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[2620:137:e000::1:20]) by mx.google.com with ESMTP id w6-20020aa79a06000000b006513fe5673csi2523154pfj.169.2023.06.16.04.29.28; Fri, 16 Jun 2023 04:29:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@denx.de header.s=phobos-20191101 header.b=OdtVBoEy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=denx.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345482AbjFPLQM (ORCPT + 99 others); Fri, 16 Jun 2023 07:16:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244499AbjFPLQI (ORCPT ); Fri, 16 Jun 2023 07:16:08 -0400 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE137AC; Fri, 16 Jun 2023 04:16:04 -0700 (PDT) Received: from [127.0.0.1] (p578adb1c.dip0.t-ipconnect.de [87.138.219.28]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 0649086103; Fri, 16 Jun 2023 13:16:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1686914162; bh=OxZM2+EnYD+j/heb84+JUmtDueMa5fTTJYm2Q9ArZLo=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=OdtVBoEyI1CgdsJi57N5xLA7gibjHuzF/2ckQASeeBmWXHLiMHjf5R9XBphtw8qyP jliI2uC/jKwJHSXKWwRvqqT8SwVoHa42Fy2kYqu/iqK0hgowHUqdwzKkK73EX3+tgA dE+zREh0tGORy2hC2/3V8lYxOGFVmBtdW+6K0yvtpszYxahTig5m4fDTlmEWeI5Lj7 M25/Qcuo6FukPzGAs3H7IjR1LTbonrbjazQhjtA7M3dZ+BbRBPt+phjMiUO6Bu8Tea KdpqBKIA7X/HjL4Wp/wrn0kLquwWix8nRNqZ60W/NkeUx+umFWZ1Kf+5Nt3Xv8aFm9 dQ3p4b7wmW2PA== Message-ID: Date: Fri, 16 Jun 2023 13:16:01 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 Subject: Re: [PATCH] tty: serial: imx: fix rs485 rx after tx Content-Language: en-US To: Martin Fuzzey , linux-serial@vger.kernel.org Cc: Greg Kroah-Hartman , Shawn Guo , Fabio Estevam , linux-kernel@vger.kernel.org References: <20230616104838.2729694-1-martin.fuzzey@flowbird.group> From: Marek Vasut In-Reply-To: <20230616104838.2729694-1-martin.fuzzey@flowbird.group> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/16/23 12:47, Martin Fuzzey wrote: > Since commit 79d0224f6bf2 ("tty: serial: imx: Handle RS485 DE signal > active high") RS485 reception no longer works after a transmission. This RS485 is just a gift that keeps on giving, sigh. I'll dig into this in a few days as time permits.