| * Generic system power control capability | |
| Power-management integrated circuits or miscellaneous hardware components are | |
| sometimes able to control the system power. The device driver associated with these | |
| components might need to define this capability, which tells the kernel that | |
| it can be used to switch off the system. The corresponding device must have the | |
| standard property "system-power-controller" in its device node. This property | |
| marks the device as able to control the system power. In order to test if this | |
| property is found programmatically, use the helper function | |
| "of_device_is_system_power_controller" from of.h . | |
| Example: | |
| act8846: act8846@5 { | |
| compatible = "active-semi,act8846"; | |
| system-power-controller; | |
| } |