1 files changed, 9 insertions, 15 deletions

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index f69a125f9559..a6893cc45fe4 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1586,6 +1586,10 @@ static int dsi_host_attach(struct mipi_dsi_host *host,
 	if (ret)
 		return ret;
 
+	ret = dsi_dev_attach(msm_host->pdev);
+	if (ret)
+		return ret;
+
 	DBG("id=%d", msm_host->id);
 	if (msm_host->dev)
 		queue_work(msm_host->workqueue, &msm_host->hpd_work);
@@ -1598,6 +1602,8 @@ static int dsi_host_detach(struct mipi_dsi_host *host,
 {
 	struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
 
+	dsi_dev_detach(msm_host->pdev);
+
 	msm_host->device_node = NULL;
 
 	DBG("id=%d", msm_host->id);
@@ -1658,6 +1664,8 @@ static int dsi_host_parse_lane_data(struct msm_dsi_host *msm_host,
 	if (!prop) {
 		DRM_DEV_DEBUG(dev,
 			"failed to find data lane mapping, using default\n");
+		/* Set the number of date lanes to 4 by default. */
+		msm_host->num_data_lanes = 4;
 		return 0;
 	}
 
@@ -1931,7 +1939,7 @@ int msm_dsi_host_modeset_init(struct mipi_dsi_host *host,
 	return 0;
 }
 
-int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer)
+int msm_dsi_host_register(struct mipi_dsi_host *host)
 {
 	struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
 	int ret;
@@ -1945,20 +1953,6 @@ int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer)
 			return ret;
 
 		msm_host->registered = true;
-
-		/* If the panel driver has not been probed after host register,
-		 * we should defer the host's probe.
-		 * It makes sure panel is connected when fbcon detects
-		 * connector status and gets the proper display mode to
-		 * create framebuffer.
-		 * Don't try to defer if there is nothing connected to the dsi
-		 * output
-		 */
-		if (check_defer && msm_host->device_node) {
-			if (IS_ERR(of_drm_find_panel(msm_host->device_node)))
-				if (!of_drm_find_bridge(msm_host->device_node))
-					return -EPROBE_DEFER;
-		}
 	}
 
 	return 0;