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-rw-r--r--arch/powerpc/boot/flatdevtree.c13
-rw-r--r--arch/powerpc/boot/flatdevtree.h2
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/powerpc/boot/flatdevtree.c b/arch/powerpc/boot/flatdevtree.c
index e319a650291..bd006f75e5e 100644
--- a/arch/powerpc/boot/flatdevtree.c
+++ b/arch/powerpc/boot/flatdevtree.c
@@ -654,6 +654,19 @@ void *ft_find_device(struct ft_cxt *cxt, const char *srch_path)
return ft_get_phandle(cxt, node);
}
+void *ft_find_device_rel(struct ft_cxt *cxt, const void *top,
+ const char *srch_path)
+{
+ char *node;
+
+ node = ft_node_ph2node(cxt, top);
+ if (node == NULL)
+ return NULL;
+
+ node = ft_find_descendent(cxt, node, srch_path);
+ return ft_get_phandle(cxt, node);
+}
+
void *ft_find_descendent(struct ft_cxt *cxt, void *top, const char *srch_path)
{
struct ft_atom atom;
diff --git a/arch/powerpc/boot/flatdevtree.h b/arch/powerpc/boot/flatdevtree.h
index b9cd9f61f35..1f37ca2d34f 100644
--- a/arch/powerpc/boot/flatdevtree.h
+++ b/arch/powerpc/boot/flatdevtree.h
@@ -97,6 +97,8 @@ int ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size);
void ft_dump_blob(const void *bphp);
void ft_merge_blob(struct ft_cxt *cxt, void *blob);
void *ft_find_device(struct ft_cxt *cxt, const char *srch_path);
+void *ft_find_device_rel(struct ft_cxt *cxt, const void *top,
+ const char *srch_path);
void *ft_find_descendent(struct ft_cxt *cxt, void *top, const char *srch_path);
int ft_get_prop(struct ft_cxt *cxt, const void *phandle, const char *propname,
void *buf, const unsigned int buflen);