Messages in this thread | | | Date | Thu, 30 Dec 2021 10:34:47 +0000 | From | Marc Zyngier <> | Subject | Re: [PATCH/RFC] drivers/irqchip: add irq-inverter |
| |
On Wed, 29 Dec 2021 19:52:18 +0000, Nikita Yushchenko <nikita.yoush@cogentembedded.com> wrote: > > Hi > > >>> The right way to do it is to use the existing API by exposing the > >>> inverter (there are existing examples in the tree, using the > >>> hierarchical model)... > > > > A much simpler version can be written in a few minutes, see below... > > Can something like that be used if the parent domain is not > hierarchical (i.e. does not provide alloc(), but provides map() > instead)?
No. This definitely relies on the parent being hierarchical, as that's exactly what it was designed for the first place.
> In particular, gpio-rcar currently provides irq domain that is not > hierarchical. As well as quite a few other gpiochips.
Well, you just found yourself some useful work! ;-)
M.
-- Without deviation from the norm, progress is not possible.
| |