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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/ti,am3359-adc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI AM3359 ADC
maintainers:
- Miquel Raynal <miquel.raynal@bootlin.com>
properties:
compatible:
oneOf:
- enum:
- ti,am3359-adc
- ti,am4372-adc
- items:
- enum:
- ti,am654-adc
- const: ti,am3359-adc
'#io-channel-cells':
const: 1
ti,adc-channels:
description: List of analog inputs available for ADC. AIN0 = 0, AIN1 = 1 and
so on until AIN7 = 7.
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
maxItems: 8
ti,chan-step-opendelay:
description: List of open delays for each channel of ADC in the order of
ti,adc-channels. The value corresponds to the number of ADC clock cycles
to wait after applying the step configuration registers and before sending
the start of ADC conversion. Maximum value is 0x3FFFF.
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
maxItems: 8
ti,chan-step-sampledelay:
description: List of sample delays for each channel of ADC in the order of
ti,adc-channels. The value corresponds to the number of ADC clock cycles
to sample (to hold start of conversion high). Maximum value is 0xFF.
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
maxItems: 8
ti,chan-step-avg:
description: Number of averages to be performed for each channel of ADC. If
average is 16 (this is also the maximum) then input is sampled 16 times
and averaged to get more accurate value. This increases the time taken by
ADC to generate a sample. Maximum value is 16.
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
maxItems: 8
required:
- compatible
- '#io-channel-cells'
- ti,adc-channels
additionalProperties: false
examples:
- |
adc {
compatible = "ti,am3359-adc";
#io-channel-cells = <1>;
ti,adc-channels = <4 5 6 7>;
ti,chan-step-opendelay = <0x098 0x3ffff 0x098 0x0>;
ti,chan-step-sampledelay = <0xff 0x0 0xf 0x0>;
ti,chan-step-avg = <16 2 4 8>;
};
|
