arm64: dts: qcom: Add pm7250b PMIC

PM7250B is a PMIC primarily used for charging and fuel gauge but also
has some of the standard functionality like temp-alarm, adc, etc.

Add the .dtsi with some of the functionality added.
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220902111055.106814-2-luca.weiss@fairphone.com

arch/arm64/boot/dts/qcom/pm7250b.dtsi

+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (C) 2022 Luca Weiss <luca.weiss@fairphone.com>
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/spmi/spmi.h>
+
+/ {
+	thermal-zones {
+		pm7250b-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&pm7250b_temp>;
+
+			trips {
+				trip0 {
+					temperature = <95000>;
+					hysteresis = <0>;
+					type = "passive";
+				};
+
+				trip1 {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "hot";
+				};
+
+				trip2 {
+					temperature = <145000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+		};
+	};
+};
+
+&spmi_bus {
+	pmic@2 {
+		compatible = "qcom,pm7250b", "qcom,spmi-pmic";
+		reg = <0x2 SPMI_USID>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pm7250b_temp: temp-alarm@2400 {
+			compatible = "qcom,spmi-temp-alarm";
+			reg = <0x2400>;
+			interrupts = <0x2 0x24 0x0 IRQ_TYPE_EDGE_BOTH>;
+			io-channels = <&pm7250b_adc ADC5_DIE_TEMP>;
+			io-channel-names = "thermal";
+			#thermal-sensor-cells = <0>;
+		};
+
+		pm7250b_adc: adc@3100 {
+			compatible = "qcom,spmi-adc5";
+			reg = <0x3100>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#io-channel-cells = <1>;
+			interrupts = <0x2 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
+
+			adc-chan@0 {
+				reg = <ADC5_REF_GND>;
+				qcom,pre-scaling = <1 1>;
+				label = "ref_gnd";
+			};
+
+			adc-chan@1 {
+				reg = <ADC5_1P25VREF>;
+				qcom,pre-scaling = <1 1>;
+				label = "vref_1p25";
+			};
+
+			adc-chan@2 {
+				reg = <ADC5_DIE_TEMP>;
+				qcom,pre-scaling = <1 1>;
+				label = "die_temp";
+			};
+
+			adc-chan@7 {
+				reg = <ADC5_USB_IN_I>;
+				qcom,pre-scaling = <1 1>;
+				label = "usb_in_i_uv";
+			};
+
+			adc-chan@8 {
+				reg = <ADC5_USB_IN_V_16>;
+				qcom,pre-scaling = <1 16>;
+				label = "usb_in_v_div_16";
+			};
+
+			adc-chan@9 {
+				reg = <ADC5_CHG_TEMP>;
+				qcom,pre-scaling = <1 1>;
+				label = "chg_temp";
+			};
+
+			adc-chan@e {
+				reg = <ADC5_AMUX_THM2>;
+				qcom,hw-settle-time = <200>;
+				qcom,pre-scaling = <1 1>;
+				label = "smb1390_therm";
+			};
+
+			adc-chan@1e {
+				reg = <ADC5_MID_CHG_DIV6>;
+				qcom,pre-scaling = <1 6>;
+				label = "chg_mid";
+			};
+
+			adc-chan@83 {
+				reg = <ADC5_VPH_PWR>;
+				qcom,pre-scaling = <1 3>;
+				label = "vph_pwr";
+			};
+
+			adc-chan@84 {
+				reg = <ADC5_VBAT_SNS>;
+				qcom,pre-scaling = <1 3>;
+				label = "vbat_sns";
+			};
+
+			adc-chan@99 {
+				reg = <ADC5_SBUx>;
+				qcom,pre-scaling = <1 3>;
+				label = "chg_sbux";
+			};
+		};
+
+		pm7250b_adc_tm: adc-tm@3500 {
+			compatible = "qcom,spmi-adc-tm5";
+			reg = <0x3500>;
+			interrupts = <0x2 0x35 0x0 IRQ_TYPE_EDGE_RISING>;
+			#thermal-sensor-cells = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+	};
+
+	pmic@3 {
+		compatible = "qcom,pm7250b", "qcom,spmi-pmic";
+		reg = <0x3 SPMI_USID>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+};