From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Biju Das Subject: [PATCH RESEND v7 3/3] dt-bindings: usb: renesas_usb3: Document usb role switch support Date: Wed, 4 Sep 2019 09:15:41 +0100 Message-Id: <1567584941-13690-4-git-send-email-biju.das@bp.renesas.com> In-Reply-To: <1567584941-13690-1-git-send-email-biju.das@bp.renesas.com> References: <1567584941-13690-1-git-send-email-biju.das@bp.renesas.com> To: Rob Herring , Mark Rutland , Yoshihiro Shimoda , Greg Kroah-Hartman Cc: Biju Das , Heikki Krogerus , Felipe Balbi , linux-usb@vger.kernel.org, devicetree@vger.kernel.org, Simon Horman , Geert Uytterhoeven , Chris Paterson , Fabrizio Castro , linux-renesas-soc@vger.kernel.org List-ID: Update the DT bindings documentation to support usb role switch for USB Type-C connector using USB role switch class framework. Signed-off-by: Biju Das Reviewed-by: Yoshihiro Shimoda Reviewed-by: Rob Herring --- V7--> V7 RESEND * Rebased to the new file name renesas,usb3-peri.txt. * Added Reviewed-by tags of Rob and Shimoda-San. V6-->V7 * Incorporated shimoda-san's review comments. (https://patchwork.kernel.org/patch/10944631/) V5-->V6 * Updated description * Added usb-role-switch-property V4-->V5 * No Change V3-->V4 * No Change V2-->V3 * Added optional renesas,usb-role-switch property. V1-->V2 * Added usb-role-switch-property * Updated the example with usb-role-switch property. --- .../devicetree/bindings/usb/renesas,usb3-peri.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt b/Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt index 35039e7..5eecfbc 100644 --- a/Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt +++ b/Documentation/devicetree/bindings/usb/renesas,usb3-peri.txt @@ -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 = ; 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 = ; + clocks = <&cpg CPG_MOD 328>; + companion = <&xhci0>; + usb-role-switch; + + port { + usb3_role_switch: endpoint { + remote-endpoint = <&hd3ss3220_ep>; + }; + }; + }; -- 2.7.4