Subject: Re: [PATCH 12/14] Add device tree for Ebony

From: Segher Boessenkool <[email-masked]>
Date: Thu, 22 Feb 2007 07:49:53 +0100

>> Since UIC1 is cascaded off UIC0 in the interrupt tree,
>> UIC1 should have an interrupt-parent pointing to UIC0
>> so the interrupt tree can be traversed to the root.
>
> Not necessary if UIC0 is the device tree parent of UIC1.

For the archives: this is wrong, all interrupt controllers
(except the root one) are required to have an "interrupt-parent"
property -- this is how the root interrupt controller is
determined.

Segher