// SPDX-License-Identifier: GPL-2.0
/*
 * mt7986-wm8960.c  --  MT7986-WM8960 ALSA SoC machine driver
 *
 * Copyright (c) 2023 MediaTek Inc.
 * Authors: Vic Wu <vic.wu@mediatek.com>
 *          Maso Huang <maso.huang@mediatek.com>
 */

#include <linux/module.h>
#include <sound/soc.h>

#include "mt7986-afe-common.h"

static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {
        SND_SOC_DAPM_HP("Headphone", NULL),
        SND_SOC_DAPM_MIC("AMIC", NULL),
};

static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {
        SOC_DAPM_PIN_SWITCH("Headphone"),
        SOC_DAPM_PIN_SWITCH("AMIC"),
};

SND_SOC_DAILINK_DEFS(playback,
        DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
        DAILINK_COMP_ARRAY(COMP_DUMMY()),
        DAILINK_COMP_ARRAY(COMP_EMPTY()));

SND_SOC_DAILINK_DEFS(capture,
        DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
        DAILINK_COMP_ARRAY(COMP_DUMMY()),
        DAILINK_COMP_ARRAY(COMP_EMPTY()));

SND_SOC_DAILINK_DEFS(codec,
        DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),
        DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),
        DAILINK_COMP_ARRAY(COMP_EMPTY()));

static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {
        /* FE */
        {
                .name = "wm8960-playback",
                .stream_name = "wm8960-playback",
                .trigger = {SND_SOC_DPCM_TRIGGER_POST,
                            SND_SOC_DPCM_TRIGGER_POST},
                .dynamic = 1,
                .playback_only = 1,
                SND_SOC_DAILINK_REG(playback),
        },
        {
                .name = "wm8960-capture",
                .stream_name = "wm8960-capture",
                .trigger = {SND_SOC_DPCM_TRIGGER_POST,
                            SND_SOC_DPCM_TRIGGER_POST},
                .dynamic = 1,
                .capture_only = 1,
                SND_SOC_DAILINK_REG(capture),
        },
        /* BE */
        {
                .name = "wm8960-codec",
                .no_pcm = 1,
                .dai_fmt = SND_SOC_DAIFMT_I2S |
                        SND_SOC_DAIFMT_NB_NF |
                        SND_SOC_DAIFMT_CBC_CFC |
                        SND_SOC_DAIFMT_GATED,
                SND_SOC_DAILINK_REG(codec),
        },
};

static struct snd_soc_card mt7986_wm8960_card = {
        .name = "mt7986-wm8960",
        .owner = THIS_MODULE,
        .dai_link = mt7986_wm8960_dai_links,
        .num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),
        .controls = mt7986_wm8960_controls,
        .num_controls = ARRAY_SIZE(mt7986_wm8960_controls),
        .dapm_widgets = mt7986_wm8960_widgets,
        .num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),
};

static int mt7986_wm8960_machine_probe(struct platform_device *pdev)
{
        struct snd_soc_card *card = &mt7986_wm8960_card;
        struct snd_soc_dai_link *dai_link;
        struct device_node *platform, *codec;
        struct device_node *platform_dai_node, *codec_dai_node;
        int ret, i;

        card->dev = &pdev->dev;

        platform = of_get_child_by_name(pdev->dev.of_node, "platform");

        if (platform) {
                platform_dai_node = of_parse_phandle(platform, "sound-dai", 0);
                of_node_put(platform);

                if (!platform_dai_node) {
                        dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");
                        return -EINVAL;
                }
        } else {
                dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
                return -EINVAL;
        }

        for_each_card_prelinks(card, i, dai_link) {
                if (dai_link->platforms->name)
                        continue;
                dai_link->platforms->of_node = platform_dai_node;
        }

        codec = of_get_child_by_name(pdev->dev.of_node, "codec");

        if (codec) {
                codec_dai_node = of_parse_phandle(codec, "sound-dai", 0);
                of_node_put(codec);

                if (!codec_dai_node) {
                        of_node_put(platform_dai_node);
                        dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
                        return -EINVAL;
                }
        } else {
                of_node_put(platform_dai_node);
                dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");
                return -EINVAL;
        }

        for_each_card_prelinks(card, i, dai_link) {
                if (dai_link->codecs->name)
                        continue;
                dai_link->codecs->of_node = codec_dai_node;
        }

        ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
        if (ret) {
                dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);
                goto err_of_node_put;
        }

        ret = devm_snd_soc_register_card(&pdev->dev, card);
        if (ret) {
                dev_err_probe(&pdev->dev, ret, "%s snd_soc_register_card fail\n", __func__);
                goto err_of_node_put;
        }

err_of_node_put:
        of_node_put(platform_dai_node);
        of_node_put(codec_dai_node);
        return ret;
}

static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {
        {.compatible = "mediatek,mt7986-wm8960-sound"},
        { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);

static struct platform_driver mt7986_wm8960_machine = {
        .driver = {
                .name = "mt7986-wm8960",
                .of_match_table = mt7986_wm8960_machine_dt_match,
        },
        .probe = mt7986_wm8960_machine_probe,
};

module_platform_driver(mt7986_wm8960_machine);

/* Module information */
MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");
MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("mt7986 wm8960 soc card");