sound/soc/qcom/sc7280.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-only
 //
 // Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
 //
 // ALSA SoC Machine driver for sc7280

 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <sound/core.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <sound/rt5682s.h>
 #include <linux/soundwire/sdw.h>

 #include "../codecs/rt5682.h"
 #include "../codecs/rt5682s.h"
 #include "common.h"
 #include "lpass.h"
 #include "qdsp6/q6afe.h"

 #define DEFAULT_MCLK_RATE              19200000
 #define RT5682_PLL_FREQ (48000 * 512)
 #define MI2S_BCLK_RATE		1536000

 struct sc7280_snd_data {
 	struct snd_soc_card card;
 	struct sdw_stream_runtime *sruntime[LPASS_MAX_PORTS];
 	u32 pri_mi2s_clk_count;
 	struct snd_soc_jack hs_jack;
 	struct snd_soc_jack hdmi_jack;
 	bool jack_setup;
 	bool stream_prepared[LPASS_MAX_PORTS];
 };

 static void sc7280_jack_free(struct snd_jack *jack)
 {
 	struct snd_soc_component *component = jack->private_data;

 	snd_soc_component_set_jack(component, NULL, NULL);
 }

 static int sc7280_headset_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
 	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct snd_soc_component *component = codec_dai->component;
 	struct snd_jack *jack;
 	int rval, i;

 	if (!pdata->jack_setup) {
 		rval = snd_soc_card_jack_new(card, "Headset Jack",
 					     SND_JACK_HEADSET | SND_JACK_LINEOUT |
 					     SND_JACK_MECHANICAL |
 					     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 					     SND_JACK_BTN_2 | SND_JACK_BTN_3 |
 					     SND_JACK_BTN_4 | SND_JACK_BTN_5,
 					     &pdata->hs_jack);

 		if (rval < 0) {
 			dev_err(card->dev, "Unable to add Headset Jack\n");
 			return rval;
 		}

 		jack = pdata->hs_jack.jack;

 		snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 		snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 		snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 		snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);

 		jack->private_data = component;
 		jack->private_free = sc7280_jack_free;
 		pdata->jack_setup = true;
 	}
 	switch (cpu_dai->id) {
 	case MI2S_PRIMARY:
 	case LPASS_CDC_DMA_RX0:
 	case LPASS_CDC_DMA_TX3:
 	case TX_CODEC_DMA_TX_3:
 		for_each_rtd_codec_dais(rtd, i, codec_dai) {
 			rval = snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
 			if (rval != 0 && rval != -ENOTSUPP) {
 				dev_err(card->dev, "Failed to set jack: %d\n", rval);
 				return rval;
 			}
 		}
 		break;
 	default:
 		break;
 	}

 	return 0;
 }

 static int sc7280_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
 	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_component *component = codec_dai->component;
 	struct snd_jack *jack;
 	int rval;

 	rval = snd_soc_card_jack_new(card, "HDMI Jack",	SND_JACK_LINEOUT,
 				     &pdata->hdmi_jack);

 	if (rval < 0) {
 		dev_err(card->dev, "Unable to add HDMI Jack\n");
 		return rval;
 	}

 	jack = pdata->hdmi_jack.jack;
 	jack->private_data = component;
 	jack->private_free = sc7280_jack_free;

 	return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
 }

 static int sc7280_rt5682_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_card *card = rtd->card;
 	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
 	int ret;

 	if (++data->pri_mi2s_clk_count == 1) {
 		snd_soc_dai_set_sysclk(cpu_dai,
 			LPASS_MCLK0,
 			DEFAULT_MCLK_RATE,
 			SNDRV_PCM_STREAM_PLAYBACK);
 	}
 	snd_soc_dai_set_fmt(codec_dai,
 				SND_SOC_DAIFMT_CBC_CFC |
 				SND_SOC_DAIFMT_NB_NF |
 				SND_SOC_DAIFMT_I2S);

 	ret = snd_soc_dai_set_pll(codec_dai, RT5682S_PLL2, RT5682S_PLL_S_MCLK,
 					DEFAULT_MCLK_RATE, RT5682_PLL_FREQ);
 	if (ret) {
 		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_dai_set_sysclk(codec_dai, RT5682S_SCLK_S_PLL2,
 					RT5682_PLL_FREQ,
 					SND_SOC_CLOCK_IN);

 	if (ret) {
 		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
 			ret);
 		return ret;
 	}

 	return 0;
 }

 static int sc7280_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

 	switch (cpu_dai->id) {
 	case MI2S_PRIMARY:
 	case LPASS_CDC_DMA_TX3:
 	case TX_CODEC_DMA_TX_3:
 		return sc7280_headset_init(rtd);
 	case LPASS_CDC_DMA_RX0:
 	case LPASS_CDC_DMA_VA_TX0:
 	case MI2S_SECONDARY:
 	case RX_CODEC_DMA_RX_0:
 	case SECONDARY_MI2S_RX:
 	case VA_CODEC_DMA_TX_0:
 		return 0;
 	case LPASS_DP_RX:
 		return sc7280_hdmi_init(rtd);
 	default:
 		dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
 	}

 	return -EINVAL;
 }

 static int sc7280_snd_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai;
 	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
 	struct sdw_stream_runtime *sruntime;
 	int i;

 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000);

 	switch (cpu_dai->id) {
 	case LPASS_CDC_DMA_TX3:
 	case LPASS_CDC_DMA_RX0:
 	case RX_CODEC_DMA_RX_0:
 	case SECONDARY_MI2S_RX:
 	case TX_CODEC_DMA_TX_3:
 	case VA_CODEC_DMA_TX_0:
 		for_each_rtd_codec_dais(rtd, i, codec_dai) {
 			sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
 			if (sruntime != ERR_PTR(-ENOTSUPP))
 				pdata->sruntime[cpu_dai->id] = sruntime;
 		}
 		break;
 	}

 	return 0;
 }

 static int sc7280_snd_swr_prepare(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
 	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
 	int ret;

 	if (!sruntime)
 		return 0;

 	if (data->stream_prepared[cpu_dai->id]) {
 		sdw_disable_stream(sruntime);
 		sdw_deprepare_stream(sruntime);
 		data->stream_prepared[cpu_dai->id] = false;
 	}

 	ret = sdw_prepare_stream(sruntime);
 	if (ret)
 		return ret;

 	ret = sdw_enable_stream(sruntime);
 	if (ret) {
 		sdw_deprepare_stream(sruntime);
 		return ret;
 	}
 	data->stream_prepared[cpu_dai->id] = true;

 	return ret;
 }

 static int sc7280_snd_prepare(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

 	switch (cpu_dai->id) {
 	case LPASS_CDC_DMA_RX0:
 	case LPASS_CDC_DMA_TX3:
 	case RX_CODEC_DMA_RX_0:
 	case TX_CODEC_DMA_TX_3:
 	case VA_CODEC_DMA_TX_0:
 		return sc7280_snd_swr_prepare(substream);
 	default:
 		break;
 	}

 	return 0;
 }

 static int sc7280_snd_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
 	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];

 	switch (cpu_dai->id) {
 	case LPASS_CDC_DMA_RX0:
 	case LPASS_CDC_DMA_TX3:
 	case RX_CODEC_DMA_RX_0:
 	case TX_CODEC_DMA_TX_3:
 	case VA_CODEC_DMA_TX_0:
 		if (sruntime && data->stream_prepared[cpu_dai->id]) {
 			sdw_disable_stream(sruntime);
 			sdw_deprepare_stream(sruntime);
 			data->stream_prepared[cpu_dai->id] = false;
 		}
 		break;
 	default:
 		break;
 	}
 	return 0;
 }

 static void sc7280_snd_shutdown(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_card *card = rtd->card;
 	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

 	switch (cpu_dai->id) {
 	case MI2S_PRIMARY:
 		if (--data->pri_mi2s_clk_count == 0) {
 			snd_soc_dai_set_sysclk(cpu_dai,
 					       LPASS_MCLK0,
 					       0,
 					       SNDRV_PCM_STREAM_PLAYBACK);
 		}
 		break;
 	case SECONDARY_MI2S_RX:
 		snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
 					       0, SNDRV_PCM_STREAM_PLAYBACK);
 		break;
 	default:
 		break;
 	}
 }

 static int sc7280_snd_startup(struct snd_pcm_substream *substream)
 {
 	unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
 	unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	int ret = 0;

 	switch (cpu_dai->id) {
 	case MI2S_PRIMARY:
 		ret = sc7280_rt5682_init(rtd);
 		break;
 	case SECONDARY_MI2S_RX:
 		codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;

 		snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
 			MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);

 		snd_soc_dai_set_fmt(cpu_dai, fmt);
 		snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
 		break;
 	default:
 		break;
 	}
 	return ret;
 }

 static const struct snd_soc_ops sc7280_ops = {
 	.startup = sc7280_snd_startup,
 	.hw_params = sc7280_snd_hw_params,
 	.hw_free = sc7280_snd_hw_free,
 	.prepare = sc7280_snd_prepare,
 	.shutdown = sc7280_snd_shutdown,
 };

 static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 };

 static int sc7280_snd_platform_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card;
 	struct sc7280_snd_data *data;
 	struct device *dev = &pdev->dev;
 	struct snd_soc_dai_link *link;
 	int ret, i;

 	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;

 	card = &data->card;
 	snd_soc_card_set_drvdata(card, data);

 	card->owner = THIS_MODULE;
 	card->driver_name = "SC7280";
 	card->dev = dev;

 	card->dapm_widgets = sc7280_snd_widgets;
 	card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets);

 	ret = qcom_snd_parse_of(card);
 	if (ret)
 		return ret;

 	for_each_card_prelinks(card, i, link) {
 		link->init = sc7280_init;
 		link->ops = &sc7280_ops;
 	}

 	return devm_snd_soc_register_card(dev, card);
 }

 static const struct of_device_id sc7280_snd_device_id[]  = {
 	{ .compatible = "google,sc7280-herobrine" },
 	{}
 };
 MODULE_DEVICE_TABLE(of, sc7280_snd_device_id);

 static struct platform_driver sc7280_snd_driver = {
 	.probe = sc7280_snd_platform_probe,
 	.driver = {
 		.name = "msm-snd-sc7280",
 		.of_match_table = sc7280_snd_device_id,
 		.pm = &snd_soc_pm_ops,
 	},
 };
 module_platform_driver(sc7280_snd_driver);

 MODULE_DESCRIPTION("sc7280 ASoC Machine Driver");
 MODULE_LICENSE("GPL");
	// SPDX-License-Identifier: GPL-2.0-only
	//
	// Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
	//
	// ALSA SoC Machine driver for sc7280

	#include <linux/input.h>
	#include <linux/module.h>
	#include <linux/of_device.h>
	#include <linux/platform_device.h>
	#include <sound/core.h>
	#include <sound/jack.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>
	#include <sound/rt5682s.h>
	#include <linux/soundwire/sdw.h>

	#include "../codecs/rt5682.h"
	#include "../codecs/rt5682s.h"
	#include "common.h"
	#include "lpass.h"
	#include "qdsp6/q6afe.h"

	#define DEFAULT_MCLK_RATE 19200000
	#define RT5682_PLL_FREQ (48000 * 512)
	#define MI2S_BCLK_RATE 1536000

	struct sc7280_snd_data {
	struct snd_soc_card card;
	struct sdw_stream_runtime *sruntime[LPASS_MAX_PORTS];
	u32 pri_mi2s_clk_count;
	struct snd_soc_jack hs_jack;
	struct snd_soc_jack hdmi_jack;
	bool jack_setup;
	bool stream_prepared[LPASS_MAX_PORTS];
	};

	static void sc7280_jack_free(struct snd_jack *jack)
	{
	struct snd_soc_component *component = jack->private_data;

	snd_soc_component_set_jack(component, NULL, NULL);
	}

	static int sc7280_headset_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct snd_soc_component *component = codec_dai->component;
	struct snd_jack *jack;
	int rval, i;

	if (!pdata->jack_setup) {
	rval = snd_soc_card_jack_new(card, "Headset Jack",
	SND_JACK_HEADSET \| SND_JACK_LINEOUT \|
	SND_JACK_MECHANICAL \|
	SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	SND_JACK_BTN_2 \| SND_JACK_BTN_3 \|
	SND_JACK_BTN_4 \| SND_JACK_BTN_5,
	&pdata->hs_jack);

	if (rval < 0) {
	dev_err(card->dev, "Unable to add Headset Jack\n");
	return rval;
	}

	jack = pdata->hs_jack.jack;

	snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
	snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
	snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
	snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);

	jack->private_data = component;
	jack->private_free = sc7280_jack_free;
	pdata->jack_setup = true;
	}
	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_TX3:
	case TX_CODEC_DMA_TX_3:
	for_each_rtd_codec_dais(rtd, i, codec_dai) {
	rval = snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
	if (rval != 0 && rval != -ENOTSUPP) {
	dev_err(card->dev, "Failed to set jack: %d\n", rval);
	return rval;
	}
	}
	break;
	default:
	break;
	}

	return 0;
	}

	static int sc7280_hdmi_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_component *component = codec_dai->component;
	struct snd_jack *jack;
	int rval;

	rval = snd_soc_card_jack_new(card, "HDMI Jack", SND_JACK_LINEOUT,
	&pdata->hdmi_jack);

	if (rval < 0) {
	dev_err(card->dev, "Unable to add HDMI Jack\n");
	return rval;
	}

	jack = pdata->hdmi_jack.jack;
	jack->private_data = component;
	jack->private_free = sc7280_jack_free;

	return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
	}

	static int sc7280_rt5682_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
	int ret;

	if (++data->pri_mi2s_clk_count == 1) {
	snd_soc_dai_set_sysclk(cpu_dai,
	LPASS_MCLK0,
	DEFAULT_MCLK_RATE,
	SNDRV_PCM_STREAM_PLAYBACK);
	}
	snd_soc_dai_set_fmt(codec_dai,
	SND_SOC_DAIFMT_CBC_CFC \|
	SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_I2S);

	ret = snd_soc_dai_set_pll(codec_dai, RT5682S_PLL2, RT5682S_PLL_S_MCLK,
	DEFAULT_MCLK_RATE, RT5682_PLL_FREQ);
	if (ret) {
	dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
	return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai, RT5682S_SCLK_S_PLL2,
	RT5682_PLL_FREQ,
	SND_SOC_CLOCK_IN);

	if (ret) {
	dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
	ret);
	return ret;
	}

	return 0;
	}

	static int sc7280_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
	case LPASS_CDC_DMA_TX3:
	case TX_CODEC_DMA_TX_3:
	return sc7280_headset_init(rtd);
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_VA_TX0:
	case MI2S_SECONDARY:
	case RX_CODEC_DMA_RX_0:
	case SECONDARY_MI2S_RX:
	case VA_CODEC_DMA_TX_0:
	return 0;
	case LPASS_DP_RX:
	return sc7280_hdmi_init(rtd);
	default:
	dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
	}

	return -EINVAL;
	}

	static int sc7280_snd_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai;
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
	struct sdw_stream_runtime *sruntime;
	int i;

	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000);

	switch (cpu_dai->id) {
	case LPASS_CDC_DMA_TX3:
	case LPASS_CDC_DMA_RX0:
	case RX_CODEC_DMA_RX_0:
	case SECONDARY_MI2S_RX:
	case TX_CODEC_DMA_TX_3:
	case VA_CODEC_DMA_TX_0:
	for_each_rtd_codec_dais(rtd, i, codec_dai) {
	sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
	if (sruntime != ERR_PTR(-ENOTSUPP))
	pdata->sruntime[cpu_dai->id] = sruntime;
	}
	break;
	}

	return 0;
	}

	static int sc7280_snd_swr_prepare(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
	int ret;

	if (!sruntime)
	return 0;

	if (data->stream_prepared[cpu_dai->id]) {
	sdw_disable_stream(sruntime);
	sdw_deprepare_stream(sruntime);
	data->stream_prepared[cpu_dai->id] = false;
	}

	ret = sdw_prepare_stream(sruntime);
	if (ret)
	return ret;

	ret = sdw_enable_stream(sruntime);
	if (ret) {
	sdw_deprepare_stream(sruntime);
	return ret;
	}
	data->stream_prepared[cpu_dai->id] = true;

	return ret;
	}

	static int sc7280_snd_prepare(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

	switch (cpu_dai->id) {
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_TX3:
	case RX_CODEC_DMA_RX_0:
	case TX_CODEC_DMA_TX_3:
	case VA_CODEC_DMA_TX_0:
	return sc7280_snd_swr_prepare(substream);
	default:
	break;
	}

	return 0;
	}

	static int sc7280_snd_hw_free(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
	const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];

	switch (cpu_dai->id) {
	case LPASS_CDC_DMA_RX0:
	case LPASS_CDC_DMA_TX3:
	case RX_CODEC_DMA_RX_0:
	case TX_CODEC_DMA_TX_3:
	case VA_CODEC_DMA_TX_0:
	if (sruntime && data->stream_prepared[cpu_dai->id]) {
	sdw_disable_stream(sruntime);
	sdw_deprepare_stream(sruntime);
	data->stream_prepared[cpu_dai->id] = false;
	}
	break;
	default:
	break;
	}
	return 0;
	}

	static void sc7280_snd_shutdown(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *card = rtd->card;
	struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
	if (--data->pri_mi2s_clk_count == 0) {
	snd_soc_dai_set_sysclk(cpu_dai,
	LPASS_MCLK0,
	0,
	SNDRV_PCM_STREAM_PLAYBACK);
	}
	break;
	case SECONDARY_MI2S_RX:
	snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
	0, SNDRV_PCM_STREAM_PLAYBACK);
	break;
	default:
	break;
	}
	}

	static int sc7280_snd_startup(struct snd_pcm_substream *substream)
	{
	unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
	unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	int ret = 0;

	switch (cpu_dai->id) {
	case MI2S_PRIMARY:
	ret = sc7280_rt5682_init(rtd);
	break;
	case SECONDARY_MI2S_RX:
	codec_dai_fmt \|= SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_I2S;

	snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
	MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);

	snd_soc_dai_set_fmt(cpu_dai, fmt);
	snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
	break;
	default:
	break;
	}
	return ret;
	}

	static const struct snd_soc_ops sc7280_ops = {
	.startup = sc7280_snd_startup,
	.hw_params = sc7280_snd_hw_params,
	.hw_free = sc7280_snd_hw_free,
	.prepare = sc7280_snd_prepare,
	.shutdown = sc7280_snd_shutdown,
	};

	static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	};

	static int sc7280_snd_platform_probe(struct platform_device *pdev)
	{
	struct snd_soc_card *card;
	struct sc7280_snd_data *data;
	struct device *dev = &pdev->dev;
	struct snd_soc_dai_link *link;
	int ret, i;

	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
	if (!data)
	return -ENOMEM;

	card = &data->card;
	snd_soc_card_set_drvdata(card, data);

	card->owner = THIS_MODULE;
	card->driver_name = "SC7280";
	card->dev = dev;

	card->dapm_widgets = sc7280_snd_widgets;
	card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets);

	ret = qcom_snd_parse_of(card);
	if (ret)
	return ret;

	for_each_card_prelinks(card, i, link) {
	link->init = sc7280_init;
	link->ops = &sc7280_ops;
	}

	return devm_snd_soc_register_card(dev, card);
	}

	static const struct of_device_id sc7280_snd_device_id[] = {
	{ .compatible = "google,sc7280-herobrine" },
	{}
	};
	MODULE_DEVICE_TABLE(of, sc7280_snd_device_id);

	static struct platform_driver sc7280_snd_driver = {
	.probe = sc7280_snd_platform_probe,
	.driver = {
	.name = "msm-snd-sc7280",
	.of_match_table = sc7280_snd_device_id,
	.pm = &snd_soc_pm_ops,
	},
	};
	module_platform_driver(sc7280_snd_driver);

	MODULE_DESCRIPTION("sc7280 ASoC Machine Driver");
	MODULE_LICENSE("GPL");