[PATCH 4/4] arm64: dts: qcom: Add PMIC thermal support for Shikra IQ2390S SoM platform

[Jishnu Prakash]

Add ADC channels for system thermistors, used for thermal mitigation.
Add ADC_TM nodes for pa/quiet/msm thermistors and also thermal zones
for them.

Co-developed-by: Rakesh Kota <rakesh.kota@xxxxxxxxxxxxxxxx>
Signed-off-by: Rakesh Kota <rakesh.kota@xxxxxxxxxxxxxxxx>
Signed-off-by: Jishnu Prakash <jishnu.prakash@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/shikra-iqs-som.dtsi | 113 +++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/shikra-iqs-som.dtsi b/arch/arm64/boot/dts/qcom/shikra-iqs-som.dtsi
index 73945bf42112..9ab0b44b00be 100644
--- a/arch/arm64/boot/dts/qcom/shikra-iqs-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/shikra-iqs-som.dtsi
@@ -4,6 +4,7 @@
  */
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/iio/qcom,spmi-vadc.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 
 #include "shikra.dtsi"
@@ -26,9 +27,121 @@ key-volume-up {
 			linux,can-disable;
 		};
 	};
+
+	thermal-zones {
+		sys-1-thermal {
+			thermal-sensors = <&pm8150_adc_tm 0>;
+
+			trips {
+				active-config0 {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+		};
+
+		sys-2-thermal {
+			thermal-sensors = <&pm8150_adc_tm 1>;
+
+			trips {
+				active-config0 {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+		};
+
+		sys-3-thermal {
+			thermal-sensors = <&pm8150_adc_tm 2>;
+
+			trips {
+				active-config0 {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+		};
+	};
+};
+
+&pm8150_adc {
+	pinctrl-0 = <&pm8150_adc_gpio2_default>, <&pm8150_adc_gpio3_default>;
+	pinctrl-names = "default";
+
+	channel@4d {
+		reg = <ADC5_AMUX_THM1_100K_PU>;
+		label = "msm_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+
+	channel@4e {
+		reg = <ADC5_AMUX_THM2_100K_PU>;
+		label = "quiet_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+
+	channel@52 {
+		reg = <ADC5_GPIO1_100K_PU>;
+		label = "gnss_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+
+	channel@55 {
+		reg = <ADC5_GPIO4_100K_PU>;
+		label = "pa_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+};
+
+&pm8150_adc_tm {
+	status = "okay";
+
+	pa-therm@0 {
+		reg = <0>;
+		io-channels = <&pm8150_adc ADC5_GPIO4_100K_PU>;
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	quiet-therm@1 {
+		reg = <1>;
+		io-channels = <&pm8150_adc ADC5_AMUX_THM2_100K_PU>;
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
+
+	msm-therm@2 {
+		reg = <2>;
+		io-channels = <&pm8150_adc ADC5_AMUX_THM1_100K_PU>;
+		qcom,ratiometric;
+		qcom,hw-settle-time-us = <200>;
+	};
 };
 
 &pm8150_gpios {
+	pm8150_adc_gpio2_default: pm8150-adc-gpio2-state {
+		pins = "gpio2";
+		function = PMIC_GPIO_FUNC_NORMAL;
+		bias-high-impedance;
+	};
+
+	pm8150_adc_gpio3_default: pm8150-adc-gpio3-state {
+		pins = "gpio3";
+		function = PMIC_GPIO_FUNC_NORMAL;
+		bias-high-impedance;
+	};
+
 	vol_up_n: vol-up-n-state {
 		pins = "gpio6";
 		function = PMIC_GPIO_FUNC_NORMAL;

-- 
2.43.0