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87 lines
2.3 KiB
87 lines
2.3 KiB
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: "http://devicetree.org/schemas/soc/qcom/qcom,smd-rpm.yaml#" |
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$schema: "http://devicetree.org/meta-schemas/core.yaml#" |
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title: Qualcomm Resource Power Manager (RPM) over SMD |
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description: | |
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This driver is used to interface with the Resource Power Manager (RPM) found |
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in various Qualcomm platforms. The RPM allows each component in the system |
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to vote for state of the system resources, such as clocks, regulators and bus |
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frequencies. |
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The SMD information for the RPM edge should be filled out. See qcom,smd.txt |
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for the required edge properties. All SMD related properties will reside |
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within the RPM node itself. |
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The RPM exposes resources to its subnodes. The rpm_requests node must be |
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present and this subnode may contain children that designate regulator |
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resources. |
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Refer to Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.yaml |
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for information on the regulator subnodes that can exist under the |
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rpm_requests. |
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maintainers: |
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- Kathiravan T <[email protected]> |
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properties: |
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compatible: |
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enum: |
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- qcom,rpm-apq8084 |
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- qcom,rpm-ipq6018 |
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- qcom,rpm-msm8916 |
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- qcom,rpm-msm8974 |
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- qcom,rpm-msm8976 |
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- qcom,rpm-msm8996 |
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- qcom,rpm-msm8998 |
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- qcom,rpm-sdm660 |
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- qcom,rpm-qcs404 |
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qcom,smd-channels: |
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$ref: /schemas/types.yaml#/definitions/string-array |
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description: Channel name used for the RPM communication |
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items: |
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- const: rpm_requests |
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if: |
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properties: |
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compatible: |
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contains: |
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enum: |
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- qcom,rpm-apq8084 |
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- qcom,rpm-msm8916 |
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- qcom,rpm-msm8974 |
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then: |
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required: |
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- qcom,smd-channels |
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required: |
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- compatible |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/arm-gic.h> |
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#include <dt-bindings/interrupt-controller/irq.h> |
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smd { |
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compatible = "qcom,smd"; |
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rpm { |
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interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>; |
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qcom,ipc = <&apcs 8 0>; |
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qcom,smd-edge = <15>; |
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rpm_requests { |
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compatible = "qcom,rpm-msm8974"; |
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qcom,smd-channels = "rpm_requests"; |
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/* Regulator nodes to follow */ |
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}; |
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}; |
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}; |
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...
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