ltc2952-poweroff.txt 827 B

1234567891011121314151617181920212223242526
  1. Binding for the LTC2952 PowerPath controller
  2. This chip is used to externally trigger a system shut down. Once the trigger has
  3. been sent, the chips' watchdog has to be reset to gracefully shut down.
  4. If the Linux systems decides to shut down it powers off the platform via the
  5. kill signal.
  6. Required properties:
  7. - compatible: Must contain: "lltc,ltc2952"
  8. - trigger-gpios: phandle + gpio-specifier for the GPIO connected to the
  9. chip's trigger line
  10. - watchdog-gpios: phandle + gpio-specifier for the GPIO connected to the
  11. chip's watchdog line
  12. - kill-gpios: phandle + gpio-specifier for the GPIO connected to the
  13. chip's kill line
  14. Example:
  15. ltc2952 {
  16. compatible = "lltc,ltc2952";
  17. trigger-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
  18. watchdog-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
  19. kill-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
  20. };