linux-kernel - Re: [PATCH] regmap: Kconfig: Select SPMI when REGMAP

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Message-ID: <20140716141842.GO17528@sirena.org.uk>
Date:	Wed, 16 Jul 2014 15:18:42 +0100
From:	Mark Brown <broonie@...nel.org>
To:	"Ivan T. Ivanov" <iivanov@...sol.com>
Cc:	Pramod Gurav <pramod.gurav@...rtplayin.com>,
	Stanimir Varbanov <svarbanov@...sol.com>,
	pramod.gurav.etc@...il.com, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	Josh Cartwright <joshc@...eaurora.org>
Subject: Re: [PATCH] regmap: Kconfig: Select SPMI when REGMAP_SPMI is selected

On Wed, Jul 16, 2014 at 05:00:54PM +0300, Ivan T. Ivanov wrote:
> On Wed, 2014-07-16 at 14:53 +0100, Mark Brown wrote:

> > No, this isn't an either/or thing - the dependency is absolutely
> > mandatory if the device needs SPMI.  The defconfigs are a separate
> > thing, they just exist to give people a starting point for configuring
> > their kernel so if the device using SPMI is important for relevant
> > systems the defconfig needs to be set up to enable it but that's
> > separate to the dependency since there's no need for people to ever even
> > look at defconfigs.

> Then config REGMAP_SPMI should depend on SPMI, right?

No, REGMAP_SPMI is not something that can be enabled directly - it is
selected by its users which should be ensuring that SPMI is enabled as
it is difficult to see a use case for REGMAP_SPMI which does not do
this.

A dependency from a selected symbol will have no effect.

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