linux-kernel - Re: [PATCH v1 0/8] gpio: acpi: Make it working

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Date:   Fri, 24 Mar 2017 15:48:29 +0200
From:   Jarkko Nikula <jarkko.nikula@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        linux-gpio@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        linux-kernel@...r.kernel.org,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-acpi@...r.kernel.org
Subject: Re: [PATCH v1 0/8] gpio: acpi: Make it working

On 03/23/17 21:46, Andy Shevchenko wrote:
> After this series it's possible to use GPIO pins for input (interrupt)
> which were configured as output by BIOS by some reason. It's a crucial
> functionality for IoT open connected boards where user may choose any of
> available pin for almost any of available function, including GPIO input
> (interrupt).
>
> Current bad behaviour was first reported by Jarkko Nikula few months ago.
>
It was actually due HW reset default is input buffer disabled and BIOS 
didn't touch that pin at all if I recall correctly.

For the set:
Tested-by: Jarkko Nikula <jarkko.nikula@...ux.intel.com>