# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) # Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ %YAML 1.2 --- $id: http://devicetree.org/schemas/mfd/ti,j721e-system-controller.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: TI J721e System Controller Registers R/W Device Tree Bindings description: | This represents the Control Module registers (CTRL_MMR0) on the SoC. System controller node represents a register region containing a set of miscellaneous registers. The registers are not cohesive enough to represent as any specific type of device. The typical use-case is for some other node's driver, or platform-specific code, to acquire a reference to the syscon node (e.g. by phandle, node path, or search using a specific compatible value), interrogate the node (or associated OS driver) to determine the location of the registers, and access the registers directly. maintainers: - Kishon Vijay Abraham I <kishon@ti.com> - Roger Quadros <rogerq@ti.com properties: compatible: items: - enum: - ti,j721e-system-controller - const: syscon - const: simple-mfd reg: maxItems: 1 "#address-cells": const: 1 "#size-cells": const: 1 ranges: true patternProperties: # Optional children "^serdes-ln-ctrl@[0-9a-f]+$": type: object description: | This is the SERDES lane control mux. It should follow the bindings specified in Documentation/devicetree/bindings/mux/reg-mux.txt required: - compatible - reg - "#address-cells" - "#size-cells" - ranges additionalProperties: false examples: - | scm_conf: scm-conf@100000 { compatible = "ti,j721e-system-controller", "syscon", "simple-mfd"; reg = <0x00100000 0x1c000>; #address-cells = <1>; #size-cells = <1>; ranges; serdes_ln_ctrl: serdes-ln-ctrl@4080 { compatible = "mmio-mux"; reg = <0x00004080 0x50>; }; }; ...