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arm64: dts: apple: Add built-in keyboard support for M4 Macbook Pro - #567

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AsahiLinux:bits/000-devicetreefrom
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arm64: dts: apple: Add built-in keyboard support for M4 Macbook Pro#567
Ryan1202 wants to merge 192 commits into
AsahiLinux:bits/000-devicetreefrom
Ryan1202:bits-000-devicetree

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Add device tree support required for the built-in keyboard on the M4 MacBook Pro (J604), including SMC, MTP, DockChannel and DART.

I wrote it based on the t8122 device tree. But unlike t8122, t8132 uses stream ID 0 instead of 1. I guess it's related to the sid field in /arm-io/dart-mtp in ADT.

The device tree changes were only tested as part of the asahi branch on an M4 MacBook Pro (J604).

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