Add widgets list getting.
Signed-off-by: Xiubo Li <li.xi...@freescale.com>
---
include/sound/soc.h | 1 +
sound/soc/soc-core.c | 31 +++++++++++++++++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 23f9572..f352333 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -388,6 +388,7 @@ int devm_snd_soc_register_component(struct device *dev,
void snd_soc_unregister_component(struct device *dev);
int snd_soc_register_widgets(struct snd_soc_widgets *wdg);
void snd_soc_unregister_widgets(struct snd_soc_widgets *wdg);
+struct snd_soc_widgets *snd_soc_get_widgets(struct device_node *np);
int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
unsigned int reg);
int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9adcada..e1d26e6 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3860,6 +3860,37 @@ void snd_soc_unregister_widgets(struct snd_soc_widgets
*wdg)
}
EXPORT_SYMBOL_GPL(snd_soc_unregister_widgets);
+struct snd_soc_widgets *snd_soc_get_widgets(struct device_node *np)
+{
+ struct snd_soc_widgets *wdg;
+ const char *string;
+ int ret;
+
+ if (!np)
+ return ERR_PTR(-EINVAL);
+
+ if (!of_property_read_bool(np, "sound-widgets"))
+ return NULL;
+
+ ret = of_property_read_string(np, "sound-widgets",
+ &string);
+ if (ret < 0)
+ return ERR_PTR(ret);
+
+ mutex_lock(&widgets_mutex);
+ list_for_each_entry(wdg, &widgets_list, list) {
+ if (!strcmp(string, wdg->name)) {
+ mutex_unlock(&widgets_mutex);
+ return wdg;
+ }
+
+ }
+ mutex_unlock(&widgets_mutex);
+
+ return ERR_PTR(-EPROBE_DEFER);
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_widgets);
+
/*
* Simplify DAI link configuration by removing ".-1" from device names
* and sanitizing names.
--
1.8.4
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