dt-bindings: Add doc for FriendlyARM NanoPi R2S

Add devicetree binding documentation for the FriendlyARM NanoPi R2S.

Signed-off-by: David Bauer <mail@david-bauer.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200920154528.88185-1-mail@david-bauer.net
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 251c3ca22e1b22d7898bac90f071a907a4d2242c..65b4cc2c63f7c1e5fbf20ce34b20f9dc15f264e2 100644 (file)
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -104,6 +104,11 @@ properties:
               - firefly,roc-rk3399-pc-mezzanine
           - const: rockchip,rk3399
 
+      - description: FriendlyElec NanoPi R2S
+        items:
+          - const: friendlyarm,nanopi-r2s
+          - const: rockchip,rk3328
+
       - description: FriendlyElec NanoPi4 series boards
         items:
           - enum: