diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index db577e4..f7eb21e 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -656,8 +656,8 @@
 				codec->driver->suspend(codec);
 				codec->suspended = 1;
 				codec->cache_sync = 1;
-				if (codec->using_regmap)
-					regcache_mark_dirty(codec->control_data);
+				if (codec->component.regmap)
+					regcache_mark_dirty(codec->component.regmap);
 				/* deactivate pins to sleep state */
 				pinctrl_pm_select_sleep_state(codec->dev);
 				break;
@@ -2971,7 +2971,7 @@
 	struct soc_bytes *params = (void *)kcontrol->private_value;
 
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
-	uinfo->count = params->num_regs * codec->val_bytes;
+	uinfo->count = params->num_regs * codec->component.val_bytes;
 
 	return 0;
 }
@@ -2984,16 +2984,16 @@
 	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 	int ret;
 
-	if (codec->using_regmap)
-		ret = regmap_raw_read(codec->control_data, params->base,
+	if (codec->component.regmap)
+		ret = regmap_raw_read(codec->component.regmap, params->base,
 				      ucontrol->value.bytes.data,
-				      params->num_regs * codec->val_bytes);
+				      params->num_regs * codec->component.val_bytes);
 	else
 		ret = -EINVAL;
 
 	/* Hide any masked bytes to ensure consistent data reporting */
 	if (ret == 0 && params->mask) {
-		switch (codec->val_bytes) {
+		switch (codec->component.val_bytes) {
 		case 1:
 			ucontrol->value.bytes.data[0] &= ~params->mask;
 			break;
@@ -3023,10 +3023,10 @@
 	unsigned int val, mask;
 	void *data;
 
-	if (!codec->using_regmap)
+	if (!codec->component.regmap)
 		return -EINVAL;
 
-	len = params->num_regs * codec->val_bytes;
+	len = params->num_regs * codec->component.val_bytes;
 
 	data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
 	if (!data)
@@ -3038,27 +3038,27 @@
 	 * copy.
 	 */
 	if (params->mask) {
-		ret = regmap_read(codec->control_data, params->base, &val);
+		ret = regmap_read(codec->component.regmap, params->base, &val);
 		if (ret != 0)
 			goto out;
 
 		val &= params->mask;
 
-		switch (codec->val_bytes) {
+		switch (codec->component.val_bytes) {
 		case 1:
 			((u8 *)data)[0] &= ~params->mask;
 			((u8 *)data)[0] |= val;
 			break;
 		case 2:
 			mask = ~params->mask;
-			ret = regmap_parse_val(codec->control_data,
+			ret = regmap_parse_val(codec->component.regmap,
 							&mask, &mask);
 			if (ret != 0)
 				goto out;
 
 			((u16 *)data)[0] &= mask;
 
-			ret = regmap_parse_val(codec->control_data,
+			ret = regmap_parse_val(codec->component.regmap,
 							&val, &val);
 			if (ret != 0)
 				goto out;
@@ -3067,14 +3067,14 @@
 			break;
 		case 4:
 			mask = ~params->mask;
-			ret = regmap_parse_val(codec->control_data,
+			ret = regmap_parse_val(codec->component.regmap,
 							&mask, &mask);
 			if (ret != 0)
 				goto out;
 
 			((u32 *)data)[0] &= mask;
 
-			ret = regmap_parse_val(codec->control_data,
+			ret = regmap_parse_val(codec->component.regmap,
 							&val, &val);
 			if (ret != 0)
 				goto out;
@@ -3087,7 +3087,7 @@
 		}
 	}
 
-	ret = regmap_raw_write(codec->control_data, params->base,
+	ret = regmap_raw_write(codec->component.regmap, params->base,
 			       data, len);
 
 out:
@@ -3143,7 +3143,7 @@
 	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 	unsigned int regbase = mc->regbase;
 	unsigned int regcount = mc->regcount;
-	unsigned int regwshift = codec->val_bytes * BITS_PER_BYTE;
+	unsigned int regwshift = codec->component.val_bytes * BITS_PER_BYTE;
 	unsigned int regwmask = (1<<regwshift)-1;
 	unsigned int invert = mc->invert;
 	unsigned long mask = (1UL<<mc->nbits)-1;
@@ -3189,7 +3189,7 @@
 	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 	unsigned int regbase = mc->regbase;
 	unsigned int regcount = mc->regcount;
-	unsigned int regwshift = codec->val_bytes * BITS_PER_BYTE;
+	unsigned int regwshift = codec->component.val_bytes * BITS_PER_BYTE;
 	unsigned int regwmask = (1<<regwshift)-1;
 	unsigned int invert = mc->invert;
 	unsigned long mask = (1UL<<mc->nbits)-1;
@@ -3837,6 +3837,8 @@
 		return -ENOMEM;
 	}
 
+	mutex_init(&cmpnt->io_mutex);
+
 	cmpnt->name = fmt_single_name(dev, &cmpnt->id);
 	if (!cmpnt->name) {
 		dev_err(dev, "ASoC: Failed to simplifying name\n");
@@ -3917,6 +3919,24 @@
 }
 EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
 
+static int snd_soc_platform_drv_write(struct snd_soc_component *component,
+	unsigned int reg, unsigned int val)
+{
+	struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
+
+	return platform->driver->write(platform, reg, val);
+}
+
+static int snd_soc_platform_drv_read(struct snd_soc_component *component,
+	unsigned int reg, unsigned int *val)
+{
+	struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
+
+	*val = platform->driver->read(platform, reg);
+
+	return 0;
+}
+
 /**
  * snd_soc_add_platform - Add a platform to the ASoC core
  * @dev: The parent device for the platform
@@ -3937,8 +3957,12 @@
 	platform->driver = platform_drv;
 	platform->dapm.dev = dev;
 	platform->dapm.platform = platform;
+	platform->dapm.component = &platform->component;
 	platform->dapm.stream_event = platform_drv->stream_event;
-	mutex_init(&platform->mutex);
+	if (platform_drv->write)
+		platform->component.write = snd_soc_platform_drv_write;
+	if (platform_drv->read)
+		platform->component.read = snd_soc_platform_drv_read;
 
 	/* register component */
 	ret = __snd_soc_register_component(dev, &platform->component,
@@ -4067,6 +4091,24 @@
 			stream->formats |= codec_format_map[i];
 }
 
+static int snd_soc_codec_drv_write(struct snd_soc_component *component,
+	unsigned int reg, unsigned int val)
+{
+	struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
+
+	return codec->driver->write(codec, reg, val);
+}
+
+static int snd_soc_codec_drv_read(struct snd_soc_component *component,
+	unsigned int reg, unsigned int *val)
+{
+	struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
+
+	*val = codec->driver->read(codec, reg);
+
+	return 0;
+}
+
 /**
  * snd_soc_register_codec - Register a codec with the ASoC core
  *
@@ -4094,29 +4136,33 @@
 		goto fail_codec;
 	}
 
-	codec->write = codec_drv->write;
-	codec->read = codec_drv->read;
+	if (codec_drv->write)
+		codec->component.write = snd_soc_codec_drv_write;
+	if (codec_drv->read)
+		codec->component.read = snd_soc_codec_drv_read;
 	codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time;
 	codec->dapm.bias_level = SND_SOC_BIAS_OFF;
 	codec->dapm.dev = dev;
 	codec->dapm.codec = codec;
+	codec->dapm.component = &codec->component;
 	codec->dapm.seq_notifier = codec_drv->seq_notifier;
 	codec->dapm.stream_event = codec_drv->stream_event;
 	codec->dev = dev;
 	codec->driver = codec_drv;
 	codec->num_dai = num_dai;
-	codec->val_bytes = codec_drv->reg_word_size;
+	codec->component.val_bytes = codec_drv->reg_word_size;
 	mutex_init(&codec->mutex);
 
-	if (!codec->write) {
+	if (!codec->component.write) {
 		if (codec_drv->get_regmap)
 			regmap = codec_drv->get_regmap(dev);
 		else
 			regmap = dev_get_regmap(dev, NULL);
 
 		if (regmap) {
-			ret = snd_soc_codec_set_cache_io(codec, regmap);
-			if (ret && ret != -ENOTSUPP) {
+			ret = snd_soc_component_init_io(&codec->component,
+				regmap);
+			if (ret) {
 				dev_err(codec->dev,
 						"Failed to set cache I/O:%d\n",
 						ret);
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index f4ba7b4..da266e1 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -379,86 +379,24 @@
 static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg,
 	unsigned int *value)
 {
-	if (w->codec) {
-		*value = snd_soc_read(w->codec, reg);
-		return 0;
-	} else if (w->platform) {
-		*value = snd_soc_platform_read(w->platform, reg);
-		return 0;
-	}
-
-	dev_err(w->dapm->dev, "ASoC: no valid widget read method\n");
-	return -1;
-}
-
-static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg,
-	unsigned int val)
-{
-	if (w->codec)
-		return snd_soc_write(w->codec, reg, val);
-	else if (w->platform)
-		return snd_soc_platform_write(w->platform, reg, val);
-
-	dev_err(w->dapm->dev, "ASoC: no valid widget write method\n");
-	return -1;
-}
-
-static inline void soc_widget_lock(struct snd_soc_dapm_widget *w)
-{
-	if (w->codec && !w->codec->using_regmap)
-		mutex_lock(&w->codec->mutex);
-	else if (w->platform)
-		mutex_lock(&w->platform->mutex);
-}
-
-static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w)
-{
-	if (w->codec && !w->codec->using_regmap)
-		mutex_unlock(&w->codec->mutex);
-	else if (w->platform)
-		mutex_unlock(&w->platform->mutex);
-}
-
-static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm)
-{
-	if (dapm->codec && dapm->codec->using_regmap)
-		regmap_async_complete(dapm->codec->control_data);
+	if (!w->dapm->component)
+		return -EIO;
+	return snd_soc_component_read(w->dapm->component, reg, value);
 }
 
 static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
 	int reg, unsigned int mask, unsigned int value)
 {
-	bool change;
-	unsigned int old, new;
-	int ret;
+	if (!w->dapm->component)
+		return -EIO;
+	return snd_soc_component_update_bits_async(w->dapm->component, reg,
+		mask, value);
+}
 
-	if (w->codec && w->codec->using_regmap) {
-		ret = regmap_update_bits_check_async(w->codec->control_data,
-						     reg, mask, value,
-						     &change);
-		if (ret != 0)
-			return ret;
-	} else {
-		soc_widget_lock(w);
-		ret = soc_widget_read(w, reg, &old);
-		if (ret < 0) {
-			soc_widget_unlock(w);
-			return ret;
-		}
-
-		new = (old & ~mask) | (value & mask);
-		change = old != new;
-		if (change) {
-			ret = soc_widget_write(w, reg, new);
-			if (ret < 0) {
-				soc_widget_unlock(w);
-				return ret;
-			}
-		}
-		soc_widget_unlock(w);
-	}
-
-	return change;
+static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm)
+{
+	if (dapm->component)
+		snd_soc_component_async_complete(dapm->component);
 }
 
 /**
diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c
index dc0c09d..ac64fd7 100644
--- a/sound/soc/soc-io.c
+++ b/sound/soc/soc-io.c
@@ -19,24 +19,205 @@
 
 #include <trace/events/asoc.h>
 
-unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
+/**
+ * snd_soc_component_read() - Read register value
+ * @component: Component to read from
+ * @reg: Register to read
+ * @val: Pointer to where the read value is stored
+ *
+ * Return: 0 on success, a negative error code otherwise.
+ */
+int snd_soc_component_read(struct snd_soc_component *component,
+	unsigned int reg, unsigned int *val)
 {
-	unsigned int ret;
+	int ret;
 
-	ret = codec->read(codec, reg);
-	dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
-	trace_snd_soc_reg_read(codec, reg, ret);
+	if (component->regmap)
+		ret = regmap_read(component->regmap, reg, val);
+	else if (component->read)
+		ret = component->read(component, reg, val);
+	else
+		ret = -EIO;
+
+	dev_dbg(component->dev, "read %x => %x\n", reg, *val);
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(snd_soc_component_read);
+
+/**
+ * snd_soc_component_write() - Write register value
+ * @component: Component to write to
+ * @reg: Register to write
+ * @val: Value to write to the register
+ *
+ * Return: 0 on success, a negative error code otherwise.
+ */
+int snd_soc_component_write(struct snd_soc_component *component,
+	unsigned int reg, unsigned int val)
+{
+	dev_dbg(component->dev, "write %x = %x\n", reg, val);
+
+	if (component->regmap)
+		return regmap_write(component->regmap, reg, val);
+	else if (component->write)
+		return component->write(component, reg, val);
+	else
+		return -EIO;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_write);
+
+static int snd_soc_component_update_bits_legacy(
+	struct snd_soc_component *component, unsigned int reg,
+	unsigned int mask, unsigned int val, bool *change)
+{
+	unsigned int old, new;
+	int ret;
+
+	if (!component->read || !component->write)
+		return -EIO;
+
+	mutex_lock(&component->io_mutex);
+
+	ret = component->read(component, reg, &old);
+	if (ret < 0)
+		goto out_unlock;
+
+	new = (old & ~mask) | (val & mask);
+	*change = old != new;
+	if (*change)
+		ret = component->write(component, reg, new);
+out_unlock:
+	mutex_unlock(&component->io_mutex);
+
+	return ret;
+}
+
+/**
+ * snd_soc_component_update_bits() - Perform read/modify/write cycle
+ * @component: Component to update
+ * @reg: Register to update
+ * @mask: Mask that specifies which bits to update
+ * @val: New value for the bits specified by mask
+ *
+ * Return: 1 if the operation was successful and the value of the register
+ * changed, 0 if the operation was successful, but the value did not change.
+ * Returns a negative error code otherwise.
+ */
+int snd_soc_component_update_bits(struct snd_soc_component *component,
+	unsigned int reg, unsigned int mask, unsigned int val)
+{
+	bool change;
+	int ret;
+
+	if (component->regmap)
+		ret = regmap_update_bits_check(component->regmap, reg, mask,
+			val, &change);
+	else
+		ret = snd_soc_component_update_bits_legacy(component, reg,
+			mask, val, &change);
+
+	if (ret < 0)
+		return ret;
+	return change;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
+
+/**
+ * snd_soc_component_update_bits_async() - Perform asynchronous
+ *  read/modify/write cycle
+ * @component: Component to update
+ * @reg: Register to update
+ * @mask: Mask that specifies which bits to update
+ * @val: New value for the bits specified by mask
+ *
+ * This function is similar to snd_soc_component_update_bits(), but the update
+ * operation is scheduled asynchronously. This means it may not be completed
+ * when the function returns. To make sure that all scheduled updates have been
+ * completed snd_soc_component_async_complete() must be called.
+ *
+ * Return: 1 if the operation was successful and the value of the register
+ * changed, 0 if the operation was successful, but the value did not change.
+ * Returns a negative error code otherwise.
+ */
+int snd_soc_component_update_bits_async(struct snd_soc_component *component,
+	unsigned int reg, unsigned int mask, unsigned int val)
+{
+	bool change;
+	int ret;
+
+	if (component->regmap)
+		ret = regmap_update_bits_check_async(component->regmap, reg,
+			mask, val, &change);
+	else
+		ret = snd_soc_component_update_bits_legacy(component, reg,
+			mask, val, &change);
+
+	if (ret < 0)
+		return ret;
+	return change;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
+
+/**
+ * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
+ * @component: Component for which to wait
+ *
+ * This function blocks until all asynchronous I/O which has previously been
+ * scheduled using snd_soc_component_update_bits_async() has completed.
+ */
+void snd_soc_component_async_complete(struct snd_soc_component *component)
+{
+	if (component->regmap)
+		regmap_async_complete(component->regmap);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
+
+/**
+ * snd_soc_component_test_bits - Test register for change
+ * @component: component
+ * @reg: Register to test
+ * @mask: Mask that specifies which bits to test
+ * @value: Value to test against
+ *
+ * Tests a register with a new value and checks if the new value is
+ * different from the old value.
+ *
+ * Return: 1 for change, otherwise 0.
+ */
+int snd_soc_component_test_bits(struct snd_soc_component *component,
+	unsigned int reg, unsigned int mask, unsigned int value)
+{
+	unsigned int old, new;
+	int ret;
+
+	ret = snd_soc_component_read(component, reg, &old);
+	if (ret < 0)
+		return ret;
+	new = (old & ~mask) | value;
+	return old != new;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
+
+unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
+{
+	unsigned int val;
+	int ret;
+
+	ret = snd_soc_component_read(&codec->component, reg, &val);
+	if (ret < 0)
+		return -1;
+	trace_snd_soc_reg_read(codec, reg, val);
+
+	return val;
+}
 EXPORT_SYMBOL_GPL(snd_soc_read);
 
 int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg,
 	unsigned int val)
 {
-	dev_dbg(codec->dev, "write %x = %x\n", reg, val);
 	trace_snd_soc_reg_write(codec, reg, val);
-	return codec->write(codec, reg, val);
+	return snd_soc_component_write(&codec->component, reg, val);
 }
 EXPORT_SYMBOL_GPL(snd_soc_write);
 
@@ -54,29 +235,8 @@
 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned int reg,
 				unsigned int mask, unsigned int value)
 {
-	bool change;
-	unsigned int old, new;
-	int ret;
-
-	if (codec->using_regmap) {
-		ret = regmap_update_bits_check(codec->control_data, reg,
-					       mask, value, &change);
-	} else {
-		ret = snd_soc_read(codec, reg);
-		if (ret < 0)
-			return ret;
-
-		old = ret;
-		new = (old & ~mask) | (value & mask);
-		change = old != new;
-		if (change)
-			ret = snd_soc_write(codec, reg, new);
-	}
-
-	if (ret < 0)
-		return ret;
-
-	return change;
+	return snd_soc_component_update_bits(&codec->component, reg, mask,
+		value);
 }
 EXPORT_SYMBOL_GPL(snd_soc_update_bits);
 
@@ -95,13 +255,8 @@
 			       unsigned int reg, unsigned int mask,
 			       unsigned int value)
 {
-	int change;
-
-	mutex_lock(&codec->mutex);
-	change = snd_soc_update_bits(codec, reg, mask, value);
-	mutex_unlock(&codec->mutex);
-
-	return change;
+	return snd_soc_component_update_bits(&codec->component, reg, mask,
+		value);
 }
 EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
 
@@ -120,115 +275,58 @@
 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,
 				unsigned int mask, unsigned int value)
 {
-	int change;
-	unsigned int old, new;
-
-	old = snd_soc_read(codec, reg);
-	new = (old & ~mask) | value;
-	change = old != new;
-
-	return change;
+	return snd_soc_component_test_bits(&codec->component, reg, mask, value);
 }
 EXPORT_SYMBOL_GPL(snd_soc_test_bits);
 
 int snd_soc_platform_read(struct snd_soc_platform *platform,
 					unsigned int reg)
 {
-	unsigned int ret;
+	unsigned int val;
+	int ret;
 
-	if (!platform->driver->read) {
-		dev_err(platform->dev, "ASoC: platform has no read back\n");
+	ret = snd_soc_component_read(&platform->component, reg, &val);
+	if (ret < 0)
 		return -1;
-	}
 
-	ret = platform->driver->read(platform, reg);
-	dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
-	trace_snd_soc_preg_read(platform, reg, ret);
+	trace_snd_soc_preg_read(platform, reg, val);
 
-	return ret;
+	return val;
 }
 EXPORT_SYMBOL_GPL(snd_soc_platform_read);
 
 int snd_soc_platform_write(struct snd_soc_platform *platform,
 					 unsigned int reg, unsigned int val)
 {
-	if (!platform->driver->write) {
-		dev_err(platform->dev, "ASoC: platform has no write back\n");
-		return -1;
-	}
-
-	dev_dbg(platform->dev, "write %x = %x\n", reg, val);
 	trace_snd_soc_preg_write(platform, reg, val);
-	return platform->driver->write(platform, reg, val);
+	return snd_soc_component_write(&platform->component, reg, val);
 }
 EXPORT_SYMBOL_GPL(snd_soc_platform_write);
 
-#ifdef CONFIG_REGMAP
-static int hw_write(struct snd_soc_codec *codec, unsigned int reg,
-		    unsigned int value)
-{
-	return regmap_write(codec->control_data, reg, value);
-}
-
-static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg)
-{
-	int ret;
-	unsigned int val;
-
-	ret = regmap_read(codec->control_data, reg, &val);
-	if (ret == 0)
-		return val;
-	else
-		return -1;
-}
-
 /**
- * snd_soc_codec_set_cache_io: Set up standard I/O functions.
+ * snd_soc_component_init_io() - Initialize regmap IO
  *
- * @codec: CODEC to configure.
- * @map: Register map to write to
+ * @component: component to initialize
+ * @regmap: regmap instance to use for IO operations
  *
- * Register formats are frequently shared between many I2C and SPI
- * devices.  In order to promote code reuse the ASoC core provides
- * some standard implementations of CODEC read and write operations
- * which can be set up using this function.
- *
- * The caller is responsible for allocating and initialising the
- * actual cache.
- *
- * Note that at present this code cannot be used by CODECs with
- * volatile registers.
+ * Return: 0 on success, a negative error code otherwise
  */
-int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
-			       struct regmap *regmap)
+int snd_soc_component_init_io(struct snd_soc_component *component,
+	struct regmap *regmap)
 {
 	int ret;
 
 	if (!regmap)
 		return -EINVAL;
 
-	/* Device has made its own regmap arrangements */
-	codec->control_data = regmap;
-
-	codec->write = hw_write;
-	codec->read = hw_read;
-
-	ret = regmap_get_val_bytes(codec->control_data);
+	ret = regmap_get_val_bytes(regmap);
 	/* Errors are legitimate for non-integer byte
 	 * multiples */
 	if (ret > 0)
-		codec->val_bytes = ret;
+		component->val_bytes = ret;
 
-	codec->using_regmap = true;
+	component->regmap = regmap;
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io);
-#else
-int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
-			       struct regmap *regmap)
-{
-	return -ENOTSUPP;
-}
-EXPORT_SYMBOL_GPL(snd_soc_codec_set_cache_io);
-#endif
+EXPORT_SYMBOL_GPL(snd_soc_component_init_io);