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131 lines
3.0 KiB
131 lines
3.0 KiB
# 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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$id: http://devicetree.org/schemas/iio/adc/fsl,imx25-gcq.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Freescale ADC GCQ device |
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description: |
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This is a generic conversion queue device that can convert any of the |
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analog inputs using the ADC unit of the i.MX25. |
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maintainers: |
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- Jonathan Cameron <[email protected]> |
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properties: |
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compatible: |
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const: fsl,imx25-gcq |
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reg: |
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maxItems: 1 |
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interrupts: |
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maxItems: 1 |
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vref-ext-supply: |
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description: |
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The regulator supplying the ADC reference voltage. |
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Required when at least one subnode uses the this reference. |
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vref-xp-supply: |
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description: |
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The regulator supplying the ADC reference voltage on pin XP. |
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Required when at least one subnode uses this reference. |
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vref-yp-supply: |
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description: |
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The regulator supplying the ADC reference voltage on pin YP. |
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Required when at least one subnode uses this reference. |
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"#io-channel-cells": |
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const: 1 |
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"#address-cells": |
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const: 1 |
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"#size-cells": |
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const: 0 |
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required: |
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- compatible |
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- reg |
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- interrupts |
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- "#address-cells" |
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- "#size-cells" |
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patternProperties: |
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"[a-z][a-z0-9]+@[0-9a-f]+$": |
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type: object |
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description: |
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Child nodes used to define the reference voltages used for each channel |
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properties: |
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reg: |
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description: | |
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Number of the analog input. |
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0: xp |
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1: yp |
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2: xn |
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3: yn |
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4: wiper |
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5: inaux0 |
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6: inaux1 |
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7: inaux2 |
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items: |
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- minimum: 0 |
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maximum: 7 |
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fsl,adc-refp: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: | |
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Specifies the positive reference input as defined in |
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<dt-bindings/iio/adc/fsl-imx25-gcq.h> |
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0: YP voltage reference |
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1: XP voltage reference |
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2: External voltage reference |
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3: Internal voltage reference (default) |
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minimum: 0 |
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maximum: 3 |
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fsl,adc-refn: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: | |
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Specifies the negative reference input as defined in |
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<dt-bindings/iio/adc/fsl-imx25-gcq.h> |
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0: XN ground reference |
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1: YN ground reference |
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2: Internal ground reference |
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3: External ground reference (default) |
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minimum: 0 |
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maximum: 3 |
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required: |
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- reg |
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additionalProperties: false |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/iio/adc/fsl-imx25-gcq.h> |
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soc { |
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#address-cells = <1>; |
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#size-cells = <1>; |
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adc@50030800 { |
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compatible = "fsl,imx25-gcq"; |
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reg = <0x50030800 0x60>; |
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interrupt-parent = <&tscadc>; |
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interrupts = <1>; |
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#address-cells = <1>; |
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#size-cells = <0>; |
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inaux@5 { |
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reg = <5>; |
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fsl,adc-refp = <MX25_ADC_REFP_INT>; |
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fsl,adc-refn = <MX25_ADC_REFN_NGND>; |
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}; |
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}; |
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}; |
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...
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