linux/Documentation/devicetree/bindings/w1/w1-gpio.txt
Daniel Mack dfa32e119d dt-bindings: w1: document generic onewire bindings
This patch adds a generic w1 bindings document that describes how w1
slave deviceses are grouped under master nodes. It also augments the
existing w1-gpio.txt document a bit.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2018-07-11 18:08:32 +02:00

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w1-gpio devicetree bindings
Required properties:
- compatible: "w1-gpio"
- gpios: one or two GPIO specs:
- the first one is used as data I/O pin
- the second one is optional. If specified, it is used as
enable pin for an external pin pullup.
Optional properties:
- linux,open-drain: if specified, the data pin is considered in
open-drain mode.
Also refer to the generic w1.txt document.
Examples:
onewire {
compatible = "w1-gpio";
gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
battery {
// ...
};
};