From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 20 Jan 2026 00:14:54 +0000 (+0000)
Subject: ASoC: soc-dapm: add snd_soc_dapm_alloc()
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=13c84b4c6f218c196c9c72286645247996800427;p=thirdparty%2Fkernel%2Flinux.git

ASoC: soc-dapm: add snd_soc_dapm_alloc()

Because struct snd_soc_dapm_context is soc-dapm framework specific, user
driver don't need to access its member directly, we would like to hide
them. struct snd_soc_dapm_context will be removed from header in the
future.

Current card/component are using dapm_context instance. But it will be
moved to soc-dapm.c, and we can use will be only pointer. Makes it to
pointer.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87h5shqgw1.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index e538784746db..2a2b74b24a60 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -237,8 +237,7 @@ struct snd_soc_component {
 	 * the driver will be marked as BROKEN when these fields are removed.
 	 */
 
-	/* Don't use these, use snd_soc_component_get_dapm() */
-	struct snd_soc_dapm_context dapm;
+	struct snd_soc_dapm_context *dapm;
 
 	/* machine specific init */
 	int (*init)(struct snd_soc_component *component);
@@ -268,7 +267,7 @@ struct snd_soc_component {
 static inline struct snd_soc_dapm_context *snd_soc_component_to_dapm(
 	struct snd_soc_component *component)
 {
-	return &component->dapm;
+	return component->dapm;
 }
 
 /**
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 010d63db5436..6f3e1b57cda3 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -627,6 +627,8 @@ enum snd_soc_dapm_direction {
 #define SND_SOC_DAPM_EP_SOURCE	SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_IN)
 #define SND_SOC_DAPM_EP_SINK	SND_SOC_DAPM_DIR_TO_EP(SND_SOC_DAPM_DIR_OUT)
 
+struct snd_soc_dapm_context *snd_soc_dapm_alloc(struct device *dev);
+
 int snd_soc_dapm_regulator_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
 int snd_soc_dapm_clock_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
 int snd_soc_dapm_pinctrl_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event);
diff --git a/include/sound/soc.h b/include/sound/soc.h
index aa0fe6b80293..7d8376c8e1be 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1076,7 +1076,7 @@ struct snd_soc_card {
 	struct list_head dobj_list;
 
 	/* Generic DAPM context for the card */
-	struct snd_soc_dapm_context dapm;
+	struct snd_soc_dapm_context *dapm;
 	struct snd_soc_dapm_stats dapm_stats;
 
 #ifdef CONFIG_DEBUG_FS
@@ -1136,7 +1136,7 @@ static inline int snd_soc_card_is_instantiated(struct snd_soc_card *card)
 
 static inline struct snd_soc_dapm_context *snd_soc_card_to_dapm(struct snd_soc_card *card)
 {
-	return &card->dapm;
+	return card->dapm;
 }
 
 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e4b21bf39e59..355ccc95f28b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2556,6 +2556,10 @@ int snd_soc_register_card(struct snd_soc_card *card)
 	if (!card->name || !card->dev)
 		return -EINVAL;
 
+	card->dapm = snd_soc_dapm_alloc(card->dev);
+	if (!card->dapm)
+		return -ENOMEM;
+
 	dev_set_drvdata(card->dev, card);
 
 	INIT_LIST_HEAD(&card->widgets);
@@ -2840,6 +2844,10 @@ int snd_soc_component_initialize(struct snd_soc_component *component,
 				 const struct snd_soc_component_driver *driver,
 				 struct device *dev)
 {
+	component->dapm = snd_soc_dapm_alloc(dev);
+	if (!component->dapm)
+		return -ENOMEM;
+
 	INIT_LIST_HEAD(&component->dai_list);
 	INIT_LIST_HEAD(&component->dobj_list);
 	INIT_LIST_HEAD(&component->card_list);
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 4c2007c61ca1..7aef57dcb2a7 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -165,6 +165,11 @@ static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...)
 	kfree(buf);
 }
 
+struct snd_soc_dapm_context *snd_soc_dapm_alloc(struct device *dev)
+{
+	return devm_kzalloc(dev, sizeof(struct snd_soc_dapm_context), GFP_KERNEL);
+}
+
 struct device *snd_soc_dapm_to_dev(struct snd_soc_dapm_context *dapm)
 {
 	if (dapm->component)
@@ -1076,7 +1081,7 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm,
 	if (ret != 0)
 		goto out;
 
-	if (dapm != &card->dapm)
+	if (dapm != card->dapm)
 		ret = snd_soc_dapm_force_bias_level(dapm, level);
 
 	if (ret != 0)