[PATCH v7 1/6] dt-bindings: mailbox: allow mbox-cells to be equal to 0

On Thu, Jul 26, 2018 at 12:23 PM, Oleksij Rempel
[off-list ref] wrote:

From: Dong Aisheng <aisheng.dong@nxp.com>

Mailbox devices may have only one channel which means the mbox-cells
at least 1 does not make sense for this type devices. Let's remove
that limitation to allow the mbox-cells to be equal to 0.

OK

But please realise that you'll have to write more code -- implement
your own of_xlate() callback.
Most developers would prefer to call the only channel as channel
number 0, and use the common of_xlate implementation.

-jassi