iio: dac: Add AD5413 support

Documentation/devicetree/bindings/iio/dac/adi,ad5413.yaml

@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/adi,ad5413.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD5413 DAC
+
+maintainers:
+  - Bruce Tsao <[email protected]>
+
+properties:
+  compatible:
+    const: adi,ad5413
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 50000000
+
+  reset-gpios: true
+
+  avdd-supply:
+    description: Analog positive supply (AVDD)
+
+  dvdd-supply:
+    description: Digital positive supply (DVDD)
+
+  avss-supply:
+    description: Analog negative supply (AVSS)
+
+  adi,range-microvolt:
+    description: Voltage output range <min, max> in microvolts
+    oneOf:
+      - items:
+          - const: -10500000
+          - const: 10500000
+      - items:
+          - const: -12600000
+          - const: 12600000
+
+  adi,range-microamp:
+    description: Current output range <min, max> in microamps
+    items:
+      - const: 0
+      - const: 24000
+
+  adi,slew-time-us:
+    description: Output digital slew control time in microseconds
+    minimum: 0
+    maximum: 1000000
+    default: 0
+
+required:
+  - compatible
+  - reg
+  - spi-max-frequency
+  - avdd-supply
+  - dvdd-supply
+  - avss-supply
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+  - oneOf:
+      - required: ['adi,range-microamp']
+      - required: ['adi,range-microvolt']
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        dac@0 {
+            compatible = "adi,ad5413";
+            reg = <0>;
+            spi-max-frequency = <1000000>;
+            reset-gpios = <&gpio 0 1>; /* 1 = active low */
+            avdd-supply = <&avdd>;
+            dvdd-supply = <&dvdd>;
+            avss-supply = <&avss>;
+            adi,range-microamp = <0 24000>;
+            adi,slew-time-us = <125>;
+        };
+    };