From patchwork Thu May 5 11:52:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmV4LUJDIENoZW4gKOmZs+afj+i+sCk=?= X-Patchwork-Id: 12839457 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 19D80C433F5 for ; Thu, 5 May 2022 12:04:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=wpXQWIW2fTe+/f/KafChko5m7Oo0kDFe87PBiAebYdg=; b=AeCrWAdK8A5FvN jhYY+XjoAF4677KTChZ6eaLJm40ojD7OCUyasOp5Z8F0By6lBcgGJywCD+QJ4o0Zf0ylBTT7vqnof gOlGNsL0L5JcWxv7khYDrFt3M7UDBz8gzkQh1OLldQNDpGnlUwF4JDsPOqILHqN6vFlc3VKt4smaN eQFlRBi4+vYQ6N0pwEkboZd4/sPjHyS7wWfG8a+MGArJVD5Uazm3RsF5OfdFi29eSzfVLu1kMo3Dv AxpJnQEwmpine2OndEpj/DvkTMounvGTNKUx8MPsxLTa1zzqrnNG4sAR//CIQMHrAzf/5SW72e2r9 t9qPfxXngG4G94hzvx+A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nmaCc-00Fe6b-Qs; Thu, 05 May 2022 12:03:27 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nmaBv-00Fdm1-Sn; Thu, 05 May 2022 12:02:45 +0000 X-UUID: 7ab202aa278342a48f8666bc6b78f0d3-20220505 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.4, REQID:38ac349a-c178-4253-bce6-5798811be5fa, OB:0, LO B:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,RULE:Release_Ham,ACTI ON:release,TS:0 X-CID-META: VersionHash:faefae9, CLOUDID:011d5216-2e53-443e-b81a-655c13977218, C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,File:nil,QS:0,BEC:nil X-UUID: 7ab202aa278342a48f8666bc6b78f0d3-20220505 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1218736965; Thu, 05 May 2022 05:02:32 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 May 2022 04:52:29 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) 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; Thu, 5 May 2022 19:52:28 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 5 May 2022 19:52:27 +0800 From: Rex-BC Chen To: , , , , CC: , , , , , , , , , , , Rex-BC Chen Subject: [PATCH v6 00/10] cpufreq: mediatek: Cleanup and support MT8183 and MT8186 Date: Thu, 5 May 2022 19:52:16 +0800 Message-ID: <20220505115226.20130-1-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220505_050243_972922_D6825205 X-CRM114-Status: GOOD ( 13.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Cpufreq is a DVFS driver used for power saving to scale the clock frequency and supply the voltage for CPUs. This series do some cleanup for MediaTek cpufreq drivers and add support for MediaTek SVS[2] and MediaTek CCI devfreq[3] which are supported in MT8183 and MT8186. Changes for v6: 1. Reorder patches in this series. 2. Add a new patch to do unregister platform device. 3. Modify drivers from maintainer's advice. Changes for v5: 1. Modify the description for the reason we need to use mediatek,cci. 2. Drop [07/14] cpufreq: mediatek: Add .get function. Changes for V4: 1. Revise drivers from reviewers' suggestion. 2. Fix name of opp table issue. Changes for V3: 1. Rebased to linux-next-20220414. 2. Drop accepted patches. 3. Drop "cpufreq: mediatek: Use maximum voltage in init stage" because we make sure the voltage we set is safe for both mediatek cci and cpufreq. 4. Rename cci property to mediatek,cci. 5. Adjust order of cleanup patches. 6. Add new patches for cleanup, handle infinite loop and MT8183 dts. 7. Revise drivers from reviewers' suggestion. 8. Revise commit message of some patches to avoid confusion and misunderstand. 9. Revise "cpufreq: mediatek: Link CCI device to CPU". We do not return successful to pretend we set the target frequency done when cci is not ready. Instead, we find and set a safe voltage so that we can set the target cpufrequency. Changes for V2: 1. Drop the modification of transforming cpufreq-mediatek into yaml and only add the MediaTek CCI property for MediaTek cpufreq. 2. Split the original patches into several patches. Reference series: [1]: V1 of this series is present by Jia-Wei Chang. https://lore.kernel.org/all/20220307122151.11666-1-jia-wei.chang@mediatek.com/ [2]: The MediaTek CCI devfreq driver is introduced in another series. https://lore.kernel.org/all/20220425125546.4129-1-johnson.wang@mediatek.com/ [3]: The MediaTek SVS driver is introduced in another series. https://lore.kernel.org/all/20220420102044.10832-1-roger.lu@mediatek.com/ Jia-Wei Chang (2): cpufreq: mediatek: Refine mtk_cpufreq_voltage_tracking() cpufreq: mediatek: Add support for MT8186 Rex-BC Chen (8): dt-bindings: cpufreq: mediatek: Add MediaTek CCI property cpufreq: mediatek: Add platform_device_unregister when driver exit cpufreq: mediatek: Move voltage limits to platform data cpufreq: mediatek: Add opp notification support cpufreq: mediatek: Link CCI device to CPU arm64: dts: mediatek: Add opp table and clock property for MT8183 cpufreq arm64: dts: mediatek: Add MediaTek CCI node for MT8183 arm64: dts: mediatek: Add mediatek,cci property for MT8183 cpufreq .../bindings/cpufreq/cpufreq-mediatek.txt | 7 + arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 36 ++ .../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 4 + arch/arm64/boot/dts/mediatek/mt8183.dtsi | 285 +++++++++++++ drivers/cpufreq/mediatek-cpufreq.c | 400 ++++++++++++------ 5 files changed, 609 insertions(+), 123 deletions(-)