1 files changed, 588 insertions, 94 deletions

diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index 5504b92946e3..25f5e543ae8d 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -9,30 +9,46 @@
 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 //
 #include <linux/module.h>
+#include <linux/pm_runtime.h>
 #include <sound/soc.h>
+#include <linux/bitops.h>
 
 #define soc_component_ret(dai, ret) _soc_component_ret(dai, __func__, ret)
-static inline int _soc_component_ret(struct snd_soc_component *component,
-				     const char *func, int ret)
+static inline int _soc_component_ret(struct snd_soc_component *component, const char *func, int ret)
 {
-	/* Positive/Zero values are not errors */
-	if (ret >= 0)
-		return ret;
+	return snd_soc_ret(component->dev, ret,
+			   "at %s() on %s\n", func, component->name);
+}
 
-	/* Negative values might be errors */
-	switch (ret) {
-	case -EPROBE_DEFER:
-	case -ENOTSUPP:
-		break;
-	default:
-		dev_err(component->dev,
-			"ASoC: error at %s on %s: %d\n",
-			func, component->name, ret);
+#define soc_component_ret_reg_rw(dai, ret, reg) _soc_component_ret_reg_rw(dai, __func__, ret, reg)
+static inline int _soc_component_ret_reg_rw(struct snd_soc_component *component,
+					    const char *func, int ret, int reg)
+{
+	return snd_soc_ret(component->dev, ret,
+			   "at %s() on %s for register: [0x%08x]\n",
+			   func, component->name, reg);
+}
+
+static inline int soc_component_field_shift(struct snd_soc_component *component,
+					    unsigned int mask)
+{
+	if (!mask) {
+		dev_err(component->dev,	"ASoC: error field mask is zero for %s\n",
+			component->name);
+		return 0;
 	}
 
-	return ret;
+	return (ffs(mask) - 1);
 }
 
+/*
+ * We might want to check substream by using list.
+ * In such case, we can update these macros.
+ */
+#define soc_component_mark_push(component, substream, tgt)	((component)->mark_##tgt = substream)
+#define soc_component_mark_pop(component, tgt)	((component)->mark_##tgt = NULL)
+#define soc_component_mark_match(component, substream, tgt)	((component)->mark_##tgt == substream)
+
 void snd_soc_component_set_aux(struct snd_soc_component *component,
 			       struct snd_soc_aux_dev *aux)
 {
@@ -126,86 +142,75 @@ int snd_soc_component_set_bias_level(struct snd_soc_component *component,
 	return soc_component_ret(component, ret);
 }
 
-static int soc_component_pin(struct snd_soc_component *component,
-			     const char *pin,
-			     int (*pin_func)(struct snd_soc_dapm_context *dapm,
-					     const char *pin))
-{
-	struct snd_soc_dapm_context *dapm =
-		snd_soc_component_get_dapm(component);
-	char *full_name;
-	int ret;
-
-	if (!component->name_prefix) {
-		ret = pin_func(dapm, pin);
-		goto end;
-	}
-
-	full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
-	if (!full_name) {
-		ret = -ENOMEM;
-		goto end;
-	}
-
-	ret = pin_func(dapm, full_name);
-	kfree(full_name);
-end:
-	return soc_component_ret(component, ret);
-}
-
 int snd_soc_component_enable_pin(struct snd_soc_component *component,
 				 const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_enable_pin);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_enable_pin(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
 
 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
 					  const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_enable_pin_unlocked);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
 
 int snd_soc_component_disable_pin(struct snd_soc_component *component,
 				  const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_disable_pin);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_disable_pin(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
 
 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
 					   const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_disable_pin_unlocked);
+	struct snd_soc_dapm_context *dapm = 
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
 
 int snd_soc_component_nc_pin(struct snd_soc_component *component,
 			     const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_nc_pin);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_nc_pin(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
 
 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
 				      const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_nc_pin_unlocked);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
 
 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
 				     const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_get_pin_status);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_get_pin_status(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
 
 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
 				       const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_force_enable_pin);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_force_enable_pin(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
 
@@ -213,10 +218,49 @@ int snd_soc_component_force_enable_pin_unlocked(
 	struct snd_soc_component *component,
 	const char *pin)
 {
-	return soc_component_pin(component, pin, snd_soc_dapm_force_enable_pin_unlocked);
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(component);
+	return snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
 
+static void soc_get_kcontrol_name(struct snd_soc_component *component,
+				  char *buf, int size, const char * const ctl)
+{
+	/* When updating, change also snd_soc_dapm_widget_name_cmp() */
+	if (component->name_prefix)
+		snprintf(buf, size, "%s %s", component->name_prefix, ctl);
+	else
+		snprintf(buf, size, "%s", ctl);
+}
+
+struct snd_kcontrol *snd_soc_component_get_kcontrol(struct snd_soc_component *component,
+						    const char * const ctl)
+{
+	char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
+
+	soc_get_kcontrol_name(component, name, ARRAY_SIZE(name), ctl);
+
+	return snd_soc_card_get_kcontrol(component->card, name);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_get_kcontrol);
+
+int snd_soc_component_notify_control(struct snd_soc_component *component,
+				     const char * const ctl)
+{
+	struct snd_kcontrol *kctl;
+
+	kctl = snd_soc_component_get_kcontrol(component, ctl);
+	if (!kctl)
+		return soc_component_ret(component, -EINVAL);
+
+	snd_ctl_notify(component->card->snd_card,
+		       SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_notify_control);
+
 /**
  * snd_soc_component_set_jack - configure component jack.
  * @component: COMPONENTs
@@ -237,8 +281,28 @@ int snd_soc_component_set_jack(struct snd_soc_component *component,
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
 
+/**
+ * snd_soc_component_get_jack_type
+ * @component: COMPONENTs
+ *
+ * Returns the jack type of the component
+ * This can either be the supported type or one read from
+ * devicetree with the property: jack-type.
+ */
+int snd_soc_component_get_jack_type(
+	struct snd_soc_component *component)
+{
+	int ret = -ENOTSUPP;
+
+	if (component->driver->get_jack_type)
+		ret = component->driver->get_jack_type(component);
+
+	return soc_component_ret(component, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_get_jack_type);
+
 int snd_soc_component_module_get(struct snd_soc_component *component,
-				 int upon_open)
+				 void *mark, int upon_open)
 {
 	int ret = 0;
 
@@ -246,14 +310,24 @@ int snd_soc_component_module_get(struct snd_soc_component *component,
 	    !try_module_get(component->dev->driver->owner))
 		ret = -ENODEV;
 
+	/* mark module if succeeded */
+	if (ret == 0)
+		soc_component_mark_push(component, mark, module);
+
 	return soc_component_ret(component, ret);
 }
 
 void snd_soc_component_module_put(struct snd_soc_component *component,
-				  int upon_open)
+				  void *mark, int upon_open, int rollback)
 {
+	if (rollback && !soc_component_mark_match(component, mark, module))
+		return;
+
 	if (component->driver->module_get_upon_open == !!upon_open)
 		module_put(component->dev->driver->owner);
+
+	/* remove the mark from module */
+	soc_component_mark_pop(component, module);
 }
 
 int snd_soc_component_open(struct snd_soc_component *component,
@@ -264,17 +338,28 @@ int snd_soc_component_open(struct snd_soc_component *component,
 	if (component->driver->open)
 		ret = component->driver->open(component, substream);
 
+	/* mark substream if succeeded */
+	if (ret == 0)
+		soc_component_mark_push(component, substream, open);
+
 	return soc_component_ret(component, ret);
 }
 
 int snd_soc_component_close(struct snd_soc_component *component,
-			    struct snd_pcm_substream *substream)
+			    struct snd_pcm_substream *substream,
+			    int rollback)
 {
 	int ret = 0;
 
+	if (rollback && !soc_component_mark_match(component, substream, open))
+		return 0;
+
 	if (component->driver->close)
 		ret = component->driver->close(component, substream);
 
+	/* remove marked substream */
+	soc_component_mark_pop(component, open);
+
 	return soc_component_ret(component, ret);
 }
 
@@ -325,7 +410,7 @@ int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
 }
 
 int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
-					struct of_phandle_args *args,
+					const struct of_phandle_args *args,
 					const char **dai_name)
 {
 	if (component->driver->of_xlate_dai_name)
@@ -389,6 +474,253 @@ EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
 
 #endif
 
+int snd_soc_component_compr_open(struct snd_soc_component *component,
+				 struct snd_compr_stream *cstream)
+{
+	int ret = 0;
+
+	if (component->driver->compress_ops &&
+	    component->driver->compress_ops->open)
+		ret = component->driver->compress_ops->open(component, cstream);
+
+	/* mark substream if succeeded */
+	if (ret == 0)
+		soc_component_mark_push(component, cstream, compr_open);
+
+	return soc_component_ret(component, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_open);
+
+void snd_soc_component_compr_free(struct snd_soc_component *component,
+				  struct snd_compr_stream *cstream,
+				  int rollback)
+{
+	if (rollback && !soc_component_mark_match(component, cstream, compr_open))
+		return;
+
+	if (component->driver->compress_ops &&
+	    component->driver->compress_ops->free)
+		component->driver->compress_ops->free(component, cstream);
+
+	/* remove marked substream */
+	soc_component_mark_pop(component, compr_open);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_free);
+
+int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->trigger) {
+			ret = component->driver->compress_ops->trigger(
+				component, cstream, cmd);
+			if (ret < 0)
+				return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_trigger);
+
+int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
+				       struct snd_compr_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->set_params) {
+			ret = component->driver->compress_ops->set_params(
+				component, cstream, params);
+			if (ret < 0)
+				return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_params);
+
+int snd_soc_component_compr_get_params(struct snd_compr_stream *cstream,
+				       struct snd_codec *params)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->get_params) {
+			ret = component->driver->compress_ops->get_params(
+				component, cstream, params);
+			return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_params);
+
+int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream,
+				     struct snd_compr_caps *caps)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret = 0;
+
+	snd_soc_dpcm_mutex_lock(rtd);
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->get_caps) {
+			ret = component->driver->compress_ops->get_caps(
+				component, cstream, caps);
+			break;
+		}
+	}
+
+	snd_soc_dpcm_mutex_unlock(rtd);
+
+	return soc_component_ret(component, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_caps);
+
+int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
+					   struct snd_compr_codec_caps *codec)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret = 0;
+
+	snd_soc_dpcm_mutex_lock(rtd);
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->get_codec_caps) {
+			ret = component->driver->compress_ops->get_codec_caps(
+				component, cstream, codec);
+			break;
+		}
+	}
+
+	snd_soc_dpcm_mutex_unlock(rtd);
+
+	return soc_component_ret(component, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_codec_caps);
+
+int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->ack) {
+			ret = component->driver->compress_ops->ack(
+				component, cstream, bytes);
+			if (ret < 0)
+				return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_ack);
+
+int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
+				    struct snd_compr_tstamp *tstamp)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->pointer) {
+			ret = component->driver->compress_ops->pointer(
+				component, cstream, tstamp);
+			return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_pointer);
+
+int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
+				 char __user *buf, size_t count)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret = 0;
+
+	snd_soc_dpcm_mutex_lock(rtd);
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->copy) {
+			ret = component->driver->compress_ops->copy(
+				component, cstream, buf, count);
+			break;
+		}
+	}
+
+	snd_soc_dpcm_mutex_unlock(rtd);
+
+	return soc_component_ret(component, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_copy);
+
+int snd_soc_component_compr_set_metadata(struct snd_compr_stream *cstream,
+					 struct snd_compr_metadata *metadata)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->set_metadata) {
+			ret = component->driver->compress_ops->set_metadata(
+				component, cstream, metadata);
+			if (ret < 0)
+				return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_metadata);
+
+int snd_soc_component_compr_get_metadata(struct snd_compr_stream *cstream,
+					 struct snd_compr_metadata *metadata)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_component *component;
+	int i, ret;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (component->driver->compress_ops &&
+		    component->driver->compress_ops->get_metadata) {
+			ret = component->driver->compress_ops->get_metadata(
+				component, cstream, metadata);
+			return soc_component_ret(component, ret);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_metadata);
+
 static unsigned int soc_component_read_no_lock(
 	struct snd_soc_component *component,
 	unsigned int reg)
@@ -406,7 +738,7 @@ static unsigned int soc_component_read_no_lock(
 		ret = -EIO;
 
 	if (ret < 0)
-		return soc_component_ret(component, ret);
+		return soc_component_ret_reg_rw(component, ret, reg);
 
 	return val;
 }
@@ -442,7 +774,7 @@ static int soc_component_write_no_lock(
 	else if (component->driver->write)
 		ret = component->driver->write(component, reg, val);
 
-	return soc_component_ret(component, ret);
+	return soc_component_ret_reg_rw(component, ret, reg);
 }
 
 /**
@@ -484,7 +816,7 @@ static int snd_soc_component_update_bits_legacy(
 
 	mutex_unlock(&component->io_mutex);
 
-	return soc_component_ret(component, ret);
+	return soc_component_ret_reg_rw(component, ret, reg);
 }
 
 /**
@@ -512,7 +844,7 @@ int snd_soc_component_update_bits(struct snd_soc_component *component,
 							   mask, val, &change);
 
 	if (ret < 0)
-		return soc_component_ret(component, ret);
+		return soc_component_ret_reg_rw(component, ret, reg);
 	return change;
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
@@ -548,12 +880,53 @@ int snd_soc_component_update_bits_async(struct snd_soc_component *component,
 							   mask, val, &change);
 
 	if (ret < 0)
-		return soc_component_ret(component, ret);
+		return soc_component_ret_reg_rw(component, ret, reg);
 	return change;
 }
 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
 
 /**
+ * snd_soc_component_read_field() - Read register field value
+ * @component: Component to read from
+ * @reg: Register to read
+ * @mask: mask of the register field
+ *
+ * Return: read value of register field.
+ */
+unsigned int snd_soc_component_read_field(struct snd_soc_component *component,
+					  unsigned int reg, unsigned int mask)
+{
+	unsigned int val;
+
+	val = snd_soc_component_read(component, reg);
+
+	val = (val & mask) >> soc_component_field_shift(component, mask);
+
+	return val;
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_read_field);
+
+/**
+ * snd_soc_component_write_field() - write to register field
+ * @component: Component to write to
+ * @reg: Register to write
+ * @mask: mask of the register field to update
+ * @val: value of the field to write
+ *
+ * Return: 1 for change, otherwise 0.
+ */
+int snd_soc_component_write_field(struct snd_soc_component *component,
+				  unsigned int reg, unsigned int mask,
+				  unsigned int val)
+{
+
+	val = (val << soc_component_field_shift(component, mask)) & mask;
+
+	return snd_soc_component_update_bits(component, reg, mask, val);
+}
+EXPORT_SYMBOL_GPL(snd_soc_component_write_field);
+
+/**
  * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
  * @component: Component for which to wait
  *
@@ -592,7 +965,7 @@ EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
 
 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i;
 
@@ -604,10 +977,52 @@ int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
 	return 0;
 }
 
+static bool snd_soc_component_is_codec_on_rtd(struct snd_soc_pcm_runtime *rtd,
+					      struct snd_soc_component *component)
+{
+	struct snd_soc_dai *dai;
+	int i;
+
+	for_each_rtd_codec_dais(rtd, i, dai) {
+		if (dai->component == component)
+			return true;
+	}
+
+	return false;
+}
+
+void snd_soc_pcm_component_delay(struct snd_pcm_substream *substream,
+				 snd_pcm_sframes_t *cpu_delay,
+				 snd_pcm_sframes_t *codec_delay)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct snd_soc_component *component;
+	snd_pcm_sframes_t delay;
+	int i;
+
+	/*
+	 * We're looking for the delay through the full audio path so it needs to
+	 * be the maximum of the Components doing transmit and the maximum of the
+	 * Components doing receive (ie, all CPUs and all CODECs) rather than
+	 * just the maximum of all Components.
+	 */
+	for_each_rtd_components(rtd, i, component) {
+		if (!component->driver->delay)
+			continue;
+
+		delay = component->driver->delay(component, substream);
+
+		if (snd_soc_component_is_codec_on_rtd(rtd, component))
+			*codec_delay = max(*codec_delay, delay);
+		else
+			*cpu_delay = max(*cpu_delay, delay);
+	}
+}
+
 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
 				unsigned int cmd, void *arg)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i;
 
@@ -624,7 +1039,7 @@ int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
 
 int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i, ret;
 
@@ -640,22 +1055,20 @@ int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
-				    int channel, unsigned long pos,
-				    void __user *buf, unsigned long bytes)
+int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
+			       int channel, unsigned long pos,
+			       struct iov_iter *iter, unsigned long bytes)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i;
 
 	/* FIXME. it returns 1st copy now */
 	for_each_rtd_components(rtd, i, component)
-		if (component->driver->copy_user)
-			return soc_component_ret(
-				component,
-				component->driver->copy_user(
-					component, substream, channel,
-					pos, buf, bytes));
+		if (component->driver->copy)
+			return soc_component_ret(component,
+				component->driver->copy(component, substream,
+					channel, pos, iter, bytes));
 
 	return -EINVAL;
 }
@@ -663,7 +1076,7 @@ int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
 struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
 					unsigned long offset)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	struct page *page;
 	int i;
@@ -684,7 +1097,7 @@ struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
 			       struct vm_area_struct *vma)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i;
 
@@ -731,7 +1144,7 @@ void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
 
 int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i, ret;
 
@@ -747,10 +1160,9 @@ int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
 }
 
 int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
-				    struct snd_pcm_hw_params *params,
-				    struct snd_soc_component **last)
+				    struct snd_pcm_hw_params *params)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i, ret;
 
@@ -758,50 +1170,132 @@ int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
 		if (component->driver->hw_params) {
 			ret = component->driver->hw_params(component,
 							   substream, params);
-			if (ret < 0) {
-				*last = component;
+			if (ret < 0)
 				return soc_component_ret(component, ret);
-			}
 		}
+		/* mark substream if succeeded */
+		soc_component_mark_push(component, substream, hw_params);
 	}
 
-	*last = NULL;
 	return 0;
 }
 
 void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
-				   struct snd_soc_component *last)
+				   int rollback)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
 	int i, ret;
 
 	for_each_rtd_components(rtd, i, component) {
-		if (component == last)
-			break;
+		if (rollback && !soc_component_mark_match(component, substream, hw_params))
+			continue;
 
 		if (component->driver->hw_free) {
 			ret = component->driver->hw_free(component, substream);
 			if (ret < 0)
 				soc_component_ret(component, ret);
 		}
+
+		/* remove marked substream */
+		soc_component_mark_pop(component, hw_params);
 	}
 }
 
+static int soc_component_trigger(struct snd_soc_component *component,
+				 struct snd_pcm_substream *substream,
+				 int cmd)
+{
+	int ret = 0;
+
+	if (component->driver->trigger)
+		ret = component->driver->trigger(component, substream, cmd);
+
+	return soc_component_ret(component, ret);
+}
+
 int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
-				  int cmd)
+				  int cmd, int rollback)
 {
-	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 	struct snd_soc_component *component;
-	int i, ret;
+	int i, r, ret = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		for_each_rtd_components(rtd, i, component) {
+			ret = soc_component_trigger(component, substream, cmd);
+			if (ret < 0)
+				break;
+			soc_component_mark_push(component, substream, trigger);
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		for_each_rtd_components(rtd, i, component) {
+			if (rollback && !soc_component_mark_match(component, substream, trigger))
+				continue;
+
+			r = soc_component_trigger(component, substream, cmd);
+			if (r < 0)
+				ret = r; /* use last ret */
+			soc_component_mark_pop(component, trigger);
+		}
+	}
+
+	return ret;
+}
+
+int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
+					 void *stream)
+{
+	struct snd_soc_component *component;
+	int i;
 
 	for_each_rtd_components(rtd, i, component) {
-		if (component->driver->trigger) {
-			ret = component->driver->trigger(component, substream, cmd);
-			if (ret < 0)
-				return soc_component_ret(component, ret);
+		int ret = pm_runtime_get_sync(component->dev);
+		if (ret < 0 && ret != -EACCES) {
+			pm_runtime_put_noidle(component->dev);
+			return soc_component_ret(component, ret);
 		}
+		/* mark stream if succeeded */
+		soc_component_mark_push(component, stream, pm);
 	}
 
 	return 0;
 }
+
+void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
+					  void *stream, int rollback)
+{
+	struct snd_soc_component *component;
+	int i;
+
+	for_each_rtd_components(rtd, i, component) {
+		if (rollback && !soc_component_mark_match(component, stream, pm))
+			continue;
+
+		pm_runtime_mark_last_busy(component->dev);
+		pm_runtime_put_autosuspend(component->dev);
+
+		/* remove marked stream */
+		soc_component_mark_pop(component, pm);
+	}
+}
+
+int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct snd_soc_component *component;
+	int i;
+
+	/* FIXME: use 1st pointer */
+	for_each_rtd_components(rtd, i, component)
+		if (component->driver->ack)
+			return component->driver->ack(component, substream);
+
+	return 0;
+}