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,msm8916-saw2-v3.0-cpu 26 - qcom,msm8226-saw2-v2.1-cpu 27 - qcom,msm8974-saw2-v2.1-cpu 28 - qcom,apq8084-saw2-v2.1-cpu 29 - qcom,apq8064-saw2-v1.1-cpu 30 - const: qcom,saw2 31 32 reg: 33 description: Base address and size of the SPM register region 34 maxItems: 1 35 36required: 37 - compatible 38 - reg 39 40additionalProperties: false 41 42examples: 43 - | 44 45 /* Example 1: SoC using SAW2 and kpss-acc-v2 CPUIdle */ 46 cpus { 47 #address-cells = <1>; 48 #size-cells = <0>; 49 50 cpu@0 { 51 compatible = "qcom,kryo"; 52 device_type = "cpu"; 53 enable-method = "qcom,kpss-acc-v2"; 54 qcom,saw = <&saw0>; 55 reg = <0x0>; 56 operating-points-v2 = <&cpu_opp_table>; 57 }; 58 }; 59 60 saw0: power-manager@f9089000 { 61 compatible = "qcom,msm8974-saw2-v2.1-cpu", "qcom,saw2"; 62 reg = <0xf9089000 0x1000>; 63 }; 64 65 - | 66 67 /* 68 * Example 2: New-gen multi cluster SoC using SAW only for L2; 69 * This does not require any cpuidle driver, nor any cpu phandle. 70 */ 71 power-manager@17812000 { 72 compatible = "qcom,msm8998-gold-saw2-v4.1-l2", "qcom,saw2"; 73 reg = <0x17812000 0x1000>; 74 }; 75 76 power-manager@17912000 { 77 compatible = "qcom,msm8998-silver-saw2-v4.1-l2", "qcom,saw2"; 78 reg = <0x17912000 0x1000>; 79 }; 80 81... 82