usb: chipidea: fix nobody cared IRQ when booting with host role
authorPeter Chen <peter.chen@freescale.com>
Thu, 5 Dec 2013 07:20:50 +0000 (15:20 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 Dec 2013 21:14:12 +0000 (13:14 -0800)
commit5a1e1456fc633da5291285b1fff75d2a7507375b
tree7d1c4a17d4fcc05f50efebaf7d3f0934c34b0dd5
parentcc5c9eb67f912cb2c349b04063ff9f444affbc59
usb: chipidea: fix nobody cared IRQ when booting with host role

If we connect Male-A-To-Male-A cable between otg-host and host pc,
the ci->vbus_active is set wrongly, and cause the controller run
at peripheral mode when we load gadget module (ci_udc_start will be run),
but the software runs at host mode due to id = 0. The ehci_irq
can't handle suspend (USBi_SLI) interrupt which is enabled for
peripheral mode, it causes no one will handle irq error.

This patch is needed for 3.12 stable

Cc: stable <stable@vger.kernel.org>
Acked-by: Michael Grzeschik <mgr@pengutronix.de>
Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/chipidea/core.c
drivers/usb/chipidea/udc.c