Commit a491a5c8 authored by Liam Girdwood's avatar Liam Girdwood Committed by Mark Brown
Browse files

ASoC: core - Add API call to register platform kcontrols. 



In preparation for Dynamic PCM (AKA DSP) support.

Allow platform drivers to register kcontrols.

Signed-off-by: default avatarLiam Girdwood <lrg@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 8a27bd9a

include/sound/soc.h

+2 −0
Original line number Diff line number Diff line
@@ -368,6 +368,8 @@ struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, 
				  const char *prefix);

int snd_soc_add_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,

	const struct snd_kcontrol_new *controls, int num_controls);

int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_info *uinfo);

int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,

sound/soc/soc-core.c

+30 −0
Original line number Diff line number Diff line
@@ -1948,6 +1948,36 @@ int snd_soc_add_controls(struct snd_soc_codec *codec, 
}

EXPORT_SYMBOL_GPL(snd_soc_add_controls);



/**

 * snd_soc_add_platform_controls - add an array of controls to a platform.

 * Convienience function to add a list of controls.

 *

 * @platform: platform to add controls to

 * @controls: array of controls to add

 * @num_controls: number of elements in the array

 *

 * Return 0 for success, else error.

 */

int snd_soc_add_platform_controls(struct snd_soc_platform *platform,

	const struct snd_kcontrol_new *controls, int num_controls)

{

	struct snd_card *card = platform->card->snd_card;

	int err, i;



	for (i = 0; i < num_controls; i++) {

		const struct snd_kcontrol_new *control = &controls[i];

		err = snd_ctl_add(card, snd_soc_cnew(control, platform,

				control->name, NULL));

		if (err < 0) {

			dev_err(platform->dev, "Failed to add %s %d\n",control->name, err);

			return err;

		}

	}



	return 0;

}

EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);



/**

 * snd_soc_info_enum_double - enumerated double mixer info callback

 * @kcontrol: mixer control