linux-kernel - Re: [RESEND] [PATCH] xhci: Switch Intel Lynx Point ports to EHCI on shutdown.

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Message-ID: <532C2C36.2030808@linux.intel.com>
Date:	Fri, 21 Mar 2014 14:10:30 +0200
From:	Mathias Nyman <mathias.nyman@...ux.intel.com>
To:	Denis Turischev <denis.turischev@...pulab.co.il>,
	Sarah Sharp <sarah.a.sharp@...ux.intel.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [RESEND] [PATCH] xhci: Switch Intel Lynx Point ports to EHCI
 on shutdown.

On 03/21/2014 12:01 PM, Denis Turischev wrote:
> The same issue like with Panther Point chipsets. If the USB ports are
> switched to xHCI on shutdown, the xHCI host will send a spurious interrupt,
> which will wake the system. Some BIOS have work around for this, but not all.
> One example is Compulab's mini-desktop, the Intense-PC2.
>
> The bug can be avoided if the USB ports are switched back to EHCI on
> shutdown.
>

I'll queue this up and send it forward to Greg once 3.15-rc1 is out

-Mathias


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