132 lines
3.0 KiB
YAML
132 lines
3.0 KiB
YAML
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# 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 <jic23@kernel.org>
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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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