From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D74E3C43219 for ; Fri, 26 Apr 2019 06:48:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B60BB206DD for ; Fri, 26 Apr 2019 06:48:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726416AbfDZGr5 (ORCPT ); Fri, 26 Apr 2019 02:47:57 -0400 Received: from Mailgw01.mediatek.com ([1.203.163.78]:2749 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725923AbfDZGrw (ORCPT ); Fri, 26 Apr 2019 02:47:52 -0400 X-UUID: f6a99c4b4cdb43a7b91365e164523a4b-20190426 X-UUID: f6a99c4b4cdb43a7b91365e164523a4b-20190426 Received: from mtkcas32.mediatek.inc [(172.27.4.253)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 155601549; Fri, 26 Apr 2019 14:47:35 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by MTKMBS31DR.mediatek.inc (172.27.6.102) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 26 Apr 2019 14:47:32 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 26 Apr 2019 14:47:31 +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 , , , , , , Biju Das , Linus Walleij Subject: [v4 PATCH 0/6] add USB Type-B GPIO connector driver Date: Fri, 26 Apr 2019 14:47:11 +0800 Message-ID: <1556261237-13823-1-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Because the USB Connector is introduced and the requirement of usb-connector.txt binding, the old way using extcon to support USB Dual-Role switch is now deprecated, meanwhile there is no available common driver when use Type-B connector, typically using an input GPIO to detect USB ID pin. This patch series introduce a Type-B GPIO connector driver and try to replace the function provided by extcon-usb-gpio driver. v4 changes: 1. use switch_fwnode_match() to find fwnode suggested by Heikki 2. assign fwnode member of usb_role_switch struct suggested by Heikki 3. make [4/6] depend on [2] 3. remove linux/gpio.h suggested by Linus 4. put node when error happens [4/6] usb: roles: add API to get usb_role_switch by node [2] [v6,08/13] usb: roles: Introduce stubs for the exiting functions in role.h https://patchwork.kernel.org/patch/10909971/ v3 changes: 1. add GPIO direction, and use fixed-regulator for GPIO controlled VBUS regulator suggested by Rob; 2. rebuild fwnode_usb_role_switch_get() suggested by Andy and Heikki 3. treat the type-B connector as a virtual device; 4. change file name of driver again 5. select USB_ROLE_SWITCH in mtu3/Kconfig suggested by Heikki 6. rename ssusb_mode_manual_switch() to ssusb_mode_switch() v2 changes: 1. make binding clear, and add a extra compatible suggested by Hans Chunfeng Yun (6): dt-bindings: connector: add optional properties for Type-B dt-bindings: usb: add binding for Type-B GPIO connector driver dt-bindings: usb: mtu3: add properties about USB Role Switch usb: roles: add API to get usb_role_switch by node usb: roles: add USB Type-B GPIO connector driver usb: mtu3: register a USB Role Switch for dual role mode .../bindings/connector/usb-connector.txt | 14 + .../devicetree/bindings/usb/mediatek,mtu3.txt | 10 +- .../bindings/usb/typeb-conn-gpio.txt | 49 +++ drivers/usb/mtu3/Kconfig | 1 + drivers/usb/mtu3/mtu3.h | 5 + drivers/usb/mtu3/mtu3_debugfs.c | 4 +- drivers/usb/mtu3/mtu3_dr.c | 48 ++- drivers/usb/mtu3/mtu3_dr.h | 6 +- drivers/usb/mtu3/mtu3_plat.c | 3 +- drivers/usb/roles/Kconfig | 11 + drivers/usb/roles/Makefile | 1 + drivers/usb/roles/class.c | 25 ++ drivers/usb/roles/typeb-conn-gpio.c | 305 ++++++++++++++++++ include/linux/usb/role.h | 8 + 14 files changed, 481 insertions(+), 9 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/typeb-conn-gpio.txt create mode 100644 drivers/usb/roles/typeb-conn-gpio.c -- 2.21.0