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}; 34