
 *         for ST-Ericsson.
 */

#include <asm/mach-types.h>

#include <linux/module.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/of.h>

#include <sound/soc.h>
#include <sound/initval.h>

#include "ux500_pcm.h"
#include "ux500_msp_dai.h"

#include "mop500_ab8500.h"

/* Define the whole MOP500 soundcard, linking platform to the codec-drivers  */
SND_SOC_DAILINK_DEFS(link1,
        DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.1")),
        DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0", "ab8500-codec-dai.0")),
        DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.1")));

SND_SOC_DAILINK_DEFS(link2,
        DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.3")),
        DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0", "ab8500-codec-dai.1")),
        DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.3")));

static struct snd_soc_dai_link mop500_dai_links[] = {
        {
                .name = "ab8500_0",
                .stream_name = "ab8500_0",
                .init = mop500_ab8500_machine_init,
                .ops = mop500_ab8500_ops,
                SND_SOC_DAILINK_REG(link1),
        },
        {
                .name = "ab8500_1",
                .stream_name = "ab8500_1",
                .init = NULL,
                .ops = mop500_ab8500_ops,
                SND_SOC_DAILINK_REG(link2),
        },
};

static struct snd_soc_card mop500_card = {
        .name = "MOP500-card",
        .owner = THIS_MODULE,
        .probe = NULL,
        .dai_link = mop500_dai_links,
        .num_links = ARRAY_SIZE(mop500_dai_links),
};

static void mop500_of_node_put(void)
{
        int i;

        for (i = 0; i < 2; i++)
                of_node_put(mop500_dai_links[i].cpus->of_node);

        /* Both links use the same codec, which is refcounted only once */
        of_node_put(mop500_dai_links[0].codecs->of_node);
}

static int mop500_of_probe(struct platform_device *pdev,
                           struct device_node *np)
{
        struct device_node *codec_np, *msp_np[2];
        int i;

        msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0);
        msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1);
        codec_np  = of_parse_phandle(np, "stericsson,audio-codec", 0);

        if (!(msp_np[0] && msp_np[1] && codec_np)) {
                dev_err(&pdev->dev, "Phandle missing or invalid\n");
                for (i = 0; i < 2; i++)
                        of_node_put(msp_np[i]);
                of_node_put(codec_np);
                return -EINVAL;
        }

        for (i = 0; i < 2; i++) {
                mop500_dai_links[i].cpus->of_node = msp_np[i];
                mop500_dai_links[i].cpus->dai_name = NULL;
                mop500_dai_links[i].platforms->of_node = msp_np[i];
                mop500_dai_links[i].platforms->name = NULL;
                mop500_dai_links[i].codecs->of_node = codec_np;
                mop500_dai_links[i].codecs->name = NULL;
        }

        snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name");

        return 0;
}

static int mop500_probe(struct platform_device *pdev)
{
        struct device_node *np = pdev->dev.of_node;
        int ret;

        dev_dbg(&pdev->dev, "%s: Enter.\n", __func__);

        mop500_card.dev = &pdev->dev;

        ret = mop500_of_probe(pdev, np);
        if (ret)
                return ret;

        dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n",
                __func__, mop500_card.name);

        snd_soc_card_set_drvdata(&mop500_card, NULL);

        dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n",
                __func__, mop500_card.name, mop500_card.num_links);
        dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n",
                __func__, mop500_card.name, mop500_card.dai_link[0].name);
        dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n",
                __func__, mop500_card.name,
                mop500_card.dai_link[0].stream_name);

        ret = snd_soc_register_card(&mop500_card);
        if (ret)
                dev_err(&pdev->dev,
                        "Error: snd_soc_register_card failed (%d)!\n", ret);

        return ret;
}

static void mop500_remove(struct platform_device *pdev)
{
        struct snd_soc_card *card = platform_get_drvdata(pdev);

        pr_debug("%s: Enter.\n", __func__);

        snd_soc_unregister_card(card);
        mop500_ab8500_remove(card);
        mop500_of_node_put();
}

static const struct of_device_id snd_soc_mop500_match[] = {
        { .compatible = "stericsson,snd-soc-mop500", },
        {},
};
MODULE_DEVICE_TABLE(of, snd_soc_mop500_match);

static struct platform_driver snd_soc_mop500_driver = {
        .driver = {
                .name = "snd-soc-mop500",
                .of_match_table = snd_soc_mop500_match,
        },
        .probe = mop500_probe,
        .remove = mop500_remove,
};

module_platform_driver(snd_soc_mop500_driver);

MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("ASoC MOP500 board driver");
MODULE_AUTHOR("Ola Lilja");