lkml.org 
[lkml]   [2013]   [Aug]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v8 4/7] cpufreq:boost:Kconfig: Provide support for software managed BOOST
    Date
    For safety reasons new flag - CONFIG_CPU_FREQ_BOOST_SW has been added.
    Only after selecting "EXYNOS Frequency Overclocking - Software" Kconfig
    option the software managed boost is enabled. It also selects thermal
    subsystem to be compiled in. Thermal is necessary for disabling boost
    and cooling down the device when overheating detected.

    Boost _MUST_NOT_ work without thermal subsystem with properly defined
    overheating temperatures.

    This option doesn't affect x86's ACPI hardware managed boost support
    (i.e. Intel, AMD). In this situation boost management is embedded at
    hardware.

    Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
    Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
    Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

    ---
    Changes for v8:
    - None

    Changes for v7:
    - Remove superfluous "default n" definition
    - Generic CPU_FREQ_BOOST_SW depends on THERMAL

    Changes for v6:
    - CPU_FREQ_BOOST_SW [1] is now defined as "invisible" bool option.
    - Platform dependent ARM_EXYNOS_CPU_FREQ_BOOST_SW config option has been
    added. It depends on ARM_EXYNOS_CPUFREQ options and selects
    EXYNOS_THERMAL with the main boost config [1].

    Changes for v5:
    - New patch

    drivers/cpufreq/Kconfig | 4 ++++
    drivers/cpufreq/Kconfig.arm | 15 +++++++++++++++
    2 files changed, 19 insertions(+)

    diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
    index 534fcb8..e3cbf72 100644
    --- a/drivers/cpufreq/Kconfig
    +++ b/drivers/cpufreq/Kconfig
    @@ -23,6 +23,10 @@ config CPU_FREQ_TABLE
    config CPU_FREQ_GOV_COMMON
    bool

    +config CPU_FREQ_BOOST_SW
    + bool
    + depends on THERMAL
    +
    config CPU_FREQ_STAT
    tristate "CPU frequency translation statistics"
    select CPU_FREQ_TABLE
    diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
    index 0fa204b..6a6d173 100644
    --- a/drivers/cpufreq/Kconfig.arm
    +++ b/drivers/cpufreq/Kconfig.arm
    @@ -67,6 +67,21 @@ config ARM_EXYNOS5440_CPUFREQ

    If in doubt, say N.

    +config ARM_EXYNOS_CPU_FREQ_BOOST_SW
    + bool "EXYNOS Frequency Overclocking - Software"
    + depends on ARM_EXYNOS_CPUFREQ
    + select CPU_FREQ_BOOST_SW
    + select EXYNOS_THERMAL
    + help
    + This driver supports software managed overclocking (BOOST).
    + It allows usage of special frequencies for Samsung Exynos
    + processors if thermal conditions are appropriate.
    +
    + It reguires, for safe operation, thermal framework with properly
    + defined trip points.
    +
    + If in doubt, say N.
    +
    config ARM_HIGHBANK_CPUFREQ
    tristate "Calxeda Highbank-based"
    depends on ARCH_HIGHBANK
    --
    1.7.10.4


    \
     
     \ /
      Last update: 2013-08-26 18:21    [W:4.097 / U:0.076 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site