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 7title: Apple SoC PMGR Power States 8 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, 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 30properties: 31 compatible: 32 items: 33 - enum: 34 - apple,t8103-pmgr-pwrstate 35 - apple,t8112-pmgr-pwrstate 36 - apple,t6000-pmgr-pwrstate 37 - const: apple,pmgr-pwrstate 38 39 reg: 40 maxItems: 1 41 42 "#power-domain-cells": 43 const: 0 44 45 "#reset-cells": 46 const: 0 47 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: 1 53 maxItems: 8 # Arbitrary, should be enough 54 55 label: 56 description: 57 Specifies the name of the SoC domain being controlled. This is used to 58 name the power/reset domains. 59 60 apple,always-on: 61 description: 62 Forces this power domain to always be powered up. 63 type: boolean 64 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/uint32 70 minimum: 0 71 maximum: 15 72 73required: 74 - compatible 75 - reg 76 - "#power-domain-cells" 77 - "#reset-cells" 78 - label 79 80additionalProperties: false 81