dt-bindings: iio: dac: microchip,mcp4922: Add missing binding document

Simple binding for this family of microchip DACs. Signed-off-by: Jonathan Cameron <[email protected]> Cc: Michael Welling <[email protected]> Reviewed-by: Rob Herring <[email protected]> Acked-by: Nuno Sá <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2026-10-07 05:31:08 -04:00 · 2021-07-19 09:51:59 +01:00
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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/microchip,mcp4922.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip MCP4902, MCP4912 and MPC4922 dual output SPI DACs
+
+maintainers:
+  - Jonathan Cameron <[email protected]>
+  - Michael Welling <[email protected]>
+
+properties:
+  compatible:
+    enum:
+      - microchip,mcp4902
+      - microchip,mcp4912
+      - microchip,mcp4922
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency: true
+
+  vref-supply: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - vref-supply
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        dac@0 {
+            compatible = "microchip,mcp4912";
+            reg = <0>;
+            vref-supply = <&dac_vref>;
+        };
+    };
+...