[PATCH 13/13] power: reset: ltc2952: document optional trigger behavior
From: Frans Klaver <hidden>
Date: 2014-10-22 14:32:21
Also in:
linux-pm, lkml
Subsystem:
open firmware and flattened device tree bindings, system reset/shutdown drivers, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sebastian Reichel, Linus Torvalds
Document the fact that the trigger signal is now optional, and describe the behavior when this is used. While at it, fix a typo, and paraphrase a sentence to be less platform specific. Signed-off-by: Frans Klaver <redacted> --- .../devicetree/bindings/power/reset/ltc2952-poweroff.txt | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
index 0c94c63..cd2d7f5 100644
--- a/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
+++ b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt@@ -1,20 +1,23 @@ Binding for the LTC2952 PowerPath controller This chip is used to externally trigger a system shut down. Once the trigger has -been sent, the chips' watchdog has to be reset to gracefully shut down. -If the Linux systems decides to shut down it powers off the platform via the -kill signal. +been sent, the chip's watchdog has to be reset to gracefully shut down. +A full powerdown can be triggered via the kill signal. Required properties: - compatible: Must contain: "lltc,ltc2952" -- trigger-gpios: phandle + gpio-specifier for the GPIO connected to the - chip's trigger line - watchdog-gpios: phandle + gpio-specifier for the GPIO connected to the chip's watchdog line - kill-gpios: phandle + gpio-specifier for the GPIO connected to the chip's kill line +Optional properties: +- trigger-gpios: phandle + gpio-specifier for the GPIO connected to the + chip's trigger line. If this property is not set, the + trigger function is ignored and the chip is kept alive + until an explicit kill signal is received + Example: ltc2952 {
--
2.1.0