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From: viresh.kumar@linaro.org (Viresh Kumar)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] cpufreq: exynos: Broadcast frequency change notifications for all cores
Date: Thu, 31 Jan 2013 20:46:10 +0530	[thread overview]
Message-ID: <CAKohpomEcrPa7UnZmtTouxN6JXxcaa7dBstMGUWjXGL0n1+=Ng@mail.gmail.com> (raw)
In-Reply-To: <1520678.Zm627xxIN3@amdc1227>

On 31 January 2013 20:34, Tomasz Figa <t.figa@samsung.com> wrote:
> Well, the fact that it isn't used at the moment doesn't mean that it
> shouldn't be set correctly. The field is present in the structure and has
> a set of defined values - one of which should be selected. For example,
> I can imagine some governor taking this information into account.

Governors already take this information but from a different variable:
policy->cpus.

Look at the patch which added it:

commit 3b2d99429e3386b6e2ac949fc72486509c8bbe36
Author: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Date:   Wed Dec 14 15:05:00 2005 -0500

    P-state software coordination for ACPI core

    http://bugzilla.kernel.org/show_bug.cgi?id=5737

    Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
    Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/processor_perflib.c | 228
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 include/acpi/processor.h         |  27 ++++++++++++-
 include/linux/cpufreq.h          |   4 ++
 3 files changed, 258 insertions(+), 1 deletion(-)


It was clearly for ACPI, but was probably named badly and we people
got confused that it is for our use.

--
viresh

  reply	other threads:[~2013-01-31 15:16 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-13  9:26 [PATCH] cpufreq: exynos: Broadcast frequency change notifications for all cores Tomasz Figa
2012-11-21 13:52 ` Tomasz Figa
2012-11-21 20:47   ` Rafael J. Wysocki
2012-11-21 21:23     ` Tomasz Figa
2012-11-21 23:41       ` Rafael J. Wysocki
2013-01-31  4:20 ` Viresh Kumar
2013-01-31 14:45   ` Tomasz Figa
2013-01-31 14:52     ` Viresh Kumar
2013-01-31 15:04       ` Tomasz Figa
2013-01-31 15:16         ` Viresh Kumar [this message]
2013-01-31 16:07           ` Tomasz Figa
2013-01-31 16:12             ` Viresh Kumar
2013-02-01  3:47               ` Viresh Kumar

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