1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/interrupt-controller/msi-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marc Zyngier <maz@kernel.org>
13 An MSI controller signals interrupts to a CPU when a write is made
14 to an MMIO address by some master. An MSI controller may feature a
20 The number of cells in an msi-specifier, required if not zero.
22 Typically this will encode information related to sideband data,
23 and will not encode doorbells or payloads as these can be
24 configured dynamically.
26 The meaning of the msi-specifier is defined by the device tree
27 binding of the specific MSI controller.
32 Identifies the node as an MSI controller.
33 $ref: /schemas/types.yaml#/definitions/flag
37 A list of <phandle intspec span> tuples, where "phandle" is the
38 parent interrupt controller, "intspec" is the starting/base
39 interrupt specifier and "span" is the size of the
40 range. Multiple ranges can be provided.
41 $ref: /schemas/types.yaml#/definitions/phandle-array
44 "#msi-cells": [ msi-controller ]
46 additionalProperties: true