libpdbg: Add API to get device tree path and find target via path

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Reviewed-by: Amitay Isaacs <amitay@ozlabs.org>

2 files changed, 15 insertions, 0 deletions

diff --git a/libpdbg/libpdbg.c b/libpdbg/libpdbg.c
index ccaad3e..f77138a 100644
--- a/libpdbg/libpdbg.c
+++ b/libpdbg/libpdbg.c
@@ -135,6 +135,19 @@ const char *pdbg_target_dn_name(struct pdbg_target *target)
 	return target->dn_name;
 }
 
+char *pdbg_target_path(const struct pdbg_target *target)
+{
+	return dt_get_path(target);
+}
+
+struct pdbg_target *pdbg_target_from_path(struct pdbg_target *target, const char *path)
+{
+	if (!target)
+		target = dt_root;
+
+	return dt_find_by_path(target, path);
+}
+
 void pdbg_set_target_property(struct pdbg_target *target, const char *name, const void *val, size_t size)
 {
 	struct dt_property *p;
diff --git a/libpdbg/libpdbg.h b/libpdbg/libpdbg.h
index 138521c..b11866a 100644
--- a/libpdbg/libpdbg.h
+++ b/libpdbg/libpdbg.h
@@ -84,6 +84,8 @@ void pdbg_target_release(struct pdbg_target *target);
 enum pdbg_target_status pdbg_target_status(struct pdbg_target *target);
 void pdbg_target_status_set(struct pdbg_target *target, enum pdbg_target_status status);
 uint32_t pdbg_target_index(struct pdbg_target *target);
+char *pdbg_target_path(const struct pdbg_target *target);
+struct pdbg_target *pdbg_target_from_path(struct pdbg_target *target, const char *path);
 uint32_t pdbg_parent_index(struct pdbg_target *target, char *klass);
 char *pdbg_target_class_name(struct pdbg_target *target);
 char *pdbg_target_name(struct pdbg_target *target);