From patchwork Fri May 31 09:59:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 10969909 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9992914DB for ; Fri, 31 May 2019 10:07:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 88BC628BC8 for ; Fri, 31 May 2019 10:07:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7CA3928BD3; Fri, 31 May 2019 10:07:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2E14728BC9 for ; Fri, 31 May 2019 10:07:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727070AbfEaKHx (ORCPT ); Fri, 31 May 2019 06:07:53 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:18024 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726998AbfEaKHx (ORCPT ); Fri, 31 May 2019 06:07:53 -0400 X-IronPort-AV: E=Sophos;i="5.60,534,1549897200"; d="scan'208";a="17479562" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 31 May 2019 19:07:52 +0900 Received: from be1yocto.ree.adwin.renesas.com (unknown [172.29.43.62]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 2D189421D792; Fri, 31 May 2019 19:07:45 +0900 (JST) From: Biju Das 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 Subject: [PATCH v7 2/7] dt-bindings: usb: renesas_usb3: Document usb role switch support Date: Fri, 31 May 2019 10:59:55 +0100 Message-Id: <1559296800-5610-3-git-send-email-biju.das@bp.renesas.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1559296800-5610-1-git-send-email-biju.das@bp.renesas.com> References: <1559296800-5610-1-git-send-email-biju.das@bp.renesas.com> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- 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.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/renesas_usb3.txt b/Documentation/devicetree/bindings/usb/renesas_usb3.txt index 35039e7..5eecfbc 100644 --- a/Documentation/devicetree/bindings/usb/renesas_usb3.txt +++ b/Documentation/devicetree/bindings/usb/renesas_usb3.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>; + }; + }; + };