[PATCH 1/2] dt-bindings: mailbox: add support for referencing controllers solely by node

[Tudor Ambarus]

Hi, Conor,

On 12/19/24 2:11 PM, Conor Dooley wrote:
>> There are mailbox clients that can discover the mailbox channel ID at
>> run-time. For such cases passing the channel identifier via DT is
>> redundant. Add support for referencing controllers solely by node.
> I don't really get your implementation, why not just allow #mbox-cells = 0?
> That's what's done for things like fixed frequency clocks that only have
> a single output.

Ah, indeed!

instead of:
	of_parse_phandle(dev->of_node, "mbox", 0);
I can do a:
	of_parse_phandle_with_args(dev->of_node, "mboxes",
                                   "#mbox-cells", 0, &of_args)
where #mbox-cells = 0;

Or ... can I pass NULL for cells_name and make the #mbox-cells property
optional and still keeping its requirement of being at least 1?

Thanks!
ta