Add bindings for lt8713sx.
Co-developed-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
---
.../bindings/display/bridge/lontium,lt8713sx.yaml | 101 +++++++++++++++++++++
1 file changed, 101 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8713sx.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8713sx.yaml
new file mode 100644
index 000000000000..0a6dc56e337c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8713sx.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lontium,lt8713sx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lontium LT8713SX Type-C/DP1.4 to Type-C/DP1.4/HDMI2.0/DP++ bridge-hub
+
+maintainers:
+ - Tony <syyang@lontium.com>
+
+description:
+ The Lontium LT8713SX is a Type-C/DP1.4 to Type-C/DP1.4/HDMI2.0 converter
+ that integrates one DP input and up to three configurable output interfaces
+ (DP1.4 / HDMI2.0 / DP++), with SST/MST functionality and audio support.
+
+properties:
+ compatible:
+ enum:
+ - lontium,lt8713sx
+
+ reg:
+ maxItems: 1
+
+ vcc-supply:
+ description: Regulator for 3.3V vcc.
+
+ vdd-supply:
+ description: Regulator for 1.1V vdd.
+
+ reset-gpios:
+ description: GPIO connected to active low RESET pin.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ DP port for DP input from soc to bridge chip
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ DP port for DP output from bridge
+
+ port@2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Additional DP port for DP output from bridge
+
+ required:
+ - port@0
+
+required:
+ - compatible
+ - reg
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ bridge@4f {
+ compatible = "lontium,lt8713sx";
+ reg = <0x4f>;
+ reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ lt8713sx_dp_in: endpoint {
+ remote-endpoint = <&mdss_dp0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ lt8713sx_dp0_out: endpoint {
+ remote-endpoint = <&dp0_connector_in>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ lt8713sx_dp1_out: endpoint {
+ remote-endpoint = <&dp1_connector_in>;
+ };
+ };
+ };
+ };
+ };
--
2.34.1On Sun, Dec 28, 2025 at 05:10:39PM +0530, Vishnu Saini wrote:
> Add bindings for lt8713sx.
>
> Co-developed-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
> Signed-off-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
> Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
> ---
> .../bindings/display/bridge/lontium,lt8713sx.yaml | 101 +++++++++++++++++++++
> 1 file changed, 101 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8713sx.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8713sx.yaml
> new file mode 100644
> index 000000000000..0a6dc56e337c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8713sx.yaml
> @@ -0,0 +1,101 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/lontium,lt8713sx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Lontium LT8713SX Type-C/DP1.4 to Type-C/DP1.4/HDMI2.0/DP++ bridge-hub
> +
> +maintainers:
> + - Tony <syyang@lontium.com>
Is he/she aware of this?
> +
> +description:
> + The Lontium LT8713SX is a Type-C/DP1.4 to Type-C/DP1.4/HDMI2.0 converter
> + that integrates one DP input and up to three configurable output interfaces
> + (DP1.4 / HDMI2.0 / DP++), with SST/MST functionality and audio support.
> +
> +properties:
> + compatible:
> + enum:
> + - lontium,lt8713sx
> +
> + reg:
> + maxItems: 1
> +
> + vcc-supply:
> + description: Regulator for 3.3V vcc.
> +
> + vdd-supply:
> + description: Regulator for 1.1V vdd.
> +
> + reset-gpios:
> + description: GPIO connected to active low RESET pin.
> +
> + ports:
> + $ref: /schemas/graph.yaml#/properties/ports
> +
> + properties:
> + port@0:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + DP port for DP input from soc to bridge chip
> +
> + port@1:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + DP port for DP output from bridge
> +
> + port@2:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + Additional DP port for DP output from bridge
Why do you have only two output ports here? The datasheet documents
three ports.
> +
> + required:
> + - port@0
> +
> +required:
> + - compatible
> + - reg
> + - ports
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + bridge@4f {
> + compatible = "lontium,lt8713sx";
> + reg = <0x4f>;
> + reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + lt8713sx_dp_in: endpoint {
> + remote-endpoint = <&mdss_dp0_out>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + lt8713sx_dp0_out: endpoint {
> + remote-endpoint = <&dp0_connector_in>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> + lt8713sx_dp1_out: endpoint {
> + remote-endpoint = <&dp1_connector_in>;
> + };
> + };
> + };
> + };
> + };
>
> --
> 2.34.1
>
--
With best wishes
Dmitry
On 28/12/2025 12:40, Vishnu Saini wrote: > Add bindings for lt8713sx. > > Co-developed-by: Prahlad Valluru <vvalluru@qti.qualcomm.com> > Signed-off-by: Prahlad Valluru <vvalluru@qti.qualcomm.com> > Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com> > --- Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Best regards, Krzysztof
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