[PATCH 2/5] powerpc: Generic device tree for all AmigaOne boards

[Grant Likely]

On Wed, Jan 7, 2009 at 3:10 PM, Scott Wood <scottwood at freescale.com> wrote:
> On Wed, Jan 07, 2009 at 09:41:14AM -0700, Grant Likely wrote:
>> > +                       8042 at 60 {
>> > +                               device_type = "8042";
>> > +                               reg = <1 0x00000060 0x00000001
>> > +                                      1 0x00000064 0x00000001>;
>> > +                               // IRQ1, IRQ12 (rising edge)
>> > +                               interrupts = <1 3 12 3>;
>>
>> For the flattened device tree, I think we've settled on the convention
>> that every node with an IRQ connection should have both the
>> interrupt-parent and interrupts properties.  (ie. don't rely on the
>> parent node's interrupt-parent property.)
>
> Why?

Defensive programming.  To not rely on implicit relationships

g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.