From: Felipe Balbi <balbi@ti.com>
To: Paul Bolle <pebolle@tiscali.nl>
Cc: <balbi@ti.com>, Pawel Moll <pawel.moll@arm.com>,
Sneeker Yeh <sneeker.yeh@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mathias Nyman <mathias.nyman@intel.com>,
Grant Likely <grant.likely@linaro.org>,
Alan Stern <stern@rowland.harvard.edu>,
Arnd Bergmann <arnd@arndb.de>,
Hans de Goede <hdegoede@redhat.com>,
Thomas Pugliese <thomas.pugliese@gmail.com>,
David Mosberger <davidm@egauge.net>,
Peter Griffin <peter.griffin@linaro.org>,
Sylwester Nawrocki <s.nawrocki@samsung.com>,
Andrew Bresticker <abrestic@chromium.org>,
Gregory CLEMENT <gregory.clement@free-electrons.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-usb@vger.kernel.org>, <linux-omap@vger.kernel.org>,
Andy Green <andy.green@linaro.org>,
Jassi Brar <jaswinder.singh@linaro.org>,
Sneeker Yeh <Sneeker.Yeh@tw.fujitsu.com>,
Paul Zimmerman <paul.zimmerman@synopsys.com>
Subject: Re: [PATCH 3/3] usb: dwc3: add a quirk for device disconnection issue in Synopsis dwc3 core
Date: Mon, 12 Jan 2015 11:50:47 -0600 [thread overview]
Message-ID: <20150112175047.GE6525@saruman> (raw)
In-Reply-To: <1421083783.22660.69.camel@x220>
[-- Attachment #1: Type: text/plain, Size: 1117 bytes --]
On Mon, Jan 12, 2015 at 06:29:43PM +0100, Paul Bolle wrote:
> On Mon, 2015-01-12 at 11:20 -0600, Felipe Balbi wrote:
> > On Sun, Jan 11, 2015 at 11:19:55PM +0800, Sneeker Yeh wrote:
> > > in case i express unclearly i also put a pdf:
> > > https://drive.google.com/file/d/0B18MmcvvKjNNbDF6eEdHSzZCazA/view
> > >
> > > This issue is defined by a two-way race at disconnect, between
> > > 1) class driver interrupt endpoint resheduling attempts if the ISR gave an
> > > ep error event due to device detach (it would try 3 times)
> > > 2) Disconnect interrupt on PORTSC_CSC, which is cleared by hub thread
> > > asynchronously
> > > 3) The hardware IP was configured in silicon with
> > > - DWC_USB3_SUSPEND_ON_DISCONNECT_EN=1 (this is an IP configuration
> >
> > yeah, aparently this is another configuration which is not exposed on
> > HWPARAMS registers. Paul, can you confirm for us ? I couldn't find it on
> > Databook on any of the HWPARAMS registers.
>
> I guess you meant to ask Pawel, because I know nothing at all about all
> that!
No, it was Paul Zimmerman :-)
--
balbi
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next prev parent reply other threads:[~2015-01-12 17:52 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-16 2:10 [PATCH 0/3] Add support for Fujitsu USB host controller Sneeker Yeh
2014-12-16 2:10 ` [PATCH 1/3] usb: host: f_usb20ho: add support for Fujitsu ehci/ohci USB 2.0 " Sneeker Yeh
2014-12-16 9:06 ` Arnd Bergmann
[not found] ` <830AC58E49A426478AC39824BC0FA915D8BB402BB7@fmpitwmsex01.fmpi.sea.css.fujitsu.com>
2014-12-17 15:44 ` Arnd Bergmann
2014-12-16 2:10 ` [PATCH 2/3] usb: dwc3: add Fujitsu Specific Glue layer Sneeker Yeh
2014-12-22 15:59 ` Felipe Balbi
[not found] ` <CAJ1gpc0uniw3F3O9nxTLHp9M2boxrOACYDB=fgruhLOLdqg9yA@mail.gmail.com>
2014-12-29 16:14 ` Felipe Balbi
[not found] ` <CAJ1gpc1yRmuxQVttC5NnKF8PKLeH5PPDkuXU-fwGNcQKRj50Ww@mail.gmail.com>
2015-01-05 15:52 ` Felipe Balbi
2014-12-30 10:12 ` Arnd Bergmann
2015-01-03 1:21 ` Felipe Balbi
2015-01-05 15:28 ` Arnd Bergmann
2015-01-05 15:50 ` Felipe Balbi
2014-12-16 2:10 ` [PATCH 3/3] usb: dwc3: add a quirk for device disconnection issue in Synopsis dwc3 core Sneeker Yeh
2014-12-22 15:37 ` Felipe Balbi
[not found] ` <CAJ1gpc3jVpz=5ME4+wCJDW5NKihvB4xYzwi0co=UuPtG9Ubmjg@mail.gmail.com>
[not found] ` <CAJ1gpc3-Wjtm54WOhO6RXjZft9BMngzyYC0-S-XnTacV-qKgMg@mail.gmail.com>
2014-12-29 16:06 ` Felipe Balbi
[not found] ` <CAJ1gpc0Uu4vS2iA_o_W5NaE_QBWDYFZJio7yKvhpaR5f=qWcGA@mail.gmail.com>
2015-01-05 17:09 ` Felipe Balbi
[not found] ` <CAJ1gpc3RZnqizhiasrwS8uy1H_wQAi_T0mPcS8LAK4FhmBRJ6A@mail.gmail.com>
2015-01-12 17:20 ` Felipe Balbi
2015-01-12 17:29 ` Paul Bolle
2015-01-12 17:50 ` Felipe Balbi [this message]
[not found] ` <CAJ1gpc0ZQva0u=e=SpBdhhRrTXdj_b3hv3oP=jyNue=1sF8EbA@mail.gmail.com>
2015-01-14 17:02 ` Felipe Balbi
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