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-rw-r--r--sound/soc/soc-pcm.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 170ff9695753..f3592f142832 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -180,6 +180,21 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
return 0;
}
+static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver;
+ struct snd_soc_dai_driver *codec_driver = rtd->codec_dai->driver;
+ struct snd_soc_dai_link *link = rtd->dai_link;
+
+ return cpu_driver->symmetric_rates || codec_driver->symmetric_rates ||
+ link->symmetric_rates || cpu_driver->symmetric_channels ||
+ codec_driver->symmetric_channels || link->symmetric_channels ||
+ cpu_driver->symmetric_samplebits ||
+ codec_driver->symmetric_samplebits ||
+ link->symmetric_samplebits;
+}
+
/*
* List of sample sizes that might go over the bus for parameter
* application. There ought to be a wildcard sample size for things
@@ -309,6 +324,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
&cpu_dai_drv->capture);
}
+ if (soc_pcm_has_symmetry(substream))
+ runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
+
ret = -EINVAL;
snd_pcm_limit_hw_rates(runtime);
if (!runtime->hw.rates) {