power/supply/lego%2Cev3-battery.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/lego,ev3-battery.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LEGO MINDSTORMS EV3 Battery
10   - David Lechner <david@lechnology.com>
11   - Sebastian Reichel <sre@kernel.org>
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 is
16   detected by a key switch in the battery compartment.
19   - $ref: power-supply.yaml#
23     const: lego,ev3-battery
25   io-channels:
27       - description: ADC channel for battery voltage
28       - description: ADC channel for battery current
30   io-channel-names:
32       - const: voltage
33       - const: current
35   rechargeable-gpios:
37     description: Rechargeable battery indication gpio
40   - compatible
41   - io-channels
42   - io-channel-names
43   - rechargeable-gpios
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>;