From mboxrd@z Thu Jan  1 00:00:00 1970
From: AceLan Kao <acelan.kao@canonical.com>
Subject: Re: [PATCH] pinctrl: intel: add blacklist list for XPS machines
Date: Wed, 5 Oct 2016 20:47:38 +0800
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To: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Calvin Johnson <linux.cj@gmail.com>, Heikki Krogerus <heikki.krogerus@linux.intel.com>, Linus Walleij <linus.walleij@linaro.org>, linux-gpio@vger.kernel.org

The patch doesn't work, so I filed a bug on kernel bugzilla[1]
Closing and opening the lid to trigger this issue doesn't have any
explicit error message in dmesg,
but anyway, I attached all these logs on bugzilla.
Thanks.

1. https://bugzilla.kernel.org/show_bug.cgi?id=176361

2016-10-05 17:32 GMT+08:00 Mika Westerberg <mika.westerberg@linux.intel.com>:
> On Wed, Oct 05, 2016 at 05:23:08PM +0800, AceLan Kao wrote:
>> Or maybe anyone of you can give me some hints, which pin related to
>> the touchscreen which is connected on USB port.
>> I can do some test to see if I can find other solution.
>> The issue we encountered is that closing the lid to enter S3 and then
>> open the lid to wake up, the touchscreen fails to work.
>> By other ways to enter S3, pm-suspend, or click from GUI, the
>> touchscreen still works after waking up.
>
> You can start by either filing a bug in the kernel bugzilla or
> alternatively send me full dmesg of the error. Also include output of
> /proc/interrupts before and after suspend.
>
> You can also try the following patch:
>
> https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?h=x86/urgent&id=db91aa793ff984ac048e199ea1c54202543952fe
>
> It fixes a memory corruption during suspend/resume which might be
> related to the issue you are seeing.