USB: don't run ehci_reset in ehci_run for tdi device

TDI driver does the ehci_reset in their reset callback.
Don't reset in ehci_run because configuration settings done in
platform driver will be reset.

This will allow to make msm use ehci_run.

Signed-off-by: Matthieu CASTET <castet.matthieu@parrot.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 9 insertions, 3 deletions

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 74dcf49bd015..4c77a818fd80 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -679,7 +679,12 @@ static int ehci_run (struct usb_hcd *hcd)
         hcd->uses_new_polling = 1;
 
         /* EHCI spec section 4.1 */
-        if ((retval = ehci_reset(ehci)) != 0) {
+        /*
+         * TDI driver does the ehci_reset in their reset callback.
+         * Don't reset here, because configuration settings will
+         * vanish.
+         */
+        if (!ehci_is_TDI(ehci) && (retval = ehci_reset(ehci)) != 0) {
                 ehci_mem_cleanup(ehci);
                 return retval;
         }
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 0f87dc72820a..281e094e1c18 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -105,7 +105,8 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
         struct ehci_hcd *ehci = hcd_to_ehci(hcd);
         int retval;
 
-        ehci_reset(ehci);
+        hcd->has_tt = 1;
+
         retval = ehci_halt(ehci);
         if (retval)
                 return retval;
@@ -117,7 +118,7 @@ static int ehci_orion_setup(struct usb_hcd *hcd)
         if (retval)
                 return retval;
 
-        hcd->has_tt = 1;
+        ehci_reset(ehci);
 
         ehci_port_power(ehci, 0);