From patchwork Tue Mar 23 11:33:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "andrew-sh.cheng" X-Patchwork-Id: 12157453 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC347C433E0 for ; Tue, 23 Mar 2021 11:37:03 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6520D619A9 for ; Tue, 23 Mar 2021 11:37:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6520D619A9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; 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=6sIRqQnAfM4F0ls3q/8IjWNXwh2puOx1hk/yj4t5/ug=; b=gQMOUpNYpoWO67i91ECYwMTI7o umegRYLxJWwZ43q+s7fevkaLk0dVyA/BF+WsKAwjerLg06O/kRReUkmSNK6NJBqQ7fcl2+daV3ZPD d0toVKkXizLyCIm6T/xzIEVksmX4VY45GRb8K8V0Iz836pe52IsFism+Vev4s2TT/jTPg38xS6udn WSxM6phV8f6IHXfpTkwmXOCytpN84r8uXxtH/sK9gZayHE4fYNCeV/IdPE3O8qSikYg8fOvJc2lwT am/gHNHrplXZyXcbzJAzA7ryleDMwlUQSAGzSL6OyrqCRId9XCPXdZfOUGaRglpM+kqH9VjhwoyTE PimUbHCg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOfIn-00EibM-1i; Tue, 23 Mar 2021 11:34:25 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lOfId-00EiXl-8p; Tue, 23 Mar 2021 11:34:19 +0000 X-UUID: 70a73df5e0b74c908048b5106ad2111f-20210323 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=Tv5v56LWBYbW7dJZj2UEP/U8nrP0oPKHC9w2QsvR3iA=; b=pKhb8qi1M4T8UzFXQBph7sT4ruAOuG1cl6pwJdo7kqltnOG/Lvt/lQsoy5vh8tyNNrBSetN79poryMAKG2xCWnkGJabuob+aPIxmTp78P/OJWag4+NNY8a/g+/WLsACKT77Kq+CMtZio7VniHi2dtg1xmyA7I+u4+tltQ2XLmSo=; X-UUID: 70a73df5e0b74c908048b5106ad2111f-20210323 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 1257930023; Tue, 23 Mar 2021 03:34:06 -0800 Received: from mtkmbs05n1.mediatek.inc (172.21.101.15) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 23 Mar 2021 04:34:04 -0700 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 23 Mar 2021 19:34:03 +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; Tue, 23 Mar 2021 19:34:03 +0800 From: Andrew-sh.Cheng To: MyungJoo Ham , Kyungmin Park , Chanwoo Choi , "Rob Herring" , Mark Rutland , "Matthias Brugger" , "Rafael J. Wysocki" , Viresh Kumar , Nishanth Menon , "Stephen Boyd" , Liam Girdwood , Mark Brown CC: , , , , , , Andrew-sh.Cheng Subject: [PATCH V8 0/8] Add cpufreq and cci devfreq for mt8183, and SVS support Date: Tue, 23 Mar 2021 19:33:53 +0800 Message-ID: <1616499241-4906-1-git-send-email-andrew-sh.cheng@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210323_113416_226893_FAB135C7 X-CRM114-Status: GOOD ( 15.96 ) 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 From: "Andrew-sh.Cheng" MT8183 supports CPU DVFS and CCI DVFS, and LITTLE cpus and CCI are in the same voltage domain. So, this series is to add drivers to handle the voltage coupling between CPU and CCI DVFS. For SVS support, need OPP_EVENT_ADJUST_VOLTAGE and corresponding reaction. Change since v7: - Separate part of "[v7,6/8] cpufreq: mediatek: add opp notification for SVS support" into another patch. - "cpufreq: mediatek: Add record of previous desired vproc value" - This is for case of there are multiple users on Vproc. - cpufreq will record desired voltage. - For "[v7,8/8] arm64: dts: mediatek: add cpufreq and cci devfreq nodes for mt8183" - Add "required-opps" for cci to make cpufreq based passive governor work. - Depend on patches have already in K-5.12 Andrew-sh.Cheng (7): cpufreq: mediatek: Enable clock and regulator dt-bindings: devfreq: add compatible for mt8183 cci devfreq devfreq: add mediatek cci devfreq cpufreq: mediatek: Add record of previous desired vproc value cpufreq: mediatek: add opp notification for SVS support devfreq: mediatek: cci devfreq register opp notification for SVS support arm64: dts: mediatek: add cpufreq and cci devfreq nodes for mt8183 Saravana Kannan (1): PM / devfreq: Add cpu based scaling support to passive_governor .../devicetree/bindings/devfreq/mt8183-cci.yaml | 51 ++++ arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 36 +++ arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 4 + arch/arm64/boot/dts/mediatek/mt8183.dtsi | 277 +++++++++++++++++ drivers/cpufreq/mediatek-cpufreq.c | 122 +++++++- drivers/devfreq/Kconfig | 12 + drivers/devfreq/Makefile | 1 + drivers/devfreq/governor_passive.c | 329 ++++++++++++++++++++- drivers/devfreq/mt8183-cci-devfreq.c | 225 ++++++++++++++ include/linux/devfreq.h | 29 +- 10 files changed, 1060 insertions(+), 26 deletions(-) create mode 100644 Documentation/devicetree/bindings/devfreq/mt8183-cci.yaml create mode 100644 drivers/devfreq/mt8183-cci-devfreq.c