[PATCH v2 3/7] dt-bindings: sound: sophgo: add CV1800B internal ADC codec

Document the internal ADC audio codec integrated in the Sophgo
CV1800B SoC.

Signed-off-by: Anton D. Stavinskii <[email protected]>
---
 .../bindings/sound/sophgo,cv1800b-sound-adc.yaml   | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/sophgo,cv1800b-sound-adc.yaml b/Documentation/devicetree/bindings/sound/sophgo,cv1800b-sound-adc.yaml
new file mode 100644
index 000000000000..339b60e317e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/sophgo,cv1800b-sound-adc.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/sophgo,cv1800b-sound-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800B Internal ADC Codec
+
+maintainers:
+  - Anton D. Stavinskii <[email protected]>
+
+description: |
+  Internal ADC audio codec integrated in the Sophgo CV1800B SoC.
+  The codec exposes a single DAI and is intended to be connected
+  to an I2S/TDM controller via an ASoC machine driver.
+
+properties:
+  compatible:
+    const: sophgo,cv1800b-sound-adc
+
+  reg:
+    maxItems: 1
+    description:
+      Base address and size of the ADC register block.
+
+  "#sound-dai-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    audio-codec@300a100 {
+      compatible = "sophgo,cv1800b-sound-adc";
+      reg = <0x0300a100 0x100>;
+      #sound-dai-cells = <0>;
+    };
+...

-- 
2.43.0