All devices should bind without error. But when they don't, they can cause
driver model init to fail. A real situation where this can happen is when
there is a missing uclass.

Add a debug() call to dm_scan_fdt_node to make this easier to track.

Signed-off-by: Simon Glass <s...@chromium.org>
---

Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/core/root.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/core/root.c b/drivers/core/root.c
index 78ab00c..bdb394a 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -162,8 +162,11 @@ int dm_scan_fdt_node(struct udevice *parent, const void 
*blob, int offset,
                        continue;
                }
                err = lists_bind_fdt(parent, blob, offset, NULL);
-               if (err && !ret)
+               if (err && !ret) {
                        ret = err;
+                       debug("%s: ret=%d\n", fdt_get_name(blob, offset, NULL),
+                             ret);
+               }
        }
 
        if (ret)
-- 
2.5.0.457.gab17608

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