[PATCH 2/2] ASoC: dt-bindings: sma1303: Iron Device SMA1303 Amp

[Kiseok Jo]

This adds the schema binding for the Iron Device SMA1303 amplifier.

Signed-off-by: Kiseok Jo <kiseok.jo at irondevice.com>
---
 .../bindings/sound/irondevice,sma1303.yaml    | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/irondevice,sma1303.yaml

diff --git a/Documentation/devicetree/bindings/sound/irondevice,sma1303.yaml b/Documentation/devicetree/bindings/sound/irondevice,sma1303.yaml
new file mode 100644
index 000000000000..e11e74d367c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/irondevice,sma1303.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/irondevice,sma1303.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Iron Device SMA1303 Audio Amplifier
+
+maintainers:
+  - Kiseok Jo <kiseok.jo at irondevice.com>
+
+description:
+  SMA1303 digital class-D audio amplifier with an integrated boost converter.
+
+allOf:
+  - $ref: name-prefix.yaml#
+
+properties:
+  compatible:
+    const: irondevice,sma1303
+
+  reg:
+    description:
+      I2C address of the amplifier. See the datasheet for possible values.
+
+  init-vol:
+    description:
+      Initial speaker volume level.
+      If specified, the driver will assert speaker volume value at probe time.
+      If not, default hardcoded value(0x30 / 0dB) was reflected.
+    $ref: "/schemas/types.yaml#/definitions/uint32"
+    minimum: 0
+    maximum: 255
+    default: 49
+
+  stereo-two-chip:
+    description:
+      Stereo for two chip solution
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: true
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    i2c_bus {
+		sma1303_amp: sma1303 at 1e {
+			compatible = "irondevice,sma1303";
+			reg = <0x1e>;
+			init-vol = <0x31>;
+			stereo-two-chip;
+		};
+	};
\ No newline at end of file
-- 
2.30.2