Thomas Gleixner tglx at linutronix.de
Fri Jan 14 06:47:40 EST 2011

On Fri, 14 Jan 2011, Nicolas Ferre wrote:
> For AT91:
> - the platform does not provides irq_flags so default to
> IRQF_TRIGGER_FALLING | IRQF_ONESHOT as stated in the driver.
> - on at91sam9g10ek the touchscreen is wired to an full featured IRQ
> entry (configured with pullup in arch/arm/mach-at91/board-sam9261ek.c).
> - the irq description of plain interrupts is in arch/arm/mach-at91/irq.c
> and at91_aic_set_type() has an IRQ_TYPE_EDGE_FALLING entry.
> So it should be configured on falling edge...
> But: is seems that looking at at91_aic_set_type() initialization
> function, AIC is configured with:
> set_irq_handler(i, handle_level_irq);
> I do not know if it is the same as i.MX but it sound to be covered by
> explanation that you gave...

Seems to be the same problem. 



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