[PATCH 1/1] riscv: dts: spacemit: Add 'linux,pci-domain' to PCIe nodes for K1

[Vivian Wang]

On 3/2/26 15:42, Yixun Lan wrote:
> Hi Chukun,
>
> On 15:15 Mon 02 Mar     , Chukun Pan wrote:
>> Hi,
>>
>>> The SpacemiT K1 SoC has 3 PCIe EP controller nodes. Add the
>>> 'linux,pci-domain' property to assign a PCI domain number to
>>> each of the controllers instead of assigning it randomly.
>> Does anyone have any thoughts on this?
>> Without this patch, the PCI domain number is random.
>>
> You describe what's has been done here, but no why?
> Can you add description about why problem with random domain,
> and the motivation of the change behind?
>
> from my understanding of reading DT document, either way seems
> fine..

For example systemd-udevd provides the interface name based on the
segment group / domain number, so if you add an additional PCIe network
card, the name of the network interface will flip between enP0p1s0 and
enP1p1s0, which is a bit inconvenient.

This isn't inherently a problem (these things were never as predictible
as they wanted anyway) but a convenience would still be nice.

Vivian "dramforever" Wang