xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

of_graph: add of_graph_get_endpoint_count()

Browse Source 
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>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto
2017-04-20 01:32:47 +00:00
committed by Mark Brown
parent 0ef472a973
commit ac1e6958d3
2 changed files with 18 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/of/base.c
View File

@@ -2559,6 +2559,18 @@ 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