clk: ti: make use of of_clk_parent_fill helper function

Use of_clk_parent_fill to fill in the parent clock names' array.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/ti/apll.c

@@ -172,7 +172,6 @@ static void __init of_dra7_apll_setup(struct device_node *node)
 	struct clk_hw_omap *clk_hw = NULL;
 	struct clk_init_data *init = NULL;
 	const char **parent_names = NULL;
-	int i;
 
 	ad = kzalloc(sizeof(*ad), GFP_KERNEL);
 	clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
@@ -197,8 +196,7 @@ static void __init of_dra7_apll_setup(struct device_node *node)
 	if (!parent_names)
 		goto cleanup;
 
-	for (i = 0; i < init->num_parents; i++)
-		parent_names[i] = of_clk_get_parent_name(node, i);
+	of_clk_parent_fill(node, parent_names, init->num_parents);
 
 	init->parent_names = parent_names;