linux-kernel - Re: [PATCH 2/2] regulator: core: add support for configuring turn-on time through constraints

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Message-ID: <522F3691.3090805@wwwdotorg.org>
Date:	Tue, 10 Sep 2013 09:11:13 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Laxman Dewangan <ldewangan@...dia.com>
CC:	broonie@...nel.org, rob.herring@...xeda.com, mark.rutland@....com,
	rob@...dley.net, devicetree@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	lgirdwood@...il.com
Subject: Re: [PATCH 2/2] regulator: core: add support for configuring turn-on
 time through constraints

On 09/10/2013 05:18 AM, Laxman Dewangan wrote:
> The Turn-ON time of the regulator depends on the regulator device's
> electrical characteristics. Sometimes regulator turn-on time also
> depends on the capacitive load on the given platform and it can be
> more than the datasheet value.
> 
> The driver provides the enable-time as per datasheet.
> 
> Add support for configure the enable time through regulator constraints
> so that regulator core can take this value for enable time for that
> regulator.

> diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt

> +- regulator-enable-time: Turn ON time for regulator(in uS)

Bike-shedding slightly: This isn't really the time it takes to enable a
regulator, but the time the voltage takes to become stable, or settle.
Perhaps name the property regulator-settle-time/regulator-settle-delay?
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