Re: [PATCH v3] PCI: pciehp: Fix hotplug on Catlow Lake with unreliable PME status

[Mika Westerberg]

Hi,

On Thu, Sep 24, 2026 at 11:46:04AM -0700, Kuppuswamy Sathyanarayanan wrote:
> Hi Bjorn/Mika,
> 
> On 9/11/2026 10:01 AM, Kuppuswamy Sathyanarayanan wrote:
> > Hi Mika, Bjorn, Lukas, Rafael,
> > 
> 
> Gentle ping on my reply below.
> 
> Bjorn, could you let me know which of the three directions you would like
> me to take for v5?
> 
> Mika, could you take a look at the acpi_pci_bridge_d3() findings and let
> me know if they match your understanding?

I have already forgotten what this is about ;-) Maybe some refresher would
help here.

If I understand right the root port has _PR3() but no _S0W so
acpi_pci_bridge_d3() returns false for it? Then pci_bridge_d3_possible()
returns false as well and the root port stays in D0? And that should make
the hotplug PME work just fine but you are sayng that's not the case on
Catlow Lake?