From: Johan Hovold <johan@kernel.org>
To: Oliver Neukum <oneukum@suse.com>
Cc: Karoly Pados <pados@pados.hu>, Johan Hovold <johan@kernel.org>,
Loic Poulain <loic.poulain@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: [v2] USB: serial: cp210x: Fix GPIO in autosuspend
Date: Tue, 19 Mar 2019 11:36:59 +0100 [thread overview]
Message-ID: <20190319103659.GA3178@localhost> (raw)
On Mon, Feb 18, 2019 at 10:17:12AM +0100, Oliver Neukum wrote:
> On So, 2019-02-17 at 18:59 +0100, Karoly Pados wrote:
> > Current GPIO code in cp210x fails to take USB autosuspend into account,
> > making it practically impossible to use GPIOs with autosuspend enabled
> > without user configuration. Fix this like for ftdi_sio in a previous patch.
> > Tested on a CP2102N.
> your patch is looking good to me, but I am afraid there are issues.
> How do the GPIO lines on the device interact with USB reset and system
> suspend?
What was your concern here, Oliver?
Johan
WARNING: multiple messages have this Message-ID (diff)
From: Johan Hovold <johan@kernel.org>
To: Oliver Neukum <oneukum@suse.com>
Cc: Karoly Pados <pados@pados.hu>, Johan Hovold <johan@kernel.org>,
Loic Poulain <loic.poulain@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATCH v2] USB: serial: cp210x: Fix GPIO in autosuspend
Date: Tue, 19 Mar 2019 11:36:59 +0100 [thread overview]
Message-ID: <20190319103659.GA3178@localhost> (raw)
In-Reply-To: <1550481432.11088.4.camel@suse.com>
On Mon, Feb 18, 2019 at 10:17:12AM +0100, Oliver Neukum wrote:
> On So, 2019-02-17 at 18:59 +0100, Karoly Pados wrote:
> > Current GPIO code in cp210x fails to take USB autosuspend into account,
> > making it practically impossible to use GPIOs with autosuspend enabled
> > without user configuration. Fix this like for ftdi_sio in a previous patch.
> > Tested on a CP2102N.
> your patch is looking good to me, but I am afraid there are issues.
> How do the GPIO lines on the device interact with USB reset and system
> suspend?
What was your concern here, Oliver?
Johan
next reply other threads:[~2019-03-19 10:36 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-19 10:36 Johan Hovold [this message]
2019-03-19 10:36 ` [PATCH v2] USB: serial: cp210x: Fix GPIO in autosuspend Johan Hovold
-- strict thread matches above, loose matches on Subject: below --
2019-03-20 9:11 [v2] " Johan Hovold
2019-03-20 9:11 ` [PATCH v2] " Johan Hovold
2019-03-19 17:19 [v2] " Karoly Pados
2019-03-19 17:19 ` [PATCH v2] " Karoly Pados
2019-03-19 17:12 [v2] " Karoly Pados
2019-03-19 17:12 ` [PATCH v2] " Karoly Pados
2019-03-19 13:14 [v2] " Johan Hovold
2019-03-19 13:14 ` [PATCH v2] " Johan Hovold
2019-03-19 11:15 [v2] " Oliver Neukum
2019-03-19 11:15 ` [PATCH v2] " Oliver Neukum
2019-02-20 9:23 [v2] " Johan Hovold
2019-02-20 9:23 ` [PATCH v2] " Johan Hovold
2019-02-18 9:17 [v2] " Oliver Neukum
2019-02-18 9:17 ` [PATCH v2] " Oliver Neukum
2019-02-17 17:59 [v2] " Karoly Pados
2019-02-17 17:59 ` [PATCH v2] " Karoly Pados
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