linux-kernel - [PATCH AUTOSEL 4.9 18/42] irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary

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Message-Id: <20191211153510.23861-18-sashal@kernel.org>
Date:   Wed, 11 Dec 2019 10:34:46 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Marc Zyngier <maz@...nel.org>, Sasha Levin <sashal@...nel.org>,
        linux-mips@...ux-mips.org
Subject: [PATCH AUTOSEL 4.9 18/42] irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary

From: Florian Fainelli <f.fainelli@...il.com>

[ 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@...il.com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/r/20191024201415.23454-4-f.fainelli@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 6e24facebb46d..a571d9c6e42ae 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