diff options
| -rw-r--r-- | include/sound/soc.h | 13 |
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 | */ | ||
| 1117 | static 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 */ |
| 1111 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); | 1124 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); |
| 1112 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | 1125 | unsigned int snd_soc_write(struct snd_soc_codec *codec, |
