Commit 4fefd698 authored by Dimitris Papastamos's avatar Dimitris Papastamos Committed by Mark Brown
Browse files

ASoC: core: Add snd_soc_card_get_kcontrol() 



This is useful for drivers who want to grab a pointer to
snd_kcontrol outside of the kcontrol callbacks.

Signed-off-by: default avatarDimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 3b2f64d0

include/sound/soc.h

+2 −0
Original line number Diff line number Diff line
@@ -475,6 +475,8 @@ int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops); 
struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,

				  void *data, const char *long_name,

				  const char *prefix);

struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,

					       const char *name);

int snd_soc_add_codec_controls(struct snd_soc_codec *codec,

	const struct snd_kcontrol_new *controls, int num_controls);

int snd_soc_add_platform_controls(struct snd_soc_platform *platform,

sound/soc/soc-core.c

+16 −0
Original line number Diff line number Diff line
@@ -2299,6 +2299,22 @@ static int snd_soc_add_controls(struct snd_card *card, struct device *dev, 
	return 0;

}



struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,

					       const char *name)

{

	struct snd_card *card = soc_card->snd_card;

	struct snd_kcontrol *kctl;



	if (unlikely(!name))

		return NULL;



	list_for_each_entry(kctl, &card->controls, list)

		if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name)))

			return kctl;

	return NULL;

}

EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol);



/**

 * snd_soc_add_codec_controls - add an array of controls to a codec.

 * Convenience function to add a list of controls. Many codecs were