pinctrl: renesas: rzg2l: Simplify rzg2l_gpio_irq_{en,dis}able()

Simplify rzg2l_gpio_irq_{en,dis}able() by adding a helper function
rzg2l_gpio_irq_endisable().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240206135115.151218-3-biju.das.jz@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/renesas/pinctrl-rzg2l.c

@@ -1809,11 +1809,9 @@ static int rzg2l_gpio_get_gpioint(unsigned int virq, struct rzg2l_pinctrl *pctrl
 	return gpioint;
 }
 
-static void rzg2l_gpio_irq_disable(struct irq_data *d)
+static void rzg2l_gpio_irq_endisable(struct rzg2l_pinctrl *pctrl,
+				     unsigned int hwirq, bool enable)
 {
-	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
-	struct rzg2l_pinctrl *pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip);
-	unsigned int hwirq = irqd_to_hwirq(d);
 	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[hwirq];
 	u64 *pin_data = pin_desc->drv_data;
 	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
@@ -1821,8 +1819,6 @@ static void rzg2l_gpio_irq_disable(struct irq_data *d)
 	unsigned long flags;
 	void __iomem *addr;
 
-	irq_chip_disable_parent(d);
-
 	addr = pctrl->base + ISEL(off);
 	if (bit >= 4) {
 		bit -= 4;
@@ -1830,9 +1826,21 @@ static void rzg2l_gpio_irq_disable(struct irq_data *d)
 	}
 
 	spin_lock_irqsave(&pctrl->lock, flags);
-	writel(readl(addr) & ~BIT(bit * 8), addr);
+	if (enable)
+		writel(readl(addr) | BIT(bit * 8), addr);
+	else
+		writel(readl(addr) & ~BIT(bit * 8), addr);
 	spin_unlock_irqrestore(&pctrl->lock, flags);
+}
 
+static void rzg2l_gpio_irq_disable(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct rzg2l_pinctrl *pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip);
+	unsigned int hwirq = irqd_to_hwirq(d);
+
+	irq_chip_disable_parent(d);
+	rzg2l_gpio_irq_endisable(pctrl, hwirq, false);
 	gpiochip_disable_irq(gc, hwirq);
 }
 
@@ -1841,25 +1849,9 @@ static void rzg2l_gpio_irq_enable(struct irq_data *d)
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct rzg2l_pinctrl *pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip);
 	unsigned int hwirq = irqd_to_hwirq(d);
-	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[hwirq];
-	u64 *pin_data = pin_desc->drv_data;
-	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
-	u8 bit = RZG2L_PIN_ID_TO_PIN(hwirq);
-	unsigned long flags;
-	void __iomem *addr;
 
 	gpiochip_enable_irq(gc, hwirq);
-
-	addr = pctrl->base + ISEL(off);
-	if (bit >= 4) {
-		bit -= 4;
-		addr += 4;
-	}
-
-	spin_lock_irqsave(&pctrl->lock, flags);
-	writel(readl(addr) | BIT(bit * 8), addr);
-	spin_unlock_irqrestore(&pctrl->lock, flags);
-
+	rzg2l_gpio_irq_endisable(pctrl, hwirq, true);
 	irq_chip_enable_parent(d);
 }