Re: [PATCH v3 0/4] arm64: dts: qcom: Describe the PCIe M.2 Key E connector for Monaco EVK

[Wei Deng]

Hi Konrad,

On Wed, 19 Aug 2026 19:27:31 +0530, Wei Deng wrote:
> Patch 4/4 moves the graph port/endpoint anchors from monaco.dtsi to
> monaco-evk.dts. This ensures of_graph_is_present() only returns true
> for boards that have an M.2 Key E connector present, preventing
> unintended pwrseq probe on boards with soldered wireless chips
> (e.g. qcs8300-ride).

I reached out to Manivannan to ask whether it would be acceptable to
change the M.2 detection in hci_qca.c from of_graph_is_present() to
of_graph_get_remote_endpoint(). His reply [1]:

> This means, the dummy port/endpoint node will always be present even
> when the M.2 connector is not used. I don't see a compelling reason
> to do so.
>
> - Mani

Given that feedback, the DTSI anchor approach (which you originally
suggested and reviewed) cannot proceed without the hci_qca.c detection
change, and that change is not something Mani finds compelling.

I'm therefore planning to drop the DTSI anchor patch in v4 and go with
board-file-only port/endpoint nodes. The series would shrink to 3 patches
and no DTSI anchors would be added.

Could you confirm whether this approach is acceptable before I send v4?

[1] https://lore.kernel.org/all/isbrpaztfrgwfcleujrn4w26cshbi2mgn57tbh5bubvsegn6lc@jh3ab6htvd24/

--
Best Regards,
Wei Deng