[PATCH] irqchip/meson-gpio: Allow the GPIO interrupts to wake the system

[Igor Velkov via B4 Relay]

From: Igor Velkov <iav@xxxxxx>

meson_gpio_irq_chip has neither .irq_set_wake nor IRQCHIP_SKIP_SET_WAKE,
so enable_irq_wake() fails with -ENXIO for every interrupt routed through
it. Such an interrupt cannot wake the system from suspend.

Set IRQCHIP_SKIP_SET_WAKE, like the other hierarchical irqchips with a
GIC parent. The GIC sets the same flag, so irq_chip_set_wake_parent()
would end there anyway.

Tested on ODROID-HC4 with the PCF8563 alarm interrupt routed through this
controller: the alarm wakes the board from s2idle 4/4, and 0/1 without
this change.

Assisted-by: LLM
Signed-off-by: Igor Velkov <iav@xxxxxx>
---
 drivers/irqchip/irq-meson-gpio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
index 91a9c337fe6d..e0329ef5e4a2 100644
--- a/drivers/irqchip/irq-meson-gpio.c
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -538,7 +538,7 @@ static struct irq_chip meson_gpio_irq_chip = {
 #ifdef CONFIG_SMP
 	.irq_set_affinity	= irq_chip_set_affinity_parent,
 #endif
-	.flags			= IRQCHIP_SET_TYPE_MASKED,
+	.flags			= IRQCHIP_SET_TYPE_MASKED | IRQCHIP_SKIP_SET_WAKE,
 };
 
 static int meson_gpio_irq_domain_translate(struct irq_domain *domain,

---
base-commit: a90ee4305c4a5df72c11b31dacfdc76e00fcf78a
change-id: 20261008-meson-gpio-wake-f3bfa3bb2e5a

Best regards,
-- 
Igor Velkov <iav@xxxxxx>