linux-kernel - Re: [PATCH v3 2/3] arm64: dts: qcom: hamoa: Add the APSS watchdog

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Message-ID: <doohnt42hdq6oxw527b23ycnbb42l4srbkhuejhvnhnspu4vde@qoqqalagso5x>
Date: Wed, 24 Dec 2025 14:23:36 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Abel Vesa <abel.vesa@....qualcomm.com>
Cc: Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Stephan Gerhold <stephan.gerhold@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-watchdog@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/3] arm64: dts: qcom: hamoa: Add the APSS watchdog

On Wed, Dec 24, 2025 at 12:45:21PM +0200, Abel Vesa wrote:
> The watchdog support in EL1 is SBSA compliant, handled by Gunyah
> hypervisor, but in EL2. the watchdog is an instance of the APSS WDT HW
> block, same as older platforms. So describe the APSS WDT node and mark
> it as reserved, as it will only be enabled in EL2 overlay.
> 
> Signed-off-by: Abel Vesa <abel.vesa@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/hamoa.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>


-- 
With best wishes
Dmitry