drm/bridge: megachips: add helper to create connector

Factor out connector creation to a small helper function.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Cc: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200726203324.3722593-10-sam@ravnborg.org

drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c

@@ -191,6 +191,32 @@ static const struct drm_connector_funcs ge_b850v3_lvds_connector_funcs = {
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
+static int ge_b850v3_lvds_create_connector(struct drm_bridge *bridge)
+{
+	struct drm_connector *connector = &ge_b850v3_lvds_ptr->connector;
+	int ret;
+
+	if (!bridge->encoder) {
+		DRM_ERROR("Parent encoder object not found");
+		return -ENODEV;
+	}
+
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+	drm_connector_helper_add(connector,
+				 &ge_b850v3_lvds_connector_helper_funcs);
+
+	ret = drm_connector_init(bridge->dev, connector,
+				 &ge_b850v3_lvds_connector_funcs,
+				 DRM_MODE_CONNECTOR_DisplayPort);
+	if (ret) {
+		DRM_ERROR("Failed to initialize connector with drm\n");
+		return ret;
+	}
+
+	return drm_connector_attach_encoder(connector, bridge->encoder);
+}
+
 static irqreturn_t ge_b850v3_lvds_irq_handler(int irq, void *dev_id)
 {
 	struct i2c_client *stdp4028_i2c
@@ -209,7 +235,6 @@ static irqreturn_t ge_b850v3_lvds_irq_handler(int irq, void *dev_id)
 static int ge_b850v3_lvds_attach(struct drm_bridge *bridge,
 				 enum drm_bridge_attach_flags flags)
 {
-	struct drm_connector *connector = &ge_b850v3_lvds_ptr->connector;
 	struct i2c_client *stdp4028_i2c
 			= ge_b850v3_lvds_ptr->stdp4028_i2c;
 	int ret;
@@ -219,25 +244,7 @@ static int ge_b850v3_lvds_attach(struct drm_bridge *bridge,
 		return -EINVAL;
 	}
 
-	if (!bridge->encoder) {
-		DRM_ERROR("Parent encoder object not found");
-		return -ENODEV;
-	}
-
-	connector->polled = DRM_CONNECTOR_POLL_HPD;
-
-	drm_connector_helper_add(connector,
-				 &ge_b850v3_lvds_connector_helper_funcs);
-
-	ret = drm_connector_init(bridge->dev, connector,
-				 &ge_b850v3_lvds_connector_funcs,
-				 DRM_MODE_CONNECTOR_DisplayPort);
-	if (ret) {
-		DRM_ERROR("Failed to initialize connector with drm\n");
-		return ret;
-	}
-
-	ret = drm_connector_attach_encoder(connector, bridge->encoder);
+	ret = ge_b850v3_lvds_create_connector(bridge);
 	if (ret)
 		return ret;