linux-kernel - Re: [PATCH v4 3/3] Documentation: dt: hwmon: add OF document for LM90

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Message-ID: <523688FB.2010701@nvidia.com>
Date:	Mon, 16 Sep 2013 12:28:43 +0800
From:	Wei Ni <wni@...dia.com>
To:	Stephen Warren <swarren@...dotorg.org>
CC:	"khali@...ux-fr.org" <khali@...ux-fr.org>,
	"linux@...ck-us.net" <linux@...ck-us.net>,
	"broonie@...nel.org" <broonie@...nel.org>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 3/3] Documentation: dt: hwmon: add OF document for
 LM90

On 09/12/2013 11:00 PM, Stephen Warren wrote:
> On 09/12/2013 05:24 AM, Wei Ni wrote:
>> Add OF document for LM90 in Documentation/devicetree/.
> 
>> diff --git a/Documentation/devicetree/bindings/hwmon/lm90.txt b/Documentation/devicetree/bindings/hwmon/lm90.txt
> 
>> +Optional properties:
>> +- vcc-supply: vcc regulator for the supply voltage.
>> +              If this is not set, assuming vcc is always powered.
> 
> I thought that was going to be a "Required Property".

There may have many platforms without regulator, they always power on
this device, so how can they set this "vcc-supply "property if we set it
as "Required Property".
Set to dummy-regulator? but it seems the regulator framework can't
handle it yet.

Wei.

> 

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