From patchwork Fri Mar 15 07:38:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunfeng Yun X-Patchwork-Id: 10854177 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 6AF301823 for ; Fri, 15 Mar 2019 07:40:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 55F2D2A890 for ; Fri, 15 Mar 2019 07:40:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 48F562A892; Fri, 15 Mar 2019 07:40:58 +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,UNPARSEABLE_RELAY autolearn=ham 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 E08F22A891 for ; Fri, 15 Mar 2019 07:40:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728505AbfCOHkW (ORCPT ); Fri, 15 Mar 2019 03:40:22 -0400 Received: from mailgw02.mediatek.com ([1.203.163.81]:4873 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727262AbfCOHkW (ORCPT ); Fri, 15 Mar 2019 03:40:22 -0400 X-UUID: 74f93406e72b450ba7fb8df376042b4b-20190315 X-UUID: 74f93406e72b450ba7fb8df376042b4b-20190315 Received: from mtkcas35.mediatek.inc [(172.27.4.253)] by mailgw02.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 2038116600; Fri, 15 Mar 2019 15:40:15 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by MTKMBS31N1.mediatek.inc (172.27.4.69) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 15 Mar 2019 15:40:12 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 15 Mar 2019 15:40:09 +0800 From: Chunfeng Yun To: Rob Herring , Greg Kroah-Hartman , Heikki Krogerus CC: Mark Rutland , Chunfeng Yun , Matthias Brugger , Adam Thomson , Li Jun , Badhri Jagan Sridharan , Hans de Goede , Andy Shevchenko , Min Guo , , , , , Subject: [PATCH v2 2/6] dt-bindings: usb: add binding for Type-B dual role switch by GPIO Date: Fri, 15 Mar 2019 15:38:29 +0800 Message-ID: <1552635513-2378-3-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1552635513-2378-1-git-send-email-chunfeng.yun@mediatek.com> References: <1552635513-2378-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N 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 It's used to support dual role switch via GPIO when use Type-B receptacle Signed-off-by: Chunfeng Yun --- v2 changes: 1. new patch to make binding clear suggested by Hans --- .../bindings/usb/typeb-switch-gpio.txt | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/typeb-switch-gpio.txt diff --git a/Documentation/devicetree/bindings/usb/typeb-switch-gpio.txt b/Documentation/devicetree/bindings/usb/typeb-switch-gpio.txt new file mode 100644 index 000000000000..d46d83bc6500 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/typeb-switch-gpio.txt @@ -0,0 +1,26 @@ +USB Type-B dual role switch via a GPIO + +This is a virtual device used to switch dual role mode from the USB ID pin +connected to a GPIO pin. + +Required properties: +- compatible: Should be "linux,typeb-switch-gpio" + +Either one of id-gpios or vbus-gpios must be present, and both can be present +as well. +vbus-supply could be present if needed when support dual role mode. + see connector/usb-connector.txt + +Example: + +&mtu3 { + status = "okay"; + + connector@0 { + compatible = "usb-b-connector", "linux,typeb-switch-gpio"; + label = "micro-USB"; + type = "micro"; + id-gpio = <&pio 12 GPIO_ACTIVE_HIGH>; + vbus-supply = <&usb_p0_vbus>; + }; +};