[tip:irq/urgent] irqchip/gic-v3: Allow interrupt to be configured as wake-up sources

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Commit-ID:  4110b5cbb014ebaaeb3d18ac8b98470b7251847d
Gitweb:     https://git.kernel.org/tip/4110b5cbb014ebaaeb3d18ac8b98470b7251847d
Author:     Marc Zyngier <marc.zyngier@xxxxxxx>
AuthorDate: Fri, 17 Aug 2018 09:18:01 +0100
Committer:  Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Mon, 20 Aug 2018 09:54:44 +0100

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.

Reported-by: Lina Iyer <ilina@xxxxxxxxxxxxxx>
Tested-by: Lina Iyer <ilina@xxxxxxxxxxxxxx>
Reviewed-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
 drivers/irqchip/irq-gic-v3.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index e214181b77b7..d5912f1ec884 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -861,7 +861,9 @@ 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 = {
@@ -874,7 +876,9 @@ 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 << GICD_TYPER_ID_BITS(gic_data.rdists.gicd_typer))



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