linux-kernel - Re: [PATCH v3 1/1] pinctrl: add Intel BayTrail GPIO/pinctrl support

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Date:	Wed, 23 Apr 2014 16:59:16 +0300
From:	"Westerberg, Mika" <mika.westerberg@...el.com>
To:	Timur Tabi <timur@...eaurora.org>
Cc:	Mathias Nyman <mathias.nyman@...ux.intel.com>,
	Linus <linus.walleij@...aro.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	lkml <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH v3 1/1] pinctrl: add Intel BayTrail GPIO/pinctrl support

On Wed, Apr 23, 2014 at 07:07:13AM -0500, Timur Tabi wrote:
> Mathias Nyman wrote:
> >
> >Helper functions to translate the ACPI GpioIO and GpioInt resources to
> >linux gpio numbers can be found in gpio/gpiolib-acpi.c together with
> >other ACPI and gpio related helper functions.
> 
> Does this also cover pin control and pin muxing?  Sorry, but I
> sometimes I get confused.  It appears to me that the GpioIo and
> GpioInt functions require pin muxing, but I don't see that support
> in gpiolib-acpi.

It doesn't do any pin control nor muxing and I'm not sure if it is
required. Can you elaborate why you think pin muxing is required with
GpioIo/GpioInt resources?
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