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Message-ID: <20221003105903.229-3-Ibrahim.Tilki@analog.com>
Date: Mon, 3 Oct 2022 13:59:02 +0300
From: Ibrahim Tilki <Ibrahim.Tilki@...log.com>
To: <jic23@...nel.org>
CC: Ibrahim Tilki <Ibrahim.Tilki@...log.com>,
<linux-iio@...r.kernel.org>, <Nuno.Sa@...log.com>,
<Nurettin.Bolucu@...log.com>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v8 2/3] dt-bindings: iio: adc: add adi,max11410.yaml
Adding devicetree binding documentation for max11410 adc.
Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@...log.com>
---
.../bindings/iio/adc/adi,max11410.yaml | 177 ++++++++++++++++++
1 file changed, 177 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,max11410.yaml
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,max11410.yaml b/Documentation/devicetree/bindings/iio/adc/adi,max11410.yaml
new file mode 100644
index 0000000000..53f9feff13
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,max11410.yaml
@@ -0,0 +1,177 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2022 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,max11410.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX11410 ADC device driver
+
+maintainers:
+ - Ibrahim Tilki <Ibrahim.Tilki@...log.com>
+
+description: |
+ Bindings for the Analog Devices MAX11410 ADC device. Datasheet can be
+ found here:
+ https://datasheets.maximintegrated.com/en/ds/MAX11410.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,max11410
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 2
+
+ interrupt-names:
+ description: Name of the gpio pin of max11410 used for IRQ
+ minItems: 1
+ items:
+ - enum: [gpio0, gpio1]
+ - const: gpio1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ avdd-supply:
+ description: Optional avdd supply. Used as reference when no explicit reference supplied.
+
+ vref0p-supply:
+ description: vref0p supply can be used as reference for conversion.
+
+ vref1p-supply:
+ description: vref1p supply can be used as reference for conversion.
+
+ vref2p-supply:
+ description: vref2p supply can be used as reference for conversion.
+
+ vref0n-supply:
+ description: vref0n supply can be used as reference for conversion.
+
+ vref1n-supply:
+ description: vref1n supply can be used as reference for conversion.
+
+ vref2n-supply:
+ description: vref2n supply can be used as reference for conversion.
+
+ spi-max-frequency:
+ maximum: 8000000
+
+patternProperties:
+ "^channel(@[0-9])?$":
+ $ref: adc.yaml
+ type: object
+ description: Represents the external channels which are connected to the ADC.
+
+ properties:
+ reg:
+ description: The channel number in single-ended mode.
+ minimum: 0
+ maximum: 9
+
+ adi,reference:
+ description: |
+ Select the reference source to use when converting on
+ the specific channel. Valid values are:
+ 0: VREF0P/VREF0N
+ 1: VREF1P/VREF1N
+ 2: VREF2P/VREF2N
+ 3: AVDD/AGND
+ 4: VREF0P/AGND
+ 5: VREF1P/AGND
+ 6: VREF2P/AGND
+ If this field is left empty, AVDD/AGND is selected.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2, 3, 4, 5, 6]
+ default: 3
+
+ adi,input-mode:
+ description: |
+ Select signal path of input channels. Valid values are:
+ 0: Buffered, low-power, unity-gain path (default)
+ 1: Bypass path
+ 2: PGA path
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+ default: 0
+
+ diff-channels: true
+
+ bipolar: true
+
+ settling-time-us: true
+
+ adi,buffered-vrefp:
+ description: Enable buffered mode for positive reference.
+ type: boolean
+
+ adi,buffered-vrefn:
+ description: Enable buffered mode for negative reference.
+ type: boolean
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ reg = <0>;
+ compatible = "adi,max11410";
+ spi-max-frequency = <8000000>;
+
+ interrupt-parent = <&gpio>;
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-names = "gpio1";
+
+ avdd-supply = <&adc_avdd>;
+
+ vref1p-supply = <&adc_vref1p>;
+ vref1n-supply = <&adc_vref1n>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ };
+
+ channel@1 {
+ reg = <1>;
+ diff-channels = <2 3>;
+ adi,reference = <1>;
+ bipolar;
+ settling-time-us = <100000>;
+ };
+
+ channel@2 {
+ reg = <2>;
+ diff-channels = <7 9>;
+ adi,reference = <5>;
+ adi,input-mode = <2>;
+ settling-time-us = <50000>;
+ };
+ };
+ };
--
2.25.1
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