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-rw-r--r--lib/fdtdec.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 4a5ab712b5..76d38089ee 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -133,6 +133,21 @@ int fdtdec_next_compatible(const void *blob, int node,
return fdt_node_offset_by_compatible(blob, node, compat_names[id]);
}
+int fdtdec_next_compatible_subnode(const void *blob, int node,
+ enum fdt_compat_id id, int *depthp)
+{
+ do {
+ node = fdt_next_node(blob, node, depthp);
+ } while (*depthp > 1);
+
+ /* If this is a direct subnode, and compatible, return it */
+ if (*depthp == 1 && 0 == fdt_node_check_compatible(
+ blob, node, compat_names[id]))
+ return node;
+
+ return -FDT_ERR_NOTFOUND;
+}
+
int fdtdec_next_alias(const void *blob, const char *name,
enum fdt_compat_id id, int *upto)
{