@@ -430,9 +430,21 @@ static int pnv_php_enable(struct pnv_php_slot *php_slot, bool rescan)
if (ret)
return ret;
- /* Proceed if there have nothing behind the slot */
- if (presence == OPAL_PCI_SLOT_EMPTY)
+ /*
+ * Proceed if there have nothing behind the slot. However,
+ * we should leave the slot in registered state at the
+ * beginning. Otherwise, the PCI devices inserted afterwards
+ * won't be probed and populated.
+ */
+ if (presence == OPAL_PCI_SLOT_EMPTY) {
+ if (!php_slot->power_state_check) {
+ php_slot->power_state_check = true;
+
+ return 0;
+ }
+
goto scan;
+ }
/*
* If the power supply to the slot is off, we can't detect