From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F450526AA3; Mon, 31 Aug 2026 15:07:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788188856; cv=none; b=G2makwZVlgyaHnPf3kijh0f1iYuKBLJf8fZM7JTCZv6hEQYnRBiJpq86nUlsP8rMoLeMUPCNy140sG5rtwzGhl7FvAsGmZANobTc/nm4O4wutOcpd4TSA8egwKO6iogZAQTwCCdZw9QfuuVeDRMO1W2Vg4CG61DP2jSlxi/hqoQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788188856; c=relaxed/simple; bh=uwvNsBwgRDntXi3bApmujIjPXdQCFaA9ifIQl/RS26M=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bn7iGJ6OCEC8vXxqQyyRK391NaGmzj0+bd1yBKsHjGMaFQhfaa9gkj7zjr3r1uf0TS2pbqF0rlQk6y4d+qpHAat69AlvlSSTZu9baYfQesxajZ5YkkNHGgaUgN2AsiZzrlBPoIAF8aFu1VyKTyksvPa8Yx1mY9kv/mi4KPlfp7E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FXn8afgZ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FXn8afgZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AAE921F000E9; Mon, 31 Aug 2026 15:07:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788188854; bh=X6L7MXqbHZ2LlW+rZJSNup6Lx2yEH0h06HSnoCAWvZY=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=FXn8afgZXofTEy+wnwBgknOyG/E2aYr3Y0oUDpaqxQncpC9LdQQWi8bi/s/SINdZ6 Ck2jrm4egCkiV0npGmWKPuRQZ5IL/+kurIP3Y2Ud4IOFUrcAndDPrSpn93CjLnfveo ExrUu55LWxm/22oKh0zoVDSzKUJs/qRHxguDOg8lylm49BDRTwdcsllvmdh8Feg2y7 J7Ip1lhtYf4C/0tJXkdGXYhKXJgyzbjS2K7az2zA5S/uMIiwaIfvlu61nfmPzMbfkU rWNB6hLrWWkZwkHLolJPToWTU5+vh4QK+AtxxqRyJJgHS+PriqXdgNRYNb1oxwZysJ +j4dLf8NJvT/Q== Date: Mon, 31 Aug 2026 10:07:31 -0500 From: Bjorn Andersson To: Abel Vesa Cc: Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sibi Sankar , Abel Vesa , Rajendra Nayak , Marc Zyngier , Aleksandrs Vinarskis , Konstantin Shabanov , Srinivas Kandagatla , Georg Gottleuber , Ettore Chimenti , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio , Konrad Dybcio Subject: Re: [PATCH 0/9] arm64: dts: qcom: hamoa: Mark the EC reset gpio as reserved on all boards Message-ID: References: <20260831-dts-qcom-hamoa-reserve-ec-reset-gpio-v1-0-5b202de8c74f@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 (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 >