ASoC: dt-bindings: max98396: Document data monitor properties

This device features a data monitor that puts the device in software reset
upon a configurable set of events.

Signed-off-by: Daniel Mack <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/sound/adi,max98396.yaml

···
       interleaved on a single output channel.
     type: boolean
 
+  adi,dmon-stuck-enable:
+    description:
+      Enables the "data monitor stuck" feature. Once the data monitor is
+      enabled, it actively monitors the selected input data (from DIN) to the
+      speaker amplifier. Once a data error is detected, the data monitor
+      automatically places the device into software shutdown.
+    type: boolean
+
+  adi,dmon-stuck-threshold-bits:
+    description:
+      Sets the threshold for the "data monitor stuck" feature, in bits.
+    enum: [9, 11, 13, 15]
+    default: 15
+
+  adi,dmon-magnitude-enable:
+    description:
+      Enables the "data monitor magnitude" feature. Once the data monitor is
+      enabled, it actively monitors the selected input data (from DIN) to the
+      speaker amplifier. Once a data error is detected, the data monitor
+      automatically places the device into software shutdown.
+    type: boolean
+
+  adi,dmon-magnitude-threshold-bits:
+    description:
+      Sets the threshold for the "data monitor magnitude" feature, in bits.
+    enum: [2, 3, 4, 5]
+    default: 5
+
+  adi,dmon-duration-ms:
+    description:
+      Sets the duration for the "data monitor" feature, in milliseconds.
+    enum: [64, 256, 1024, 4096]
+    default: 64
+
   reset-gpios:
     maxItems: 1