From patchwork Fri Apr 15 05:59:01 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: 12814566 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 573B1C433F5 for ; Fri, 15 Apr 2022 06:02:30 +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=Aau3wZiQ0nvb4Qk20nFdH1+nDw9r6Olh76EXop1x3TQ=; b=lZW5NC29B3pVyj 3hMGHNbwmjMBAEf9JruRJgYpzpbs3MFzD327NJjIa1CfPNsSYMdm2DzomM4oDG+cmK7OMxNS7KO9s 0UyeT8oru7Mz+do4aLdOk6wChOegZFqmwwtRh4lqIgeIxMLrm2i5xlVvnMppPphx2I8Bx3BmY3/Qf 9ARBib/mqLENf9rmRSX824/YRKpSaKHrNLBL4Tl0b7TIqwXqG8CA+hbgdjWpEVkEQqGHGGLZ+Lijr 4+NzjYIuMQzam1fYvckQoapB+PRpsKwG6NSU6RGbh5Wml0K3VU4qQtbO0KXbAEQ8w73nxeEj1kKAz yznU6tGlYEzbkDLER+Nw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nfF1L-008p3f-KV; Fri, 15 Apr 2022 06:01:27 +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 1nfEzS-008nsm-9x; Fri, 15 Apr 2022 05:59:32 +0000 X-UUID: 3413b1399ff94f25b87e5719bbf76842-20220414 X-UUID: 3413b1399ff94f25b87e5719bbf76842-20220414 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1270953301; Thu, 14 Apr 2022 22:59:21 -0700 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 14 Apr 2022 22:59:19 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 15 Apr 2022 13:59:18 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 15 Apr 2022 13:59:18 +0800 From: Rex-BC Chen To: , , , , CC: , , , , , , , , , , , Rex-BC Chen Subject: [PATCH V3 00/15] cpufreq: mediatek: Cleanup and support MT8183 and MT8186 Date: Fri, 15 Apr 2022 13:59:01 +0800 Message-ID: <20220415055916.28350-1-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-20220414_225930_395770_E515F880 X-CRM114-Status: GOOD ( 11.90 ) 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 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. message-id:20220307122151.11666-1-jia-wei.chang@mediatek.com [2]: The MediaTek CCI devfreq driver is introduced in another series. message-id:20220408052150.22536-1-johnson.wang@mediatek.com [3]: The MediaTek SVS driver is introduced in another series. message-id:20220221063939.14969-1-roger.lu@mediatek.com Andrew-sh.Cheng (1): cpufreq: mediatek: Add opp notification support Jia-Wei Chang (8): dt-bindings: cpufreq: mediatek: Add MediaTek CCI property cpufreq: mediatek: Record previous target vproc value cpufreq: mediatek: Move voltage limits to platform data cpufreq: mediatek: Add .get function cpufreq: mediatek: Make sram regulator optional cpufreq: mediatek: Refine mtk_cpufreq_voltage_tracking() cpufreq: mediatek: Link CCI device to CPU cpufreq: mediatek: Add support for MT8186 Rex-BC Chen (6): cpufreq: mediatek: Use device print to show logs cpufreq: mediatek: Replace old_* with pre_* cpufreq: mediatek: Add counter to prevent infinite loop when tracking voltage 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 | 5 + 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 | 497 ++++++++++++------ 5 files changed, 664 insertions(+), 163 deletions(-)