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_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 C37E5C43381 for ; Fri, 15 Mar 2019 07:40:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B52121871 for ; Fri, 15 Mar 2019 07:40:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728515AbfCOHkW (ORCPT ); Fri, 15 Mar 2019 03:40:22 -0400 Received: from mailgw02.mediatek.com ([1.203.163.81]:25482 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727250AbfCOHkW (ORCPT ); Fri, 15 Mar 2019 03:40:22 -0400 X-UUID: 81badba19c8046d68f8830fffdf33ee2-20190315 X-UUID: 81badba19c8046d68f8830fffdf33ee2-20190315 Received: from mtkcas34.mediatek.inc [(172.27.4.253)] by mailgw02.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 196177990; Fri, 15 Mar 2019 15:40:07 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by MTKMBS31DR.mediatek.inc (172.27.6.102) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 15 Mar 2019 15:40:06 +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 15:40:05 +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 0/6] add USB Type-B GPIO based role switch driver Date: Fri, 15 Mar 2019 15:38:27 +0800 Message-ID: <1552635513-2378-1-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. This patch series introduce a Type-B connector driver and try to replace the function provided by extcon-usb-gpio driver. The main purpose of the patches is also to solve the Type-B connector problem encountered in [1]. [1]: https://patchwork.kernel.org/patch/10819377/ 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 dual role switch by GPIO dt-bindings: usb: mtu3: add properties about USB Role Switch usb: roles: add API to get usb_role_switch by node usb: roles: add driver of USB Type-B role switch by GPIO usb: mtu3: register a USB Role Switch for dual role mode .../bindings/connector/usb-connector.txt | 9 + .../devicetree/bindings/usb/mediatek,mtu3.txt | 10 +- .../bindings/usb/typeb-switch-gpio.txt | 26 ++ drivers/usb/mtu3/mtu3.h | 5 + drivers/usb/mtu3/mtu3_dr.c | 50 ++- drivers/usb/mtu3/mtu3_plat.c | 3 +- drivers/usb/roles/Kconfig | 14 + drivers/usb/roles/Makefile | 1 + drivers/usb/roles/class.c | 30 ++ drivers/usb/roles/typeb-switch-gpio.c | 285 ++++++++++++++++++ include/linux/usb/role.h | 1 + 11 files changed, 428 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/typeb-switch-gpio.txt create mode 100644 drivers/usb/roles/typeb-switch-gpio.c -- 2.20.1