summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/power/wakeup-source.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/power/wakeup-source.txt')
-rw-r--r--Documentation/devicetree/bindings/power/wakeup-source.txt18
1 files changed, 11 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/power/wakeup-source.txt b/Documentation/devicetree/bindings/power/wakeup-source.txt
index 697333a56d..75bc20b956 100644
--- a/Documentation/devicetree/bindings/power/wakeup-source.txt
+++ b/Documentation/devicetree/bindings/power/wakeup-source.txt
@@ -3,16 +3,20 @@ Specifying wakeup capability for devices
Any device nodes
----------------
-Nodes that describe devices which has wakeup capability must contain an
+Nodes that describe devices which have wakeup capability may contain a
"wakeup-source" boolean property.
-Also, if device is marked as a wakeup source, then all the primary
-interrupt(s) can be used as wakeup interrupt(s).
+If the device is marked as a wakeup-source, interrupt wake capability depends
+on the device specific "interrupt-names" property. If no interrupts are labeled
+as wake capable, then it is up to the device to determine which interrupts can
+wake the system.
-However if the devices have dedicated interrupt as the wakeup source
-then they need to specify/identify the same using device specific
-interrupt name. In such cases only that interrupt can be used as wakeup
-interrupt.
+However if a device has a dedicated interrupt as the wakeup source, then it
+needs to specify/identify it using a device specific interrupt name. In such
+cases only that interrupt can be used as a wakeup interrupt.
+
+While various legacy interrupt names exist, new devices should use "wakeup" as
+the canonical interrupt name.
List of legacy properties and respective binding document
---------------------------------------------------------