linux-kernel - [PATCH v2] genirq: Set IRQCHIP_SKIP_SET_WAKE flag for dummy_irq

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Message-ID: <552E1DD3.4040106@ti.com>
Date:	Wed, 15 Apr 2015 11:14:11 +0300
From:	Roger Quadros <rogerq@...com>
To:	<tglx@...utronix.de>
CC:	<cw00.choi@...sung.com>, <balbi@...com>, <tony@...mide.com>,
	<linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>
Subject: [PATCH v2] genirq: Set IRQCHIP_SKIP_SET_WAKE flag for dummy_irq_chip

Without this system suspend is broken on systems that have
drivers calling enable/disable_irq_wake() for interrupts based off
the dummy irq hook.
(e.g. drivers/gpio/gpio-pcf857x.c)

http://article.gmane.org/gmane.linux.kernel/1879035

Signed-off-by: Roger Quadros <rogerq@...com>
---
 kernel/irq/dummychip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/irq/dummychip.c b/kernel/irq/dummychip.c
index 988dc58..2feb6fe 100644
--- a/kernel/irq/dummychip.c
+++ b/kernel/irq/dummychip.c
@@ -57,5 +57,6 @@ struct irq_chip dummy_irq_chip = {
 	.irq_ack	= noop,
 	.irq_mask	= noop,
 	.irq_unmask	= noop,
+	.flags		= IRQCHIP_SKIP_SET_WAKE,
 };
 EXPORT_SYMBOL_GPL(dummy_irq_chip);
-- 
2.1.0

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