sound/soc/amd/acp-da7219-max98357a.c - linux - Git at Google

 /*
  * Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec
  *
  * Copyright 2017 Advanced Micro Devices, Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  */

 #include <sound/core.h>
 #include <sound/soc.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc-dapm.h>
 #include <sound/jack.h>
 #include <linux/clk.h>
 #include <linux/gpio.h>
 #include <linux/module.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/driver.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
 #include <linux/acpi.h>

 #include "acp.h"
 #include "../codecs/da7219.h"
 #include "../codecs/da7219-aad.h"

 #define CZ_PLAT_CLK 48000000
 #define DUAL_CHANNEL		2

 static struct snd_soc_jack cz_jack;
 static struct clk *da7219_dai_wclk;
 static struct clk *da7219_dai_bclk;
 extern bool bt_uart_enable;

 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
 {
 	int ret;
 	struct snd_soc_card *card = rtd->card;
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_component *component = codec_dai->component;

 	dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);

 	ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
 				     CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
 	if (ret < 0) {
 		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
 				  CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
 	if (ret < 0) {
 		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 		return ret;
 	}

 	da7219_dai_wclk = clk_get(component->dev, "da7219-dai-wclk");
 	da7219_dai_bclk = clk_get(component->dev, "da7219-dai-bclk");

 	ret = snd_soc_card_jack_new(card, "Headset Jack",
 				SND_JACK_HEADSET | SND_JACK_LINEOUT |
 				SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 				SND_JACK_BTN_2 | SND_JACK_BTN_3,
 				&cz_jack, NULL, 0);
 	if (ret) {
 		dev_err(card->dev, "HP jack creation failed %d\n", ret);
 		return ret;
 	}

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

 	da7219_aad_jack_det(component, &cz_jack);

 	return 0;
 }

 static int da7219_clk_enable(struct snd_pcm_substream *substream)
 {
 	int ret = 0;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;

 	/*
 	 * Set wclk to 48000 because the rate constraint of this driver is
 	 * 48000. ADAU7002 spec: "The ADAU7002 requires a BCLK rate that is
 	 * minimum of 64x the LRCLK sample rate." DA7219 is the only clk
 	 * source so for all codecs we have to limit bclk to 64X lrclk.
 	 */
 	clk_set_rate(da7219_dai_wclk, 48000);
 	clk_set_rate(da7219_dai_bclk, 48000 * 64);
 	ret = clk_prepare_enable(da7219_dai_bclk);
 	if (ret < 0) {
 		dev_err(rtd->dev, "can't enable master clock %d\n", ret);
 		return ret;
 	}

 	return ret;
 }

 static void da7219_clk_disable(void)
 {
 	clk_disable_unprepare(da7219_dai_bclk);
 }

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

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

 static int cz_da7219_play_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

 	/*
 	 * On this platform for PCM device we support stereo
 	 */

 	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);

 	machine->play_i2s_instance = I2S_SP_INSTANCE;
 	return da7219_clk_enable(substream);
 }

 static int cz_da7219_cap_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

 	/*
 	 * On this platform for PCM device we support stereo
 	 */

 	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);

 	machine->cap_i2s_instance = I2S_SP_INSTANCE;
 	machine->capture_channel = CAP_CHANNEL1;
 	return da7219_clk_enable(substream);
 }

 static int cz_max_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

 	/*
 	 * On this platform for PCM device we support stereo
 	 */

 	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);

 	machine->play_i2s_instance = I2S_BT_INSTANCE;
 	return da7219_clk_enable(substream);
 }

 static int cz_dmic0_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

 	/*
 	 * On this platform for PCM device we support stereo
 	 */

 	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);

 	machine->cap_i2s_instance = I2S_BT_INSTANCE;
 	return da7219_clk_enable(substream);
 }

 static int cz_dmic1_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

 	/*
 	 * On this platform for PCM device we support stereo
 	 */

 	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);

 	machine->cap_i2s_instance = I2S_SP_INSTANCE;
 	machine->capture_channel = CAP_CHANNEL0;
 	return da7219_clk_enable(substream);
 }

 static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 {
 	da7219_clk_disable();
 }

 static const struct snd_soc_ops cz_da7219_play_ops = {
 	.startup = cz_da7219_play_startup,
 	.shutdown = cz_da7219_shutdown,
 };

 static const struct snd_soc_ops cz_da7219_cap_ops = {
 	.startup = cz_da7219_cap_startup,
 	.shutdown = cz_da7219_shutdown,
 };

 static const struct snd_soc_ops cz_max_play_ops = {
 	.startup = cz_max_startup,
 	.shutdown = cz_da7219_shutdown,
 };

 static const struct snd_soc_ops cz_dmic0_cap_ops = {
 	.startup = cz_dmic0_startup,
 	.shutdown = cz_da7219_shutdown,
 };

 static const struct snd_soc_ops cz_dmic1_cap_ops = {
 	.startup = cz_dmic1_startup,
 	.shutdown = cz_da7219_shutdown,
 };

 SND_SOC_DAILINK_DEF(designware1,
 	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.1.auto")));
 SND_SOC_DAILINK_DEF(designware2,
 	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2.auto")));
 SND_SOC_DAILINK_DEF(designware3,
 	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.3.auto")));

 SND_SOC_DAILINK_DEF(dlgs,
 	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7219:00", "da7219-hifi")));
 SND_SOC_DAILINK_DEF(mx,
 	DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", "HiFi")));
 SND_SOC_DAILINK_DEF(adau,
 	DAILINK_COMP_ARRAY(COMP_CODEC("ADAU7002:00", "adau7002-hifi")));

 SND_SOC_DAILINK_DEF(platform,
 	DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_audio_dma.0.auto")));

 static struct snd_soc_dai_link cz_dai_7219_98357[] = {
 	{
 		.name = "amd-da7219-play",
 		.stream_name = "Playback",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.init = cz_da7219_init,
 		.dpcm_playback = 1,
 		.ops = &cz_da7219_play_ops,
 		SND_SOC_DAILINK_REG(designware1, dlgs, platform),
 	},
 	{
 		.name = "amd-da7219-cap",
 		.stream_name = "Capture",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.dpcm_capture = 1,
 		.ops = &cz_da7219_cap_ops,
 		SND_SOC_DAILINK_REG(designware2, dlgs, platform),
 	},
 	{
 		.name = "amd-max98357-play",
 		.stream_name = "HiFi Playback",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.dpcm_playback = 1,
 		.ops = &cz_max_play_ops,
 		SND_SOC_DAILINK_REG(designware3, mx, platform),
 	},
 	{
 		/* C panel DMIC */
 		.name = "dmic0",
 		.stream_name = "DMIC0 Capture",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.dpcm_capture = 1,
 		.ops = &cz_dmic0_cap_ops,
 		SND_SOC_DAILINK_REG(designware3, adau, platform),
 	},
 	{
 		/* A/B panel DMIC */
 		.name = "dmic1",
 		.stream_name = "DMIC1 Capture",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.dpcm_capture = 1,
 		.ops = &cz_dmic1_cap_ops,
 		SND_SOC_DAILINK_REG(designware2, adau, platform),
 	},
 };

 static const struct snd_soc_dapm_widget cz_widgets[] = {
 	SND_SOC_DAPM_HP("Headphones", NULL),
 	SND_SOC_DAPM_SPK("Speakers", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 	SND_SOC_DAPM_MIC("Int Mic", NULL),
 };

 static const struct snd_soc_dapm_route cz_audio_route[] = {
 	{"Headphones", NULL, "HPL"},
 	{"Headphones", NULL, "HPR"},
 	{"MIC", NULL, "Headset Mic"},
 	{"Speakers", NULL, "Speaker"},
 	{"PDM_DAT", NULL, "Int Mic"},
 };

 static const struct snd_kcontrol_new cz_mc_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphones"),
 	SOC_DAPM_PIN_SWITCH("Speakers"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 	SOC_DAPM_PIN_SWITCH("Int Mic"),
 };

 static struct snd_soc_card cz_card = {
 	.name = "acpd7219m98357",
 	.owner = THIS_MODULE,
 	.dai_link = cz_dai_7219_98357,
 	.num_links = ARRAY_SIZE(cz_dai_7219_98357),
 	.dapm_widgets = cz_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(cz_widgets),
 	.dapm_routes = cz_audio_route,
 	.num_dapm_routes = ARRAY_SIZE(cz_audio_route),
 	.controls = cz_mc_controls,
 	.num_controls = ARRAY_SIZE(cz_mc_controls),
 };

 static struct regulator_consumer_supply acp_da7219_supplies[] = {
 	REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
 	REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
 	REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
 	REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
 };

 static struct regulator_init_data acp_da7219_data = {
 	.constraints = {
 		.always_on = 1,
 	},
 	.num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
 	.consumer_supplies = acp_da7219_supplies,
 };

 static struct regulator_config acp_da7219_cfg = {
 	.init_data = &acp_da7219_data,
 };

 static struct regulator_ops acp_da7219_ops = {
 };

 static const struct regulator_desc acp_da7219_desc = {
 	.name = "reg-fixed-1.8V",
 	.type = REGULATOR_VOLTAGE,
 	.owner = THIS_MODULE,
 	.ops = &acp_da7219_ops,
 	.fixed_uV = 1800000, /* 1.8V */
 	.n_voltages = 1,
 };

 static int cz_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct snd_soc_card *card;
 	struct acp_platform_info *machine;
 	struct regulator_dev *rdev;

 	acp_da7219_cfg.dev = &pdev->dev;
 	rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
 				       &acp_da7219_cfg);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "Failed to register regulator: %d\n",
 			(int)PTR_ERR(rdev));
 		return -EINVAL;
 	}

 	machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
 			       GFP_KERNEL);
 	if (!machine)
 		return -ENOMEM;
 	card = &cz_card;
 	cz_card.dev = &pdev->dev;
 	platform_set_drvdata(pdev, card);
 	snd_soc_card_set_drvdata(card, machine);
 	ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
 	if (ret) {
 		dev_err(&pdev->dev,
 				"devm_snd_soc_register_card(%s) failed: %d\n",
 				cz_card.name, ret);
 		return ret;
 	}
 	bt_uart_enable = !device_property_read_bool(&pdev->dev,
 						    "bt-pad-enable");
 	return 0;
 }

 static const struct acpi_device_id cz_audio_acpi_match[] = {
 	{ "AMD7219", 0 },
 	{},
 };
 MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);

 static struct platform_driver cz_pcm_driver = {
 	.driver = {
 		.name = "cz-da7219-max98357a",
 		.acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
 		.pm = &snd_soc_pm_ops,
 	},
 	.probe = cz_probe,
 };

 module_platform_driver(cz_pcm_driver);

 MODULE_AUTHOR("akshu.agrawal@amd.com");
 MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
 MODULE_LICENSE("GPL v2");
	/*
	* Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec
	*
	* Copyright 2017 Advanced Micro Devices, Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	* OTHER DEALINGS IN THE SOFTWARE.
	*
	*/

	#include <sound/core.h>
	#include <sound/soc.h>
	#include <sound/pcm.h>
	#include <sound/pcm_params.h>
	#include <sound/soc-dapm.h>
	#include <sound/jack.h>
	#include <linux/clk.h>
	#include <linux/gpio.h>
	#include <linux/module.h>
	#include <linux/regulator/machine.h>
	#include <linux/regulator/driver.h>
	#include <linux/i2c.h>
	#include <linux/input.h>
	#include <linux/acpi.h>

	#include "acp.h"
	#include "../codecs/da7219.h"
	#include "../codecs/da7219-aad.h"

	#define CZ_PLAT_CLK 48000000
	#define DUAL_CHANNEL 2

	static struct snd_soc_jack cz_jack;
	static struct clk *da7219_dai_wclk;
	static struct clk *da7219_dai_bclk;
	extern bool bt_uart_enable;

	static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
	{
	int ret;
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_component *component = codec_dai->component;

	dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);

	ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
	CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
	if (ret < 0) {
	dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
	return ret;
	}

	ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
	CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
	if (ret < 0) {
	dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
	return ret;
	}

	da7219_dai_wclk = clk_get(component->dev, "da7219-dai-wclk");
	da7219_dai_bclk = clk_get(component->dev, "da7219-dai-bclk");

	ret = snd_soc_card_jack_new(card, "Headset Jack",
	SND_JACK_HEADSET \| SND_JACK_LINEOUT \|
	SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	SND_JACK_BTN_2 \| SND_JACK_BTN_3,
	&cz_jack, NULL, 0);
	if (ret) {
	dev_err(card->dev, "HP jack creation failed %d\n", ret);
	return ret;
	}

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

	da7219_aad_jack_det(component, &cz_jack);

	return 0;
	}

	static int da7219_clk_enable(struct snd_pcm_substream *substream)
	{
	int ret = 0;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	/*
	* Set wclk to 48000 because the rate constraint of this driver is
	* 48000. ADAU7002 spec: "The ADAU7002 requires a BCLK rate that is
	* minimum of 64x the LRCLK sample rate." DA7219 is the only clk
	* source so for all codecs we have to limit bclk to 64X lrclk.
	*/
	clk_set_rate(da7219_dai_wclk, 48000);
	clk_set_rate(da7219_dai_bclk, 48000 * 64);
	ret = clk_prepare_enable(da7219_dai_bclk);
	if (ret < 0) {
	dev_err(rtd->dev, "can't enable master clock %d\n", ret);
	return ret;
	}

	return ret;
	}

	static void da7219_clk_disable(void)
	{
	clk_disable_unprepare(da7219_dai_bclk);
	}

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

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

	static int cz_da7219_play_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

	/*
	* On this platform for PCM device we support stereo
	*/

	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);

	machine->play_i2s_instance = I2S_SP_INSTANCE;
	return da7219_clk_enable(substream);
	}

	static int cz_da7219_cap_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

	/*
	* On this platform for PCM device we support stereo
	*/

	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);

	machine->cap_i2s_instance = I2S_SP_INSTANCE;
	machine->capture_channel = CAP_CHANNEL1;
	return da7219_clk_enable(substream);
	}

	static int cz_max_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

	/*
	* On this platform for PCM device we support stereo
	*/

	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);

	machine->play_i2s_instance = I2S_BT_INSTANCE;
	return da7219_clk_enable(substream);
	}

	static int cz_dmic0_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

	/*
	* On this platform for PCM device we support stereo
	*/

	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);

	machine->cap_i2s_instance = I2S_BT_INSTANCE;
	return da7219_clk_enable(substream);
	}

	static int cz_dmic1_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 acp_platform_info *machine = snd_soc_card_get_drvdata(card);

	/*
	* On this platform for PCM device we support stereo
	*/

	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);

	machine->cap_i2s_instance = I2S_SP_INSTANCE;
	machine->capture_channel = CAP_CHANNEL0;
	return da7219_clk_enable(substream);
	}

	static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
	{
	da7219_clk_disable();
	}

	static const struct snd_soc_ops cz_da7219_play_ops = {
	.startup = cz_da7219_play_startup,
	.shutdown = cz_da7219_shutdown,
	};

	static const struct snd_soc_ops cz_da7219_cap_ops = {
	.startup = cz_da7219_cap_startup,
	.shutdown = cz_da7219_shutdown,
	};

	static const struct snd_soc_ops cz_max_play_ops = {
	.startup = cz_max_startup,
	.shutdown = cz_da7219_shutdown,
	};

	static const struct snd_soc_ops cz_dmic0_cap_ops = {
	.startup = cz_dmic0_startup,
	.shutdown = cz_da7219_shutdown,
	};

	static const struct snd_soc_ops cz_dmic1_cap_ops = {
	.startup = cz_dmic1_startup,
	.shutdown = cz_da7219_shutdown,
	};

	SND_SOC_DAILINK_DEF(designware1,
	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.1.auto")));
	SND_SOC_DAILINK_DEF(designware2,
	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2.auto")));
	SND_SOC_DAILINK_DEF(designware3,
	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.3.auto")));

	SND_SOC_DAILINK_DEF(dlgs,
	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7219:00", "da7219-hifi")));
	SND_SOC_DAILINK_DEF(mx,
	DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", "HiFi")));
	SND_SOC_DAILINK_DEF(adau,
	DAILINK_COMP_ARRAY(COMP_CODEC("ADAU7002:00", "adau7002-hifi")));

	SND_SOC_DAILINK_DEF(platform,
	DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_audio_dma.0.auto")));

	static struct snd_soc_dai_link cz_dai_7219_98357[] = {
	{
	.name = "amd-da7219-play",
	.stream_name = "Playback",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.init = cz_da7219_init,
	.dpcm_playback = 1,
	.ops = &cz_da7219_play_ops,
	SND_SOC_DAILINK_REG(designware1, dlgs, platform),
	},
	{
	.name = "amd-da7219-cap",
	.stream_name = "Capture",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.dpcm_capture = 1,
	.ops = &cz_da7219_cap_ops,
	SND_SOC_DAILINK_REG(designware2, dlgs, platform),
	},
	{
	.name = "amd-max98357-play",
	.stream_name = "HiFi Playback",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.dpcm_playback = 1,
	.ops = &cz_max_play_ops,
	SND_SOC_DAILINK_REG(designware3, mx, platform),
	},
	{
	/* C panel DMIC */
	.name = "dmic0",
	.stream_name = "DMIC0 Capture",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.dpcm_capture = 1,
	.ops = &cz_dmic0_cap_ops,
	SND_SOC_DAILINK_REG(designware3, adau, platform),
	},
	{
	/* A/B panel DMIC */
	.name = "dmic1",
	.stream_name = "DMIC1 Capture",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.dpcm_capture = 1,
	.ops = &cz_dmic1_cap_ops,
	SND_SOC_DAILINK_REG(designware2, adau, platform),
	},
	};

	static const struct snd_soc_dapm_widget cz_widgets[] = {
	SND_SOC_DAPM_HP("Headphones", NULL),
	SND_SOC_DAPM_SPK("Speakers", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Int Mic", NULL),
	};

	static const struct snd_soc_dapm_route cz_audio_route[] = {
	{"Headphones", NULL, "HPL"},
	{"Headphones", NULL, "HPR"},
	{"MIC", NULL, "Headset Mic"},
	{"Speakers", NULL, "Speaker"},
	{"PDM_DAT", NULL, "Int Mic"},
	};

	static const struct snd_kcontrol_new cz_mc_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphones"),
	SOC_DAPM_PIN_SWITCH("Speakers"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Int Mic"),
	};

	static struct snd_soc_card cz_card = {
	.name = "acpd7219m98357",
	.owner = THIS_MODULE,
	.dai_link = cz_dai_7219_98357,
	.num_links = ARRAY_SIZE(cz_dai_7219_98357),
	.dapm_widgets = cz_widgets,
	.num_dapm_widgets = ARRAY_SIZE(cz_widgets),
	.dapm_routes = cz_audio_route,
	.num_dapm_routes = ARRAY_SIZE(cz_audio_route),
	.controls = cz_mc_controls,
	.num_controls = ARRAY_SIZE(cz_mc_controls),
	};

	static struct regulator_consumer_supply acp_da7219_supplies[] = {
	REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
	REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
	REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
	REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
	};

	static struct regulator_init_data acp_da7219_data = {
	.constraints = {
	.always_on = 1,
	},
	.num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
	.consumer_supplies = acp_da7219_supplies,
	};

	static struct regulator_config acp_da7219_cfg = {
	.init_data = &acp_da7219_data,
	};

	static struct regulator_ops acp_da7219_ops = {
	};

	static const struct regulator_desc acp_da7219_desc = {
	.name = "reg-fixed-1.8V",
	.type = REGULATOR_VOLTAGE,
	.owner = THIS_MODULE,
	.ops = &acp_da7219_ops,
	.fixed_uV = 1800000, /* 1.8V */
	.n_voltages = 1,
	};

	static int cz_probe(struct platform_device *pdev)
	{
	int ret;
	struct snd_soc_card *card;
	struct acp_platform_info *machine;
	struct regulator_dev *rdev;

	acp_da7219_cfg.dev = &pdev->dev;
	rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
	&acp_da7219_cfg);
	if (IS_ERR(rdev)) {
	dev_err(&pdev->dev, "Failed to register regulator: %d\n",
	(int)PTR_ERR(rdev));
	return -EINVAL;
	}

	machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
	GFP_KERNEL);
	if (!machine)
	return -ENOMEM;
	card = &cz_card;
	cz_card.dev = &pdev->dev;
	platform_set_drvdata(pdev, card);
	snd_soc_card_set_drvdata(card, machine);
	ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
	if (ret) {
	dev_err(&pdev->dev,
	"devm_snd_soc_register_card(%s) failed: %d\n",
	cz_card.name, ret);
	return ret;
	}
	bt_uart_enable = !device_property_read_bool(&pdev->dev,
	"bt-pad-enable");
	return 0;
	}

	static const struct acpi_device_id cz_audio_acpi_match[] = {
	{ "AMD7219", 0 },
	{},
	};
	MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);

	static struct platform_driver cz_pcm_driver = {
	.driver = {
	.name = "cz-da7219-max98357a",
	.acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
	.pm = &snd_soc_pm_ops,
	},
	.probe = cz_probe,
	};

	module_platform_driver(cz_pcm_driver);

	MODULE_AUTHOR("akshu.agrawal@amd.com");
	MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
	MODULE_LICENSE("GPL v2");