The Realtek RTD2171 chipset is a transparent DisplayPort 1.4 to
HDMI 2.0 bridge.

This chipset is usually found in USB-C To HDMI Adapters and Docks,
or laptops to provide HDMI display output.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml b/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml
index 43cf4df9811a5897843685727a49fd5a90096391..003a1c934f863864400d689cd784990cbc1de3de 100644
--- a/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml
@@ -28,6 +28,7 @@ properties:
       - enum:
           - adi,adv7123
           - dumb-vga-dac
+          - realtek,rtd2171
           - ti,opa362
           - ti,ths8134
           - ti,ths8135

-- 
2.34.1

On Tue, Sep 02, 2025 at 11:00:28AM +0200, Neil Armstrong wrote:
> The Realtek RTD2171 chipset is a transparent DisplayPort 1.4 to
> HDMI 2.0 bridge.
> 
> This chipset is usually found in USB-C To HDMI Adapters and Docks,
> or laptops to provide HDMI display output.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>  Documentation/devicetree/bindings/display/bridge/simple-bridge.yaml | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof