linux-kernel - Re: [PATCH 1/7] dt-bindings: mfd: ds90ux9xx: add description of TI DS90Ux9xx ICs

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Message-ID: <d7536af1-d78f-6d20-81a0-288be1d67f25@mleia.com>
Date:   Tue, 9 Oct 2018 23:55:39 +0300
From:   Vladimir Zapolskiy <vz@...ia.com>
To:     Marek Vasut <marek.vasut@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Wolfram Sang <wsa@...-dreams.de>, devicetree@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Sandeep Jain <Sandeep_Jain@...tor.com>,
        Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
Subject: Re: [PATCH 1/7] dt-bindings: mfd: ds90ux9xx: add description of TI
 DS90Ux9xx ICs

On 10/09/2018 02:11 PM, Vladimir Zapolskiy wrote:
> Hi Marek,
> 
> On 10/09/2018 03:13 AM, Marek Vasut wrote:
>> On 10/08/2018 11:11 PM, Vladimir Zapolskiy wrote:
>>> From: Sandeep Jain <Sandeep_Jain@...tor.com>
>>>
>>> The change adds device tree binding description of TI DS90Ux9xx
>>> series of serializer and deserializer controllers which support video,
>>> audio and control data transmission over FPD-III Link connection.
>>>

[snip]

>>> +Optional properties:
>>> +- reg : Specifies the I2C slave address of a local de-/serializer.
>>> +- power-gpios : GPIO line to control supplied power to the device.
>>
>> Shouldn't this be regulator phandle ?
> 
> It could be, right. I'll ponder upon it.
> 

No, it can not.

The property describes PDB "Power-down Mode Input Pin", it is a control
pin with the predefined voltage, so regulator phandle is not applicable
here.

--
Best wishes,
Vladimir