arm64: dts: qcom: add pm8450 support

Add PM8450 PMIC device tree include file. It is going to be used by
SM8450-based devices.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220226205035.1826360-8-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/pm8450.dtsi

+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2022, Linaro Limited
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/spmi/spmi.h>
+
+/ {
+	thermal-zones {
+		pm8450-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&pm8450_temp_alarm>;
+
+			trips {
+				trip0 {
+					temperature = <95000>;
+					hysteresis = <0>;
+					type = "passive";
+				};
+
+				trip1 {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "hot";
+				};
+			};
+		};
+	};
+};
+
+
+&spmi_bus {
+	pm8450: pmic@7 {
+		compatible = "qcom,pm8450", "qcom,spmi-pmic";
+		reg = <0x7 SPMI_USID>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pm8450_temp_alarm: temp-alarm@a00 {
+			compatible = "qcom,spmi-temp-alarm";
+			reg = <0xa00>;
+			interrupts = <0x7 0xa 0x0 IRQ_TYPE_EDGE_BOTH>;
+			#thermal-sensor-cells = <0>;
+		};
+
+		pm8450_gpios: gpio@8800 {
+			compatible = "qcom,pm8450-gpio", "qcom,spmi-gpio";
+			reg = <0x8800>;
+			gpio-controller;
+			gpio-ranges = <&pm8450_gpios 0 0 4>;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+};