From: Viresh Kumar <viresh.kumar@linaro.org>
To: Steve Muckle <steve.muckle@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Vincent Guittot <vincent.guittot@linaro.org>,
Morten Rasmussen <morten.rasmussen@arm.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Juri Lelli <Juri.Lelli@arm.com>,
Patrick Bellasi <patrick.bellasi@arm.com>
Subject: Re: [PATCH v3 1/3] cpufreq: add cpufreq_driver_resolve_freq()
Date: Fri, 22 Jul 2016 08:16:42 -0700 [thread overview]
Message-ID: <20160722151641.GQ3122@ubuntu> (raw)
In-Reply-To: <20160722004405.GA27987@graphite.smuckle.net>
On 21-07-16, 17:44, Steve Muckle wrote:
> Going back and checking I see I was thinking of your suggestion that
> cpufreq_register_driver() check that only target() drivers offer a
> resolve_freq() callback. I put a comment for this in cpufreq.h but not a
> check - I could add a check in another patch if you like.
That can be done as we aren't supporting the ->resolve_freq() callback
for ->target_index() drivers.
> Long term as I was mentioning in the other thread I think it'd be good
> if the current target() drivers were modified to supply resolve_freq(),
> and that cpufreq_register_driver() were again changed to require it for
> those drivers.
There is no need for us to force this, its really optional for such
platforms. Worst case, schedutil wouldn't work at the best, so what?
Its a platform driver's choice, isn't it ?
--
viresh
next prev parent reply other threads:[~2016-07-22 15:16 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-13 20:25 [PATCH v3 0/3] cpufreq: avoid redundant driver calls in schedutil Steve Muckle
2016-07-13 20:25 ` [PATCH v3 1/3] cpufreq: add cpufreq_driver_resolve_freq() Steve Muckle
2016-07-21 19:59 ` Viresh Kumar
2016-07-21 20:31 ` Rafael J. Wysocki
2016-07-21 20:30 ` Viresh Kumar
2016-07-21 20:52 ` Rafael J. Wysocki
2016-07-21 20:52 ` Viresh Kumar
2016-07-21 21:19 ` Rafael J. Wysocki
2016-07-21 21:16 ` Viresh Kumar
2016-07-21 23:21 ` Steve Muckle
2016-07-21 23:29 ` Steve Muckle
2016-07-21 23:31 ` Viresh Kumar
2016-07-21 23:30 ` Viresh Kumar
2016-07-21 23:36 ` Steve Muckle
2016-07-21 23:41 ` Steve Muckle
2016-07-22 0:44 ` Steve Muckle
2016-07-22 15:16 ` Viresh Kumar [this message]
2016-07-22 17:49 ` Steve Muckle
2016-07-21 21:13 ` Viresh Kumar
2016-07-13 20:25 ` [PATCH v3 2/3] cpufreq: schedutil: map raw required frequency to driver frequency Steve Muckle
2016-07-13 20:25 ` [PATCH v3 3/3] cpufreq: acpi-cpufreq: use cached frequency mapping when possible Steve Muckle
2016-07-14 10:02 ` [PATCH v3 0/3] cpufreq: avoid redundant driver calls in schedutil Pingbo Wen
2016-07-14 18:00 ` Steve Muckle
2016-07-21 20:01 ` Viresh Kumar
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