linux-kernel - [PATCH] dt-bindings: memory: renesas,rzg3e-xspi: Document RZ/V2H(P) and RZ/V2N support

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Message-ID: <20250624171605.469724-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Tue, 24 Jun 2025 18:16:05 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>
Cc: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH] dt-bindings: memory: renesas,rzg3e-xspi: Document RZ/V2H(P) and RZ/V2N support

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

Document support for the Expanded Serial Peripheral Interface (xSPI)
controller found on the Renesas RZ/V2H(P) (R9A09G057) and RZ/V2N
(R9A09G056) SoCs.

The xSPI hardware block on these SoCs is functionally identical to the
one on the RZ/G3E (R9A09G047) SoC. Therefore, the existing driver can be
reused without modification by using `renesas,r9a09g047-xspi` as a
fallback compatible.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 .../bindings/memory-controllers/renesas,rzg3e-xspi.yaml  | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/renesas,rzg3e-xspi.yaml b/Documentation/devicetree/bindings/memory-controllers/renesas,rzg3e-xspi.yaml
index 2bfe63ec62dc..7a84f5bb7284 100644
--- a/Documentation/devicetree/bindings/memory-controllers/renesas,rzg3e-xspi.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/renesas,rzg3e-xspi.yaml
@@ -23,7 +23,14 @@ allOf:
 
 properties:
   compatible:
-    const: renesas,r9a09g047-xspi  # RZ/G3E
+    oneOf:
+      - const: renesas,r9a09g047-xspi  # RZ/G3E
+
+      - items:
+          - enum:
+              - renesas,r9a09g056-xspi  # RZ/V2N
+              - renesas,r9a09g057-xspi  # RZ/V2H(P)
+          - const: renesas,r9a09g047-xspi
 
   reg:
     items:
-- 
2.49.0