Re: [PATCH V4 3/5] dt-bindings: gpio: Add bindings for gpio-virtio

[Viresh Kumar]

On 03-08-21, 09:47, Rob Herring wrote:
> n Mon, Aug 2, 2021 at 10:30 PM Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
> >
> > On 02-08-21, 13:40, Rob Herring wrote:
> > > Humm, how does one implement interrupts without a parent interrupt? It
> > > uses the parent virtio,mmio interrupt?
> >
> > Kind of, yeah, but not necessarily.
> >
> > The interrupt information is passed over buffers shared between host and guest.
> > Now the guest may process the buffers when it receives a notification from the
> > host, that will be at downpath of an interrupt for virtio,mmio. Or the guest may
> > poll on the virtqueue and process any buffers as soon as they are made
> > available, no interrupts then.
> 
> Okay, thanks for the explanation.
> 
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

Thanks for reviewing this Rob.

-- 
viresh