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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id u190-20020a6385c7000000b00380a9b0136bsi503350pgd.396.2022.03.08.17.52.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Mar 2022 17:52:18 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D52B41E521F; Tue, 8 Mar 2022 16:27:23 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230345AbiCHMXY (ORCPT + 99 others); Tue, 8 Mar 2022 07:23:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346758AbiCHMXW (ORCPT ); Tue, 8 Mar 2022 07:23:22 -0500 Received: from bmailout1.hostsharing.net (bmailout1.hostsharing.net [IPv6:2a01:37:1000::53df:5f64:0]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D901AB; Tue, 8 Mar 2022 04:22:25 -0800 (PST) Received: from h08.hostsharing.net (h08.hostsharing.net [IPv6:2a01:37:1000::53df:5f1c:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.hostsharing.net", Issuer "RapidSSL TLS DV RSA Mixed SHA256 2020 CA-1" (verified OK)) by bmailout1.hostsharing.net (Postfix) with ESMTPS id D06FE300002A5; Tue, 8 Mar 2022 13:22:20 +0100 (CET) Received: by h08.hostsharing.net (Postfix, from userid 100393) id C27944A8C8; Tue, 8 Mar 2022 13:22:20 +0100 (CET) Date: Tue, 8 Mar 2022 13:22:20 +0100 From: Lukas Wunner To: Ilpo =?iso-8859-1?Q?J=E4rvinen?= Cc: Andy Shevchenko , "open list:SERIAL DRIVERS" , Jiri Slaby , Greg Kroah-Hartman , Linux Kernel Mailing List , Johan Hovold , Heikki Krogerus , Raymond Tan , Heiko Stuebner Subject: Re: [PATCH 1/7] serial: 8250_dwlib: RS485 HW half duplex support Message-ID: <20220308122220.GA24694@wunner.de> References: <20220302095606.14818-1-ilpo.jarvinen@linux.intel.com> <20220302095606.14818-2-ilpo.jarvinen@linux.intel.com> <20220306184857.GA19394@wunner.de> <20220307191854.GA27748@wunner.de> <6931d6ad-7520-b585-a8ba-35349e730bb@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <6931d6ad-7520-b585-a8ba-35349e730bb@linux.intel.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no 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 Tue, Mar 08, 2022 at 02:16:56PM +0200, Ilpo J?rvinen wrote: > The SoC also has a pin to select between RS485 and RS232. With a combo > transceiver, TCR-based heuristic just runs into the same problems as the > version-based one did. I thought this was about detecting whether hardware-assisted DE assertion may be used (versus software-controlled), not about whether to enable RS-485 mode. Right? Thanks, Lukas