pinctrl: renesas: rzg2l: Avoid configuring ISEL in gpio_irq_{en,dis}able*(

Currently on irq_disable(), we are disabling gpio interrupt enable(ISEL).
That means the pin is just gpio input and not gpio input interrupt any
more.  So, move configuring ISEL in rzg2l_gpio_child_to_parent_hwirq()/
rzg2l_gpio_irq_domain_free() so that the pin will be gpioint always even
during irq_disable().
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/20240206135318.165426-1-biju.das.jz@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/renesas/pinctrl-rzg2l.c

@@ -1836,22 +1836,18 @@ static void rzg2l_gpio_irq_endisable(struct rzg2l_pinctrl *pctrl,
 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);
 }
 
 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);
 
 	gpiochip_enable_irq(gc, hwirq);
-	rzg2l_gpio_irq_endisable(pctrl, hwirq, true);
 	irq_chip_enable_parent(d);
 }
 
@@ -1933,6 +1929,7 @@ static int rzg2l_gpio_child_to_parent_hwirq(struct gpio_chip *gc,
 		goto err;
 	}
 
+	rzg2l_gpio_irq_endisable(pctrl, child, true);
 	pctrl->hwirq[irq] = child;
 	irq += RZG2L_TINT_IRQ_START_INDEX;
 
@@ -1976,6 +1973,7 @@ static void rzg2l_gpio_irq_domain_free(struct irq_domain *domain, unsigned int v
 
 		for (i = 0; i < RZG2L_TINT_MAX_INTERRUPT; i++) {
 			if (pctrl->hwirq[i] == hwirq) {
+				rzg2l_gpio_irq_endisable(pctrl, hwirq, false);
 				rzg2l_gpio_free(gc, hwirq);
 				spin_lock_irqsave(&pctrl->bitmap_lock, flags);
 				bitmap_release_region(pctrl->tint_slot, i, get_order(1));