Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / power / reset / ltc2952-poweroff.txt
1 Binding for the LTC2952 PowerPath controller
2
3 This chip is used to externally trigger a system shut down. Once the trigger has
4 been sent, the chips' watchdog has to be reset to gracefully shut down.
5 If the Linux systems decides to shut down it powers off the platform via the
6 kill signal.
7
8 Required properties:
9
10 - compatible:           Must contain: "lltc,ltc2952"
11 - trigger-gpios:        phandle + gpio-specifier for the GPIO connected to the
12                         chip's trigger line
13 - watchdog-gpios:       phandle + gpio-specifier for the GPIO connected to the
14                         chip's watchdog line
15 - kill-gpios:           phandle + gpio-specifier for the GPIO connected to the
16                         chip's kill line
17
18 Example:
19
20 ltc2952 {
21         compatible = "lltc,ltc2952";
22
23         trigger-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
24         watchdog-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
25         kill-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
26 };