[PATCH v0 1/2] dt-bindings: add doc for Firefly ROC-RK3399-PC-PLUS

[djw at t-chip.com.cn]

From: Levin Du <djw at t-chip.com.cn>

Add devicetree binding documentation for the Firefly ROC-RK3399-PC-PLUS.

Signed-off-by: Levin Du <djw at t-chip.com.cn>
---

 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 6546b015fc62..c7b2f5f852d5 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -122,7 +122,12 @@ properties:
               - firefly,roc-rk3399-pc-mezzanine
           - const: rockchip,rk3399
 
+      - description: Firefly ROC-RK3399-PC-PLUS
+        items:
+          - enum:
+              - firefly,roc-rk3399-pc-plus
+          - const: rockchip,rk3399
+
       - description: FriendlyElec NanoPi R2S
         items:
           - const: friendlyarm,nanopi-r2s
--
2.23.0.37.g745f6812895b