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cpufreq: Add SFI based cpufreq driver support

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This adds the SFI based cpu freq driver for some of the Intel's
Silvermont based Atom architectures like Z34xx and Z35xx.

Signed-off-by: Rudramuni, Vishwesh M <vishwesh.m.rudramuni@intel.com>
Signed-off-by: Srinidhi Kasagar <srinidhi.kasagar@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Srinidhi Kasagar
2014-12-19 23:13:51 +05:30
committed by Len Brown
parent 108cc2e7d2
commit e7ddf4b7b3
4 changed files with 148 additions and 0 deletions
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drivers/cpufreq/Kconfig.x86
+10
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@@ -57,6 +57,16 @@ config X86_ACPI_CPUFREQ_CPB
By enabling this option the acpi_cpufreq driver provides the old
entry in addition to the new boost ones, for compatibility reasons.
config X86_SFI_CPUFREQ
tristate "SFI Performance-States driver"
depends on X86_INTEL_MID && SFI
help
This adds a CPUFreq driver for some Silvermont based Intel Atom
architectures like Z34xx and Z35xx which enumerate processor
performance states through SFI.
If in doubt, say N.
config ELAN_CPUFREQ
tristate "AMD Elan SC400 and SC410"
depends on MELAN