[PATCH v2 21/29] ASoC: soc-component: move snd_soc_component_stream_event()

[Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>]

From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>

Current soc-dapm / soc-core are using a long way round to call
.stream_event.

	if (driver->stream_event)
		dapm->stream_event = ...;
	...
	if (dapm->stream_event)
		ret = dapm->stream_event(...);

We can directly call it via driver->stream_event.
One note here is that both Card and Component have dapm,
but, Card's dapm doesn't have dapm->component.
We need to check it.

This patch moves snd_soc_component_stream_event() to soc-component.c
and updates parameters.
dapm->stream_event is no longer needed

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
v1 -> v2

	- remove dapm->stream_event

 include/sound/soc-component.h |  2 ++
 include/sound/soc-dapm.h      |  1 -
 sound/soc/soc-component.c     |  9 +++++++++
 sound/soc/soc-core.c          | 10 ----------
 sound/soc/soc-dapm.c          |  9 +++++++--
 5 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index 7ac903c..1f84f04 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -283,6 +283,8 @@ int snd_soc_component_set_jack(struct snd_soc_component *component,
 
 void snd_soc_component_seq_notifier(struct snd_soc_component *component,
 				    enum snd_soc_dapm_type type, int subseq);
+int snd_soc_component_stream_event(struct snd_soc_component *component,
+				   int event);
 
 #ifdef CONFIG_REGMAP
 void snd_soc_component_init_regmap(struct snd_soc_component *component,
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index a03db6f..c2f14a3 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -670,7 +670,6 @@ struct snd_soc_dapm_context {
 	enum snd_soc_bias_level target_bias_level;
 	struct list_head list;
 
-	int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 	int (*set_bias_level)(struct snd_soc_dapm_context *dapm,
 			      enum snd_soc_bias_level level);
 
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index ca0b28b..f33dda8 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -59,6 +59,15 @@ void snd_soc_component_seq_notifier(struct snd_soc_component *component,
 		component->driver->seq_notifier(component, type, subseq);
 }
 
+int snd_soc_component_stream_event(struct snd_soc_component *component,
+				   int event)
+{
+	if (component->driver->stream_event)
+		return component->driver->stream_event(component, event);
+
+	return 0;
+}
+
 int snd_soc_component_enable_pin(struct snd_soc_component *component,
 				 const char *pin)
 {
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 99ec2b6..a10c443 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2692,14 +2692,6 @@ int snd_soc_register_dai(struct snd_soc_component *component,
 }
 EXPORT_SYMBOL_GPL(snd_soc_register_dai);
 
-static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm,
-	int event)
-{
-	struct snd_soc_component *component = dapm->component;
-
-	return component->driver->stream_event(component, event);
-}
-
 static int snd_soc_component_set_bias_level(struct snd_soc_dapm_context *dapm,
 					enum snd_soc_bias_level level)
 {
@@ -2728,8 +2720,6 @@ static int snd_soc_component_initialize(struct snd_soc_component *component,
 	dapm->bias_level = SND_SOC_BIAS_OFF;
 	dapm->idle_bias_off = !driver->idle_bias_on;
 	dapm->suspend_bias_off = driver->suspend_bias_off;
-	if (driver->stream_event)
-		dapm->stream_event = snd_soc_component_stream_event;
 	if (driver->set_bias_level)
 		dapm->set_bias_level = snd_soc_component_set_bias_level;
 
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 7a9bff9..14afc56 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1913,6 +1913,7 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event)
 	LIST_HEAD(down_list);
 	ASYNC_DOMAIN_EXCLUSIVE(async_domain);
 	enum snd_soc_bias_level bias;
+	int ret;
 
 	lockdep_assert_held(&card->dapm_mutex);
 
@@ -2029,8 +2030,12 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event)
 
 	/* do we need to notify any clients that DAPM event is complete */
 	list_for_each_entry(d, &card->dapm_list, list) {
-		if (d->stream_event)
-			d->stream_event(d, event);
+		if (!d->component)
+			continue;
+
+		ret = snd_soc_component_stream_event(d->component, event);
+		if (ret < 0)
+			return ret;
 	}
 
 	pop_dbg(card->dev, card->pop_time,
-- 
2.7.4

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