From: viresh kumar <viresh.kumar@st.com>
Date: Thu, 29 Apr 2010 11:22:52 +0000 (+0100)
Subject: ARM: 6061/1: PL061 GPIO: Bug fix - setting gpio for HIGH_LEVEL interrupt is not working.
X-Git-Tag: firefly_0821_release~9833^2~2251^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=db7e1bc479cc941c53839b18ff811c7def0c52e7;p=firefly-linux-kernel-4.4.55.git

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: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c
index 2196f318114c..105701a1f05b 100644
--- a/drivers/gpio/pl061.c
+++ b/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);