# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)%YAML 1.2---$id: http://devicetree.org/schemas/interrupt-controller/msi-controller.yaml#$schema: http://devicetree.org/meta-schemas/core.yaml# title: MSI controller maintainers:  - Marc Zyngier <maz@kernel.org> description: |  An MSI controller signals interrupts to a CPU when a write is made  to an MMIO address by some master. An MSI controller may feature a  number of doorbells. properties:  "#msi-cells":    description: |      The number of cells in an msi-specifier, required if not zero.       Typically this will encode information related to sideband data,      and will not encode doorbells or payloads as these can be      configured dynamically.       The meaning of the msi-specifier is defined by the device tree      binding of the specific MSI controller.    enum: [0, 1]   msi-controller:    description:      Identifies the node as an MSI controller.    $ref: /schemas/types.yaml#/definitions/flag   msi-ranges:    description:      A list of <phandle intspec span> tuples, where "phandle" is the      parent interrupt controller, "intspec" is the starting/base      interrupt specifier and "span" is the size of the      range. Multiple ranges can be provided.    $ref: /schemas/types.yaml#/definitions/phandle-array dependencies:  "#msi-cells": [ msi-controller ] additionalProperties: true