[PATCH 3/4] arm64: dts: qcom: Add PMIC thermal support for Shikra CQ2390M SoM platform

[Jishnu Prakash]

Add ADC channels for system thermistors, used for thermal mitigation.
Add ADC thermal bridge nodes for pa/quiet/msm thermistors. Enable temperature
alarm nodes for PM4125 and PM8005. Add thermal zones for temp-alarm devices
and system thermistors exposed as thermal bridge nodes.

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-cqm-som.dtsi | 184 +++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi b/arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi
index dc3861489f64..c6c09d773abe 100644
--- a/arch/arm64/boot/dts/qcom/shikra-cqm-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/shikra-cqm-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"
@@ -27,9 +28,184 @@ key-volume-up {
 			linux,can-disable;
 		};
 	};
+
+	pm4125_msm_therm_bridge: pm4125-msm-therm-bridge {
+		compatible = "generic-adc-thermal";
+		io-channels = <&pm4125_adc ADC5_AMUX_THM3_100K_PU>;
+		io-channel-names = "sensor-channel";
+		#thermal-sensor-cells = <0>;
+	};
+
+	pm4125_pa_therm_bridge: pm4125-pa-therm-bridge {
+		compatible = "generic-adc-thermal";
+		io-channels = <&pm4125_adc ADC5_AMUX_THM1_100K_PU>;
+		io-channel-names = "sensor-channel";
+		#thermal-sensor-cells = <0>;
+	};
+
+	pm4125_quiet_therm_bridge: pm4125-quiet-therm-bridge {
+		compatible = "generic-adc-thermal";
+		io-channels = <&pm4125_adc ADC5_AMUX_THM2_100K_PU>;
+		io-channel-names = "sensor-channel";
+		#thermal-sensor-cells = <0>;
+	};
+
+	thermal-zones {
+		pm4125-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+			thermal-sensors = <&pm4125_tz>;
+
+			trips {
+				pm4125_trip0: trip0 {
+					temperature = <105000>;
+					hysteresis = <0>;
+					type = "passive";
+				};
+
+				pm4125_trip1: trip1 {
+					temperature = <125000>;
+					hysteresis = <0>;
+					type = "hot";
+				};
+
+				pm4125_trip2: trip2 {
+					temperature = <155000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+		};
+
+		pm8005-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+			thermal-sensors = <&pm8005_tz>;
+
+			trips {
+				pm8005_trip0: trip0 {
+					temperature = <105000>;
+					hysteresis = <0>;
+					type = "passive";
+				};
+
+				pm8005_trip1: trip1 {
+					temperature = <125000>;
+					hysteresis = <0>;
+					type = "passive";
+				};
+
+				pm8005_trip2: trip2 {
+					temperature = <145000>;
+					hysteresis = <0>;
+					type = "passive";
+				};
+			};
+		};
+
+		sys-1-thermal {
+			polling-delay-passive = <2000>;
+			polling-delay = <0>;
+			thermal-sensors = <&pm4125_pa_therm_bridge>;
+
+			trips {
+				active-config0 {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+		};
+
+		sys-2-thermal {
+			polling-delay-passive = <2000>;
+			polling-delay = <0>;
+			thermal-sensors = <&pm4125_quiet_therm_bridge>;
+
+			trips {
+				active-config0 {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+		};
+
+		sys-3-thermal {
+			polling-delay-passive = <2000>;
+			polling-delay = <0>;
+			thermal-sensors = <&pm4125_msm_therm_bridge>;
+
+			trips {
+				active-config0 {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+		};
+	};
+};
+
+&pm4125_adc {
+	pinctrl-0 = <&pm4125_adc_gpio5_default>, <&pm4125_adc_gpio6_default>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	channel@4d {
+		reg = <ADC5_AMUX_THM1_100K_PU>;
+		label = "pa_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@4f {
+		reg = <ADC5_AMUX_THM3_100K_PU>;
+		label = "msm_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+
+	channel@54 {
+		reg = <ADC5_GPIO3_100K_PU>;
+		label = "chgr_skin";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+
+	channel@55 {
+		reg = <ADC5_GPIO4_100K_PU>;
+		label = "gnss_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
 };
 
 &pm4125_gpios {
+	pm4125_adc_gpio5_default: pm4125-adc-gpio5-state {
+		pins = "gpio5";
+		function = PMIC_GPIO_FUNC_NORMAL;
+		bias-high-impedance;
+	};
+
+	pm4125_adc_gpio6_default: pm4125-adc-gpio6-state {
+		pins = "gpio6";
+		function = PMIC_GPIO_FUNC_NORMAL;
+		bias-high-impedance;
+	};
+
 	vol_up_n: vol-up-n-state {
 		pins = "gpio9";
 		function = PMIC_GPIO_FUNC_NORMAL;
@@ -45,10 +221,18 @@ &pm4125_resin {
 	status = "okay";
 };
 
+&pm4125_tz {
+	status = "okay";
+};
+
 &pm8005_regulators {
 	status = "disabled";
 };
 
+&pm8005_tz {
+	status = "okay";
+};
+
 &rpm_requests {
 	regulators {
 		compatible = "qcom,rpm-pm2250-regulators";

-- 
2.43.0