From mboxrd@z Thu Jan 1 00:00:00 1970 From: Viresh Kumar Subject: Re: [PATCH V2] cpufreq: Add scaling frequency range support Date: Tue, 28 Jul 2015 12:39:30 +0530 Message-ID: <20150728070930.GA2857@linux> References: <55B6F7C3.8040405@intel.com> <55B72923.7030101@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-pa0-f50.google.com ([209.85.220.50]:35023 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751187AbbG1HJh (ORCPT ); Tue, 28 Jul 2015 03:09:37 -0400 Received: by pabkd10 with SMTP id kd10so65211041pab.2 for ; Tue, 28 Jul 2015 00:09:37 -0700 (PDT) Content-Disposition: inline In-Reply-To: <55B72923.7030101@intel.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Pan Xinhui Cc: "linux-kernel@vger.kernel.org" , "linux-pm@vger.kernel.org" , "rjw@rjwysocki.net" , "mnipxh@163.com" , "yanmin_zhang@linux.intel.com" On 28-07-15, 15:02, Pan Xinhui wrote: > From: Pan Xinhui > > Userspace at most time do cpufreq tests very much inconveniently. > Currently they have to echo min and max cpu freq separately like below: > echo 480000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq > echo 2240000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq > > Add scaling_freq_range cpufreq attr to support userspace's demand. > Therefore it's easier for testers to write readable scripts like below: > echo 480000-2240000 > > /sys/devices/system/cpu/cpu0/cpufreq/scaling_freq_range > > Signed-off-by: Pan Xinhui > --- > Change from V1: > update cpu-freq documentation. > --- > Documentation/cpu-freq/user-guide.txt | 7 +++++++ > drivers/cpufreq/cpufreq.c | 31 +++++++++++++++++++++++++++++++ > 2 files changed, 38 insertions(+) Acked-by: Viresh Kumar -- viresh