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arm64: dts: apple: t8103: Add nodes for integrated USB Type-C ports

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Add device nodes and connections to support USB 3.x on the SoC's
integrated USB-C ports of M1-based devices.
Each Type-C port has an Apple Type-C PHY for USB 2.0, USB 3.x,
USB4/Thunderbolt, and DisplayPort, a Synopsys Designware USB 3.x
controller, two DART iommu instances and a CD321x USB PD controller.
The iMac variant with four USB-C ports has two SoC integrated USB-C
ports and two additional USB-C ports driven by an AsMedia PCIe USB
controller. The latter ports are not covered by this change.
The port labels use Apple's established naming scheme for the ports.

Signed-off-by: Hector Martin <marcan@marcan.st>
Co-developed-by: Sven Peter <sven@kernel.org>
Signed-off-by: Janne Grunau <j@jannau.net>
Tested-by: Sven Peter <sven@kernel.org> # M1 mac mini and macbook air
Reviewed-by: Sven Peter <sven@kernel.org>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Link: https://patch.msgid.link/20260109-apple-dt-usb-c-atc-dwc3-v1-1-ce0e92c1a016@jannau.net
Signed-off-by: Sven Peter <sven@kernel.org>
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Hector Martin 2026-01-09 15:07:04 +01:00 • committed by Sven Peter
commit 2b737cc5be
7 changed files with 299 additions and 0 deletions
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