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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA2F3EB64DD for ; Fri, 28 Jul 2023 23:06:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231486AbjG1XG1 (ORCPT ); Fri, 28 Jul 2023 19:06:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229802AbjG1XG0 (ORCPT ); Fri, 28 Jul 2023 19:06:26 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2A112682 for ; Fri, 28 Jul 2023 16:05:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1690585538; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UYKoF8Ks1Q67e6cOSRG114BapfSWNUAmHuoWgV7fg1k=; b=cj/24EPTTGhTtO1Mc1Sl1sYmbMADX9CnX8xE+78rnEXujgM0PNf1ahek3evvzlj52AqwgR vSzIdXnNjLKRVLCI55ec7Np1tmSaGqsf+/iI3+12zwLJrTAUr6Nfjdv7xedQO3PjfZgX4k e2UTlegGr/hRdSpL+UOdFsrYYIXA1Vg= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-479-RxyAgDt5Mqq-PKEHAUu7Rg-1; Fri, 28 Jul 2023 19:05:37 -0400 X-MC-Unique: RxyAgDt5Mqq-PKEHAUu7Rg-1 Received: by mail-wr1-f72.google.com with SMTP id ffacd0b85a97d-3176ace3f58so1430493f8f.0 for ; Fri, 28 Jul 2023 16:05:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690585536; x=1691190336; h=content-transfer-encoding:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UYKoF8Ks1Q67e6cOSRG114BapfSWNUAmHuoWgV7fg1k=; b=DcOVXti20BGPLpjNPo4NhYhMi3STSwxvcJB+RzteGHUG9TntETDGV5yxbAlL1BAn1F zRQ7KrVowL05u982M8K2Y2MncRMJgtSFHvvmErmc4Vcl8NSh/65uwnmy/3Pbfx0k1Rz/ //ySOGe4nkG8l2ixYYffmVdhxzgaMepnQzU4dNcJ58z9AsfxSCl2ikj1HQKl4QpoMMud 4iJ7RIeDYo/ZeEiYklE6ii2q7D4+k/ix9T2Sn5KSc1W/eI8DIhLLn6Fkgk+SWWfIHOnd B8Hs4aciOoh3h1N0ezWo4XyWh7aPDOF9jz0ylJeVmYDMv7Ev45Niad5/Sm4uloAPfiYj ARlg== X-Gm-Message-State: ABy/qLYUYSAlppodPe3w+4Ir+wpHCFGxWlE3TSrVkUi0F6qMSb918uzT i+nipvM5/bAqNQIcHTJR1+uadMMW3+CFR2DkoI3TZ6mZ9rop1X/AHio3RSLvnNANFsxG0j1wRRc 9rQwD/k6/Aa4yQC8K1YLVwA== X-Received: by 2002:a5d:570f:0:b0:317:6f5b:2fb7 with SMTP id a15-20020a5d570f000000b003176f5b2fb7mr2789576wrv.57.1690585535957; Fri, 28 Jul 2023 16:05:35 -0700 (PDT) X-Google-Smtp-Source: APBJJlGaqeup1KKkFNHEx1uCh4LA2D3TrUL7PCcqpRPBbZgzdQVEdE5dFoZXTmOfccIkNlSYxmwzdA== X-Received: by 2002:a5d:570f:0:b0:317:6f5b:2fb7 with SMTP id a15-20020a5d570f000000b003176f5b2fb7mr2789560wrv.57.1690585535608; Fri, 28 Jul 2023 16:05:35 -0700 (PDT) Received: from localhost (205.pool92-176-231.dynamic.orange.es. [92.176.231.205]) by smtp.gmail.com with ESMTPSA id y18-20020adff152000000b0031784ac0babsm4768741wro.28.2023.07.28.16.05.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Jul 2023 16:05:35 -0700 (PDT) From: Javier Martinez Canillas To: Maya Matuszczyk , Heiko Stuebner Cc: Peter Geis , linux-kernel@vger.kernel.org, Peter Robinson , Caleb Connolly , Jarrah Gosbell , Krzysztof Kozlowski , Martijn Braam , Ondrej Jirman , Rob Herring , Tom Fitzhenry , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH] arm64: dts: rockchip: Change serial baud rate for Pinephone Pro to 1.5 MB In-Reply-To: References: <20230403175937.2842085-1-javierm@redhat.com> <3797122.KgjxqYA5nG@diego> <87pm4kuanl.fsf@minerva.mail-host-address-is-not-set> <4495367.TLkxdtWsSY@phil> Date: Sat, 29 Jul 2023 01:05:34 +0200 Message-ID: <87fs57y6v5.fsf@minerva.mail-host-address-is-not-set> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Maya Matuszczyk writes: > Hi Heiko > > pt., 28 lip 2023 o 21:00 Heiko Stuebner napisa=C5=82(a): >> [...] >> So far people only reported "breaks my setup". I'm in a pickle here ;-) . >> Without anybody saying "I want to also move into this direction" I really >> feel I should not merge a patch that breaks other peoples setups. > > Well, I'd prefer 1.5M baud rate as it is more consistent with other Rockc= hip > boards and it makes for a much more usable terminal experience when > logged in, it also doesn't affect boot times when serial is enabled with a > high loglevel and console on serial as 115200 does. > > Though I'm just fine with using kernel's cmdline to set a baud rate. > Same, but also what Peter mentioned in this thread: Peter Geis writes: > > Good Morning Heiko, > > The 1.5M baud is default because the clock structure on rockchip > devices does not allow a clean 115200 baud. By attempting to force > 115200, it will always be slightly off (either low or high depending > on how the driver decided to round). If this actually causes any > problems is the subject of much debate. > > Very Respectfully, > Peter Geis > So that's another argument for setting it to 1.5M. Anyways, I'll just stop asking for this and set my cmdline to a non-default baud rate and move on. I was just asking in case there was a decision made on this topic. --=20 Best regards, Javier Martinez Canillas Core Platforms Red Hat