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Commit 73b17f1a authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mark Brown
Browse files

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: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 7932787f

sound/soc/generic/simple-card-utils.c

+9 −0
Original line number Diff line number Diff line
@@ -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) {