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-rw-r--r--include/sound/soc.h4
-rw-r--r--sound/soc/soc-pcm.c10
2 files changed, 14 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index c0ac3bc7b7f4..65414e82c762 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -936,6 +936,10 @@ struct snd_soc_dai_link {
/* machine stream operations */
const struct snd_soc_ops *ops;
const struct snd_soc_compr_ops *compr_ops;
+
+ /* For unidirectional dai links */
+ bool playback_only;
+ bool capture_only;
};
struct snd_soc_codec_conf {
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index b6c640332a17..9abaa52efb2e 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2027,6 +2027,16 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
capture = 1;
}
+ if (rtd->dai_link->playback_only) {
+ playback = 1;
+ capture = 0;
+ }
+
+ if (rtd->dai_link->capture_only) {
+ playback = 0;
+ capture = 1;
+ }
+
/* create the PCM */
if (rtd->dai_link->no_pcm) {
snprintf(new_name, sizeof(new_name), "(%s)",