The LT9611 HDMI bridge on RubikPi3 is connected to DSI port B. Add
lontium,dsi-port-b property to configure the correct input port.

Signed-off-by: Hongyang Zhao <hongyang.zhao@thundersoft.com>
Reviewed-by: Roger Shimizu <rosh@debian.org>
---
 arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
index 0b64a0b91202..0b27c5343271 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-thundercomm-rubikpi3.dts
@@ -751,6 +751,8 @@ lt9611_codec: hdmi-bridge@39 {
 			    <&lt9611_rst_pin>;
 		pinctrl-names = "default";
 
+		lontium,dsi-port-b;
+
 		ports {
 			#address-cells = <1>;
 			#size-cells = <0>;

-- 
2.43.0