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Diffstat (limited to 'Bindings/arm/idle-states.txt')
| -rw-r--r-- | Bindings/arm/idle-states.txt | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/Bindings/arm/idle-states.txt b/Bindings/arm/idle-states.txt index 45730ba60af5..2d325bed37e5 100644 --- a/Bindings/arm/idle-states.txt +++ b/Bindings/arm/idle-states.txt @@ -241,9 +241,13 @@ processor idle states, defined as device tree nodes, are listed. - "psci" # On ARM 32-bit systems this property is optional -The nodes describing the idle states (state) can only be defined within the -idle-states node, any other configuration is considered invalid and therefore -must be ignored. +This assumes that the "enable-method" property is set to "psci" in the cpu +node[6] that is responsible for setting up CPU idle management in the OS +implementation. + +The nodes describing the idle states (state) can only be defined +within the idle-states node, any other configuration is considered invalid +and therefore must be ignored. =========================================== 4 - state node @@ -687,7 +691,7 @@ cpus { Documentation/devicetree/bindings/arm/cpus.yaml [2] ARM Linux Kernel documentation - PSCI bindings - Documentation/devicetree/bindings/arm/psci.txt + Documentation/devicetree/bindings/arm/psci.yaml [3] ARM Server Base System Architecture (SBSA) http://infocenter.arm.com/help/index.jsp @@ -697,3 +701,6 @@ cpus { [5] Devicetree Specification https://www.devicetree.org/specifications/ + +[6] ARM Linux Kernel documentation - Booting AArch64 Linux + Documentation/arm64/booting.rst |