linux-kernel - Re: [PATCH] USB: ohci-at91: fix PIO handling in relation with number of ports

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Date:	Tue, 4 Sep 2012 10:34:44 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
cc:	gregkh@...uxfoundation.org, <linux-usb@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <plagnioj@...osoft.com>,
	<klaus.falkner@...ectrix.de>, <ludovic.desroches@...el.com>
Subject: Re: [PATCH] USB: ohci-at91: fix PIO handling in relation with number
 of ports

On Tue, 4 Sep 2012, Nicolas Ferre wrote:

> On 08/29/2012 11:49 AM, Nicolas Ferre :
> > If the number of ports present on the SoC/board is not the maximum
> > and that the platform data is not filled with all data, there is
> > an easy way to mess the PIO setup for this interface.
> > This quick fix addresses mis-configuration in USB host platform data
> > that is common in at91 boards since commit 0ee6d1e (USB: ohci-at91:
> > change maximum number of ports) that did not modified the associatd
> > board files.
> > 
> > Reported-by: Klaus Falkner <klaus.falkner@...ectrix.de>
> > Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
> > Cc: Alan Stern <stern@...land.harvard.edu>
> > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Cc: linux-usb@...r.kernel.org
> > Cc: Stable <stable@...r.kernel.org> [3.4+]
> 
> Alan, Greg, gentle ping...
> 
> I really would like to seen it landing in stable soon...
> 
> Thanks, best regards,

Sorry for the delay.  I feel a little uncomfortable judging board-level 
changes like this, since I know nothing about the hardware details.

Still, for what it's worth, this patch is okay as far as the core 
ohci-hcd driver components are concerned.  So...

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

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