// SPDX-License-Identifier: GPL-2.0
//
// Phytec pcm030 driver for the PSC of the Freescale MPC52xx
// configured as AC97 interface
//
// Copyright 2008 Jon Smirl, Digispeaker
// Author: Jon Smirl <jonsmirl@gmail.com>

#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/of.h>

#include <sound/soc.h>

#include "mpc5200_dma.h"

#define DRV_NAME "pcm030-audio-fabric"

struct pcm030_audio_data {
        struct snd_soc_card *card;
        struct platform_device *codec_device;
};

SND_SOC_DAILINK_DEFS(analog,
        DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
        DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
        DAILINK_COMP_ARRAY(COMP_EMPTY()));

SND_SOC_DAILINK_DEFS(iec958,
        DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
        DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
        DAILINK_COMP_ARRAY(COMP_EMPTY()));

static struct snd_soc_dai_link pcm030_fabric_dai[] = {
{
        .name = "AC97.0",
        .stream_name = "AC97 Analog",
        SND_SOC_DAILINK_REG(analog),
},
{
        .name = "AC97.1",
        .stream_name = "AC97 IEC958",
        SND_SOC_DAILINK_REG(iec958),
},
};

static struct snd_soc_card pcm030_card = {
        .name = "pcm030",
        .owner = THIS_MODULE,
        .dai_link = pcm030_fabric_dai,
        .num_links = ARRAY_SIZE(pcm030_fabric_dai),
};

static int pcm030_fabric_probe(struct platform_device *op)
{
        struct device_node *np = op->dev.of_node;
        struct device_node *platform_np;
        struct snd_soc_card *card = &pcm030_card;
        struct pcm030_audio_data *pdata;
        struct snd_soc_dai_link *dai_link;
        int ret;
        int i;

        if (!of_machine_is_compatible("phytec,pcm030"))
                return -ENODEV;

        pdata = devm_kzalloc(&op->dev, sizeof(struct pcm030_audio_data),
                             GFP_KERNEL);
        if (!pdata)
                return -ENOMEM;

        card->dev = &op->dev;

        pdata->card = card;

        platform_np = of_parse_phandle(np, "asoc-platform", 0);
        if (!platform_np) {
                dev_err(&op->dev, "ac97 not registered\n");
                return -ENODEV;
        }

        for_each_card_prelinks(card, i, dai_link)
                dai_link->platforms->of_node = platform_np;

        ret = request_module("snd-soc-wm9712");
        if (ret)
                dev_err(&op->dev, "request_module returned: %d\n", ret);

        pdata->codec_device = platform_device_alloc("wm9712-codec", -1);
        if (!pdata->codec_device)
                dev_err(&op->dev, "platform_device_alloc() failed\n");

        ret = platform_device_add(pdata->codec_device);
        if (ret) {
                dev_err(&op->dev, "platform_device_add() failed: %d\n", ret);
                platform_device_put(pdata->codec_device);
        }

        ret = snd_soc_register_card(card);
        if (ret) {
                dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret);
                platform_device_unregister(pdata->codec_device);
        }

        platform_set_drvdata(op, pdata);
        return ret;

}

static void pcm030_fabric_remove(struct platform_device *op)
{
        struct pcm030_audio_data *pdata = platform_get_drvdata(op);

        snd_soc_unregister_card(pdata->card);
        platform_device_unregister(pdata->codec_device);
}

static const struct of_device_id pcm030_audio_match[] = {
        { .compatible = "phytec,pcm030-audio-fabric", },
        {}
};
MODULE_DEVICE_TABLE(of, pcm030_audio_match);

static struct platform_driver pcm030_fabric_driver = {
        .probe          = pcm030_fabric_probe,
        .remove         = pcm030_fabric_remove,
        .driver         = {
                .name   = DRV_NAME,
                .of_match_table    = pcm030_audio_match,
        },
};

module_platform_driver(pcm030_fabric_driver);


MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
MODULE_DESCRIPTION(DRV_NAME ": mpc5200 pcm030 fabric driver");
MODULE_LICENSE("GPL");