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dm: core: Add function to get child count of ofnode or device

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This patch add function used to get the child count of
a ofnode or a device

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Weijie Gao <weijie.gao@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Chunfeng Yun 2020-05-02 11:35:09 +02:00 • committed by Marek Vasut
parent c693f212c5
commit 89b84b85e9
4 changed files with 37 additions and 0 deletions
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8
include/dm/ofnode.h
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@ -879,6 +879,14 @@ ofnode ofnode_by_prop_value(ofnode from, const char *propname,
ofnode_valid(node); \
node = ofnode_next_subnode(node))
/**
* ofnode_get_child_count() - get the child count of a ofnode
*
* @node: valid node to get its child count
* @return the number of subnodes
*/
int ofnode_get_child_count(ofnode parent);
/**
* ofnode_translate_address() - Translate a device-tree address
*