From: Viresh Kumar <viresh.kumar@linaro.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
rafael.j.wysocki@intel.com, linux-pm@vger.kernel.org
Subject: Re: [PATCH] cpufreq: use last policy after online
Date: Wed, 2 Dec 2015 08:24:32 +0530 [thread overview]
Message-ID: <20151202025432.GI4459@ubuntu> (raw)
In-Reply-To: <3188790.ma3TNFyjuZ@vostro.rjw.lan>
On 02-12-15, 03:05, 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 <srinivas.pandruvada@linux.intel.com>
>
> I guess this is urgent, right?
>
> Is it a regression fix or has it just never worked?
I tried to look at history and I am not sure if it worked earlier or
not.
--
viresh
next prev parent reply other threads:[~2015-12-02 2:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-02 0:52 [PATCH] cpufreq: use last policy after online Srinivas Pandruvada
2015-12-02 2:05 ` Rafael J. Wysocki
2015-12-02 2:54 ` Viresh Kumar [this message]
2015-12-02 22:05 ` Srinivas Pandruvada
2015-12-02 23:08 ` Rafael J. Wysocki
2015-12-02 2:53 ` Viresh Kumar
2015-12-02 16:56 ` Srinivas Pandruvada
2015-12-02 23:21 ` Rafael J. Wysocki
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