From: Janne Grunau Date: Thu, 28 Aug 2025 14:01:26 +0000 (+0200) Subject: dt-bindings: iommu: dart: Add apple,t6020-dart compatible X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=874c90221e261b7a778f6beacd3d5f7e9a701a64;p=users%2Fjedix%2Flinux-maple.git dt-bindings: iommu: dart: Add apple,t6020-dart compatible t6020-dart is compatible to t8110-dart and annotated as such in Apple's device tree. Add its per-SoC compatible in case t6020 specific handling becomes necessary. The dart instances on M2 Pro/Max/Ultra based SoCs differ in one aspect from the M2 based ones. They indicate an IAS of 42 requiring implementing support for a fouth page table level in the dart driver and its io-pgtable [1]. [1]: https://lore.kernel.org/asahi/20250821-apple-dart-4levels-v2-0-e39af79daa37@jannau.net/ Reviewed-by: Neal Gompa Acked-by: Rob Herring (Arm) Signed-off-by: Janne Grunau --- diff --git a/Documentation/devicetree/bindings/iommu/apple,dart.yaml b/Documentation/devicetree/bindings/iommu/apple,dart.yaml index 7adb1de455a5..47ec7fa52c3a 100644 --- a/Documentation/devicetree/bindings/iommu/apple,dart.yaml +++ b/Documentation/devicetree/bindings/iommu/apple,dart.yaml @@ -22,11 +22,15 @@ description: |+ properties: compatible: - enum: - - apple,t8103-dart - - apple,t8103-usb4-dart - - apple,t8110-dart - - apple,t6000-dart + oneOf: + - enum: + - apple,t8103-dart + - apple,t8103-usb4-dart + - apple,t8110-dart + - apple,t6000-dart + - items: + - const: apple,t6020-dart + - const: apple,t8110-dart reg: maxItems: 1