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authorMarek Szyprowski <m.szyprowski@samsung.com>2011-08-13 12:55:36 +0900
committerKukjin Kim <kgene.kim@samsung.com>2011-08-19 20:57:37 +0900
commit70b0e82bc7d03d33de5bceea92d419a9be4340ee (patch)
tree04c9f2c54ce443fddd37f94b67d8c399372aeaef /arch/arm/mach-exynos4
parent995b528ad25968472742c50fe964d44fac2b857a (diff)
ARM: EXYNOS4: add required chained_irq_enter/exit to eint code
This patch adds chained IRQ enter/exit functions to external interrupt handler in order to function correctly on primary controllers with different methods of flow control. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos4')
-rw-r--r--arch/arm/mach-exynos4/irq-eint.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/irq-eint.c b/arch/arm/mach-exynos4/irq-eint.c
index 9d87d2ac7f68..badb8c66fc9b 100644
--- a/arch/arm/mach-exynos4/irq-eint.c
+++ b/arch/arm/mach-exynos4/irq-eint.c
@@ -23,6 +23,8 @@
#include <mach/regs-gpio.h>
+#include <asm/mach/irq.h>
+
static DEFINE_SPINLOCK(eint_lock);
static unsigned int eint0_15_data[16];
@@ -184,8 +186,11 @@ static inline void exynos4_irq_demux_eint(unsigned int start)
static void exynos4_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
{
+ struct irq_chip *chip = irq_get_chip(irq);
+ chained_irq_enter(chip, desc);
exynos4_irq_demux_eint(IRQ_EINT(16));
exynos4_irq_demux_eint(IRQ_EINT(24));
+ chained_irq_exit(chip, desc);
}
static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
@@ -193,6 +198,7 @@ static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
u32 *irq_data = irq_get_handler_data(irq);
struct irq_chip *chip = irq_get_chip(irq);
+ chained_irq_enter(chip, desc);
chip->irq_mask(&desc->irq_data);
if (chip->irq_ack)
@@ -201,6 +207,7 @@ static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
generic_handle_irq(*irq_data);
chip->irq_unmask(&desc->irq_data);
+ chained_irq_exit(chip, desc);
}
int __init exynos4_init_irq_eint(void)

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