Add device-tree bindings for simple Linux Motion Control devices that are based on 1 or 2 PWM outputs. Signed-off-by: David Jander <david@xxxxxxxxxxx> --- .../bindings/motion/motion-simple-pwm.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/motion/motion-simple-pwm.yaml diff --git a/Documentation/devicetree/bindings/motion/motion-simple-pwm.yaml b/Documentation/devicetree/bindings/motion/motion-simple-pwm.yaml new file mode 100644 index 000000000000..409e3aef6f3f --- /dev/null +++ b/Documentation/devicetree/bindings/motion/motion-simple-pwm.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/motion/motion-simple-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Simple PWM based motor controller + +maintainers: + - David Jander <david@protonic> + +description: | + Simple motor control device based on 1 or 2 PWM outputs + +properties: + compatible: + enum: + - motion-simple-pwm + + pwms: + maxItems: 2 + + pwm-names: + maxItems: 2 + + motion,pwm-inverted: + $ref: /schemas/types.yaml#/definitions/flag + description: + If present, this flag indicates that the PWM signal should be inverted. + The duty-cycle will be scaled from 100% down to 0% instead 0% to 100%. + +required: + - compatible + - pwms + +allOf: + - $ref: /schemas/motion/common.yaml# + +unevaluatedProperties: false + +examples: + - | + // This example shows how to use the TI DRV8873 or similar motor controllers + // with this driver + motion-simple-pwm0 { + compatible = "motion-simple-pwm"; + pwms = <&hpdcm0_pwm 0 50000 0>, + <&hpdcm0_pwm 1 50000 0>; + pwm-names = "left", "right"; + motion,pwm-inverted; + motion,speed-conv-mul = <3600>; + motion,speed-conv-div = <100000>; + motion,acceleration-conv-mul = <3600>; + motion,acceleration-conv-div = <100000>; + }; -- 2.47.2
