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Date: Thu, 9 Jun 2016 16:09:48 -0500
From: Bin Liu <b-liu@ti.com>
To: Felipe Balbi <felipe.balbi@linux.intel.com>
CC: Tony Lindgren <tony@atomide.com>,
        Pali =?iso-8859-1?Q?Roh=E1r?= <pali.rohar@gmail.com>,
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        Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>,
        Sebastian Reichel <sre@kernel.org>,
        Aaro Koskinen <aaro.koskinen@iki.fi>, Pavel Machek <pavel@ucw.cz>,
        Nishanth Menon <nm@ti.com>
Subject: Re: Nokia N900: musb is in wrong state after boot
Message-ID: <20160609210920.GD2167@uda0271908>
Mail-Followup-To: Bin Liu <b-liu@ti.com>,
	Felipe Balbi <felipe.balbi@linux.intel.com>,
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	linux-omap@vger.kernel.org,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>,
	Sebastian Reichel <sre@kernel.org>,
	Aaro Koskinen <aaro.koskinen@iki.fi>, Pavel Machek <pavel@ucw.cz>,
	Nishanth Menon <nm@ti.com>
References: <201601091616.04193@pali>
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 <20160121192113.GM19432@atomide.com>
 <201601231357.32629@pali>
 <20160529103824.GM29844@pali>
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 <20160608095321.GH22406@atomide.com>
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Hi,

On Wed, Jun 08, 2016 at 01:02:00PM +0300, Felipe Balbi wrote:
> 
> Hi,
> 
> Tony Lindgren <tony@atomide.com> writes:
> > * Pali Rohár <pali.rohar@gmail.com> [160607 05:53]:
> >> > Tony, what do you think about that patch?
> >> > 
> >> 
> >> Tony, PING
> >
> > Yeah I don't know, AFAIK we don't have a generic way to
> > force MUSB to change mode without ID pin. If you have figured
> > something generic for that which does not actually tinker with
> > the PHY registers directly, that should be the generic
> > musb_set_mode() that we've been wondering about for years.
> 
> #define MUSB_TEST_FORCE_HOST	0x80
> 
> Can someone confirm on MUSB's docs (and actual running system) that this
> does what's supposed to do?

I don't know what to expect while setting this bit. I am never able to get musb
to enumerate anything or does anything which a host suppose to do.

Regards,
-Bin.