arm64: dts: qcom: sm8450-hdk: define DIE_TEMP channels

Declare the DIE_TEMP channels provided by PMICs. Use them to provide
temperature reading for the spmi-temp-alarm thermal zones.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230707123027.1510723-8-dmitry.baryshkov@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sm8450-hdk.dts

@@ -6,6 +6,10 @@
 /dts-v1/;
 
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h>
+#include <dt-bindings/iio/qcom,spmi-adc7-pm8350b.h>
+#include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h>
+#include <dt-bindings/iio/qcom,spmi-adc7-pmr735a.h>
 #include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
 #include "sm8450.dtsi"
 #include "pm8350.dtsi"
@@ -581,6 +585,45 @@ &pcie1_phy {
 	vdda-pll-supply = <&vreg_l6b_1p2>;
 };
 
+&pm8350_temp_alarm {
+	io-channels = <&pmk8350_vadc PM8350_ADC7_DIE_TEMP(1)>;
+	io-channel-names = "thermal";
+};
+
+&pm8350b_temp_alarm {
+	io-channels = <&pmk8350_vadc PM8350B_ADC7_DIE_TEMP>;
+	io-channel-names = "thermal";
+};
+
+&pmr735a_temp_alarm {
+	io-channels = <&pmk8350_vadc PMR735A_ADC7_DIE_TEMP>;
+	io-channel-names = "thermal";
+};
+
+&pmk8350_vadc {
+	status = "okay";
+
+	channel@3 {
+		reg = <PMK8350_ADC7_DIE_TEMP>;
+		label = "pmk8350_die_temp";
+	};
+
+	channel@103 {
+		reg = <PM8350_ADC7_DIE_TEMP(1)>;
+		label = "pm8350_die_temp";
+	};
+
+	channel@303 {
+		reg = <PM8350B_ADC7_DIE_TEMP>;
+		label = "pm8350b_die_temp";
+	};
+
+	channel@403 {
+		reg = <PMR735A_ADC7_DIE_TEMP>;
+		label = "pmr735a_die_temp";
+	};
+};
+
 &remoteproc_adsp {
 	status = "okay";
 	firmware-name = "qcom/sm8450/adsp.mbn";