linux-kernel - Re: [PATCH v3] usb/host/ehci-hub: Fix the issue EG20T USB host controller has long resuming time, when pen drive is attached.

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Message-ID: <Pine.LNX.4.44L0.1207131011130.1261-100000@iolanthe.rowland.org>
Date:	Fri, 13 Jul 2012 10:11:34 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Tomoya MORINAGA <tomoya.rohm@...il.com>
cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] usb/host/ehci-hub: Fix the issue EG20T USB host
 controller has long resuming time, when pen drive is attached.

On Fri, 13 Jul 2012, Tomoya MORINAGA wrote:

> Intel EG20T USB host controller does not send SOF in resuming time after
> suspending, if the FLR bit was not cleared. When pen drive is attached,
> the controller has a long resuming time to try re-connect it.
> This patch clear the FLR bit in suspending time for fixing the issue.
> 
> Signed-off-by: Tomoya MORINAGA <tomoya.rohm@...il.com>
> ---
> v3: Update comments from Alan Stern
> 	Add comment in the source code.
> 
> v2: Update comments from Alan Stern
>         Add patch description
>         Always clear the STS_FLR flag.

Acked-by: Alan Stern <stern@...land.harvard.edu>

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