From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
To: Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: Linux-DT <devicetree@vger.kernel.org>,
Linux-ALSA <alsa-devel@alsa-project.org>,
Simon <horms@verge.net.au>
Subject: [PATCH v3 3/7] of_graph: add of_graph_get_endpoint_count()
Date: Thu, 2 Mar 2017 05:26:18 +0000 [thread overview]
Message-ID: <87a894meva.wl%kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <87fuiwmeya.wl%kuninori.morimoto.gx@renesas.com>
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
OF graph want to count its endpoint number, same as
of_get_child_count(). This patch adds of_graph_get_endpoint_count()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
v2 -> v3
- no change
drivers/of/base.c | 12 ++++++++++++
include/linux/of_graph.h | 6 ++++++
2 files changed, 18 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 6994888..e79abb1 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2523,3 +2523,15 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node)
return of_get_next_parent(np);
}
EXPORT_SYMBOL(of_graph_get_remote_port);
+
+int of_graph_get_endpoint_count(const struct device_node *np)
+{
+ struct device_node *endpoint;
+ int num = 0;
+
+ for_each_endpoint_of_node(np, endpoint)
+ num++;
+
+ return num;
+}
+EXPORT_SYMBOL(of_graph_get_endpoint_count);
diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index 80ced0c..0296a19 100644
--- a/include/linux/of_graph.h
+++ b/include/linux/of_graph.h
@@ -43,6 +43,7 @@ struct of_endpoint {
#ifdef CONFIG_OF
int of_graph_parse_endpoint(const struct device_node *node,
struct of_endpoint *endpoint);
+int of_graph_get_endpoint_count(const struct device_node *np);
struct device_node *of_graph_get_port_by_id(struct device_node *node, u32 id);
struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
struct device_node *previous);
@@ -62,6 +63,11 @@ static inline int of_graph_parse_endpoint(const struct device_node *node,
return -ENOSYS;
}
+static inline int of_graph_get_endpoint_count(const struct device_node *np)
+{
+ return 0;
+}
+
static inline struct device_node *of_graph_get_port_by_id(
struct device_node *node, u32 id)
{
--
1.9.1
next prev parent reply other threads:[~2017-03-02 5:26 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-02 5:24 [PATCH v3 0/7] ASoC: add OF-graph base simple-card Kuninori Morimoto
2017-03-02 5:25 ` [PATCH v3 2/7] of_graph: add of_graph_get_port_parent() Kuninori Morimoto
2017-03-02 5:26 ` Kuninori Morimoto [this message]
[not found] ` <87fuiwmeya.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-03-02 5:25 ` [PATCH v3 1/7] of_graph: add of_graph_get_remote_endpoint() Kuninori Morimoto
2017-03-02 5:26 ` [PATCH 4/7] ASoC: add snd_soc_get_dai_id() Kuninori Morimoto
2017-03-02 5:27 ` [PATCH 5/7] ASoC: simple-card-utils: add asoc_simple_card_parse_graph_dai() Kuninori Morimoto
2017-03-02 5:28 ` [PATCH v3 6/7] ASoC: add audio-graph-card document Kuninori Morimoto
[not found] ` <8760jsmers.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-03-12 11:43 ` Rob Herring
2017-03-13 6:07 ` Kuninori Morimoto
2017-03-02 5:29 ` [PATCH 7/7] ASoC: add audio-graph-card support Kuninori Morimoto
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