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Date: Wed, 16 Nov 2016 02:20:15 +0000
From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To: Rob Herring <robh+dt@...nel.org>, Mark Brown <broonie@...nel.org>
CC: Linux-ALSA <alsa-devel@...a-project.org>,
Liam Girdwood <lgirdwood@...il.com>,
Simon <horms@...ge.net.au>,
Laurent <laurent.pinchart@...asonboard.com>,
Guennadi <g.liakhovetski@....de>,
Grant Likely <grant.likely@...aro.org>,
Frank Rowand <frowand.list@...il.com>,
Linux-DT <devicetree@...r.kernel.org>,
Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v4 06/12] ASoC: simple-card-utils: add asoc_simple_card_parse_graph_dai()
From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
simple-card already has asoc_simple_card_parse_dai(),
but graph base parsing needs graph specific version of it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
---
v3 -> v4
- no change
include/sound/simple_card_utils.h | 10 +++++++
sound/soc/generic/simple-card-utils.c | 50 +++++++++++++++++++++++++++++++++++
2 files changed, 60 insertions(+)
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index fd641255..4b58954 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -59,6 +59,16 @@ int asoc_simple_card_parse_dai(struct device_node *node,
const char *cells_name,
int *is_single_links);
+#define asoc_simple_card_parse_graph_cpu(ep, dai_link) \
+ asoc_simple_card_parse_graph_dai(ep, &dai_link->cpu_of_node, \
+ &dai_link->cpu_dai_name)
+#define asoc_simple_card_parse_graph_codec(ep, dai_link) \
+ asoc_simple_card_parse_graph_dai(ep, &dai_link->codec_of_node, \
+ &dai_link->codec_dai_name)
+int asoc_simple_card_parse_graph_dai(struct device_node *ep,
+ struct device_node **endpoint_np,
+ const char **dai_name);
+
int asoc_simple_card_init_dai(struct snd_soc_dai *dai,
struct asoc_simple_dai *simple_dai);
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index e5b80f5..373ada3 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -10,6 +10,7 @@
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_graph.h>
#include <sound/simple_card_utils.h>
int asoc_simple_card_parse_daifmt(struct device *dev,
@@ -164,6 +165,55 @@ int asoc_simple_card_parse_dai(struct device_node *node,
}
EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dai);
+int asoc_simple_card_parse_graph_dai(struct device_node *ep,
+ struct device_node **dai_of_node,
+ const char **dai_name)
+{
+ struct device_node *node, *port, *endpoint;
+ int i, id;
+
+ if (!ep)
+ return 0;
+
+ /*
+ * of_graph_get_port_parent() will call
+ * of_node_put(). So, call of_node_get() here
+ */
+ of_node_get(ep);
+ node = of_graph_get_port_parent(ep);
+
+ i = 0;
+ id = -1;
+ for_each_of_port(node, port) {
+ for_each_of_endpoint_in_port(port, endpoint) {
+ if (endpoint == ep)
+ id = i;
+ i++;
+ }
+ }
+ if (id < 0)
+ return -ENODEV;
+
+ /* Get dai->name */
+ if (dai_name) {
+ struct of_phandle_args args;
+ int ret;
+
+ args.np = node;
+ args.args[0] = id;
+ args.args_count = (i > 1);
+
+ ret = snd_soc_get_dai_name(&args, dai_name);
+ if (ret < 0)
+ return ret;
+ }
+
+ *dai_of_node = node;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_graph_dai);
+
int asoc_simple_card_init_dai(struct snd_soc_dai *dai,
struct asoc_simple_dai *simple_dai)
{
--
1.9.1
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