1# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/clock/ti,sci-clk.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: TI-SCI clock controller 8 9maintainers: 10 - Nishanth Menon <nm@ti.com> 11 12description: | 13 Some TI SoCs contain a system controller (like the Power Management Micro 14 Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling 15 the state of the various hardware modules present on the SoC. Communication 16 between the host processor running an OS and the system controller happens 17 through a protocol called TI System Control Interface (TI-SCI protocol). 18 19 This clock controller node uses the TI SCI protocol to perform various clock 20 management of various hardware modules (devices) present on the SoC. This 21 node must be a child node of the associated TI-SCI system controller node. 22 23properties: 24 $nodename: 25 pattern: "^clock-controller$" 26 27 compatible: 28 const: ti,k2g-sci-clk 29 30 "#clock-cells": 31 const: 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 should contain the clock ID. 38 39 Please see http://processors.wiki.ti.com/index.php/TISCI for 40 protocol documentation for the values to be used for different devices. 41 42additionalProperties: false 43 44examples: 45 - | 46 k3_clks: clock-controller { 47 compatible = "ti,k2g-sci-clk"; 48 #clock-cells = <2>; 49 }; 50