1# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/soc/ti/sci-pm-domain.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: TI-SCI generic power domain node bindings 8 9maintainers: 10 - Nishanth Menon <nm@ti.com> 11 12allOf: 13 - $ref: /schemas/power/power-domain.yaml# 14 15description: | 16 Some TI SoCs contain a system controller (like the Power Management Micro 17 Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling 18 the state of the various hardware modules present on the SoC. Communication 19 between the host processor running an OS and the system controller happens 20 through a protocol called TI System Control Interface (TI-SCI protocol). 21 22 This PM domain node represents the global PM domain managed by the TI-SCI 23 controller. Since this relies on the TI SCI protocol to communicate with 24 the TI-SCI controller, it must be a child of the TI-SCI controller node. 25 26properties: 27 compatible: 28 const: ti,sci-pm-domain 29 30 "#power-domain-cells": 31 enum: [1, 2] 32 description: 33 The two cells represent values that the TI-SCI controller defines. 34 35 The first cell should contain the device ID. 36 37 The second cell, if cell-value is 2, should be one of the following 38 TI_SCI_PD_EXCLUSIVE - Allows the device to be exclusively controlled 39 or 40 TI_SCI_PD_SHARED - Allows the device to be shared by multiple hosts. 41 Please refer to dt-bindings/soc/ti,sci_pm_domain.h for the definitions. 42 43 Please see http://processors.wiki.ti.com/index.php/TISCI for 44 protocol documentation for the values to be used for different devices. 45 46additionalProperties: false 47 48examples: 49 - | 50 k2g_pds: power-controller { 51 compatible = "ti,sci-pm-domain"; 52 #power-domain-cells = <1>; 53 }; 54 55 - | 56 k3_pds: power-controller { 57 compatible = "ti,sci-pm-domain"; 58 #power-domain-cells = <2>; 59 }; 60