81 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/power/apple,pmgr-pwrstate.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Apple SoC PMGR Power States8 9maintainers:10 - Hector Martin <marcan@marcan.st>11 12allOf:13 - $ref: power-domain.yaml#14 15description: |16 Apple SoCs include PMGR blocks responsible for power management,17 which can control various clocks, resets, power states, and18 performance features. This binding describes the device power19 state registers, which control power states and resets.20 21 Each instance of a power controller within the PMGR syscon node22 represents a generic power domain provider, as documented in23 Documentation/devicetree/bindings/power/power-domain.yaml.24 The provider controls a single SoC block. The power hierarchy is25 represented via power-domains relationships between these nodes.26 27 See Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml28 for the top-level PMGR node documentation.29 30properties:31 compatible:32 items:33 - enum:34 - apple,t8103-pmgr-pwrstate35 - apple,t8112-pmgr-pwrstate36 - apple,t6000-pmgr-pwrstate37 - const: apple,pmgr-pwrstate38 39 reg:40 maxItems: 141 42 "#power-domain-cells":43 const: 044 45 "#reset-cells":46 const: 047 48 power-domains:49 description:50 Reference to parent power domains. A domain may have multiple parents,51 and all will be powered up when it is powered.52 minItems: 153 maxItems: 8 # Arbitrary, should be enough54 55 label:56 description:57 Specifies the name of the SoC domain being controlled. This is used to58 name the power/reset domains.59 60 apple,always-on:61 description:62 Forces this power domain to always be powered up.63 type: boolean64 65 apple,min-state:66 description:67 Specifies the minimum power state for auto-PM.68 0 = power gated, 4 = clock gated, 15 = on.69 $ref: /schemas/types.yaml#/definitions/uint3270 minimum: 071 maximum: 1572 73required:74 - compatible75 - reg76 - "#power-domain-cells"77 - "#reset-cells"78 - label79 80additionalProperties: false81