From: Kuninori Morimoto <kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
To: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Brown <broonie-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Laurent
<laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>,
Guennadi <g.liakhovetski-Mmb7MZpHnFY@public.gmane.org>,
Grant Likely
<grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Frank Rowand
<frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Linux-Kernel
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Linux-DT <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Linux-ALSA <alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>
Subject: [PATCH 4/7] of_graph: add of_graph_get_endpoint_count()
Date: Fri, 24 Jun 2016 02:33:20 +0000 [thread overview]
Message-ID: <87a8ibxqy6.wl%kuninori.morimoto.gx@renesas.com> (raw)
In-Reply-To: <87fus3xr2q.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()
which can check specific type. It will count all endpoint if type was NULL.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
---
drivers/of/base.c | 16 ++++++++++++++++
include/linux/of_graph.h | 8 ++++++++
2 files changed, 24 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index a0fc63c..a39d470 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2430,3 +2430,19 @@ bool of_graph_endpoint_type_is(struct device_node *ep, char *type)
return of_graph_port_type_is(of_get_parent(ep), type);
}
EXPORT_SYMBOL(of_graph_endpoint_type_is);
+
+int of_graph_get_endpoint_count(const struct device_node *np, char *type)
+{
+ struct device_node *child;
+ int num = 0;
+
+ for_each_endpoint_of_node(np, child) {
+ if (!type)
+ num++;
+ else
+ num += of_graph_endpoint_type_is(child, type);
+ }
+
+ return num;
+}
+EXPORT_SYMBOL(of_graph_get_endpoint_count);
diff --git a/include/linux/of_graph.h b/include/linux/of_graph.h
index 1750d5c..86baae5 100644
--- a/include/linux/of_graph.h
+++ b/include/linux/of_graph.h
@@ -42,12 +42,14 @@ struct of_endpoint {
#define of_graph_port_type_is_sound(n) of_graph_port_type_is(n, "sound")
#define of_graph_endpoint_type_is_sound(n) of_graph_endpoint_type_is(n, "sound")
+#define of_graph_get_sound_endpoint_count(n) of_graph_get_endpoint_count(n, "sound")
#ifdef CONFIG_OF
int of_graph_parse_endpoint(const struct device_node *node,
struct of_endpoint *endpoint);
bool of_graph_port_type_is(struct device_node *port, char *type);
bool of_graph_endpoint_type_is(struct device_node *ep, char *type);
+int of_graph_get_endpoint_count(const struct device_node *np, char *type);
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);
@@ -76,6 +78,12 @@ static bool of_graph_endpoint_type_is(struct device_node *ep, char *type)
return false;
}
+static inline int of_graph_get_endpoint_count(const struct device_node *np,
+ char *type)
+{
+ 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:[~2016-06-24 2:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-24 2:30 [PATCH 0/7] of_graph: prepare for ALSA graph support Kuninori Morimoto
2016-06-24 2:32 ` [PATCH 2/7] of_graph: add of_graph_get_remote_endpoint() Kuninori Morimoto
2017-05-17 9:53 ` Applied "of_graph: add of_graph_get_remote_endpoint()" to the asoc tree Mark Brown
[not found] ` <87fus3xr2q.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2016-06-24 2:32 ` [PATCH 1/7] Documentation: of: add type property Kuninori Morimoto
2016-06-24 17:41 ` Rob Herring
2016-06-27 0:09 ` Kuninori Morimoto
2016-06-27 1:14 ` Kuninori Morimoto
2016-06-24 2:32 ` [PATCH 3/7] of_graph: add of_graph_port/endpoint_type_is() Kuninori Morimoto
2016-06-24 2:33 ` Kuninori Morimoto [this message]
2016-06-24 2:33 ` [PATCH 5/7] of_graph: add of_graph_get_port_parent() Kuninori Morimoto
2017-05-17 9:53 ` Applied "of_graph: add of_graph_get_port_parent()" to the asoc tree Mark Brown
2016-06-24 2:33 ` [PATCH 6/7] of_graph: add of_graph_get_top_port() Kuninori Morimoto
2016-06-24 4:39 ` kbuild test robot
2016-06-24 9:22 ` Kuninori Morimoto
2016-06-24 2:34 ` [PATCH 7/7] of_graph: add for_each_of_port() / for_each_of_endpoint_in_port() Kuninori Morimoto
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