[PATCH] ARM: S5P: Can handle edge interrupt handler

Huisung Kang hs1218.kang at samsung.com
Fri Feb 10 08:02:42 EST 2012


From: KeyYoung Park <keyyoung.park at samsung.com>

While wake up, if external interrupt uses handle_level_irq
as handle_irq (it actually uses edge type irq), That interrupt is missed.
So, if external uses edge type irq, it should use handle_edge_irq.

Signed-off-by: KeyYoung Park <keyyoung.park at samsung.com>
Signed-off-by: Huisung Kang <hs1218.kang at samsung.com>
---
 arch/arm/plat-s5p/irq-eint.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/arm/plat-s5p/irq-eint.c b/arch/arm/plat-s5p/irq-eint.c
index c496b35..6ed395e 100644
--- a/arch/arm/plat-s5p/irq-eint.c
+++ b/arch/arm/plat-s5p/irq-eint.c
@@ -65,6 +65,7 @@ static int s5p_irq_eint_set_type(struct irq_data *data, unsigned int type)
 	int shift;
 	u32 ctrl, mask;
 	u32 newvalue = 0;
+	struct irq_desc *desc = irq_to_desc(data->irq);
 
 	switch (type) {
 	case IRQ_TYPE_EDGE_RISING:
@@ -115,6 +116,11 @@ static int s5p_irq_eint_set_type(struct irq_data *data, unsigned int type)
 	else
 		printk(KERN_ERR "No such irq number %d", offs);
 
+	if (type & IRQ_TYPE_EDGE_BOTH)
+		desc->handle_irq = handle_edge_irq;
+	else
+		desc->handle_irq = handle_level_irq;
+
 	return 0;
 }
 
-- 
1.7.1





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