162306a36Sopenharmony_ci# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 262306a36Sopenharmony_ci%YAML 1.2 362306a36Sopenharmony_ci--- 462306a36Sopenharmony_ci$id: http://devicetree.org/schemas/power/apple,pmgr-pwrstate.yaml# 562306a36Sopenharmony_ci$schema: http://devicetree.org/meta-schemas/core.yaml# 662306a36Sopenharmony_ci 762306a36Sopenharmony_cititle: Apple SoC PMGR Power States 862306a36Sopenharmony_ci 962306a36Sopenharmony_cimaintainers: 1062306a36Sopenharmony_ci - Hector Martin <marcan@marcan.st> 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ciallOf: 1362306a36Sopenharmony_ci - $ref: power-domain.yaml# 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_cidescription: | 1662306a36Sopenharmony_ci Apple SoCs include PMGR blocks responsible for power management, 1762306a36Sopenharmony_ci which can control various clocks, resets, power states, and 1862306a36Sopenharmony_ci performance features. This binding describes the device power 1962306a36Sopenharmony_ci state registers, which control power states and resets. 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_ci Each instance of a power controller within the PMGR syscon node 2262306a36Sopenharmony_ci represents a generic power domain provider, as documented in 2362306a36Sopenharmony_ci Documentation/devicetree/bindings/power/power-domain.yaml. 2462306a36Sopenharmony_ci The provider controls a single SoC block. The power hierarchy is 2562306a36Sopenharmony_ci represented via power-domains relationships between these nodes. 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci See Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml 2862306a36Sopenharmony_ci for the top-level PMGR node documentation. 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ciproperties: 3162306a36Sopenharmony_ci compatible: 3262306a36Sopenharmony_ci items: 3362306a36Sopenharmony_ci - enum: 3462306a36Sopenharmony_ci - apple,t8103-pmgr-pwrstate 3562306a36Sopenharmony_ci - apple,t8112-pmgr-pwrstate 3662306a36Sopenharmony_ci - apple,t6000-pmgr-pwrstate 3762306a36Sopenharmony_ci - const: apple,pmgr-pwrstate 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci reg: 4062306a36Sopenharmony_ci maxItems: 1 4162306a36Sopenharmony_ci 4262306a36Sopenharmony_ci "#power-domain-cells": 4362306a36Sopenharmony_ci const: 0 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_ci "#reset-cells": 4662306a36Sopenharmony_ci const: 0 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_ci power-domains: 4962306a36Sopenharmony_ci description: 5062306a36Sopenharmony_ci Reference to parent power domains. A domain may have multiple parents, 5162306a36Sopenharmony_ci and all will be powered up when it is powered. 5262306a36Sopenharmony_ci minItems: 1 5362306a36Sopenharmony_ci maxItems: 8 # Arbitrary, should be enough 5462306a36Sopenharmony_ci 5562306a36Sopenharmony_ci label: 5662306a36Sopenharmony_ci description: 5762306a36Sopenharmony_ci Specifies the name of the SoC domain being controlled. This is used to 5862306a36Sopenharmony_ci name the power/reset domains. 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci apple,always-on: 6162306a36Sopenharmony_ci description: 6262306a36Sopenharmony_ci Forces this power domain to always be powered up. 6362306a36Sopenharmony_ci type: boolean 6462306a36Sopenharmony_ci 6562306a36Sopenharmony_ci apple,min-state: 6662306a36Sopenharmony_ci description: 6762306a36Sopenharmony_ci Specifies the minimum power state for auto-PM. 6862306a36Sopenharmony_ci 0 = power gated, 4 = clock gated, 15 = on. 6962306a36Sopenharmony_ci $ref: /schemas/types.yaml#/definitions/uint32 7062306a36Sopenharmony_ci minimum: 0 7162306a36Sopenharmony_ci maximum: 15 7262306a36Sopenharmony_ci 7362306a36Sopenharmony_cirequired: 7462306a36Sopenharmony_ci - compatible 7562306a36Sopenharmony_ci - reg 7662306a36Sopenharmony_ci - "#power-domain-cells" 7762306a36Sopenharmony_ci - "#reset-cells" 7862306a36Sopenharmony_ci - label 7962306a36Sopenharmony_ci 8062306a36Sopenharmony_ciadditionalProperties: false 81