From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [PATCH] cpufreq: use last policy after online Date: Thu, 03 Dec 2015 00:08:25 +0100 Message-ID: <1664214.VxVTry24Vn@vostro.rjw.lan> References: <1449017534-6127-1-git-send-email-srinivas.pandruvada@linux.intel.com> <3188790.ma3TNFyjuZ@vostro.rjw.lan> <1449093927.3240.37.camel@spandruv-desk3.jf.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7Bit Return-path: Received: from v094114.home.net.pl ([79.96.170.134]:52810 "HELO v094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755237AbbLBWif (ORCPT ); Wed, 2 Dec 2015 17:38:35 -0500 In-Reply-To: <1449093927.3240.37.camel@spandruv-desk3.jf.intel.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Srinivas Pandruvada Cc: rafael.j.wysocki@intel.com, viresh.kumar@linaro.org, linux-pm@vger.kernel.org On Wednesday, December 02, 2015 02:05:27 PM Srinivas Pandruvada wrote: > On Wed, 2015-12-02 at 03:05 +0100, Rafael J. Wysocki wrote: > > On Tuesday, December 01, 2015 04:52:14 PM Srinivas Pandruvada wrote: > > > For cpufreq drivers which use setpolicy interface, after offline->online > > > the policy is set to default. This can be reproduced by setting the > > > default policy of intel_pstate or longrun to ondemand and then change to > > > "performance". After offline and online, the setpolicy will be called with > > > the policy=ondemand. > > > For drivers using governors this condition is handled by storing > > > last_governor, during offline and restoring during online. The same should > > > be done for drivers using setpolicy interface. Storing last_policy during > > > offline and restoring during online. > > > > > > Signed-off-by: Srinivas Pandruvada > > > > I guess this is urgent, right? > I don't think. I tried couple of old kernels, same issue. OK, thanks for checking! Rafael