linux-kernel - Re: intel-gpio interrupts stop firing with Focaltech I2C-HID touchpad

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Message-ID: <20171116130743.GT17200@lahna.fi.intel.com>
Date:   Thu, 16 Nov 2017 15:07:43 +0200
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Daniel Drake <drake@...lessm.com>
Cc:     heikki.krogerus@...ux.intel.com, Chris Chiu <chiu@...lessm.com>,
        linux-gpio@...r.kernel.org,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        Endless Linux Upstreaming Team <linux@...lessm.com>
Subject: Re: intel-gpio interrupts stop firing with Focaltech I2C-HID touchpad

On Thu, Nov 16, 2017 at 12:01:24PM +0000, Daniel Drake wrote:
> On Thu, Nov 16, 2017 at 11:52 AM, Mika Westerberg
> <mika.westerberg@...ux.intel.com> wrote:
> > Please first check the signal with some analyzator if it works as
> > expected and let's then figure out what needs to be fixed and where ;-)
> 
> It works fine under Windows, so I think it's already clear that there
> is a Linux bug to be solved here.

Can you remove all the "debugging" patches and hacks and then add
"i2c_hid.debug=1" to the kernel command line.

Then reproduce the issue and send me full dmesg and acpidump of the
system. Thanks.