ASoC: Intel: add machine driver for SOF+ES8336

Add machine driver to support APL/GLK/TGL platforms.
The TGL platform supports DMIC, APL and GLK do not.

Co-developed-by: Huajun Li <huajun.li@intel.com>
Signed-off-by: Huajun Li <huajun.li@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211004213512.220836-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

3 files changed, 585 insertions, 0 deletions

diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index 3e20c697b569..5a225a4ce604 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -512,6 +512,20 @@ config SND_SOC_INTEL_SOF_PCM512x_MACH
 	  Say Y or m if you have such a device.
 	  If unsure select "N".
 
+config SND_SOC_INTEL_SOF_ES8336_MACH
+	tristate "SOF with ES8336 codec in I2S mode"
+	depends on I2C && ACPI && GPIOLIB
+	depends on MFD_INTEL_LPSS || COMPILE_TEST
+	depends on SND_HDA_CODEC_HDMI && SND_SOC_SOF_HDA_AUDIO_CODEC
+	select SND_SOC_ES8316
+	select SND_SOC_DMIC
+	select SND_SOC_INTEL_HDA_DSP_COMMON
+	help
+	   This adds support for ASoC machine driver for SOF platforms
+	   with es8336 codec.
+	   Say Y if you have such a device.
+	   If unsure select "N".
+
 endif ## SND_SOC_SOF_HDA_LINK || SND_SOC_SOF_BAYTRAIL
 
 if (SND_SOC_SOF_COMETLAKE && SND_SOC_SOF_HDA_LINK)
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index ed21b82a4cf6..9ee8ed864f5d 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -21,6 +21,7 @@ snd-soc-sst-byt-cht-es8316-objs := bytcht_es8316.o
 snd-soc-sst-byt-cht-nocodec-objs := bytcht_nocodec.o
 snd-soc-sof_rt5682-objs := sof_rt5682.o sof_realtek_common.o
 snd-soc-sof_cs42l42-objs := sof_cs42l42.o
+snd-soc-sof_es8336-objs := sof_es8336.o
 snd-soc-cml_rt1011_rt5682-objs := cml_rt1011_rt5682.o
 snd-soc-kbl_da7219_max98357a-objs := kbl_da7219_max98357a.o
 snd-soc-kbl_da7219_max98927-objs := kbl_da7219_max98927.o
@@ -42,6 +43,7 @@ snd-soc-sof-sdw-objs += sof_sdw.o				\
 			sof_sdw_dmic.o sof_sdw_hdmi.o
 obj-$(CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH) += snd-soc-sof_rt5682.o
 obj-$(CONFIG_SND_SOC_INTEL_SOF_CS42L42_MACH) += snd-soc-sof_cs42l42.o
+obj-$(CONFIG_SND_SOC_INTEL_SOF_ES8336_MACH) += snd-soc-sof_es8336.o
 obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o
 obj-$(CONFIG_SND_SOC_INTEL_BXT_DA7219_MAX98357A_COMMON) += snd-soc-sst-bxt-da7219_max98357a.o
 obj-$(CONFIG_SND_SOC_INTEL_BXT_RT298_MACH) += snd-soc-sst-bxt-rt298.o
diff --git a/sound/soc/intel/boards/sof_es8336.c b/sound/soc/intel/boards/sof_es8336.c
new file mode 100644
index 000000000000..20d577eaab6d
--- /dev/null
+++ b/sound/soc/intel/boards/sof_es8336.c
@@ -0,0 +1,569 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright(c) 2021 Intel Corporation.
+
+/*
+ * Intel SOF Machine Driver with es8336 Codec
+ */
+
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/machine.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "hda_dsp_common.h"
+
+#define SOF_ES8336_SSP_CODEC(quirk)		((quirk) & GENMASK(3, 0))
+#define SOF_ES8336_SSP_CODEC_MASK		(GENMASK(3, 0))
+
+#define SOF_ES8336_TGL_GPIO_QUIRK		BIT(4)
+#define SOF_ES8336_ENABLE_DMIC			BIT(5)
+
+static unsigned long quirk;
+
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, int, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
+
+struct sof_es8336_private {
+	struct device *codec_dev;
+	struct gpio_desc *gpio_pa;
+	struct snd_soc_jack jack;
+	struct list_head hdmi_pcm_list;
+	bool speaker_en;
+};
+
+struct sof_hdmi_pcm {
+	struct list_head head;
+	struct snd_soc_dai *codec_dai;
+	int device;
+};
+
+static const struct acpi_gpio_params pa_enable_gpio = { 0, 0, true };
+static const struct acpi_gpio_mapping acpi_es8336_gpios[] = {
+	{ "pa-enable-gpios", &pa_enable_gpio, 1 },
+	{ }
+};
+
+static const struct acpi_gpio_params quirk_pa_enable_gpio = { 1, 0, true };
+static const struct acpi_gpio_mapping quirk_acpi_es8336_gpios[] = {
+	{ "pa-enable-gpios", &quirk_pa_enable_gpio, 1 },
+	{ }
+};
+
+static const struct acpi_gpio_mapping *gpio_mapping = acpi_es8336_gpios;
+
+static void log_quirks(struct device *dev)
+{
+	dev_info(dev, "quirk SSP%ld",  SOF_ES8336_SSP_CODEC(quirk));
+}
+
+static int sof_es8316_speaker_power_event(struct snd_soc_dapm_widget *w,
+					  struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_card *card = w->dapm->card;
+	struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+
+	if (SND_SOC_DAPM_EVENT_ON(event))
+		priv->speaker_en = false;
+	else
+		priv->speaker_en = true;
+
+	gpiod_set_value_cansleep(priv->gpio_pa, priv->speaker_en);
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget sof_es8316_widgets[] = {
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_MIC("Internal Mic", NULL),
+
+	SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
+			    sof_es8316_speaker_power_event,
+			    SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
+};
+
+static const struct snd_soc_dapm_widget dmic_widgets[] = {
+	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+};
+
+static const struct snd_soc_dapm_route sof_es8316_audio_map[] = {
+	{"Headphone", NULL, "HPOL"},
+	{"Headphone", NULL, "HPOR"},
+
+	/*
+	 * There is no separate speaker output instead the speakers are muxed to
+	 * the HP outputs. The mux is controlled by the "Speaker Power" supply.
+	 */
+	{"Speaker", NULL, "HPOL"},
+	{"Speaker", NULL, "HPOR"},
+	{"Speaker", NULL, "Speaker Power"},
+};
+
+static const struct snd_soc_dapm_route sof_es8316_intmic_in1_map[] = {
+	{"MIC1", NULL, "Internal Mic"},
+	{"MIC2", NULL, "Headset Mic"},
+};
+
+static const struct snd_soc_dapm_route dmic_map[] = {
+	/* digital mics */
+	{"DMic", NULL, "SoC DMIC"},
+};
+
+static const struct snd_kcontrol_new sof_es8316_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Speaker"),
+	SOC_DAPM_PIN_SWITCH("Headphone"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Internal Mic"),
+};
+
+static struct snd_soc_jack_pin sof_es8316_jack_pins[] = {
+	{
+		.pin	= "Headphone",
+		.mask	= SND_JACK_HEADPHONE,
+	},
+	{
+		.pin	= "Headset Mic",
+		.mask	= SND_JACK_MICROPHONE,
+	},
+};
+
+static int dmic_init(struct snd_soc_pcm_runtime *runtime)
+{
+	struct snd_soc_card *card = runtime->card;
+	int ret;
+
+	ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
+					ARRAY_SIZE(dmic_widgets));
+	if (ret) {
+		dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
+				      ARRAY_SIZE(dmic_map));
+	if (ret)
+		dev_err(card->dev, "DMic map addition failed: %d\n", ret);
+
+	return ret;
+}
+
+static int sof_hdmi_init(struct snd_soc_pcm_runtime *runtime)
+{
+	struct sof_es8336_private *priv = snd_soc_card_get_drvdata(runtime->card);
+	struct snd_soc_dai *dai = asoc_rtd_to_codec(runtime, 0);
+	struct sof_hdmi_pcm *pcm;
+
+	pcm = devm_kzalloc(runtime->card->dev, sizeof(*pcm), GFP_KERNEL);
+	if (!pcm)
+		return -ENOMEM;
+
+	/* dai_link id is 1:1 mapped to the PCM device */
+	pcm->device = runtime->dai_link->id;
+	pcm->codec_dai = dai;
+
+	list_add_tail(&pcm->head, &priv->hdmi_pcm_list);
+
+	return 0;
+}
+
+static int sof_es8316_init(struct snd_soc_pcm_runtime *runtime)
+{
+	struct snd_soc_component *codec = asoc_rtd_to_codec(runtime, 0)->component;
+	struct snd_soc_card *card = runtime->card;
+	struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+	const struct snd_soc_dapm_route *custom_map;
+	int num_routes;
+	int ret;
+
+	card->dapm.idle_bias_off = true;
+
+	custom_map = sof_es8316_intmic_in1_map;
+	num_routes = ARRAY_SIZE(sof_es8316_intmic_in1_map);
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_card_jack_new(card, "Headset",
+				    SND_JACK_HEADSET | SND_JACK_BTN_0,
+				    &priv->jack, sof_es8316_jack_pins,
+				    ARRAY_SIZE(sof_es8316_jack_pins));
+	if (ret) {
+		dev_err(card->dev, "jack creation failed %d\n", ret);
+		return ret;
+	}
+
+	snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+
+	snd_soc_component_set_jack(codec, &priv->jack, NULL);
+
+	return 0;
+}
+
+static void sof_es8316_exit(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+	snd_soc_component_set_jack(component, NULL, NULL);
+}
+
+static int sof_es8336_quirk_cb(const struct dmi_system_id *id)
+{
+	quirk = (unsigned long)id->driver_data;
+
+	if (quirk & SOF_ES8336_TGL_GPIO_QUIRK)
+		gpio_mapping = quirk_acpi_es8336_gpios;
+
+	return 1;
+}
+
+static const struct dmi_system_id sof_es8336_quirk_table[] = {
+	{
+		.callback = sof_es8336_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "CHUWI Innovation And Technology"),
+			DMI_MATCH(DMI_BOARD_NAME, "Hi10 X"),
+		},
+		.driver_data = (void *)SOF_ES8336_SSP_CODEC(2)
+	},
+	{
+		.callback = sof_es8336_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "IP3 tech"),
+			DMI_MATCH(DMI_BOARD_NAME, "WN1"),
+		},
+		.driver_data = (void *)(SOF_ES8336_SSP_CODEC(0) |
+					SOF_ES8336_TGL_GPIO_QUIRK |
+					SOF_ES8336_ENABLE_DMIC)
+	},
+	{}
+};
+
+static int sof_es8336_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	const int sysclk = 19200000;
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, 1, sysclk, SND_SOC_CLOCK_OUT);
+	if (ret < 0) {
+		dev_err(rtd->dev, "%s, Failed to set ES8336 SYSCLK: %d\n",
+			__func__, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* machine stream operations */
+static struct snd_soc_ops sof_es8336_ops = {
+	.hw_params = sof_es8336_hw_params,
+};
+
+static struct snd_soc_dai_link_component platform_component[] = {
+	{
+		/* name might be overridden during probe */
+		.name = "0000:00:1f.3"
+	}
+};
+
+SND_SOC_DAILINK_DEF(ssp1_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-ESSX8336:00", "ES8316 HiFi")));
+
+static struct snd_soc_dai_link_component dmic_component[] = {
+	{
+		.name = "dmic-codec",
+		.dai_name = "dmic-hifi",
+	}
+};
+
+static int sof_es8336_late_probe(struct snd_soc_card *card)
+{
+	struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+	struct sof_hdmi_pcm *pcm;
+
+	if (list_empty(&priv->hdmi_pcm_list))
+		return -ENOENT;
+
+	pcm = list_first_entry(&priv->hdmi_pcm_list, struct sof_hdmi_pcm, head);
+
+	return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component);
+}
+
+/* SoC card */
+static struct snd_soc_card sof_es8336_card = {
+	.name = "essx8336", /* sof- prefix added automatically */
+	.owner = THIS_MODULE,
+	.dapm_widgets = sof_es8316_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(sof_es8316_widgets),
+	.dapm_routes = sof_es8316_audio_map,
+	.num_dapm_routes = ARRAY_SIZE(sof_es8316_audio_map),
+	.controls = sof_es8316_controls,
+	.num_controls = ARRAY_SIZE(sof_es8316_controls),
+	.fully_routed = true,
+	.late_probe = sof_es8336_late_probe,
+	.num_links = 1,
+};
+
+static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
+							  int ssp_codec,
+							  int dmic_be_num,
+							  int hdmi_num)
+{
+	struct snd_soc_dai_link_component *cpus;
+	struct snd_soc_dai_link *links;
+	struct snd_soc_dai_link_component *idisp_components;
+	int hdmi_id_offset = 0;
+	int id = 0;
+	int i;
+
+	links = devm_kcalloc(dev, sof_es8336_card.num_links,
+			     sizeof(struct snd_soc_dai_link), GFP_KERNEL);
+	cpus = devm_kcalloc(dev, sof_es8336_card.num_links,
+			    sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
+	if (!links || !cpus)
+		goto devm_err;
+
+	/* codec SSP */
+	links[id].name = devm_kasprintf(dev, GFP_KERNEL,
+					"SSP%d-Codec", ssp_codec);
+	if (!links[id].name)
+		goto devm_err;
+
+	links[id].id = id;
+	links[id].codecs = ssp1_codec;
+	links[id].num_codecs = ARRAY_SIZE(ssp1_codec);
+	links[id].platforms = platform_component;
+	links[id].num_platforms = ARRAY_SIZE(platform_component);
+	links[id].init = sof_es8316_init;
+	links[id].exit = sof_es8316_exit;
+	links[id].ops = &sof_es8336_ops;
+	links[id].nonatomic = true;
+	links[id].dpcm_playback = 1;
+	links[id].dpcm_capture = 1;
+	links[id].no_pcm = 1;
+	links[id].cpus = &cpus[id];
+	links[id].num_cpus = 1;
+
+	links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+						  "SSP%d Pin",
+						  ssp_codec);
+	if (!links[id].cpus->dai_name)
+		goto devm_err;
+
+	id++;
+
+	/* dmic */
+	if (dmic_be_num > 0) {
+		/* at least we have dmic01 */
+		links[id].name = "dmic01";
+		links[id].cpus = &cpus[id];
+		links[id].cpus->dai_name = "DMIC01 Pin";
+		links[id].init = dmic_init;
+		if (dmic_be_num > 1) {
+			/* set up 2 BE links at most */
+			links[id + 1].name = "dmic16k";
+			links[id + 1].cpus = &cpus[id + 1];
+			links[id + 1].cpus->dai_name = "DMIC16k Pin";
+			dmic_be_num = 2;
+		}
+	} else {
+		/* HDMI dai link starts at 3 according to current topology settings */
+		hdmi_id_offset = 2;
+	}
+
+	for (i = 0; i < dmic_be_num; i++) {
+		links[id].id = id;
+		links[id].num_cpus = 1;
+		links[id].codecs = dmic_component;
+		links[id].num_codecs = ARRAY_SIZE(dmic_component);
+		links[id].platforms = platform_component;
+		links[id].num_platforms = ARRAY_SIZE(platform_component);
+		links[id].ignore_suspend = 1;
+		links[id].dpcm_capture = 1;
+		links[id].no_pcm = 1;
+
+		id++;
+	}
+
+	/* HDMI */
+	if (hdmi_num > 0) {
+		idisp_components = devm_kzalloc(dev,
+						sizeof(struct snd_soc_dai_link_component) *
+						hdmi_num, GFP_KERNEL);
+		if (!idisp_components)
+			goto devm_err;
+	}
+
+	for (i = 1; i <= hdmi_num; i++) {
+		links[id].name = devm_kasprintf(dev, GFP_KERNEL,
+						"iDisp%d", i);
+		if (!links[id].name)
+			goto devm_err;
+
+		links[id].id = id + hdmi_id_offset;
+		links[id].cpus = &cpus[id];
+		links[id].num_cpus = 1;
+		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+							  "iDisp%d Pin", i);
+		if (!links[id].cpus->dai_name)
+			goto devm_err;
+
+		idisp_components[i - 1].name = "ehdaudio0D2";
+		idisp_components[i - 1].dai_name = devm_kasprintf(dev,
+								  GFP_KERNEL,
+								  "intel-hdmi-hifi%d",
+								  i);
+		if (!idisp_components[i - 1].dai_name)
+			goto devm_err;
+
+		links[id].codecs = &idisp_components[i - 1];
+		links[id].num_codecs = 1;
+		links[id].platforms = platform_component;
+		links[id].num_platforms = ARRAY_SIZE(platform_component);
+		links[id].init = sof_hdmi_init;
+		links[id].dpcm_playback = 1;
+		links[id].no_pcm = 1;
+
+		id++;
+	}
+
+	return links;
+
+devm_err:
+	return NULL;
+}
+
+ /* i2c-<HID>:00 with HID being 8 chars */
+static char codec_name[SND_ACPI_I2C_ID_LEN];
+
+static int sof_es8336_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct snd_soc_card *card;
+	struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
+	struct sof_es8336_private *priv;
+	struct acpi_device *adev;
+	struct snd_soc_dai_link *dai_links;
+	struct device *codec_dev;
+	int dmic_be_num = 0;
+	int hdmi_num = 3;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	card = &sof_es8336_card;
+	card->dev = dev;
+
+	if (!dmi_check_system(sof_es8336_quirk_table))
+		quirk = SOF_ES8336_SSP_CODEC(2);
+
+	if (quirk & SOF_ES8336_ENABLE_DMIC)
+		dmic_be_num = 2;
+
+	if (quirk_override != -1) {
+		dev_info(dev, "Overriding quirk 0x%lx => 0x%x\n",
+			 quirk, quirk_override);
+		quirk = quirk_override;
+	}
+	log_quirks(dev);
+
+	sof_es8336_card.num_links += dmic_be_num + hdmi_num;
+	dai_links = sof_card_dai_links_create(dev,
+					      SOF_ES8336_SSP_CODEC(quirk),
+					      dmic_be_num, hdmi_num);
+	if (!dai_links)
+		return -ENOMEM;
+
+	sof_es8336_card.dai_link = dai_links;
+
+	/* fixup codec name based on HID */
+	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
+	if (adev) {
+		snprintf(codec_name, sizeof(codec_name),
+			 "i2c-%s", acpi_dev_name(adev));
+		put_device(&adev->dev);
+		dai_links[0].codecs->name = codec_name;
+	}
+
+	ret = snd_soc_fixup_dai_links_platform_name(&sof_es8336_card,
+						    mach->mach_params.platform);
+	if (ret)
+		return ret;
+
+	/* get speaker enable GPIO */
+	codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, codec_name);
+	if (!codec_dev)
+		return -EPROBE_DEFER;
+
+	ret = devm_acpi_dev_add_driver_gpios(codec_dev, gpio_mapping);
+	if (ret)
+		dev_warn(codec_dev, "unable to add GPIO mapping table\n");
+
+	priv->gpio_pa = gpiod_get(codec_dev, "pa-enable", GPIOD_OUT_LOW);
+	if (IS_ERR(priv->gpio_pa)) {
+		ret = PTR_ERR(priv->gpio_pa);
+		dev_err(codec_dev, "%s, could not get pa-enable: %d\n",
+			__func__, ret);
+		goto err;
+	}
+
+	priv->codec_dev = codec_dev;
+	INIT_LIST_HEAD(&priv->hdmi_pcm_list);
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret) {
+		gpiod_put(priv->gpio_pa);
+		dev_err(dev, "snd_soc_register_card failed: %d\n", ret);
+		goto err;
+	}
+	platform_set_drvdata(pdev, &sof_es8336_card);
+	return 0;
+
+err:
+	put_device(codec_dev);
+	return ret;
+}
+
+static int sof_es8336_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct sof_es8336_private *priv = snd_soc_card_get_drvdata(card);
+
+	gpiod_put(priv->gpio_pa);
+	put_device(priv->codec_dev);
+
+	return 0;
+}
+
+static struct platform_driver sof_es8336_driver = {
+	.driver = {
+		.name = "sof-essx8336",
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = sof_es8336_probe,
+	.remove = sof_es8336_remove,
+};
+module_platform_driver(sof_es8336_driver);
+
+MODULE_DESCRIPTION("ASoC Intel(R) SOF + ES8336 Machine driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:sof-essx8336");
+MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);