[PATCH 3.19.y-ckt 072/251] gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip

[Kamal Mostafa]

3.19.8-ckt4 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aaron Lu <aaron.lu at intel.com>

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