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-rw-r--r--drivers/acpi/Kconfig14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 5d1015c26ff4..93a04eec0174 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -197,6 +197,20 @@ config ACPI_PROCESSOR_IDLE
bool
select CPU_IDLE
+config ACPI_CPPC_LIB
+ bool
+ depends on ACPI_PROCESSOR
+ depends on !ACPI_CPU_FREQ_PSS
+ select MAILBOX
+ select PCC
+ help
+ If this option is enabled, this file implements common functionality
+ to parse CPPC tables as described in the ACPI 5.1+ spec. The
+ routines implemented are meant to be used by other
+ drivers to control CPU performance using CPPC semantics.
+ If your platform does not support CPPC in firmware,
+ leave this option disabled.
+
config ACPI_PROCESSOR
tristate "Processor"
depends on X86 || IA64