linux-kernel - [PATCH] dt-bindings: arm: Add missing APM X-Gene SoC platforms

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Message-ID: <20251022181127.4147542-1-robh@kernel.org>
Date: Wed, 22 Oct 2025 13:11:27 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Khuong Dinh <khuong@...amperecomputing.com>
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: arm: Add missing APM X-Gene SoC platforms

APM X-Gene SoCs have been in use for some time, but the root compatibles
have not been documented. Add them.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
 .../devicetree/bindings/arm/apm.yaml          | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/apm.yaml

diff --git a/Documentation/devicetree/bindings/arm/apm.yaml b/Documentation/devicetree/bindings/arm/apm.yaml
new file mode 100644
index 000000000000..ea0d362cea3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/apm.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/apm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene SoC Platforms
+
+maintainers:
+  - Khuong Dinh <khuong@...amperecomputing.com>
+
+properties:
+  $nodename:
+    const: "/"
+  compatible:
+    oneOf:
+      - description: Boards with X-Gene1 Soc
+        items:
+          - const: apm,mustang
+          - const: apm,xgene-storm
+
+      - description: Boards with X-Gene2 SoC
+        items:
+          - const: apm,merlin
+          - const: apm,xgene-shadowcat
+
+additionalProperties: true
+...
-- 
2.51.0