[PATCH RESEND v4 1/2] ASoC: dt-bindings: irondevice,sma1307: Add initial DT

[Kiseok Jo <kiseok.jo@irondevice.com>]

This adds the schema binding for the Iron Device SMA1307 Amp

Signed-off-by: Kiseok Jo <kiseok.jo@irondevice.com>
---
v3 -> v4
 - Modify to fit the character-per-line format
v2 -> v3
 - Remove ABI documents due to the removal of sysfs in the driver
v1 -> v2
 - Add ABI documents for sysfs
 - Remove the interrupt property as it is no longer used

 .../bindings/sound/irondevice,sma1307.yaml    | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/irondevice,sma1307.yaml

 .../bindings/sound/irondevice,sma1307.yaml    | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/irondevice,sma1307.yaml

diff --git a/Documentation/devicetree/bindings/sound/irondevice,sma1307.yaml b/Documentation/devicetree/bindings/sound/irondevice,sma1307.yaml
new file mode 100644
index 000000000..1e2a038d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/irondevice,sma1307.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/irondevice,sma1307.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Iron Device SMA1307 Audio Amplifier
+
+maintainers:
+  - Kiseok Jo <kiseok.jo@irondevice.com>
+
+description:
+  SMA1307 boosted digital speaker amplifier with feedback-loop.
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - irondevice,sma1307a
+      - irondevice,sma1307aq
+    description:
+      If a 'q' is added, it indicated the product is AEC-Q100
+      qualified for automotive applications. SMA1307A supports
+      both WLCSP and QFN packages. However, SMA1307AQ only
+      supports the QFN package.
+
+  reg:
+    maxItems: 1
+
+  '#sound-dai-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#sound-dai-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        amplifier@1e {
+            compatible = "irondevice,sma1307a";
+            reg = <0x1e>;
+            #sound-dai-cells = <1>;
+        };
+    };
-- 
2.39.2