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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Jean Delvare <jdelvare@suse.de>,
	"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Mathias Nyman <mathias.nyman@intel.com>
Subject: Re: [PATCH] pinctrl: intel: Turn Baytrail support to tristate
Date: Tue, 16 Feb 2016 10:53:46 +0200	[thread overview]
Message-ID: <20160216085346.GA1742@lahna.fi.intel.com> (raw)
In-Reply-To: <CACRpkdaBBeZbbZGduHOJKuqQmCdyXaMatFt97Bjxsbfdf6V3Rw@mail.gmail.com>

On Tue, Feb 16, 2016 at 12:13:36AM +0100, Linus Walleij wrote:
> On Thu, Feb 11, 2016 at 12:23 PM, Mika Westerberg
> <mika.westerberg@linux.intel.com> wrote:
> > On Thu, Feb 11, 2016 at 12:05:51PM +0100, Jean Delvare wrote:
> >> The pinctrl-baytrail driver builds just fine as a module so give
> >> users this option.
> >
> > IIRC the reason why this is built-in is that there are all kind of ACPI
> > GPIO magic happening behind the scenes on Baytrail-T based machines
> > (such as Asus T100) and it does not work without the GPIO driver. Some
> > of the stuff is done pretty early too.
> 
> Hm I wonder if that could be the case for the AMD driver that just
> got tristated too...

If they use ACPI GPIO events and operation regions early at boot then it
can be the case.

  reply	other threads:[~2016-02-16  8:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-11 11:05 [PATCH] pinctrl: intel: Turn Baytrail support to tristate Jean Delvare
2016-02-11 11:23 ` Mika Westerberg
2016-02-15 23:13   ` Linus Walleij
2016-02-16  8:53     ` Mika Westerberg [this message]
2016-02-16  9:15       ` Jean Delvare
2016-02-16  9:49         ` Mika Westerberg
2016-02-16 10:25           ` Jean Delvare
2016-02-16 10:34             ` Mika Westerberg

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