linux-kernel - [PATCH] PM: suspend_device_irqs(): don't disable wakeup IRQs

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Date:	Mon,  4 May 2009 17:27:04 -0700
From:	Kevin Hilman <khilman@...prootsystems.com>
To:	linux-pm@...ts.linux-foundation.org
Cc:	linux-kernel@...r.kernel.org,
	Kevin Hilman <khilman@...prootsystems.com>
Subject: [PATCH] PM: suspend_device_irqs(): don't disable wakeup IRQs

Interrupts that are flagged as wakeup sources via set_irq_wake()
should not be disabled for suspend.

Signed-off-by: Kevin Hilman <khilman@...prootsystems.com>
---
 kernel/irq/pm.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index 638d8be..99113bd 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -28,6 +28,9 @@ void suspend_device_irqs(void)
 	for_each_irq_desc(irq, desc) {
 		unsigned long flags;
 
+		if (desc->status & IRQ_WAKEUP)
+			continue;
+
 		spin_lock_irqsave(&desc->lock, flags);
 		__disable_irq(desc, irq, true);
 		spin_unlock_irqrestore(&desc->lock, flags);
-- 
1.6.2.2

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