[PATCH v2 2/3] dt-bindings: arm: rockchip: Add Graperain G3568 series

[Coia Prant]

Document Graperain G3568 v2
 which is a development board based on RK3568 SoC.

This series also have an SBC series with the suffix "box".

This board is development board series, not SBC series.

Link: https://www.graperain.cn/RK3568/RK3568-Development/ (China)
Link: https://www.graperain.com/ARM-Embedded-RK3568-Development-Board/ (Global)
Link: https://image.chukouplus.com/upload/C_153/product_file/20211022/6daddec9e400458816dd4c57ba807fc3.pdf

Signed-off-by: Coia Prant <coiaprant@xxxxxxxxx>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 1a9dde18626d0..9eb2f66ba3856 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -684,6 +684,12 @@ properties:
           - const: google,veyron
           - const: rockchip,rk3288
 
+      - description: Graperain G3568 series board
+        items:
+          - enum:
+              - graperain,g3568-v2
+          - const: rockchip,rk3568
+
       - description: H96 Max V58 TV Box
         items:
           - const: haochuangyi,h96-max-v58
-- 
2.47.3