diff options
Diffstat (limited to 'Documentation/devicetree/bindings/power/wakeup-source.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/power/wakeup-source.txt | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/Documentation/devicetree/bindings/power/wakeup-source.txt b/Documentation/devicetree/bindings/power/wakeup-source.txt index 697333a56d5e..66bb016305f9 100644 --- a/Documentation/devicetree/bindings/power/wakeup-source.txt +++ b/Documentation/devicetree/bindings/power/wakeup-source.txt @@ -3,27 +3,31 @@ 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 --------------------------------------------------------- 1. "gpio-key,wakeup" Documentation/devicetree/bindings/input/gpio-keys{,-polled}.txt 2. "has-tpo" Documentation/devicetree/bindings/rtc/rtc-opal.txt -3. "linux,wakeup" Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt +3. "linux,wakeup" Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml Documentation/devicetree/bindings/mfd/tc3589x.txt - Documentation/devicetree/bindings/input/touchscreen/ads7846.txt -4. "linux,keypad-wakeup" Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt -5. "linux,input-wakeup" Documentation/devicetree/bindings/input/samsung-keypad.txt + Documentation/devicetree/bindings/input/touchscreen/ti,ads7843.yaml +4. "linux,keypad-wakeup" Documentation/devicetree/bindings/input/qcom,pm8921-keypad.yaml +5. "linux,input-wakeup" Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml 6. "nvidia,wakeup-source" Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt Examples |