[PATCH 2/3] of: property: add debug info for supplier devices still unavailable

[Dong Aisheng]

It's normal that supplier devices may still unavaiable when parse DT to
create dependency. e.g. supplier devices populated by drivers.
Add debug info for this case.

Cc: devicetree@xxxxxxxxxxxxxxx
Cc: Saravana Kannan <saravanak@xxxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
---
 drivers/of/property.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 408a7b5f06a9..21a854e85234 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1150,6 +1150,8 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np,
 			 * Can't check for cycles or no cycles. So let's try
 			 * again later.
 			 */
+			dev_dbg(dev, "Not linking to %pOFP - device may still unavailable\n",
+				sup_np);
 			ret = -EAGAIN;
 		}
 
-- 
2.23.0