[PATCH 3/5] dt-bindings: riscv: Add Milk-V Duo board compatibles

[Jisheng Zhang]

Document the compatible strings for the Milk-V Duo board[1] which uses
the SOPHGO CV1800B SoC[2].

Link: https://milkv.io/duo [1]
Link: https://en.sophgo.com/product/introduce/cv180xB.html [2]
Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/riscv/sophgo.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/sophgo.yaml b/Documentation/devicetree/bindings/riscv/sophgo.yaml
index 4e8fd3c6a6ff..6db241c9d00c 100644
--- a/Documentation/devicetree/bindings/riscv/sophgo.yaml
+++ b/Documentation/devicetree/bindings/riscv/sophgo.yaml
@@ -18,6 +18,10 @@ properties:
     const: '/'
   compatible:
     oneOf:
+      - items:
+          - enum:
+              - milkv,duo
+          - const: sophgo,cv1800b
       - items:
           - enum:
               - milkv,pioneer
-- 
2.40.1