Re: [PATCH v5 0/5] Functional dependencies between devices

[Hanjun Guo]

On 10/28/2016 05:39 PM, Lukas Wunner wrote:
> On Thu, Oct 27, 2016 at 08:19:27PM +0800, Hanjun Guo wrote:
> > I'm trying to using this patch set to solve the functional dependency
> > between devices and irqchip, which are both ACPI platform devices.
> > irqchip needs to be probed before the devices connecting to them,
> > which specifically, it's the mbi-gen support I send out recently:
> >
> > https://lkml.org/lkml/2016/10/25/453
> >
> > But I didn't see an example to do so in this patch set, and seems that
> > some extra code needs to be added for that purpose, could you give me
> > some suggestions for how to do that then I can work on and test against
> > your patch set?
>
> If the consumers can detect that there's a consumer on which they depend,
> you could call device_link_add() from their ->probe hook.
>
> Generally the earliest point in time when device links can be added is
> after device_initialize() has been called for the consumer and device_add()
> has been called for the supplier.  (At least that's my understanding.)

Thank you, currently I'm on travailing and will take a deep look to
see if it works (or adding things on top) on my case.

Thanks
Hanjun