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authorLukasz Majewski <l.majewski@samsung.com>2013-12-20 15:24:51 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-17 02:00:45 +0100
commit2fb4719b25602a03fb6c7da77d029db03103663d (patch)
treea86007243b613f4cbd8caef85145224af923b369 /drivers/cpufreq/Kconfig.arm
parentcfc9c8ed03e4d908f2388af8815f44c87b503aaf (diff)
cpufreq / boost: Kconfig: Support for software-managed BOOST
Add CONFIG_CPU_FREQ_BOOST_SW Kconfig option such that software-managed boost is enabled only after selecting "EXYNOS Frequency Overclocking - Software". It also depends on the thermal subsystem to be compiled in, which is necessary for disabling boost and cooling down the device when overheating is detected. Software-managed boost _MUST_ _NOT_ be enabled without thermal subsystem with properly defined overheating temperature thresholds. This option doesn't affect the x86's hardware-driven boost support in the acpi-cpufreq driver. 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> [rjw: Subject and changelog] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/Kconfig.arm')
-rw-r--r--drivers/cpufreq/Kconfig.arm15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 0468ad147301..31297499a60a 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -66,6 +66,21 @@ 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