From: Bjorn Andersson <andersson@kernel.org>
To: Abel Vesa <abel.vesa@oss.qualcomm.com>
Cc: Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Sibi Sankar <sibi.sankar@oss.qualcomm.com>,
Abel Vesa <abelvesa@kernel.org>,
Rajendra Nayak <quic_rjendra@quicinc.com>,
Marc Zyngier <maz@kernel.org>,
Aleksandrs Vinarskis <alex.vinarskis@gmail.com>,
Konstantin Shabanov <mail@etehtsea.me>,
Srinivas Kandagatla <srini@kernel.org>,
Georg Gottleuber <ggo@tuxedocomputers.com>,
Ettore Chimenti <ettore.chimenti@linaro.org>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
Konrad Dybcio <quic_kdybcio@quicinc.com>
Subject: Re: [PATCH 0/9] arm64: dts: qcom: hamoa: Mark the EC reset gpio as reserved on all boards
Date: Mon, 31 Aug 2026 10:07:31 -0500 [thread overview]
Message-ID: <apWYHB50MPvQFX-h@baldur> (raw)
In-Reply-To: <20260831-dts-qcom-hamoa-reserve-ec-reset-gpio-v1-0-5b202de8c74f@oss.qualcomm.com>
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@oss.qualcomm.com>
> ---
> 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@oss.qualcomm.com>
>
next prev parent reply other threads:[~2026-08-31 15:07 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-31 9:54 Abel Vesa
2026-08-31 9:54 ` [PATCH 1/9] arm64: dts: qcom: x1-crd: Mark the EC reset gpio as reserved Abel Vesa
2026-08-31 9:54 ` [PATCH 2/9] arm64: dts: qcom: x1e001de-devkit: " Abel Vesa
2026-08-31 9:54 ` [PATCH 3/9] arm64: dts: qcom: x1e78100-t14s: " Abel Vesa
2026-08-31 9:54 ` [PATCH 4/9] arm64: dts: qcom: x1e80100-dell-xps13-9345: " Abel Vesa
2026-08-31 12:00 ` Aleksandrs Vinarskis
2026-08-31 13:44 ` Abel Vesa
2026-08-31 9:54 ` [PATCH 5/9] arm64: dts: qcom: honor-magicbook-art-14: " Abel Vesa
2026-08-31 9:54 ` [PATCH 6/9] arm64: dts: qcom: x1e80100-yoga-slim7x: " Abel Vesa
2026-08-31 9:54 ` [PATCH 7/9] arm64: dts: qcom: medion-sprchrgd-14-s1: " Abel Vesa
2026-08-31 9:54 ` [PATCH 8/9] arm64: dts: qcom: microsoft-romulus: " Abel Vesa
2026-08-31 9:54 ` [PATCH 9/9] arm64: dts: qcom: x1e80100-qcp: " Abel Vesa
2026-08-31 10:12 ` [PATCH 0/9] arm64: dts: qcom: hamoa: Mark the EC reset gpio as reserved on all boards Abel Vesa
2026-08-31 15:04 ` Bjorn Andersson
2026-08-31 15:40 ` Abel Vesa
2026-08-31 15:07 ` Bjorn Andersson [this message]
2026-08-31 15:34 ` Abel Vesa
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