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 4E60FC433F5 for ; Wed, 4 May 2022 17:08:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354702AbiEDRLe (ORCPT ); Wed, 4 May 2022 13:11:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356930AbiEDRJt (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 D0D294704A; Wed, 4 May 2022 09:56:30 -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 7D468B8279A; Wed, 4 May 2022 16:56:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30146C385A4; Wed, 4 May 2022 16:56:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1651683388; bh=Za0VdiC3YL/IFH8GD9TAZhUplfNPPkWz+O8jG/yfWG4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cAY/tld0AcVpVovLRtB8xCt5Wy3BRbJFuH8iWLa99CzM6/kaq6h/7jNZGq2ut5SNn lXlQUIyrJyk2LX43OIJZ8It0OuY6DDCwOnMCV0RUHyOoIJGeoZ2TE0F7DQVLHyGNGl JCmmAHIrm3wzVcsHDs26VO/3ic8zskBERpXN9GcM= 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 5.17 060/225] arm64: dts: meson: remove CPU opps below 1GHz for G12B boards Date: Wed, 4 May 2022 18:44:58 +0200 Message-Id: <20220504153115.521635638@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 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christian Hewitt [ Upstream commit 6c4d636bc00dc17c63ffb2a73a0da850240e26e3 ] Amlogic G12B 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: b96d4e92709b ("arm64: dts: meson-g12b: support a311d and s922x cpu operating points") Signed-off-by: Christian Hewitt Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20220210100638.19130-2-christianshewitt@gmail.com Signed-off-by: Sasha Levin --- .../boot/dts/amlogic/meson-g12b-a311d.dtsi | 40 ------------------- .../boot/dts/amlogic/meson-g12b-s922x.dtsi | 40 ------------------- 2 files changed, 80 deletions(-) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d.dtsi index d61f43052a34..8e9ad1e51d66 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d.dtsi @@ -11,26 +11,6 @@ cpu_opp_table_0: opp-table-0 { compatible = "operating-points-v2"; opp-shared; - opp-100000000 { - opp-hz = /bits/ 64 <100000000>; - opp-microvolt = <731000>; - }; - - opp-250000000 { - opp-hz = /bits/ 64 <250000000>; - opp-microvolt = <731000>; - }; - - opp-500000000 { - opp-hz = /bits/ 64 <500000000>; - opp-microvolt = <731000>; - }; - - opp-667000000 { - opp-hz = /bits/ 64 <667000000>; - opp-microvolt = <731000>; - }; - opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; opp-microvolt = <761000>; @@ -71,26 +51,6 @@ cpub_opp_table_1: opp-table-1 { compatible = "operating-points-v2"; opp-shared; - opp-100000000 { - opp-hz = /bits/ 64 <100000000>; - opp-microvolt = <731000>; - }; - - opp-250000000 { - opp-hz = /bits/ 64 <250000000>; - opp-microvolt = <731000>; - }; - - opp-500000000 { - opp-hz = /bits/ 64 <500000000>; - opp-microvolt = <731000>; - }; - - opp-667000000 { - opp-hz = /bits/ 64 <667000000>; - opp-microvolt = <731000>; - }; - opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; opp-microvolt = <731000>; diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi index 1e5d0ee5d541..44c23c984034 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi @@ -11,26 +11,6 @@ cpu_opp_table_0: opp-table-0 { compatible = "operating-points-v2"; opp-shared; - opp-100000000 { - opp-hz = /bits/ 64 <100000000>; - opp-microvolt = <731000>; - }; - - opp-250000000 { - opp-hz = /bits/ 64 <250000000>; - opp-microvolt = <731000>; - }; - - opp-500000000 { - opp-hz = /bits/ 64 <500000000>; - opp-microvolt = <731000>; - }; - - opp-667000000 { - opp-hz = /bits/ 64 <667000000>; - opp-microvolt = <731000>; - }; - opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; opp-microvolt = <731000>; @@ -76,26 +56,6 @@ cpub_opp_table_1: opp-table-1 { compatible = "operating-points-v2"; opp-shared; - opp-100000000 { - opp-hz = /bits/ 64 <100000000>; - opp-microvolt = <751000>; - }; - - opp-250000000 { - opp-hz = /bits/ 64 <250000000>; - opp-microvolt = <751000>; - }; - - opp-500000000 { - opp-hz = /bits/ 64 <500000000>; - opp-microvolt = <751000>; - }; - - opp-667000000 { - opp-hz = /bits/ 64 <667000000>; - opp-microvolt = <751000>; - }; - opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; opp-microvolt = <771000>; -- 2.35.1