Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp4848137yba; Wed, 8 May 2019 03:57:40 -0700 (PDT) X-Google-Smtp-Source: APXvYqxJeuyGUOfHnUxFVP0Jf/EWKAYknw2aeFRASuHclFJ42Sc9F6Bzq3ExbsD1UU7b0wfgW08Z X-Received: by 2002:a17:902:8c81:: with SMTP id t1mr38438167plo.333.1557313060620; Wed, 08 May 2019 03:57:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557313060; cv=none; d=google.com; s=arc-20160816; b=0p7xt3dq6U5EMNDL6WrfqnR2WKAqDMbQFptEDhB9NzNX79zQVwPtJio+dIRNeMXOvh z48v+CA9FNBXkdHui2rOIzA85gKOzDjrK9aaMdcjDwnoZuAyxxBBeld/4pm4odJdsiJl KXDkUfSLd1udjr5QfpxFzPlgm/6/KT4M55yTlhvzd9zcOJgt2UYwwaw9u8B/IdhrixUW O0Dv6WHf305t6XtKlwDhyTsjuFSFkNCy799/znrOKNvt6Gc9XspZtw0FATQ9XVIe6WFQ MzDDaC8FSBI/9HLYc8LadHDaWum+7964pnEH7o56opV53z1pOd8OLhfMJSftQ6Y2jrWc nmDA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:cms-type:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature:dkim-filter; bh=dgpyXP29E0frg5Fb1yn3nfCEe+lXMK1zNnGILlOg4wE=; b=lJebyHZ6YFELr3ty0BY6ZeOrDjQQFi6yyOJ+Y4BFePH18kcfRU0LUp4ySIRYS75grb DYHpUzcTUi0PiYXq+JlSpmUDzco0NVlH7T8xgGPCzuhrOQtHmuObB4HrJDoUEk2sf058 4BK/kbPgBUPbmSeVB8mSyP5Jd/ejzWWbOxK5JWkEPmIK78Y23gaIy6NAHbZ+G8DWH1NY p/zeEYTx5UR+bxsK5YByObtLGPOYwaoNBceLOjMBoW+5TAWWfsokVh+IT44Mkxiep6TX 7jblv5F6G2ZjCGF8hc/B9bKnW5FR4RXgDfCdREKEL/vw9yw3T165axzmCHkF+G+lTCsz KFjg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=LsbnxUg1; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w34si24682544pla.250.2019.05.08.03.57.22; Wed, 08 May 2019 03:57:40 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=LsbnxUg1; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727311AbfEHKor (ORCPT + 99 others); Wed, 8 May 2019 06:44:47 -0400 Received: from mailout2.w1.samsung.com ([210.118.77.12]:38781 "EHLO mailout2.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725889AbfEHKop (ORCPT ); Wed, 8 May 2019 06:44:45 -0400 Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20190508104443euoutp02f6a8cfe642d54062fdacb785e8ed7051~cr0VfeNqE1605816058euoutp02Y; Wed, 8 May 2019 10:44:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20190508104443euoutp02f6a8cfe642d54062fdacb785e8ed7051~cr0VfeNqE1605816058euoutp02Y DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1557312283; bh=dgpyXP29E0frg5Fb1yn3nfCEe+lXMK1zNnGILlOg4wE=; h=From:To:Cc:Subject:Date:In-reply-to:References:From; b=LsbnxUg12a3jsWUhy7ktPsHEqRK5IKOfeM9BQmfeAxHVuvlEP7nsFLJsj/3EQgJLB 9uLR6RZyr6pPNPL6NjVur2GIhcceJFLISHRfH9TLZ7dLaHqxNn2ASmzq9RwW5mBoT5 TORTCdH8Dst2+AoJjgvFwrDueIos3W37rAvKRnTs= Received: from eusmges3new.samsung.com (unknown [203.254.199.245]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20190508104443eucas1p2cb672c979c05cf0208787536c9c60eeb~cr0VH7jsW3139531395eucas1p2W; Wed, 8 May 2019 10:44:43 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges3new.samsung.com (EUCPMTA) with SMTP id 37.32.04325.A13B2DC5; Wed, 8 May 2019 11:44:42 +0100 (BST) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20190508104442eucas1p2ebdffa348465f2c28177601014614853~cr0UfcbQI3139631396eucas1p2U; Wed, 8 May 2019 10:44:42 +0000 (GMT) X-AuditID: cbfec7f5-fbbf09c0000010e5-90-5cd2b31a8b7a Received: from eusync4.samsung.com ( [203.254.199.214]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id E2.E0.04146.A13B2DC5; Wed, 8 May 2019 11:44:42 +0100 (BST) Received: from AMDC2765.DIGITAL.local ([106.120.51.73]) by eusync4.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0PR600EL2LUETP60@eusync4.samsung.com>; Wed, 08 May 2019 11:44:42 +0100 (BST) From: Marek Szyprowski To: linux-usb@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , Mans Rullgard , Marek Szyprowski , Bartlomiej Zolnierkiewicz , Markus Reichl , Krzysztof Kozlowski Subject: [PATCH v2] usb: core: verify devicetree nodes for disabled interfaces Date: Wed, 08 May 2019 12:44:34 +0200 Message-id: <20190508104434.3409-1-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-reply-to: <106fc58c-1a4f-6605-41d7-b6031c5751a3@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrDIsWRmVeSWpSXmKPExsWy7djP87pSmy/FGJzvtrHYOGM9q0Xz4vVs FufPb2C3uLxrDpvFjPP7mCwWLWtltnh55Aejxdojd9ktfjyczuTA6XHrTr3HplWdbB77565h 93hz+hS7R9+WVYwenzfJBbBFcdmkpOZklqUW6dslcGXMWL+KseAwX0XPpc8sDYxLeLoYOTkk BEwkFmy+zdjFyMUhJLCCUeJs438WCOczo8TN6XNZYKpar52HqlrGKPHh50Goqv+MEvunLmUG qWITMJToetvFBmKLCCRIHNn8HizOLNDNJPFlmQCILSwQIHHkXTMjiM0ioCpx/Md/sBpeARuJ ibvuM0Nsk5dYveEAmM0pYC/xYfcsVoj4AjaJa0fjIGwXiQWLlrFB2DISnR0HmUAOkhBoZpR4 eG4tO4TTwyhxuWkGI0SVtcTh4xdZIS7ik5i0bTrQBg6gOK9ER5sQRImHxLmrv1khPpvEKHH+ 5y22CYwSCxgZVjGKp5YW56anFhvnpZbrFSfmFpfmpesl5+duYgTG4el/x7/uYNz3J+kQowAH oxIP74uCizFCrIllxZW5hxglOJiVRHivT7wUI8SbklhZlVqUH19UmpNafIhRmoNFSZy3muFB tJBAemJJanZqakFqEUyWiYNTqoFxptpe/fXP0u9rnd34IO3WpeQ8/orVR50/GXwzC3K+WOt7 7mHL3+TTlydLvLlSk+B9KSvujfR1wbLr7rPvvpyYb18cwRX8Y6WAAY/K5Oa5qmuOs0ZLxM6P P7ro7Ash3um/RMtyNrrELd/Z2MKuc/zOr3bWtIb8Y8duRJesyn/Tv81I5Yo2w+ZzSizFGYmG WsxFxYkAAQGh178CAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprKLMWRmVeSWpSXmKPExsVy+t/xa7pSmy/FGLQtErLYOGM9q0Xz4vVs FufPb2C3uLxrDpvFjPP7mCwWLWtltnh55Aejxdojd9ktfjyczuTA6XHrTr3HplWdbB77565h 93hz+hS7R9+WVYwenzfJBbBFcdmkpOZklqUW6dslcGXMWL+KseAwX0XPpc8sDYxLeLoYOTkk BEwkWq+dZ+xi5OIQEljCKDH3/RcmCKeRSaLj8zE2kCo2AUOJrrddYLaIQILEkreb2UGKmAW6 mSSam36zdjFycAgL+EkcmSMNUsMioCpx/Md/ZhCbV8BGYuKu+8wQ2+QlVm84AGZzCthLfNg9 ixXEFhKwk9h38iLrBEaeBYwMqxhFUkuLc9Nziw31ihNzi0vz0vWS83M3MQIDa9uxn5t3MF7a GHyIUYCDUYmHd8KsSzFCrIllxZW5hxglOJiVRHivTwQK8aYkVlalFuXHF5XmpBYfYpTmYFES 5+0QOBgjJJCeWJKanZpakFoEk2Xi4JRqYOy/rba+8LNe1+Quo582XCn/98dOKHmeyuE8/5mT sZ/nl+f+3RbZjMmmlt2VkSdU+e4JzdTeEsibsijslMbBmc7mj1wX2dn66S/Zznlr4jaD42u7 LyQeyRJfO//l3QMVnE8FrGTCWxRDV3EvSGFZOMXCRHnmHImKvZPXqh2dznvj6tN7awuPuyix FGckGmoxFxUnAgB3PLddKAIAAA== X-CMS-MailID: 20190508104442eucas1p2ebdffa348465f2c28177601014614853 CMS-TYPE: 201P X-CMS-RootMailID: 20190508104442eucas1p2ebdffa348465f2c28177601014614853 References: <106fc58c-1a4f-6605-41d7-b6031c5751a3@samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit 01fdf179f4b0 ("usb: core: skip interfaces disabled in devicetree") add support for disabling given USB device interface by adding nodes to the USB host controller device. The mentioned commit however identifies the given USB interface node only by the 'reg' property in the host controller children nodes and then checks for their the 'status'. The USB device interface nodes however also has to have a 'compatible' property as described in Documentation/devicetree/bindings/usb/usb-device.txt. This is important, because USB host controller might have child-nodes for other purposes. For example, Exynos EHCI and OHCI drivers already define child-nodes for each physical root hub port and assigns respective PHY controller and parameters for them. This conflicts with the proposed approach and verifying for the presence of the compatible property fixes this issue without changing the bindings and the way the PHY controllers are handled by Exynos EHCI/OHCI drivers. Reported-by: Markus Reichl Fixes: 01fdf179f4b0 ("usb: core: skip interfaces disabled in devicetree") Signed-off-by: Marek Szyprowski --- drivers/usb/core/message.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index e844bb7b5676..6f7d047392bd 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -2009,6 +2009,7 @@ int usb_set_configuration(struct usb_device *dev, int configuration) struct usb_interface *intf = cp->interface[i]; if (intf->dev.of_node && + of_find_property(intf->dev.of_node, "compatible", NULL) && !of_device_is_available(intf->dev.of_node)) { dev_info(&dev->dev, "skipping disabled interface %d\n", intf->cur_altsetting->desc.bInterfaceNumber); -- 2.17.1