arm64: dts: qcom: msm8992: Add PSCI support.

This SoC's firmware does not fully support the PSCI
spec, but it's good enough to bring the cores up.

Signed-off-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>

Author: konradybcio

arch/arm64/boot/dts/qcom/msm8992.dtsi

@@ -135,6 +135,11 @@
 		interrupts = <GIC_PPI 7 (GIC_CPU_MASK_SIMPLE(4)| IRQ_TYPE_LEVEL_HIGH)>;
 	};
 
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "hvc";
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;