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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25B8AC433EF for ; Wed, 12 Jan 2022 03:21:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349162AbiALDVO (ORCPT ); Tue, 11 Jan 2022 22:21:14 -0500 Received: from mail-dm6nam12on2046.outbound.protection.outlook.com ([40.107.243.46]:46653 "EHLO NAM12-DM6-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1348321AbiALDVM (ORCPT ); Tue, 11 Jan 2022 22:21:12 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=RwXRGhWX0k1ckmB6/9MrqnUCahvsvXRtgtBRbmgMQOAGEgJkCzgrCGxKlh+raUZWL5rHbOPUmrKOwayheZUQaQPAfaUHIjfuJTt6lUZkDfqfZRBfNp47JGHY1EU4STG8fmUJVCGCw8Xizmjui247xbVJWhAwMUOggwtmICMUVS2b8DkxatTmYypkjTVPvr0L2Nr7I/F99E4RChXDMDHSpKM7Z0kt0OtlJYi3zxC8WTstuiDqqF73D34j+KcujioaMlRNDiNfl2pQzUL1/MSYH5buefnXUmVzpVJS1CqS+eXU7Okfy39S0yREcNHDeB+Tqj1KDvlQHGP1wyXU+KVqfg== 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=EeCBl07NE4L2YwHYzPiE4DJyexpLUeV8M+WBF//R5p4=; b=fEFWjB5fFGzJEJDQls4SATEHXdYqsfxFsreedKYnWjXxslRAbx2MajutBXTrnXTe87qFSGVRUqvNgG5O2ya9zGYLqvvX49gGEpQGRlkzY31Jeu5MVueS7abQzEbdL5SvwwhLXoes0L0iqvlxsWTZAXDADQFqUIG7eu2qY2HrT0lJ4uonQaTmr0S7iVhc0QA4bvm8yjjtRPKitfd4r+q6tT3NwdynXr0q7rU3GgB8IyCyPZPPBW5omqdlJBBa2SbSuLY7JW88bEo9r7OWYDLdQ/q19N4X4jgP1DVk13Ho6SzrqoUwogAipFuIF4HSCod9wDaxX2nbXFsIOI2MzBdSGg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 12.22.5.234) smtp.rcpttodomain=linuxfoundation.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=EeCBl07NE4L2YwHYzPiE4DJyexpLUeV8M+WBF//R5p4=; b=g/niX0GgMlslUntwo/Q3814rKPdK27VppMSA65tI6y5hShirXC04w4k5qeUPTuWxjOwD34OBF+lyC4bSG+RC3QlASd9wSIi5NLR7LxtqojRRbmjYqTFIx4AfvwPlnL5eXSqsYmQs3KDWaaUfmerM8MTk76fHfTsyeJRE32p5kqwDuEVyKk/TbeCKST9P062+3KNy6/u+rk4IK4VCVFFxdQ9sOLRaEzZoxOQv4nglXb+ugi9yGuyq5pCrMDa9qZcPQAZZGSaBCZIy8x/IpEnQRflFIEqBuYE4+79Omgwz4orE6j9zw3zZVuDSBcY+AXgpgCUCIWrXZHBdksYCAJYCVQ== Received: from DM5PR13CA0023.namprd13.prod.outlook.com (2603:10b6:3:23::33) by DM5PR12MB1500.namprd12.prod.outlook.com (2603:10b6:4:11::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4867.11; Wed, 12 Jan 2022 03:21:10 +0000 Received: from DM6NAM11FT039.eop-nam11.prod.protection.outlook.com (2603:10b6:3:23:cafe::bc) by DM5PR13CA0023.outlook.office365.com (2603:10b6:3:23::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4888.4 via Frontend Transport; Wed, 12 Jan 2022 03:21:10 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 12.22.5.234) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 12.22.5.234 as permitted sender) receiver=protection.outlook.com; client-ip=12.22.5.234; helo=mail.nvidia.com; Received: from mail.nvidia.com (12.22.5.234) by DM6NAM11FT039.mail.protection.outlook.com (10.13.172.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.4867.7 via Frontend Transport; Wed, 12 Jan 2022 03:21:10 +0000 Received: from HQMAIL111.nvidia.com (172.20.187.18) by DRHQMAIL101.nvidia.com (10.27.9.10) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Wed, 12 Jan 2022 03:21:04 +0000 Received: from HQMAIL107.nvidia.com (172.20.187.13) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Wed, 12 Jan 2022 03:21:04 +0000 Received: from waynec-Precision-5760.nvidia.com (10.127.8.13) by mail.nvidia.com (172.20.187.13) with Microsoft SMTP Server id 15.0.1497.18 via Frontend Transport; Wed, 12 Jan 2022 03:21:03 +0000 From: Wayne Chang To: , CC: , , , Subject: [PATCH v3 1/1] ucsi_ccg: Check DEV_INT bit only when starting CCG4 Date: Wed, 12 Jan 2022 11:21:00 +0800 Message-ID: <20220112032100.610146-1-waynec@nvidia.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: eb762c27-f6a9-4aa0-6255-08d9d57a94b0 X-MS-TrafficTypeDiagnostic: DM5PR12MB1500:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7691; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:12.22.5.234;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(4636009)(40470700002)(46966006)(36840700001)(54906003)(316002)(8676002)(110136005)(36756003)(82310400004)(40460700001)(2906002)(2616005)(4326008)(8936002)(356005)(508600001)(83380400001)(107886003)(426003)(81166007)(70586007)(47076005)(5660300002)(26005)(70206006)(36860700001)(186003)(1076003)(336012)(86362001)(7696005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2022 03:21:10.5387 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: eb762c27-f6a9-4aa0-6255-08d9d57a94b0 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.234];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT039.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR12MB1500 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Sing-Han Chen after driver sending the UCSI_START cmd, CCGx would clear Bit 0:Device Interrupt in the INTR_REG if CCGX reset successfully. however, there might be a chance that other bits in INTR_REG are not cleared due to internal data queued in PPM and cause the driver thinks CCGx reset failed. the commit checks bit 0 in INTR_REG and ignore other bits. ucsi driver would reset PPM later. Fixes: 247c554a14aa16ca ("usb: typec: ucsi: add support for Cypress CCGx") Signed-off-by: Sing-Han Chen Signed-off-by: Wayne Chang --- drivers/usb/typec/ucsi/ucsi_ccg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c index bff96d64dddf..6db7c8ddd51c 100644 --- a/drivers/usb/typec/ucsi/ucsi_ccg.c +++ b/drivers/usb/typec/ucsi/ucsi_ccg.c @@ -325,7 +325,7 @@ static int ucsi_ccg_init(struct ucsi_ccg *uc) if (status < 0) return status; - if (!data) + if (!(data & DEV_INT)) return 0; status = ccg_write(uc, CCGX_RAB_INTR_REG, &data, sizeof(data)); -- 2.25.1