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 X-Spam-Level: X-Spam-Status: No, score=-6.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_NEOMUTT autolearn=ham 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 CD859C04E87 for ; Mon, 20 May 2019 04:47:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9FFFD204FD for ; Mon, 20 May 2019 04:47:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="S6RC8/KF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730142AbfETErI (ORCPT ); Mon, 20 May 2019 00:47:08 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:44233 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728418AbfETErI (ORCPT ); Mon, 20 May 2019 00:47:08 -0400 Received: by mail-pg1-f193.google.com with SMTP id z16so6124910pgv.11 for ; Sun, 19 May 2019 21:47:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=znPD6qSCRqBSVISTFwv2IDS0tUXtYPowDMtFJwfIVG4=; b=S6RC8/KF8MMJum/v07irupW0Jzz5U1cWZxnJgMBycQ7J895LZbEdp2S6H280gXSoa0 SJ5+zv7fSANzrQNVh5LnV0BQn9+ZCCh0UNQnRg6VIf68xhokxw9TRlKz8vZ3/u0h7zq9 oOhxl34eO8SRYCHxm57SuDWotd0GD9ObvR+77sI12lTOU4dHqSZjOWPMIMQYBpTQUS/f t+vlbGUb6r/jcyjTS9A5/DVvxWSHfBLDeTq1EPzFNxc/gvD4wFXOtLXUGJVEsGOG6BoH VcfIbzffj7ppyKXxEua+4ulXi/67rNtwR0vWGY1TmVrciBOjTa8cWJg5zsyHXsctJQ6W eJdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=znPD6qSCRqBSVISTFwv2IDS0tUXtYPowDMtFJwfIVG4=; b=p2skBkLtOOjjBz3qtEEAp30YeAgpcik8OukrIxnSlJw6kwbETTJOdbyJV/O3Km1MUX YRMQEG1tYIoqWMB/H/ElZz3bKUe2TyNbMQQC6S/1lP8YI7WISn6ioVNIIKXcWAM+gkQ9 maQou/dlwT0+e9+K8Cl6DDS9u3ShAZfkxWJOVmlQsnhmwJ+FAaOtHOuqdanclhxxUjZ6 HVS0ktNmuWPo+kEufl9EbnLZJnCt4nmziuxLWo7mu32vmt7LY/YKzxwrL+/U0qMowld9 c3fWblHP8+yHzOiwvNgPXSOxOQuuyEqBL4dXu88w3lL8Fc/nYmeIzoU+P/fmrYtw0Ppo A5Yw== X-Gm-Message-State: APjAAAXtsMogDkTRHgXgTnJhHGXE5tf01hbleQgnoEtebzq3/yuZu2WV jimITZpAJT+vjXuzlzVhuLp9Hw== X-Google-Smtp-Source: APXvYqw2fylBLzNgfG8L7skLbYmkylnXBeuW32Xv1x+By0k9dxCCF49gfY26D3/iHYdXTo1cfNHHCQ== X-Received: by 2002:a63:1c4:: with SMTP id 187mr46179260pgb.317.1558327627746; Sun, 19 May 2019 21:47:07 -0700 (PDT) Received: from localhost ([122.172.118.99]) by smtp.gmail.com with ESMTPSA id s28sm22716058pgl.88.2019.05.19.21.47.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 19 May 2019 21:47:06 -0700 (PDT) Date: Mon, 20 May 2019 10:17:04 +0530 From: Viresh Kumar To: "Andrew-sh.Cheng" Cc: MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Rob Herring , Mark Rutland , Matthias Brugger , "Rafael J. Wysocki" , Nishanth Menon , Stephen Boyd , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, srv_heupstream@mediatek.com, fan.chen@mediatek.com, Stephen Boyd , Roger Lu Subject: Re: [PATCH 6/8] PM / OPP: Support adjusting OPP voltages at runtime Message-ID: <20190520044704.unftq6q5vy73z5bo@vireshk-i7> References: <1557997725-12178-1-git-send-email-andrew-sh.cheng@mediatek.com> <1557997725-12178-7-git-send-email-andrew-sh.cheng@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1557997725-12178-7-git-send-email-andrew-sh.cheng@mediatek.com> User-Agent: NeoMutt/20180716-391-311a52 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 16-05-19, 17:08, Andrew-sh.Cheng wrote: > From: Stephen Boyd > > On some SoCs the Adaptive Voltage Scaling (AVS) technique is > employed to optimize the operating voltage of a device. At a > given frequency, the hardware monitors dynamic factors and either > makes a suggestion for how much to adjust a voltage for the > current frequency, or it automatically adjusts the voltage > without software intervention. Add an API to the OPP library for > the former case, so that AVS type devices can update the voltages > for an OPP when the hardware determines the voltage should > change. The assumption is that drivers like CPUfreq or devfreq > will register for the OPP notifiers and adjust the voltage > according to suggestions that AVS makes. > > This patch is devired from [1] submitted by Stephen. > [1] https://lore.kernel.org/patchwork/patch/599279/ > > Signed-off-by: Stephen Boyd > Signed-off-by: Roger Lu > --- > drivers/opp/core.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/pm_opp.h | 11 +++++++ > 2 files changed, 89 insertions(+) This is an rcu implementation which got removed long back from OPP core. Please align this with the latest changes. -- viresh 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 X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham 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 C5363C04AAF for ; Mon, 20 May 2019 04:47:20 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 97185204FD for ; Mon, 20 May 2019 04:47:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Yl1fytMF"; 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Sun, 19 May 2019 21:47:06 -0700 (PDT) Date: Mon, 20 May 2019 10:17:04 +0530 From: Viresh Kumar To: "Andrew-sh.Cheng" Subject: Re: [PATCH 6/8] PM / OPP: Support adjusting OPP voltages at runtime Message-ID: <20190520044704.unftq6q5vy73z5bo@vireshk-i7> References: <1557997725-12178-1-git-send-email-andrew-sh.cheng@mediatek.com> <1557997725-12178-7-git-send-email-andrew-sh.cheng@mediatek.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1557997725-12178-7-git-send-email-andrew-sh.cheng@mediatek.com> User-Agent: NeoMutt/20180716-391-311a52 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190519_214708_318155_F4EF4E0F X-CRM114-Status: GOOD ( 16.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Nishanth Menon , srv_heupstream@mediatek.com, linux-pm@vger.kernel.org, Stephen Boyd , Stephen Boyd , "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, Rob Herring , Chanwoo Choi , Kyungmin Park , MyungJoo Ham , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Matthias Brugger , fan.chen@mediatek.com, devicetree@vger.kernel.org, Roger Lu Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 16-05-19, 17:08, Andrew-sh.Cheng wrote: > From: Stephen Boyd > > On some SoCs the Adaptive Voltage Scaling (AVS) technique is > employed to optimize the operating voltage of a device. At a > given frequency, the hardware monitors dynamic factors and either > makes a suggestion for how much to adjust a voltage for the > current frequency, or it automatically adjusts the voltage > without software intervention. Add an API to the OPP library for > the former case, so that AVS type devices can update the voltages > for an OPP when the hardware determines the voltage should > change. The assumption is that drivers like CPUfreq or devfreq > will register for the OPP notifiers and adjust the voltage > according to suggestions that AVS makes. > > This patch is devired from [1] submitted by Stephen. > [1] https://lore.kernel.org/patchwork/patch/599279/ > > Signed-off-by: Stephen Boyd > Signed-off-by: Roger Lu > --- > drivers/opp/core.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/pm_opp.h | 11 +++++++ > 2 files changed, 89 insertions(+) This is an rcu implementation which got removed long back from OPP core. Please align this with the latest changes. -- viresh _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel