From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: Re: [PATCH v4 0/6] cpufreq: use generic cpufreq drivers for Exynos4x12 platform Date: Fri, 07 Aug 2015 13:31:15 +0200 Message-ID: <2061119.GBaoSb4YSL@amdc1976> References: <1438868514-8814-1-git-send-email-b.zolnierkie@samsung.com> <55C43971.5010504@samsung.com> <20150807051826.GJ6325@linux> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit Return-path: In-reply-to: <20150807051826.GJ6325@linux> Sender: linux-samsung-soc-owner@vger.kernel.org To: Viresh Kumar Cc: Krzysztof Kozlowski , Kukjin Kim , "Rafael J. Wysocki" , Olof Johansson , Arnd Bergmann , 'Thomas Abraham' , 'Sylwester Nawrocki' , 'Michael Turquette' , 'Tomasz Figa' , 'Lukasz Majewski' , 'Heiko Stuebner' , 'Chanwoo Choi' , 'Kevin Hilman' , 'Javier Martinez Canillas' , 'Tobias Jakobi' , 'Anand Moon' , linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: linux-pm@vger.kernel.org Hi, On Friday, August 07, 2015 10:48:26 AM Viresh Kumar wrote: > On 07-08-15, 13:52, Krzysztof Kozlowski wrote: > > Thanks for explanation. As fair as I understand, Bartlomiej wanted to > > merge this in a way which would avoid loosing the boost mode. Kukjin > > prepared topic branches for previous cpu-freq/clk stuff so maybe > > everything could go through PM? > > We aren't loosing anything at all. There can be two cases here: > > 1. Patch 1/6 and 6/6 make it to 4.3 (with suggested changes) via PM tree: > - All will work fine in this case, no issues at all.. > > 2. They don't make it: > - Even in this case, nothing will break. Users can just enable a > config option and that's all.. Users don't need to enable the config option to get boost functionality working. It is only needed to get scaling_boost_freqs sysfs attribute visible (which lists available boost freqs) when using cpufreq-dt driver. Also the config option in question is not user visible. The worst thing that happens if these 2 PM patches don't make it in time is that there will be no scaling_boost_freqs available when using cpufreq-dt driver. Which is not very important from Exynos4x12 POV as it only supports single boost freq currently. > So, no need to divert things into another tree this late. I agree. > Over that, Rafael will not be around for 2 weeks now (Plumbers and > other stuff) .. > > So, just target the cpufreq core changes via PM tree.. rest is just > fine. > > I hope that makes sense :) Yes. :) Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics