dbc4a9b
From: Peter Robinson <pbrobinson@gmail.com>
dbc4a9b
Date: Thu, 3 May 2012 20:27:11 +0100
dbc4a9b
Subject: [PATCH] ARM: tegra: usb no reset
dbc4a9b
dbc4a9b
Patch for disconnect issues with storage attached to a
dbc4a9b
 tegra-ehci controller
dbc4a9b
---
dbc4a9b
 drivers/usb/core/hub.c | 7 +++++++
dbc4a9b
 1 file changed, 7 insertions(+)
dbc4a9b
dbc4a9b
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
57e2b74
index dc849154f9de..88647f158ed2 100644
dbc4a9b
--- a/drivers/usb/core/hub.c
dbc4a9b
+++ b/drivers/usb/core/hub.c
57e2b74
@@ -5038,6 +5038,13 @@ static void hub_events(void)
dbc4a9b
 				(u16) hub->change_bits[0],
dbc4a9b
 				(u16) hub->event_bits[0]);
dbc4a9b
 
dbc4a9b
+		/* Don't disconnect USB-SATA on TrimSlice */
dbc4a9b
+		if (strcmp(dev_name(hdev->bus->controller), "tegra-ehci.0") == 0) {
dbc4a9b
+			if ((hdev->state == 7) && (hub->change_bits[0] == 0) &&
dbc4a9b
+			    (hub->event_bits[0] == 0x2))
dbc4a9b
+				hub->event_bits[0] = 0;
dbc4a9b
+		}
dbc4a9b
+
dbc4a9b
 		/* Lock the device, then check to see if we were
dbc4a9b
 		 * disconnected while waiting for the lock to succeed. */
dbc4a9b
 		usb_lock_device(hdev);
dbc4a9b
-- 
dbc4a9b
1.9.3
dbc4a9b