linux/sound/soc/mediatek/mt6797/mt6797-mt6351.c

// SPDX-License-Identifier: GPL-2.0
//
// mt6797-mt6351.c  --  MT6797 MT6351 ALSA SoC machine driver
//
// Copyright (c) 2018 MediaTek Inc.
// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>

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

#include "mt6797-afe-common.h"

static struct snd_soc_dai_link mt6797_mt6351_dai_links[] = {
	/* FE */
	{
		.name = "Playback_1",
		.stream_name = "Playback_1",
		.cpu_dai_name = "DL1",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
			    SND_SOC_DPCM_TRIGGER_PRE},
		.dynamic = 1,
		.dpcm_playback = 1,
	},
	{
		.name = "Playback_2",
		.stream_name = "Playback_2",
		.cpu_dai_name = "DL2",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
			    SND_SOC_DPCM_TRIGGER_PRE},
		.dynamic = 1,
		.dpcm_playback = 1,
	},
	{
		.name = "Playback_3",
		.stream_name = "Playback_3",
		.cpu_dai_name = "DL3",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
			    SND_SOC_DPCM_TRIGGER_PRE},
		.dynamic = 1,
		.dpcm_playback = 1,
	},
	{
		.name = "Capture_1",
		.stream_name = "Capture_1",
		.cpu_dai_name = "UL1",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
			    SND_SOC_DPCM_TRIGGER_PRE},
		.dynamic = 1,
		.dpcm_capture = 1,
	},
	{
		.name = "Capture_2",
		.stream_name = "Capture_2",
		.cpu_dai_name = "UL2",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
			    SND_SOC_DPCM_TRIGGER_PRE},
		.dynamic = 1,
		.dpcm_capture = 1,
	},
	{
		.name = "Capture_3",
		.stream_name = "Capture_3",
		.cpu_dai_name = "UL3",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
			    SND_SOC_DPCM_TRIGGER_PRE},
		.dynamic = 1,
		.dpcm_capture = 1,
	},
	{
		.name = "Capture_Mono_1",
		.stream_name = "Capture_Mono_1",
		.cpu_dai_name = "UL_MONO_1",
		.codec_name = "snd-soc-dummy",
		.codec_dai_name = "snd-soc-dummy-dai",
		.trigger = {SND_SOC_DPCM_TRIGGER_PRE,
			    SND_SOC_DPCM_TRIGGER_PRE},
		.dynamic = 1,
		.dpcm_capture = 1,
	},
	/* BE */
	{
		.name = "Primary Codec",
		.cpu_dai_name = "ADDA",
		.codec_dai_name = "mt6351-snd-codec-aif1",
		.no_pcm = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ignore_suspend = 1,
	},
};

static struct snd_soc_card mt6797_mt6351_card = {
	.name = "mt6797-mt6351",
	.owner = THIS_MODULE,
	.dai_link = mt6797_mt6351_dai_links,
	.num_links = ARRAY_SIZE(mt6797_mt6351_dai_links),
};

static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &mt6797_mt6351_card;
	struct device_node *platform_node, *codec_node;
	int ret, i;

	card->dev = &pdev->dev;

	platform_node = of_parse_phandle(pdev->dev.of_node,
					 "mediatek,platform", 0);
	if (!platform_node) {
		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
		return -EINVAL;
	}
	for (i = 0; i < card->num_links; i++) {
		if (mt6797_mt6351_dai_links[i].platform_name)
			continue;
		mt6797_mt6351_dai_links[i].platform_of_node = platform_node;
	}

	codec_node = of_parse_phandle(pdev->dev.of_node,
				      "mediatek,audio-codec", 0);
	if (!codec_node) {
		dev_err(&pdev->dev,
			"Property 'audio-codec' missing or invalid\n");
		return -EINVAL;
	}
	for (i = 0; i < card->num_links; i++) {
		if (mt6797_mt6351_dai_links[i].codec_name)
			continue;
		mt6797_mt6351_dai_links[i].codec_of_node = codec_node;
	}

	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret)
		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
			__func__, ret);

	return ret;
}

#ifdef CONFIG_OF
static const struct of_device_id mt6797_mt6351_dt_match[] = {
	{.compatible = "mediatek,mt6797-mt6351-sound",},
	{}
};
#endif

static struct platform_driver mt6797_mt6351_driver = {
	.driver = {
		.name = "mt6797-mt6351",
		.owner = THIS_MODULE,
#ifdef CONFIG_OF
		.of_match_table = mt6797_mt6351_dt_match,
#endif
	},
	.probe = mt6797_mt6351_dev_probe,
};

module_platform_driver(mt6797_mt6351_driver);

/* Module information */
MODULE_DESCRIPTION("MT6797 MT6351 ALSA SoC machine driver");
MODULE_AUTHOR("KaiChieh Chuang <kaichieh.chuang@mediatek.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("mt6797 mt6351 soc card");