[PATCH 4.9 128/171] irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary

From: Greg Kroah-Hartman
Date: Thu Jan 02 2020 - 17:44:41 EST


From: Florian Fainelli <f.fainelli@xxxxxxxxx>

[ Upstream commit 27eebb60357ed5aa6659442f92907c0f7368d6ae ]

If the 'brcm,irq-can-wake' property is specified, make sure we also
enable the corresponding parent interrupt we are attached to.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20191024201415.23454-4-f.fainelli@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/irqchip/irq-bcm7038-l1.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index 6e24facebb46..a571d9c6e42a 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -282,6 +282,10 @@ static int __init bcm7038_l1_init_one(struct device_node *dn,
pr_err("failed to map parent interrupt %d\n", parent_irq);
return -EINVAL;
}
+
+ if (of_property_read_bool(dn, "brcm,irq-can-wake"))
+ enable_irq_wake(parent_irq);
+
irq_set_chained_handler_and_data(parent_irq, bcm7038_l1_irq_handle,
intc);

--
2.20.1