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DateFri, 27 May 2011 14:13:45 -0600
FromGrant Likely <>
SubjectRe: [RFC PATCH v4 3/6] MIPS: Octeon: Add device tree source files.
On Fri, May 27, 2011 at 10:00:02AM -0700, David Daney wrote:
> On 05/26/2011 06:56 PM, Grant Likely wrote:
> >>+- #interrupt-cells: Must be<2>. The first cell is the GPIO pin
> >>+ connected to the interrupt source. The second cell is the interrupt
> >>+ triggering protocol and may have one of four values:
> >>+ 0 - level triggered active high.
> >>+ 1 - level triggered active low
> >>+ 2 - edge triggered on the rising edge.
> >>+ 3 - edge triggered on the falling edge.
> >
> >Since you're choosing arbitrary values here anyway, it's convenient to
> >follow the lead of include/linux/irq.h and using 1->edge rising,
> >2->edge falling, 4->level high, 8->level low. In the past every irq
> >controller kind of did it's own thing, but that's not very scalable.
> >
>
> OK. I will use those still somewhat arbitrary values instead.

Indeed, they are still completely arbitrary, but at least they are the
same completely arbitrary values. :-)

g.



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