From: Biju Das <biju.das.jz@bp.renesas.com>

Document RSPI IP found on the RZ/G3L SoC. The RSPI IP is compatible with
the RZ/V2H RSPI IP, but has 2 clocks compared to 3 on RZ/V2H.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v3->v4:
 * Added a blank line before the dmas property.
 * Collected tags.
v2->v3:
 * Added ordered DMA names for the dma-names property.
 * Dropped the tag
v1->v2:
 * Collected tag
---
 .../bindings/spi/renesas,rzv2h-rspi.yaml      | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml
index 2c9045fd51de..f40f316943ba 100644
--- a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml
+++ b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml
@@ -13,6 +13,7 @@ properties:
   compatible:
     oneOf:
       - enum:
+          - renesas,r9a08g046-rspi # RZ/G3L
           - renesas,r9a09g057-rspi # RZ/V2H(P)
           - renesas,r9a09g077-rspi # RZ/T2H
       - items:
@@ -90,6 +91,34 @@ required:
 
 allOf:
   - $ref: spi-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - renesas,r9a08g046-rspi
+    then:
+      properties:
+        clocks:
+          maxItems: 2
+
+        clock-names:
+          items:
+            - const: pclk
+            - const: tclk
+
+        dmas:
+          maxItems: 2
+
+        dma-names:
+          items:
+            - const: rx
+            - const: tx
+
+      required:
+        - resets
+        - reset-names
+
   - if:
       properties:
         compatible:
-- 
2.43.0

On Wed, Apr 08, 2026 at 09:54:14AM +0100, Biju wrote:
> From: Biju Das <biju.das.jz@bp.renesas.com>
> 
> Document RSPI IP found on the RZ/G3L SoC. The RSPI IP is compatible with
> the RZ/V2H RSPI IP, but has 2 clocks compared to 3 on RZ/V2H.

Please submit patches using subject lines reflecting the style for the
subsystem, this makes it easier for people to identify relevant patches.
Look at what existing commits in the area you're changing are doing and
make sure your subject lines visually resemble what they're doing.
There's no need to resubmit to fix this alone.