Commit 4aec2393 authored by Biju Das's avatar Biju Das Committed by Greg Kroah-Hartman
Browse files

dt-bindings: usb: renesas_usb3: Document usb role switch support 



Update the DT bindings documentation to support usb role switch
for USB Type-C connector using USB role switch class framework.

Signed-off-by: default avatarBiju Das <biju.das@bp.renesas.com>
Reviewed-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1567584941-13690-4-git-send-email-biju.das@bp.renesas.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1c48c759

Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt

+23 −0
Original line number Diff line number Diff line
@@ -22,6 +22,12 @@ Required properties: 
Optional properties:

  - phys: phandle + phy specifier pair

  - phy-names: must be "usb"

  - usb-role-switch: support role switch. see usb/generic.txt



Sub-nodes:

- any connector to the data bus of this controller should be modelled using the

  OF graph bindings specified in bindings/graph.txt, if the "usb-role-switch"

  property is used.



Example of R-Car H3 ES1.x:

	usb3_peri0: usb@ee020000 {
@@ -39,3 +45,20 @@ Example of R-Car H3 ES1.x: 
		interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&cpg CPG_MOD 327>;

	};



Example of RZ/G2E:

	usb3_peri0: usb@ee020000 {

		compatible = "renesas,r8a774c0-usb3-peri",

			     "renesas,rcar-gen3-usb3-peri";

		reg = <0 0xee020000 0 0x400>;

		interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;

		clocks = <&cpg CPG_MOD 328>;

		companion = <&xhci0>;

		usb-role-switch;



		port {

			usb3_role_switch: endpoint {

				remote-endpoint = <&hd3ss3220_ep>;

			};

		};

	};

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