irqchip/gic-v3: Allow interrupt to be configured as wake-up sources

Although GICv3 doesn't directly offers support for wake-up interrupts
and relies on external HW for this, it shouldn't prevent the driver
for such HW from doing it work.

Let's set the required flags on the irq_chip structures.

Change-Id: Ibb84bcf2f3fc2e805532099231b49c27c49658bd
Git-Commit: 4110b5cbb014ebaaeb3d18ac8b98470b7251847d
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Reported-by: Lina Iyer <ilina@codeaurora.org>
Tested-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Raghavendra Kakarla <rkakarla@codeaurora.org>

drivers/irqchip/irq-gic-v3.c

@@ -988,7 +988,9 @@ static struct irq_chip gic_chip = {
 	.irq_set_affinity	= gic_set_affinity,
 	.irq_get_irqchip_state	= gic_irq_get_irqchip_state,
 	.irq_set_irqchip_state	= gic_irq_set_irqchip_state,
-	.flags			= IRQCHIP_SET_TYPE_MASKED,
+	.flags			= IRQCHIP_SET_TYPE_MASKED |
+				  IRQCHIP_SKIP_SET_WAKE |
+				  IRQCHIP_MASK_ON_SUSPEND,
 };
 
 static struct irq_chip gic_eoimode1_chip = {
@@ -1001,7 +1003,9 @@ static struct irq_chip gic_eoimode1_chip = {
 	.irq_get_irqchip_state	= gic_irq_get_irqchip_state,
 	.irq_set_irqchip_state	= gic_irq_set_irqchip_state,
 	.irq_set_vcpu_affinity	= gic_irq_set_vcpu_affinity,
-	.flags			= IRQCHIP_SET_TYPE_MASKED,
+	.flags			= IRQCHIP_SET_TYPE_MASKED |
+				  IRQCHIP_SKIP_SET_WAKE |
+				  IRQCHIP_MASK_ON_SUSPEND,
 };
 
 #define GIC_ID_NR		(1U << gic_data.rdists.id_bits)