From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kuninori Morimoto Subject: [PATCH v3 3/7] of_graph: add of_graph_get_endpoint_count() Date: Thu, 2 Mar 2017 05:26:18 +0000 Message-ID: <87a894meva.wl%kuninori.morimoto.gx@renesas.com> References: <87fuiwmeya.wl%kuninori.morimoto.gx@renesas.com> Mime-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <87fuiwmeya.wl%kuninori.morimoto.gx@renesas.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Mark Brown , Rob Herring Cc: Linux-DT , Linux-ALSA , Simon List-Id: devicetree@vger.kernel.org From: Kuninori Morimoto 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 --- 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