Re: [PATCH v1] PM: sleep: core: Synchronize runtime PM status of parents and children

Rafael J. Wysocki
2025-02-08T17:43:13Z

On Sat, Feb 8, 2025 at 5:42 PM Johan Hovold <johan@kernel.org> wrote:
>
> On Sat, Feb 08, 2025 at 01:10:19PM +0100, Rafael J. Wysocki wrote:
> > On Fri, Feb 7, 2025 at 7:14 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
>
> > > > > > > On Fri, Feb 07, 2025 at 02:50:29PM +0100, Johan Hovold wrote:
>
> > > > > > > Ok, so the driver data is never set and runtime PM is never enabled for
> > > > > > > this simple bus device, which uses pm_runtime_force_suspend() for system
> > > > > > > sleep.
>
> > For now, the power.set_active propagation can be restricted to the
> > parent of the device with DPM_FLAG_SMART_SUSPEND set that needs to be
> > resumed and that will just be sufficient ATM, so attached is a patch
> > doing this.
>
> I can confirm that this fixes the simple-pm-bus regression (without
> reintroducing the pci warning) in case you want to get this to Linus
> for rc2:
>
> Tested-by: Johan Hovold <johan+linaro@kernel.org>

-rc2 may be a bit too close, and I think I should add a check for
ignore_children to it, but yeah.

I'll send a full patch shortly, thanks!