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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/qcom/qcom,cpr3.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Core Power Reduction v3/v4/Hardened (CPR3, CPR4, CPRh)
+
+description: |
+ CPR (Core Power Reduction) is a technology to reduce core power on a CPU
+ or other device. Each OPP of a device corresponds to a "corner" that has
+ a range of valid voltages for a particular frequency. While the device is
+ running at a particular frequency, CPR monitors dynamic factors such as
+ temperature, etc. and suggests or, in the CPR-Hardened case performs,
+ adjustments to the voltage to save power and meet silicon characteristic
+ requirements.
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+properties:
+ compatible:
+ oneOf:
+ - description: CPRv3 controller
+ items:
+ - const: qcom,cpr3
+ - description: CPRv4 controller
+ items:
+ - const: qcom,cpr4
+ - description: CPRv4-Hardened controller
+ items:
+ - enum:
+ - qcom,msm8998-cprh
+ - qcom,sdm630-cprh
+ - const: qcom,cprh
+
+ reg:
+ description: Base address and size of the CPR controller(s)
+ minItems: 1
+ maxItems: 2
+
+ interrupts:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: "ref"
+
+ clocks:
+ items:
+ - description: CPR reference clock
+
+ vdd-supply:
+ description: Autonomous Phase Control (APC) or other power supply
+
+ '#power-domain-cells':
+ const: 1
+
+ acc-syscon:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to syscon for writing ACC settings
+
+ nvmem-cells:
+ description: Cells containing the fuse corners and revision data
+ minItems: 10
+ maxItems: 32
+
+ nvmem-cell-names:
+ minItems: 10
+ maxItems: 32
+
+ operating-points-v2: true
+
+required:
+ - compatible
+ - reg
+ - clock-names
+ - clocks
+ - "#power-domain-cells"
+ - nvmem-cells
+ - nvmem-cell-names
+ - operating-points-v2
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8998.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "qcom,kryo280";
+ device_type = "cpu";
+ reg = <0x0 0x0>;
+ operating-points-v2 = <&cpu_gold_opp_table>;
+ power-domains = <&apc_cprh 0>;
+ power-domain-names = "cprh";
+ };
+
+ cpu@100 {
+ compatible = "qcom,kryo280";
+ device_type = "cpu";
+ reg = <0x0 0x0>;
+ operating-points-v2 = <&cpu_silver_opp_table>;
+ power-domains = <&apc_cprh 1>;
+ power-domain-names = "cprh";
+ };
+ };
+
+ cpu_gold_opp_table: opp-table-gold {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-2208000000 {
+ opp-hz = /bits/ 64 <2208000000>;
+ required-opps = <&cprh_opp3>;
+ };
+ opp-1113600000 {
+ opp-hz = /bits/ 64 <1113600000>;
+ required-opps = <&cprh_opp2>;
+ };
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&cprh_opp1>;
+ };
+ };
+
+ cpu_silver_opp_table: opp-table-silver {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp-1843200000 {
+ opp-hz = /bits/ 64 <1843200000>;
+ required-opps = <&cprh_opp3>;
+ };
+ opp-1094400000 {
+ opp-hz = /bits/ 64 <1094400000>;
+ required-opps = <&cprh_opp2>;
+ };
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ required-opps = <&cprh_opp1>;
+ };
+ };
+
+ cprh_opp_table: opp-table-cprh {
+ compatible = "operating-points-v2-qcom-level";
+
+ cprh_opp1: opp1 {
+ opp-level = <1>;
+ qcom,opp-fuse-level = <1>;
+ };
+ cprh_opp2: opp2 {
+ opp-level = <2>;
+ qcom,opp-fuse-level = <2>;
+ };
+ cprh_opp3: opp3 {
+ opp-level = <3>;
+ qcom,opp-fuse-level = <2 3>;
+ };
+ };
+
+ apc_cprh: power-controller@179c8000 {
+ compatible = "qcom,msm8998-cprh", "qcom,cprh";
+ reg = <0x0179c8000 0x4000>, <0x0179c4000 0x4000>;
+ clocks = <&gcc GCC_HMSS_RBCPR_CLK>;
+ clock-names = "ref";
+
+ #power-domain-cells = <1>;
+ operating-points-v2 = <&cprh_opp_table>;
+
+ nvmem-cells = <&cpr_efuse_speedbin>,
+ <&cpr_fuse_revision>,
+ <&cpr_quot0_pwrcl>,
+ <&cpr_quot1_pwrcl>,
+ <&cpr_quot2_pwrcl>,
+ <&cpr_quot3_pwrcl>,
+ <&cpr_quot_offset1_pwrcl>,
+ <&cpr_quot_offset2_pwrcl>,
+ <&cpr_quot_offset3_pwrcl>,
+ <&cpr_init_voltage0_pwrcl>,
+ <&cpr_init_voltage1_pwrcl>,
+ <&cpr_init_voltage2_pwrcl>,
+ <&cpr_init_voltage3_pwrcl>,
+ <&cpr_ro_sel0_pwrcl>,
+ <&cpr_ro_sel1_pwrcl>,
+ <&cpr_ro_sel2_pwrcl>,
+ <&cpr_ro_sel3_pwrcl>,
+ <&cpr_quot0_perfcl>,
+ <&cpr_quot1_perfcl>,
+ <&cpr_quot2_perfcl>,
+ <&cpr_quot3_perfcl>,
+ <&cpr_quot_offset1_perfcl>,
+ <&cpr_quot_offset2_perfcl>,
+ <&cpr_quot_offset3_perfcl>,
+ <&cpr_init_voltage0_perfcl>,
+ <&cpr_init_voltage1_perfcl>,
+ <&cpr_init_voltage2_perfcl>,
+ <&cpr_init_voltage3_perfcl>,
+ <&cpr_ro_sel0_perfcl>,
+ <&cpr_ro_sel1_perfcl>,
+ <&cpr_ro_sel2_perfcl>,
+ <&cpr_ro_sel3_perfcl>;
+
+ nvmem-cell-names = "cpr_speed_bin",
+ "cpr_fuse_revision",
+ "cpr0_quotient1",
+ "cpr0_quotient2",
+ "cpr0_quotient3",
+ "cpr0_quotient4",
+ "cpr0_quotient_offset2",
+ "cpr0_quotient_offset3",
+ "cpr0_quotient_offset4",
+ "cpr0_init_voltage1",
+ "cpr0_init_voltage2",
+ "cpr0_init_voltage3",
+ "cpr0_init_voltage4",
+ "cpr0_ring_osc1",
+ "cpr0_ring_osc2",
+ "cpr0_ring_osc3",
+ "cpr0_ring_osc4",
+ "cpr1_quotient1",
+ "cpr1_quotient2",
+ "cpr1_quotient3",
+ "cpr1_quotient4",
+ "cpr1_quotient_offset2",
+ "cpr1_quotient_offset3",
+ "cpr1_quotient_offset4",
+ "cpr1_init_voltage1",
+ "cpr1_init_voltage2",
+ "cpr1_init_voltage3",
+ "cpr1_init_voltage4",
+ "cpr1_ring_osc1",
+ "cpr1_ring_osc2",
+ "cpr1_ring_osc3",
+ "cpr1_ring_osc4";
+ };
+...