drm/bridge: synopsys: dw-hdmi: also allow interlace on bridge

Since we allow interlace on the encoder, also allow it on the bridge
so we can allow interlaced modes when using DRM_BRIDGE_ATTACH_NO_CONNECTOR.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211014152606.2289528-5-narmstrong@baylibre.com

drivers/gpu/drm/bridge/synopsys/dw-hdmi.c

@@ -3413,6 +3413,7 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
 	hdmi->bridge.funcs = &dw_hdmi_bridge_funcs;
 	hdmi->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
 			 | DRM_BRIDGE_OP_HPD;
+	hdmi->bridge.interlace_allowed = true;
 #ifdef CONFIG_OF
 	hdmi->bridge.of_node = pdev->dev.of_node;
 #endif