This patch fixes the compiler warning of uninitialized variable.

drivers/usb/misc/usb3503.c: In function ‘usb3503_probe’:
drivers/usb/misc/usb3503.c:215:13: warning: ‘mode’ may be used uninitialized
in this function [-Wuninitialized]
Signed-off-by: NDongjin Kim <tobetter@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Added device tree support for usb3503 driver and add new document with device tree binding information.
Signed-off-by: NDongjin Kim <tobetter@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes the warning,

6a099c63 [4/10] USB: misc: Add USB3503 High-Speed Hub Controller

drivers/usb/misc/usb3503.c:238 usb3503_probe() error: we previously assumed 'pdata' could be null (see line 196)
Signed-off-by: NDongjin Kim <tobetter@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch adds new driver of SMSC USB3503 USB 2.0 hub controller with HSIC
upstream connectivity and three USB 2.0 downstream ports. The specification
can be found from 'http://www.smsc.com/index.php?tid=295&pid=325'.

The current version have been tested very basic features switching the modes,
HUB-MODE and STANDBY-MODE.
Signed-off-by: NDongjin Kim <tobetter@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>