[PATCH 1/2] dt-bindings: display: bridge: lt8912b: Add I2S audio input port

[rafael at beims.me]

From: Rafael Beims <rafael.beims at toradex.com>

Add the I2S audio input port for audio over HDMI support.

Signed-off-by: Rafael Beims <rafael.beims at toradex.com>
---
 .../bindings/display/bridge/lontium,lt8912b.yaml          | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
index 2cef25215798..ce555f52beb8 100644
--- a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml
@@ -51,6 +51,11 @@ properties:
           HDMI port, should be connected to a node compatible with the
           hdmi-connector binding.
 
+      port at 2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          I2S Audio input port
+
     required:
       - port at 0
       - port at 1
@@ -76,6 +81,9 @@ properties:
   vdd-supply:
     description: A 1.8V supply that powers the digital part.
 
+  "#sound-dai-cells":
+    const: 0
+
 required:
   - compatible
   - reg
-- 
2.47.2