From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
audio-graph-scu-card.c is supporting "prefix" which is used to avoid DAI naming conflict when CPU/Codec matching. But, sound card might have multi sub-devices, and each codec might need each prefix.
Now, ASoC is supporting snd_soc_of_parse_node_prefix(), let's support it on audio-graph-scu-card, too. It is keeping existing DT style.
It can't support each codec's prefix if sound card had multi sub-devices without this patch.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/generic/audio-graph-scu-card.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/sound/soc/generic/audio-graph-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c index c469473..fdc61f1 100644 --- a/sound/soc/generic/audio-graph-scu-card.c +++ b/sound/soc/generic/audio-graph-scu-card.c @@ -39,6 +39,8 @@ struct graph_card_data { #define graph_priv_to_dev(priv) (graph_priv_to_card(priv)->dev) #define graph_priv_to_link(priv, i) (graph_priv_to_card(priv)->dai_link + (i))
+#define PREFIX "audio-graph-card," + static int asoc_graph_card_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; @@ -98,6 +100,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, idx); struct graph_dai_props *dai_props = graph_priv_to_props(priv, idx); struct snd_soc_card *card = graph_priv_to_card(priv); + struct device_node *node = of_graph_get_port_parent(ep); int ret;
if (is_fe) { @@ -154,10 +157,17 @@ static int asoc_graph_card_dai_link_of(struct device_node *ep, if (ret < 0) return ret;
+ /* check "prefix" from top node */ snd_soc_of_parse_audio_prefix(card, &priv->codec_conf, dai_link->codecs->of_node, "prefix"); + /* check "prefix" from each node if top doesn't have */ + if (!priv->codec_conf.of_node) + snd_soc_of_parse_node_prefix(node, + &priv->codec_conf, + dai_link->codecs->of_node, + PREFIX "prefix"); }
ret = asoc_simple_card_of_parse_tdm(ep, &dai_props->dai);