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

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Message-ID: <20250203192401.244651-2-rafael@beims.me>
Date: Mon,  3 Feb 2025 16:23:55 -0300
From: rafael@...ms.me
To: Adrien Grassein <adrien.grassein@...il.com>,
	Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Joao Paulo Goncalves <joao.goncalves@...adex.com>
Cc: Rafael Beims <rafael.beims@...adex.com>,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] dt-bindings: display: bridge: lt8912b: Add I2S audio input port

From: Rafael Beims <rafael.beims@...adex.com>

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

Signed-off-by: Rafael Beims <rafael.beims@...adex.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@2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          I2S Audio input port
+
     required:
       - port@0
       - port@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