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[23.128.96.19]) by mx.google.com with ESMTPS id mj10-20020a17090b368a00b001c78aa461casi855988pjb.93.2022.04.04.19.53.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Apr 2022 19:53:55 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; dkim=pass header.i=@baylibre-com.20210112.gappssmtp.com header.s=20210112 header.b=VNyJRcdN; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 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 29183462B2F; Mon, 4 Apr 2022 18:18:21 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345133AbiDDHzg (ORCPT + 99 others); Mon, 4 Apr 2022 03:55:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233822AbiDDHze (ORCPT ); Mon, 4 Apr 2022 03:55:34 -0400 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DFB8B60EA for ; Mon, 4 Apr 2022 00:53:38 -0700 (PDT) Received: by mail-wr1-x431.google.com with SMTP id u3so13151735wrg.3 for ; Mon, 04 Apr 2022 00:53:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Va1uiLP023t5MihYO/Flcr7OZNL1vNKKp5c2ZjT5AYw=; b=VNyJRcdNveWkpMXVdciF4KakpZiiW50ocgP5YSME8fh3xUgRcRBcJU/rD+Wnfdxx7A Y7ikB5gYpemDjSLgjNyMpJ2cUbHrIADnCRs7A4HChUxwDg4Pi7+7Jfo6PVhYLmpQYnVC BOT9OCrzMtsF8hBQlkAjpG7/k5lQj0+JRYDfjIqkiwquBvj18clVBVISCvycxJchL9o5 aqk4YZPSZXPIfDGcudm87F4kqJClWQ2dfU9noSroszqA1FARCGGehMpA+Hi8RVolfeX+ OxU/jOSla+tZI4ohJ6j/bPmNuBGO3c8WsNOU2T1J0Fhg+v6cjONZW7rMVSpJYyXaIL1u k3Zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Va1uiLP023t5MihYO/Flcr7OZNL1vNKKp5c2ZjT5AYw=; b=mz2io0y2wrXSbsBwZao49we2CmEsbaUS8uvAGcxEjKb78iyO9iYj20QglGLlanJHQQ wxTsST+juXds3Ehto0pd/PIsI89Pvs5/lsrYzSWKYuN9L3A5QMj7SzE0En1OY/waR/Xj T9gUqMjN4xREA/Ubbqw4y/qa7kxtjXLpKpJ2DKGMM5ozcajGrwfKw3Z6fh/xM/8okluc 422LcSVOtVay2T1yuBT5S60NGinAdbq+atWtpRRQrs9jEVQDnF9aDCNAL61jInGsqj9h kG4ClWzPr4Hu3etKOIhz1kwfZBrzxHx7ubG+9qXeFh49fNlJkAPYeRUk8GuOxIsNF5Cd thmg== X-Gm-Message-State: AOAM533GSAIbDeR8tSV+bkDGEHGcJb17q2kwdUUg6kD8oXUxkvtU/LBY MAfVnZanaVbhYPq/0LQA/fOIAA== X-Received: by 2002:adf:cd11:0:b0:206:1108:ebc1 with SMTP id w17-20020adfcd11000000b002061108ebc1mr2878589wrm.33.1649058817433; Mon, 04 Apr 2022 00:53:37 -0700 (PDT) Received: from localhost.localdomain ([2001:861:44c0:66c0:1add:1b28:2457:eb46]) by smtp.gmail.com with ESMTPSA id a1-20020a056000188100b002041a652dfdsm8510186wri.25.2022.04.04.00.53.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Apr 2022 00:53:36 -0700 (PDT) From: Neil Armstrong To: linux-arm-kernel@lists.infradead.org, Kevin Hilman , linux-amlogic@lists.infradead.org, Rob Herring , Mark Rutland , Christian Hewitt , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: Neil Armstrong Subject: Re: [PATCH v2 0/2] arm64: dts: meson: remove CPU opps below 1GHz for G12B/SM1 Date: Mon, 4 Apr 2022 09:53:35 +0200 Message-Id: <164905879796.1795914.1262665444857869291.b4-ty@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220210100638.19130-1-christianshewitt@gmail.com> References: <20220210100638.19130-1-christianshewitt@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,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 Hi, On Thu, 10 Feb 2022 10:06:36 +0000, Christian Hewitt wrote: > Amlogic G12B and SM1 devices experience CPU stalls and random board > wedges when the system idles and CPU cores clock down to lower opp > points. Recent vendor kernels include a change to remove 100-250MHz > (with no explanation) [0] but other downstream sources also remove > the 500/667MHz points (also with no explanation). Unless 100-667Mhz > opps are removed or the CPU governor forced to performance, stalls > are observed, so let's remove them an improve stability/uptime. > > [...] Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (v5.18/fixes) [1/2] arm64: dts: meson: remove CPU opps below 1GHz for G12B boards https://git.kernel.org/amlogic/c/6c4d636bc00dc17c63ffb2a73a0da850240e26e3 [2/2] arm64: dts: meson: remove CPU opps below 1GHz for SM1 boards https://git.kernel.org/amlogic/c/fd86d85401c2049f652293877c0f7e6e5afc3bbc -- Neil