[PATCH 26/27] drm: rcar-du: Use drm_bridge_connector_init() helper

[Laurent Pinchart]

Use the drm_bridge_connector_init() helper to create a drm_connector for
each output, instead of relying on the bridge drivers doing so. Attach
the bridges with the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag to instruct
them not to create a connector.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
index 72bf6e2c7933..f6981e6444bc 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
@@ -10,6 +10,7 @@
 #include <linux/export.h>
 
 #include <drm/drm_bridge.h>
+#include <drm/drm_bridge_connector.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_modeset_helper_vtables.h>
 #include <drm/drm_panel.h>
@@ -49,6 +50,7 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu,
 			 struct device_node *enc_node)
 {
 	struct rcar_du_encoder *renc;
+	struct drm_connector *connector;
 	struct drm_encoder *encoder;
 	struct drm_bridge *bridge;
 	int ret;
@@ -109,17 +111,26 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu,
 	if (ret < 0)
 		goto done;
 
-	/*
-	 * Attach the bridge to the encoder. The bridge will create the
-	 * connector.
-	 */
-	ret = drm_bridge_attach(encoder, bridge, NULL, 0);
+	/* Attach the bridge to the encoder. */
+	ret = drm_bridge_attach(encoder, bridge, NULL,
+				DRM_BRIDGE_ATTACH_NO_CONNECTOR);
 	if (ret) {
 		dev_err(rcdu->dev, "failed to attach bridge for output %u\n",
 			output);
 		goto done;
 	}
 
+	/* Create the connector for the chain of bridges. */
+	connector = drm_bridge_connector_init(rcdu->ddev, encoder);
+	if (IS_ERR(connector)) {
+		dev_err(rcdu->dev,
+			"failed to created connector for output %u\n", output);
+		ret = PTR_ERR(connector);
+		goto done;
+	}
+
+	ret = drm_connector_attach_encoder(connector, encoder);
+
 done:
 	if (ret < 0) {
 		if (encoder->name)
-- 
Regards,

Laurent Pinchart