Re: [PATCH 0/9] arm64: dts: qcom: hamoa: Mark the EC reset gpio as reserved on all boards

[Bjorn Andersson]

On Mon, Aug 31, 2026 at 12:54:40PM +0300, Abel Vesa wrote:
> GPIO 65 from TLMM is used by the embedded controller as its reset line on
> these boards. Reserve it to prevent Linux from requesting or reconfiguring it.
> 
> I was only able to confirm that this GPIO is actually connected to the
> EC reset on the CRD, QCP, xps13 and t14s. But it seems like it is
> recurring them shared between all Hamoa based devices, so I reserved it
> on all.

Such leaps of faith comes down to risk vs reward; the risk seems
reasonable, but your commit message just states a fact not a problem -
so there's no documented reward...

Regards,
Bjorn

> 
> Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
> ---
> Abel Vesa (9):
>       arm64: dts: qcom: x1-crd: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: x1e001de-devkit: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: x1e78100-t14s: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: x1e80100-dell-xps13-9345: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: honor-magicbook-art-14: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: x1e80100-yoga-slim7x: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: medion-sprchrgd-14-s1: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: microsoft-romulus: Mark the EC reset gpio as reserved
>       arm64: dts: qcom: x1e80100-qcp: Mark the EC reset gpio as reserved
> 
>  arch/arm64/boot/dts/qcom/x1-crd.dtsi                         | 1 +
>  arch/arm64/boot/dts/qcom/x1e001de-devkit.dts                 | 3 ++-
>  arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi  | 1 +
>  arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts        | 1 +
>  arch/arm64/boot/dts/qcom/x1e80100-honor-magicbook-art-14.dts | 3 ++-
>  arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts     | 1 +
>  arch/arm64/boot/dts/qcom/x1e80100-medion-sprchrgd-14-s1.dts  | 1 +
>  arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi     | 1 +
>  arch/arm64/boot/dts/qcom/x1e80100-qcp.dts                    | 1 +
>  9 files changed, 11 insertions(+), 2 deletions(-)
> ---
> base-commit: e30626823a406725ce29bc75cb8ec467d3e1e326
> change-id: 20260831-dts-qcom-hamoa-reserve-ec-reset-gpio-0bf57fbd24e7
> 
> Best regards,
> --  
> Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
>