dt-bindings: interrupt-controller: realtek,rtl-intc: Allow 2 interrupt cells

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The Realtek Otto SoC interrupt controller supports hardware interrupt
routing to multiple parent CPU interrupt lines. To utilize this
multi-domain support, peripheral devices need a way to explicitly
specify their desired parent interrupt line in the device tree.

Update the "#interrupt-cells" property to accept either 1 or 2 cells.

 1 cell:  Specifies the hardware interrupt index, implicitly routing it
     	  to the first available parent (maintaining backward compatibility).

 2 cells: The first cell specifies the hardware interrupt index and
          the second cell specifies the targeted parent interrupt index.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260605211646.2101652-2-markus.stockhausen@gmx.de

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Markus Stockhausen 2026-06-05 23:16:40 +02:00 • committed by Thomas Gleixner

parent dc59e4fea9

commit 9d9faab6f5

1 changed files with 3 additions and 2 deletions

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Documentation/devicetree/bindings/interrupt-controller/realtek,rtl-intc.yaml

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