[PATCH v3 1/2] dt-bindings:bridge: Add Lontiun LT7911EXC eDP to MIPI DSI bridge

syyang
2026-04-29T04:11:20Z

and output signal/dual port mipi.

Signed-off-by: Sunyun Yang <syyang@lontium.com>
---
.../display/bridge/lontium,lt7911exc.yaml | 89 +++++++++++++++++++
1 file changed, 89 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml
new file mode 100644
index 000000000000..0525133443ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lontium,lt7911exc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lontium LT7911EXC eDP to MIPI DSI Bridge
+
+maintainers:
+ - Sunyun Yang <syyang@lontium.com>
+
+properties:
+ compatible:
+ enum:
+ - lontium,lt7911exc
+
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+ description: GPIO connected to RST_ 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: Video port for MIPI DSI output.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Video port for eDP input.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - vdd-supply
+ - vcc-supply
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi-bridge@41 {
+ compatible = "lontium,lt7911exc";
+ reg = <0x41>;
+ reset-gpios = <&gpy8 8 GPIO_ACTIVE_LOW>;
+ vdd-supply = <&lt7911exc_1v2>;
+ vcc-supply = <&lt7911exc_3v3>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ bridge_in: endpoint {
+ remote-endpoint = <&edp_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ bridge_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
+ };
--
2.34.1