sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c - arm/linux - Git at Google

 /*
  * mt8173-rt5650-rt5676.c  --  MT8173 machine driver with RT5650/5676 codecs
  *
  * Copyright (c) 2015 MediaTek Inc.
  * Author: Koro Chen <koro.chen@mediatek.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */

 #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"
 #include "../../codecs/rt5677.h"

 #define MCLK_FOR_CODECS		12288000

 static const struct snd_soc_dapm_widget mt8173_rt5650_rt5676_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_rt5676_routes[] = {
 	{"Speaker", NULL, "SPOL"},
 	{"Speaker", NULL, "SPOR"},
 	{"Speaker", NULL, "Sub AIF2TX"}, /* IF2 ADC to 5650  */
 	{"Sub DMIC L1", NULL, "Int Mic"}, /* DMIC from 5676 */
 	{"Sub DMIC R1", NULL, "Int Mic"},
 	{"Headphone", NULL, "HPOL"},
 	{"Headphone", NULL, "HPOR"},
 	{"Headphone", NULL, "Sub AIF2TX"}, /* IF2 ADC to 5650  */
 	{"Headset Mic", NULL, "micbias1"},
 	{"Headset Mic", NULL, "micbias2"},
 	{"IN1P", NULL, "Headset Mic"},
 	{"IN1N", NULL, "Headset Mic"},
 	{"Sub AIF2RX", NULL, "Headset Mic"}, /* IF2 DAC from 5650  */
 };

 static const struct snd_kcontrol_new mt8173_rt5650_rt5676_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_rt5676_hw_params(struct snd_pcm_substream *substream,
 					  struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	int i, ret;

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

 		/* pll from mclk 12.288M */
 		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,
 					  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_rt5676_ops = {
 	.hw_params = mt8173_rt5650_rt5676_hw_params,
 };

 static struct snd_soc_jack mt8173_rt5650_rt5676_jack;

 static int mt8173_rt5650_rt5676_init(struct snd_soc_pcm_runtime *runtime)
 {
 	struct snd_soc_card *card = runtime->card;
 	struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;
 	struct snd_soc_codec *codec_sub = runtime->codec_dais[1]->codec;
 	int ret;

 	rt5645_sel_asrc_clk_src(codec,
 				RT5645_DA_STEREO_FILTER |
 				RT5645_AD_STEREO_FILTER,
 				RT5645_CLK_SEL_I2S1_ASRC);
 	rt5677_sel_asrc_clk_src(codec_sub,
 				RT5677_DA_STEREO_FILTER |
 				RT5677_AD_STEREO1_FILTER,
 				RT5677_CLK_SEL_I2S1_ASRC);
 	rt5677_sel_asrc_clk_src(codec_sub,
 				RT5677_AD_STEREO2_FILTER |
 				RT5677_I2S2_SOURCE,
 				RT5677_CLK_SEL_I2S2_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_rt5676_jack, NULL, 0);
 	if (ret) {
 		dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
 		return ret;
 	}

 	return rt5645_set_jack_detect(codec,
 				      &mt8173_rt5650_rt5676_jack,
 				      &mt8173_rt5650_rt5676_jack,
 				      &mt8173_rt5650_rt5676_jack);
 }

 static struct snd_soc_dai_link_component mt8173_rt5650_rt5676_codecs[] = {
 	{
 		.dai_name = "rt5645-aif1",
 	},
 	{
 		.dai_name = "rt5677-aif1",
 	},
 };

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

 /* Digital audio interface glue - connects codec <---> CPU */
 static struct snd_soc_dai_link mt8173_rt5650_rt5676_dais[] = {
 	/* Front End DAI links */
 	[DAI_LINK_PLAYBACK] = {
 		.name = "rt5650_rt5676 Playback",
 		.stream_name = "rt5650_rt5676 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_rt5676 Capture",
 		.stream_name = "rt5650_rt5676 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_rt5676_codecs,
 		.num_codecs = 2,
 		.init = mt8173_rt5650_rt5676_init,
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 			   SND_SOC_DAIFMT_CBS_CFS,
 		.ops = &mt8173_rt5650_rt5676_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,
 	},
 	/* rt5676 <-> rt5650 intercodec link: Sets rt5676 I2S2 as master */
 	[DAI_LINK_INTERCODEC] = {
 		.name = "rt5650_rt5676 intercodec",
 		.stream_name = "rt5650_rt5676 intercodec",
 		.cpu_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "snd-soc-dummy",
 		.no_pcm = 1,
 		.codec_dai_name = "rt5677-aif2",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 			   SND_SOC_DAIFMT_CBM_CFM,
 	},

 };

 static struct snd_soc_codec_conf mt8173_rt5650_rt5676_codec_conf[] = {
 	{
 		.name_prefix = "Sub",
 	},
 };

 static struct snd_soc_card mt8173_rt5650_rt5676_card = {
 	.name = "mtk-rt5650-rt5676",
 	.owner = THIS_MODULE,
 	.dai_link = mt8173_rt5650_rt5676_dais,
 	.num_links = ARRAY_SIZE(mt8173_rt5650_rt5676_dais),
 	.codec_conf = mt8173_rt5650_rt5676_codec_conf,
 	.num_configs = ARRAY_SIZE(mt8173_rt5650_rt5676_codec_conf),
 	.controls = mt8173_rt5650_rt5676_controls,
 	.num_controls = ARRAY_SIZE(mt8173_rt5650_rt5676_controls),
 	.dapm_widgets = mt8173_rt5650_rt5676_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_rt5676_widgets),
 	.dapm_routes = mt8173_rt5650_rt5676_routes,
 	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_rt5676_routes),
 };

 static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt8173_rt5650_rt5676_card;
 	struct device_node *platform_node;
 	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_rt5676_dais[i].platform_name)
 			continue;
 		mt8173_rt5650_rt5676_dais[i].platform_of_node = platform_node;
 	}

 	mt8173_rt5650_rt5676_codecs[0].of_node =
 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
 	if (!mt8173_rt5650_rt5676_codecs[0].of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
 	mt8173_rt5650_rt5676_codecs[1].of_node =
 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
 	if (!mt8173_rt5650_rt5676_codecs[1].of_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
 	mt8173_rt5650_rt5676_codec_conf[0].of_node =
 		mt8173_rt5650_rt5676_codecs[1].of_node;

 	mt8173_rt5650_rt5676_dais[DAI_LINK_INTERCODEC].codec_of_node =
 		mt8173_rt5650_rt5676_codecs[1].of_node;

 	mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codec_of_node =
 		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 2);
 	if (!mt8173_rt5650_rt5676_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_rt5676_dt_match[] = {
 	{ .compatible = "mediatek,mt8173-rt5650-rt5676", },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mt8173_rt5650_rt5676_dt_match);

 static struct platform_driver mt8173_rt5650_rt5676_driver = {
 	.driver = {
 		   .name = "mtk-rt5650-rt5676",
 		   .of_match_table = mt8173_rt5650_rt5676_dt_match,
 #ifdef CONFIG_PM
 		   .pm = &snd_soc_pm_ops,
 #endif
 	},
 	.probe = mt8173_rt5650_rt5676_dev_probe,
 };

 module_platform_driver(mt8173_rt5650_rt5676_driver);

 /* Module information */
 MODULE_DESCRIPTION("MT8173 RT5650 and RT5676 SoC machine driver");
 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:mtk-rt5650-rt5676");
	/*
	* mt8173-rt5650-rt5676.c -- MT8173 machine driver with RT5650/5676 codecs
	*
	* Copyright (c) 2015 MediaTek Inc.
	* Author: Koro Chen <koro.chen@mediatek.com>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*/

	#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"
	#include "../../codecs/rt5677.h"

	#define MCLK_FOR_CODECS 12288000

	static const struct snd_soc_dapm_widget mt8173_rt5650_rt5676_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_rt5676_routes[] = {
	{"Speaker", NULL, "SPOL"},
	{"Speaker", NULL, "SPOR"},
	{"Speaker", NULL, "Sub AIF2TX"}, /* IF2 ADC to 5650 */
	{"Sub DMIC L1", NULL, "Int Mic"}, /* DMIC from 5676 */
	{"Sub DMIC R1", NULL, "Int Mic"},
	{"Headphone", NULL, "HPOL"},
	{"Headphone", NULL, "HPOR"},
	{"Headphone", NULL, "Sub AIF2TX"}, /* IF2 ADC to 5650 */
	{"Headset Mic", NULL, "micbias1"},
	{"Headset Mic", NULL, "micbias2"},
	{"IN1P", NULL, "Headset Mic"},
	{"IN1N", NULL, "Headset Mic"},
	{"Sub AIF2RX", NULL, "Headset Mic"}, /* IF2 DAC from 5650 */
	};

	static const struct snd_kcontrol_new mt8173_rt5650_rt5676_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_rt5676_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	int i, ret;

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

	/* pll from mclk 12.288M */
	ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,
	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_rt5676_ops = {
	.hw_params = mt8173_rt5650_rt5676_hw_params,
	};

	static struct snd_soc_jack mt8173_rt5650_rt5676_jack;

	static int mt8173_rt5650_rt5676_init(struct snd_soc_pcm_runtime *runtime)
	{
	struct snd_soc_card *card = runtime->card;
	struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;
	struct snd_soc_codec *codec_sub = runtime->codec_dais[1]->codec;
	int ret;

	rt5645_sel_asrc_clk_src(codec,
	RT5645_DA_STEREO_FILTER \|
	RT5645_AD_STEREO_FILTER,
	RT5645_CLK_SEL_I2S1_ASRC);
	rt5677_sel_asrc_clk_src(codec_sub,
	RT5677_DA_STEREO_FILTER \|
	RT5677_AD_STEREO1_FILTER,
	RT5677_CLK_SEL_I2S1_ASRC);
	rt5677_sel_asrc_clk_src(codec_sub,
	RT5677_AD_STEREO2_FILTER \|
	RT5677_I2S2_SOURCE,
	RT5677_CLK_SEL_I2S2_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_rt5676_jack, NULL, 0);
	if (ret) {
	dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
	return ret;
	}

	return rt5645_set_jack_detect(codec,
	&mt8173_rt5650_rt5676_jack,
	&mt8173_rt5650_rt5676_jack,
	&mt8173_rt5650_rt5676_jack);
	}

	static struct snd_soc_dai_link_component mt8173_rt5650_rt5676_codecs[] = {
	{
	.dai_name = "rt5645-aif1",
	},
	{
	.dai_name = "rt5677-aif1",
	},
	};

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

	/* Digital audio interface glue - connects codec <---> CPU */
	static struct snd_soc_dai_link mt8173_rt5650_rt5676_dais[] = {
	/* Front End DAI links */
	[DAI_LINK_PLAYBACK] = {
	.name = "rt5650_rt5676 Playback",
	.stream_name = "rt5650_rt5676 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_rt5676 Capture",
	.stream_name = "rt5650_rt5676 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_rt5676_codecs,
	.num_codecs = 2,
	.init = mt8173_rt5650_rt5676_init,
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ops = &mt8173_rt5650_rt5676_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,
	},
	/* rt5676 <-> rt5650 intercodec link: Sets rt5676 I2S2 as master */
	[DAI_LINK_INTERCODEC] = {
	.name = "rt5650_rt5676 intercodec",
	.stream_name = "rt5650_rt5676 intercodec",
	.cpu_dai_name = "snd-soc-dummy-dai",
	.platform_name = "snd-soc-dummy",
	.no_pcm = 1,
	.codec_dai_name = "rt5677-aif2",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBM_CFM,
	},

	};

	static struct snd_soc_codec_conf mt8173_rt5650_rt5676_codec_conf[] = {
	{
	.name_prefix = "Sub",
	},
	};

	static struct snd_soc_card mt8173_rt5650_rt5676_card = {
	.name = "mtk-rt5650-rt5676",
	.owner = THIS_MODULE,
	.dai_link = mt8173_rt5650_rt5676_dais,
	.num_links = ARRAY_SIZE(mt8173_rt5650_rt5676_dais),
	.codec_conf = mt8173_rt5650_rt5676_codec_conf,
	.num_configs = ARRAY_SIZE(mt8173_rt5650_rt5676_codec_conf),
	.controls = mt8173_rt5650_rt5676_controls,
	.num_controls = ARRAY_SIZE(mt8173_rt5650_rt5676_controls),
	.dapm_widgets = mt8173_rt5650_rt5676_widgets,
	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_rt5676_widgets),
	.dapm_routes = mt8173_rt5650_rt5676_routes,
	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_rt5676_routes),
	};

	static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
	{
	struct snd_soc_card *card = &mt8173_rt5650_rt5676_card;
	struct device_node *platform_node;
	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_rt5676_dais[i].platform_name)
	continue;
	mt8173_rt5650_rt5676_dais[i].platform_of_node = platform_node;
	}

	mt8173_rt5650_rt5676_codecs[0].of_node =
	of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
	if (!mt8173_rt5650_rt5676_codecs[0].of_node) {
	dev_err(&pdev->dev,
	"Property 'audio-codec' missing or invalid\n");
	return -EINVAL;
	}
	mt8173_rt5650_rt5676_codecs[1].of_node =
	of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
	if (!mt8173_rt5650_rt5676_codecs[1].of_node) {
	dev_err(&pdev->dev,
	"Property 'audio-codec' missing or invalid\n");
	return -EINVAL;
	}
	mt8173_rt5650_rt5676_codec_conf[0].of_node =
	mt8173_rt5650_rt5676_codecs[1].of_node;

	mt8173_rt5650_rt5676_dais[DAI_LINK_INTERCODEC].codec_of_node =
	mt8173_rt5650_rt5676_codecs[1].of_node;

	mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codec_of_node =
	of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 2);
	if (!mt8173_rt5650_rt5676_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_rt5676_dt_match[] = {
	{ .compatible = "mediatek,mt8173-rt5650-rt5676", },
	{ }
	};
	MODULE_DEVICE_TABLE(of, mt8173_rt5650_rt5676_dt_match);

	static struct platform_driver mt8173_rt5650_rt5676_driver = {
	.driver = {
	.name = "mtk-rt5650-rt5676",
	.of_match_table = mt8173_rt5650_rt5676_dt_match,
	#ifdef CONFIG_PM
	.pm = &snd_soc_pm_ops,
	#endif
	},
	.probe = mt8173_rt5650_rt5676_dev_probe,
	};

	module_platform_driver(mt8173_rt5650_rt5676_driver);

	/* Module information */
	MODULE_DESCRIPTION("MT8173 RT5650 and RT5676 SoC machine driver");
	MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:mtk-rt5650-rt5676");