1 Rotary encoder DT bindings
4 - gpios: a spec for two GPIOs to be used
7 - linux,axis: the input subsystem axis to map to this rotary encoder.
8 Defaults to 0 (ABS_X / REL_X)
9 - rotary-encoder,steps: Number of steps in a full turnaround of the
10 encoder. Only relevant for absolute axis. Defaults to 24 which is a
11 typical value for such devices.
12 - rotary-encoder,relative-axis: register a relative axis rather than an
13 absolute one. Relative axis will only generate +1/-1 events on the input
14 device, hence no steps need to be passed.
15 - rotary-encoder,rollover: Automatic rollove when the rotary value becomes
16 greater than the specified steps or smaller than 0. For absolute axis only.
17 - rotary-encoder,half-period: Makes the driver work on half-period mode.
19 See Documentation/input/rotary-encoder.txt for more information.
24 compatible = "rotary-encoder";
25 gpios = <&gpio 19 1>, <&gpio 20 0>; /* GPIO19 is inverted */
26 linux,axis = <0>; /* REL_X */
27 rotary-encoder,relative-axis;
31 compatible = "rotary-encoder";
32 gpios = <&gpio 21 0>, <&gpio 22 0>;
33 linux,axis = <1>; /* ABS_Y */
34 rotary-encoder,steps = <24>;
35 rotary-encoder,rollover;