irqchip/renesas-rzg2l: Rename rzg2l_irq_eoi()

Rename rzg2l_irq_eoi()->rzg2l_clear_irq_int() and simplify the code by
removing redundant priv local variable.
Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/irqchip/irq-renesas-rzg2l.c

@@ -85,10 +85,9 @@ static struct rzg2l_irqc_priv *irq_data_to_priv(struct irq_data *data)
 	return data->domain->host_data;
 }
 
-static void rzg2l_irq_eoi(struct irq_data *d)
+static void rzg2l_clear_irq_int(struct rzg2l_irqc_priv *priv, unsigned int hwirq)
 {
-	unsigned int hw_irq = irqd_to_hwirq(d) - IRQC_IRQ_START;
-	struct rzg2l_irqc_priv *priv = irq_data_to_priv(d);
+	unsigned int hw_irq = hwirq - IRQC_IRQ_START;
 	u32 bit = BIT(hw_irq);
 	u32 iitsr, iscr;
 
@@ -132,7 +131,7 @@ static void rzg2l_irqc_eoi(struct irq_data *d)
 
 	raw_spin_lock(&priv->lock);
 	if (hw_irq >= IRQC_IRQ_START && hw_irq <= IRQC_IRQ_COUNT)
-		rzg2l_irq_eoi(d);
+		rzg2l_clear_irq_int(priv, hw_irq);
 	else if (hw_irq >= IRQC_TINT_START && hw_irq < IRQC_NUM_IRQ)
 		rzg2l_clear_tint_int(priv, hw_irq);
 	raw_spin_unlock(&priv->lock);