| * 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"; |
| status = "okay"; |
| system-power-controller; |
| } |
