diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c
index f6b2e69a2f4e..b3774f82855a 100644
--- a/drivers/irqchip/irq-renesas-rzg2l.c
+++ b/drivers/irqchip/irq-renesas-rzg2l.c
@@ -161,7 +161,7 @@ static void rzg2l_clear_irq_int(struct rzg2l_irqc_priv *priv, unsigned int hwirq
 	 * falling/rising-edge.
 	 */
 	if ((iscr & bit) && (iitsr & IITSR_IITSEL_MASK(hw_irq))) {
-		writel_relaxed(iscr & ~bit, priv->base + ISCR);
+		writel_relaxed(~bit, priv->base + ISCR);
 		/*
 		 * Enforce that the posted write is flushed to prevent that the
 		 * just handled interrupt is raised again.
@@ -177,7 +177,7 @@ static void rzg2l_clear_tint_int(struct rzg2l_irqc_priv *priv, unsigned int hwir
 
 	reg = readl_relaxed(priv->base + TSCR);
 	if (reg & bit) {
-		writel_relaxed(reg & ~bit, priv->base + TSCR);
+		writel_relaxed(~bit, priv->base + TSCR);
 		/*
 		 * Enforce that the posted write is flushed to prevent that the
 		 * just handled interrupt is raised again.