acrn-kernel/arch/ia64/kernel/cpufreq/Kconfig

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#
# CPU Frequency scaling
#
menu "CPU Frequency scaling"
source "drivers/cpufreq/Kconfig"
if CPU_FREQ
comment "CPUFreq processor drivers"
config IA64_ACPI_CPUFREQ
tristate "ACPI Processor P-States driver"
select CPU_FREQ_TABLE
depends on ACPI_PROCESSOR
help
This driver adds a CPUFreq driver which utilizes the ACPI
Processor Performance States.
For details, take a look at <file:Documentation/cpu-freq/>.
If in doubt, say N.
endif # CPU_FREQ
endmenu