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 X-Spam-Level: X-Spam-Status: No, score=-10.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50E49C433E0 for ; Wed, 3 Mar 2021 17:48:57 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9EAB664DE8 for ; Wed, 3 Mar 2021 17:48:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9EAB664DE8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=v/GNXQy/+tCwbOtfi9rm36st/1m4re4R4FMcpvi5F1c=; b=CbLr3NMCbuI5tmLF1La3W7wZl J+6mGkAOv4OQrv2n0izerxIghHPISHpiiZHIQp/LElrCBWyJNuaHSUQ6Rj/Zp8z8DuW82oFWzbB8L dQMoOnqikOYPwNpuLp0kWpnPvwUPjyUnrC/ZbOYx+sT4TJTBdWO5DxQlNxWOYan0oVBK8iJK3zH7F +j1DZWZNpQnBbSDLW/n6EoC+bBRcjL9Vmhq3UV0dK43dJe9b00+WEOxH/B8ePLeUIlvd8xihJ1xhA mRNbERSP2bf1oI5whgvGFZoMBDfwaojc+jq3BzuZh/7T9BfX7bXd5t/IlPzFzbxDR8WC1/o+Cvira kH2uAC3Cg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lHVa1-005rqj-V9; Wed, 03 Mar 2021 17:46:38 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lHSwM-005Fnb-Qo for linux-arm-kernel@desiato.infradead.org; Wed, 03 Mar 2021 14:57:31 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=y/F1ukuAHOWo0SGlFbLlW+SzzoIzlMOCKm3QeJSwdU4=; b=QKUItnlN5bV3Klgg4IPqN/MKsp KfdVOt0fHQy1SALC+QkqqB9gj3rtHGYVeY3GaHE9PD6fWX0vBtT9KGXSCX2J+rZddQeq+pYPN4Ycq ztRm+02jJJZhZNqfi8qBzxUZEs1i/ux9O7EKzB21XAs1pBEVpvccXTqKOJKLuvpMFjwWlGhHOIZAa M52fjilKnT2YDIwyY9pYm25/7iwCFw7EcUawcifsVSsnbuzVDjA3Rs7TR+vezGJR1cZ7PTs/M45kP VuAtZ5ACHDRS4+Q/aGP3axRx10NegjC3AuRaCEWqQJ02ziFfgR/dz8neDYdq61SFo2XsVeSmIiA0B pMx+51HA==; Received: from mail.kernel.org ([198.145.29.99]) by casper.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lHQue-002bQh-Ts for linux-arm-kernel@lists.infradead.org; Wed, 03 Mar 2021 12:47:41 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1396364ED4; Wed, 3 Mar 2021 12:47:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614775651; bh=nPhaVQlWGiOqRGSZBMc6cCnJ6Xmgmr0T0g4FiSqYVOw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tHXZnWwYrnXPKcd0bqnAPH+IaD4ICiamWSwHWTyJX5g0G0PMaVm35cWNrSsLw7UrI H3sezHk9zAfc6BRNKGi8vrB7e+IrR0LurHXDNDX2MIyu5kFBifUU7raxel95aCVXM+ mN1VCZbKJSr2fmiy8DwHq9YeUl2+lz2Cf5i+oeedPlSO2NWMCGMHmPt32/FAm2XWcL IXbpdfRdc9cUBcvKEgm44543hoZux9+DZH8e/uCeGiZTlOgr+kn1xgjtq580GzSri0 k1NmFXcHtet9nz32zyZss14XbWO2+XqgZbyUb+iQBjatlCE2Q8Giul/TnS5O83cufX LrLu0fe15glEg== Date: Wed, 3 Mar 2021 20:47:25 +0800 From: Shawn Guo To: Dima Azarkin Cc: Rob Herring , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Christian Hewitt Subject: Re: [PATCH] ARM: dts: imx6qdl-wandboard: add scl/sda gpios definitions for i2c bus recovery Message-ID: <20210303124722.GF15865@dragon> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210303_124740_756217_1B1CD670 X-CRM114-Status: UNSURE ( 8.96 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, Jan 31, 2021 at 06:54:46PM +0300, Dima Azarkin wrote: > The i2c bus on imx6qdl-wandboard has intermittent issues where SDA can freeze > on low level at the end of transaction so the bus can no longer work. This > impacts reading of EDID data leading to incorrect TV resolution and no audio. > > This scenario is improved by adding scl/sda gpios definitions to implement the > i2c bus recovery mechanism. > > Signed-off-by: Dima Azarkin Applied, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel