From: Roger Quadros <rogerq@ti.com>
Date: Fri, 29 May 2015 14:01:50 +0000 (+0300)
Subject: usb: xhci: Fix suspend/resume when used with OTG core
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~119^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9fa733f24bb54dd532b5f5d7abc275c4a547c69f;p=pandora-kernel.git

usb: xhci: Fix suspend/resume when used with OTG core

In the OTG case, the controller might not yet have been
added or is removed before the system suspends.

Assign xhci->main_hcd during probe to prevent NULL
pointer de-reference in xhci_suspend/resume().

Use the hcd->state flag to check if HCD is halted
and if that is so do nothing for xhci_suspend/resume().

[Only for xhci-plat devices, pci devices need it in gen_setup -Mathias]
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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