| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | * Generic system power control capability |
| 2 | |
| 3 | Power-management integrated circuits or miscellaneous hardware components are |
| 4 | sometimes able to control the system power. The device driver associated with these |
| 5 | components might need to define this capability, which tells the kernel that |
| 6 | it can be used to switch off the system. The corresponding device must have the |
| 7 | standard property "system-power-controller" in its device node. This property |
| 8 | marks the device as able to control the system power. In order to test if this |
| 9 | property is found programmatically, use the helper function |
| 10 | "of_device_is_system_power_controller" from of.h . |
| 11 | |
| 12 | Example: |
| 13 | |
| 14 | act8846: act8846@5 { |
| 15 | compatible = "active-semi,act8846"; |
| 16 | system-power-controller; |
| 17 | } |