diff options
| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-10-31 18:12:34 +0000 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-12-03 19:40:19 +0000 |
| commit | 06d2ff6fe11e410c614e44fbb690382b3a8592fa (patch) | |
| tree | 1fbe905a8289ce69cfd786622375bff82d635413 /Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml | |
| parent | dba91f82d58023d961b793fe35ff1d1305d92aab (diff) | |
dt-bindings:iio:dac:dpot-dac: yaml conversion.
Txt to yaml format conversion. I dropped the example section
describing the measurement ADC, as that isn't strictly part
of this binding.
Uses the new dt-schema/schema/iio/iio-consumer.yaml schema.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20201031181242.742301-3-jic23@kernel.org
Diffstat (limited to 'Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml b/Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml new file mode 100644 index 000000000000..6a7ca8e432d1 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/dpot-dac.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/dpot-dac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DAC emulation using a digital potentiometer + +maintainers: + - Peter Rosin <peda@axentia.se> + +description: | + It is assumed that the dpot is used as a voltage divider between the + current dpot wiper setting and the maximum resistance of the dpot. The + divided voltage is provided by a vref regulator. + + .------. + .-----------. | | + | vref |--' .---. + | regulator |--. | | + '-----------' | | d | + | | p | + | | o | wiper + | | t |<---------+ + | | | + | '---' dac output voltage + | | + '------+------------+ + +properties: + compatible: + const: dpot-dac + + vref-supply: + description: Regulator supplying the voltage divider. + + io-channels: + maxItems: 1 + description: | + Channel node of the dpot to be used for the voltage division. + + io-channel-names: + const: dpot + + "#io-channel-cells": + const: 1 + +required: + - compatible + - vref-supply + - io-channels + - io-channel-names + +additionalProperties: false + +examples: + - | + dac { + compatible = "dpot-dac"; + vref-supply = <®_3v3>; + io-channels = <&dpot 0>; + io-channel-names = "dpot"; + }; +... |