[ARM] pxa: add set_type to the pxa3xx ext_wakeup irq chip.

pxa3xx cpu needs the irq type setup to be able to
wakeup from low power mode on IRQ_WAKEUPx events.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index f544e58e1536..c18d2dfa3faf 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -552,11 +552,23 @@ static void pxa_unmask_ext_wakeup(unsigned int irq)
         PECR |= PECR_IE(irq - IRQ_WAKEUP0);
 }
 
+static int pxa_set_ext_wakeup_type(unsigned int irq, unsigned int flow_type)
+{
+        if (flow_type & IRQ_TYPE_EDGE_RISING)
+                PWER |= 1 << (irq - IRQ_WAKEUP0);
+
+        if (flow_type & IRQ_TYPE_EDGE_FALLING)
+                PWER |= 1 << (irq - IRQ_WAKEUP0 + 2);
+
+        return 0;
+}
+
 static struct irq_chip pxa_ext_wakeup_chip = {
         .name           = "WAKEUP",
         .ack            = pxa_ack_ext_wakeup,
         .mask           = pxa_mask_ext_wakeup,
         .unmask         = pxa_unmask_ext_wakeup,
+        .set_type       = pxa_set_ext_wakeup_type,
 };
 
 static void __init pxa_init_ext_wakeup_irq(set_wake_t fn)