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 944C7C4332F for ; Wed, 4 May 2022 11:57:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349159AbiEDMAx (ORCPT ); Wed, 4 May 2022 08:00:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38664 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231410AbiEDMAv (ORCPT ); Wed, 4 May 2022 08:00:51 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4666F18342; Wed, 4 May 2022 04:57:15 -0700 (PDT) X-UUID: 68ad077453d943dc954df963fc5c3163-20220504 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.4,REQID:b565527c-a0c4-4a30-8c39-ac9ef5bece4c,OB:0,LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:45,FILE:0,RULE:Release_Ham,ACT ION:release,TS:45 X-CID-INFO: VERSION:1.1.4,REQID:b565527c-a0c4-4a30-8c39-ac9ef5bece4c,OB:0,LOB: 0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:45,FILE:0,RULE:Release_Ham,ACTIO N:release,TS:45 X-CID-META: VersionHash:faefae9,CLOUDID:4eed8ab2-56b5-4c9e-8d83-0070b288eb6a,C OID:IGNORED,Recheck:0,SF:28|17|19|48,TC:nil,Content:0,EDM:-3,File:nil,QS:0 ,BEC:nil X-UUID: 68ad077453d943dc954df963fc5c3163-20220504 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1706728257; Wed, 04 May 2022 19:57:11 +0800 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Wed, 4 May 2022 19:57:10 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 4 May 2022 19:57:09 +0800 Received: from mtksdccf07 (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Wed, 4 May 2022 19:57:09 +0800 Message-ID: <332f8adec6601f97ab2814d06330883a251e41ec.camel@mediatek.com> Subject: Re: [PATCH V4 07/14] cpufreq: mediatek: Add .get function From: Rex-BC Chen To: Viresh Kumar CC: , , , , , , , , , , , , , , Date: Wed, 4 May 2022 19:57:09 +0800 In-Reply-To: <20220504082249.anrvkf2ssbxyzz5m@vireshk-i7> References: <20220422075239.16437-1-rex-bc.chen@mediatek.com> <20220422075239.16437-8-rex-bc.chen@mediatek.com> <20220425053548.72w2jh2g6lpzgz6g@vireshk-i7> <64c690e8edf493ec0a4a14e0fdaad2d8e88e6da7.camel@mediatek.com> <20220425100058.4kbvmpi63ygni6k5@vireshk-i7> <078b1f9b39690da98cbd3c4528ba28374a097083.camel@mediatek.com> <20220427031141.or2owu5wrh2cadfo@vireshk-i7> <346736a339bed576817179ded3795d61f71fa06a.camel@mediatek.com> <20220428114835.3ktimyz2tzzqdcbg@vireshk-i7> <27a5dddd91b3dcbd69f08c10108cdec808237ace.camel@mediatek.com> <20220504082249.anrvkf2ssbxyzz5m@vireshk-i7> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2022-05-04 at 13:52 +0530, Viresh Kumar wrote: > On 03-05-22, 19:33, Rex-BC Chen wrote: > > Our observation tells us cpufreq_online is setting only once at > > boot > > for one cpu cluster. > > But we can see the problem repeatly occurs once cpufreq_get is > > invoked. > > > > e.g. > > [ 71.154560] cpufreq: Warning: CPU frequency out of sync: cpufreq > > and > > timing core thinks of 500000, is 499999 kHz > > [ 71.155880] cpufreq: notification 0 of frequency transition to > > 499999 > > kHz > > [ 71.156777] cpufreq: notification 1 of frequency transition to > > 499999 > > kHz > > [ 71.187241] cpufreq: target for CPU 0: 500000 kHz, relation 0, > > requested 500000 kHz > > [ 71.188246] cpufreq: target_freq/policy->cur: 500000/499999 kHz > > Lemme know if this helps: > > https://lore.kernel.org/lkml/39e39a7d30c8ee6af81fb64670a330abeb87402e.1651652493.git.viresh.kumar@linaro.org/ > Hello Viresh, Thanks a lot! It helps to fix this issue. And I will drop this patch in the next version. BRs, Rex