| * QNAP Power Off |
| |
| QNAP NAS devices have a microcontroller controlling the main power |
| supply. This microcontroller is connected to UART1 of the Kirkwood and |
| Orion5x SoCs. Sending the character 'A', at 19200 baud, tells the |
| microcontroller to turn the power off. This driver adds a handler to |
| pm_power_off which is called to turn the power off. |
| |
| Synology NAS devices use a similar scheme, but a different baud rate, |
| 9600, and a different character, '1'. |
| |
| Required Properties: |
| - compatible: Should be "qnap,power-off" or "synology,power-off" |
| |
| - reg: Address and length of the register set for UART1 |
| - clocks: tclk clock |