| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/power/supply/lego,ev3-battery.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: LEGO MINDSTORMS EV3 Battery |
| |
| maintainers: |
| - David Lechner <david@lechnology.com> |
| - Sebastian Reichel <sre@kernel.org> |
| |
| description: | |
| 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. |
| |
| allOf: |
| - $ref: power-supply.yaml# |
| |
| properties: |
| compatible: |
| const: lego,ev3-battery |
| |
| io-channels: |
| items: |
| - description: ADC channel for battery voltage |
| - description: ADC channel for battery current |
| |
| io-channel-names: |
| items: |
| - const: voltage |
| - const: current |
| |
| rechargeable-gpios: |
| maxItems: 1 |
| description: Rechargeable battery indication gpio |
| |
| required: |
| - compatible |
| - io-channels |
| - io-channel-names |
| - rechargeable-gpios |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/gpio/gpio.h> |
| battery { |
| compatible = "lego,ev3-battery"; |
| io-channels = <&adc 4>, <&adc 3>; |
| io-channel-names = "voltage", "current"; |
| rechargeable-gpios = <&gpio 136 GPIO_ACTIVE_LOW>; |
| }; |
