ASoC: rsnd: add DT support to DVC

Now, DVC can use DT

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c
index deef310..9096fb0 100644
--- a/sound/soc/sh/rcar/dvc.c
+++ b/sound/soc/sh/rcar/dvc.c
@@ -235,6 +235,42 @@ struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id)
 	return &((struct rsnd_dvc *)(priv->dvc) + id)->mod;
 }
 
+static void rsnd_of_parse_dvc(struct platform_device *pdev,
+			      const struct rsnd_of_data *of_data,
+			      struct rsnd_priv *priv)
+{
+	struct device_node *node;
+	struct rsnd_dvc_platform_info *dvc_info;
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
+	struct device *dev = &pdev->dev;
+	int nr;
+
+	if (!of_data)
+		return;
+
+	node = of_get_child_by_name(dev->of_node, "rcar_sound,dvc");
+	if (!node)
+		return;
+
+	nr = of_get_child_count(node);
+	if (!nr)
+		goto rsnd_of_parse_dvc_end;
+
+	dvc_info = devm_kzalloc(dev,
+				sizeof(struct rsnd_dvc_platform_info) * nr,
+				GFP_KERNEL);
+	if (!dvc_info) {
+		dev_err(dev, "dvc info allocation error\n");
+		goto rsnd_of_parse_dvc_end;
+	}
+
+	info->dvc_info		= dvc_info;
+	info->dvc_info_nr	= nr;
+
+rsnd_of_parse_dvc_end:
+	of_node_put(node);
+}
+
 int rsnd_dvc_probe(struct platform_device *pdev,
 		   const struct rsnd_of_data *of_data,
 		   struct rsnd_priv *priv)
@@ -246,6 +282,8 @@ int rsnd_dvc_probe(struct platform_device *pdev,
 	char name[RSND_DVC_NAME_SIZE];
 	int i, nr;
 
+	rsnd_of_parse_dvc(pdev, of_data, priv);
+
 	nr = info->dvc_info_nr;
 	if (!nr)
 		return 0;