Hi Ulf,

On 23/05/2025 16:39, Ulf Hansson wrote:
> Changes in v2:
> 	- Well, quite a lot as I discovered various problems when doing
> 	additional testing of corner-case. I suggest re-review from scratch,
> 	even if I decided to keep some reviewed-by tags.
> 	- Added patches to allow some drivers that needs to align or opt-out
> 	from the new common behaviour in genpd.
> 
> If a PM domain (genpd) is powered-on during boot, there is probably a good
> reason for it. Therefore it's known to be a bad idea to allow such genpd to be
> powered-off before all of its consumer devices have been probed. This series
> intends to fix this problem.
> 
> We have been discussing these issues at LKML and at various Linux-conferences
> in the past. I have therefore tried to include the people I can recall being
> involved, but I may have forgotten some (my apologies), feel free to loop them
> in.
> 
> I have tested this with QEMU with a bunch of local test-drivers and DT nodes.
> Let me know if you want me to share this code too.
> 
> Please help review and test!

I tested this Renesas white-hawk board, and it hangs at boot. With
earlycon, I captured with/without boot logs, attached.

The hang case doesn't look very healthy with all these: "kobject:
'(null)' ((____ptrval____)): is not initialized, yet kobject_get() is
being called."

 Tomi