dt-bindings: soc: rockchip: add rk3568-usb2phy-grf

Add the documentation for the rk3568-usb2phy-grf node, which is separate
from the usb2phy node on this chip.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211215210252.120923-2-pgwipeout@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
index dfebf42..b2ba7be 100644 (file)
--- a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
+++ b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
@@ -15,6 +15,7 @@ properties:
       - items:
           - enum:
               - rockchip,rk3288-sgrf
+              - rockchip,rk3568-usb2phy-grf
               - rockchip,rv1108-usbgrf
           - const: syscon
       - items: