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From: Felipe Balbi <balbi@ti.com>
To: Bin Liu <binmlist@gmail.com>
Cc: <balbi@ti.com>, George Cherian <george.cherian@ti.com>,
	<gregkh@linuxfoundation.org>, <linux-usb@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <bigeasy@linutronix.de>
Subject: Re: [PATCH] usb: musb: core: Disable the Interrupts till BABBLE is fully handled
Date: Tue, 18 Nov 2014 21:12:11 -0600	[thread overview]
Message-ID: <20141119031211.GC24874@saruman> (raw)
In-Reply-To: <CADYTM3b9zSpP2yO2Lp5WOxBxB0yX=bG_20mFKQNGnyXV0XLOHg@mail.gmail.com>

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On Tue, Nov 18, 2014 at 06:44:39PM -0600, Bin Liu wrote:
> Felipe,
> 
> On Tue, Nov 18, 2014 at 3:17 PM, Felipe Balbi <balbi@ti.com> wrote:
> > On Fri, Nov 14, 2014 at 01:54:46PM +0530, George Cherian wrote:
> >> Disable the MUSB interrupts till MUSB is recovered fully from BABBLE
> >> condition. There are chances that we could get multiple interrupts
> >> till the time the babble recover work gets scheduled. Sometimes
> >> this could even end up in an endless loop making MUSB itself unusable.
> >>
> >> Reported-by: Felipe Balbi <balbi@ti.com>
> >> Signed-off-by: George Cherian <george.cherian@ti.com>
> >
> > while this helps the situation it doesn't solve the problem I'm having
> > with testusb on BBB when host port is connected to peripheral port on
> > the same BBB.
> 
> Try to find a BB white (which has rev 1.0 SoC) to see if babble still
> happens, this could be PHY hw issue.

it only happens with my BBB when peripheral port is connected straight
to host port. If I use another board as g_zero, then tests work just
fine.

If someone else can confirm this is the case with their board, I'd be
happy.

-- 
balbi

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  reply	other threads:[~2014-11-19  3:12 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-14  8:24 [PATCH] usb: musb: core: Disable the Interrupts till BABBLE is fully handled George Cherian
2014-11-14  8:42 ` Sebastian Andrzej Siewior
2014-11-14  9:11   ` George Cherian
2014-11-14 21:02     ` Felipe Balbi
2014-11-18 21:17 ` Felipe Balbi
2014-11-19  0:44   ` Bin Liu
2014-11-19  3:12     ` Felipe Balbi [this message]
2014-11-24 17:47   ` Sebastian Andrzej Siewior
2014-11-24 17:49   ` Sebastian Andrzej Siewior
2014-11-24 18:20     ` Felipe Balbi
2014-11-24 20:39       ` Peter Stuge
2014-11-24 20:56         ` Sebastian Andrzej Siewior
2014-11-25  1:09           ` Felipe Balbi
2014-11-25  8:24             ` Sebastian Andrzej Siewior
2014-11-25 14:49               ` Felipe Balbi

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