linux-kernel - [PATCH 2/6] irqchip/brcmstb-l2: Set controller as wake-up source

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Message-Id: <20200709223016.989-3-f.fainelli@gmail.com>
Date:   Thu,  9 Jul 2020 15:30:12 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Justin Chen <justinpopo6@...il.com>,
        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>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM BCM7XXX ARM
        ARCHITECTURE),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-mips@...r.kernel.org (open list:BROADCOM BMIPS MIPS ARCHITECTURE),
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM7XXX
        ARM ARCHITECTURE)
Subject: [PATCH 2/6] irqchip/brcmstb-l2: Set controller as wake-up source

From: Justin Chen <justinpopo6@...il.com>

Utilize the Broadcom interrupt controller standard property
"brcm,irq-can-wake" to flag whether this particular interrupt controller
instance is wake-up capable.

Since we do not know what type of parent interrupt controller we are
interfaced with, ensure that enable_irq_wake() is called early on.

Signed-off-by: Justin Chen <justinpopo6@...il.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 drivers/irqchip/irq-brcmstb-l2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index 0298ede67e51..157fad184bdc 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -254,6 +254,7 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np,
 		 */
 		data->gc->wake_enabled = 0xffffffff;
 		ct->chip.irq_set_wake = irq_gc_set_wake;
+		enable_irq_wake(parent_irq);
 	}
 
 	pr_info("registered L2 intc (%pOF, parent irq: %d)\n", np, parent_irq);
-- 
2.17.1