From: Ajit Pandey <ajitp@xxxxxxxxxxxxxx> Soundcard should be registered after all components are registered. Add snd_soc_of_lookup_component() to get component info from device_node. This can be used by machine driver to make sure that card components are registered before calling snd_soc_register_card(). Signed-off-by: Ajit Pandey <ajitp@xxxxxxxxxxxxxx> Signed-off-by: Rohit kumar <rohitkr@xxxxxxxxxxxxxx> --- include/sound/soc.h | 1 + sound/soc/soc-core.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/include/sound/soc.h b/include/sound/soc.h index 8ec1de8..dc251fc 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1502,6 +1502,7 @@ int snd_soc_get_dai_name(struct of_phandle_args *args, const char **dai_name); int snd_soc_of_get_dai_name(struct device_node *of_node, const char **dai_name); +struct snd_soc_component *snd_soc_of_lookup_component(struct device_node *np); int snd_soc_of_get_dai_link_codecs(struct device *dev, struct device_node *of_node, struct snd_soc_dai_link *dai_link); diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 0462b3e..ab27bc5 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3797,6 +3797,34 @@ int snd_soc_of_get_dai_name(struct device_node *of_node, EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); /* + * snd_soc_of_lookup_component - Lookup component with device node + * @np: device node pointer + * + * This function looks up component based on given of_node + * + * Returns valid component pointer on success and NULL on failure to find one. + */ +struct snd_soc_component *snd_soc_of_lookup_component(struct device_node *np) +{ + struct snd_soc_component *component = NULL; + bool found = false; + + if (!np) + return NULL; + + mutex_lock(&client_mutex); + for_each_component(component) + if (component->dev->of_node == np) { + found = true; + break; + } + mutex_unlock(&client_mutex); + + return found ? component : NULL; +} +EXPORT_SYMBOL_GPL(snd_soc_of_lookup_component); + +/* * snd_soc_of_put_dai_link_codecs - Dereference device nodes in the codecs array * @dai_link: DAI link * -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel