Re: [RFC PATCH v11 4/5] PCI / PM: Add support for the PCIe WAKE# signal for OF

From: Rafael J. Wysocki
Date: Thu Jan 25 2018 - 11:54:31 EST


On Thu, Jan 25, 2018 at 5:40 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> * Brian Norris <briannorris@xxxxxxxxxxxx> [180125 01:22]:
>> On Fri, Jan 05, 2018 at 02:13:33AM +0100, Rafael J. Wysocki wrote:
>> > The "wakeup-interrupt" property at the bridge level basically has to be defined
>> > as the wakeup interrupt for all devices on the bus under the bridge.
>>
>> The only thing I'm at a loss for is whether this goes in (referring to
>> rk3399-gru.dtsi) &pcie or &pci_rootport. I think some versions of this
>> series have been aiming for the former, and some the latter.
>
> I'd keep the wakeup interrupt property at the rootport level. That way
> it can work with whatever pcie card that might be plugged into that
> slot. That is in case it's just a slot and not hardwired pcie device :)

Do I understand correctly that &pcie is the device and the
&pci_rootport is the port that device is connected to?