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| author | Will Deacon | 2012-12-12 20:20:52 +0100 |
|---|---|---|
| committer | Will Deacon | 2013-01-10 22:10:20 +0100 |
| commit | 2bdd424f26be1c98b6e3d9acfffb5559c131c888 (patch) | |
| tree | efe23eb527e407f73dd3b5e6167c80acb0355b4e /arch/arm/Kconfig | |
| parent | ARM: psci: add devicetree binding for describing PSCI firmware (diff) | |
| download | kernel-qcow2-linux-2bdd424f26be1c98b6e3d9acfffb5559c131c888.tar.gz kernel-qcow2-linux-2bdd424f26be1c98b6e3d9acfffb5559c131c888.tar.xz kernel-qcow2-linux-2bdd424f26be1c98b6e3d9acfffb5559c131c888.zip | |
ARM: psci: add support for PSCI invocations from the kernel
This patch adds support for the Power State Coordination Interface
defined by ARM, allowing Linux to request CPU-centric power-management
operations from firmware implementing the PSCI protocol.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 67874b82a4ed..96863b860641 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1620,6 +1620,16 @@ config HOTPLUG_CPU Say Y here to experiment with turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu. +config ARM_PSCI + bool "Support for the ARM Power State Coordination Interface (PSCI)" + depends on CPU_V7 + help + Say Y here if you want Linux to communicate with system firmware + implementing the PSCI specification for CPU-centric power + management operations described in ARM document number ARM DEN + 0022A ("Power State Coordination Interface System Software on + ARM processors"). + config LOCAL_TIMERS bool "Use local timer interrupts" depends on SMP |