apple,pmgr-pwrstate.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/power/apple,pmgr-pwrstate.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Apple SoC PMGR Power States
    8 
    9 maintainers:
   10   - Hector Martin <marcan@marcan.st>
   11 
   12 allOf:
   13   - $ref: power-domain.yaml#
   14 
   15 description: |
   16   Apple SoCs include PMGR blocks responsible for power management,
   17   which can control various clocks, resets, power states, and
   18   performance features. This binding describes the device power
   19   state registers, which control power states and resets.
   20 
   21   Each instance of a power controller within the PMGR syscon node
   22   represents a generic power domain provider, as documented in
   23   Documentation/devicetree/bindings/power/power-domain.yaml.
   24   The provider controls a single SoC block. The power hierarchy is
   25   represented via power-domains relationships between these nodes.
   26 
   27   See Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
   28   for the top-level PMGR node documentation.
   29 
   30 properties:
   31   compatible:
   32     items:
   33       - enum:
   34           - apple,t8103-pmgr-pwrstate
   35           - apple,t6000-pmgr-pwrstate
   36       - const: apple,pmgr-pwrstate
   37 
   38   reg:
   39     maxItems: 1
   40 
   41   "#power-domain-cells":
   42     const: 0
   43 
   44   "#reset-cells":
   45     const: 0
   46 
   47   power-domains:
   48     description:
   49       Reference to parent power domains. A domain may have multiple parents,
   50       and all will be powered up when it is powered.
   51     minItems: 1
   52     maxItems: 8 # Arbitrary, should be enough
   53 
   54   label:
   55     description:
   56       Specifies the name of the SoC domain being controlled. This is used to
   57       name the power/reset domains.
   58 
   59   apple,always-on:
   60     description:
   61       Forces this power domain to always be powered up.
   62     type: boolean
   63 
   64   apple,min-state:
   65     description:
   66       Specifies the minimum power state for auto-PM.
   67       0 = power gated, 4 = clock gated, 15 = on.
   68     $ref: /schemas/types.yaml#/definitions/uint32
   69     minimum: 0
   70     maximum: 15
   71 
   72 required:
   73   - compatible
   74   - reg
   75   - "#power-domain-cells"
   76   - "#reset-cells"
   77   - label
   78 
   79 additionalProperties: false

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/power/apple,pmgr-pwrstate.yaml

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sys/contrib/device-tree/Bindings/power/apple,pmgr-pwrstate.yaml