From: Kuninori Morimoto Date: Thu, 18 May 2017 01:39:44 +0000 (+0000) Subject: ASoC: simple-card-utils: support snd_soc_get_dai_id() X-Git-Tag: v4.13-rc1~142^2~1^2^2~6^3~3^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=73b17f1a65c881fcf97109d77056006da2d40152;p=karo-tx-linux.git ASoC: simple-card-utils: support snd_soc_get_dai_id() ALSA SoC needs to know connected DAI ID for detecting. It is not a big problem if device/driver was only for sound, but getting DAI ID will be difficult if device includes both Video/Sound, like HDMI. To solve this issue, this patch adds new snd_soc_get_dai_id() and its related .of_xlate_dai_id callback on component driver. In below case, we can handle Sound port (= port@2) as ID = 0 if .of_xlate_dai_id has its support. hdmi { port@0 { /* VIDEO */ }; port@1 { /* VIDEO */ }; port@2 { /* SOUND */ }; }; Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 5a3d51e45938..fe726e83d0bd 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -177,9 +177,18 @@ static int asoc_simple_card_get_dai_id(struct device_node *ep) struct device_node *node; struct device_node *endpoint; int i, id; + int ret; + + ret = snd_soc_get_dai_id(ep); + if (ret != -ENOTSUPP) + return ret; node = of_graph_get_port_parent(ep); + /* + * Non HDMI sound case, counting port/endpoint on its DT + * is enough. Let's count it. + */ i = 0; id = -1; for_each_endpoint_of_node(node, endpoint) {