diff options
| author | Andrew Victor <andrew@sanpeople.com> | 2006-06-19 15:26:52 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-06-19 15:26:52 +0100 |
| commit | 37f2e4bc120bd784e7f69f961233e1c16b74d170 (patch) | |
| tree | fbe1d1b32bc81c0b5f5cf030639a13a51f08906b /arch | |
| parent | 10e8e1fb758eed5cfb0cae1b770f842624851e7b (diff) | |
| download | lwn-37f2e4bc120bd784e7f69f961233e1c16b74d170.tar.gz lwn-37f2e4bc120bd784e7f69f961233e1c16b74d170.zip | |
[ARM] 3582/1: AT91RM9200 IRQ trigger types
Patch from Andrew Victor
The AIC interrupt controller's set_irq_type() can also be used for
internal interrupts. IRQT_LOW and IRQT_FALLING are the only options not
supported for the internal interrupts.
[Original patch from Karl Olsen]
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-at91rm9200/irq.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/mach-at91rm9200/irq.c b/arch/arm/mach-at91rm9200/irq.c index cb62bc83a1dd..cc545b2c4388 100644 --- a/arch/arm/mach-at91rm9200/irq.c +++ b/arch/arm/mach-at91rm9200/irq.c @@ -92,10 +92,6 @@ static int at91rm9200_irq_type(unsigned irq, unsigned type) { unsigned int smr, srctype; - /* change triggering only for FIQ and external IRQ0..IRQ6 */ - if ((irq < AT91_ID_IRQ0) && (irq != AT91_ID_FIQ)) - return -EINVAL; - switch (type) { case IRQT_HIGH: srctype = AT91_AIC_SRCTYPE_HIGH; @@ -104,9 +100,13 @@ static int at91rm9200_irq_type(unsigned irq, unsigned type) srctype = AT91_AIC_SRCTYPE_RISING; break; case IRQT_LOW: + if ((irq > AT91_ID_FIQ) && (irq < AT91_ID_IRQ0)) /* only supported on external interrupts */ + return -EINVAL; srctype = AT91_AIC_SRCTYPE_LOW; break; case IRQT_FALLING: + if ((irq > AT91_ID_FIQ) && (irq < AT91_ID_IRQ0)) /* only supported on external interrupts */ + return -EINVAL; srctype = AT91_AIC_SRCTYPE_FALLING; break; default: |