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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 13999C433E0 for ; Wed, 8 Jul 2020 14:01:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1CA6206E2 for ; Wed, 8 Jul 2020 14:01:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729816AbgGHOBa (ORCPT ); Wed, 8 Jul 2020 10:01:30 -0400 Received: from foss.arm.com ([217.140.110.172]:42246 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729537AbgGHOBa (ORCPT ); Wed, 8 Jul 2020 10:01:30 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CB7941FB; Wed, 8 Jul 2020 07:01:29 -0700 (PDT) Received: from [10.37.12.67] (unknown [10.37.12.67]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3CB353F237; Wed, 8 Jul 2020 07:01:25 -0700 (PDT) Subject: Re: [RFC PATCH 0/2] PM / devfreq: Add delayed timer for polling To: Chanwoo Choi , k.konieczny@samsung.com, krzk@kernel.org, kgene@kernel.org Cc: s.nawrocki@samsung.com, willy.mh.wolff.ml@gmail.com, b.zolnierkie@samsung.com, chanwoo@kernel.org, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20200703062622.11773-1-cw00.choi@samsung.com> From: Lukasz Luba Message-ID: Date: Wed, 8 Jul 2020 15:01:19 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20200703062622.11773-1-cw00.choi@samsung.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Hi all, On 7/3/20 7:26 AM, Chanwoo Choi wrote: > Add the delayed timer to devfreq framework in order to support > the periodical polling mode without stop caused by CPU idle state. > Some Non-CPU device must need to monitor the device status like > utilization regardless of CPU state. > > - patch1 explains the detailed reason why the delayed timer is required. > - patch2 initializes that exynos5422-dmc device use delayed timer as default > instead of deferrable timer. > > Chanwoo Choi (2): > PM / devfreq: Add support delayed timer for polling mode > memory: samsung: exynos5422-dmc: Use delayed timer as default > > Documentation/ABI/testing/sysfs-class-devfreq | 12 +++ > drivers/devfreq/devfreq.c | 83 ++++++++++++++++++- > drivers/memory/samsung/exynos5422-dmc.c | 1 + > include/linux/devfreq.h | 9 ++ > 4 files changed, 104 insertions(+), 1 deletion(-) > My apologizes for being late for the party. I wasn't able to run tests and I had to fix my setup after I messed up some scripts. The patch set looks good to me, so you can add my (to both patches): Reviewed-by: Lukasz Luba I have run these Willy's benchmark tests and I will send some follow up patches in a few minutes. Regards, Lukasz