linux-kernel - [PATCH 3/6] irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary

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Message-Id: <20190913191026.8801-4-f.fainelli@gmail.com>
Date:   Fri, 13 Sep 2019 12:10:23 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Cernekee <cernekee@...il.com>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        bcm-kernel-feedback-list@...adcom.com (open list:BROADCOM BMIPS MIPS
        ARCHITECTURE),
        linux-mips@...r.kernel.org (open list:BROADCOM BMIPS MIPS ARCHITECTURE)
Subject: [PATCH 3/6] irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary

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@...il.com>
---
 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 c7e37eefec6d..0ad473249f16 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -297,6 +297,10 @@ 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);
 
-- 
2.17.1