diff options
Diffstat (limited to 'arch/arm/mach-at91rm9200/irq.c')
| -rw-r--r-- | arch/arm/mach-at91rm9200/irq.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/mach-at91rm9200/irq.c b/arch/arm/mach-at91rm9200/irq.c index 3e488117ca9..2cea07a34a8 100644 --- a/arch/arm/mach-at91rm9200/irq.c +++ b/arch/arm/mach-at91rm9200/irq.c @@ -47,6 +47,10 @@ static void at91_aic_unmask_irq(unsigned int irq) at91_sys_write(AT91_AIC_IECR, 1 << irq); } +unsigned int at91_extern_irq; + +#define is_extern_irq(irq) ((1 << (irq)) & at91_extern_irq) + static int at91_aic_set_type(unsigned irq, unsigned type) { unsigned int smr, srctype; @@ -59,14 +63,16 @@ static int at91_aic_set_type(unsigned irq, unsigned type) srctype = AT91_AIC_SRCTYPE_RISING; break; case IRQT_LOW: - if ((irq > AT91_ID_FIQ) && (irq < AT91RM9200_ID_IRQ0)) /* only supported on external interrupts */ + if ((irq == AT91_ID_FIQ) || is_extern_irq(irq)) /* only supported on external interrupts */ + srctype = AT91_AIC_SRCTYPE_LOW; + else return -EINVAL; - srctype = AT91_AIC_SRCTYPE_LOW; break; case IRQT_FALLING: - if ((irq > AT91_ID_FIQ) && (irq < AT91RM9200_ID_IRQ0)) /* only supported on external interrupts */ + if ((irq == AT91_ID_FIQ) || is_extern_irq(irq)) /* only supported on external interrupts */ + srctype = AT91_AIC_SRCTYPE_FALLING; + else return -EINVAL; - srctype = AT91_AIC_SRCTYPE_FALLING; break; default: return -EINVAL; |