diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c
index 409ed4b..657ca14 100644
--- a/drivers/clk/st/clk-flexgen.c
+++ b/drivers/clk/st/clk-flexgen.c
@@ -245,7 +245,7 @@
 	const char **parents;
 	int nparents, i;
 
-	nparents = of_count_phandle_with_args(np, "clocks", "#clock-cells");
+	nparents = of_clk_get_parent_count(np);
 	if (WARN_ON(nparents <= 0))
 		return NULL;