[PATCH] pmdomain: rockchip: mark PD_PIPE as active wakeup on RK3568

[Coia Prant]

Coia Prant <coiaprant at gmail.com> 于2026年10月6日周二 07:27写道：
>
> On September 25, 2026 12:17:51 PM GMT+08:00, Coia Prant <coiaprant at gmail.com> wrote:
> >The PD_PIPE power domain on RK3568 hosts the XPCS, the PCIe
> >controllers and the SATA controllers.  All of them can act as
> >wakeup sources for the system:
> >
> >  - the XPCS for MAC WoL, through the SGMII link
> >  - the PCIe controllers for PME#
> >  - the SATA controllers for hotplug wake
> >
> >The domain is registered with active_wakeup = false, so genpd powers
> >it down during system suspend even when a consumer is on the wakeup
> >path.  That kills the XPCS and the SerDes, which breaks MAC WoL on
> >RK3568 SGMII boards, and it also powers down the PCIe and SATA
> >controllers while their drivers still expect the link to be alive.
> >
> >Mark PD_PIPE as active_wakeup so that genpd honours the wakeup path
> >of its consumers.  Consumers that call device_set_wakeup_path() keep
> >the domain powered; consumers that do not mark themselves as wakeup
> >sources are unaffected and the domain is still powered down when
> >nothing needs it.
> >
> >Several other Rockchip SoCs already mark their PCIe and USB power
> >domains as active wakeup, for example RK3588's pcie and usb domains
> >and RK3576's usb domain.  PD_PIPE hosts the same kind of
> >wakeup-capable controllers on RK3568, so this follows the same
> >pattern.
> >
> >Signed-off-by: Coia Prant <coiaprant at gmail.com>

Hi Ulf,

Gentle ping on this patch. It was sent on Sep 25 and Patchwork shows it
as "Handled Elsewhere", but I can't find it merged in linux-pm,
linux-rockchip, linux-next or mainline, and I haven't received any
review feedback.

Since then, the XPCS driver and DTS that depend on PD_PIPE staying
powered across suspend have been merged and sent upstream:

- XPCS driver in net-next: https://git.kernel.org/netdev/net-next/c/5e91edfb0e45

Could you let me know which tree this should go through, or whether it
was already picked somewhere? If it needs to be routed differently, I'm
happy to resend it.

Thanks,
Coia