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ASoC: simple-card-utils: add asoc_simple_card_of_parse_routing() 

Current simple card drivers are parsing routing on each own driver.
Encapsulation is one of simple card util's purpose.
Let's add asoc_simple_card_of_parse_routing for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2017-06-15 00:25:02 +00:00 committed by Mark Brown
parent c564a5b187
commit 3296d07826
2 changed files with 26 additions and 0 deletions
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4
include/sound/simple_card_utils.h
View File

@ -100,4 +100,8 @@ void asoc_simple_card_convert_fixup(struct asoc_simple_card_data *data,
void asoc_simple_card_parse_convert(struct device *dev, char *prefix,
struct asoc_simple_card_data *data);
int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
char *prefix,
int optional);
#endif /* __SIMPLE_CARD_UTILS_H */

22
sound/soc/generic/simple-card-utils.c
View File

@ -375,6 +375,28 @@ int asoc_simple_card_clean_reference(struct snd_soc_card *card)
}
EXPORT_SYMBOL_GPL(asoc_simple_card_clean_reference);
int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
char *prefix,
int optional)
{
struct device_node *node = card->dev->of_node;
char prop[128];
if (!prefix)
prefix = "";
snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
if (!of_property_read_bool(node, prop)) {
if (optional)
return 0;
return -EINVAL;
}
return snd_soc_of_parse_audio_routing(card, prop);
}
EXPORT_SYMBOL_GPL(asoc_simple_card_of_parse_routing);
/* Module information */
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");