tree 031e8c73808e5b50e87b5e180c426703a3c8038c
parent facf47ee6b4d07d43c3bfd6f0762f1b28f64703a
author Li Jun <jun.li@freescale.com> 1444731811 +0800
committer Peter Chen <peter.chen@freescale.com> 1447826874 +0800

usb: chipidea: debug: disable usb irq while role switch

Since the ci->role will be set after the host role start is complete, there
will be nobody cared irq during start host if usb irq enabled. This error
can be reproduced on i.mx6 sololite EVK board by:
1. disable otg id irq(IDIE) and disable all real otg properties of usbotg1
   in dts.
2. boot up the board with ID cable and usb device connected.
3. echo gadget > /sys/kernel/debug/ci_hdrc.0/role
4. echo host > /sys/kernel/debug/ci_hdrc.0/role
5. irq 212: nobody cared.

Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>