[PATCH v4 1/4] Documentation: dt-bindings: add dt binding info for Rockchip dwc2

[Kever Yang]

This add necessary dwc2 binding documentation for Rockchip socs:
rk3066, rk3188 and rk3288

Signed-off-by: Kever Yang <kever.yang@xxxxxxxxxxxxxx>
Acked-by: Stephen Warren <swarren@xxxxxxxxxx>
---

Changes in v4: None
Changes in v3: None
Changes in v2:
- Split out dr_mode and rk3288 bindings.
- add compatible "snps,dwc2" bingding info

 Documentation/devicetree/bindings/usb/dwc2.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index 467ddd1..2899679 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -4,6 +4,9 @@ Platform DesignWare HS OTG USB 2.0 controller
 Required properties:
 - compatible : One of:
   - brcm,bcm2835-usb: The DWC2 USB controller instance in the BCM2835 SoC.
+  - rockchip,rk3066-usb: The DWC2 USB controller instance in the rk3066 Soc;
+  - "rockchip,rk3188-usb", "rockchip,rk3066-usb", "snps,dwc2": for rk3188 Soc;
+  - "rockchip,rk3288-usb", "rockchip,rk3066-usb", "snps,dwc2": for rk3288 Soc;
   - snps,dwc2: A generic DWC2 USB controller with default parameters.
 - reg : Should contain 1 register range (address and length)
 - interrupts : Should contain 1 interrupt
-- 
1.9.1

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