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Date:   Tue, 25 Aug 2020 17:17:01 +0200
From:   Kévin L'hôpital <kevin.lhopital@...tlin.com>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     linux-media@...r.kernel.org, mchehab@...nel.org,
        robh+dt@...nel.org, mark.rutland@....com, wens@...e.org,
        yong.deng@...ewell.com, p.zabel@...gutronix.de,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        paul.kocialkowski@...tlin.com, thomas.petazzoni@...tlin.com
Subject: Re: [PATCH 2/7] dt-bindings: media: i2c: Add documentation for
 ov8865

Hello,

Le Mon, 24 Aug 2020 18:59:10 +0200,
Maxime Ripard <maxime@...no.tech> a écrit :

> Hi,
> 
> On Fri, Aug 21, 2020 at 04:59:30PM +0200, Kévin L'hôpital wrote:
> > Add a documentation for the sensor ov8865 from Omnivision.
> > 
> > Signed-off-by: Kévin L'hôpital <kevin.lhopital@...tlin.com>  
> 
> In order to ease the submission of both drivers, you should probably
> split this series into two, one with the MIPI-CSI driver, and one with
> the ov8865 driver.
> 

Yes, you are right. I will do this.

> > ---
> >  .../devicetree/bindings/media/i2c/ov8865.txt  | 51
> > +++++++++++++++++++ 1 file changed, 51 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/media/i2c/ov8865.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/media/i2c/ov8865.txt
> > b/Documentation/devicetree/bindings/media/i2c/ov8865.txt new file
> > mode 100644 index 000000000000..ac5a662288de
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/i2c/ov8865.txt
> > @@ -0,0 +1,51 @@
> > +* Omnivision OV8865 MIPI CSI-2
> > +
> > +Required Properties:
> > +- compatible: should be "ovti,ov8865"
> > +- clocks: reference to the xclk input clock.
> > +- clock-names: should be "xclk".
> > +- DOVDD-supply: Digital I/O voltage supply, 2.8 volts
> > +- AVDD-supply: Analog voltage supply, 2.8 volts
> > +- AFVDD-supply: Analog voltage supply, 2.8 volts
> > +- DVDD-supply: Digital core voltage supply, 1.2 volts
> > +- reset-gpios: reference to the GPIO connected to the reset pin.
> > +	       This is an active low signal to the OV8865.
> > +- powerdown-gpios: reference to the GPIO connected to the
> > powerdown pin.
> > +		   This is an active low signal to the OV8865.
> > +- rotation: as defined in
> > +
> > Documentation/devicetree/bindings/media/video-interfaces.txt,
> > +	    valid values are 0 (sensor mounted upright) and 180
> > (sensor
> > +	    mounted upside down).
> > +- remote-endpoint: a phandle to the bus receiver's endpoint node.
> > +- clock-lanes: should be set to <0> (clock lane on hardware lane
> > 0). +- data-lanes: should be set to <4> (four CSI-2 lanes
> > supported). +
> > +The device node must contain one 'port' child node for its digital
> > output video +port, in accordance with the video interface bindings
> > defined in
> > +Documentation/devicetree/bindings/media/video-interfaces.txt.  
> 
> Free form DT documentation is deprecated nowadays, you should be
> doing a YAML schema instead (like the ov8856 driver).
> 

All right, I will do a YAML schema.

> Maxime

Thank you very much for the review.
Kévin


-- 
Kevin L'Hopital, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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