linux-kernel - Re: [PATCH v4] media: et8ek8: add device tree binding documentation

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Message-ID: <20161103124749.GA22180@amd>
Date:   Thu, 3 Nov 2016 13:47:49 +0100
From:   Pavel Machek <pavel@....cz>
To:     Rob Herring <robh@...nel.org>
Cc:     ivo.g.dimitrov.75@...il.com, sakari.ailus@....fi, sre@...nel.org,
        pali.rohar@...il.com, linux-media@...r.kernel.org,
        pawel.moll@....com, mark.rutland@....com,
        ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
        mchehab@....samsung.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] media: et8ek8: add device tree binding documentation

Hi!

> > +Mandatory properties
> > +--------------------
> > +
> > +- compatible: "toshiba,et8ek8"
> > +- reg: I2C address (0x3e, or an alternative address)
> > +- vana-supply: Analogue voltage supply (VANA), 2.8 volts
> > +- clocks: External clock to the sensor
> > +- clock-frequency: Frequency of the external clock to the sensor. Camera
> > +  driver will set this frequency on the external clock.
> 
> This is fine if the frequency is fixed (e.g. an oscillator), but you 
> should use the clock binding if clocks are programable.

It is fixed. So I assume this can stay as is? Or do you want me to add
"The clock frequency is a pre-determined frequency known to be
suitable to the board." as Sakari suggests?

> > +- reset-gpios: XSHUTDOWN GPIO
> 
> Please state what the active polarity is.

As in "This gpio will be set to 1 when the chip is powered." ?

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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