Re: [PATCH v1] PM-runtime: Check supplier_preactivated before release supplier

[Rafael J. Wysocki]

On Tue, Aug 2, 2022 at 5:19 AM Peter Wang <peter.wang@xxxxxxxxxxxx> wrote:
>
>
> > Hi Rafael,
> >
> > Yes, it is very clear!
> > I miss this important key point that usage_count is always >
> > rpm_active 1.
> > I think this patch could work.
> >
> > Thanks.
> > Peter
> >
> >
> >
> >
> Hi Rafael,
>
> After test with commit ("887371066039011144b4a94af97d9328df6869a2 PM:
> runtime: Fix supplier device management during consumer probe") past weeks,
> The supplier still suspend when consumer is active "after"
> pm_runtime_put_suppliers.
> Do you have any idea about that?

Well, this means that the consumer probe doesn't bump up the
supplier's PM-runtime usage counter as appropriate.

You need to tell me more about what happens during the consumer probe.
Which driver is this?