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dm: core: add ofnode_for_each_compatible_node()

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Add a helper to iterate over all nodes with a given compatible string.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Michael Walle 2021-10-15 15:15:17 +02:00 committed by Priyanka Jain
parent c7155d29fb
commit b8ec9458a3
1 changed files with 24 additions and 0 deletions
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24
include/dm/ofnode.h
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@ -1009,6 +1009,30 @@ ofnode ofnode_by_prop_value(ofnode from, const char *propname,
ofnode_valid(node); \
node = ofnode_next_subnode(node))
/**
* ofnode_for_each_compatible_node() - iterate over all nodes with a given
* compatible string
*
* @node: child node (ofnode, lvalue)
* @compat: compatible string to match
*
* This is a wrapper around a for loop and is used like so:
*
* ofnode node;
*
* ofnode_for_each_compatible_node(node, parent, compatible) {
* Use node
* ...
* }
*
* Note that this is implemented as a macro and @node is used as
* iterator in the loop.
*/
#define ofnode_for_each_compatible_node(node, compat) \
for (node = ofnode_by_compatible(ofnode_null(), compat); \
ofnode_valid(node); \
node = ofnode_by_compatible(node, compat))
/**
* ofnode_get_child_count() - get the child count of a ofnode
*