linux-kernel - [PATCH 3/4] arm64: dts: apple: Add chassis-type property for Mac Pro

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Message-Id: <20260109-apple-dt-chassis-type-v1-3-c215503734c5@jannau.net>
Date: Fri, 09 Jan 2026 16:25:45 +0100
From: Janne Grunau <j@...nau.net>
To: Sven Peter <sven@...nel.org>, Neal Gompa <neal@...pa.dev>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Janne Grunau <j@...nau.net>
Subject: [PATCH 3/4] arm64: dts: apple: Add chassis-type property for Mac
 Pro

The tower and rack mount Mac Pro variants share the same .dts file and
are identical except for the chassis. There doesn't appear to be a
property in Apple's device tree to distinguish these two devices so use
"server" as chassis type which describes both if one doesn't look too
carefully.

Signed-off-by: Janne Grunau <j@...nau.net>
---
 arch/arm64/boot/dts/apple/t6022-j180d.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t6022-j180d.dts b/arch/arm64/boot/dts/apple/t6022-j180d.dts
index dca6bd167c225aa23e78e1c644bf6c97f42d46b5..55a5e19563894c576dfe1bda9d48c5b69262bc02 100644
--- a/arch/arm64/boot/dts/apple/t6022-j180d.dts
+++ b/arch/arm64/boot/dts/apple/t6022-j180d.dts
@@ -15,6 +15,8 @@
 / {
 	compatible = "apple,j180d", "apple,t6022", "apple,arm-platform";
 	model = "Apple Mac Pro (M2 Ultra, 2023)";
+	chassis-type = "server";
+
 	aliases {
 		nvram = &nvram;
 		serial0 = &serial0;

-- 
2.52.0