ltc2952-poweroff.txt

 1Binding for the LTC2952 PowerPath controller
 2
 3This chip is used to externally trigger a system shut down. Once the trigger has
 4been sent, the chip's watchdog has to be reset to gracefully shut down.
 5A full powerdown can be triggered via the kill signal.
 6
 7Required properties:
 8
 9- compatible:		Must contain: "lltc,ltc2952"
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
15Optional properties:
16- trigger-gpios:	phandle + gpio-specifier for the GPIO connected to the
17			chip's trigger line. If this property is not set, the
18			trigger function is ignored and the chip is kept alive
19			until an explicit kill signal is received
20- trigger-delay-ms	The number of milliseconds to wait after trigger line
21			assertion before executing shut down procedure.
22			The default is 2500ms.
23
24Example:
25
26ltc2952 {
27	compatible = "lltc,ltc2952";
28
29	trigger-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
30	trigger-delay-ms = <2000>;
31	watchdog-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
32	kill-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
33};