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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jtAdn-0004k3-H6; Wed, 08 Jul 2020 14:01:39 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jtAdk-0004j6-Gs for linux-arm-kernel@lists.infradead.org; Wed, 08 Jul 2020 14:01:37 +0000 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 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-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200708_100136_677763_0DFB6352 X-CRM114-Status: GOOD ( 18.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: willy.mh.wolff.ml@gmail.com, linux-samsung-soc@vger.kernel.org, s.nawrocki@samsung.com, b.zolnierkie@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, kyungmin.park@samsung.com, myungjoo.ham@samsung.com, chanwoo@kernel.org, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel