1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: "http://devicetree.org/schemas/soc/qcom/qcom,spm.yaml#" 5$schema: "http://devicetree.org/meta-schemas/core.yaml#" 6 7title: Qualcomm Subsystem Power Manager binding 8 9maintainers: 10 - Andy Gross <agross@kernel.org> 11 - Bjorn Andersson <bjorn.andersson@linaro.org> 12 13description: | 14 This binding describes the Qualcomm Subsystem Power Manager, used to control 15 the peripheral logic surrounding the application cores in Qualcomm platforms. 16 17properties: 18 compatible: 19 items: 20 - enum: 21 - qcom,sdm660-gold-saw2-v4.1-l2 22 - qcom,sdm660-silver-saw2-v4.1-l2 23 - qcom,msm8998-gold-saw2-v4.1-l2 24 - qcom,msm8998-silver-saw2-v4.1-l2 25 - qcom,msm8909-saw2-v3.0-cpu 26 - qcom,msm8916-saw2-v3.0-cpu 27 - qcom,msm8226-saw2-v2.1-cpu 28 - qcom,msm8974-saw2-v2.1-cpu 29 - qcom,apq8084-saw2-v2.1-cpu 30 - qcom,apq8064-saw2-v1.1-cpu 31 - const: qcom,saw2 32 33 reg: 34 description: Base address and size of the SPM register region 35 maxItems: 1 36 37required: 38 - compatible 39 - reg 40 41additionalProperties: false 42 43examples: 44 - | 45 46 /* Example 1: SoC using SAW2 and kpss-acc-v2 CPUIdle */ 47 cpus { 48 #address-cells = <1>; 49 #size-cells = <0>; 50 51 cpu@0 { 52 compatible = "qcom,kryo"; 53 device_type = "cpu"; 54 enable-method = "qcom,kpss-acc-v2"; 55 qcom,saw = <&saw0>; 56 reg = <0x0>; 57 operating-points-v2 = <&cpu_opp_table>; 58 }; 59 }; 60 61 saw0: power-manager@f9089000 { 62 compatible = "qcom,msm8974-saw2-v2.1-cpu", "qcom,saw2"; 63 reg = <0xf9089000 0x1000>; 64 }; 65 66 - | 67 68 /* 69 * Example 2: New-gen multi cluster SoC using SAW only for L2; 70 * This does not require any cpuidle driver, nor any cpu phandle. 71 */ 72 power-manager@17812000 { 73 compatible = "qcom,msm8998-gold-saw2-v4.1-l2", "qcom,saw2"; 74 reg = <0x17812000 0x1000>; 75 }; 76 77 power-manager@17912000 { 78 compatible = "qcom,msm8998-silver-saw2-v4.1-l2", "qcom,saw2"; 79 reg = <0x17912000 0x1000>; 80 }; 81 82... 83