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-rw-r--r--include/sound/soc.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index f7de629728bf..0b83168d8ff4 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1107,6 +1107,19 @@ struct soc_enum {
1107 const unsigned int *values; 1107 const unsigned int *values;
1108}; 1108};
1109 1109
1110/**
1111 * snd_soc_component_to_codec() - Casts a component to the CODEC it is embedded in
1112 * @component: The component to cast to a CODEC
1113 *
1114 * This function must only be used on components that are known to be CODECs.
1115 * Otherwise the behavior is undefined.
1116 */
1117static inline struct snd_soc_codec *snd_soc_component_to_codec(
1118 struct snd_soc_component *component)
1119{
1120 return container_of(component, struct snd_soc_codec, component);
1121}
1122
1110/* codec IO */ 1123/* codec IO */
1111unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); 1124unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1112unsigned int snd_soc_write(struct snd_soc_codec *codec, 1125unsigned int snd_soc_write(struct snd_soc_codec *codec,