Some Controls defined in DAI need to be associated to PCM device (e.g. IEC60958).
This allows to perform post initialization in DAI after PCM device creation.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxx>
---
include/sound/soc-dai.h | 7 +++++++
sound/soc/soc-core.c | 14 ++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 964b7de..6969c83 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -205,6 +205,13 @@ struct snd_soc_dai_ops {
*/
snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
struct snd_soc_dai *);
+
+ /*
+ * function called by soc_probe_link_dais to post initialize DAI
+ * after pcm device creation.
+ * As example, can be used to link a controls to the pcm device
+ */
+ int (*pcm_new)(struct snd_soc_pcm_runtime *, struct snd_soc_dai *);
};
/*
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 790ee2b..3899ce7 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1587,6 +1587,7 @@ static int soc_probe_link_dais(struct snd_soc_card *card,
{
struct snd_soc_dai_link *dai_link = rtd->dai_link;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ const struct snd_soc_dai_ops *ops;
int i, ret;
dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
@@ -1662,6 +1663,19 @@ static int soc_probe_link_dais(struct snd_soc_card *card,
}
}
+ for (i = 0; i < rtd->num_codecs; i++) {
+ ops = rtd->codec_dais[i]->driver->ops;
+ if (ops->pcm_new)
+ ret = ops->pcm_new(rtd, rtd->codec_dais[i]);
+ if (ret)
+ return ret;
+ }
+ ops = cpu_dai->driver->ops;
+ if (ops->pcm_new)
+ ret = ops->pcm_new(rtd, cpu_dai);
+ if (ret)
+ return ret;
+
return 0;
}
--
1.9.1
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