[PATCH V4 1/7] dt-bindings: usb: hd3ss3220 device tree binding document

[Biju Das <biju.das@xxxxxxxxxxxxxx>]

Add device tree binding document for TI HD3SS3220 Type-C DRP port
controller driver.

Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
V3-->V4
  * No Change.
V2-->V3
  * Added Rob's Reviewed by tag.
V1-->V2
  * Added connector node.
  * updated the example with connector node.
---
 .../devicetree/bindings/usb/ti,hd3ss3220.txt       | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt

diff --git a/Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt b/Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt
new file mode 100644
index 0000000..7f41400
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,hd3ss3220.txt
@@ -0,0 +1,37 @@
+TI HD3SS3220 TypeC DRP Port Controller.
+
+Required properties:
+ - compatible: Must be "ti,hd3ss3220".
+ - reg: I2C slave address, must be 0x47 or 0x67 based on ADDR pin.
+ - interrupts: <a b> where a is the interrupt number and b represents an
+   encoding of the sense and level information for the interrupt.
+
+Required sub-node:
+ - connector : The "usb-c-connector" attached to the hd3ss3220 chip. The
+   bindings of the connector node are specified in:
+
+	Documentation/devicetree/bindings/connector/usb-connector.txt
+
+Example:
+hd3ss3220@47 {
+	compatible = "ti,hd3ss3220";
+	reg = <0x47>;
+	interrupt-parent = <&gpio6>;
+	interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+	usb_con: connector {
+		compatible = "usb-c-connector";
+		label = "USB-C";
+		data-role = "dual";
+	};
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		hd3ss3220_ep: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&usb3peri_role_switch>;
+		};
+	};
+};
-- 
2.7.4