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[2620:137:e000::1:20]) by mx.google.com with ESMTP id k21-20020a50ce55000000b00427e39bf3d4si1653110edj.480.2022.05.05.06.31.00; Thu, 05 May 2022 06:31:24 -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=@linuxfoundation.org header.s=korg header.b=CR0sGPUO; 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=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230140AbiEDRcs (ORCPT + 99 others); Wed, 4 May 2022 13:32:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356933AbiEDRJt (ORCPT ); Wed, 4 May 2022 13:09:49 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E240947391; Wed, 4 May 2022 09:56:31 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 928A8B82795; Wed, 4 May 2022 16:56:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31289C385AF; Wed, 4 May 2022 16:56:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1651683389; bh=bOEnfUtlCzKilcQVNdgNDkraRV1l4mxr/wnzQyI8f7Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CR0sGPUOSiwBFOOH3kLHJIKTpB8I3WZQFI8SINpeL6/H2s0UvzrJSQfBl/TssbYIR 9sGJzrYdhCiR2l94Y6F4OxLgM6yLa0WAGpDsZEx4fdO9ii/z2v/xxrl9FjQdZuwZ68 t8v6Y9D3cAArvrZEz5Mjpr/wd11+FucClTJ1De7k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christian Hewitt , Neil Armstrong , Sasha Levin Subject: [PATCH 5.17 061/225] arm64: dts: meson: remove CPU opps below 1GHz for SM1 boards Date: Wed, 4 May 2022 18:44:59 +0200 Message-Id: <20220504153115.616429094@linuxfoundation.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220504153110.096069935@linuxfoundation.org> References: <20220504153110.096069935@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-7.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE 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 From: Christian Hewitt [ Upstream commit fd86d85401c2049f652293877c0f7e6e5afc3bbc ] Amlogic 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 and other distro sources also remove the 500/667MHz points. Unless all 100-667Mhz opps are removed or the CPU governor forced to performance stalls are still observed, so let's remove them to improve stability and uptime. Fixes: 3d9e76483049 ("arm64: dts: meson-sm1-sei610: enable DVFS") Signed-off-by: Christian Hewitt Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20220210100638.19130-3-christianshewitt@gmail.com Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi index 3d8b1f4f2001..78bdbd2ccc9d 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi @@ -95,26 +95,6 @@ cpu_opp_table: opp-table { compatible = "operating-points-v2"; opp-shared; - opp-100000000 { - opp-hz = /bits/ 64 <100000000>; - opp-microvolt = <730000>; - }; - - opp-250000000 { - opp-hz = /bits/ 64 <250000000>; - opp-microvolt = <730000>; - }; - - opp-500000000 { - opp-hz = /bits/ 64 <500000000>; - opp-microvolt = <730000>; - }; - - opp-667000000 { - opp-hz = /bits/ 64 <666666666>; - opp-microvolt = <750000>; - }; - opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; opp-microvolt = <770000>; -- 2.35.1