From patchwork Wed Jun 20 05:17:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Rosin X-Patchwork-Id: 10476089 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DA4AF60210 for ; Wed, 20 Jun 2018 05:34:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C56B328797 for ; Wed, 20 Jun 2018 05:34:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B622A28DBC; Wed, 20 Jun 2018 05:34:21 +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=-2.9 required=2.0 tests=BAD_ENC_HEADER,BAYES_00, DKIM_SIGNED, DKIM_VALID, MAILING_LIST_MULTI autolearn=ham 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 4348128797 for ; Wed, 20 Jun 2018 05:34:21 +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:References:In-Reply-To: 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: List-Owner; bh=QKOyimyl53YpLo8THWYF4QmGl6VxZbexv3ou9j6xhxU=; b=P6qZ2hLHCd4hnZ 5zDYJmLZwmp/9T9jy3Jd4qurXxU/lLhavGe/0wMpWykrN9sop1UhjVYOkCujXHn7ZMBVlEiSx2AkX nyqNZpfCrjSbqG68BAS0RDR6YTrKEmy6LtT3OIbscWHBtvhKTxvnqn3OFbU/OZtIhkgnSPXsF9QrN pbWmTcd9iMQeekuvICrJSzLy1cscELC4yT5bamo8A66kHCdk0wB+6XduSJ7+NKLOOUV6c7PuPttn8 dnN9aHpBk+eDXrSjzVWNxuSesyA/Id9WNTC/BmeMPYvWTftW2mrBu4COEd9HWs/f6/E3w6Q/Yl2Nx QCrQR26US92LmX5WGC6w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fVVl2-00010s-A0; Wed, 20 Jun 2018 05:34:16 +0000 Received: from merlin.infradead.org ([2001:8b0:10b:1231::1]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fVVVt-0001AH-C7 for linux-arm-kernel@bombadil.infradead.org; Wed, 20 Jun 2018 05:18:37 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Type:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=VQCSNQL/37dY3ejcySXVopWlAnzUddsyuB4HyPiR5Os=; b=UfLpbph21AFgLRUtbd7Y8x1J3 po5lCJbM95WoXZyBXNS7ImwNdah8Y3ajhoQ++IbOgLwouUYCXBfiX39xmK6uAO6LYstFP0UsEhOKx dIqaVvjIDPbWSMMdce62G9GV2b2p1XjjDjw1hAQuZP2O8weSP5bBZfIhmPuox392rlx20BGNmKq1x O18NI1nCLrxODNcQvT28CFjLCyCyZK7PIp9VZnaZzvS0sy0ZgVV1iS3q1JYkbXk0kzg40fJrKoXsa dLAcni81mWI7EyMzMe4CM2kccRT1/yVPnB+0iwA1ZkuHKT6oBPYEZdYtBywKSgyzMwDWTq6bioejf +n4xiCnmQ==; Received: from mail-he1eur01on0120.outbound.protection.outlook.com ([104.47.0.120] helo=EUR01-HE1-obe.outbound.protection.outlook.com) by merlin.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fVVVp-0005fv-Od for linux-arm-kernel@lists.infradead.org; Wed, 20 Jun 2018 05:18:34 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axentia.se; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=VQCSNQL/37dY3ejcySXVopWlAnzUddsyuB4HyPiR5Os=; b=qfkYDm7EMlSrWTYPKsnLThga4I+sJu8VM2fMu2aIhjO4ixPbzuaWlJADNF01RsapQ7lUyo4oam98SLCADezWjUshhXNu08wCHa9qtsuMwIG8OejorOknQX8nnJz3RRHQN5eYNwMJj5tIp6hBJdtwYNsziRWnVZ4joeDnrp7bZNI= Received: from orc.pedanet (85.226.244.23) by AM5PR0201MB2452.eurprd02.prod.outlook.com (2603:10a6:203:35::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.863.20; Wed, 20 Jun 2018 05:18:27 +0000 From: Peter Rosin To: linux-kernel@vger.kernel.org Subject: [PATCH v2 03/10] input: rohm_bu21023: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT) Date: Wed, 20 Jun 2018 07:17:56 +0200 Message-Id: <20180620051803.12206-4-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180620051803.12206-1-peda@axentia.se> References: <20180620051803.12206-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [85.226.244.23] X-ClientProxiedBy: HE1PR05CA0127.eurprd05.prod.outlook.com (2603:10a6:7:28::14) To AM5PR0201MB2452.eurprd02.prod.outlook.com (2603:10a6:203:35::9) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c4bd7941-c7bb-48a5-e3c2-08d5d66d42a3 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(7021125)(4534165)(7022125)(4603075)(4627221)(201702281549075)(7048125)(7024125)(7027125)(7028125)(7023125)(5600026)(711020)(2017052603328)(7153060)(7193020); SRVR:AM5PR0201MB2452; X-Microsoft-Exchange-Diagnostics: 1; AM5PR0201MB2452; 3:kQoNo0PSavTSlbSpdGyzquXjxWDc/DTPgx+y6F0XmECRoDIIhkscbU4dNt7mtiZw6eh71RTov+Q4tDKTo8L2MqfboNJq9kKpfNVcbb54V47YHWtEbm2wrTYsJ9xCGrkTQxhJrPIjNIk4Ygc2uAJKhOeCIqhF1dfDc3SwWtdpaFfoFyOjBHksV9gHJyz/Xt+uhFpDfTBKu2yBq5ukMfdjJLU2B2AIl0pxIDZ3g/01eVjnqtqjU17yL4s5cCe3YA2W; 25:u2S6Nus8pccKsbxxFdPMHEh9ymRzov1FDbOlZdW/Z8q2RnPSHnYzjOkhkLaZaNRBqcInYbn9vHeAeiCMWBWTaJeUdeu5saUAwcQk6drzKPZynl9465Jr6YsXeocNOW76uSQUkArHFGQNup2t4/xU2cW+FZ0LX5Zbq/YBB27fPqgkOapo8lA8h9TFFPsiWxBE5bASwQ0BPMp79I1Fj9KGQFD0eaVBZe7cIxsAh7bCwkZZ8h1UIM38FmnldAk9tdZl4l/09OgQ05wOpFbayKZONjKoSalFTNQKsFiXedCO4Gk2N3ts12LKwwb9DCbZHjglVKTFv6A4di1DC3zMo6uMeA==; 31:yY47wniyxLDS/AeKjgFkyPRVUaXoGlDx6iX3LzQQYHbC408wtcL87L5s04A3J6BsZEQmohQWgzM6RURtpKTGw5jaHe7s56ufV8tRA3hd+1qAxTHDesFUdzZEMR+O9uM03ikn4TCOHFaQM/EXY8NOANpqR5VnZ8HSi76AutkWHUWwULprN6QTth3YmWnbuRz6BmqT+R62SVfRiIcQWMQmRPh3qWESQF4vtt8dPDcGt6I= X-MS-TrafficTypeDiagnostic: AM5PR0201MB2452: Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=peda@axentia.se; X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; X-MS-Exchange-SenderADCheck: 1 X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(6040522)(2401047)(8121501046)(5005006)(10201501046)(3002001)(3231254)(944501410)(52105095)(93006095)(93001095)(149027)(150027)(6041310)(2016111802025)(20161123564045)(20161123560045)(20161123562045)(20161123558120)(6072148)(6043046)(201708071742011)(7699016); SRVR:AM5PR0201MB2452; BCL:0; PCL:0; RULEID:; SRVR:AM5PR0201MB2452; X-Microsoft-Exchange-Diagnostics: 1; AM5PR0201MB2452; 4:dtKrfwPpMR13RZzl0/mjhlQ2hA+cllRetuJt1LgqrUe3Ks0Vy4lOHvxiQ+KgPFvuIXE+mFN1nwPyq+NCEteSF8EvFbmnwxBWJlRyO8KVNTXYWvNyObA9u4yMKTbqKfl/oEnLSjiozeijrZPAbg5l8PTzL8C3fw4uX4QPq6ChyijqjQzb8mLBGmAJCLpRoZRUIhq7FJez8SN09n0USr+9hjKCH3CVS2mxzIM1UXu2ZkdIi7CE+ibYUSR3k0LuwIDjB899bfbL0tXPzidUnz5haw== X-Forefront-PRVS: 070912876F X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10019020)(366004)(396003)(39380400002)(346002)(376002)(39840400004)(189003)(199004)(51416003)(50466002)(7416002)(6116002)(186003)(59450400001)(48376002)(3846002)(26005)(6916009)(53936002)(6666003)(1076002)(7406005)(6512007)(76176011)(15760500003)(2906002)(316002)(386003)(36756003)(478600001)(6506007)(68736007)(86362001)(5660300001)(16586007)(50226002)(52116002)(54906003)(16526019)(2361001)(4326008)(2351001)(47776003)(25786009)(39060400002)(66066001)(8666007)(305945005)(486006)(8676002)(7736002)(97736004)(81166006)(956004)(106356001)(476003)(105586002)(81156014)(6486002)(2616005)(8936002)(74482002)(446003)(11346002)(42262002); DIR:OUT; SFP:1102; SCL:1; SRVR:AM5PR0201MB2452; H:orc.pedanet; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; Received-SPF: None (protection.outlook.com: axentia.se does not designate permitted sender hosts) X-Microsoft-Exchange-Diagnostics: =?us-ascii?Q?1; AM5PR0201MB2452; 23:8PPR58CYxl2Pk3Aa4eaDKjEzysT6Yu7JtQmzehO?= =?us-ascii?Q?9zoslype1oOFiBp+WagfqrKGqPBT+Z7muYgqKe/OSGLMSgWNUBCrEAg51cUn?= =?us-ascii?Q?MkfeVrqmZ22BiqkoiaBWW7VSFz1DZuvP8FxIY99RLgR7htVoWk4TJB78Htr+?= =?us-ascii?Q?SWbxP8rqJ7XNZRWqjC2zJoa6FFq/WUMZyro50OxPBT5TcQCwjEuRU6qNMi/T?= =?us-ascii?Q?LNNBI/F6l8jig8/2XCq4CYoz+wzC4lVUee2+39upFYvLHAb8DShggcZiURUr?= =?us-ascii?Q?wWyihPuwKYbWKHFbmuH8nlEx9XRLmkyMdiz2VBQCwvKwmjkfdSv6bAt8l0+p?= =?us-ascii?Q?m/qY/2qVYS4ivmO1ry0d+FyQaJxDD7oIVnPsic4QisyYYGn+koEtMQHZywVS?= =?us-ascii?Q?W90OVkUYO8UEDQAlmbqUrlyGB46cmQg/JiRbybQt5o3V2+rTTCmVirxCBN/i?= =?us-ascii?Q?R0LLP7Mpli3r68u7ZnMF9IG0/XkP1NjdsaE2PmN0vqLTmc5Ye02ECofQrsH7?= =?us-ascii?Q?g5KlCW8lwYEfFOxKywTFEvauYOaggxaq+muuOmPxDsmISWOzIKtfb9SnnHvT?= =?us-ascii?Q?V++MNNcZp85tfF7ZCrFDLzwb4wY2cGMgH8Q6G7V0r7eAt0NpDV2C1dSXRrxF?= =?us-ascii?Q?G7rlva3PvkyKlMkYzozSTgSBoLdpIjeXbZ5SG69wVljV3fnCmqOlykur54Dl?= =?us-ascii?Q?vaFd9TJIqa0Aby5aXDabWv0vwKHB0/gacwd3k4zPG2/jQH4Cktqmuoj+DDxy?= =?us-ascii?Q?02A+A9qe16HshK5w2FC+pvs2zzPGns05HKmcej76031x30wuIhVOH3HGbcit?= =?us-ascii?Q?DQUH38bmLYOGzY5hhutPf9j6L3KPm4/+qJJgq52OH6e/GtDY1orgCRFOYNPE?= =?us-ascii?Q?aKLe5bpPJWZ9iIXs6lqpPLppEXtPHED1xyRzeyROph2wmh18b9WOCHvhT5Ns?= =?us-ascii?Q?tDJgyYjzQ0aWqDB2hvijhdWmXpQBVTK7nb8Yu3zfutioX4TpRXmJzcOTi8ZX?= =?us-ascii?Q?BeXZMviPJTMuSQkEUOfQwrSgN2aRkeMbGdiGSelEKifY00W18Z8dlslr+Y4t?= =?us-ascii?Q?/yKOFkVS8Zk36dl28l9MMJxHCfMD69QToNheo7ZW3GXBh3AuMm36EKLS7wuC?= =?us-ascii?Q?Pe0ez0VsSERsCzqwJezRdQ7L3j1ittzPyiKGVVlsN3ofvMeY31MYvvKu4/85?= =?us-ascii?Q?86QM09OQSJU5eUOzE9YmTIlxnXGFOfmFP0TBBLRvpb4r1MoO9sPCOuLPlqat?= =?us-ascii?Q?hvReVhIOCN9zkZmfXZaqMdkKKiiDi55jnXoHmRDJnzBgfbfau/Hq6w7Ddw5p?= =?us-ascii?Q?PWe1SiHTM+kIMriF7Lla40j+RPFnVs0rMECZOZqUskJ2b5ibLR9Mj+suc9Cf?= =?us-ascii?Q?/WE2zhMxGTxnnTacQSagCp5wddc/nlKDnMSnCtJIQMR2Y2rsf+ZHCdCqMPU5?= =?us-ascii?Q?NJwzU0rAaAhVX8Bqduht30w/lSY7TbLw=3D?= X-Microsoft-Antispam-Message-Info: F3aOupz9g4ogVdmEFgiohAhhaNc1hxCK+YOxBi5nFFKYSDnvn4WBRhR6+NsZLbeImabobCYAb0F2iNNu6jvRgLB9Xy2F4qFhMvYEHV98CLLp9bDZXSL2Et9hPby7dmJrbVOeNY6WRBge/9QYmy+SjPdHRlB45gNpo2GQ/fXmFvKPtSX1sL9Bf5O5Ga1/EfOL17iMhNsnug3nEwj0FIzbhedMSoFNa2E2XtihjYqfUfKXiNTEgajPPTzz+rkmDCwcMBuGcsu1RQtoO9putDhL6huY1lGcfuEGL/sCwLJwtAztTZNRoSphc5rRPpI89TmS4gMIr5VOJfQpVGEV0kNweg== X-Microsoft-Exchange-Diagnostics: 1; AM5PR0201MB2452; 6:RX4qBzsup9zDZavxnABls7iodhN4b+mwHgacoJ8siazaQZuSrnfkAr8o/dWhsgDTitxAcEaeOH+GnJkTT0Kf/sebhq/nWyxE7FbTB84JXOtgVVq0k83862pKhlxWQIu3x55w47yV52jNsL7GGN0GO9VU0YzJHrPUYdrbV4VeZWSN1/7RN2YFUSjkFeuJ4Pdf0DEZE9OL0PbGfFozUnaMgMVLttqEpmYG8ytkeYYbXjocMEZdcCIT0ad2EaU0eIicyHL1H8ddS0n/PlgyBMwylbbVV4WUYof4bpsE0xm7H9Qx30+vjythnoShrf8J+hAJ3J68PpSCkCE90JIrJWPO7NM+7obBIwM25itYjM7TviljcqTXw5Vz3CL8933k2VdvKzp+zPpeS/bCXZpjzIVOqTNA6iUVvog1iLB0YPuJtp+tKToLWQ/oN77kcGf+IX8yrvdAPQBLpt5fOe59pVu/4Q==; 5:nIak8/4ZOpERk92LAOvVJYyxizzorb+3zqyUUnUtxDVkSSvuEmvCaNAF6w10c/gMslLeWKUz2wYV8y4HhEIaZWtDUmPCM+kiD8Dxhb+CO8cF8Bcxm8FFOKHxh6DrHRgtlfdX1AL9/AlO1LNQLrlyAAb9HeSTmatXKwEpfuJzj1g=; 24:eCgGN8jFMIs+L0NI+Vlf4FdEOW+/HzTWXLWlcTb5F1mVzK6SJBlrexQUsIAeodzPNH32ZP4wAEueEop/YUqUUsOw9ND975Z6j/nH3hI3x/E= SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; AM5PR0201MB2452; 7:uLIjqAZatDGiT9djw/AMGsIdWh789aFubRcLQAq0nVPQ8plhtQorH5LmmdOwfbMRZ7SNibI6V7uo2FS3ZtI2IgVHdbTTOc7lLC3K1Xr4YK5V8+MSOq2ox/p+zkki36eh3rDPnGoXe8NgfVxfy5nwk5PVuXKxIAAv6/MCfI3ST0XWrSIr/N2i0W0NRPWOCuv7HWLq4Qizlomym/TA0ooVQoJ6GwbqZokVgbfZyRzmWokJJqnh/CfddDuylRpWGGg0 X-OriginatorOrg: axentia.se X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Jun 2018 05:18:27.9516 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c4bd7941-c7bb-48a5-e3c2-08d5d66d42a3 X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4ee68585-03e1-4785-942a-df9c1871a234 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR0201MB2452 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180620_011833_834772_FBB6E981 X-CRM114-Status: GOOD ( 15.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Crt Mori , Wolfram Sang , linux-iio@vger.kernel.org, Sekhar Nori , Jarkko Sakkinen , linux-i2c@vger.kernel.org, Peter Meerwald-Stadler , Peter Huewe , Michael Krufky , Lee Jones , Antti Palosaari , linux-samsung-soc@vger.kernel.org, Florian Fainelli , Kevin Hilman , Chunyan Zhang , Krzysztof Kozlowski , Jason Gunthorpe , Kukjin Kim , bcm-kernel-feedback-list@broadcom.com, linux-input@vger.kernel.org, Orson Zhai , Guenter Roeck , Haavard Skinnemoen , Arnd Bergmann , linux-media@vger.kernel.org, Lars-Peter Clausen , Gregory Fong , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, Baolin Wang , Greg Kroah-Hartman , Dmitry Torokhov , Hartmut Knaack , linux-integrity@vger.kernel.org, Brian Norris , Peter Rosin , Jonathan Cameron Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Locking the root adapter for __i2c_transfer will deadlock if the device sits behind a mux-locked I2C mux. Switch to the finer-grained i2c_lock_bus with the I2C_LOCK_SEGMENT flag. If the device does not sit behind a mux-locked mux, the two locking variants are equivalent. Signed-off-by: Peter Rosin Acked-by: Dmitry Torokhov --- drivers/input/touchscreen/rohm_bu21023.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/touchscreen/rohm_bu21023.c b/drivers/input/touchscreen/rohm_bu21023.c index bda0500c9b57..714affdd742f 100644 --- a/drivers/input/touchscreen/rohm_bu21023.c +++ b/drivers/input/touchscreen/rohm_bu21023.c @@ -304,7 +304,7 @@ static int rohm_i2c_burst_read(struct i2c_client *client, u8 start, void *buf, msg[1].len = len; msg[1].buf = buf; - i2c_lock_adapter(adap); + i2c_lock_bus(adap, I2C_LOCK_SEGMENT); for (i = 0; i < 2; i++) { if (__i2c_transfer(adap, &msg[i], 1) < 0) { @@ -313,7 +313,7 @@ static int rohm_i2c_burst_read(struct i2c_client *client, u8 start, void *buf, } } - i2c_unlock_adapter(adap); + i2c_unlock_bus(adap, I2C_LOCK_SEGMENT); return ret; }