From 4332e0144fe44cfc9a9c851f0edcab92ead2adbd Mon Sep 17 00:00:00 2001
From: William Breathitt Gray <vilhelm.gray@gmail.com>
Date: Wed, 20 Jan 2016 13:57:31 -0500
Subject: gpio: 104-idi-48: Allow IRQ sharing

The ACCES 104-IDI-48 can differentiate between its own and other
devices' interrupt requests. Therefore, IRQ sharing is possible and
should be permitted.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c
index 52eed32..285a075 100644
--- a/drivers/gpio/gpio-104-idi-48.c
+++ b/drivers/gpio/gpio-104-idi-48.c
@@ -267,7 +267,8 @@ static int __init idi_48_probe(struct platform_device *pdev)
 		goto err_gpiochip_irqchip_add;
 	}
 
-	err = request_irq(irq, idi_48_irq_handler, 0, name, idi48gpio);
+	err = request_irq(irq, idi_48_irq_handler, IRQF_SHARED, name,
+		idi48gpio);
 	if (err) {
 		dev_err(dev, "IRQ handler registering failed (%d)\n", err);
 		goto err_request_irq;
-- 
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