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@xxxxxxxxxxxxxxxx>
Reviewed-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
Changes since v2:
- Declare ret variable
---
drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 26 ++++++++++++++++++-----
1 file changed, 21 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 ca3761772211..0daa8bba50f5 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
@@ -11,6 +11,7 @@
#include <linux/slab.h>
#include <drm/drm_bridge.h>
+#include <drm/drm_bridge_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_managed.h>
#include <drm/drm_modeset_helper_vtables.h>
@@ -53,7 +54,9 @@ 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_bridge *bridge;
+ int ret;
/*
* Locate the DRM bridge from the DT node. For the DPAD outputs, if the
@@ -103,9 +106,22 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu,
renc->output = output;
- /*
- * Attach the bridge to the encoder. The bridge will create the
- * connector.
- */
- return drm_bridge_attach(&renc->base, bridge, NULL, 0);
+ /* Attach the bridge to the encoder. */
+ ret = drm_bridge_attach(&renc->base, bridge, NULL,
+ DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+ if (ret) {
+ dev_err(rcdu->dev, "failed to attach bridge for output %u\n",
+ output);
+ return ret;
+ }
+
+ /* Create the connector for the chain of bridges. */
+ connector = drm_bridge_connector_init(&rcdu->ddev, &renc->base);
+ if (IS_ERR(connector)) {
+ dev_err(rcdu->dev,
+ "failed to created connector for output %u\n", output);
+ return PTR_ERR(connector);
+ }
+
+ return drm_connector_attach_encoder(connector, &renc->base);
}
--
Regards,
Laurent Pinchart
