Messages in this thread | | | From | "Rafael J. Wysocki" <> | Date | Tue, 2 Aug 2022 13:01:21 +0200 | Subject | Re: [PATCH v1] PM-runtime: Check supplier_preactivated before release supplier |
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On Tue, Aug 2, 2022 at 5:19 AM Peter Wang <peter.wang@mediatek.com> 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?
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