linux-kernel - Re: [PATCH 2/6] ASoC: codecs: AK4641 depends on GPIOLIB

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Date:	Mon, 3 Oct 2011 14:45:27 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	Arnd Bergmann <arnd@...db.de>, alsa-devel@...a-project.org,
	Dmitry Artamonow <mad_soft@...ox.ru>,
	Liam Girdwood <lrg@...com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] ASoC: codecs: AK4641 depends on GPIOLIB

On Sun, Oct 02, 2011 at 09:41:07PM +0100, Mark Brown wrote:
> On Sun, Oct 02, 2011 at 10:28:00PM +0200, Arnd Bergmann wrote:
> > This driver only builds correctly on platforms that use
> > GPIOLIB. Disable it otherwise.
> 
> No, gpiolib is one implementation of the GPIO API but if platforms want
> to go and define their own that's currently OK (personally I think at
> this point we should just be converting all the stragglers over to
> gpiolib).  As things stand we shouldn't have dependencies on a
> particular implementation of the API.

Then it should depend on GENERIC_GPIO (not to be confused with GPIO_GENERIC,
the generic gpiolib driver), which is the symbol meaning that the GPIO API
is provided by something.
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