Revert "net: mdio: Delete usage of driver_deferred_probe_check_state()"

This reverts commit f821727.

There are a few more issues to fix that have been reported in the thread
for the original series [1]. We'll need to fix those before this will work.
So, revert it for now.

[1] - https://lore.kernel.org/lkml/CAMuHMdWo_wRwV-i_iyTxVnEsf3Th9GBAG+wxUQMQGnw1t2ijTg@mail.gmail.com/

Fixes: f821727 ("net: mdio: Delete usage of driver_deferred_probe_check_state()")
Reported-by: Geert Uytterhoeven <[email protected]>
Tested-by: Alexander Stein <[email protected]>
Reviewed-by: Tony Lindgren <[email protected]>
Signed-off-by: Saravana Kannan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Saravana Kannan

drivers/net/mdio/fwnode_mdio.c

@@ -47,7 +47,9 @@ int fwnode_mdiobus_phy_device_register(struct mii_bus *mdio,
 	 * just fall back to poll mode
 	 */
 	if (rc == -EPROBE_DEFER)
-		rc = -ENODEV;
+		rc = driver_deferred_probe_check_state(&phy->mdio.dev);
+	if (rc == -EPROBE_DEFER)
+		return rc;
 
 	if (rc > 0) {
 		phy->irq = rc;