[PATCH v4 1/2] dt-bindings: sound: Add generic serial MIDI device

[Daniel Kaehn <kaehndan@gmail.com>]

Adds dt-binding for snd-serial-generic serial MIDI driver

Signed-off-by: Daniel Kaehn <kaehndan@gmail.com>
---
 .../devicetree/bindings/sound/serialmidi.yaml | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/serialmidi.yaml

diff --git a/Documentation/devicetree/bindings/sound/serialmidi.yaml b/Documentation/devicetree/bindings/sound/serialmidi.yaml
new file mode 100644
index 000000000000..38ef49a0c2f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/serialmidi.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/serialmidi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic Serial MIDI Device
+
+maintainers:
+  - Daniel Kaehn <kaehndan@gmail.com>
+
+description: |
+  Generic MIDI interface using a serial device. Can only be set to use standard speeds
+  corresponding to supported baud rates of the underlying serial device. If standard MIDI
+  speed of 31.25 kBaud is needed, configure the clocks of the underlying serial device
+  so that a requested speed of 38.4 kBaud resuts in the standard MIDI baud rate.
+
+properties:
+  compatible:
+    const: serialmidi
+
+  speed:
+    maxItems: 1
+    description: |
+      Speed to set the serial port to when the MIDI device is opened.
+      If not specified, the underlying serial device is allowed to use its configured default speed.
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    serial {
+        midi {
+            compatible = "serialmidi";
+            speed = <38400>;
+        };
+    };
-- 
2.33.0