[3.19.y-ckt stable] Patch "gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.y-ckt4.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 09b7d2a937c21f126df8d584e11f00d24e46cc43 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu at intel.com>
Date: Thu, 28 May 2015 10:58:49 +0800
Subject: gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip

commit 61e749d7e1627d375156553ea0ae83c4f6bb5a9b upstream.

The CrystalCove GPIO irqchip doesn't have irq_set_wake callback defined
so we should set IRQCHIP_SKIP_SET_WAKE for it or it would cause an irq
desc's wake_depth unbalanced warning during system resume phase from the
gpio_keys driver, which is the driver for the power button of the ASUS
T100 laptop.

Signed-off-by: Aaron Lu <aaron.lu at intel.com>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/gpio/gpio-crystalcove.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c
index 3d9e08f..57cd089 100644
--- a/drivers/gpio/gpio-crystalcove.c
+++ b/drivers/gpio/gpio-crystalcove.c
@@ -250,6 +250,7 @@ static struct irq_chip crystalcove_irqchip = {
 	.irq_set_type		= crystalcove_irq_type,
 	.irq_bus_lock		= crystalcove_bus_lock,
 	.irq_bus_sync_unlock	= crystalcove_bus_sync_unlock,
+	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };

 static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data)
--
1.9.1