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This add a new device tree binding for LEGO MINDSTORMS EV3 battery. The EV3 has some built-in capability for monitoring the attached battery. Signed-off-by: David Lechner <david@lechnology.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
22 lines
719 B
Plaintext
22 lines
719 B
Plaintext
LEGO MINDSTORMS EV3 Battery
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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LEGO MINDSTORMS EV3 has some built-in capability for monitoring the battery.
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It uses 6 AA batteries or a special Li-ion rechargeable battery pack that is
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detected by a key switch in the battery compartment.
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Required properties:
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- compatible: Must be "lego,ev3-battery"
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- io-channels: phandles to analog inputs for reading voltage and current
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- io-channel-names: Must be "voltage", "current"
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- rechargeable-gpios: phandle to the rechargeable battery indication gpio
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Example:
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battery {
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compatible = "lego,ev3-battery";
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io-channels = <&adc 4>, <&adc 3>;
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io-channel-names = "voltage", "current";
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rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>;
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};
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