[PATCH 1/2 v16] Documentation: bridge: Add documentation for ps8640 DT properties

Add documentation for DT properties supported by ps8640 DSI-eDP converter. Signed-off-by: Jitao Shi Acked-by: Rob Herring Reviewed-by: Philipp Zabel --- Changes since v15: - No change. Changes since v14: - change

[PATCH 1/2 v16] Documentation: bridge: Add documentation for ps8640 DT properties

Add documentation for DT properties supported by ps8640 DSI-eDP converter. Signed-off-by: Jitao Shi Acked-by: Rob Herring Reviewed-by: Philipp Zabel --- Changes since v15: - No change. Changes since v14: - change mode-sel-gpios as optional. ---