Message-ID: <523688FB.2010701@nvidia.com>
Date: Mon, 16 Sep 2013 12:28:43 +0800
From: Wei Ni <wni@nvidia.com>
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To: Stephen Warren <swarren@wwwdotorg.org>
CC: "khali@linux-fr.org" <khali@linux-fr.org>,
        "linux@roeck-us.net" <linux@roeck-us.net>,
        "broonie@kernel.org" <broonie@kernel.org>,
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        "linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4 3/3] Documentation: dt: hwmon: add OF document for
 LM90
References: <1378985061-28547-1-git-send-email-wni@nvidia.com> <1378985061-28547-4-git-send-email-wni@nvidia.com> <5231D709.5080308@wwwdotorg.org>
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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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