In preparation for Dynamic PCM (AKA DSP) support.
Allow platform drivers to register kcontrols.
Signed-off-by: Liam Girdwood lrg@ti.com --- include/sound/soc.h | 2 ++ sound/soc/soc-core.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/include/sound/soc.h b/include/sound/soc.h index f30f3fe..c421501 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -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, diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 06c9b14..a69b87a 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1951,6 +1951,36 @@ 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 * @uinfo: control element information