From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Chris Chiu <chiu@endlessm.com>
Cc: mika.westerberg@linux.intel.com, heikki.krogerus@linux.intel.com,
drake@endlessm.com, linus.walleij@linaro.org,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
linux@endlessm.com
Subject: Re: [PATCH v2] pinctrl:intel: Retain HOSTSW_OWN for requested gpio pin
Date: Mon, 8 Apr 2019 20:23:37 +0300 [thread overview]
Message-ID: <20190408172337.GY9224@smile.fi.intel.com> (raw)
In-Reply-To: <20190408095127.6197-1-chiu@endlessm.com>
On Mon, Apr 08, 2019 at 05:51:27PM +0800, Chris Chiu wrote:
> The touchpad of the ASUS laptops E403NA, X540NA, X541NA are not
> responsive after suspend/resume. The following error message
> shows after resume.
> i2c_hid i2c-ELAN1200:00: failed to reset device.
>
> On these laptops, the touchpad interrupt is connected via a GPIO
> pin which is controlled by Intel pinctrl. After system resumes,
> the GPIO is in ACPI mode and no longer works as an IRQ.
>
> This commit saves the HOSTSW_OWN value during suspend, make sure
> the HOSTSW_OWN mode remains the same after resume.
Some comments as per v1 are still applicable to this version.
--
With Best Regards,
Andy Shevchenko
prev parent reply other threads:[~2019-04-08 17:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-08 9:51 Chris Chiu
2019-04-08 17:23 ` Andy Shevchenko [this message]
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