USB: gpio_vbus: provide an appropriate debounce interval

commit 934ccec4da14dc0586dfe08b36166364bdd2181b upstream.

In commit c2344f13b59e007d782a3e591ebc551bc583a8b7 (USB: gpio_vbus:
add delayed vbus_session calls, 2009-01-24), usb_gadget_vbus_connect()
and ...disconnect() were extracted from the interrupt handler, so to
allow vbus_session handlers to deal with msleep() calls.

This patch takes the approach one step further.

USB2.0 specification (7.1.7.3 Connect and Disconnect Signaling) says
that the USB system software (shall) provide a debounce interval with
a minimum duration of 100 ms, which ensures that the electrical and
mechanical connection is stable before software attempts to reset
the attached device.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USB: ohci-at91: add a reset function to fix race condition

commit 07e4e556eff4938eb2edf2591de3aa7d7fb82b52 upstream.

A possible race condition appears because we are not initializing
the ohci->regs before calling usb_hcd_request_irqs().
We move the call to ohci_init() in hcd->driver->reset() instead of
hcd->driver->start() to fix this.
This was experienced when we share the same IRQ line between OHCI and EHCI
controllers.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: Christian Eggers <christian.eggers@kathrein.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USB: Remove races in devio.c

commit 4e09dcf20f7b5358615514c2ec8584b248ab8874 upstream.

There exist races in devio.c, below is one case,
and there are similar races in destroy_async()
and proc_unlinkurb().  Remove these races.

 cancel_bulk_urbs()        async_completed()
-------------------                -----------------------
 spin_unlock(&ps->lock);

                           list_move_tail(&as->asynclist,
		                    &ps->async_completed);

                           wake_up(&ps->wait);

                           Lead to free_async() be triggered,
                           then urb and 'as' will be freed.

 usb_unlink_urb(as->urb);
 ===> refer to the freed 'as'

Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Oncaphillis <oncaphillis@snafu.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
USB: serial: ti_usb_3410_5052: Add support for the FRI2 serial console

commit 975dc33b82cb887d75a29b1e3835c8eb063a8e99 upstream.

The Kontron M2M development board, also known as the Fish River Island II,
has an optional daughter card providing access to the PCH_UART (EG20T) via
a ti_usb_3410_5052 uart to usb chip.

http://us.kontron.com/products/systems+and+platforms/m2m/m2m+smart+services+developer+kit.html

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
CC: Al Borchers <alborchers@steinerpoint.com>
CC: Peter Berger <pberger@brimson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: gadget: fsl_udc_core: dTD's next dtd pointer need to be updated once written

commit 4d0947dec4db1224354e2f6f00ae22ce38e62a43 upstream.

dTD's next dtd pointer need to be updated once CPU writes it, or this
request may not be handled by controller, then host will get NAK from
device forever.

This problem occurs when there is a request is handling, we need to add
a new request to dTD list, if this new request is added before the current
one is finished, the new request is intended to added as next dtd pointer
at current dTD, but without wmb(), the dTD's next dtd pointer may not be
updated when the controller reads it. In that case, the controller will
still get Terminate Bit is 1 at dTD's next dtd pointer, that means there is
no next request, then this new request is missed by controller.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: add USB_QUIRK_RESET_RESUME for M-Audio 88es

commit 166cb70e97bd83d7ae9bbec6ae59a178fd9bb823 upstream.

Tested-by: Steffen Müller <steffen.mueller@radio-frei.de>
Signed-off-by: Steffen Müller <steffen.mueller@radio-frei.de>
Signed-off-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>