1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 6692832c9c81..81a177a5f032 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -280,6 +280,14 @@ int pciehp_check_link_status(struct controller *ctrl)
         else
                 msleep(1000);
 
+        /*
+         * Need to wait for 1000 ms after Data Link Layer Link Active
+         * (DLLLA) bit reads 1b before sending configuration request.
+         * We need it before checking Link Training (LT) bit becuase
+         * LT is still set even after DLLLA bit is set on some platform.
+         */
+        msleep(1000);
+
         retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
         if (retval) {
                 ctrl_err(ctrl, "Cannot read LNKSTATUS register\n");