linux-kernel - Re: [PATCH 2/2] pinctrl: add a generic control interface

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Message-ID: <CACRpkdaZQ12W2M9m=vvQ=w6vRppgsZdphm4ftmx6uFAX2HDkog@mail.gmail.com>
Date:	Fri, 21 Oct 2011 14:51:46 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Barry Song <21cnbao@...il.com>,
	Shawn Guo <shawn.guo@...escale.com>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	linux-kernel@...r.kernel.org, Stephen Warren <swarren@...dia.com>,
	Linaro Dev <linaro-dev@...ts.linaro.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	David Brown <davidb@...eaurora.org>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH 2/2] pinctrl: add a generic control interface

On Fri, Oct 21, 2011 at 2:30 PM, Mark Brown
<broonie@...nsource.wolfsonmicro.com> wrote:
> On Fri, Oct 21, 2011 at 02:28:25PM +0200, Linus Walleij wrote:
>> If this is a binary output pin, I suspect that
>> I suspect that what you call "off" is actually implemeted as
>> in this figure:
>
> To repeat once more: this is *not* an on/off control, this is a control
> selecting the voltage domain a pin is referenced to.

Sorry, slow learner. So I'll add:
PIN_CONFIG_ENABLE_POWER
PIN_CONFIG_DISABLE_POWER

With the semantics of enabling/disabling the power
supply for the pin logic. Correct now?

Yours,
Linus Walleij
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