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[86.49.30.92]) by smtp.gmail.com with ESMTPSA id 16-v6sm23302288wrb.95.2018.10.09.14.03.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 09 Oct 2018 14:03:50 -0700 (PDT) Subject: Re: [PATCH 1/7] dt-bindings: mfd: ds90ux9xx: add description of TI DS90Ux9xx ICs To: Vladimir Zapolskiy , Lee Jones , Linus Walleij , Rob Herring Cc: Laurent Pinchart , Wolfram Sang , devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Sandeep Jain , Vladimir Zapolskiy References: <20181008211205.2900-1-vz@mleia.com> <20181008211205.2900-2-vz@mleia.com> <5631ac17-a1c1-af12-8b30-314880af42df@gmail.com> <4569f3e3-3812-f423-eda9-51e7a4d56a58@mleia.com> From: Marek Vasut Message-ID: Date: Tue, 9 Oct 2018 23:03:49 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/09/2018 10:55 PM, Vladimir Zapolskiy wrote: > 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 >>>> >>>> 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. Then the DT binding document needs updating, because this is completely unclear and confusing. -- Best regards, Marek Vasut