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6918ed88bf
Converted to maintain the requirement for Vdd-supply as per original file. It is possible we could relax this requirement to make it at least one of Vdd-supply and REF-supply. We need to establish the scaling of the output channel and if REF-supply is provided that is used instead of Vdd-supply, hence I cannot see why a dummy regulator cannot be used for Vdd-supply if this happens. For now, let us keep it simple. Drop adi,use-external-reference from binding example as no such binding exists. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Rob Herring <robh@kernel.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20201031134110.724233-18-jic23@kernel.org
51 lines
979 B
YAML
51 lines
979 B
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/dac/adi,ad7303.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices AD7303 DAC
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maintainers:
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- Lars-Peter Clausen <lars@metafoo.de>
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properties:
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compatible:
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const: adi,ad7303
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reg:
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maxItems: 1
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Vdd-supply:
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description:
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Used to calculate output channel scalling if REF-supply not specified.
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REF-supply:
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description:
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If not provided, Vdd/2 is used as the reference voltage.
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spi-max-frequency:
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maximum: 30000000
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required:
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- compatible
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- reg
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- Vdd-supply
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additionalProperties: false
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examples:
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- |
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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dac@4 {
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compatible = "adi,ad7303";
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reg = <4>;
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spi-max-frequency = <10000000>;
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Vdd-supply = <&vdd_supply>;
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REF-supply = <&vref_supply>;
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};
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};
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...
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