1 files changed, 17 insertions, 0 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9e593cf1440b..4a9195c5ef2d 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -583,6 +583,14 @@ struct snd_soc_prefix_map {
         const char *name_prefix;
 };
 
+struct snd_soc_aux_dev {
+        const char *name;               /* Codec name */
+        const char *codec_name;         /* for multi-codec */
+
+        /* codec/machine specific init - e.g. add machine controls */
+        int (*init)(struct snd_soc_dapm_context *dapm);
+};
+
 /* SoC card */
 struct snd_soc_card {
         const char *name;
@@ -624,6 +632,15 @@ struct snd_soc_card {
         struct snd_soc_prefix_map *prefix_map;
         int num_prefixes;
 
+        /*
+         * optional auxiliary devices such as amplifiers or codecs with DAI
+         * link unused
+         */
+        struct snd_soc_aux_dev *aux_dev;
+        int num_aux_devs;
+        struct snd_soc_pcm_runtime *rtd_aux;
+        int num_aux_rtd;
+
         struct work_struct deferred_resume_work;
 
         /* lists of probed devices belonging to this card */