Message-Id: <20250903123825.1721443-2-syyang@lontium.com>
Date: Wed,  3 Sep 2025 05:38:24 -0700
From: syyang <syyang@...tium.com>
To: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	rfoss@...nel.org
Cc: Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
	jernej.skrabec@...il.com,
	devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	yangsunyun1993@...il.com,
	syyang <syyang@...tium.com>
Subject: [PATCH v1 1/2] This patch adds a new device tree binding documentation.

- New device tree binding documentation at
  Documentation/devicetree/bindings/display/bridge/lontium,lt9611c.yaml

Signed-off-by: syyang <syyang@...tium.com>
---
 .../display/bridge/lontium,lt9611c.yaml       | 123 ++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt9611c.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611c.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611c.yaml
new file mode 100644
index 000000000000..e8f204c71a95
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611c.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lontium,lt9611.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lontium LT9611C 2 Port MIPI to HDMI Bridge
+
+maintainers:
+  - Rob Herring <robh@...nel.org>
+
+description: |
+  The LT9611C are bridge devices which convert DSI to HDMI
+
+properties:
+  compatible:
+    enum:
+      - lontium,lt9611c
+      - lontium,lt9611uxd
+
+  reg:
+    maxItems: 1
+
+  "#sound-dai-cells":
+    const: 0
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+    description: GPIO connected to active high RESET pin.
+
+  vdd-supply:
+    description: Regulator for 1.2V MIPI phy power.
+
+  vcc-supply:
+    description: Regulator for 3.3V IO power.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Primary MIPI port-1 for MIPI input
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Additional MIPI port-2 for MIPI input, used in combination
+          with primary MIPI port-1 to drive higher resolution displays
+
+      port@2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          HDMI port for HDMI output
+
+    required:
+      - port@0
+      - port@2
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - vdd-supply
+  - vcc-supply
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c10 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      hdmi-bridge@41 {
+        compatible = "lontium,lt9611c";
+        reg = <0x41>;
+        #sound-dai-cells = <0>;
+        interrupts-extended = <&pio 128 GPIO_ACTIVE_HIGH>;
+        reset-gpios = <&pio 127 GPIO_ACTIVE_HIGH>;
+        vdd-supply = <&lt9611_1v2>;
+        vcc-supply = <&lt9611_3v3>;
+        dsi-lanes = <4>;
+        status = "okay";
+
+        ports {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          port@0 {
+            reg = <0>;
+            lt9611_a: endpoint {
+              remote-endpoint = <&dsi0_out>;
+            };
+          };
+
+          port@1 {
+            reg = <1>;
+            lt9611_b: endpoint {
+              remote-endpoint = <&dsi1_out>;
+            };
+          };
+
+          port@2 {
+            reg = <2>;
+            lt9611_out: endpoint {
+              remote-endpoint = <&hdmi_con>;
+            };
+          };
+        };
+      };
+    };
+
+...
+
-- 
2.25.1

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