From patchwork Tue Aug 13 11:27:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= X-Patchwork-Id: 11091839 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 E684A14DB for ; Tue, 13 Aug 2019 11:29:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D3B6C285E5 for ; Tue, 13 Aug 2019 11:29:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C6211285F0; Tue, 13 Aug 2019 11:29:52 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 587C2285E5 for ; Tue, 13 Aug 2019 11:29:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=aWHGSQ7LESMeTWBF15kxbM9uBgk6VEYXXYhsCY7l6i4=; b=IN9jtTgpkySQTo uRmva+5Ka79Aw9/Qzbfi/4//vMjz5c6MBcqMOu/zNg1YIZKJnirjDAdd7Cm72MinWWXp8SgUSdg6l 6QLvVa689DJdYmD8nKY23QKmoGP7AMO26Y+6wCX4ApDlqTmV9C2NvicQWb8Ro9AVhCK1wTK9AFQyt 4Cdn+9O0K+l1Yp2cXTYEofB+YJV/03XaJeXJuzBopaWVeeaQ4UChqqhJVq9Fpq4imSkuXDpz/getr lwtoo8rj7OPwxpaFpvTxp/gvccdYJj0X8NTTKFezdkFbSuCK8/i97RIAdO3edhzQnpaeKiloMeemC AXkJ6g7lwCzGJPDQAULA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hxUzv-0002S5-Qh; Tue, 13 Aug 2019 11:29:52 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hxUxp-0000Nf-1H; Tue, 13 Aug 2019 11:27:43 +0000 X-UUID: c1678e12952c4f01b4e65681700d05e9-20190813 X-UUID: c1678e12952c4f01b4e65681700d05e9-20190813 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1274043310; Tue, 13 Aug 2019 03:27:22 -0800 Received: from MTKMBS31N1.mediatek.inc (172.27.4.69) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 13 Aug 2019 04:27:21 -0700 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; Tue, 13 Aug 2019 19:27:14 +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; Tue, 13 Aug 2019 19:27:17 +0800 From: Chunfeng Yun To: Rob Herring , Greg Kroah-Hartman , Biju Das Subject: [PATCH next v9 00/11] add USB GPIO based connection detection driver Date: Tue, 13 Aug 2019 19:27:03 +0800 Message-ID: <1565695634-9711-1-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty MIME-Version: 1.0 X-TM-SNTS-SMTP: 60EE3475727C8F8EA180652F2BC9E94AE75F43462F5133011D73E92E678602342000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190813_042741_537368_C153D463 X-CRM114-Status: GOOD ( 13.99 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Hans de Goede , Heikki Krogerus , Badhri Jagan Sridharan , Linus Walleij , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Matthias Brugger , Andy Shevchenko , linux-mediatek@lists.infradead.org, Min Guo , Chunfeng Yun , Nagarjuna Kristam , Adam Thomson , linux-arm-kernel@lists.infradead.org, Li Jun Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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 USB GPIO based connection detection driver and try to replace the function provided by extcon-usb-gpio driver. v9 changes: 1. replace signed-off-by by suggested-by Heikki 2. add reviewed-by Linus 3. use class_find_device_by_fwnode() introduced by series [1] [1]: https://lore.kernel.org/patchwork/patch/1103630/ [v3,1/7] drivers: Introduce device lookup variants by name they are already in: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git/log/drivers/base/core.c?h=driver-core-next v8 changes: 1. rename the driver's name suggested by Heikki 2. move the driver from usb/roles/ into usb/common/ suggested by Heikki 3. introduce Kconfig for usb common core to add the new driver 4. modify binding of the driver 5. rename the subject title v7 changes: 1. [5/10]: add signed-off-by Chunfeng 2. [6/10]: add signed-off-by Chunfeng 3. [6/10]: depends on linux-next of Rafael's tree [1] 4. [7/10]: add signed-off-by Chunfeng and tested-by Biju 5. [9/10]: add tested-by Nagarjuna, and remove DEV_PMS_OPS suggested by Andy [1] https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/log/?h=linux-next 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 (8): dt-binding: usb: add usb-role-switch property dt-bindings: connector: add optional properties for Type-B dt-bindings: usb: add binding for USB GPIO based connection detection driver dt-bindings: usb: mtu3: add properties about USB Role Switch usb: roles: get usb-role-switch from parent usb: common: create Kconfig file usb: common: add USB GPIO based connection detection 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 + .../devicetree/bindings/usb/usb-conn-gpio.txt | 31 ++ drivers/base/devcon.c | 43 ++- drivers/usb/Kconfig | 35 +-- drivers/usb/common/Kconfig | 51 ++++ drivers/usb/common/Makefile | 1 + drivers/usb/common/usb-conn-gpio.c | 284 ++++++++++++++++++ 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/class.c | 41 ++- include/linux/device.h | 10 +- include/linux/usb/role.h | 37 +++ 18 files changed, 570 insertions(+), 58 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/usb-conn-gpio.txt create mode 100644 drivers/usb/common/Kconfig create mode 100644 drivers/usb/common/usb-conn-gpio.c