On Mon, Jul 12, 2021 at 04:01:05PM +0300, Andy Shevchenko wrote:

> The software nodes shouldn't appear on its own in the generic code.
> When we use software nodes API in it, it means that we have tried
> other providers _explicitly_ and haven't found what we are looking for
> and hence we have to check if software nodes are providing the same.
> For example, here it's done that way:
> https://elixir.bootlin.com/linux/v5.14-rc1/source/kernel/irq/irqdomain.c#L178.

> In all other cases it shouldn't be called explicitly.

But why?  I'm not seeing the advantage over providing platform data
based on DMI quirks here, it seems like a bunch of work for no reason.