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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B51FBC43458 for ; Thu, 2 Jul 2026 15:53:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Date:Cc:To:From :Subject:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8QPQN776u8pNnifYQMrCaM/NOh8UOt440RxwMKhi7fk=; b=glrt09wwakwKpQRFuSIrzJxFtX +svXeNFjAolUV9R6yvbdqcI9WfTK4rIAMtFQ0DnZt0RYXxvz5P8ymHNeNk9X8jlE6h2NcUhyn+/7m 45Snm2eTaAvQMwHLYl6t+vWfJWay9rCOE1GrmhMw8HzXzhRI2anmtIbOcuRMqodbQ6Robjf8nLT0P 0v7bFC/eH8O4cA0GQtd+cJxEJXzr4QtmYKNDt9YcxesBsGoTM2AVM9Tw11mvfTcJnQ1Xlac6WUPLV 8b5ois2c9RCCteKjrcss7iqtMRdMTBMcth6QQMGx7AA9+vkPNwTYGf/34rZkLgEESyFE+YbHEsfHl iEA8KtZg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfJjY-00000004soM-2zg8; Thu, 02 Jul 2026 15:53:48 +0000 Received: from mx1.white.stw.pengutronix.de ([2a0a:edc0:0:b01:1d::107]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfJjV-00000004snb-3DU8 for linux-arm-kernel@lists.infradead.org; Thu, 02 Jul 2026 15:53:47 +0000 Received: from drehscheibe.grey.stw.pengutronix.de (drehscheibe.grey.stw.pengutronix.de [IPv6:2a0a:edc0:0:c01:1d::a2]) (Authenticated sender: relay-from-drehscheibe.grey.stw.pengutronix.de) by mx1.white.stw.pengutronix.de (Postfix) with ESMTPSA id 22CDE202631; Thu, 02 Jul 2026 17:53:44 +0200 (CEST) Received: from lupine.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::4e] helo=lupine) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wfJjU-005lgD-0C; Thu, 02 Jul 2026 17:53:44 +0200 Received: from pza by lupine with local (Exim 4.98.2) (envelope-from ) id 1wfJjT-00000000Feq-44uq; Thu, 02 Jul 2026 17:53:43 +0200 Message-ID: <4fa5149db18bfac88780382cf8d2d6ee18470c71.camel@pengutronix.de> Subject: Re: [PATCH v3 1/1] reset: imx7: Correct polarity of MIPI CSI resets on i.MX8MQ From: Philipp Zabel To: robby.cai@oss.nxp.com, Frank.Li@nxp.com, s.hauer@pengutronix.de, festevam@gmail.com Cc: krzk+dt@kernel.org, andrew.smirnov@gmail.com, kernel@pengutronix.de, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, aisheng.dong@nxp.com, guoniu.zhou@nxp.com Date: Thu, 02 Jul 2026 17:53:43 +0200 In-Reply-To: <20260619073115.3778313-1-robby.cai@oss.nxp.com> References: <20260619073115.3778313-1-robby.cai@oss.nxp.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2-0+deb13u1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260702_085345_955654_DC231624 X-CRM114-Status: UNSURE ( 7.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fr, 2026-06-19 at 15:31 +0800, robby.cai@oss.nxp.com wrote: > From: Robby Cai >=20 > On i.MX8MQ, the MIPI CSI reset lines are active-low and not self-clearing= . > Writing '0' asserts reset and it remains asserted until explicitly > deasserted by software. >=20 > This driver previously treated the MIPI CSI reset signals as active-high, > which led to incorrect reset assert/deassert sequencing. This issue was > exposed by commit 6d79bb8fd2aa ("media: imx8mq-mipi-csi2: Explicitly > release reset"). >=20 > Fix this by reflecting the correct reset polarity and ensuring proper > reset handling. [...] Applied to reset/fixes, thanks! [1/1] reset: imx7: Correct polarity of MIPI CSI resets on i.MX8MQ https://git.kernel.org/pub/scm/linux/kernel/git/pza/linux.git/commit/= ?id=3D71827776667f regards Philipp