// SPDX-License-Identifier: GPL-2.0-only
/*
 * This is a simple driver for the GTM601 Voice PCM interface
 *
 * Copyright (C) 2015 Goldelico GmbH
 *
 * Author: Marek Belisko <marek@goldelico.com>
 *
 * Based on wm8727.c driver
 */

#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/of.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#include <sound/soc.h>

static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = {
        SND_SOC_DAPM_OUTPUT("AOUT"),
        SND_SOC_DAPM_INPUT("AIN"),
};

static const struct snd_soc_dapm_route gtm601_dapm_routes[] = {
        { "AOUT", NULL, "Playback" },
        { "Capture", NULL, "AIN" },
};

static struct snd_soc_dai_driver gtm601_dai = {
        .name = "gtm601",
        .playback = {
                .stream_name = "Playback",
                .channels_min = 1,
                .channels_max = 1,
                .rates = SNDRV_PCM_RATE_8000,
                .formats = SNDRV_PCM_FMTBIT_S16_LE,
                },
        .capture = {
                .stream_name = "Capture",
                .channels_min = 1,
                .channels_max = 1,
                .rates = SNDRV_PCM_RATE_8000,
                .formats = SNDRV_PCM_FMTBIT_S16_LE,
        },
};

static struct snd_soc_dai_driver bm818_dai = {
        .name = "bm818",
        .playback = {
                .stream_name = "Playback",
                .channels_min = 2,
                .channels_max = 2,
                .rates = SNDRV_PCM_RATE_48000,
                .formats = SNDRV_PCM_FMTBIT_S16_LE,
        },
        .capture = {
                .stream_name = "Capture",
                .channels_min = 2,
                .channels_max = 2,
                .rates = SNDRV_PCM_RATE_48000,
                .formats = SNDRV_PCM_FMTBIT_S16_LE,
        },
};

static const struct snd_soc_component_driver soc_component_dev_gtm601 = {
        .dapm_widgets           = gtm601_dapm_widgets,
        .num_dapm_widgets       = ARRAY_SIZE(gtm601_dapm_widgets),
        .dapm_routes            = gtm601_dapm_routes,
        .num_dapm_routes        = ARRAY_SIZE(gtm601_dapm_routes),
        .idle_bias_on           = 1,
        .use_pmdown_time        = 1,
        .endianness             = 1,
};

static int gtm601_platform_probe(struct platform_device *pdev)
{
        const struct snd_soc_dai_driver *dai_driver;

        dai_driver = of_device_get_match_data(&pdev->dev);

        return devm_snd_soc_register_component(&pdev->dev,
                        &soc_component_dev_gtm601,
                        (struct snd_soc_dai_driver *)dai_driver, 1);
}

static const struct of_device_id gtm601_codec_of_match[] __maybe_unused = {
        { .compatible = "option,gtm601", .data = (void *)&gtm601_dai },
        { .compatible = "broadmobi,bm818", .data = (void *)&bm818_dai },
        {},
};
MODULE_DEVICE_TABLE(of, gtm601_codec_of_match);

static struct platform_driver gtm601_codec_driver = {
        .driver = {
                .name = "gtm601",
                .of_match_table = of_match_ptr(gtm601_codec_of_match),
        },
        .probe = gtm601_platform_probe,
};

module_platform_driver(gtm601_codec_driver);

MODULE_DESCRIPTION("ASoC gtm601 driver");
MODULE_AUTHOR("Marek Belisko <marek@goldelico.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:gtm601");