dts: msm8996: import PMIC dtsi files

Import PM8994 and PMI8994 DTSI files in preparation for switching
MSM8996 boards to upstream DTS.

Taken from kernel tag v6.7

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/arch/arm/dts/pm8994.dtsi b/arch/arm/dts/pm8994.dtsi
new file mode 100644
index 0000000..d44a95c
--- /dev/null
+++ b/arch/arm/dts/pm8994.dtsi
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <dt-bindings/iio/qcom,spmi-vadc.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/spmi/spmi.h>
+
+/ {
+	thermal-zones {
+		pm8994-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+
+			thermal-sensors = <&pm8994_temp>;
+
+			trips {
+				pm8994_alert0: pm8994-alert0 {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+				pm8994_crit: pm8994-crit {
+					temperature = <125000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+};
+
+&spmi_bus {
+
+	pmic@0 {
+		compatible = "qcom,pm8994", "qcom,spmi-pmic";
+		reg = <0x0 SPMI_USID>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		rtc@6000 {
+			compatible = "qcom,pm8941-rtc";
+			reg = <0x6000>, <0x6100>;
+			reg-names = "rtc", "alarm";
+			interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
+		};
+
+		pm8994_pon: pon@800 {
+			compatible = "qcom,pm8916-pon";
+			reg = <0x800>;
+			mode-bootloader = <0x2>;
+			mode-recovery = <0x1>;
+
+			pwrkey {
+				compatible = "qcom,pm8941-pwrkey";
+				interrupts = <0x0 0x8 0 IRQ_TYPE_EDGE_BOTH>;
+				debounce = <15625>;
+				bias-pull-up;
+				linux,code = <KEY_POWER>;
+			};
+
+			pm8994_resin: resin {
+				compatible = "qcom,pm8941-resin";
+				interrupts = <0x0 0x8 1 IRQ_TYPE_EDGE_BOTH>;
+				debounce = <15625>;
+				bias-pull-up;
+				status = "disabled";
+			};
+		};
+
+		pm8994_temp: temp-alarm@2400 {
+			compatible = "qcom,spmi-temp-alarm";
+			reg = <0x2400>;
+			interrupts = <0x0 0x24 0x0 IRQ_TYPE_EDGE_RISING>;
+			io-channels = <&pm8994_vadc VADC_DIE_TEMP>;
+			io-channel-names = "thermal";
+			#thermal-sensor-cells = <0>;
+		};
+
+		pm8994_vadc: adc@3100 {
+			compatible = "qcom,spmi-vadc";
+			reg = <0x3100>;
+			interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#io-channel-cells = <1>;
+
+			channel@7 {
+				reg = <VADC_VSYS>;
+				qcom,pre-scaling = <1 3>;
+				label = "vph_pwr";
+			};
+			channel@8 {
+				reg = <VADC_DIE_TEMP>;
+				label = "die_temp";
+			};
+			channel@9 {
+				reg = <VADC_REF_625MV>;
+				label = "ref_625mv";
+			};
+			channel@a {
+				reg = <VADC_REF_1250MV>;
+				label = "ref_1250mv";
+			};
+			channel@e {
+				reg = <VADC_GND_REF>;
+			};
+			channel@f {
+				reg = <VADC_VDD_VADC>;
+			};
+		};
+
+		pm8994_gpios: gpio@c000 {
+			compatible = "qcom,pm8994-gpio", "qcom,spmi-gpio";
+			reg = <0xc000>;
+			gpio-controller;
+			gpio-ranges = <&pm8994_gpios 0 0 22>;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+
+		pm8994_mpps: mpps@a000 {
+			compatible = "qcom,pm8994-mpp", "qcom,spmi-mpp";
+			reg = <0xa000>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&pm8994_mpps 0 0 8>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
+	pmic@1 {
+		compatible = "qcom,pm8994", "qcom,spmi-pmic";
+		reg = <0x1 SPMI_USID>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pm8994_lpg: pwm {
+			compatible = "qcom,pm8994-lpg";
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#pwm-cells = <2>;
+
+			status = "disabled";
+		};
+
+		pm8994_spmi_regulators: regulators {
+			compatible = "qcom,pm8994-regulators";
+		};
+	};
+};