1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 4f89d7ffd53..9835e071394 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -240,6 +240,11 @@ static int ehci_reset (struct ehci_hcd *ehci)
         int     retval;
         u32     command = ehci_readl(ehci, &ehci->regs->command);
 
+        /* If the EHCI debug controller is active, special care must be
+         * taken before and after a host controller reset */
+        if (ehci->debug && !dbgp_reset_prep())
+                ehci->debug = NULL;
+
         command |= CMD_RESET;
         dbg_cmd (ehci, "reset", command);
         ehci_writel(ehci, command, &ehci->regs->command);
@@ -260,6 +265,9 @@ static int ehci_reset (struct ehci_hcd *ehci)
         if (ehci_is_TDI(ehci))
                 tdi_reset (ehci);
 
+        if (ehci->debug)
+                dbgp_external_startup();
+
         return retval;
 }