ARM: tegra: usb no reset

Patch for disconnect issues with storage attached to a
 tegra-ehci controller

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 73dfa194160b78fba6bec233b667b00bceac6cb1..29c23e5eb8678fc0bff570444d4aac4875cf05d9 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4996,6 +4996,13 @@ static void hub_event(struct work_struct *work)
                        (u16) hub->change_bits[0],
                        (u16) hub->event_bits[0]);
 
+       /* Don't disconnect USB-SATA on TrimSlice */
+       if (strcmp(dev_name(hdev->bus->controller), "tegra-ehci.0") == 0) {
+               if ((hdev->state == 7) && (hub->change_bits[0] == 0) &&
+                               (hub->event_bits[0] == 0x2))
+                       hub->event_bits[0] = 0;
+       }
+
        /* Lock the device, then check to see if we were
         * disconnected while waiting for the lock to succeed. */
        usb_lock_device(hdev);