From: Lan Tianyu <tianyu.lan@intel.com>
Date: Wed, 5 Sep 2012 05:44:31 +0000 (+0800)
Subject: usb: make usb port a real device
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~73^2~151
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fa2a9566257a3b62c328ea5d621ccf5952079dac;p=pandora-kernel.git

usb: make usb port a real device

This patch turns each USB port on a hub into a new struct device.  This
new device has the USB hub interface device as its parent.  The port
devices are stored in a new structure (usb_port), and an array of
usb_ports are dynamically allocated once we know how many ports the USB
hub has.

Move the port_owner variable out of usb_hub and into this new structure.

A new file will be created in the hub interface sysfs directory, so
add documentation.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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