From: Pavel Machek <pavel@denx.de>
To: Pavel Machek <pavel@denx.de>
Cc: Tony Lindgren <tony@atomide.com>, Bin Liu <b-liu@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-omap@vger.kernel.org,
Jacopo Mondi <jacopo@jmondi.org>, Marcel Partap <mpartap@gmx.net>,
Merlijn Wajer <merlijn@wizzup.org>,
Michael Scott <hashcode0f@gmail.com>, NeKit <nekit1000@gmail.com>,
Sebastian Reichel <sre@kernel.org>
Subject: Re: [PATCH 0/4] musb host improvments mostly for omap2430 glue
Date: Mon, 2 Sep 2019 11:44:08 +0200 [thread overview]
Message-ID: <20190902094408.GB31410@amd> (raw)
In-Reply-To: <20190902092344.GA31410@amd>
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On Mon 2019-09-02 11:23:44, Pavel Machek wrote:
> Hi!
>
> > So I ended up cleaning up omap2430 glue layer a bit for host mode with the
> > various reproducable errors I was seeing docking droid4 to a lapdock. There
> > are a few fixes, and then we end up removing all the devctl register tinkering
> > for omap2430 glue layer.
>
> I should have your recent patches up-to [PATCH] power: supply:
> cpcap-charger: Enable vbus boost voltage applied to linux-next, -0830.
>
> So... to get usb host to work even with stock kernel, I need a hub and
> external power... and "right" cable between phone and hub.
>
> When I plugged/unplugged it several times, I got
>
> ### usb unplug:
> musb-hdrc.0.auto: musb_set_peripheral: already in peripheral mode: 80
> musb-hdrc.0.auto: musb_set_peripheral: already in peripheral mode: 80
> ub0: stop stats: rx/tx 0/0, errs 0/0
> l3_init_cm:clk:0040:0: failed to disable
> l3_init_cm:clk:00c0:0: failed to disable
> ### usb plug produces nothing
> ### usb unplug:
> musb-hdrc.0.auto: musb_set_peripheral: already in peripheral mode: 80
> musb-hdrc.0.auto: musb_set_peripheral: already in peripheral mode: 80
>
> Hmm. I did it two more times, and now machine rebooted, and USB was
> powered from the phone for a while (3.6V).
>
> And I reproduced the crash on the next boot.
>
> Is there anything I may be missing in .config?
Hmm. I guess CONFIG_USB_MUSB_DUAL_ROLE=y might be useful.
And now... if I unplug/replug the usb after the boot, USB hub and
mouse are recognized. Good!
Less than minute later:
mmusb-hdrc.0.auto: Babble
USB disconnect
I unplug, replug usb (not at the phone, between hub and dongle, and
green LED indincating charging starts blinking rapidly.
cpcap-core spi0.0: EOT timed out.
I try plug/replug, and now green led is on.
I unplug replug at the phone, and get bunch more of messages:
musm _set_peripheral: already in peripheral mode: 99
musm _set_peripheral: already in peripheral mode: 81
musm _set_peripheral: already in peripheral mode: 81
musb_set_host: could not set host: 99
musb_set_host: could not set host: 99
musb_set_host: could not set host: 99
musb_set_host: could not set host: 99
musb_set_host: could not set host: 99
musb_set_host: could not set host: 99
musb_set_host: could not set host: 99
musb_set_host: could not set host: 99
Unplug/replug at host, and again, hub+mouse is detected.
I unplug power connected to one of USB hub's ports... and find out
that phone was _not_ powering it.
Ok... so something somehow works.... sometimes :-).
Pavel
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2019-09-02 9:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-30 23:20 [PATCH 0/4] musb host improvments mostly for omap2430 glue Tony Lindgren
2019-08-30 23:20 ` [PATCH 1/4] usb: musb: omap2430: Wait on enable to avoid babble Tony Lindgren
2019-08-30 23:20 ` [PATCH 2/4] usb: musb: omap2430: Handle multiple ID ground interrupts Tony Lindgren
2019-08-30 23:20 ` [PATCH 3/4] usb: musb: Add musb_set_host and peripheral and use them for omap2430 Tony Lindgren
2019-08-30 23:20 ` [PATCH 4/4] usb: musb: omap2430: Clean up enable and remove devctl tinkering Tony Lindgren
2019-09-01 19:39 ` next-20190830 on Droid 4 was Re: [PATCH 0/4] musb host improvments mostly for omap2430 glue Pavel Machek
2019-09-01 19:49 ` Pavel Machek
2019-09-02 9:23 ` Pavel Machek
2019-09-02 9:44 ` Pavel Machek [this message]
2019-09-02 16:06 ` Tony Lindgren
2019-09-03 8:07 ` Pavel Machek
2019-09-16 1:20 ` Tony Lindgren
2019-09-16 1:26 ` Tony Lindgren
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