of: property: Don't add links to absent suppliers

If driver core marks a firmware node as not a device, don't add fwnode
links where it's a supplier.

Fixes: e590474768f1 ("driver core: Set fw_devlink=on by default")
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210205222644.2357303-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 8b52160..94f3f6c 100644 (file)
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1103,7 +1103,9 @@ static int of_link_to_phandle(struct device_node *con_np,
         * created for them.
         */
        sup_dev = get_dev_from_fwnode(&sup_np->fwnode);
-       if (!sup_dev && of_node_check_flag(sup_np, OF_POPULATED)) {
+       if (!sup_dev &&
+           (of_node_check_flag(sup_np, OF_POPULATED) ||
+            sup_np->fwnode.flags & FWNODE_FLAG_NOT_DEVICE)) {
                pr_debug("Not linking %pOFP to %pOFP - No struct device\n",
                         con_np, sup_np);
                of_node_put(sup_np);