arm64: dts: qcom: pm8998: Add ADC Thermal Monitor node

Add a node for the ADC Thermal Monitor found in the PM8998 PMIC. This is
used to connect thermal zones with ADC channels.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20211005032531.2251928-4-bjorn.andersson@linaro.org

arch/arm64/boot/dts/qcom/pm8998.dtsi

@@ -84,6 +84,16 @@ adc-chan@6 {
 			};
 		};
 
+		pm8998_adc_tm: adc-tm@3400 {
+			compatible = "qcom,spmi-adc-tm-hc";
+			reg = <0x3400>;
+			interrupts = <0x0 0x34 0x0 IRQ_TYPE_EDGE_RISING>;
+			#thermal-sensor-cells = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		rtc@6000 {
 			compatible = "qcom,pm8941-rtc";
 			reg = <0x6000>, <0x6100>;