[PATCH 3/4] arm64: dts: qcom: sc8280xp: Add PS_HOLD restart

Konrad Dybcio
2024-03-07T20:26:40Z

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@linaro.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@c263000 {
#thermal-sensor-cells = <1>;
};

+ restart@c264000 {
+ compatible = "qcom,pshold";
+ reg = <0 0x0c264000 0 0x4>;
+ };
+
tsens1: thermal-sensor@c265000 {
compatible = "qcom,sc8280xp-tsens", "qcom,tsens-v2";
reg = <0 0x0c265000 0 0x1ff>, /* TM */

--
2.40.1