From a2a341752558cc67d6fe5c8ada7c16f9c3690f89 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Fri, 26 Jul 2019 13:51:31 +0900
Subject: [PATCH] ASoC: soc-component: add snd_soc_component_of_xlate_dai_name()
Git-commit: a2a341752558cc67d6fe5c8ada7c16f9c3690f89
Patch-mainline: v5.4-rc1
References: jsc#SLE-16518

Current ALSA SoC is directly using component->driver->xxx,
thus, it is deep nested, and makes code difficult to read,
and is not good for encapsulation.
This patch adds new snd_soc_component_of_xlate_dai_name() and use it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87y30l4d0z.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 include/sound/soc-component.h |  3 +++
 sound/soc/soc-component.c     | 10 ++++++++++
 sound/soc/soc-core.c          |  7 ++-----
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index 3f4acd337c4a..3ed2c39e45c2 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -360,5 +360,8 @@ int snd_soc_component_probe(struct snd_soc_component *component);
 void snd_soc_component_remove(struct snd_soc_component *component);
 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
 				      struct device_node *ep);
+int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
+					struct of_phandle_args *args,
+					const char **dai_name);
 
 #endif /* __SOC_COMPONENT_H */
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index faf49992f661..de1bc5196f67 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -389,3 +389,13 @@ int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
 
 	return -ENOTSUPP;
 }
+
+int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
+					struct of_phandle_args *args,
+					const char **dai_name)
+{
+	if (component->driver->of_xlate_dai_name)
+		return component->driver->of_xlate_dai_name(component,
+						     args, dai_name);
+	return -ENOTSUPP;
+}
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index f63d09dd55f4..2f068c239f34 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3358,11 +3358,8 @@ int snd_soc_get_dai_name(struct of_phandle_args *args,
 		if (component_of_node != args->np)
 			continue;
 
-		if (pos->driver->of_xlate_dai_name) {
-			ret = pos->driver->of_xlate_dai_name(pos,
-							     args,
-							     dai_name);
-		} else {
+		ret = snd_soc_component_of_xlate_dai_name(pos, args, dai_name);
+		if (ret == -ENOTSUPP) {
 			struct snd_soc_dai *dai;
 			int id = -1;
 
-- 
2.16.4