From patchwork Wed Jan 24 15:25:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 191625 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:2553:b0:103:945f:af90 with SMTP id p19csp1063182dyi; Wed, 24 Jan 2024 07:27:13 -0800 (PST) X-Google-Smtp-Source: AGHT+IHknPt8BkNLxWTNo69g2S/7quE3IuahiL0UGEXZxRO2R7EsS9LL8/J/LEKe+kgc8bFXLUhP X-Received: by 2002:a17:90a:cb0e:b0:28e:791f:acf4 with SMTP id z14-20020a17090acb0e00b0028e791facf4mr4495142pjt.72.1706110032854; Wed, 24 Jan 2024 07:27:12 -0800 (PST) Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. [139.178.88.99]) by mx.google.com with ESMTPS id m8-20020a17090a158800b0028e79c30119si11917560pja.90.2024.01.24.07.27.12 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jan 2024 07:27:12 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-37247-ouuuleilei=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b=ZTEFbzKU; arc=fail (signature failed); spf=pass (google.com: domain of linux-kernel+bounces-37247-ouuuleilei=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-37247-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 176FD2836F8 for ; Wed, 24 Jan 2024 15:26:51 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 6B5087C082; Wed, 24 Jan 2024 15:25:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="ZTEFbzKU" Received: from EUR05-AM6-obe.outbound.protection.outlook.com (mail-am6eur05on2048.outbound.protection.outlook.com [40.107.22.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E65677C0A6; Wed, 24 Jan 2024 15:25:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.22.48 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706109954; cv=fail; b=quymFsTh/F3q5eDLXbCukprDsNakjZEG+3VI2Ud54wJNbYOS/nd23daeQ8MyHds7dJqp6Fv9K22KHUbhtQ4q4PNPZSdSPfI/UtpJvHxzKsgpBoJuGJ7gYot86HLWYWx7HCq3jDPGl1INAdHnChzor7j05Tfv2cMLtzoIdmAL520= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706109954; c=relaxed/simple; bh=NqWfXzouQuD5pJi9v80L3T6A/gzQ0pETLZ1AH5q7uHk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: Content-Type:MIME-Version; b=dCGa1KT9VuKQasWB22vkENxg9gKh+M0ihydTCJTsSWsmxUqDrMPK3a5vhkXhLTOmOeRLrCL7Q8CsJ1Gt/C2eFKDmuai9HUGX/xVc9Cpv0IrZX3Vqi6xU868/rUbSIbZsZejmpTaP8rotekWoSO2tbQ0CMLbhOU6lfUj7tBMIgwA= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com; spf=pass smtp.mailfrom=nxp.com; dkim=pass (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b=ZTEFbzKU; arc=fail smtp.client-ip=40.107.22.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nxp.com ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=l5lOg2FolcIEEKTXQQJtAmD9Re/w/S4f27KzPEnd9sIxygRrRDr/J/gPUKzfYbyQODCe1dAunHTTmWnqr/DEWmxraoLssXeASkRNUgG2ZrQ/FxiJD1LHfEsZQdxa5xavJaF45NSeCutQXC04XEEaqtlXieQNtVHruG6U3EMeF+cC9JfzSQDXvCBg2t6AMh4L0I/dULhdPi45dSOmjrZK8QGZI9bWhf1KYgvJclXhnbu50RQZKuES4QzrNhlMeB91Fper2YVzYHS+AIfi5w7d6C7SKtKMzoF5sNTiy3S1JITVehKfELjze9TZHeR/DAA75D/Iy5GfrM71rpFZvIaBDQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=JDR8jTXkAo/LOx6kRR5GYFpIM24pu/gcbxUJRoGaIwc=; b=ZXP2NndeMyy7HPl6OdZslPMvfX2ydLUKIi64CPnGKSoXqlubMJRi2iX6zrUbn50CD9oKRKATUp126BclJjlYt7aLsqIzH8UxZAafmHVJ4hubTcoB02Uz9aHKsSIjEneqL/Wu0j/O95tTce+BKWz3NjpH5a2JB/DayCOzsrnCdMNQ0Y5PILiMNGX0UMy0W1E1MQ40uI0Fw6XT2UWpaUeoZII/aYF2TMafkpHHmCk0Az6sIHySP/jd+SDVSgtI5ZAbkRvpwzwA0EKv3XEPiDLdOBZRLV41Ho8rhzkaeiI8Ov3D/tFQumYqbEat9Ji5x4xB1f928b16c6ugVkWwzfRx7A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=JDR8jTXkAo/LOx6kRR5GYFpIM24pu/gcbxUJRoGaIwc=; b=ZTEFbzKURNujy68Yi9iJvp6A+MfYqWT8a5RtB6dEQ1JhZNmJhqp2TLdS3Ycc0d102KStfuaG8TtWjswMes32fIzHLLrKKqe3+mPQtAjwhS+e30Uih00KrA7FZvVi/Xsw+tBeBpnh2/WnppJkxMCOZB8GG0NYT2YZqEzgMRNncEc= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) by VI1PR04MB10001.eurprd04.prod.outlook.com (2603:10a6:800:1d9::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7228.22; Wed, 24 Jan 2024 15:25:48 +0000 Received: from PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::c8b4:5648:8948:e85c]) by PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::c8b4:5648:8948:e85c%3]) with mapi id 15.20.7202.035; Wed, 24 Jan 2024 15:25:48 +0000 From: Frank Li To: thinh.nguyen@synopsys.com Cc: Frank.Li@nxp.com, balbi@kernel.org, devicetree@vger.kernel.org, gregkh@linuxfoundation.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, mark.rutland@arm.com, mathias.nyman@intel.com, pku.leo@gmail.com, ran.wang_1@nxp.com, robh+dt@kernel.org, sergei.shtylyov@cogentembedded.com Subject: [PATCH v4 2/3] dt-bindings: usb: dwc3: Add snps,host-vbus-glitches-quirk avoid vbus glitch Date: Wed, 24 Jan 2024 10:25:24 -0500 Message-Id: <20240124152525.3910311-3-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240124152525.3910311-1-Frank.Li@nxp.com> References: <20240124152525.3910311-1-Frank.Li@nxp.com> X-ClientProxiedBy: BY5PR04CA0017.namprd04.prod.outlook.com (2603:10b6:a03:1d0::27) To PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB9642:EE_|VI1PR04MB10001:EE_ X-MS-Office365-Filtering-Correlation-Id: 383ee606-6b83-44a8-a36f-08dc1cf0bdce X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 6nuGzwLalJlvTsVHvBgEAlGS3wR8zSByTzErhHYa4LeLd0Q2EAp1G2E9qBBg9FK7ydPOTKPdXmm9OChosqiUbiHbyMPg7PR7PYoM/MzPDI11C++aGNBMDl21zsadDGIy9iljGpvJw+5wZDfqG4y2nNaFopQyGF5kiHVJEbF17qDeE9PGN+d4b6bwL/PCZwBNMROj6xGhlNEloh6/UY5d/QGk225Y7BXmZaPKPkNI5+yrL96fzhJgUE5X30lXmWvmphsDAeQthFmOVKj/i5M+tsspAADSKzpSMYCSh/08n9FvnzVZTN96d++J+cYypQAf6z5Os2ivmlzNu73IWnNpy+WTLCp7Be9EhGPCdJvUzmly83NhC4J7e3M6BLKAKtCkb2QWB2J9SJzQppwU50FmdilXGgQFT4Ki2xd+d4dNztjiiNGGpU3TRSpkRqYl1KqEkglFqJyZhIhrbDNOkhs28j1jpJlfJiJUbGFoz0anrZiEJDHJTJj1pXx8VbhmjK7ux1pShoQ0s51sQbPmdQl7tWA61cb3HCgDafqlNA0rwd/5wi1qMaY1EAfaCFLMa1r1IrMe5I6HDTj2SqNT5PKlc8xRzAlDnfyC6obl38un/hYYx24qAqzCrWUc4mWiztqxRWjpHt1vPyd+9wlwqGwC+uMBedNrT4u6BjM1XakGlLQ= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAXPR04MB9642.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(366004)(346002)(136003)(396003)(39860400002)(376002)(230922051799003)(230273577357003)(230173577357003)(1800799012)(64100799003)(186009)(451199024)(4326008)(8676002)(5660300002)(8936002)(66556008)(66946007)(316002)(66476007)(6916009)(2906002)(38350700005)(36756003)(86362001)(41300700001)(7416002)(38100700002)(52116002)(6506007)(6512007)(6666004)(83380400001)(26005)(478600001)(6486002)(2616005)(1076003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 383ee606-6b83-44a8-a36f-08dc1cf0bdce X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB9642.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jan 2024 15:25:48.3489 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: bPds0q1iTZ7XAVWH79NK40UGrAeMU2FefCn2O453KxVBl3NLA6OBCeUUaz8gBioOu7nlCLrI70qKhopCl/EbaQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB10001 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788986033715312981 X-GMAIL-MSGID: 1788986033715312981 From: Ran Wang When DWC3 is set to host mode by programming register DWC3_GCTL, VBUS (or its control signal) will turn on immediately on related Root Hub ports. Then the VBUS will be de-asserted for a little while during xhci reset (conducted by xhci driver) for a little while and back to normal. This VBUS glitch might cause some USB devices emuration fail if kernel boot with them connected. One SW workaround which can fix this is to program all PORTSC[PP] to 0 to turn off VBUS immediately after setting host mode in DWC3 driver(per signal measurement result, it will be too late to do it in xhci-plat.c or xhci.c). Signed-off-by: Ran Wang Reviewed-by: Peter Chen Signed-off-by: Frank Li --- Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml index 203a1eb66691f..8f5d250070c78 100644 --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml @@ -273,6 +273,13 @@ properties: with an external supply. type: boolean + snps,host-vbus-glitches-quirk: + description: + When set, power off all Root Hub ports immediately after + setting host mode to avoid vbus (negative) glitch happen in later + xhci reset. And the vbus will back to 5V automatically when reset done. + type: boolean + snps,is-utmi-l1-suspend: description: True when DWC3 asserts output signal utmi_l1_suspend_n, false when