linux-kernel - Re: [PATCH 1/3] ARM: OMAP4+: hwmod data: Don't prevent RESET of USB Host module

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Date:	Mon, 9 Dec 2013 02:15:44 +0000 (UTC)
From:	Paul Walmsley <paul@...an.com>
To:	Tony Lindgren <tony@...mide.com>
cc:	bcousson@...libre.com, Roger Quadros <rogerq@...com>,
	tomi.valkeinen@...com, balbi@...com, sr@...x.de,
	David.Laight@...LAB.COM, michael@...rulasolutions.com,
	bigeasy@...utronix.de, linux-omap@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] ARM: OMAP4+: hwmod data: Don't prevent RESET of USB
 Host module

On Sun, 8 Dec 2013, Tony Lindgren wrote:

> * Paul Walmsley <paul@...an.com> [131208 17:27]:
> > On Tue, 3 Dec 2013, Roger Quadros wrote:
> > 
> > > Without this, the USB devices are sometimes not detected on OMAP4 Panda
> > > with u-boot v2013.10.
> > > 
> > > Unlike what the comment states, errata i660 does not state that we
> > > can't RESET the USB host module. Instead it states that RESET is the
> > > only way to recover from a deadlock situation.
> > > 
> > > RESET ensures that the module is in a known good state irrespective
> > > of what bootloader does with the module, so it must be done at boot.
> > > 
> > > Reported-by: Tomi Valkeinen <tomi.valkeinen@...com>
> > > Signed-off-by: Roger Quadros <rogerq@...com>
> > 
> > Acked-by: Paul Walmsley <paul@...an.com>
> > 
> > Will you pick this up for the -rc series, or do you want me or Tony to?  
> > Roger writes that this one's pretty important.
> 
> I suggest that you just queue this with your other fixes so we get
> things working.

I'm going to wait until tomorrow anyway to see if Sathya responds to my 
other E-mail, so maybe Benoît will let us know by then.


- Paul