dt-bindings: iio: adc: add ad458x

Add devicetree bindings for ad458x DAS family.

Signed-off-by: Antoniu Miclaus <[email protected]>

Documentation/devicetree/bindings/iio/adc/adi,ad485x.yaml

@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2022 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad485x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD485X DAS family device driver
+
+maintainers:
+  - Sergiu Cuciurean <[email protected]>
+  - Dragos Bogdan <[email protected]>
+  - Antoniu Miclaus <[email protected]>
+
+description: |
+  Analog Devices AD485X DAS family
+
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ad4858.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,ad4858
+      - adi,ad4857
+      - adi,ad4856
+      - adi,ad4855
+      - adi,ad4854
+      - adi,ad4853
+      - adi,ad4852
+      - adi,ad4851
+      - adi,ad4858i
+
+  reg:
+    maxItems: 1
+
+  vcc-supply: true
+
+  vdd-supply: true
+
+  vddh-supply: true
+
+  vio-supply: true
+
+  pwms:
+    maxItems: 1
+
+  pwm-names:
+    const: cnv
+
+  io-backends:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 100000000
+
+required:
+  - compatible
+  - reg
+  - vcc-supply
+  - vdd-supply
+  - vddh-supply
+  - vio-supply
+  - pwms
+  - pwm-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@0{
+            compatible = "adi,ad4858";
+            reg = <0>;
+            spi-max-frequency = <10000000>;
+            vcc-supply = <&vcc>;
+            vdd-supply = <&vdd>;
+            vddh-supply = <&vddh>;
+            vio-supply = <&vio>;
+            pwms = <&pwm_gen 0 0>;
+            pwm-names = "cnv";
+            io-backends = <&iio_backend>;
+        };
+    };
+...