[PATCH] ARM: dts: helios4: add Wake-on-LAN gpio key

Rosen Penev rosenp at gmail.com
Tue Sep 1 11:37:03 PDT 2026


On Mon, Aug 31, 2026 at 8:08 PM Andrew Lunn <andrew at lunn.ch> wrote:
>
> On Mon, Aug 31, 2026 at 07:53:11PM -0700, Rosen Penev wrote:
> > Add a gpio-keys node exposing Wake-On-LAN on its gpio0 18 input,
> > allowing the board to be woken from suspend.
>
> Could you explain this some more. Why a GPIO key? The MAC needs to
> know if the PHY can wake the system, in order to offload the WoL to
> the PHY.
This was an out of tree solution to get WOL working on this board.

After some back and forth with an LLM, the conclusion reached was that
this is the simplest way to get it working, not upstream ready. And as
sashiko points out, it has problems. I'll respin.
>
>     Andrew



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