ASoC: core: add snd_soc_of_parse_audio_prefix()
Current ASoC can add name_prefix for DAPM, and it is necessary for
route settings. This patch adds snd_soc_of_parse_audio_prefix() for
this purpose. It will be used with snd_soc_of_parse_audio_routing().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 93df8bf..75cd19c 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1604,6 +1604,10 @@
int snd_soc_of_parse_tdm_slot(struct device_node *np,
unsigned int *slots,
unsigned int *slot_width);
+void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card,
+ struct snd_soc_codec_conf *codec_conf,
+ struct device_node *of_node,
+ const char *propname);
int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
const char *propname);
unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 3a4a5c0..fd15d54 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3303,6 +3303,26 @@
}
EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot);
+void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card,
+ struct snd_soc_codec_conf *codec_conf,
+ struct device_node *of_node,
+ const char *propname)
+{
+ struct device_node *np = card->dev->of_node;
+ const char *str;
+ int ret;
+
+ ret = of_property_read_string(np, propname, &str);
+ if (ret < 0) {
+ /* no prefix is not error */
+ return;
+ }
+
+ codec_conf->of_node = of_node;
+ codec_conf->name_prefix = str;
+}
+EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix);
+
int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
const char *propname)
{