56 lines · yaml
1# SPDX-License-Identifier: GPL-2.02%YAML 1.23---4$id: http://devicetree.org/schemas/power/supply/lego,ev3-battery.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: LEGO MINDSTORMS EV3 Battery8 9maintainers:10 - David Lechner <david@lechnology.com>11 - Sebastian Reichel <sre@kernel.org>12 13description: |14 LEGO MINDSTORMS EV3 has some built-in capability for monitoring the battery.15 It uses 6 AA batteries or a special Li-ion rechargeable battery pack that is16 detected by a key switch in the battery compartment.17 18allOf:19 - $ref: power-supply.yaml#20 21properties:22 compatible:23 const: lego,ev3-battery24 25 io-channels:26 items:27 - description: ADC channel for battery voltage28 - description: ADC channel for battery current29 30 io-channel-names:31 items:32 - const: voltage33 - const: current34 35 rechargeable-gpios:36 maxItems: 137 description: Rechargeable battery indication gpio38 39required:40 - compatible41 - io-channels42 - io-channel-names43 - rechargeable-gpios44 45additionalProperties: false46 47examples:48 - |49 #include <dt-bindings/gpio/gpio.h>50 battery {51 compatible = "lego,ev3-battery";52 io-channels = <&adc 4>, <&adc 3>;53 io-channel-names = "voltage", "current";54 rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>;55 };56