From 1889a7e275c82cfa120004595a652e834c3723e1 Mon Sep 17 00:00:00 2001
From: Peng Fan <van.freenix@gmail.com>
Date: Mon, 1 Feb 2016 13:31:15 +0800
Subject: fdt: introduce fdtdec_get_child_count

Introduce fdtdec_get_child_count for get the number of subnodes
of one parent node.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
---
 lib/fdtdec.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'lib')

diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 0eb56af..1b1ca02 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -831,6 +831,17 @@ int fdtdec_parse_phandle_with_args(const void *blob, int src_node,
 	return rc;
 }
 
+int fdtdec_get_child_count(const void *blob, int node)
+{
+	int subnode;
+	int num = 0;
+
+	fdt_for_each_subnode(blob, subnode, node)
+		num++;
+
+	return num;
+}
+
 int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name,
 		u8 *array, int count)
 {
-- 
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