| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) | |
| %YAML 1.2 | |
| --- | |
| $id: "http://devicetree.org/schemas/soc/qcom/qcom,spm.yaml#" | |
| $schema: "http://devicetree.org/meta-schemas/core.yaml#" | |
| title: Qualcomm Subsystem Power Manager binding | |
| maintainers: | |
| - Andy Gross <agross@kernel.org> | |
| - Bjorn Andersson <bjorn.andersson@linaro.org> | |
| description: | | |
| This binding describes the Qualcomm Subsystem Power Manager, used to control | |
| the peripheral logic surrounding the application cores in Qualcomm platforms. | |
| properties: | |
| compatible: | |
| items: | |
| - enum: | |
| - 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,msm8226-saw2-v2.1-cpu | |
| - qcom,msm8974-saw2-v2.1-cpu | |
| - qcom,apq8084-saw2-v2.1-cpu | |
| - qcom,apq8064-saw2-v1.1-cpu | |
| - const: qcom,saw2 | |
| reg: | |
| description: Base address and size of the SPM register region | |
| maxItems: 1 | |
| 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>; | |
| }; | |
| ... |