gpio: pcf857x: Add IRQF_SHARED when request irq

It's quite possible that multiple pcf857x can be hooked up
to the same interrupt line with the processor. So add IRQF_SHARED
in request irq..

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 5acffed..27b4675 100644 (file)
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -262,7 +262,7 @@ static int pcf857x_irq_domain_init(struct pcf857x *gpio,
        /* enable real irq */
        status = devm_request_threaded_irq(&client->dev, client->irq,
                                NULL, pcf857x_irq, IRQF_ONESHOT |
-                               IRQF_TRIGGER_FALLING,
+                               IRQF_TRIGGER_FALLING | IRQF_SHARED,
                                dev_name(&client->dev), gpio);
 
        if (status)