From: Wolfram Sang <wsa-dev@sang-engineering.com>
To: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Cc: linux-i2c@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Lucas De Marchi <lucas.demarchi@intel.com>
Subject: Re: [PATCH] Revert "i2c: designware: do not disable adapter after transfer"
Date: Fri, 25 Nov 2016 23:24:19 +0100 [thread overview]
Message-ID: <20161125222419.GC1456@katana> (raw)
In-Reply-To: <20161125152227.24396-1-jarkko.nikula@linux.intel.com>
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On Fri, Nov 25, 2016 at 05:22:27PM +0200, Jarkko Nikula wrote:
> This reverts commit 0317e6c0f1dc1ba86b8d9dccc010c5e77b8355fa.
>
> Srinivas reported recently touchscreen and touchpad stopped working in
> Haswell based machine in Linux 4.9-rc series with timeout errors from
> i2c_designware:
>
> [ 16.508013] i2c_designware INT33C3:00: controller timed out
> [ 16.508302] i2c_hid i2c-MSFT0001:02: failed to change power setting.
> [ 17.532016] i2c_designware INT33C3:00: controller timed out
> [ 18.556022] i2c_designware INT33C3:00: controller timed out
> [ 18.556315] i2c_hid i2c-ATML1000:00: failed to retrieve report from device.
>
> I managed to reproduce similar errors on another Haswell based machine
> where touchscreen initialization fails maybe in every 1/5 - 1/2 boots.
> Since root cause for these errors is not clear yet and debugging is
> ongoing it's better to revert this commit as we are near to release.
>
> Reported-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
> Cc: Lucas De Marchi <lucas.demarchi@intel.com>
> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Applied to for-current, thanks!
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prev parent reply other threads:[~2016-11-25 22:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-25 15:22 [PATCH] Revert "i2c: designware: do not disable adapter after transfer" Jarkko Nikula
2016-11-25 22:24 ` Wolfram Sang [this message]
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