76 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/iio/adc/ti,am3359-adc.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: TI AM3359 ADC8 9maintainers:10 - Miquel Raynal <miquel.raynal@bootlin.com>11 12properties:13 compatible:14 oneOf:15 - enum:16 - ti,am3359-adc17 - ti,am4372-adc18 - items:19 - enum:20 - ti,am654-adc21 - const: ti,am3359-adc22 23 '#io-channel-cells':24 const: 125 26 ti,adc-channels:27 description: List of analog inputs available for ADC. AIN0 = 0, AIN1 = 1 and28 so on until AIN7 = 7.29 $ref: /schemas/types.yaml#/definitions/uint32-array30 minItems: 131 maxItems: 832 33 ti,chan-step-opendelay:34 description: List of open delays for each channel of ADC in the order of35 ti,adc-channels. The value corresponds to the number of ADC clock cycles36 to wait after applying the step configuration registers and before sending37 the start of ADC conversion. Maximum value is 0x3FFFF.38 $ref: /schemas/types.yaml#/definitions/uint32-array39 minItems: 140 maxItems: 841 42 ti,chan-step-sampledelay:43 description: List of sample delays for each channel of ADC in the order of44 ti,adc-channels. The value corresponds to the number of ADC clock cycles45 to sample (to hold start of conversion high). Maximum value is 0xFF.46 $ref: /schemas/types.yaml#/definitions/uint32-array47 minItems: 148 maxItems: 849 50 ti,chan-step-avg:51 description: Number of averages to be performed for each channel of ADC. If52 average is 16 (this is also the maximum) then input is sampled 16 times53 and averaged to get more accurate value. This increases the time taken by54 ADC to generate a sample. Maximum value is 16.55 $ref: /schemas/types.yaml#/definitions/uint32-array56 minItems: 157 maxItems: 858 59required:60 - compatible61 - '#io-channel-cells'62 - ti,adc-channels63 64additionalProperties: false65 66examples:67 - |68 adc {69 compatible = "ti,am3359-adc";70 #io-channel-cells = <1>;71 ti,adc-channels = <4 5 6 7>;72 ti,chan-step-opendelay = <0x098 0x3ffff 0x098 0x0>;73 ti,chan-step-sampledelay = <0xff 0x0 0xf 0x0>;74 ti,chan-step-avg = <16 2 4 8>;75 };76