Messages in this thread Patch in this message | | | From | Frans Klaver <> | Subject | [PATCH v3 2/2] power: reset: document LTC2952 poweroff support | Date | Mon, 6 Oct 2014 10:40:36 +0200 |
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From: René Moll <linux@r-moll.nl>
Signed-off-by: René Moll <linux@r-moll.nl> Signed-off-by: Tjerk Hofmeijer <tjerk.hofmeijer@xsens.com> Signed-off-by: Frans Klaver <frans.klaver@xsens.com> --- .../bindings/power/reset/ltc2952-poweroff.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
diff --git a/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt new file mode 100644 index 0000000..3d15814 --- /dev/null +++ b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt @@ -0,0 +1,31 @@ +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. + +Required properties: + +- compatible: Must contain: "lltc,ltc2952" +- 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 { + compatible = "lltc,ltc2952"; + + trigger-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; + watchdog-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>; + kill-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>; +}; -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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