sound/soc/amd/vangogh/acp5x-mach.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Machine driver for AMD Vangogh platform using NAU8821 & CS35L41
  * codecs.
  *
  * Copyright 2021 Advanced Micro Devices, Inc.
  */

 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include <linux/module.h>
 #include <linux/io.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>

 #include <sound/jack.h>
 #include <linux/clk.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/io.h>
 #include <linux/acpi.h>
 #include <linux/dmi.h>

 #include "../../codecs/nau8821.h"
 #include "../../codecs/cs35l41.h"

 #include "acp5x.h"

 #define DRV_NAME "acp5x_mach"
 #define DUAL_CHANNEL		2
 #define ACP5X_NUVOTON_CODEC_DAI	"nau8821-hifi"
 #define VG_JUPITER 1

 static unsigned long acp5x_machine_id;
 static struct snd_soc_jack vg_headset;

 static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = {
 	{
 		.pin	= "Headphone",
 		.mask	= SND_JACK_HEADPHONE,
 	},
 	{
 		.pin	= "Headset Mic",
 		.mask	= SND_JACK_MICROPHONE,
 	},
 };

 static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd)
 {
 	int ret;
 	struct snd_soc_card *card = rtd->card;
 	struct snd_soc_component *component =
 					asoc_rtd_to_codec(rtd, 0)->component;

 	/*
 	 * Headset buttons map to the google Reference headset.
 	 * These can be configured by userspace.
 	 */
 	ret = snd_soc_card_jack_new(card, "Headset Jack",
 				    SND_JACK_HEADSET | SND_JACK_BTN_0,
 				    &vg_headset, acp5x_nau8821_jack_pins,
 				    ARRAY_SIZE(acp5x_nau8821_jack_pins));
 	if (ret) {
 		dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
 		return ret;
 	}

 	snd_jack_set_key(vg_headset.jack, SND_JACK_BTN_0, KEY_MEDIA);
 	nau8821_enable_jack_detect(component, &vg_headset);
 	return ret;
 }

 static int acp5x_cs35l41_init(struct snd_soc_pcm_runtime *rtd)
 {
 	return 0;
 }

 static const unsigned int rates[] = {
 	48000,
 };

 static const struct snd_pcm_hw_constraint_list constraints_rates = {
 	.count = ARRAY_SIZE(rates),
 	.list  = rates,
 	.mask = 0,
 };

 static const unsigned int channels[] = {
 	2,
 };

 static const struct snd_pcm_hw_constraint_list constraints_channels = {
 	.count = ARRAY_SIZE(channels),
 	.list = channels,
 	.mask = 0,
 };

 static int acp5x_8821_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_card *card = rtd->card;
 	struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card);

 	machine->play_i2s_instance = I2S_SP_INSTANCE;
 	machine->cap_i2s_instance = I2S_SP_INSTANCE;

 	runtime->hw.channels_max = DUAL_CHANNEL;
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 				   &constraints_channels);
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 				   &constraints_rates);
 	return 0;
 }

 static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream,
 				   struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_card *card = rtd->card;
 	struct snd_soc_dai *codec_dai =
 			snd_soc_card_get_codec_dai(card,
 						   ACP5X_NUVOTON_CODEC_DAI);
 	int ret;

 	ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_FLL_BLK, 0,
 				     SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		dev_err(card->dev, "can't set FS clock %d\n", ret);
 	ret = snd_soc_dai_set_pll(codec_dai, 0, 0, snd_soc_params_to_bclk(params),
 				  params_rate(params) * 256);
 	if (ret < 0)
 		dev_err(card->dev, "can't set FLL: %d\n", ret);

 	return ret;
 }

 static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_card *card = rtd->card;
 	struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card);

 	machine->play_i2s_instance = I2S_HS_INSTANCE;

 	runtime->hw.channels_max = DUAL_CHANNEL;
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 				   &constraints_channels);
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 				   &constraints_rates);
 	return 0;
 }

 static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream,
 				   struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_card *card = rtd->card;
 	struct snd_soc_dai *codec_dai;
 	int ret, i;
 	unsigned int num_codecs = rtd->num_codecs;
 	unsigned int bclk_val;

 	for (i = 0; i < num_codecs; i++) {
 		codec_dai = asoc_rtd_to_codec(rtd, i);
 		if ((strcmp(codec_dai->name, "spi-VLV1776:00") == 0) ||
 		    (strcmp(codec_dai->name, "spi-VLV1776:01") == 0)) {
 			switch (params_rate(params)) {
 			case 48000:
 				bclk_val = 1536000;
 				break;
 			default:
 				dev_err(card->dev, "Invalid Samplerate:0x%x\n",
 					params_rate(params));
 				return -EINVAL;
 			}
 			ret = snd_soc_component_set_sysclk(codec_dai->component,
 							   0, 0, bclk_val, SND_SOC_CLOCK_IN);
 			if (ret < 0) {
 				dev_err(card->dev, "failed to set sysclk for CS35l41 dai\n");
 				return ret;
 			}
 		}
 	}

 	return ret;
 }

 static const struct snd_soc_ops acp5x_8821_ops = {
 	.startup = acp5x_8821_startup,
 	.hw_params = acp5x_nau8821_hw_params,
 };

 static const struct snd_soc_ops acp5x_cs35l41_play_ops = {
 	.startup = acp5x_cs35l41_startup,
 	.hw_params = acp5x_cs35l41_hw_params,
 };

 static struct snd_soc_codec_conf cs35l41_conf[] = {
 	{
 		.dlc = COMP_CODEC_CONF("spi-VLV1776:00"),
 		.name_prefix = "Left",
 	},
 	{
 		.dlc = COMP_CODEC_CONF("spi-VLV1776:01"),
 		.name_prefix = "Right",
 	},
 };

 SND_SOC_DAILINK_DEF(acp5x_i2s,
 		    DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0")));

 SND_SOC_DAILINK_DEF(acp5x_bt,
 		    DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1")));

 SND_SOC_DAILINK_DEF(nau8821,
 		    DAILINK_COMP_ARRAY(COMP_CODEC("i2c-NVTN2020:00",
 						  "nau8821-hifi")));

 SND_SOC_DAILINK_DEF(cs35l41,
 		    DAILINK_COMP_ARRAY(COMP_CODEC("spi-VLV1776:00", "cs35l41-pcm"),
 				       COMP_CODEC("spi-VLV1776:01", "cs35l41-pcm")));

 SND_SOC_DAILINK_DEF(platform,
 		    DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0")));

 static struct snd_soc_dai_link acp5x_dai[] = {
 	{
 		.name = "acp5x-8825-play",
 		.stream_name = "Playback/Capture",
 		.dai_fmt = SND_SOC_DAIFMT_I2S  | SND_SOC_DAIFMT_NB_NF |
 			   SND_SOC_DAIFMT_CBC_CFC,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 		.ops = &acp5x_8821_ops,
 		.init = acp5x_8821_init,
 		SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform),
 	},
 	{
 		.name = "acp5x-CS35L41-Stereo",
 		.stream_name = "CS35L41 Stereo Playback",
 		.dai_fmt = SND_SOC_DAIFMT_I2S  | SND_SOC_DAIFMT_NB_NF |
 			   SND_SOC_DAIFMT_CBC_CFC,
 		.dpcm_playback = 1,
 		.playback_only = 1,
 		.ops = &acp5x_cs35l41_play_ops,
 		.init = acp5x_cs35l41_init,
 		SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform),
 	},
 };

 static int platform_clock_control(struct snd_soc_dapm_widget *w,
 				  struct snd_kcontrol *k, int  event)
 {
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct snd_soc_card *card = dapm->card;
 	struct snd_soc_dai *codec_dai;
 	int ret = 0;

 	codec_dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI);
 	if (!codec_dai) {
 		dev_err(card->dev, "Codec dai not found\n");
 		return -EIO;
 	}

 	if (SND_SOC_DAPM_EVENT_OFF(event)) {
 		ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_INTERNAL,
 					     0, SND_SOC_CLOCK_IN);
 		if (ret < 0) {
 			dev_err(card->dev, "set sysclk err = %d\n", ret);
 			return -EIO;
 		}
 	}
 	return ret;
 }

 static const struct snd_kcontrol_new acp5x_8821_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 	SOC_DAPM_PIN_SWITCH("Int Mic"),
 };

 static const struct snd_soc_dapm_widget acp5x_8821_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 	SND_SOC_DAPM_MIC("Int Mic", NULL),
 	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 			    platform_clock_control, SND_SOC_DAPM_POST_PMD),
 };

 static const struct snd_soc_dapm_route acp5x_8821_audio_route[] = {
 	/* HP jack connectors - unknown if we have jack detection */
 	{ "Headphone", NULL, "HPOL" },
 	{ "Headphone", NULL, "HPOR" },
 	{ "MICL", NULL, "Headset Mic" },
 	{ "MICR", NULL, "Headset Mic" },
 	{ "DMIC", NULL, "Int Mic" },

 	{ "Headphone", NULL, "Platform Clock" },
 	{ "Headset Mic", NULL, "Platform Clock" },
 	{ "Int Mic", NULL, "Platform Clock" },
 };

 static struct snd_soc_card acp5x_card = {
 	.name = "acp5x",
 	.owner = THIS_MODULE,
 	.dai_link = acp5x_dai,
 	.num_links = ARRAY_SIZE(acp5x_dai),
 	.dapm_widgets = acp5x_8821_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(acp5x_8821_widgets),
 	.dapm_routes = acp5x_8821_audio_route,
 	.num_dapm_routes = ARRAY_SIZE(acp5x_8821_audio_route),
 	.codec_conf = cs35l41_conf,
 	.num_configs = ARRAY_SIZE(cs35l41_conf),
 	.controls = acp5x_8821_controls,
 	.num_controls = ARRAY_SIZE(acp5x_8821_controls),
 };


 static int acp5x_vg_quirk_cb(const struct dmi_system_id *id)
 {
 	acp5x_machine_id = VG_JUPITER;
 	return 1;
 }

 static const struct dmi_system_id acp5x_vg_quirk_table[] = {
 	{
 		.callback = acp5x_vg_quirk_cb,
 		.matches = {
 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"),
 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
 		}
 	},
 	{}
 };

 static int acp5x_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct acp5x_platform_info *machine;
 	struct snd_soc_card *card;

 	machine = devm_kzalloc(&pdev->dev, sizeof(struct acp5x_platform_info),
 			       GFP_KERNEL);
 	if (!machine)
 		return -ENOMEM;

 	dmi_check_system(acp5x_vg_quirk_table);
 	switch(acp5x_machine_id) {
 	case VG_JUPITER:
 		card = &acp5x_card;
 		acp5x_card.dev = &pdev->dev;
 		break;
 	default:
 		return -ENODEV;
 	}
 	platform_set_drvdata(pdev, card);
 	snd_soc_card_set_drvdata(card, machine);

 	ret = devm_snd_soc_register_card(&pdev->dev, card);
 	if (ret) {
 		return dev_err_probe(&pdev->dev, ret,
 				     "snd_soc_register_card(%s) failed\n",
 				     acp5x_card.name);
 	}
 	return 0;
 }

 static struct platform_driver acp5x_mach_driver = {
 	.driver = {
 		.name = "acp5x_mach",
 		.pm = &snd_soc_pm_ops,
 	},
 	.probe = acp5x_probe,
 };

 module_platform_driver(acp5x_mach_driver);

 MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
 MODULE_DESCRIPTION("NAU8821 & CS35L41 audio support");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:" DRV_NAME);
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Machine driver for AMD Vangogh platform using NAU8821 & CS35L41
	* codecs.
	*
	* Copyright 2021 Advanced Micro Devices, Inc.
	*/

	#include <sound/soc.h>
	#include <sound/soc-dapm.h>
	#include <linux/module.h>
	#include <linux/io.h>
	#include <sound/pcm.h>
	#include <sound/pcm_params.h>

	#include <sound/jack.h>
	#include <linux/clk.h>
	#include <linux/gpio.h>
	#include <linux/gpio/consumer.h>
	#include <linux/module.h>
	#include <linux/i2c.h>
	#include <linux/input.h>
	#include <linux/io.h>
	#include <linux/acpi.h>
	#include <linux/dmi.h>

	#include "../../codecs/nau8821.h"
	#include "../../codecs/cs35l41.h"

	#include "acp5x.h"

	#define DRV_NAME "acp5x_mach"
	#define DUAL_CHANNEL 2
	#define ACP5X_NUVOTON_CODEC_DAI "nau8821-hifi"
	#define VG_JUPITER 1

	static unsigned long acp5x_machine_id;
	static struct snd_soc_jack vg_headset;

	static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = {
	{
	.pin = "Headphone",
	.mask = SND_JACK_HEADPHONE,
	},
	{
	.pin = "Headset Mic",
	.mask = SND_JACK_MICROPHONE,
	},
	};

	static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd)
	{
	int ret;
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_component *component =
	asoc_rtd_to_codec(rtd, 0)->component;

	/*
	* Headset buttons map to the google Reference headset.
	* These can be configured by userspace.
	*/
	ret = snd_soc_card_jack_new(card, "Headset Jack",
	SND_JACK_HEADSET \| SND_JACK_BTN_0,
	&vg_headset, acp5x_nau8821_jack_pins,
	ARRAY_SIZE(acp5x_nau8821_jack_pins));
	if (ret) {
	dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
	return ret;
	}

	snd_jack_set_key(vg_headset.jack, SND_JACK_BTN_0, KEY_MEDIA);
	nau8821_enable_jack_detect(component, &vg_headset);
	return ret;
	}

	static int acp5x_cs35l41_init(struct snd_soc_pcm_runtime *rtd)
	{
	return 0;
	}

	static const unsigned int rates[] = {
	48000,
	};

	static const struct snd_pcm_hw_constraint_list constraints_rates = {
	.count = ARRAY_SIZE(rates),
	.list = rates,
	.mask = 0,
	};

	static const unsigned int channels[] = {
	2,
	};

	static const struct snd_pcm_hw_constraint_list constraints_channels = {
	.count = ARRAY_SIZE(channels),
	.list = channels,
	.mask = 0,
	};

	static int acp5x_8821_startup(struct snd_pcm_substream *substream)
	{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card);

	machine->play_i2s_instance = I2S_SP_INSTANCE;
	machine->cap_i2s_instance = I2S_SP_INSTANCE;

	runtime->hw.channels_max = DUAL_CHANNEL;
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
	&constraints_channels);
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
	&constraints_rates);
	return 0;
	}

	static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_dai *codec_dai =
	snd_soc_card_get_codec_dai(card,
	ACP5X_NUVOTON_CODEC_DAI);
	int ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_FLL_BLK, 0,
	SND_SOC_CLOCK_IN);
	if (ret < 0)
	dev_err(card->dev, "can't set FS clock %d\n", ret);
	ret = snd_soc_dai_set_pll(codec_dai, 0, 0, snd_soc_params_to_bclk(params),
	params_rate(params) * 256);
	if (ret < 0)
	dev_err(card->dev, "can't set FLL: %d\n", ret);

	return ret;
	}

	static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream)
	{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card);

	machine->play_i2s_instance = I2S_HS_INSTANCE;

	runtime->hw.channels_max = DUAL_CHANNEL;
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
	&constraints_channels);
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
	&constraints_rates);
	return 0;
	}

	static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_dai *codec_dai;
	int ret, i;
	unsigned int num_codecs = rtd->num_codecs;
	unsigned int bclk_val;

	for (i = 0; i < num_codecs; i++) {
	codec_dai = asoc_rtd_to_codec(rtd, i);
	if ((strcmp(codec_dai->name, "spi-VLV1776:00") == 0) \|\|
	(strcmp(codec_dai->name, "spi-VLV1776:01") == 0)) {
	switch (params_rate(params)) {
	case 48000:
	bclk_val = 1536000;
	break;
	default:
	dev_err(card->dev, "Invalid Samplerate:0x%x\n",
	params_rate(params));
	return -EINVAL;
	}
	ret = snd_soc_component_set_sysclk(codec_dai->component,
	0, 0, bclk_val, SND_SOC_CLOCK_IN);
	if (ret < 0) {
	dev_err(card->dev, "failed to set sysclk for CS35l41 dai\n");
	return ret;
	}
	}
	}

	return ret;
	}

	static const struct snd_soc_ops acp5x_8821_ops = {
	.startup = acp5x_8821_startup,
	.hw_params = acp5x_nau8821_hw_params,
	};

	static const struct snd_soc_ops acp5x_cs35l41_play_ops = {
	.startup = acp5x_cs35l41_startup,
	.hw_params = acp5x_cs35l41_hw_params,
	};

	static struct snd_soc_codec_conf cs35l41_conf[] = {
	{
	.dlc = COMP_CODEC_CONF("spi-VLV1776:00"),
	.name_prefix = "Left",
	},
	{
	.dlc = COMP_CODEC_CONF("spi-VLV1776:01"),
	.name_prefix = "Right",
	},
	};

	SND_SOC_DAILINK_DEF(acp5x_i2s,
	DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0")));

	SND_SOC_DAILINK_DEF(acp5x_bt,
	DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1")));

	SND_SOC_DAILINK_DEF(nau8821,
	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-NVTN2020:00",
	"nau8821-hifi")));

	SND_SOC_DAILINK_DEF(cs35l41,
	DAILINK_COMP_ARRAY(COMP_CODEC("spi-VLV1776:00", "cs35l41-pcm"),
	COMP_CODEC("spi-VLV1776:01", "cs35l41-pcm")));

	SND_SOC_DAILINK_DEF(platform,
	DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0")));

	static struct snd_soc_dai_link acp5x_dai[] = {
	{
	.name = "acp5x-8825-play",
	.stream_name = "Playback/Capture",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBC_CFC,
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	.ops = &acp5x_8821_ops,
	.init = acp5x_8821_init,
	SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform),
	},
	{
	.name = "acp5x-CS35L41-Stereo",
	.stream_name = "CS35L41 Stereo Playback",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBC_CFC,
	.dpcm_playback = 1,
	.playback_only = 1,
	.ops = &acp5x_cs35l41_play_ops,
	.init = acp5x_cs35l41_init,
	SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform),
	},
	};

	static int platform_clock_control(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct snd_soc_card *card = dapm->card;
	struct snd_soc_dai *codec_dai;
	int ret = 0;

	codec_dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI);
	if (!codec_dai) {
	dev_err(card->dev, "Codec dai not found\n");
	return -EIO;
	}

	if (SND_SOC_DAPM_EVENT_OFF(event)) {
	ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_INTERNAL,
	0, SND_SOC_CLOCK_IN);
	if (ret < 0) {
	dev_err(card->dev, "set sysclk err = %d\n", ret);
	return -EIO;
	}
	}
	return ret;
	}

	static const struct snd_kcontrol_new acp5x_8821_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Int Mic"),
	};

	static const struct snd_soc_dapm_widget acp5x_8821_widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Int Mic", NULL),
	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
	platform_clock_control, SND_SOC_DAPM_POST_PMD),
	};

	static const struct snd_soc_dapm_route acp5x_8821_audio_route[] = {
	/* HP jack connectors - unknown if we have jack detection */
	{ "Headphone", NULL, "HPOL" },
	{ "Headphone", NULL, "HPOR" },
	{ "MICL", NULL, "Headset Mic" },
	{ "MICR", NULL, "Headset Mic" },
	{ "DMIC", NULL, "Int Mic" },

	{ "Headphone", NULL, "Platform Clock" },
	{ "Headset Mic", NULL, "Platform Clock" },
	{ "Int Mic", NULL, "Platform Clock" },
	};

	static struct snd_soc_card acp5x_card = {
	.name = "acp5x",
	.owner = THIS_MODULE,
	.dai_link = acp5x_dai,
	.num_links = ARRAY_SIZE(acp5x_dai),
	.dapm_widgets = acp5x_8821_widgets,
	.num_dapm_widgets = ARRAY_SIZE(acp5x_8821_widgets),
	.dapm_routes = acp5x_8821_audio_route,
	.num_dapm_routes = ARRAY_SIZE(acp5x_8821_audio_route),
	.codec_conf = cs35l41_conf,
	.num_configs = ARRAY_SIZE(cs35l41_conf),
	.controls = acp5x_8821_controls,
	.num_controls = ARRAY_SIZE(acp5x_8821_controls),
	};


	static int acp5x_vg_quirk_cb(const struct dmi_system_id *id)
	{
	acp5x_machine_id = VG_JUPITER;
	return 1;
	}

	static const struct dmi_system_id acp5x_vg_quirk_table[] = {
	{
	.callback = acp5x_vg_quirk_cb,
	.matches = {
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
	}
	},
	{}
	};

	static int acp5x_probe(struct platform_device *pdev)
	{
	int ret;
	struct acp5x_platform_info *machine;
	struct snd_soc_card *card;

	machine = devm_kzalloc(&pdev->dev, sizeof(struct acp5x_platform_info),
	GFP_KERNEL);
	if (!machine)
	return -ENOMEM;

	dmi_check_system(acp5x_vg_quirk_table);
	switch(acp5x_machine_id) {
	case VG_JUPITER:
	card = &acp5x_card;
	acp5x_card.dev = &pdev->dev;
	break;
	default:
	return -ENODEV;
	}
	platform_set_drvdata(pdev, card);
	snd_soc_card_set_drvdata(card, machine);

	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret) {
	return dev_err_probe(&pdev->dev, ret,
	"snd_soc_register_card(%s) failed\n",
	acp5x_card.name);
	}
	return 0;
	}

	static struct platform_driver acp5x_mach_driver = {
	.driver = {
	.name = "acp5x_mach",
	.pm = &snd_soc_pm_ops,
	},
	.probe = acp5x_probe,
	};

	module_platform_driver(acp5x_mach_driver);

	MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
	MODULE_DESCRIPTION("NAU8821 & CS35L41 audio support");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:" DRV_NAME);