From: Kuninori Morimoto <kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Linux-ALSA <alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>,
Simon <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>,
Linux-DT <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: [PATCH v5 3/9] of_graph: add of_graph_get_endpoint_count()
Date: Tue, 21 Mar 2017 05:22:09 +0000 [thread overview]
Message-ID: <87y3vz8ay1.wl%kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <8737e79pkq.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
From: Kuninori Morimoto <kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
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-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
---
v4 -> v5
- 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 eac37014..812edb9 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2527,6 +2527,18 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node)
}
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);
+
/**
* of_graph_get_remote_node() - get remote parent device_node for given port/endpoint
* @node: pointer to parent device_node containing graph port/endpoint
diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index 9db632d..3e058f0 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);
@@ -64,6 +65,11 @@ 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
--
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next prev parent reply other threads:[~2017-03-21 5:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-21 5:20 [PATCH v5 0/9] ASoC: add OF-graph base simple-card Kuninori Morimoto
[not found] ` <8737e79pkq.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-03-21 5:21 ` [PATCH v5 1/9] of_graph: add of_graph_get_remote_endpoint() Kuninori Morimoto
2017-03-21 5:21 ` [PATCH v5 2/9] of_graph: add of_graph_get_port_parent() Kuninori Morimoto
2017-03-21 5:22 ` Kuninori Morimoto [this message]
2017-03-21 5:22 ` [PATCH v5 4/9] ASoC: simple-card-utils: enable "label" on asoc_simple_card_parse_card_name Kuninori Morimoto
2017-03-21 5:22 ` [PATCH v5 5/9] ASoC: soc-core: enable "dai-name" on snd_soc_of_parse_daifmt() Kuninori Morimoto
2017-03-21 5:22 ` [PATCH v5 6/9] ASoC: add snd_soc_get_dai_id() Kuninori Morimoto
2017-03-21 5:23 ` [PATCH v5 7/9] ASoC: simple-card-utils: add asoc_simple_card_parse_graph_dai() Kuninori Morimoto
2017-03-21 5:23 ` [PATCH v5 8/9] ASoC: add audio-graph-card document Kuninori Morimoto
2017-03-21 5:23 ` [PATCH v5 9/9] ASoC: add audio-graph-card support Kuninori Morimoto
[not found] ` <87pohb8aux.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-05-17 9:52 ` Applied "ASoC: add audio-graph-card support" to the asoc tree Mark Brown
2017-04-03 7:57 ` [resend][PATCH v5 2/9] of_graph: add of_graph_get_port_parent() Kuninori Morimoto
2017-04-03 7:57 ` [resend][PATCH v5 1/9] of_graph: add of_graph_get_remote_endpoint() Kuninori Morimoto
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