linux-kernel - [PATCH 1/2] dt-bindings: zynqmp: add destination mailbox compatible

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Message-ID: <20231005170825.3521669-1-tanmay.shah@amd.com>
Date:   Thu, 5 Oct 2023 10:08:24 -0700
From:   Tanmay Shah <tanmay.shah@....com>
To:     <jassisinghbrar@...il.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <michal.simek@....com>, <shubhrajyoti.datta@....com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Tanmay Shah <tanmay.shah@....com>
Subject: [PATCH 1/2] dt-bindings: zynqmp: add destination mailbox compatible

Current dt-bindings does not contain compatible property
for child mailbox node. Child mailbox nodes are used
to represent destination (remote) IPI agents. The compatible
property for all destination mailboxes must be required.

Signed-off-by: Tanmay Shah <tanmay.shah@....com>
---
 .../bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml           | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml
index aeaddbf574b0..8b15a0532120 100644
--- a/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml
+++ b/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml
@@ -74,6 +74,10 @@ patternProperties:
     type: object  # DT nodes are json objects
     additionalProperties: false
     properties:
+
+      compatible:
+        const: xlnx,zynqmp-ipi-dest-mailbox
+
       xlnx,ipi-id:
         description:
           Remote Xilinx IPI agent ID of which the mailbox is connected to.
@@ -95,6 +99,7 @@ patternProperties:
           - const: remote_response_region
 
     required:
+      - compatible
       - reg
       - reg-names
       - "#mbox-cells"
@@ -124,6 +129,7 @@ examples:
         ranges;
 
         mailbox: mailbox@...905c0 {
+          compatible = "xlnx,zynqmp-ipi-dest-mailbox";
           reg = <0x0 0xff9905c0 0x0 0x20>,
                 <0x0 0xff9905e0 0x0 0x20>,
                 <0x0 0xff990e80 0x0 0x20>,

base-commit: 7d730f1bf6f39ece2d9f3ae682f12e5b593d534d
-- 
2.25.1