1 files changed, 47 insertions, 0 deletions
diff --git a/queue-5.10/drm-bridge-cdns-dsi-fix-connecting-to-next-bridge.patch b/queue-5.10/drm-bridge-cdns-dsi-fix-connecting-to-next-bridge.patch
new file mode 100644
index 0000000000..63f4e4fc97
--- /dev/null
+++ b/queue-5.10/drm-bridge-cdns-dsi-fix-connecting-to-next-bridge.patch
@@ -0,0 +1,47 @@
+From 688eb4d465484bc2a3471a6a6f06f833b58c7867 Mon Sep 17 00:00:00 2001
+From: Aradhya Bhatia <a-bhatia1@ti.com>
+Date: Sat, 29 Mar 2025 17:09:12 +0530
+Subject: drm/bridge: cdns-dsi: Fix connecting to next bridge
+
+From: Aradhya Bhatia <a-bhatia1@ti.com>
+
+commit 688eb4d465484bc2a3471a6a6f06f833b58c7867 upstream.
+
+Fix the OF node pointer passed to the of_drm_find_bridge() call to find
+the next bridge in the display chain.
+
+The code to find the next panel (and create its panel-bridge) works
+fine, but to find the next (non-panel) bridge does not.
+
+To find the next bridge in the pipeline, we need to pass "np" - the OF
+node pointer of the next entity in the devicetree chain. Passing
+"of_node" to of_drm_find_bridge (which is what the code does currently)
+will fetch the bridge for the cdns-dsi which is not what's required.
+
+Fix that.
+
+Fixes: e19233955d9e ("drm/bridge: Add Cadence DSI driver")
+Cc: stable@vger.kernel.org
+Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
+Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
+Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
+Signed-off-by: Aradhya Bhatia <aradhya.bhatia@linux.dev>
+Link: https://lore.kernel.org/r/20250329113925.68204-2-aradhya.bhatia@linux.dev
+Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/gpu/drm/bridge/cdns-dsi.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/bridge/cdns-dsi.c
++++ b/drivers/gpu/drm/bridge/cdns-dsi.c
+@@ -961,7 +961,7 @@ static int cdns_dsi_attach(struct mipi_d
+ 		bridge = drm_panel_bridge_add_typed(panel,
+ 						    DRM_MODE_CONNECTOR_DSI);
+ 	} else {
+-		bridge = of_drm_find_bridge(dev->dev.of_node);
++		bridge = of_drm_find_bridge(np);
+ 		if (!bridge)
+ 			bridge = ERR_PTR(-EINVAL);
+ 	}