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| author | Sudeep Holla <Sudeep.Holla@arm.com> | 2016-07-19 19:52:53 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-07-21 23:24:35 +0200 |
| commit | 35ae713355868aa493edbfbabf615473473215cc (patch) | |
| tree | 3ee0ef3e3d20c76cfb774d9e39d11b55aca1e4cb /drivers/acpi/Kconfig | |
| parent | Linux 4.7-rc7 (diff) | |
| download | linux-35ae713355868aa493edbfbabf615473473215cc.tar.xz linux-35ae713355868aa493edbfbabf615473473215cc.zip | |
ACPI / processor_idle: introduce ACPI_PROCESSOR_CSTATE
ACPI 6.0 adds a new method to specify the CPU idle states(C-states)
called Low Power Idle(LPI) states. Since new architectures like ARM64
use only LPIs, introduce ACPI_PROCESSOR_CSTATE to encapsulate all the
code supporting the old style C-states(_CST).
This patch will help to extend the processor_idle module to support
LPI.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/Kconfig')
| -rw-r--r-- | drivers/acpi/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index b7e2e776397d..1358fb7d7a68 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -213,6 +213,10 @@ config ACPI_CPU_FREQ_PSS bool select THERMAL +config ACPI_PROCESSOR_CSTATE + def_bool y + depends on IA64 || X86 + config ACPI_PROCESSOR_IDLE bool select CPU_IDLE |