linux-kernel - [PATCH v5 2/4] dt-bindings: interrupt-controller: msi: Add msi-ranges property

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Date:   Tue, 21 Sep 2021 20:34:13 +0200
From:   Mark Kettenis <kettenis@...nbsd.org>
To:     devicetree@...r.kernel.org
Cc:     maz@...nel.org, robin.murphy@....com, sven@...npeter.dev,
        alyssa@...enzweig.io, Mark Kettenis <kettenis@...nbsd.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Hector Martin <marcan@...can.st>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Nicolas Saenz Julienne <nsaenz@...nel.org>,
        Jim Quinlan <jim2101024@...il.com>,
        Daire McNamara <daire.mcnamara@...rochip.com>,
        Saenz Julienne <nsaenzjulienne@...e.de>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-pci@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org
Subject: [PATCH v5 2/4] dt-bindings: interrupt-controller: msi: Add msi-ranges property

Update the MSI controller binding to add an msi-ranges property
that specifies how MSIs map onto regular interrupts on some other
interrupt controller.

Acked-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Mark Kettenis <kettenis@...nbsd.org>
---
 .../bindings/interrupt-controller/msi-controller.yaml     | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml b/Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml
index 58d898d5b943..449d6067ec88 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml
@@ -32,6 +32,14 @@ properties:
       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 ]
 
-- 
2.33.0