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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

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# Copyright 2024 NXP

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/firmware/nxp,imx95-scmi.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: i.MX95 System Control and Management Interface(SCMI) Vendor Protocols Extension

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maintainers:

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  - Peng Fan <peng.fan@nxp.com>

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properties:

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  protocol@80:

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    description:

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      SCMI LMM protocol which is for boot, shutdown, and reset of other logical

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      machines (LM). It is usually used to allow one LM to manage another used

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      as an offload or accelerator engine.

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    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'

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    unevaluatedProperties: false

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    properties:

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      reg:

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        const: 0x80

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  protocol@81:

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    type: object

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    allOf:

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      - $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'

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      - $ref: /schemas/input/input.yaml#

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    additionalProperties: false

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    properties:

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      reg:

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        const: 0x81

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      linux,code:

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        default: 116  # KEY_POWER

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  protocol@82:

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    description:

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      SCMI CPU Protocol which allows an agent to start or stop a CPU. It is

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      used to manage auxiliary CPUs in a LM.

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    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'

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    unevaluatedProperties: false

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    properties:

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      reg:

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        const: 0x82

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  protocol@84:

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    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'

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    unevaluatedProperties: false

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    properties:

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      reg:

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        const: 0x84

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      nxp,ctrl-ids:

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        description:

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          Each entry consists of 2 integers, represents the ctrl id and the value

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        items:

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          items:

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            - description: the ctrl id index

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              enum: [0, 1, 2, 3, 4, 5, 6, 7, 0x8000, 0x8001, 0x8002, 0x8003,

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                     0x8004, 0x8005, 0x8006, 0x8007]

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            - description: the value assigned to the ctrl id

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        minItems: 1

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        maxItems: 16

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        $ref: /schemas/types.yaml#/definitions/uint32-matrix

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additionalProperties: true

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