[PATCH 1/7] ASoC: simple-card-utils: add asoc_simple_card_set_dailink_name()

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

Current simple-card is creating dai_link->name / dai_link->stream_name.
These are based on CPU + Codec name, or "fe.CPU" or "be.Codec" if it
was DPCM.
This patch adds asoc_simple_card_set_dailink_name() and set dailink
name as common method.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
previous -> this

 - asoc_simple_card_set_dailink_name() doen't include DPCM specific naming

 include/sound/simple_card_utils.h     |  3 +++
 sound/soc/generic/simple-card-utils.c | 23 +++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index 50aa7b2..b88a8dc 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -27,5 +27,8 @@ int asoc_simple_card_parse_daifmt(struct device *dev,
 				  struct device_node *codec,
 				  char *prefix,
 				  unsigned int *retfmt);
+int asoc_simple_card_set_dailink_name(struct device *dev,
+				      struct snd_soc_dai_link *dai_link,
+				      const char *fmt, ...);
 
 #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..7f9014e 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -52,3 +52,26 @@ int asoc_simple_card_parse_daifmt(struct device *dev,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(asoc_simple_card_parse_daifmt);
+
+int asoc_simple_card_set_dailink_name(struct device *dev,
+				      struct snd_soc_dai_link *dai_link,
+				      const char *fmt, ...)
+{
+	va_list ap;
+	char *name = NULL;
+	int ret = -ENOMEM;
+
+	va_start(ap, fmt);
+	name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
+	va_end(ap);
+
+	if (name) {
+		ret = 0;
+
+		dai_link->name =
+		dai_link->stream_name = name;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_set_dailink_name);
-- 
1.9.1




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