[ARM] pxa: use chip->ack() instead of accessing GEDR directly

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index 89f258c9e126..12d4ed338d03 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -281,7 +281,7 @@ static void viper_irq_handler(unsigned int irq, struct irq_desc *desc)
         do {
                 /* we're in a chained irq handler,
                  * so ack the interrupt by hand */
-                GEDR(VIPER_CPLD_GPIO) = GPIO_bit(VIPER_CPLD_GPIO);
+                desc->chip->ack(irq);
 
                 if (likely(pending)) {
                         irq = viper_bit_to_irq(__ffs(pending));