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