pinctrl: renesas: rzg2l: Configure the interrupt type on resume

Commit dce0919 ("irqchip/renesas-rzg2l: Do not set TIEN and TINT
source at the same time") removed the setup of TINT from
rzg2l_irqc_irq_enable().  To address the spurious interrupt issue the
setup of TINT has been moved in rzg2l_tint_set_edge() through
rzg2l_disable_tint_and_set_tint_source().  With this, the interrupts are
not properly re-configured after a suspend-to-RAM cycle.  To address
this issue and avoid spurious interrupts while resumming set the
interrupt type before enabling it.

Fixes: dce0919 ("irqchip/renesas-rzg2l: Do not set TIEN and TINT source at the same time")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240419063822.3467424-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: claudiubeznea

drivers/pinctrl/renesas/pinctrl-rzg2l.c

@@ -2045,7 +2045,9 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl)
 
 	for (unsigned int i = 0; i < RZG2L_TINT_MAX_INTERRUPT; i++) {
 		struct irq_data *data;
+		unsigned long flags;
 		unsigned int virq;
+		int ret;
 
 		if (!pctrl->hwirq[i])
 			continue;
@@ -2063,17 +2065,18 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl)
 			continue;
 		}
 
-		if (!irqd_irq_disabled(data)) {
-			unsigned long flags;
-
-			/*
-			 * This has to be atomically executed to protect against a concurrent
-			 * interrupt.
-			 */
-			raw_spin_lock_irqsave(&pctrl->lock.rlock, flags);
+		/*
+		 * This has to be atomically executed to protect against a concurrent
+		 * interrupt.
+		 */
+		raw_spin_lock_irqsave(&pctrl->lock.rlock, flags);
+		ret = rzg2l_gpio_irq_set_type(data, irqd_get_trigger_type(data));
+		if (!ret && !irqd_irq_disabled(data))
 			rzg2l_gpio_irq_enable(data);
-			raw_spin_unlock_irqrestore(&pctrl->lock.rlock, flags);
-		}
+		raw_spin_unlock_irqrestore(&pctrl->lock.rlock, flags);
+
+		if (ret)
+			dev_crit(pctrl->dev, "Failed to set IRQ type for virq=%u\n", virq);
 	}
 }