irqchip/irq-vt8500: Drop redundant copy of the device node pointer

Inside vt8500_irq_init(), np is the same as node. Drop it.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250506-vt8500-intc-updates-v2-2-a3a0606cf92d@gmail.com

Author: alchark

drivers/irqchip/irq-vt8500.c

@@ -191,15 +191,14 @@ static int __init vt8500_irq_init(struct device_node *node,
 				  struct device_node *parent)
 {
 	int irq, i;
-	struct device_node *np = node;
 
 	if (active_cnt == VT8500_INTC_MAX) {
 		pr_err("%s: Interrupt controllers > VT8500_INTC_MAX\n",
 								__func__);
 		goto out;
 	}
 
-	intc[active_cnt].base = of_iomap(np, 0);
+	intc[active_cnt].base = of_iomap(node, 0);
 	intc[active_cnt].domain = irq_domain_add_linear(node, 64,
 			&vt8500_irq_domain_ops,	&intc[active_cnt]);
 
@@ -222,16 +221,16 @@ static int __init vt8500_irq_init(struct device_node *node,
 	active_cnt++;
 
 	/* check if this is a slaved controller */
-	if (of_irq_count(np) != 0) {
+	if (of_irq_count(node) != 0) {
 		/* check that we have the correct number of interrupts */
-		if (of_irq_count(np) != 8) {
+		if (of_irq_count(node) != 8) {
 			pr_err("%s: Incorrect IRQ map for slaved controller\n",
 					__func__);
 			return -EINVAL;
 		}
 
 		for (i = 0; i < 8; i++) {
-			irq = irq_of_parse_and_map(np, i);
+			irq = irq_of_parse_and_map(node, i);
 			enable_irq(irq);
 		}