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 56D2FC76188 for ; Wed, 5 Apr 2023 17:14:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229516AbjDEROV (ORCPT ); Wed, 5 Apr 2023 13:14:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33258 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229544AbjDEROU (ORCPT ); Wed, 5 Apr 2023 13:14:20 -0400 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1B37A9B; Wed, 5 Apr 2023 10:14:19 -0700 (PDT) Received: from [2a02:8108:8980:2478:8cde:aa2c:f324:937e]; authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1pk6i9-0003OV-71; Wed, 05 Apr 2023 19:14:17 +0200 Message-ID: Date: Wed, 5 Apr 2023 19:14:16 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Subject: Re: [PATCH 1/3] ARM: dts: meson: Fix the UART compatible strings Content-Language: en-US, de-DE To: Martin Blumenstingl , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, =?UTF-8?Q?Ricardo_Ca=c3=b1uelo?= References: <20211227180026.4068352-1-martin.blumenstingl@googlemail.com> <20211227180026.4068352-2-martin.blumenstingl@googlemail.com> <20230405132900.ci35xji3xbb3igar@rcn-XPS-13-9305> From: Thorsten Leemhuis In-Reply-To: <20230405132900.ci35xji3xbb3igar@rcn-XPS-13-9305> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1680714859;c2d3ee1d; X-HE-SMSGID: 1pk6i9-0003OV-71 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 05.04.23 15:29, Ricardo Cañuelo wrote: > Hi Martin, > > On lun 27-12-2021 19:00:24, Martin Blumenstingl wrote: >> The dt-bindings for the UART controller only allow the following values >> for Meson6 SoCs: >> - "amlogic,meson6-uart", "amlogic,meson-ao-uart" >> - "amlogic,meson6-uart" >> >> Use the correct fallback compatible string "amlogic,meson-ao-uart" for >> AO UART. Drop the "amlogic,meson-uart" compatible string from the EE >> domain UART controllers. > > KernelCI detected that this patch introduced a regression in > stable-rc/linux-4.14.y on a meson8b-odroidc1. > After this patch was applied the tests running on this platform don't > show any serial output. > > This doesn't happen in other stable branches nor in mainline, but 4.14 > hasn't still reached EOL and it'd be good to find a fix. > > Here's the bisection report: > https://groups.io/g/kernelci-results/message/40147 > > KernelCI info: > https://linux.kernelci.org/test/case/id/64234f7761021a30b262f776/ Wait, what? A patch (5225e1b87432 ("ARM: dts: meson: Fix the UART compatible strings")) that was merged for v5.17-rc4 and is not in the list of patches that were in 4.14.312-rc1 (https://lore.kernel.org/all/20230403140351.636471867@linuxfoundation.org/ ) is meant to suddenly cause this? How is this possible? Am I totally on the wrong track here and misunderstanding something, or is this a bisection that went horribly sideways? Ciao, Thorsten > Test log: > https://storage.kernelci.org/stable-rc/linux-4.14.y/v4.14.311-43-g88e481d604e9/arm/multi_v7_defconfig/gcc-10/lab-baylibre/baseline-meson8b-odroidc1.html > > Thanks, > Ricardo > > #regzbot introduced: 5225e1b87432dcf0d0fc3440824b91d04c1d6cc1 > #regzbot title: no serial output in KernelCI tests on meson8b-odroidc1 > for stable-4.14 > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel