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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/qcom/qcom,saw2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Subsystem Power Manager / SPM AVS Wrapper 2 (SAW2)
+
+maintainers:
+ - Andy Gross <agross@kernel.org>
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+ The Qualcomm Subsystem Power Manager is used to control the peripheral logic
+ surrounding the application cores in Qualcomm platforms.
+
+ The SAW2 is a wrapper around the Subsystem Power Manager (SPM) and the
+ Adaptive Voltage Scaling (AVS) hardware. The SPM is a programmable
+ power-controller that transitions a piece of hardware (like a processor or
+ subsystem) into and out of low power modes via a direct connection to
+ the PMIC. It can also be wired up to interact with other processors in the
+ system, notifying them when a low power state is entered or exited.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,ipq4019-saw2-cpu
+ - qcom,ipq4019-saw2-l2
+ - qcom,ipq8064-saw2-cpu
+ - qcom,sdm660-gold-saw2-v4.1-l2
+ - qcom,sdm660-silver-saw2-v4.1-l2
+ - qcom,msm8998-gold-saw2-v4.1-l2
+ - qcom,msm8998-silver-saw2-v4.1-l2
+ - qcom,msm8909-saw2-v3.0-cpu
+ - qcom,msm8916-saw2-v3.0-cpu
+ - qcom,msm8939-saw2-v3.0-cpu
+ - qcom,msm8226-saw2-v2.1-cpu
+ - qcom,msm8226-saw2-v2.1-l2
+ - qcom,msm8960-saw2-cpu
+ - qcom,msm8974-saw2-v2.1-cpu
+ - qcom,msm8974-saw2-v2.1-l2
+ - qcom,msm8976-gold-saw2-v2.3-l2
+ - qcom,msm8976-silver-saw2-v2.3-l2
+ - qcom,apq8084-saw2-v2.1-cpu
+ - qcom,apq8084-saw2-v2.1-l2
+ - qcom,apq8064-saw2-v1.1-cpu
+ - const: qcom,saw2
+
+ reg:
+ items:
+ - description: Base address and size of the SPM register region
+ - description: Base address and size of the alias register region
+ minItems: 1
+
+ regulator:
+ $ref: /schemas/regulator/regulator.yaml#
+ description: Indicates that this SPM device acts as a regulator device
+ device for the core (CPU or Cache) the SPM is attached to.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+
+ /* Example 1: SoC using SAW2 and kpss-acc-v2 CPUIdle */
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "qcom,kryo";
+ device_type = "cpu";
+ enable-method = "qcom,kpss-acc-v2";
+ qcom,saw = <&saw0>;
+ reg = <0x0>;
+ operating-points-v2 = <&cpu_opp_table>;
+ };
+ };
+
+ saw0: power-manager@f9089000 {
+ compatible = "qcom,msm8974-saw2-v2.1-cpu", "qcom,saw2";
+ reg = <0xf9089000 0x1000>;
+ };
+
+ - |
+
+ /*
+ * Example 2: New-gen multi cluster SoC using SAW only for L2;
+ * This does not require any cpuidle driver, nor any cpu phandle.
+ */
+ power-manager@17812000 {
+ compatible = "qcom,msm8998-gold-saw2-v4.1-l2", "qcom,saw2";
+ reg = <0x17812000 0x1000>;
+ };
+
+ power-manager@17912000 {
+ compatible = "qcom,msm8998-silver-saw2-v4.1-l2", "qcom,saw2";
+ reg = <0x17912000 0x1000>;
+ };
+
+ - |
+ /*
+ * Example 3: SAW2 with the bundled regulator definition.
+ */
+ power-manager@2089000 {
+ compatible = "qcom,apq8064-saw2-v1.1-cpu", "qcom,saw2";
+ reg = <0x02089000 0x1000>, <0x02009000 0x1000>;
+
+ regulator {
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <1300000>;
+ };
+ };
+...