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-e39af79da...@jannau.net/ Signed-off-by: Janne Grunau <j...@jannau.net> --- Documentation/devicetree/bindings/iommu/apple,dart.yaml | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/iommu/apple,dart.yaml b/Documentation/devicetree/bindings/iommu/apple,dart.yaml index 7adb1de455a5b38dfb6c76303f11c8f95395e0dd..47ec7fa52c3ac6b3e111adf6998685f18f8602dd 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 -- 2.51.0
