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linux-7.2.3/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml

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+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology LTC263x and LTC2654 Rail-to-Rail DAC
+
+maintainers:
+  - Michael Hennerich <michael.hennerich@analog.com>
+
+description: |
+  Bindings for the Linear Technology LTC2632/2634/2636/2654 DAC
+  Datasheet can be found here:
+    https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
+    https://www.analog.com/media/en/technical-documentation/data-sheets/2654f.pdf
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - lltc,ltc2632-l12
+          - lltc,ltc2632-l10
+          - lltc,ltc2632-l8
+          - lltc,ltc2632-h12
+          - lltc,ltc2632-h10
+          - lltc,ltc2632-h8
+          - lltc,ltc2634-l12
+          - lltc,ltc2634-l10
+          - lltc,ltc2634-l8
+          - lltc,ltc2634-h12
+          - lltc,ltc2634-h10
+          - lltc,ltc2634-h8
+          - lltc,ltc2636-l12
+          - lltc,ltc2636-l10
+          - lltc,ltc2636-l8
+          - lltc,ltc2636-h12
+          - lltc,ltc2636-h10
+          - lltc,ltc2636-h8
+          - lltc,ltc2654-l16
+          - lltc,ltc2654-h16
+      - items:
+          - enum:
+              - lltc,ltc2654-l12
+          - const: lltc,ltc2634-l12
+      - items:
+          - enum:
+              - lltc,ltc2654-h12
+          - const: lltc,ltc2634-h12
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 2000000
+
+  vref-supply:
+    description:
+      Phandle to the external reference voltage supply. This should
+      only be set if there is an external reference voltage connected to the VREF
+      pin. If the property is not set the internal reference is used.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    vref: regulator-vref {
+        compatible = "regulator-fixed";
+        regulator-name = "vref-ltc2632";
+        regulator-min-microvolt = <1250000>;
+        regulator-max-microvolt = <1250000>;
+        regulator-always-on;
+    };
+
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        dac@0 {
+            compatible = "lltc,ltc2632-l12";
+            reg = <0>;    /* CS0 */
+            spi-max-frequency = <1000000>;
+            vref-supply = <&vref>;
+        };
+    };
+...