linux-kernel - Re: [PATCH 1/2] gpio: add pin biasing and drive mode to gpiolib

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Date:	Wed, 20 Apr 2011 17:45:40 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Kyungmin Park <kmpark@...radead.org>, linux-kernel@...r.kernel.org,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Ben Nizette <bn@...sdigital.com>,
	Lee Jones <lee.jones@...aro.org>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] gpio: add pin biasing and drive mode to gpiolib

2011/4/20 Alan Cox <alan@...rguk.ukuu.org.uk>:

>> Even if some people are only muxing pins that can also be used as GPIO,
>> this is not always the case. We can shunt out the same pins to be used as
>> I2C or SPI for example, that means this cannot be handled in a GPIO
>> driver since it has nothing to do with GPIO pins at all.
>
> It sounds very much to me like it belongs in the GPIO driver. That is the
> one piece of code which knows what it is doing for all this configuration.

Yeah whether it goes into drivers/pinpadmux and include/linux/pinpadmux.h
or drivers/gpio and include/linux/gpio.h does not matter to me if that is it's
more natural habitat to most people :-)

Now I need to post v2 of this patchset...

Linus Walleij
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