ARM: 6061/1: PL061 GPIO: Bug fix - setting gpio for HIGH_LEVEL interrupt is not working.

In current implementation of PL061, setting type of irq to HIGH_LEVEL is not
working. This patch fixes this bug.
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Acked-by: NBaruch Siach <baruch@tkos.co.il>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

drivers/gpio/pl061.c

@@ -189,7 +189,7 @@ static int pl061_irq_type(unsigned irq, unsigned trigger)
 		gpioibe &= ~(1 << offset);
 		if (trigger & IRQ_TYPE_EDGE_RISING)
 			gpioiev |= 1 << offset;
-		else
+		else if (trigger & IRQ_TYPE_EDGE_FALLING)
 			gpioiev &= ~(1 << offset);
 	}
 	writeb(gpioibe, chip->base + GPIOIBE);