From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: "Pali Rohár" <pali.rohar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>,
Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ivaylo Dimitrov
<ivo.g.dimitrov.75-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Aaro Koskinen <aaro.koskinen-X3B1VOXEql0@public.gmane.org>,
Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>,
Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
Subject: Re: Nokia N900: musb is in wrong state after boot
Date: Tue, 19 Jan 2016 12:33:15 -0800 [thread overview]
Message-ID: <20160119203314.GE19432@atomide.com> (raw)
In-Reply-To: <201601091616.04193@pali>
Hi,
* Pali Rohár <pali.rohar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> [160109 07:16]:
> Hello,
>
> when I boot 4.4.0-rc7+ kernel compiled with g_nokia into zImage on Nokia
> N900 into userspace then usb gadget (g_nokia) does not work. Notebook,
> connected on other side does not see any usb device... Connecting and
> disconnecting cable does not change anything, still not work.
>
> But if I run this command
> $ echo peripheral > /sys/bus/platform/devices/musb-hdrc.0.auto/mode
\0
>
> then gadget starts working. Other side see usb device and can use it.
> Also connecting and disconnecting usb cable working fine. After
> connecting it again, usb device OK.
N900 had the PHY interrupt wired to the bq chip instead of twl4030, right?
You can fix this issue similar to phy-twl4030-usb.c. In function
twl4030_phy_power_on() we call schedule_delayed_work() that checks
the state of the ID pin on boot up.
I think that's only needed for the i2c based PHY's with MUSB, with
the others the USB driver has a better idea of the current state.
Regards,
Tony
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WARNING: multiple messages have this Message-ID (diff)
From: Tony Lindgren <tony@atomide.com>
To: "Pali Rohár" <pali.rohar@gmail.com>
Cc: Felipe Balbi <balbi@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
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>
Subject: Re: Nokia N900: musb is in wrong state after boot
Date: Tue, 19 Jan 2016 12:33:15 -0800 [thread overview]
Message-ID: <20160119203314.GE19432@atomide.com> (raw)
In-Reply-To: <201601091616.04193@pali>
Hi,
* Pali Rohár <pali.rohar@gmail.com> [160109 07:16]:
> Hello,
>
> when I boot 4.4.0-rc7+ kernel compiled with g_nokia into zImage on Nokia
> N900 into userspace then usb gadget (g_nokia) does not work. Notebook,
> connected on other side does not see any usb device... Connecting and
> disconnecting cable does not change anything, still not work.
>
> But if I run this command
> $ echo peripheral > /sys/bus/platform/devices/musb-hdrc.0.auto/mode
>
> then gadget starts working. Other side see usb device and can use it.
> Also connecting and disconnecting usb cable working fine. After
> connecting it again, usb device OK.
N900 had the PHY interrupt wired to the bq chip instead of twl4030, right?
You can fix this issue similar to phy-twl4030-usb.c. In function
twl4030_phy_power_on() we call schedule_delayed_work() that checks
the state of the ID pin on boot up.
I think that's only needed for the i2c based PHY's with MUSB, with
the others the USB driver has a better idea of the current state.
Regards,
Tony
next prev parent reply other threads:[~2016-01-19 20:33 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-09 15:16 Nokia N900: musb is in wrong state after boot Pali Rohár
2016-01-09 15:16 ` Pali Rohár
2016-01-19 20:33 ` Tony Lindgren [this message]
2016-01-19 20:33 ` Tony Lindgren
2016-01-21 8:40 ` Pali Rohár
2016-01-21 9:57 ` Ivaylo Dimitrov
2016-01-21 10:23 ` Pali Rohár
2016-01-21 10:27 ` Ivaylo Dimitrov
2016-01-21 10:29 ` joerg Reisenweber
2016-01-21 17:41 ` Tony Lindgren
2016-01-21 18:44 ` joerg Reisenweber
2016-01-21 19:21 ` Tony Lindgren
2016-01-21 19:34 ` joerg Reisenweber
2016-01-21 20:30 ` Tony Lindgren
2016-01-26 14:34 ` Pali Rohár
2016-01-26 17:26 ` Tony Lindgren
2016-02-21 11:12 ` Pali Rohár
2016-02-22 7:31 ` Felipe Balbi
2016-02-22 8:34 ` Pali Rohár
2016-02-22 8:54 ` Felipe Balbi
2016-02-22 8:54 ` Felipe Balbi
2016-02-22 15:36 ` Bin Liu
2016-02-22 15:36 ` Bin Liu
2016-02-22 15:49 ` Adam Ford
2016-02-22 15:49 ` Adam Ford
2016-01-23 12:57 ` Pali Rohár
2016-05-29 10:38 ` Pali Rohár
2016-05-29 10:38 ` Pali Rohár
2016-06-07 12:50 ` Pali Rohár
2016-06-08 9:53 ` Tony Lindgren
2016-06-08 10:02 ` Felipe Balbi
2016-06-08 10:19 ` Pali Rohár
[not found] ` <87h9d49exz.fsf-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2016-06-08 10:20 ` joerg Reisenweber
2016-06-08 10:20 ` joerg Reisenweber
2016-06-08 12:04 ` Sergei Shtylyov
2016-06-08 12:04 ` Sergei Shtylyov
[not found] ` <71cb45ec-a269-d510-df34-eb6eaa781da8-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2016-06-08 12:18 ` joerg Reisenweber
2016-06-08 12:18 ` joerg Reisenweber
2016-06-08 12:32 ` Sergei Shtylyov
2016-06-08 12:32 ` Sergei Shtylyov
2016-06-09 21:09 ` Bin Liu
2016-06-09 20:58 ` Bin Liu
2016-06-09 20:58 ` Bin Liu
2016-06-09 21:25 ` joerg Reisenweber
2016-06-09 21:25 ` joerg Reisenweber
2016-06-10 15:08 ` Bin Liu
2016-06-10 15:23 ` joerg Reisenweber
2016-06-10 15:59 ` Bin Liu
2016-06-10 16:15 ` joerg Reisenweber
2016-06-10 17:04 ` Nishanth Menon
[not found] ` <575AF32B.2090705-l0cyMroinI0@public.gmane.org>
2016-06-10 17:21 ` joerg Reisenweber
2016-06-10 17:21 ` joerg Reisenweber
2016-06-10 17:37 ` Bin Liu
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