drm/bridge: aux: allow interlaced and YCbCr 420 output

As both aux bridges are merely passthrough bridges, mark them as
supporting interlaced and YCbCr 420 data. Other bridges in the chain
still might limit interlaced and YCbCr 420 data support on the
corresponding connector.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241019-bridge-yuv420-v1-4-d74efac9e4e6@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/bridge/aux-bridge.c

@@ -120,6 +120,10 @@ static int drm_aux_bridge_probe(struct auxiliary_device *auxdev,
 	data->bridge.funcs = &drm_aux_bridge_funcs;
 	data->bridge.of_node = data->dev->of_node;
 
+	/* passthrough data, allow everything */
+	data->bridge.interlace_allowed = true;
+	data->bridge.ycbcr_420_allowed = true;
+
 	return devm_drm_bridge_add(data->dev, &data->bridge);
 }
 

drivers/gpu/drm/bridge/aux-hpd-bridge.c

@@ -180,6 +180,10 @@ static int drm_aux_hpd_bridge_probe(struct auxiliary_device *auxdev,
 	data->bridge.ops = DRM_BRIDGE_OP_HPD;
 	data->bridge.type = id->driver_data;
 
+	/* passthrough data, allow everything */
+	data->bridge.interlace_allowed = true;
+	data->bridge.ycbcr_420_allowed = true;
+
 	auxiliary_set_drvdata(auxdev, data);
 
 	return devm_drm_bridge_add(data->dev, &data->bridge);