[alsa-devel] [PATCH 3/6] ASoC: simple-card-utils: add asoc_simple_card_parse_dailink_name()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

Current simple-card is creating dai_link->name / dai_link->stream_name.
These are based on CPU + Codec name.
It can be "fe.CPU" or "be.Codec" if it was DPCM.
This patch adds simple card common function for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 include/sound/simple_card_utils.h     |  2 ++
 sound/soc/generic/simple-card-utils.c | 30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index 50aa7b2..3abe224 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -27,5 +27,7 @@ int asoc_simple_card_parse_daifmt(struct device *dev,
 				  struct device_node *codec,
 				  char *prefix,
 				  unsigned int *retfmt);
+int asoc_simple_card_parse_dailink_name(struct device *dev,
+					struct snd_soc_dai_link *dai_link);
 
 #endif /* __SIMPLE_CARD_CORE_H */
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index 3f6b725..14d3a75 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -52,3 +52,33 @@ int asoc_simple_card_parse_daifmt(struct device *dev,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(asoc_simple_card_parse_daifmt);
+
+int asoc_simple_card_parse_dailink_name(struct device *dev,
+					struct snd_soc_dai_link *dai_link)
+{
+	char *name = NULL;
+	int ret = -ENOMEM;
+
+	if (dai_link->dynamic && dai_link->cpu_dai_name)
+		name = devm_kasprintf(dev, GFP_KERNEL,
+				      "fe.%s", dai_link->cpu_dai_name);
+
+	else if (dai_link->no_pcm && dai_link->codec_dai_name)
+		name = devm_kasprintf(dev, GFP_KERNEL,
+				      "be.%s", dai_link->codec_dai_name);
+	else if (dai_link->cpu_dai_name && dai_link->codec_dai_name)
+		name = devm_kasprintf(dev, GFP_KERNEL,
+				      "%s-%s",
+				      dai_link->cpu_dai_name,
+				      dai_link->codec_dai_name);
+
+	if (name) {
+		ret = 0;
+
+		dai_link->name =
+		dai_link->stream_name = name;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dailink_name);
-- 
1.9.1