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Commit 70b0e82b authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Kukjin Kim
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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: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 995b528a

arch/arm/mach-exynos4/irq-eint.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -23,6 +23,8 @@ 




#include <mach/regs-gpio.h>

#include <mach/regs-gpio.h>





#include <asm/mach/irq.h>



static DEFINE_SPINLOCK(eint_lock);

static DEFINE_SPINLOCK(eint_lock);





static unsigned int eint0_15_data[16];

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)

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(16));

	exynos4_irq_demux_eint(IRQ_EINT(24));

	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)

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);

	u32 *irq_data = irq_get_handler_data(irq);

	struct irq_chip *chip = irq_get_chip(irq);

	struct irq_chip *chip = irq_get_chip(irq);





	chained_irq_enter(chip, desc);

	chip->irq_mask(&desc->irq_data);

	chip->irq_mask(&desc->irq_data);





	if (chip->irq_ack)

	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);

	generic_handle_irq(*irq_data);





	chip->irq_unmask(&desc->irq_data);

	chip->irq_unmask(&desc->irq_data);

	chained_irq_exit(chip, desc);

}

}





int __init exynos4_init_irq_eint(void)

int __init exynos4_init_irq_eint(void)