clk: davinci: Use of_get_available_child_by_name()

Simplify of_davinci_pll_init() by using of_get_available_child_by_name().

While at it, move of_node_put(child) inside the if block to avoid
additional check if of_child is NULL.

Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250410062040.6346-1-biju.das.jz@bp.renesas.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: bijudas

drivers/clk/davinci/pll.c

@@ -763,13 +763,14 @@ int of_davinci_pll_init(struct device *dev, struct device_node *node,
 		return PTR_ERR(clk);
 	}
 
-	child = of_get_child_by_name(node, "pllout");
-	if (of_device_is_available(child))
+	child = of_get_available_child_by_name(node, "pllout");
+	if (child) {
 		of_clk_add_provider(child, of_clk_src_simple_get, clk);
-	of_node_put(child);
+		of_node_put(child);
+	}
 
-	child = of_get_child_by_name(node, "sysclk");
-	if (of_device_is_available(child)) {
+	child = of_get_available_child_by_name(node, "sysclk");
+	if (child) {
 		struct clk_onecell_data *clk_data;
 		struct clk **clks;
 		int n_clks =  max_sysclk_id + 1;
@@ -803,11 +804,11 @@ int of_davinci_pll_init(struct device *dev, struct device_node *node,
 				clks[(*div_info)->id] = clk;
 		}
 		of_clk_add_provider(child, of_clk_src_onecell_get, clk_data);
+		of_node_put(child);
 	}
-	of_node_put(child);
 
-	child = of_get_child_by_name(node, "auxclk");
-	if (of_device_is_available(child)) {
+	child = of_get_available_child_by_name(node, "auxclk");
+	if (child) {
 		char child_name[MAX_NAME_SIZE];
 
 		snprintf(child_name, MAX_NAME_SIZE, "%s_auxclk", info->name);
@@ -818,11 +819,12 @@ int of_davinci_pll_init(struct device *dev, struct device_node *node,
 				 child_name, PTR_ERR(clk));
 		else
 			of_clk_add_provider(child, of_clk_src_simple_get, clk);
+
+		of_node_put(child);
 	}
-	of_node_put(child);
 
-	child = of_get_child_by_name(node, "obsclk");
-	if (of_device_is_available(child)) {
+	child = of_get_available_child_by_name(node, "obsclk");
+	if (child) {
 		if (obsclk_info)
 			clk = davinci_pll_obsclk_register(dev, obsclk_info, base);
 		else
@@ -833,8 +835,8 @@ int of_davinci_pll_init(struct device *dev, struct device_node *node,
 				 PTR_ERR(clk));
 		else
 			of_clk_add_provider(child, of_clk_src_simple_get, clk);
+		of_node_put(child);
 	}
-	of_node_put(child);
 
 	return 0;
 }