All of lore.kernel.org
 help / color / mirror / Atom feed
From: Viresh Kumar <viresh.kumar@linaro.org>
To: Rafael Wysocki <rjw@rjwysocki.net>, edubezval@gmail.com
Cc: linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org,
	l.majewski@samsung.com, Viresh Kumar <viresh.kumar@linaro.org>
Subject: [PATCH V2 0/4] cpufreq: Register cooling device after policy is ready
Date: Thu, 27 Nov 2014 06:07:48 +0530	[thread overview]
Message-ID: <cover.1417048449.git.viresh.kumar@linaro.org> (raw)

Hi Rafael/Eduardo,

Currently there is no callback for cpufreq drivers which is called once the
policy is ready to be used. There are some requirements where such a callback is
required.

One of them is registering a cooling device with the help of
of_cpufreq_cooling_register(). This routine tries to get 'struct cpufreq_policy'
for CPUs which isn't yet initialed at the time ->init() is called and so we face
issues while registering the cooling device.

Because we can't register cooling device from ->init(), we need a callback that
is called after the policy is ready to be used and hence ->ready() callback.

The first patch fixes few formatting issues, so that the third patch doesn't
throw any checkpatch warnings. Second one fixes a potential bug in cpufreq-dt
driver. Third one introduces ->ready() callback which will be used in the
fourth patch.

V1->V2:
- s/usable/ready
- dropped last three patches that broke thermal somehow.

Viresh Kumar (4):
  cpufreq: Fix formatting issues in 'struct cpufreq_driver'
  cpufreq-dt: pass 'policy->related_cpus' to
    of_cpufreq_cooling_register()
  cpufreq: Introduce ->ready() callback for cpufreq drivers
  cpufreq-dt: register cooling device from ->ready() callback

 drivers/cpufreq/cpufreq-dt.c | 51 +++++++++++++++++++++++++----------------
 drivers/cpufreq/cpufreq.c    |  5 ++++
 include/linux/cpufreq.h      | 54 ++++++++++++++++++++++++--------------------
 3 files changed, 66 insertions(+), 44 deletions(-)

-- 
2.0.3.693.g996b0fd


             reply	other threads:[~2014-11-27  0:38 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-27  0:37 Viresh Kumar [this message]
2014-11-27  0:37 ` [PATCH V2 1/4] cpufreq: Fix formatting issues in 'struct cpufreq_driver' Viresh Kumar
2014-11-27  0:37 ` [PATCH V2 2/4] cpufreq-dt: pass 'policy->related_cpus' to of_cpufreq_cooling_register() Viresh Kumar
2014-11-27  0:37 ` [PATCH V2 3/4] cpufreq: Introduce ->ready() callback for cpufreq drivers Viresh Kumar
2014-11-27 11:00   ` Lukasz Majewski
2014-11-27  0:37 ` [PATCH V2 4/4] cpufreq-dt: register cooling device from ->ready() callback Viresh Kumar
2014-11-27 11:08   ` Lukasz Majewski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=cover.1417048449.git.viresh.kumar@linaro.org \
    --to=viresh.kumar@linaro.org \
    --cc=edubezval@gmail.com \
    --cc=l.majewski@samsung.com \
    --cc=linaro-kernel@lists.linaro.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=rjw@rjwysocki.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.