From 0fdf523a691fb1a357ff535ab4bec5c90d6fb8fc Mon Sep 17 00:00:00 2001 From: Peter Robinson Date: Thu, 3 May 2012 20:27:11 +0100 Subject: [PATCH] ARM: tegra: usb no reset Patch for disconnect issues with storage attached to a tegra-ehci controller --- drivers/usb/core/hub.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 8a4dcbc7a75f..8ab01fbcc6a9 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -5031,6 +5031,13 @@ static void hub_events(void) (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); -- 1.9.3