sound/soc/intel/boards/glk_rt5682_max98357a.c - hafnium/third_party/linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 // Copyright(c) 2018 Intel Corporation.

 /*
  * Intel Geminilake I2S Machine Driver with MAX98357A & RT5682 Codecs
  *
  * Modified from:
  *   Intel Apollolake I2S Machine driver
  */

 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <sound/core.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include "../skylake/skl.h"
 #include "../../codecs/rt5682.h"
 #include "../../codecs/hdac_hdmi.h"

 /* The platform clock outputs 19.2Mhz clock to codec as I2S MCLK */
 #define GLK_PLAT_CLK_FREQ 19200000
 #define RT5682_PLL_FREQ (48000 * 512)
 #define GLK_REALTEK_CODEC_DAI "rt5682-aif1"
 #define GLK_MAXIM_CODEC_DAI "HiFi"
 #define MAXIM_DEV0_NAME "MX98357A:00"
 #define DUAL_CHANNEL 2
 #define QUAD_CHANNEL 4
 #define NAME_SIZE 32

 static struct snd_soc_jack geminilake_hdmi[3];

 struct glk_hdmi_pcm {
 	struct list_head head;
 	struct snd_soc_dai *codec_dai;
 	int device;
 };

 struct glk_card_private {
 	struct snd_soc_jack geminilake_headset;
 	struct list_head hdmi_pcm_list;
 };

 enum {
 	GLK_DPCM_AUDIO_PB = 0,
 	GLK_DPCM_AUDIO_CP,
 	GLK_DPCM_AUDIO_HS_PB,
 	GLK_DPCM_AUDIO_ECHO_REF_CP,
 	GLK_DPCM_AUDIO_REF_CP,
 	GLK_DPCM_AUDIO_DMIC_CP,
 	GLK_DPCM_AUDIO_HDMI1_PB,
 	GLK_DPCM_AUDIO_HDMI2_PB,
 	GLK_DPCM_AUDIO_HDMI3_PB,
 };

 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, GLK_REALTEK_CODEC_DAI);
 	if (!codec_dai) {
 		dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n");
 		return -EIO;
 	}

 	if (SND_SOC_DAPM_EVENT_OFF(event)) {
 		ret = snd_soc_dai_set_sysclk(codec_dai, 0, 0, 0);
 		if (ret)
 			dev_err(card->dev, "failed to stop sysclk: %d\n", ret);
 	} else if (SND_SOC_DAPM_EVENT_ON(event)) {
 		ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK,
 					GLK_PLAT_CLK_FREQ, RT5682_PLL_FREQ);
 		if (ret < 0) {
 			dev_err(card->dev, "can't set codec pll: %d\n", ret);
 			return ret;
 		}
 	}

 	if (ret)
 		dev_err(card->dev, "failed to start internal clk: %d\n", ret);

 	return ret;
 }

 static const struct snd_kcontrol_new geminilake_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 	SOC_DAPM_PIN_SWITCH("Spk"),
 };

 static const struct snd_soc_dapm_widget geminilake_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 	SND_SOC_DAPM_SPK("Spk", NULL),
 	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
 	SND_SOC_DAPM_SPK("HDMI1", NULL),
 	SND_SOC_DAPM_SPK("HDMI2", NULL),
 	SND_SOC_DAPM_SPK("HDMI3", NULL),
 	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 			platform_clock_control, SND_SOC_DAPM_PRE_PMU |
 			SND_SOC_DAPM_POST_PMD),
 };

 static const struct snd_soc_dapm_route geminilake_map[] = {
 	/* HP jack connectors - unknown if we have jack detection */
 	{ "Headphone Jack", NULL, "Platform Clock" },
 	{ "Headphone Jack", NULL, "HPOL" },
 	{ "Headphone Jack", NULL, "HPOR" },

 	/* speaker */
 	{ "Spk", NULL, "Speaker" },

 	/* other jacks */
 	{ "Headset Mic", NULL, "Platform Clock" },
 	{ "IN1P", NULL, "Headset Mic" },

 	/* digital mics */
 	{ "DMic", NULL, "SoC DMIC" },

 	/* CODEC BE connections */
 	{ "HiFi Playback", NULL, "ssp1 Tx" },
 	{ "ssp1 Tx", NULL, "codec0_out" },

 	{ "AIF1 Playback", NULL, "ssp2 Tx" },
 	{ "ssp2 Tx", NULL, "codec1_out" },

 	{ "codec0_in", NULL, "ssp2 Rx" },
 	{ "ssp2 Rx", NULL, "AIF1 Capture" },

 	{ "HDMI1", NULL, "hif5-0 Output" },
 	{ "HDMI2", NULL, "hif6-0 Output" },
 	{ "HDMI2", NULL, "hif7-0 Output" },

 	{ "hifi3", NULL, "iDisp3 Tx" },
 	{ "iDisp3 Tx", NULL, "iDisp3_out" },
 	{ "hifi2", NULL, "iDisp2 Tx" },
 	{ "iDisp2 Tx", NULL, "iDisp2_out" },
 	{ "hifi1", NULL, "iDisp1 Tx" },
 	{ "iDisp1 Tx", NULL, "iDisp1_out" },

 	/* DMIC */
 	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
 	{ "DMIC01 Rx", NULL, "DMIC AIF" },
 };

 static int geminilake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
 			struct snd_pcm_hw_params *params)
 {
 	struct snd_interval *rate = hw_param_interval(params,
 			SNDRV_PCM_HW_PARAM_RATE);
 	struct snd_interval *channels = hw_param_interval(params,
 			SNDRV_PCM_HW_PARAM_CHANNELS);
 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

 	/* The ADSP will convert the FE rate to 48k, stereo */
 	rate->min = rate->max = 48000;
 	channels->min = channels->max = DUAL_CHANNEL;

 	/* set SSP to 24 bit */
 	snd_mask_none(fmt);
 	snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);

 	return 0;
 }

 static int geminilake_rt5682_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 	struct snd_soc_component *component = rtd->codec_dai->component;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_jack *jack;
 	int ret;

 	/* Configure sysclk for codec */
 	ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1,
 					RT5682_PLL_FREQ, SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);

 	/*
 	 * Headset buttons map to the google Reference headset.
 	 * These can be configured by userspace.
 	 */
 	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
 			SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 			SND_JACK_BTN_2 | SND_JACK_BTN_3 | SND_JACK_LINEOUT,
 			&ctx->geminilake_headset, NULL, 0);
 	if (ret) {
 		dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
 		return ret;
 	}

 	jack = &ctx->geminilake_headset;

 	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
 	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
 	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
 	ret = snd_soc_component_set_jack(component, jack, NULL);

 	if (ret) {
 		dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
 		return ret;
 	}

 	return ret;
 };

 static int geminilake_rt5682_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_dai *codec_dai = rtd->codec_dai;
 	int ret;

 	/* Set valid bitmask & configuration for I2S in 24 bit */
 	ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x0, 0x0, 2, 24);
 	if (ret < 0) {
 		dev_err(rtd->dev, "set TDM slot err:%d\n", ret);
 		return ret;
 	}

 	return ret;
 }

 static struct snd_soc_ops geminilake_rt5682_ops = {
 	.hw_params = geminilake_rt5682_hw_params,
 };

 static int geminilake_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 	struct snd_soc_dai *dai = rtd->codec_dai;
 	struct glk_hdmi_pcm *pcm;

 	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
 	if (!pcm)
 		return -ENOMEM;

 	pcm->device = GLK_DPCM_AUDIO_HDMI1_PB + dai->id;
 	pcm->codec_dai = dai;

 	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);

 	return 0;
 }

 static int geminilake_rt5682_fe_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_component *component = rtd->cpu_dai->component;
 	struct snd_soc_dapm_context *dapm;
 	int ret;

 	dapm = snd_soc_component_get_dapm(component);
 	ret = snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
 	if (ret) {
 		dev_err(rtd->dev, "Ref Cap ignore suspend failed %d\n", ret);
 		return ret;
 	}

 	return ret;
 }

 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[] = {
 	DUAL_CHANNEL,
 };

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

 static unsigned int channels_quad[] = {
 	QUAD_CHANNEL,
 };

 static struct snd_pcm_hw_constraint_list constraints_channels_quad = {
 	.count = ARRAY_SIZE(channels_quad),
 	.list = channels_quad,
 	.mask = 0,
 };

 static int geminilake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
 		struct snd_pcm_hw_params *params)
 {
 	struct snd_interval *channels = hw_param_interval(params,
 				SNDRV_PCM_HW_PARAM_CHANNELS);

 	/*
 	 * set BE channel constraint as user FE channels
 	 */
 	channels->min = channels->max = 4;

 	return 0;
 }

 static int geminilake_dmic_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;

 	runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL;
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 			&constraints_channels_quad);

 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
 			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
 }

 static const struct snd_soc_ops geminilake_dmic_ops = {
 	.startup = geminilake_dmic_startup,
 };

 static const unsigned int rates_16000[] = {
 	16000,
 };

 static const struct snd_pcm_hw_constraint_list constraints_16000 = {
 	.count = ARRAY_SIZE(rates_16000),
 	.list  = rates_16000,
 };

 static int geminilake_refcap_startup(struct snd_pcm_substream *substream)
 {
 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
 				SNDRV_PCM_HW_PARAM_RATE,
 				&constraints_16000);
 };

 static const struct snd_soc_ops geminilake_refcap_ops = {
 	.startup = geminilake_refcap_startup,
 };

 /* geminilake digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link geminilake_dais[] = {
 	/* Front End DAI links */
 	[GLK_DPCM_AUDIO_PB] = {
 		.name = "Glk Audio Port",
 		.stream_name = "Audio",
 		.cpu_dai_name = "System Pin",
 		.platform_name = "0000:00:0e.0",
 		.dynamic = 1,
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.nonatomic = 1,
 		.init = geminilake_rt5682_fe_init,
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dpcm_playback = 1,
 	},
 	[GLK_DPCM_AUDIO_CP] = {
 		.name = "Glk Audio Capture Port",
 		.stream_name = "Audio Record",
 		.cpu_dai_name = "System Pin",
 		.platform_name = "0000:00:0e.0",
 		.dynamic = 1,
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.nonatomic = 1,
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dpcm_capture = 1,
 	},
 	[GLK_DPCM_AUDIO_HS_PB] = {
 		.name = "Glk Audio Headset Playback",
 		.stream_name = "Headset Audio",
 		.cpu_dai_name = "System Pin2",
 		.platform_name = "0000:00:0e.0",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.dpcm_playback = 1,
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	[GLK_DPCM_AUDIO_ECHO_REF_CP] = {
 		.name = "Glk Audio Echo Reference cap",
 		.stream_name = "Echoreference Capture",
 		.cpu_dai_name = "Echoref Pin",
 		.platform_name = "0000:00:0e.0",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.init = NULL,
 		.capture_only = 1,
 		.nonatomic = 1,
 	},
 	[GLK_DPCM_AUDIO_REF_CP] = {
 		.name = "Glk Audio Reference cap",
 		.stream_name = "Refcap",
 		.cpu_dai_name = "Reference Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.init = NULL,
 		.dpcm_capture = 1,
 		.nonatomic = 1,
 		.dynamic = 1,
 		.ops = &geminilake_refcap_ops,
 	},
 	[GLK_DPCM_AUDIO_DMIC_CP] = {
 		.name = "Glk Audio DMIC cap",
 		.stream_name = "dmiccap",
 		.cpu_dai_name = "DMIC Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.init = NULL,
 		.dpcm_capture = 1,
 		.nonatomic = 1,
 		.dynamic = 1,
 		.ops = &geminilake_dmic_ops,
 	},
 	[GLK_DPCM_AUDIO_HDMI1_PB] = {
 		.name = "Glk HDMI Port1",
 		.stream_name = "Hdmi1",
 		.cpu_dai_name = "HDMI1 Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.dpcm_playback = 1,
 		.init = NULL,
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	[GLK_DPCM_AUDIO_HDMI2_PB] =	{
 		.name = "Glk HDMI Port2",
 		.stream_name = "Hdmi2",
 		.cpu_dai_name = "HDMI2 Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.dpcm_playback = 1,
 		.init = NULL,
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	[GLK_DPCM_AUDIO_HDMI3_PB] =	{
 		.name = "Glk HDMI Port3",
 		.stream_name = "Hdmi3",
 		.cpu_dai_name = "HDMI3 Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dpcm_playback = 1,
 		.init = NULL,
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	/* Back End DAI links */
 	{
 		/* SSP1 - Codec */
 		.name = "SSP1-Codec",
 		.id = 0,
 		.cpu_dai_name = "SSP1 Pin",
 		.platform_name = "0000:00:0e.0",
 		.no_pcm = 1,
 		.codec_name = MAXIM_DEV0_NAME,
 		.codec_dai_name = GLK_MAXIM_CODEC_DAI,
 		.dai_fmt = SND_SOC_DAIFMT_I2S |
 			SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_CBS_CFS,
 		.ignore_pmdown_time = 1,
 		.be_hw_params_fixup = geminilake_ssp_fixup,
 		.dpcm_playback = 1,
 	},
 	{
 		/* SSP2 - Codec */
 		.name = "SSP2-Codec",
 		.id = 1,
 		.cpu_dai_name = "SSP2 Pin",
 		.platform_name = "0000:00:0e.0",
 		.no_pcm = 1,
 		.codec_name = "i2c-10EC5682:00",
 		.codec_dai_name = GLK_REALTEK_CODEC_DAI,
 		.init = geminilake_rt5682_codec_init,
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_CBS_CFS,
 		.ignore_pmdown_time = 1,
 		.be_hw_params_fixup = geminilake_ssp_fixup,
 		.ops = &geminilake_rt5682_ops,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 	},
 	{
 		.name = "dmic01",
 		.id = 2,
 		.cpu_dai_name = "DMIC01 Pin",
 		.codec_name = "dmic-codec",
 		.codec_dai_name = "dmic-hifi",
 		.platform_name = "0000:00:0e.0",
 		.ignore_suspend = 1,
 		.be_hw_params_fixup = geminilake_dmic_fixup,
 		.dpcm_capture = 1,
 		.no_pcm = 1,
 	},
 	{
 		.name = "iDisp1",
 		.id = 3,
 		.cpu_dai_name = "iDisp1 Pin",
 		.codec_name = "ehdaudio0D2",
 		.codec_dai_name = "intel-hdmi-hifi1",
 		.platform_name = "0000:00:0e.0",
 		.init = geminilake_hdmi_init,
 		.dpcm_playback = 1,
 		.no_pcm = 1,
 	},
 	{
 		.name = "iDisp2",
 		.id = 4,
 		.cpu_dai_name = "iDisp2 Pin",
 		.codec_name = "ehdaudio0D2",
 		.codec_dai_name = "intel-hdmi-hifi2",
 		.platform_name = "0000:00:0e.0",
 		.init = geminilake_hdmi_init,
 		.dpcm_playback = 1,
 		.no_pcm = 1,
 	},
 	{
 		.name = "iDisp3",
 		.id = 5,
 		.cpu_dai_name = "iDisp3 Pin",
 		.codec_name = "ehdaudio0D2",
 		.codec_dai_name = "intel-hdmi-hifi3",
 		.platform_name = "0000:00:0e.0",
 		.init = geminilake_hdmi_init,
 		.dpcm_playback = 1,
 		.no_pcm = 1,
 	},
 };

 static int glk_card_late_probe(struct snd_soc_card *card)
 {
 	struct glk_card_private *ctx = snd_soc_card_get_drvdata(card);
 	struct snd_soc_component *component = NULL;
 	char jack_name[NAME_SIZE];
 	struct glk_hdmi_pcm *pcm;
 	int err = 0;
 	int i = 0;

 	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
 		component = pcm->codec_dai->component;
 		snprintf(jack_name, sizeof(jack_name),
 			"HDMI/DP, pcm=%d Jack", pcm->device);
 		err = snd_soc_card_jack_new(card, jack_name,
 					SND_JACK_AVOUT, &geminilake_hdmi[i],
 					NULL, 0);

 		if (err)
 			return err;

 		err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
 						&geminilake_hdmi[i]);
 		if (err < 0)
 			return err;

 		i++;
 	}

 	if (!component)
 		return -EINVAL;

 	return hdac_hdmi_jack_port_init(component, &card->dapm);
 }

 /* geminilake audio machine driver for SPT + RT5682 */
 static struct snd_soc_card glk_audio_card_rt5682_m98357a = {
 	.name = "glkrt5682max",
 	.owner = THIS_MODULE,
 	.dai_link = geminilake_dais,
 	.num_links = ARRAY_SIZE(geminilake_dais),
 	.controls = geminilake_controls,
 	.num_controls = ARRAY_SIZE(geminilake_controls),
 	.dapm_widgets = geminilake_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(geminilake_widgets),
 	.dapm_routes = geminilake_map,
 	.num_dapm_routes = ARRAY_SIZE(geminilake_map),
 	.fully_routed = true,
 	.late_probe = glk_card_late_probe,
 };

 static int geminilake_audio_probe(struct platform_device *pdev)
 {
 	struct glk_card_private *ctx;

 	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
 	if (!ctx)
 		return -ENOMEM;

 	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);

 	glk_audio_card_rt5682_m98357a.dev = &pdev->dev;
 	snd_soc_card_set_drvdata(&glk_audio_card_rt5682_m98357a, ctx);

 	return devm_snd_soc_register_card(&pdev->dev,
 					&glk_audio_card_rt5682_m98357a);
 }

 static const struct platform_device_id glk_board_ids[] = {
 	{
 		.name = "glk_rt5682_max98357a",
 		.driver_data =
 			(kernel_ulong_t)&glk_audio_card_rt5682_m98357a,
 	},
 	{ }
 };

 static struct platform_driver geminilake_audio = {
 	.probe = geminilake_audio_probe,
 	.driver = {
 		.name = "glk_rt5682_max98357a",
 		.pm = &snd_soc_pm_ops,
 	},
 	.id_table = glk_board_ids,
 };
 module_platform_driver(geminilake_audio)

 /* Module information */
 MODULE_DESCRIPTION("Geminilake Audio Machine driver-RT5682 & MAX98357A in I2S mode");
 MODULE_AUTHOR("Naveen Manohar <naveen.m@intel.com>");
 MODULE_AUTHOR("Harsha Priya <harshapriya.n@intel.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:glk_rt5682_max98357a");
	// SPDX-License-Identifier: GPL-2.0
	// Copyright(c) 2018 Intel Corporation.

	/*
	* Intel Geminilake I2S Machine Driver with MAX98357A & RT5682 Codecs
	*
	* Modified from:
	* Intel Apollolake I2S Machine driver
	*/

	#include <linux/input.h>
	#include <linux/module.h>
	#include <linux/platform_device.h>
	#include <sound/core.h>
	#include <sound/jack.h>
	#include <sound/pcm.h>
	#include <sound/pcm_params.h>
	#include <sound/soc.h>
	#include "../skylake/skl.h"
	#include "../../codecs/rt5682.h"
	#include "../../codecs/hdac_hdmi.h"

	/* The platform clock outputs 19.2Mhz clock to codec as I2S MCLK */
	#define GLK_PLAT_CLK_FREQ 19200000
	#define RT5682_PLL_FREQ (48000 * 512)
	#define GLK_REALTEK_CODEC_DAI "rt5682-aif1"
	#define GLK_MAXIM_CODEC_DAI "HiFi"
	#define MAXIM_DEV0_NAME "MX98357A:00"
	#define DUAL_CHANNEL 2
	#define QUAD_CHANNEL 4
	#define NAME_SIZE 32

	static struct snd_soc_jack geminilake_hdmi[3];

	struct glk_hdmi_pcm {
	struct list_head head;
	struct snd_soc_dai *codec_dai;
	int device;
	};

	struct glk_card_private {
	struct snd_soc_jack geminilake_headset;
	struct list_head hdmi_pcm_list;
	};

	enum {
	GLK_DPCM_AUDIO_PB = 0,
	GLK_DPCM_AUDIO_CP,
	GLK_DPCM_AUDIO_HS_PB,
	GLK_DPCM_AUDIO_ECHO_REF_CP,
	GLK_DPCM_AUDIO_REF_CP,
	GLK_DPCM_AUDIO_DMIC_CP,
	GLK_DPCM_AUDIO_HDMI1_PB,
	GLK_DPCM_AUDIO_HDMI2_PB,
	GLK_DPCM_AUDIO_HDMI3_PB,
	};

	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, GLK_REALTEK_CODEC_DAI);
	if (!codec_dai) {
	dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n");
	return -EIO;
	}

	if (SND_SOC_DAPM_EVENT_OFF(event)) {
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 0, 0);
	if (ret)
	dev_err(card->dev, "failed to stop sysclk: %d\n", ret);
	} else if (SND_SOC_DAPM_EVENT_ON(event)) {
	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK,
	GLK_PLAT_CLK_FREQ, RT5682_PLL_FREQ);
	if (ret < 0) {
	dev_err(card->dev, "can't set codec pll: %d\n", ret);
	return ret;
	}
	}

	if (ret)
	dev_err(card->dev, "failed to start internal clk: %d\n", ret);

	return ret;
	}

	static const struct snd_kcontrol_new geminilake_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Spk"),
	};

	static const struct snd_soc_dapm_widget geminilake_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_SPK("Spk", NULL),
	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
	SND_SOC_DAPM_SPK("HDMI1", NULL),
	SND_SOC_DAPM_SPK("HDMI2", NULL),
	SND_SOC_DAPM_SPK("HDMI3", NULL),
	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
	platform_clock_control, SND_SOC_DAPM_PRE_PMU \|
	SND_SOC_DAPM_POST_PMD),
	};

	static const struct snd_soc_dapm_route geminilake_map[] = {
	/* HP jack connectors - unknown if we have jack detection */
	{ "Headphone Jack", NULL, "Platform Clock" },
	{ "Headphone Jack", NULL, "HPOL" },
	{ "Headphone Jack", NULL, "HPOR" },

	/* speaker */
	{ "Spk", NULL, "Speaker" },

	/* other jacks */
	{ "Headset Mic", NULL, "Platform Clock" },
	{ "IN1P", NULL, "Headset Mic" },

	/* digital mics */
	{ "DMic", NULL, "SoC DMIC" },

	/* CODEC BE connections */
	{ "HiFi Playback", NULL, "ssp1 Tx" },
	{ "ssp1 Tx", NULL, "codec0_out" },

	{ "AIF1 Playback", NULL, "ssp2 Tx" },
	{ "ssp2 Tx", NULL, "codec1_out" },

	{ "codec0_in", NULL, "ssp2 Rx" },
	{ "ssp2 Rx", NULL, "AIF1 Capture" },

	{ "HDMI1", NULL, "hif5-0 Output" },
	{ "HDMI2", NULL, "hif6-0 Output" },
	{ "HDMI2", NULL, "hif7-0 Output" },

	{ "hifi3", NULL, "iDisp3 Tx" },
	{ "iDisp3 Tx", NULL, "iDisp3_out" },
	{ "hifi2", NULL, "iDisp2 Tx" },
	{ "iDisp2 Tx", NULL, "iDisp2_out" },
	{ "hifi1", NULL, "iDisp1 Tx" },
	{ "iDisp1 Tx", NULL, "iDisp1_out" },

	/* DMIC */
	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
	{ "DMIC01 Rx", NULL, "DMIC AIF" },
	};

	static int geminilake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
	struct snd_pcm_hw_params *params)
	{
	struct snd_interval *rate = hw_param_interval(params,
	SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels = hw_param_interval(params,
	SNDRV_PCM_HW_PARAM_CHANNELS);
	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

	/* The ADSP will convert the FE rate to 48k, stereo */
	rate->min = rate->max = 48000;
	channels->min = channels->max = DUAL_CHANNEL;

	/* set SSP to 24 bit */
	snd_mask_none(fmt);
	snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);

	return 0;
	}

	static int geminilake_rt5682_codec_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
	struct snd_soc_component *component = rtd->codec_dai->component;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_jack *jack;
	int ret;

	/* Configure sysclk for codec */
	ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1,
	RT5682_PLL_FREQ, SND_SOC_CLOCK_IN);
	if (ret < 0)
	dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);

	/*
	* Headset buttons map to the google Reference headset.
	* These can be configured by userspace.
	*/
	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
	SND_JACK_HEADSET \| SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	SND_JACK_BTN_2 \| SND_JACK_BTN_3 \| SND_JACK_LINEOUT,
	&ctx->geminilake_headset, NULL, 0);
	if (ret) {
	dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
	return ret;
	}

	jack = &ctx->geminilake_headset;

	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
	ret = snd_soc_component_set_jack(component, jack, NULL);

	if (ret) {
	dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
	return ret;
	}

	return ret;
	};

	static int geminilake_rt5682_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_dai *codec_dai = rtd->codec_dai;
	int ret;

	/* Set valid bitmask & configuration for I2S in 24 bit */
	ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x0, 0x0, 2, 24);
	if (ret < 0) {
	dev_err(rtd->dev, "set TDM slot err:%d\n", ret);
	return ret;
	}

	return ret;
	}

	static struct snd_soc_ops geminilake_rt5682_ops = {
	.hw_params = geminilake_rt5682_hw_params,
	};

	static int geminilake_hdmi_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct glk_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
	struct snd_soc_dai *dai = rtd->codec_dai;
	struct glk_hdmi_pcm *pcm;

	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
	if (!pcm)
	return -ENOMEM;

	pcm->device = GLK_DPCM_AUDIO_HDMI1_PB + dai->id;
	pcm->codec_dai = dai;

	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);

	return 0;
	}

	static int geminilake_rt5682_fe_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_component *component = rtd->cpu_dai->component;
	struct snd_soc_dapm_context *dapm;
	int ret;

	dapm = snd_soc_component_get_dapm(component);
	ret = snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
	if (ret) {
	dev_err(rtd->dev, "Ref Cap ignore suspend failed %d\n", ret);
	return ret;
	}

	return ret;
	}

	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[] = {
	DUAL_CHANNEL,
	};

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

	static unsigned int channels_quad[] = {
	QUAD_CHANNEL,
	};

	static struct snd_pcm_hw_constraint_list constraints_channels_quad = {
	.count = ARRAY_SIZE(channels_quad),
	.list = channels_quad,
	.mask = 0,
	};

	static int geminilake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
	struct snd_pcm_hw_params *params)
	{
	struct snd_interval *channels = hw_param_interval(params,
	SNDRV_PCM_HW_PARAM_CHANNELS);

	/*
	* set BE channel constraint as user FE channels
	*/
	channels->min = channels->max = 4;

	return 0;
	}

	static int geminilake_dmic_startup(struct snd_pcm_substream *substream)
	{
	struct snd_pcm_runtime *runtime = substream->runtime;

	runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL;
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
	&constraints_channels_quad);

	return snd_pcm_hw_constraint_list(substream->runtime, 0,
	SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
	}

	static const struct snd_soc_ops geminilake_dmic_ops = {
	.startup = geminilake_dmic_startup,
	};

	static const unsigned int rates_16000[] = {
	16000,
	};

	static const struct snd_pcm_hw_constraint_list constraints_16000 = {
	.count = ARRAY_SIZE(rates_16000),
	.list = rates_16000,
	};

	static int geminilake_refcap_startup(struct snd_pcm_substream *substream)
	{
	return snd_pcm_hw_constraint_list(substream->runtime, 0,
	SNDRV_PCM_HW_PARAM_RATE,
	&constraints_16000);
	};

	static const struct snd_soc_ops geminilake_refcap_ops = {
	.startup = geminilake_refcap_startup,
	};

	/* geminilake digital audio interface glue - connects codec <--> CPU */
	static struct snd_soc_dai_link geminilake_dais[] = {
	/* Front End DAI links */
	[GLK_DPCM_AUDIO_PB] = {
	.name = "Glk Audio Port",
	.stream_name = "Audio",
	.cpu_dai_name = "System Pin",
	.platform_name = "0000:00:0e.0",
	.dynamic = 1,
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.nonatomic = 1,
	.init = geminilake_rt5682_fe_init,
	.trigger = {
	SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dpcm_playback = 1,
	},
	[GLK_DPCM_AUDIO_CP] = {
	.name = "Glk Audio Capture Port",
	.stream_name = "Audio Record",
	.cpu_dai_name = "System Pin",
	.platform_name = "0000:00:0e.0",
	.dynamic = 1,
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.nonatomic = 1,
	.trigger = {
	SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dpcm_capture = 1,
	},
	[GLK_DPCM_AUDIO_HS_PB] = {
	.name = "Glk Audio Headset Playback",
	.stream_name = "Headset Audio",
	.cpu_dai_name = "System Pin2",
	.platform_name = "0000:00:0e.0",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.dpcm_playback = 1,
	.nonatomic = 1,
	.dynamic = 1,
	},
	[GLK_DPCM_AUDIO_ECHO_REF_CP] = {
	.name = "Glk Audio Echo Reference cap",
	.stream_name = "Echoreference Capture",
	.cpu_dai_name = "Echoref Pin",
	.platform_name = "0000:00:0e.0",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.init = NULL,
	.capture_only = 1,
	.nonatomic = 1,
	},
	[GLK_DPCM_AUDIO_REF_CP] = {
	.name = "Glk Audio Reference cap",
	.stream_name = "Refcap",
	.cpu_dai_name = "Reference Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.init = NULL,
	.dpcm_capture = 1,
	.nonatomic = 1,
	.dynamic = 1,
	.ops = &geminilake_refcap_ops,
	},
	[GLK_DPCM_AUDIO_DMIC_CP] = {
	.name = "Glk Audio DMIC cap",
	.stream_name = "dmiccap",
	.cpu_dai_name = "DMIC Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.init = NULL,
	.dpcm_capture = 1,
	.nonatomic = 1,
	.dynamic = 1,
	.ops = &geminilake_dmic_ops,
	},
	[GLK_DPCM_AUDIO_HDMI1_PB] = {
	.name = "Glk HDMI Port1",
	.stream_name = "Hdmi1",
	.cpu_dai_name = "HDMI1 Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.dpcm_playback = 1,
	.init = NULL,
	.trigger = {
	SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.nonatomic = 1,
	.dynamic = 1,
	},
	[GLK_DPCM_AUDIO_HDMI2_PB] = {
	.name = "Glk HDMI Port2",
	.stream_name = "Hdmi2",
	.cpu_dai_name = "HDMI2 Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.dpcm_playback = 1,
	.init = NULL,
	.trigger = {
	SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.nonatomic = 1,
	.dynamic = 1,
	},
	[GLK_DPCM_AUDIO_HDMI3_PB] = {
	.name = "Glk HDMI Port3",
	.stream_name = "Hdmi3",
	.cpu_dai_name = "HDMI3 Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.trigger = {
	SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dpcm_playback = 1,
	.init = NULL,
	.nonatomic = 1,
	.dynamic = 1,
	},
	/* Back End DAI links */
	{
	/* SSP1 - Codec */
	.name = "SSP1-Codec",
	.id = 0,
	.cpu_dai_name = "SSP1 Pin",
	.platform_name = "0000:00:0e.0",
	.no_pcm = 1,
	.codec_name = MAXIM_DEV0_NAME,
	.codec_dai_name = GLK_MAXIM_CODEC_DAI,
	.dai_fmt = SND_SOC_DAIFMT_I2S \|
	SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ignore_pmdown_time = 1,
	.be_hw_params_fixup = geminilake_ssp_fixup,
	.dpcm_playback = 1,
	},
	{
	/* SSP2 - Codec */
	.name = "SSP2-Codec",
	.id = 1,
	.cpu_dai_name = "SSP2 Pin",
	.platform_name = "0000:00:0e.0",
	.no_pcm = 1,
	.codec_name = "i2c-10EC5682:00",
	.codec_dai_name = GLK_REALTEK_CODEC_DAI,
	.init = geminilake_rt5682_codec_init,
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ignore_pmdown_time = 1,
	.be_hw_params_fixup = geminilake_ssp_fixup,
	.ops = &geminilake_rt5682_ops,
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	},
	{
	.name = "dmic01",
	.id = 2,
	.cpu_dai_name = "DMIC01 Pin",
	.codec_name = "dmic-codec",
	.codec_dai_name = "dmic-hifi",
	.platform_name = "0000:00:0e.0",
	.ignore_suspend = 1,
	.be_hw_params_fixup = geminilake_dmic_fixup,
	.dpcm_capture = 1,
	.no_pcm = 1,
	},
	{
	.name = "iDisp1",
	.id = 3,
	.cpu_dai_name = "iDisp1 Pin",
	.codec_name = "ehdaudio0D2",
	.codec_dai_name = "intel-hdmi-hifi1",
	.platform_name = "0000:00:0e.0",
	.init = geminilake_hdmi_init,
	.dpcm_playback = 1,
	.no_pcm = 1,
	},
	{
	.name = "iDisp2",
	.id = 4,
	.cpu_dai_name = "iDisp2 Pin",
	.codec_name = "ehdaudio0D2",
	.codec_dai_name = "intel-hdmi-hifi2",
	.platform_name = "0000:00:0e.0",
	.init = geminilake_hdmi_init,
	.dpcm_playback = 1,
	.no_pcm = 1,
	},
	{
	.name = "iDisp3",
	.id = 5,
	.cpu_dai_name = "iDisp3 Pin",
	.codec_name = "ehdaudio0D2",
	.codec_dai_name = "intel-hdmi-hifi3",
	.platform_name = "0000:00:0e.0",
	.init = geminilake_hdmi_init,
	.dpcm_playback = 1,
	.no_pcm = 1,
	},
	};

	static int glk_card_late_probe(struct snd_soc_card *card)
	{
	struct glk_card_private *ctx = snd_soc_card_get_drvdata(card);
	struct snd_soc_component *component = NULL;
	char jack_name[NAME_SIZE];
	struct glk_hdmi_pcm *pcm;
	int err = 0;
	int i = 0;

	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
	component = pcm->codec_dai->component;
	snprintf(jack_name, sizeof(jack_name),
	"HDMI/DP, pcm=%d Jack", pcm->device);
	err = snd_soc_card_jack_new(card, jack_name,
	SND_JACK_AVOUT, &geminilake_hdmi[i],
	NULL, 0);

	if (err)
	return err;

	err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
	&geminilake_hdmi[i]);
	if (err < 0)
	return err;

	i++;
	}

	if (!component)
	return -EINVAL;

	return hdac_hdmi_jack_port_init(component, &card->dapm);
	}

	/* geminilake audio machine driver for SPT + RT5682 */
	static struct snd_soc_card glk_audio_card_rt5682_m98357a = {
	.name = "glkrt5682max",
	.owner = THIS_MODULE,
	.dai_link = geminilake_dais,
	.num_links = ARRAY_SIZE(geminilake_dais),
	.controls = geminilake_controls,
	.num_controls = ARRAY_SIZE(geminilake_controls),
	.dapm_widgets = geminilake_widgets,
	.num_dapm_widgets = ARRAY_SIZE(geminilake_widgets),
	.dapm_routes = geminilake_map,
	.num_dapm_routes = ARRAY_SIZE(geminilake_map),
	.fully_routed = true,
	.late_probe = glk_card_late_probe,
	};

	static int geminilake_audio_probe(struct platform_device *pdev)
	{
	struct glk_card_private *ctx;

	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
	if (!ctx)
	return -ENOMEM;

	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);

	glk_audio_card_rt5682_m98357a.dev = &pdev->dev;
	snd_soc_card_set_drvdata(&glk_audio_card_rt5682_m98357a, ctx);

	return devm_snd_soc_register_card(&pdev->dev,
	&glk_audio_card_rt5682_m98357a);
	}

	static const struct platform_device_id glk_board_ids[] = {
	{
	.name = "glk_rt5682_max98357a",
	.driver_data =
	(kernel_ulong_t)&glk_audio_card_rt5682_m98357a,
	},
	{ }
	};

	static struct platform_driver geminilake_audio = {
	.probe = geminilake_audio_probe,
	.driver = {
	.name = "glk_rt5682_max98357a",
	.pm = &snd_soc_pm_ops,
	},
	.id_table = glk_board_ids,
	};
	module_platform_driver(geminilake_audio)

	/* Module information */
	MODULE_DESCRIPTION("Geminilake Audio Machine driver-RT5682 & MAX98357A in I2S mode");
	MODULE_AUTHOR("Naveen Manohar <naveen.m@intel.com>");
	MODULE_AUTHOR("Harsha Priya <harshapriya.n@intel.com>");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:glk_rt5682_max98357a");