diff options
| author | David Lechner <david@lechnology.com> | 2017-04-11 16:05:21 -0500 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2017-04-14 01:41:35 +0200 |
| commit | 11ecb0d234ea7f3b33760281fd4113115c71d5f7 (patch) | |
| tree | 5814c5ad5217c29c0664a57b82198d6a2f64ff9c /Documentation | |
| parent | 53a022d0c1625db0f8e4a29f2913dfdbf4bb7152 (diff) | |
| download | linux-11ecb0d234ea7f3b33760281fd4113115c71d5f7.tar.bz2 | |
dt-bindings: power: supply: New bindings for LEGO MINDSTORMS EV3 battery
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/power/supply/lego_ev3_battery.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power/supply/lego_ev3_battery.txt b/Documentation/devicetree/bindings/power/supply/lego_ev3_battery.txt new file mode 100644 index 000000000000..5485633b1faa --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/lego_ev3_battery.txt @@ -0,0 +1,21 @@ +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>; + }; |