sound/soc/mediatek/mt8173/mt8173-rt5650.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 /*
  * mt8173-rt5650.c  --  MT8173 machine driver with RT5650 codecs
  *
  * Copyright (c) 2016 MediaTek Inc.
  * Author: Koro Chen <koro.chen@mediatek.com>
  */

 #include <linux/module.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
 #include <sound/soc.h>
 #include <sound/jack.h>
 #include "../../codecs/rt5645.h"

 #define MCLK_FOR_CODECS		12288000

 enum mt8173_rt5650_mclk {
 	MT8173_RT5650_MCLK_EXTERNAL = 0,
 	MT8173_RT5650_MCLK_INTERNAL,
 };

 struct mt8173_rt5650_platform_data {
 	enum mt8173_rt5650_mclk pll_from;
 	/* 0 = external oscillator; 1 = internal source from mt8173 */
 };

 static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
 	.pll_from = MT8173_RT5650_MCLK_EXTERNAL,
 };

 static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
 	SND_SOC_DAPM_SPK("Speaker", NULL),
 	SND_SOC_DAPM_MIC("Int Mic", NULL),
 	SND_SOC_DAPM_HP("Headphone", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 };

 static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
 	{"Speaker", NULL, "SPOL"},
 	{"Speaker", NULL, "SPOR"},
 	{"DMIC L1", NULL, "Int Mic"},
 	{"DMIC R1", NULL, "Int Mic"},
 	{"Headphone", NULL, "HPOL"},
 	{"Headphone", NULL, "HPOR"},
 	{"IN1P", NULL, "Headset Mic"},
 	{"IN1N", NULL, "Headset Mic"},
 };

 static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Speaker"),
 	SOC_DAPM_PIN_SWITCH("Int Mic"),
 	SOC_DAPM_PIN_SWITCH("Headphone"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 };

 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
 				   struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	unsigned int mclk_clock;
 	int i, ret;

 	switch (mt8173_rt5650_priv.pll_from) {
 	case MT8173_RT5650_MCLK_EXTERNAL:
 		/* mclk = 12.288M */
 		mclk_clock = MCLK_FOR_CODECS;
 		break;
 	case MT8173_RT5650_MCLK_INTERNAL:
 		/* mclk = sampling rate*256 */
 		mclk_clock = params_rate(params) * 256;
 		break;
 	default:
 		/* mclk = 12.288M */
 		mclk_clock = MCLK_FOR_CODECS;
 		break;
 	}

 	for (i = 0; i < rtd->num_codecs; i++) {
 		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];

 		/* pll from mclk */
 		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
 					  params_rate(params) * 512);
 		if (ret)
 			return ret;

 		/* sysclk from pll */
 		ret = snd_soc_dai_set_sysclk(codec_dai, 1,
 					     params_rate(params) * 512,
 					     SND_SOC_CLOCK_IN);
 		if (ret)
 			return ret;
 	}
 	return 0;
 }

 static const struct snd_soc_ops mt8173_rt5650_ops = {
 	.hw_params = mt8173_rt5650_hw_params,
 };

 static struct snd_soc_jack mt8173_rt5650_jack;

 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
 {
 	struct snd_soc_card *card = runtime->card;
 	struct snd_soc_component *component = runtime->codec_dais[0]->component;
 	const char *codec_capture_dai = runtime->codec_dais[1]->name;
 	int ret;

 	rt5645_sel_asrc_clk_src(component,
 				RT5645_DA_STEREO_FILTER,
 				RT5645_CLK_SEL_I2S1_ASRC);

 	if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
 		rt5645_sel_asrc_clk_src(component,
 					RT5645_AD_STEREO_FILTER,
 					RT5645_CLK_SEL_I2S1_ASRC);
 	} else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
 		rt5645_sel_asrc_clk_src(component,
 					RT5645_AD_STEREO_FILTER,
 					RT5645_CLK_SEL_I2S2_ASRC);
 	} else {
 		dev_warn(card->dev,
 			 "Only one dai codec found in DTS, enabled rt5645 AD filter\n");
 		rt5645_sel_asrc_clk_src(component,
 					RT5645_AD_STEREO_FILTER,
 					RT5645_CLK_SEL_I2S1_ASRC);
 	}

 	/* enable jack detection */
 	ret = snd_soc_card_jack_new(card, "Headset Jack",
 				    SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 				    SND_JACK_BTN_2 | SND_JACK_BTN_3,
 				    &mt8173_rt5650_jack, NULL, 0);
 	if (ret) {
 		dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
 		return ret;
 	}

 	return rt5645_set_jack_detect(component,
 				      &mt8173_rt5650_jack,
 				      &mt8173_rt5650_jack,
 				      &mt8173_rt5650_jack);
 }

 static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
 	{
 		/* Playback */
 		.dai_name = "rt5645-aif1",
 	},
 	{
 		/* Capture */
 		.dai_name = "rt5645-aif1",
 	},
 };

 enum {
 	DAI_LINK_PLAYBACK,
 	DAI_LINK_CAPTURE,
 	DAI_LINK_HDMI,
 	DAI_LINK_CODEC_I2S,
 	DAI_LINK_HDMI_I2S,
 };

 /* Digital audio interface glue - connects codec <---> CPU */
 static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
 	/* Front End DAI links */
 	[DAI_LINK_PLAYBACK] = {
 		.name = "rt5650 Playback",
 		.stream_name = "rt5650 Playback",
 		.cpu_dai_name = "DL1",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dynamic = 1,
 		.dpcm_playback = 1,
 	},
 	[DAI_LINK_CAPTURE] = {
 		.name = "rt5650 Capture",
 		.stream_name = "rt5650 Capture",
 		.cpu_dai_name = "VUL",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dynamic = 1,
 		.dpcm_capture = 1,
 	},
 	[DAI_LINK_HDMI] = {
 		.name = "HDMI",
 		.stream_name = "HDMI PCM",
 		.cpu_dai_name = "HDMI",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dynamic = 1,
 		.dpcm_playback = 1,
 	},
 	/* Back End DAI links */
 	[DAI_LINK_CODEC_I2S] = {
 		.name = "Codec",
 		.cpu_dai_name = "I2S",
 		.no_pcm = 1,
 		.codecs = mt8173_rt5650_codecs,
 		.num_codecs = 2,
 		.init = mt8173_rt5650_init,
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 			   SND_SOC_DAIFMT_CBS_CFS,
 		.ops = &mt8173_rt5650_ops,
 		.ignore_pmdown_time = 1,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 	},
 	[DAI_LINK_HDMI_I2S] = {
 		.name = "HDMI BE",
 		.cpu_dai_name = "HDMIO",
 		.no_pcm = 1,
 		.codec_dai_name = "i2s-hifi",
 		.dpcm_playback = 1,
 	},
 };

 static struct snd_soc_card mt8173_rt5650_card = {
 	.name = "mtk-rt5650",
 	.owner = THIS_MODULE,
 	.dai_link = mt8173_rt5650_dais,
 	.num_links = ARRAY_SIZE(mt8173_rt5650_dais),
 	.controls = mt8173_rt5650_controls,
 	.num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
 	.dapm_widgets = mt8173_rt5650_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
 	.dapm_routes = mt8173_rt5650_routes,
 	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
 };

 static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt8173_rt5650_card;
 	struct device_node *platform_node;
 	struct device_node *np;
 	const char *codec_capture_dai;
 	int i, ret;

 	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 (mt8173_rt5650_dais[i].platform_name)
 			continue;
 		mt8173_rt5650_dais[i].platform_of_node = platform_node;
 	}

 	mt8173_rt5650_codecs[0].of_node =
 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
 	if (!mt8173_rt5650_codecs[0].of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
 	mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;

 	np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
 	if (np) {
 		ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
 		of_node_put(np);
 		if (ret < 0) {
 			dev_err(&pdev->dev,
 				"%s codec_capture_dai name fail %d\n",
 				__func__, ret);
 			return ret;
 		}
 		mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
 	}

 	if (device_property_present(&pdev->dev, "mediatek,mclk")) {
 		ret = device_property_read_u32(&pdev->dev,
 					       "mediatek,mclk",
 					       &mt8173_rt5650_priv.pll_from);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"%s snd_soc_register_card fail %d\n",
 				__func__, ret);
 		}
 	}

 	mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node =
 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
 	if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
 	card->dev = &pdev->dev;

 	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;
 }

 static const struct of_device_id mt8173_rt5650_dt_match[] = {
 	{ .compatible = "mediatek,mt8173-rt5650", },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);

 static struct platform_driver mt8173_rt5650_driver = {
 	.driver = {
 		   .name = "mtk-rt5650",
 		   .of_match_table = mt8173_rt5650_dt_match,
 #ifdef CONFIG_PM
 		   .pm = &snd_soc_pm_ops,
 #endif
 	},
 	.probe = mt8173_rt5650_dev_probe,
 };

 module_platform_driver(mt8173_rt5650_driver);

 /* Module information */
 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:mtk-rt5650");
	// SPDX-License-Identifier: GPL-2.0
	/*
	* mt8173-rt5650.c -- MT8173 machine driver with RT5650 codecs
	*
	* Copyright (c) 2016 MediaTek Inc.
	* Author: Koro Chen <koro.chen@mediatek.com>
	*/

	#include <linux/module.h>
	#include <linux/gpio.h>
	#include <linux/of_gpio.h>
	#include <sound/soc.h>
	#include <sound/jack.h>
	#include "../../codecs/rt5645.h"

	#define MCLK_FOR_CODECS 12288000

	enum mt8173_rt5650_mclk {
	MT8173_RT5650_MCLK_EXTERNAL = 0,
	MT8173_RT5650_MCLK_INTERNAL,
	};

	struct mt8173_rt5650_platform_data {
	enum mt8173_rt5650_mclk pll_from;
	/* 0 = external oscillator; 1 = internal source from mt8173 */
	};

	static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
	.pll_from = MT8173_RT5650_MCLK_EXTERNAL,
	};

	static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_MIC("Int Mic", NULL),
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	};

	static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
	{"Speaker", NULL, "SPOL"},
	{"Speaker", NULL, "SPOR"},
	{"DMIC L1", NULL, "Int Mic"},
	{"DMIC R1", NULL, "Int Mic"},
	{"Headphone", NULL, "HPOL"},
	{"Headphone", NULL, "HPOR"},
	{"IN1P", NULL, "Headset Mic"},
	{"IN1N", NULL, "Headset Mic"},
	};

	static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
	SOC_DAPM_PIN_SWITCH("Speaker"),
	SOC_DAPM_PIN_SWITCH("Int Mic"),
	SOC_DAPM_PIN_SWITCH("Headphone"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	};

	static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	unsigned int mclk_clock;
	int i, ret;

	switch (mt8173_rt5650_priv.pll_from) {
	case MT8173_RT5650_MCLK_EXTERNAL:
	/* mclk = 12.288M */
	mclk_clock = MCLK_FOR_CODECS;
	break;
	case MT8173_RT5650_MCLK_INTERNAL:
	/* mclk = sampling rate256 /
	mclk_clock = params_rate(params) * 256;
	break;
	default:
	/* mclk = 12.288M */
	mclk_clock = MCLK_FOR_CODECS;
	break;
	}

	for (i = 0; i < rtd->num_codecs; i++) {
	struct snd_soc_dai *codec_dai = rtd->codec_dais[i];

	/* pll from mclk */
	ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
	params_rate(params) * 512);
	if (ret)
	return ret;

	/* sysclk from pll */
	ret = snd_soc_dai_set_sysclk(codec_dai, 1,
	params_rate(params) * 512,
	SND_SOC_CLOCK_IN);
	if (ret)
	return ret;
	}
	return 0;
	}

	static const struct snd_soc_ops mt8173_rt5650_ops = {
	.hw_params = mt8173_rt5650_hw_params,
	};

	static struct snd_soc_jack mt8173_rt5650_jack;

	static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
	{
	struct snd_soc_card *card = runtime->card;
	struct snd_soc_component *component = runtime->codec_dais[0]->component;
	const char *codec_capture_dai = runtime->codec_dais[1]->name;
	int ret;

	rt5645_sel_asrc_clk_src(component,
	RT5645_DA_STEREO_FILTER,
	RT5645_CLK_SEL_I2S1_ASRC);

	if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
	rt5645_sel_asrc_clk_src(component,
	RT5645_AD_STEREO_FILTER,
	RT5645_CLK_SEL_I2S1_ASRC);
	} else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
	rt5645_sel_asrc_clk_src(component,
	RT5645_AD_STEREO_FILTER,
	RT5645_CLK_SEL_I2S2_ASRC);
	} else {
	dev_warn(card->dev,
	"Only one dai codec found in DTS, enabled rt5645 AD filter\n");
	rt5645_sel_asrc_clk_src(component,
	RT5645_AD_STEREO_FILTER,
	RT5645_CLK_SEL_I2S1_ASRC);
	}

	/* enable jack detection */
	ret = snd_soc_card_jack_new(card, "Headset Jack",
	SND_JACK_HEADPHONE \| SND_JACK_MICROPHONE \|
	SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	SND_JACK_BTN_2 \| SND_JACK_BTN_3,
	&mt8173_rt5650_jack, NULL, 0);
	if (ret) {
	dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
	return ret;
	}

	return rt5645_set_jack_detect(component,
	&mt8173_rt5650_jack,
	&mt8173_rt5650_jack,
	&mt8173_rt5650_jack);
	}

	static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
	{
	/* Playback */
	.dai_name = "rt5645-aif1",
	},
	{
	/* Capture */
	.dai_name = "rt5645-aif1",
	},
	};

	enum {
	DAI_LINK_PLAYBACK,
	DAI_LINK_CAPTURE,
	DAI_LINK_HDMI,
	DAI_LINK_CODEC_I2S,
	DAI_LINK_HDMI_I2S,
	};

	/* Digital audio interface glue - connects codec <---> CPU */
	static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
	/* Front End DAI links */
	[DAI_LINK_PLAYBACK] = {
	.name = "rt5650 Playback",
	.stream_name = "rt5650 Playback",
	.cpu_dai_name = "DL1",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dynamic = 1,
	.dpcm_playback = 1,
	},
	[DAI_LINK_CAPTURE] = {
	.name = "rt5650 Capture",
	.stream_name = "rt5650 Capture",
	.cpu_dai_name = "VUL",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dynamic = 1,
	.dpcm_capture = 1,
	},
	[DAI_LINK_HDMI] = {
	.name = "HDMI",
	.stream_name = "HDMI PCM",
	.cpu_dai_name = "HDMI",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dynamic = 1,
	.dpcm_playback = 1,
	},
	/* Back End DAI links */
	[DAI_LINK_CODEC_I2S] = {
	.name = "Codec",
	.cpu_dai_name = "I2S",
	.no_pcm = 1,
	.codecs = mt8173_rt5650_codecs,
	.num_codecs = 2,
	.init = mt8173_rt5650_init,
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ops = &mt8173_rt5650_ops,
	.ignore_pmdown_time = 1,
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	},
	[DAI_LINK_HDMI_I2S] = {
	.name = "HDMI BE",
	.cpu_dai_name = "HDMIO",
	.no_pcm = 1,
	.codec_dai_name = "i2s-hifi",
	.dpcm_playback = 1,
	},
	};

	static struct snd_soc_card mt8173_rt5650_card = {
	.name = "mtk-rt5650",
	.owner = THIS_MODULE,
	.dai_link = mt8173_rt5650_dais,
	.num_links = ARRAY_SIZE(mt8173_rt5650_dais),
	.controls = mt8173_rt5650_controls,
	.num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
	.dapm_widgets = mt8173_rt5650_widgets,
	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
	.dapm_routes = mt8173_rt5650_routes,
	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
	};

	static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
	{
	struct snd_soc_card *card = &mt8173_rt5650_card;
	struct device_node *platform_node;
	struct device_node *np;
	const char *codec_capture_dai;
	int i, ret;

	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 (mt8173_rt5650_dais[i].platform_name)
	continue;
	mt8173_rt5650_dais[i].platform_of_node = platform_node;
	}

	mt8173_rt5650_codecs[0].of_node =
	of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
	if (!mt8173_rt5650_codecs[0].of_node) {
	dev_err(&pdev->dev,
	"Property 'audio-codec' missing or invalid\n");
	return -EINVAL;
	}
	mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;

	np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
	if (np) {
	ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
	of_node_put(np);
	if (ret < 0) {
	dev_err(&pdev->dev,
	"%s codec_capture_dai name fail %d\n",
	__func__, ret);
	return ret;
	}
	mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
	}

	if (device_property_present(&pdev->dev, "mediatek,mclk")) {
	ret = device_property_read_u32(&pdev->dev,
	"mediatek,mclk",
	&mt8173_rt5650_priv.pll_from);
	if (ret) {
	dev_err(&pdev->dev,
	"%s snd_soc_register_card fail %d\n",
	__func__, ret);
	}
	}

	mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node =
	of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
	if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
	dev_err(&pdev->dev,
	"Property 'audio-codec' missing or invalid\n");
	return -EINVAL;
	}
	card->dev = &pdev->dev;

	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;
	}

	static const struct of_device_id mt8173_rt5650_dt_match[] = {
	{ .compatible = "mediatek,mt8173-rt5650", },
	{ }
	};
	MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);

	static struct platform_driver mt8173_rt5650_driver = {
	.driver = {
	.name = "mtk-rt5650",
	.of_match_table = mt8173_rt5650_dt_match,
	#ifdef CONFIG_PM
	.pm = &snd_soc_pm_ops,
	#endif
	},
	.probe = mt8173_rt5650_dev_probe,
	};

	module_platform_driver(mt8173_rt5650_driver);

	/* Module information */
	MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
	MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:mtk-rt5650");