linux-kernel - Re: [PATCH v2 2/2] regulator: s5m8767: Document new bindings for Buck9 GPIO control

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Date:	Wed, 22 Jan 2014 19:49:27 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Rob Landley <rob@...dley.net>,
	Sangbeom Kim <sbkim73@...sung.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Grant Likely <grant.likely@...aro.org>,
	Sachin Kamat <sachin.kamat@...aro.org>,
	Amit Daniel Kachhap <amit.daniel@...sung.com>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v2 2/2] regulator: s5m8767: Document new bindings for
 Buck9 GPIO control

On Wed, Jan 22, 2014 at 05:07:28PM +0100, Krzysztof Kozlowski wrote:
> Add documentation for new bindings for controlling (enable/disable) the
> Buck9 Converter by GPIO (BUCK9EN).

Your CC list for this is *very* large...

> +	- s5m8767,pmic-ext-control-enable: regulator can be enabled/disabled
> +		by GPIO (valid only for buck9).
> +	- s5m8767,pmic-ext-control-gpio: GPIO specifier for one GPIO
> +		controlling this regulator (valid only for buck9).
> +		This property is required when 's5m8767,pmic-ext-control-enable' is specified.

In what situation might the GPIO be present but not usable - can't we
just use the presence of the GPIO property?  Also GPIO properties are
supposed to be always "-gpios".

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