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dt-bindings: power: supply: New bindings for LEGO MINDSTORMS EV3 battery

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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>
This commit is contained in:
David Lechner 2017-04-11 16:05:21 -05:00 committed by Sebastian Reichel
parent 53a022d0c1
commit 11ecb0d234
1 changed files with 21 additions and 0 deletions
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Documentation/devicetree/bindings/power/supply/lego_ev3_battery.txt Normal file
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LEGO MINDSTORMS EV3 Battery
~~~~~~~~~~~~~~~~~~~~~~~~~~~
LEGO MINDSTORMS EV3 has some built-in capability for monitoring the battery.
It uses 6 AA batteries or a special Li-ion rechargeable battery pack that is
detected by a key switch in the battery compartment.
Required properties:
- compatible: Must be "lego,ev3-battery"
- io-channels: phandles to analog inputs for reading voltage and current
- io-channel-names: Must be "voltage", "current"
- rechargeable-gpios: phandle to the rechargeable battery indication gpio
Example:
battery {
compatible = "lego,ev3-battery";
io-channels = <&adc 4>, <&adc 3>;
io-channel-names = "voltage", "current";
rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>;
};