diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index c033ee7d82e4..d8d26914faf7 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -41,6 +41,7 @@ config SND_SOC_ALL_CODECS
 	imply SND_SOC_ADS117X
 	imply SND_SOC_AK4104
 	imply SND_SOC_AK4118
+	imply SND_SOC_AK4375
 	imply SND_SOC_AK4458
 	imply SND_SOC_AK4535
 	imply SND_SOC_AK4554
@@ -522,6 +523,16 @@ config SND_SOC_AK4118
 	depends on I2C
 	select REGMAP_I2C
 
+config SND_SOC_AK4375
+	tristate "AKM AK4375 CODEC"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Enable support for the Asahi-Kasei AK4375 codec.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-soc-ak4375.
+
 config SND_SOC_AK4458
 	tristate "AKM AK4458 CODEC"
 	depends on I2C
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 485eee75502b..96aef5857eac 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -34,6 +34,7 @@ snd-soc-adav803-objs := adav803.o
 snd-soc-ads117x-objs := ads117x.o
 snd-soc-ak4104-objs := ak4104.o
 snd-soc-ak4118-objs := ak4118.o
+snd-soc-ak4375-objs := ak4375.o
 snd-soc-ak4458-objs := ak4458.o
 snd-soc-ak4535-objs := ak4535.o
 snd-soc-ak4554-objs := ak4554.o
@@ -370,6 +371,7 @@ obj-$(CONFIG_SND_SOC_ADAV803)  += snd-soc-adav803.o
 obj-$(CONFIG_SND_SOC_ADS117X)	+= snd-soc-ads117x.o
 obj-$(CONFIG_SND_SOC_AK4104)	+= snd-soc-ak4104.o
 obj-$(CONFIG_SND_SOC_AK4118)	+= snd-soc-ak4118.o
+obj-$(CONFIG_SND_SOC_AK4375)	+= snd-soc-ak4375.o
 obj-$(CONFIG_SND_SOC_AK4458)	+= snd-soc-ak4458.o
 obj-$(CONFIG_SND_SOC_AK4535)	+= snd-soc-ak4535.o
 obj-$(CONFIG_SND_SOC_AK4554)	+= snd-soc-ak4554.o
diff --git a/sound/soc/codecs/ak4375.c b/sound/soc/codecs/ak4375.c
new file mode 100644
index 000000000000..d922e74e5dc6
--- /dev/null
+++ b/sound/soc/codecs/ak4375.c
@@ -0,0 +1,676 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/*
+ * Based on code by Hu Jin
+ * Copyright (C) 2014 Asahi Kasei Microdevices Corporation
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+/* Registers */
+#define AK4375_00_POWER_MANAGEMENT1		0x00
+#define AK4375_01_POWER_MANAGEMENT2		0x01
+#define AK4375_02_POWER_MANAGEMENT3		0x02
+#define AK4375_03_POWER_MANAGEMENT4		0x03
+#define AK4375_04_OUTPUT_MODE_SETTING		0x04
+#define AK4375_05_CLOCK_MODE_SELECT		0x05
+#define AK4375_06_DIGITAL_FILTER_SELECT		0x06
+#define AK4375_07_DAC_MONO_MIXING		0x07
+#define AK4375_08_JITTER_CLEANER_SETTING1	0x08
+#define AK4375_09_JITTER_CLEANER_SETTING2	0x09
+#define AK4375_0A_JITTER_CLEANER_SETTING3	0x0a
+#define AK4375_0B_LCH_OUTPUT_VOLUME		0x0b
+#define AK4375_0C_RCH_OUTPUT_VOLUME		0x0c
+#define AK4375_0D_HP_VOLUME_CONTROL		0x0d
+#define AK4375_0E_PLL_CLK_SOURCE_SELECT		0x0e
+#define AK4375_0F_PLL_REF_CLK_DIVIDER1		0x0f
+#define AK4375_10_PLL_REF_CLK_DIVIDER2		0x10
+#define AK4375_11_PLL_FB_CLK_DIVIDER1		0x11
+#define AK4375_12_PLL_FB_CLK_DIVIDER2		0x12
+#define AK4375_13_SRC_CLK_SOURCE		0x13
+#define AK4375_14_DAC_CLK_DIVIDER		0x14
+#define AK4375_15_AUDIO_IF_FORMAT		0x15
+#define AK4375_24_MODE_CONTROL			0x24
+
+#define AK4375_FS_MASK				GENMASK(4, 0)
+#define AK4375_FS_8KHZ				(0x00 << 0)
+#define AK4375_FS_11_025KHZ			(0x01 << 0)
+#define AK4375_FS_16KHZ				(0x04 << 0)
+#define AK4375_FS_22_05KHZ			(0x05 << 0)
+#define AK4375_FS_32KHZ				(0x08 << 0)
+#define AK4375_FS_44_1KHZ			(0x09 << 0)
+#define AK4375_FS_48KHZ				(0x0a << 0)
+#define AK4375_FS_88_2KHZ			(0x0d << 0)
+#define AK4375_FS_96KHZ				(0x0e << 0)
+#define AK4375_FS_176_4KHZ			(0x11 << 0)
+#define AK4375_FS_192KHZ			(0x12 << 0)
+
+/* Master Clock settings */
+#define AK4375_CM_MASK				(0x03 << 5)
+#define AK4375_CM_0				(0 << 5)
+#define AK4375_CM_1				BIT(5)
+#define AK4375_CM_3				(3 << 5)
+
+#define AK4375_15_DEVICEID_MASK			GENMASK(7, 5)
+#define DEVICEID_AK4375				0x00
+#define DEVICEID_AK4375A			0x01
+#define DEVICEID_AK4376A			0x02
+#define DEVICEID_AK4377				0x03
+#define DEVICEID_AK4331				0x07
+
+struct ak4375_drvdata {
+	struct snd_soc_dai_driver *dai_drv;
+	const struct snd_soc_component_driver *comp_drv;
+};
+
+struct ak4375_priv {
+	struct device *dev;
+	struct regmap *regmap;
+	struct gpio_desc *pdn_gpiod;
+	struct regulator *avdd_supply;
+	struct regulator *tvdd_supply;
+};
+
+static const struct reg_default ak4375_reg_defaults[] = {
+	{ 0x00, 0x00 }, { 0x01, 0x00 }, { 0x02, 0x00 },
+	{ 0x03, 0x00 }, { 0x04, 0x00 }, { 0x05, 0x00 },
+	{ 0x06, 0x00 }, { 0x07, 0x00 }, { 0x08, 0x00 },
+	{ 0x09, 0x00 }, { 0x0a, 0x00 }, { 0x0b, 0x19 },
+	{ 0x0c, 0x19 }, { 0x0d, 0x75 }, { 0x0e, 0x01 },
+	{ 0x0f, 0x00 }, { 0x10, 0x00 }, { 0x11, 0x00 },
+	{ 0x12, 0x00 }, { 0x13, 0x00 }, { 0x14, 0x00 },
+	{ 0x15, 0x00 }, { 0x24, 0x00 },
+};
+
+/*
+ * Output Digital volume control:
+ * from -12.5 to 3 dB in 0.5 dB steps (mute instead of -12.5 dB)
+ */
+static DECLARE_TLV_DB_SCALE(ovl_tlv, -1250, 50, 0);
+static DECLARE_TLV_DB_SCALE(ovr_tlv, -1250, 50, 0);
+
+/*
+ * HP-Amp Analog volume control:
+ * from -4.2 to 6 dB in 2 dB steps (mute instead of -4.2 dB)
+ */
+static DECLARE_TLV_DB_SCALE(hpg_tlv, -4200, 20, 0);
+
+static const char * const ak4375_ovolcn_select_texts[]	= { "Dependent", "Independent" };
+static const char * const ak4375_mdacl_select_texts[]	= { "x1", "x1/2" };
+static const char * const ak4375_mdacr_select_texts[]	= { "x1", "x1/2" };
+static const char * const ak4375_invl_select_texts[]	= { "Normal", "Inverting" };
+static const char * const ak4375_invr_select_texts[]	= { "Normal", "Inverting" };
+static const char * const ak4375_hphl_select_texts[]	= { "9ohm", "200kohm" };
+static const char * const ak4375_hphr_select_texts[]	= { "9ohm", "200kohm" };
+static const char * const ak4375_cpmod_select_texts[]	= {
+	"Automatic Switching",
+	"+-VDD Operation",
+	"+-1/2VDD Operation"
+};
+
+/*
+ * DASD, DASL bits Digital Filter Setting
+ * 0, 0 : Sharp Roll-Off Filter
+ * 0, 1 : Slow Roll-Off Filter
+ * 1, 0 : Short delay Sharp Roll-Off Filter
+ * 1, 1 : Short delay Slow Roll-Off Filter
+ */
+static const char * const ak4375_digfil_select_texts[] = {
+	"Sharp Roll-Off Filter",
+	"Slow Roll-Off Filter",
+	"Short delay Sharp Roll-Off Filter",
+	"Short delay Slow Roll-Off Filter",
+};
+
+static int get_pdn(struct snd_kcontrol *kcontrol,
+		   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);
+	int value = gpiod_get_value_cansleep(ak4375->pdn_gpiod);
+
+	if (value < 0)
+		dev_err(ak4375->dev, "unable to get pdn gpiod: %d\n", value);
+	else
+		ucontrol->value.enumerated.item[0] = value;
+
+	return 0;
+}
+
+static int set_pdn(struct snd_kcontrol *kcontrol,
+		   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);
+
+	gpiod_set_value_cansleep(ak4375->pdn_gpiod,
+				 ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static const struct soc_enum ak4375_dac_enum[] = {
+	SOC_ENUM_SINGLE(AK4375_0B_LCH_OUTPUT_VOLUME, 7,
+			ARRAY_SIZE(ak4375_ovolcn_select_texts), ak4375_ovolcn_select_texts),
+	SOC_ENUM_SINGLE(AK4375_07_DAC_MONO_MIXING, 2,
+			ARRAY_SIZE(ak4375_mdacl_select_texts), ak4375_mdacl_select_texts),
+	SOC_ENUM_SINGLE(AK4375_07_DAC_MONO_MIXING, 6,
+			ARRAY_SIZE(ak4375_mdacr_select_texts), ak4375_mdacr_select_texts),
+	SOC_ENUM_SINGLE(AK4375_07_DAC_MONO_MIXING, 3,
+			ARRAY_SIZE(ak4375_invl_select_texts), ak4375_invl_select_texts),
+	SOC_ENUM_SINGLE(AK4375_07_DAC_MONO_MIXING, 7,
+			ARRAY_SIZE(ak4375_invr_select_texts), ak4375_invr_select_texts),
+	SOC_ENUM_SINGLE(AK4375_03_POWER_MANAGEMENT4, 2,
+			ARRAY_SIZE(ak4375_cpmod_select_texts), ak4375_cpmod_select_texts),
+	SOC_ENUM_SINGLE(AK4375_04_OUTPUT_MODE_SETTING, 0,
+			ARRAY_SIZE(ak4375_hphl_select_texts), ak4375_hphl_select_texts),
+	SOC_ENUM_SINGLE(AK4375_04_OUTPUT_MODE_SETTING, 1,
+			ARRAY_SIZE(ak4375_hphr_select_texts), ak4375_hphr_select_texts),
+	SOC_ENUM_SINGLE(AK4375_06_DIGITAL_FILTER_SELECT, 6,
+			ARRAY_SIZE(ak4375_digfil_select_texts), ak4375_digfil_select_texts),
+};
+
+static const char * const pdn_on_select[] = { "OFF", "ON" };
+
+static const struct soc_enum ak4375_pdn_enum =
+	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(pdn_on_select), pdn_on_select);
+
+static const struct snd_kcontrol_new ak4375_snd_controls[] = {
+	SOC_SINGLE_TLV("AK4375 Digital Output VolumeL",
+		       AK4375_0B_LCH_OUTPUT_VOLUME, 0, 0x1f, 0, ovl_tlv),
+	SOC_SINGLE_TLV("AK4375 Digital Output VolumeR",
+		       AK4375_0C_RCH_OUTPUT_VOLUME, 0, 0x1f, 0, ovr_tlv),
+	SOC_SINGLE_TLV("AK4375 HP-Amp Analog Volume",
+		       AK4375_0D_HP_VOLUME_CONTROL, 0, 0x1f, 0, hpg_tlv),
+
+	SOC_ENUM("AK4375 Digital Volume Control", ak4375_dac_enum[0]),
+	SOC_ENUM("AK4375 DACL Signal Level", ak4375_dac_enum[1]),
+	SOC_ENUM("AK4375 DACR Signal Level", ak4375_dac_enum[2]),
+	SOC_ENUM("AK4375 DACL Signal Invert", ak4375_dac_enum[3]),
+	SOC_ENUM("AK4375 DACR Signal Invert", ak4375_dac_enum[4]),
+	SOC_ENUM("AK4375 Charge Pump Mode", ak4375_dac_enum[5]),
+	SOC_ENUM("AK4375 HPL Power-down Resistor", ak4375_dac_enum[6]),
+	SOC_ENUM("AK4375 HPR Power-down Resistor", ak4375_dac_enum[7]),
+	SOC_ENUM("AK4375 DAC Digital Filter Mode", ak4375_dac_enum[8]),
+
+	SOC_ENUM_EXT("AK4375 HP", ak4375_pdn_enum, get_pdn, set_pdn),
+};
+
+static const struct snd_kcontrol_new ak4375_hpl_mixer_controls[] = {
+	SOC_DAPM_SINGLE("LDACL", AK4375_07_DAC_MONO_MIXING, 0, 1, 0),
+	SOC_DAPM_SINGLE("RDACL", AK4375_07_DAC_MONO_MIXING, 1, 1, 0),
+};
+
+static const struct snd_kcontrol_new ak4375_hpr_mixer_controls[] = {
+	SOC_DAPM_SINGLE("LDACR", AK4375_07_DAC_MONO_MIXING, 4, 1, 0),
+	SOC_DAPM_SINGLE("RDACR", AK4375_07_DAC_MONO_MIXING, 5, 1, 0),
+};
+
+static int ak4375_dac_event(struct snd_soc_dapm_widget *w,
+			    struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		snd_soc_component_update_bits(component, AK4375_00_POWER_MANAGEMENT1, 0x01, 0x01);
+		snd_soc_component_update_bits(component, AK4375_01_POWER_MANAGEMENT2, 0x01, 0x01);
+		usleep_range(6500, 7000);
+		snd_soc_component_update_bits(component, AK4375_01_POWER_MANAGEMENT2, 0x30, 0x30);
+		usleep_range(1000, 2000);
+		break;
+	case SND_SOC_DAPM_POST_PMU:
+		snd_soc_component_update_bits(component, AK4375_01_POWER_MANAGEMENT2, 0x02, 0x02);
+		usleep_range(4500, 5000);
+		break;
+	case SND_SOC_DAPM_PRE_PMD:
+		snd_soc_component_update_bits(component, AK4375_01_POWER_MANAGEMENT2, 0x02, 0x00);
+		break;
+	case SND_SOC_DAPM_POST_PMD:
+		snd_soc_component_update_bits(component, AK4375_01_POWER_MANAGEMENT2, 0x30, 0x00);
+		snd_soc_component_update_bits(component, AK4375_01_POWER_MANAGEMENT2, 0x01, 0x00);
+		snd_soc_component_update_bits(component, AK4375_00_POWER_MANAGEMENT1, 0x01, 0x00);
+		break;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget ak4375_dapm_widgets[] = {
+	SND_SOC_DAPM_DAC_E("AK4375 DAC", NULL, AK4375_02_POWER_MANAGEMENT3, 0, 0, ak4375_dac_event,
+			   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
+			   SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
+
+	SND_SOC_DAPM_AIF_IN("AK4375 SDTI", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
+
+	SND_SOC_DAPM_OUTPUT("AK4375 HPL"),
+	SND_SOC_DAPM_OUTPUT("AK4375 HPR"),
+
+	SND_SOC_DAPM_MIXER("AK4375 HPR Mixer", AK4375_03_POWER_MANAGEMENT4, 1, 0,
+			   &ak4375_hpr_mixer_controls[0], ARRAY_SIZE(ak4375_hpr_mixer_controls)),
+	SND_SOC_DAPM_MIXER("AK4375 HPL Mixer", AK4375_03_POWER_MANAGEMENT4, 0, 0,
+			   &ak4375_hpl_mixer_controls[0], ARRAY_SIZE(ak4375_hpl_mixer_controls)),
+};
+
+static const struct snd_soc_dapm_route ak4375_intercon[] = {
+	{ "AK4375 DAC",		NULL,		"AK4375 SDTI" },
+
+	{ "AK4375 HPL Mixer",	"LDACL",	"AK4375 DAC" },
+	{ "AK4375 HPL Mixer",	"RDACL",	"AK4375 DAC" },
+	{ "AK4375 HPR Mixer",	"LDACR",	"AK4375 DAC" },
+	{ "AK4375 HPR Mixer",	"RDACR",	"AK4375 DAC" },
+
+	{ "AK4375 HPL",		NULL,		"AK4375 HPL Mixer" },
+	{ "AK4375 HPR",		NULL,		"AK4375 HPR Mixer" },
+};
+
+static int ak4375_set_pllblock(struct snd_soc_component *component, int fs)
+{
+	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);
+	int mclk, pllclk, refclk, pldbit, plmbit, mdivbit, divbit;
+	u8 mode;
+
+	mode = snd_soc_component_read(component, AK4375_05_CLOCK_MODE_SELECT);
+	mode &= ~AK4375_CM_MASK;
+
+	if (fs <= 24000) {
+		mode |= AK4375_CM_1;
+		mclk = 512 * fs;
+	} else if (fs <= 96000) {
+		mode |= AK4375_CM_0;
+		mclk = 256 * fs;
+	} else {
+		mode |= AK4375_CM_3;
+		mclk = 128 * fs;
+	}
+
+	snd_soc_component_write(component, AK4375_05_CLOCK_MODE_SELECT, mode);
+
+	if ((fs % 8000) == 0)
+		pllclk = 122880000;
+	else
+		pllclk = 112896000;
+
+	if (fs <= 96000)
+		pldbit = 1;
+	else
+		pldbit = 2;
+
+	refclk = 32 * fs / pldbit;
+	plmbit = pllclk / refclk;
+
+	if (fs <= 96000) {
+		mdivbit = pllclk / mclk;
+		divbit = 0;
+	} else {
+		mdivbit = 5;
+		divbit = 1;
+	}
+
+	pldbit--;
+	plmbit--;
+	mdivbit--;
+
+	/* PLD 15-0 bits */
+	snd_soc_component_write(component,
+				AK4375_0F_PLL_REF_CLK_DIVIDER1, ((pldbit & 0xff00) >> 8));
+	snd_soc_component_write(component,
+				AK4375_10_PLL_REF_CLK_DIVIDER2, (pldbit & 0x00ff));
+	/* PLM 15-0 bits */
+	snd_soc_component_write(component,
+				AK4375_11_PLL_FB_CLK_DIVIDER1, ((plmbit & 0xff00) >> 8));
+	snd_soc_component_write(component,
+				AK4375_12_PLL_FB_CLK_DIVIDER2, (plmbit & 0x00ff));
+	/* DIV and SRCCKS bits: force SRCCKS=1 for PLL mode */
+	mode = snd_soc_component_read(component, AK4375_13_SRC_CLK_SOURCE);
+	mode &= ~0x10;
+	mode |= (divbit << 4);
+	snd_soc_component_write(component, AK4375_13_SRC_CLK_SOURCE, (mode | 0x01));
+	/* MDIV 7-0 bits */
+	snd_soc_component_write(component, AK4375_14_DAC_CLK_DIVIDER, mdivbit);
+
+	dev_dbg(ak4375->dev, "fs=%d mclk=%d pllclk=%d PLD=%d PLM=%d MDIV=%d DIV=%d\n",
+		fs, mclk, pllclk, pldbit, plmbit, mdivbit, divbit);
+
+	return 0;
+}
+
+static int ak4375_hw_params(struct snd_pcm_substream *substream,
+			    struct snd_pcm_hw_params *params,
+			    struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	int rate = params_rate(params);
+	u8 fs;
+
+	fs = snd_soc_component_read(component, AK4375_05_CLOCK_MODE_SELECT);
+	fs &= ~AK4375_FS_MASK;
+
+	switch (rate) {
+	case 8000:
+		fs |= AK4375_FS_8KHZ;
+		break;
+	case 11025:
+		fs |= AK4375_FS_11_025KHZ;
+		break;
+	case 16000:
+		fs |= AK4375_FS_16KHZ;
+		break;
+	case 22050:
+		fs |= AK4375_FS_22_05KHZ;
+		break;
+	case 32000:
+		fs |= AK4375_FS_32KHZ;
+		break;
+	case 44100:
+		fs |= AK4375_FS_44_1KHZ;
+		break;
+	case 48000:
+		fs |= AK4375_FS_48KHZ;
+		break;
+	case 88200:
+		fs |= AK4375_FS_88_2KHZ;
+		break;
+	case 96000:
+		fs |= AK4375_FS_96KHZ;
+		break;
+	case 176400:
+		fs |= AK4375_FS_176_4KHZ;
+		break;
+	case 192000:
+		fs |= AK4375_FS_192KHZ;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_component_write(component, AK4375_05_CLOCK_MODE_SELECT, fs);
+
+	ak4375_set_pllblock(component, rate);
+
+	return 0;
+}
+
+#define AK4375_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE |\
+			 SNDRV_PCM_FMTBIT_S24_LE |\
+			 SNDRV_PCM_FMTBIT_S32_LE)
+
+static const unsigned int ak4375_rates[] = {
+	8000, 11025, 16000, 22050,
+	32000, 44100, 48000, 88200,
+	96000, 176400, 192000,
+};
+
+static const struct snd_pcm_hw_constraint_list ak4375_rate_constraints = {
+	.count = ARRAY_SIZE(ak4375_rates),
+	.list = ak4375_rates,
+};
+
+static int ak4375_startup(struct snd_pcm_substream *substream,
+			  struct snd_soc_dai *dai)
+{
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+					  SNDRV_PCM_HW_PARAM_RATE,
+					  &ak4375_rate_constraints);
+}
+
+static const struct snd_soc_dai_ops ak4375_dai_ops = {
+	.startup	= ak4375_startup,
+	.hw_params	= ak4375_hw_params,
+};
+
+static struct snd_soc_dai_driver ak4375_dai = {
+	.name = "ak4375-hifi",
+	.playback = {
+		.stream_name	= "HiFi Playback",
+		.channels_min	= 1,
+		.channels_max	= 2,
+		.rates		= SNDRV_PCM_RATE_KNOT,
+		.rate_min	= 8000,
+		.rate_max	= 192000,
+		.formats	= AK4375_FORMATS,
+	},
+	.ops = &ak4375_dai_ops,
+};
+
+static void ak4375_power_off(struct ak4375_priv *ak4375)
+{
+	gpiod_set_value_cansleep(ak4375->pdn_gpiod, 0);
+	usleep_range(1000, 2000);
+
+	if (!IS_ERR(ak4375->avdd_supply))
+		regulator_disable(ak4375->avdd_supply);
+
+	regulator_disable(ak4375->tvdd_supply);
+	usleep_range(3000, 4000);
+}
+
+static int ak4375_power_on(struct ak4375_priv *ak4375)
+{
+	int ret;
+
+	ret = regulator_enable(ak4375->tvdd_supply);
+	if (ret < 0) {
+		dev_err(ak4375->dev, "failed to enable tvdd supply: %d\n", ret);
+		return ret;
+	}
+
+	if (!IS_ERR(ak4375->avdd_supply)) {
+		ret = regulator_enable(ak4375->avdd_supply);
+		if (ret < 0) {
+			dev_err(ak4375->dev, "failed to enable avdd supply: %d\n", ret);
+			return ret;
+		}
+	}
+
+	usleep_range(3000, 4000);
+
+	gpiod_set_value_cansleep(ak4375->pdn_gpiod, 1);
+	usleep_range(1000, 2000);
+
+	return 0;
+}
+
+static int ak4375_probe(struct snd_soc_component *component)
+{
+	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);
+
+	gpiod_set_value_cansleep(ak4375->pdn_gpiod, 0);
+	usleep_range(1000, 2000);
+
+	return ak4375_power_on(ak4375);
+}
+
+static void ak4375_remove(struct snd_soc_component *component)
+{
+	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);
+
+	ak4375_power_off(ak4375);
+}
+
+#ifdef CONFIG_PM
+static int __maybe_unused ak4375_runtime_suspend(struct device *dev)
+{
+	struct ak4375_priv *ak4375 = dev_get_drvdata(dev);
+
+	regcache_cache_only(ak4375->regmap, true);
+	ak4375_power_off(ak4375);
+
+	return 0;
+}
+
+static int __maybe_unused ak4375_runtime_resume(struct device *dev)
+{
+	struct ak4375_priv *ak4375 = dev_get_drvdata(dev);
+	int ret;
+
+	ak4375_power_off(ak4375);
+	ret = ak4375_power_on(ak4375);
+	if (ret < 0)
+		return ret;
+
+	regcache_cache_only(ak4375->regmap, false);
+	regcache_mark_dirty(ak4375->regmap);
+
+	return regcache_sync(ak4375->regmap);
+}
+#endif /* CONFIG_PM */
+
+static const struct snd_soc_component_driver soc_codec_dev_ak4375 = {
+	.probe			= ak4375_probe,
+	.remove			= ak4375_remove,
+	.controls		= ak4375_snd_controls,
+	.num_controls		= ARRAY_SIZE(ak4375_snd_controls),
+	.dapm_widgets		= ak4375_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(ak4375_dapm_widgets),
+	.dapm_routes		= ak4375_intercon,
+	.num_dapm_routes	= ARRAY_SIZE(ak4375_intercon),
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+	.non_legacy_dai_naming	= 1,
+};
+
+static const struct regmap_config ak4375_regmap = {
+	.reg_bits		= 8,
+	.val_bits		= 8,
+	.max_register		= AK4375_24_MODE_CONTROL,
+	.reg_defaults		= ak4375_reg_defaults,
+	.num_reg_defaults	= ARRAY_SIZE(ak4375_reg_defaults),
+	.cache_type		= REGCACHE_RBTREE,
+};
+
+static const struct ak4375_drvdata ak4375_drvdata = {
+	.dai_drv = &ak4375_dai,
+	.comp_drv = &soc_codec_dev_ak4375,
+};
+
+static const struct dev_pm_ops ak4375_pm = {
+	SET_RUNTIME_PM_OPS(ak4375_runtime_suspend, ak4375_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static int ak4375_i2c_probe(struct i2c_client *i2c)
+{
+	struct ak4375_priv *ak4375;
+	const struct ak4375_drvdata *drvdata;
+	unsigned int deviceid;
+	int ret;
+
+	ak4375 = devm_kzalloc(&i2c->dev, sizeof(*ak4375), GFP_KERNEL);
+	if (!ak4375)
+		return -ENOMEM;
+
+	ak4375->regmap = devm_regmap_init_i2c(i2c, &ak4375_regmap);
+	if (IS_ERR(ak4375->regmap))
+		return PTR_ERR(ak4375->regmap);
+
+	i2c_set_clientdata(i2c, ak4375);
+	ak4375->dev = &i2c->dev;
+
+	drvdata = of_device_get_match_data(&i2c->dev);
+
+	ak4375->avdd_supply = devm_regulator_get_optional(ak4375->dev, "avdd");
+	if (IS_ERR(ak4375->avdd_supply)) {
+		if (PTR_ERR(ak4375->avdd_supply) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+	}
+
+	ak4375->tvdd_supply = devm_regulator_get(ak4375->dev, "tvdd");
+	if (IS_ERR(ak4375->tvdd_supply)) {
+		if (PTR_ERR(ak4375->tvdd_supply) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		else
+			return PTR_ERR(ak4375->tvdd_supply);
+	}
+
+	ak4375->pdn_gpiod = devm_gpiod_get_optional(ak4375->dev, "pdn", GPIOD_OUT_LOW);
+	if (IS_ERR(ak4375->pdn_gpiod))
+		return PTR_ERR(ak4375->pdn_gpiod);
+
+	ret = ak4375_power_on(ak4375);
+	if (ret < 0)
+		return ret;
+
+	/* Don't read deviceid from cache */
+	regcache_cache_bypass(ak4375->regmap, true);
+
+	ret = regmap_read(ak4375->regmap, AK4375_15_AUDIO_IF_FORMAT, &deviceid);
+	if (ret < 0) {
+		dev_err(ak4375->dev, "unable to read DEVICEID!\n");
+		return ret;
+	}
+
+	regcache_cache_bypass(ak4375->regmap, false);
+
+	deviceid = (deviceid & AK4375_15_DEVICEID_MASK) >> 5;
+
+	switch (deviceid) {
+	case DEVICEID_AK4331:
+		dev_err(ak4375->dev, "found untested AK4331\n");
+		return -EINVAL;
+	case DEVICEID_AK4375:
+		dev_dbg(ak4375->dev, "found AK4375\n");
+		break;
+	case DEVICEID_AK4375A:
+		dev_dbg(ak4375->dev, "found AK4375A\n");
+		break;
+	case DEVICEID_AK4376A:
+		dev_err(ak4375->dev, "found unsupported AK4376/A!\n");
+		return -EINVAL;
+	case DEVICEID_AK4377:
+		dev_err(ak4375->dev, "found unsupported AK4377!\n");
+		return -EINVAL;
+	default:
+		dev_err(ak4375->dev, "unrecognized DEVICEID!\n");
+		return -EINVAL;
+	}
+
+	ret = devm_snd_soc_register_component(ak4375->dev, drvdata->comp_drv,
+					      drvdata->dai_drv, 1);
+	if (ret < 0) {
+		dev_err(ak4375->dev, "Failed to register CODEC: %d\n", ret);
+		return ret;
+	}
+
+	pm_runtime_enable(&i2c->dev);
+
+	return 0;
+}
+
+static int ak4375_i2c_remove(struct i2c_client *i2c)
+{
+	pm_runtime_disable(&i2c->dev);
+
+	return 0;
+}
+
+static const struct of_device_id ak4375_of_match[] = {
+	{ .compatible = "asahi-kasei,ak4375", .data = &ak4375_drvdata },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, ak4375_of_match);
+
+static struct i2c_driver ak4375_i2c_driver = {
+	.driver = {
+		.name = "ak4375",
+		.pm = &ak4375_pm,
+		.of_match_table = ak4375_of_match,
+	},
+	.probe_new = ak4375_i2c_probe,
+	.remove = ak4375_i2c_remove,
+};
+module_i2c_driver(ak4375_i2c_driver);
+
+MODULE_AUTHOR("Vincent Knecht <vincent.knecht@mailoo.org>");
+MODULE_DESCRIPTION("ASoC AK4375 DAC driver");
+MODULE_LICENSE("GPL");
