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dt-bindings: usb: xhci: Allow "iommus" and "dr_mode" properties

Allow "iommus" property as it's reasonable for any XHCI controller to be
behind an IOMMU. Allow "dr_mode" as an XHCI controller can be part of a
dual-role controller.

In particular, the Marvell Armada 8K XHCI controller uses both of these
properties.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250919223433.2399927-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

authored by

Rob Herring (Arm) and committed by
Greg Kroah-Hartman 978719f9 ed9dd907

+8
+8
Documentation/devicetree/bindings/usb/generic-xhci.yaml
··· 53 53 54 54 dma-coherent: true 55 55 56 + dr_mode: 57 + enum: 58 + - host 59 + - otg 60 + 61 + iommus: 62 + maxItems: 1 63 + 56 64 power-domains: 57 65 maxItems: 1 58 66