[PATCH v2 1/2] dt-bindings: interrupt-controller: renesas,rzv2h-icu: Document RZ/V2N SoC

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Document the Interrupt Control Unit (ICU) used on the Renesas RZ/V2N SoC.
Although the ICU closely matches the design found on the RZ/V2H(P) family,
it differs in its register layout, particularly in the reduced set of
ECCRAM related registers. These variations require a distinct compatible
string so that software can correctly match and handle the RZ/V2N
implementation.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
v1->v2:
- Dropped using RZ/V2H compatible as a fallback.
---
 .../bindings/interrupt-controller/renesas,rzv2h-icu.yaml         | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,rzv2h-icu.yaml b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzv2h-icu.yaml
index 3f99c8645767..cb244b8f5e1c 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,rzv2h-icu.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzv2h-icu.yaml
@@ -22,6 +22,7 @@ properties:
   compatible:
     enum:
       - renesas,r9a09g047-icu # RZ/G3E
+      - renesas,r9a09g056-icu # RZ/V2N
       - renesas,r9a09g057-icu # RZ/V2H(P)
 
   '#interrupt-cells':
-- 
2.52.0