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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham 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 3B5A4C04AB3 for ; Wed, 29 May 2019 07:44:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 18393208C3 for ; Wed, 29 May 2019 07:44:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726884AbfE2HoN (ORCPT ); Wed, 29 May 2019 03:44:13 -0400 Received: from mailgw02.mediatek.com ([1.203.163.81]:60325 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726102AbfE2HoM (ORCPT ); Wed, 29 May 2019 03:44:12 -0400 X-UUID: 9e5f20fd8ee94acbb196ac8a75c68ee1-20190529 X-UUID: 9e5f20fd8ee94acbb196ac8a75c68ee1-20190529 Received: from mtkcas35.mediatek.inc [(172.27.4.253)] by mailgw02.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 606122557; Wed, 29 May 2019 15:44:05 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by MTKMBS31N1.mediatek.inc (172.27.4.69) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 29 May 2019 15:44:03 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 29 May 2019 15:44:02 +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 , Yu Chen Subject: [PATCH v6 00/10] add USB Type-B GPIO connector driver Date: Wed, 29 May 2019 15:43:38 +0800 Message-ID: <1559115828-19146-1-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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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. v6 changes: 1. merge [1] and [2] into this series 2. don't use graph anymore to find usb-role-switch 3. abandon [3] and introduce three patches (6, 7, 8 in this series) to rebuild APIs getting usb-role-switch [1]: [v3] dt-binding: usb: add usb-role-switch property https://patchwork.kernel.org/patch/10934835/ [2]: [v6,08/13] usb: roles: Introduce stubs for the exiting functions in role.h https://patchwork.kernel.org/patch/10909971/ [3]: [PATCH v5 4/6] usb: roles: add API to get usb_role_switch by node v5 changes: 1. remove linux/of.h and put usb_role_switch when error happens, suggested by Biju 2. treat Type-B connector as USB controller's child, but not as a virtual device, suggested by Rob 3. provide and use generic property "usb-role-switch", see [1], suggested by Rob Note: this series still depends on [2] [1]: [v3] dt-binding: usb: add usb-role-switch property https://patchwork.kernel.org/patch/10934835/ [2]: [v6,08/13] usb: roles: Introduce stubs for the exiting functions in role.h https://patchwork.kernel.org/patch/10909971/ 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 (7): dt-binding: usb: add usb-role-switch property 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: get usb-role-switch from parent usb: roles: add USB Type-B GPIO connector driver usb: mtu3: register a USB Role Switch for dual role mode Heikki Krogerus (2): device connection: Add fwnode_connection_find_match() usb: roles: Add fwnode_usb_role_switch_get() function Yu Chen (1): usb: roles: Introduce stubs for the exiting functions in role.h. .../bindings/connector/usb-connector.txt | 14 + .../devicetree/bindings/usb/generic.txt | 4 + .../devicetree/bindings/usb/mediatek,mtu3.txt | 10 + .../bindings/usb/typeb-conn-gpio.txt | 30 ++ drivers/base/devcon.c | 33 +- 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 | 41 ++- drivers/usb/roles/typeb-conn-gpio.c | 286 ++++++++++++++++++ include/linux/device.h | 10 +- include/linux/usb/role.h | 37 +++ 17 files changed, 524 insertions(+), 20 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