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Date: Thu, 07 Mar 2024 21:25:56 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Johan Hovold <johan+linaro@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 3/4] arm64: dts: qcom: sc8280xp: Add PS_HOLD restart
Killing the platform with a single write and no firmware involvement is
pretty cool, add support for it.
Note that due to restart notifier priority settings, PSCI reset will
be used instead, unless:
a) PSCI is not exposed by the firmware (e.g. because the fw was replaced)
or
b) PSCI restart fails for some reason
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index a3725d917bef..44c8d543eb67 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -4460,6 +4460,11 @@ tsens0: thermal-sensor@...3000 {
#thermal-sensor-cells = <1>;
};
+ restart@...4000 {
+ compatible = "qcom,pshold";
+ reg = <0 0x0c264000 0 0x4>;
+ };
+
tsens1: thermal-sensor@...5000 {
compatible = "qcom,sc8280xp-tsens", "qcom,tsens-v2";
reg = <0 0x0c265000 0 0x1ff>, /* TM */
--
2.40.1
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