34 lines
1.1 KiB
Plaintext
34 lines
1.1 KiB
Plaintext
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Binding for the LTC2952 PowerPath controller
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This chip is used to externally trigger a system shut down. Once the trigger has
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been sent, the chip's watchdog has to be reset to gracefully shut down.
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A full powerdown can be triggered via the kill signal.
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Required properties:
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- compatible: Must contain: "lltc,ltc2952"
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- watchdog-gpios: phandle + gpio-specifier for the GPIO connected to the
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chip's watchdog line
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- kill-gpios: phandle + gpio-specifier for the GPIO connected to the
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chip's kill line
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Optional properties:
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- trigger-gpios: phandle + gpio-specifier for the GPIO connected to the
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chip's trigger line. If this property is not set, the
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trigger function is ignored and the chip is kept alive
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until an explicit kill signal is received
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- trigger-delay-ms The number of milliseconds to wait after trigger line
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assertion before executing shut down procedure.
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The default is 2500ms.
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Example:
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ltc2952 {
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compatible = "lltc,ltc2952";
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trigger-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
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trigger-delay-ms = <2000>;
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watchdog-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
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kill-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
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};
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