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

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Current simple card drivers are parsing widgets on each own driver
(only simple-card at this point, but will be supported on all drivers)
Encapsulation is one of simple card util's purpose.
Let's add asoc_simple_card_of_parse_widgets 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 2017-06-16 01:38:50 +00:00 committed by Mark Brown
parent 9fb9b2f236
commit b31f11d036
2 changed files with 21 additions and 0 deletions
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2
include/sound/simple_card_utils.h
View file

@ -103,5 +103,7 @@ void asoc_simple_card_parse_convert(struct device *dev, char *prefix,
int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
char *prefix,
int optional);
int asoc_simple_card_of_parse_widgets(struct snd_soc_card *card,
char *prefix);
#endif /* __SIMPLE_CARD_UTILS_H */

19
sound/soc/generic/simple-card-utils.c
View file

@ -397,6 +397,25 @@ int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
}
EXPORT_SYMBOL_GPL(asoc_simple_card_of_parse_routing);
int asoc_simple_card_of_parse_widgets(struct snd_soc_card *card,
char *prefix)
{
struct device_node *node = card->dev->of_node;
char prop[128];
if (!prefix)
prefix = "";
snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
if (of_property_read_bool(node, prop))
return snd_soc_of_parse_audio_simple_widgets(card, prop);
/* no widgets is not error */
return 0;
}
EXPORT_SYMBOL_GPL(asoc_simple_card_of_parse_widgets);
/* Module information */
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");