[PATCH 24/32] dt-bindings: add DT bindings for usb2-phy grf

[Kishon Vijay Abraham I]

From: Meng Dongyang <daniel.meng@xxxxxxxxxxxxxx>

Adds the device tree bindings description for usb2-phy grf
of RK3328 platform.

Signed-off-by: Meng Dongyang <daniel.meng@xxxxxxxxxxxxxx>
Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
 Documentation/devicetree/bindings/soc/rockchip/grf.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.txt b/Documentation/devicetree/bindings/soc/rockchip/grf.txt
index a0685c209218..13ec0992de0f 100644
--- a/Documentation/devicetree/bindings/soc/rockchip/grf.txt
+++ b/Documentation/devicetree/bindings/soc/rockchip/grf.txt
@@ -8,6 +8,8 @@ From RK3368 SoCs, the GRF is divided into two sections,
 - SGRF, used for general secure system,
 - PMUGRF, used for always on system
 
+On RK3328 SoCs, the GRF adds a section for USB2PHYGRF,
+
 Required Properties:
 
 - compatible: GRF should be one of the following:
@@ -23,6 +25,8 @@ Required Properties:
    - "rockchip,rk3399-pmugrf", "syscon": for rk3399
 - compatible: SGRF should be one of the following
    - "rockchip,rk3288-sgrf", "syscon": for rk3288
+- compatible: USB2PHYGRF should be one of the followings
+   - "rockchip,rk3328-usb2phy-grf", "syscon": for rk3328
 - reg: physical base address of the controller and length of memory mapped
   region.
 
-- 
2.11.0