diff --git a/include/libfdt.h b/include/libfdt.h
index cf97bf0..d0dea66 100644
--- a/include/libfdt.h
+++ b/include/libfdt.h
@@ -866,6 +866,17 @@
  */
 int fdt_count_strings(const void *fdt, int node, const char *property);
 
+/**
+ * fdt_find_string - find a string in a string list and return its index
+ * @fdt: pointer to the device tree blob
+ * @node: offset of the node
+ * @property: name of the property containing the string list
+ * @string: string to look up in the string list
+ * @return: the index of the string or negative on error
+ */
+int fdt_find_string(const void *fdt, int node, const char *property,
+		    const char *string);
+
 /**********************************************************************/
 /* Read-only functions (addressing related)                           */
 /**********************************************************************/
diff --git a/lib/libfdt/fdt_ro.c b/lib/libfdt/fdt_ro.c
index cb06a9b..fec4a0a 100644
--- a/lib/libfdt/fdt_ro.c
+++ b/lib/libfdt/fdt_ro.c
@@ -511,6 +511,32 @@
 	return count;
 }
 
+int fdt_find_string(const void *fdt, int node, const char *property,
+		    const char *string)
+{
+	const char *list, *end;
+	int len, index = 0;
+
+	list = fdt_getprop(fdt, node, property, &len);
+	if (!list)
+		return len;
+
+	end = list + len;
+	len = strlen(string);
+
+	while (list < end) {
+		int l = strlen(list);
+
+		if (l == len && memcmp(list, string, len) == 0)
+			return index;
+
+		list += l + 1;
+		index++;
+	}
+
+	return -FDT_ERR_NOTFOUND;
+}
+
 int fdt_node_check_compatible(const void *fdt, int nodeoffset,
 			      const char *compatible)
 {